Evidence for light-by-light scattering in heavy-ion collisions with the ATLAS detector at the LHC

Journal name:
Nature Physics
Volume:
13,
Pages:
852–858
Year published:
DOI:
doi:10.1038/nphys4208
Received
Accepted
Published online

Abstract

Light-by-light scattering (γγ right arrow γγ) is a quantum-mechanical process that is forbidden in the classical theory of electrodynamics. This reaction is accessible at the Large Hadron Collider thanks to the large electromagnetic field strengths generated by ultra-relativistic colliding lead ions. Using 480μb−1 of lead–lead collision data recorded at a centre-of-mass energy per nucleon pair of 5.02 TeV by the ATLAS detector, here we report evidence for light-by-light scattering. A total of 13 candidate events were observed with an expected background of 2.6 ± 0.7 events. After background subtraction and analysis corrections, the fiducial cross-section of the process Pb + Pb (γγ) right arrow Pb() +  Pb()γγ, for photon transverse energy ET > 3GeV, photon absolute pseudorapidity |η| < 2.4, diphoton invariant mass greater than 6 GeV, diphoton transverse momentum lower than 2GeV and diphoton acoplanarity below 0.01, is measured to be 70 ± 24 (stat.) ± 17 (syst.) nb, which is in agreement with the standard model predictions.

At a glance

Figures

  1. Diagrams illustrating the QED LbyL interaction processes and the equivalent photon approximation.
    Figure 1: Diagrams illustrating the QED LbyL interaction processes and the equivalent photon approximation.

    a, Diagrams for Delbrück scattering (left), photon splitting (middle) and elastic LbyL scattering (right). Each cross denotes external field legs, for example, an atomic Coulomb field or a strong background magnetic field. b, Illustration of an ultra-peripheral collision of two lead ions. Electromagnetic interaction between the ions can be described as an exchange of photons that can couple to form a given final state X. The flux of photons is determined from the Fourier transform of the electromagnetic field of the ion, taking into account the nuclear electromagnetic form factors.

  2. Photon identification and reconstruction efficiencies.
    Figure 2: Photon identification and reconstruction efficiencies.

    a, Photon PID efficiency as a function of photon ET extracted from FSR event candidates. b, Photon reconstruction efficiency as a function of photon ET (approximated with ETepTtrk2) extracted from γγ right arrow e+e events with a hard-bremsstrahlung photon. Data (filled markers) are compared with MC simulations (open markers). The statistical uncertainties arising from the finite size of the data and simulation samples are indicated by vertical bars.

  3. Kinematic distributions for [gamma][gamma] [rarr] [gamma][gamma] event candidates.
    Figure 3: Kinematic distributions for γγ right arrow γγ event candidates.

    a, Diphoton acoplanarity before applying the Aco < 0.01 requirement. b, Diphoton invariant mass after applying the Aco < 0.01 requirement. Data (points) are compared to MC predictions (histograms). The statistical uncertainties on the data are shown as vertical bars.

Introduction

One of the key features of Maxwells equations is their linearity in both the sources and the fields, from which follows the superposition principle. This forbids effects such as light-by-light (LbyL) scattering, γγ right arrow γγ, which is a purely quantum-mechanical process. It was realized in the early history of quantum electrodynamics (QED) that LbyL scattering is related to the polarization of the vacuum1. In the standard model of particle physics, the virtual particles that mediate the LbyL coupling are electrically charged fermions or W± bosons. In QED, the γγ right arrow γγ reaction proceeds at lowest order in the fine-structure constant (αem) via virtual one-loop box diagrams involving fermions (Fig. 1a), which is an (αem4 3 × 109) process, making it challenging to test experimentally. Indeed, the elastic LbyL scattering has remained unobserved: even the ultra-intense laser experiments are not yet powerful enough to probe this phenomenon2.

Figure 1: Diagrams illustrating the QED LbyL interaction processes and the equivalent photon approximation.
Diagrams illustrating the QED LbyL interaction processes and the equivalent photon approximation.

a, Diagrams for Delbrück scattering (left), photon splitting (middle) and elastic LbyL scattering (right). Each cross denotes external field legs, for example, an atomic Coulomb field or a strong background magnetic field. b, Illustration of an ultra-peripheral collision of two lead ions. Electromagnetic interaction between the ions can be described as an exchange of photons that can couple to form a given final state X. The flux of photons is determined from the Fourier transform of the electromagnetic field of the ion, taking into account the nuclear electromagnetic form factors.

LbyL scattering via an electron loop has been precisely, albeit indirectly, tested in measurements of the anomalous magnetic moment of the electron and muon3, 4 where it is predicted to contribute substantially, as one of the QED corrections5. The γγ right arrow γγ reaction has been measured in photon scattering in the Coulomb field of a nucleus (Delbrück scattering) at fixed photon energies below 7GeV (refs 6,7,8,9). The analogous process, where a photon splits into two photons by interaction with external fields (photon splitting), has been observed in the energy region of 0.1–0.5GeV (ref. 10). A related process involving only real photons, in which several photons fuse to form an electron–positron pair (e+e), has been measured in ref. 11. Similarly, the multiphoton Compton scattering, in which up to four laser photons interact with an electron, has been observed12.

An alternative way by which LbyL interactions can be studied is by using relativistic heavy-ion collisions. In ‘ultra-peripheral collision (UPC) events, with impact parameters larger than twice the radius of the nuclei13, 14, the strong interaction does not play a role. The electromagnetic (EM) field strengths of relativistic ions scale with the proton number (Z). For example, for a lead (Pb) nucleus with Z = 82 the field can be up to 1025 Vm−1 (ref. 15), much larger than the Schwinger limit16 above which QED corrections become important. In the 1930s it was found that highly relativistic charged particles can be described by the equivalent photon approximation (EPA)17, 18, 19, which is schematically shown in Fig. 1b. The EM fields produced by the colliding Pb nuclei can be treated as a beam of quasi-real photons with a small virtuality of Q2 < 1/R2, where R is the radius of the charge distribution and so Q2 < 10−3GeV2. Then, the cross-section for the reaction Pb + Pb (γγ) right arrow Pb + Pb γγ can be calculated by convolving the respective photon flux with the elementary cross-section for the process γγ right arrow γγ. Since the photon flux associated with each nucleus scales as Z2, the cross-section is extremely enhanced as compared with proton–proton (pp) collisions.

In this article, a measurement of LbyL scattering in Pb + Pb collisions at the Large Hadron Collider (LHC) is reported, following the approach recently proposed in ref. 20. The final-state signature of interest is the exclusive production of two photons, Pb + Pb (γγ) right arrow Pb() + Pb()γγ, where a possible EM excitation of the outgoing ions21 is denoted by (). Hence, the expected signature is two photons and no further activity in the central detector, since the Pb() ions escape into the LHC beam pipe. Moreover, it is predicted that the background is relatively low in heavy-ion collisions and is dominated by exclusive dielectron (γγ right arrow e+e) production20, 22. The misidentification of electrons as photons can occur when the electron track is not reconstructed or the electron emits a hard-bremsstrahlung photon. The fiducial cross-section of the process γγ right arrow γγ in Pb + Pb collisions is measured, using a data set recorded at a nucleon–nucleon centre-of-mass energy ( ) of 5.02TeV. This data set was recorded with the ATLAS detector at the LHC in 2015 and corresponds to an integrated luminosity of 480 ± 30μb−1. In addition to the measured fiducial cross-section, the significance of the observed number of signal candidate events is given, assuming the background-only hypothesis.

Experimental set-up

ATLAS is a cylindrical particle detector composed of several sub-detectors23. ATLAS uses a right-handed coordinate system with its origin at the nominal interaction point in the centre of the detector and the z axis along the beam pipe. The x axis points from the interaction point to the centre of the LHC ring, and the y axis points upwards. Cylindrical coordinates (r, ϕ) are used in the transverse plane, with ϕ being the azimuthal angle around the z axis. The pseudorapidity is defined in terms of the polar angle θ asη = −ln tan(θ/2).

Angular distance is measured in units of . The photon or electron transverse energy is ET = E sin(θ), where E is its energy. The inner tracking detector (ITD) consists of a silicon pixel system, a silicon microstrip detector and a straw-tube tracker immersed in a 2T magnetic field provided by a superconducting solenoid. The ITD track reconstruction efficiency is estimated in ref. 24 for minimum-bias pp events that, like UPC Pb + Pb events, have a low average track multiplicity. For charged hadrons in the transverse momentum range 100 < pT < 200MeV the efficiency is about 50% and grows to 80% for pT > 200MeV. Around the tracker there is a system of EM and hadronic calorimeters, which use liquid argon and lead, copper or tungsten absorbers for the EM and forward (|η| > 1.7) hadronic components of the detector, and scintillator-tile active material and steel absorbers for the central (|η| < 1.7) hadronic component. The muon spectrometer consists of separate trigger and high-precision tracking chambers measuring the trajectory of muons in a magnetic field generated by superconducting air-core toroids. The ATLAS minimum-bias trigger scintillators (MBTSs) consist of scintillator slabs positioned between the ITD and the endcap calorimeters with each side having an outer ring of four slabs segmented in azimuthal angle, covering 2.07 < |η| < 2.76 and an inner ring of eight slabs, covering 2.76 < |η| < 3.86. The ATLAS zero-degree calorimeters (ZDCs), located along the beam axis at 140m from the interaction point on both sides, detect neutral particles (including neutrons emitted from the nucleus). The ATLAS trigger system25 consists of a Level-1 trigger implemented using a combination of dedicated electronics and programmable logic, and a software-based high-level trigger.

Monte Carlo simulation and theoretical predictions

Several Monte Carlo (MC) samples are produced to estimate background contributions and corrections to the fiducial measurement. The detector response is modelled using a simulation based on GEANT4 (refs 26,27). The data and MC simulated events are passed through the same reconstruction and analysis procedures.

LbyL signal events are generated taking into account box diagrams with charged leptons and quarks in the loops, as detailed in ref. 28. The contributions from W-boson loops are omitted in the calculations since they are mostly important for diphoton masses mγγ > 2mW (ref. 29). The calculations are then convolved with the Pb + Pb EPA spectrum from the STARlight 1.1 MC generator30. Next, various diphoton kinematic distributions are cross-checked with predictions from ref. 20 and good agreement is found. The theoretical uncertainty on the cross-section is mainly due to limited knowledge of the nuclear electromagnetic form factors and the related initial photon fluxes. This is studied in ref. 20 and the relevant uncertainty is conservatively estimated to be 20%. Higher-order corrections (not included in the calculations) are also part of the theoretical uncertainty and are of the order of a few per cent for diphoton invariant masses below 100GeV (refs 31,32).

The sources of background considered in this analysis are: γγ right arrow e+e, central exclusive production (CEP) of photon pairs, exclusive production of quark–antiquark pairs ( ) and other backgrounds that could mimic the diphoton event signatures. The γγ right arrow e+e background is modelled with STARlight 1.1 (ref. 30), in which the cross-section is computed by combining the Pb + Pb EPA with the leading-order formula for γγ right arrow e+e. This process has been recently measured by the ALICE Collaboration, and a good agreement with STARlight is found33. The exclusive diphoton final state can be also produced via the strong interaction through a quark loop in the exchange of two gluons in a colour-singlet state (see Supplementary Fig. 2). This CEP process, gg right arrow γγ, is modelled using SUPERCHIC 2.03 (ref. 34), in which the pp cross-section has been scaled by A2Rg4 as suggested in ref. 20, where A = 208 and Rg 0.7 is a gluon shadowing correction35. This process has a large theoretical uncertainty, of (100%), mostly related to incomplete knowledge of gluon densities36. The contribution is estimated using Herwig + + 2.7.1 (ref. 37) where the EPA formalism in pp collisions is implemented. The sample is then normalized to the corresponding cross-section in Pb + Pb collisions30.

Event selection

Candidate diphoton events were recorded in the Pb + Pb run in 2015 using a dedicated trigger for events with moderate activity in the calorimeter but little additional activity in the entire detector. At Level-1 the total ET registered in the calorimeter after noise suppression was required to be between 5 and 200GeV. Then at the high-level trigger, events were rejected if more than one hit was found in the inner ring of the MBTS (MBTS veto) or if more than ten hits were found in the pixel detector.

The efficiency of the Level-1 trigger is estimated with γγ right arrow e+e events passing an independent supporting trigger. This trigger is designed to select events with mutual dissociation of Pb nuclei and small activity in the ITD. It is based on a coincidence of signals in both ZDC sides and a requirement on the total ET in the calorimeter below 50GeV. Event candidates are required to have only two reconstructed tracks and two EM energy clusters. Furthermore, to reduce possible backgrounds, each pair of clusters (cl1, cl2) is required to have a small acoplanarity (1 − Δϕcl1, cl2/π < 0.2). The extracted Level-1 trigger efficiency is provided as a function of the sum of cluster transverse energies (ETcl1 + ETcl2). The efficiency grows from about 70% at (ETcl1 + ETcl2) = 6GeV to 100% at (ETcl1 + ETcl2) > 9GeV. The efficiency is parameterized using an error function fit, which is then used to reweight the simulation. Due to the extremely low noise, very high hit reconstruction efficiency and low conversion probability of signal photons in the pixel detector (around 10%), the uncertainty due to the requirement for minimal activity in the ITD is negligible. The MBTS veto efficiency was studied using γγ right arrow + events ( = e, μ) passing a supporting trigger and it is estimated to be (98 ± 2)%.

Photons are reconstructed from EM clusters in the calorimeter and tracking information provided by the ITD, which allows the identification of photon conversions. Selection requirements are applied to remove EM clusters with a large amount of energy from poorly functioning calorimeter cells, and a timing requirement is made to reject out-of-time candidates. An energy calibration specifically optimized for photons38 is applied to the candidates to account for upstream energy loss and both lateral and longitudinal shower leakage. A dedicated correction39 is applied for photons in MC samples to correct for potential mismodelling of quantities that describe the properties (‘shapes) of the associated EM showers.

The photon particle identification (PID) in this analysis is based on three shower-shape variables: the lateral width of the shower in the middle layer of the EM calorimeter, the ratio of the energy difference associated with the largest and second largest energy deposits to the sum of these energies in the first layer, and the fraction of energy reconstructed in the first layer relative to the total energy of the cluster. Only photons with ET > 3GeV and |η| < 2.37, excluding the calorimeter transition region 1.37 < |η| < 1.52, are considered. The pseudorapidity requirement ensures that the photon candidates pass through regions of the EM calorimeter where the first layer is segmented into narrow strips, allowing for good separation between genuine prompt photons and photons coming from the decay of neutral hadrons. A constant photon PID efficiency of 95% as a function of η with respect to reconstructed photon candidates is maintained. This is optimized using multivariate analysis techniques40, such that EM energy clusters induced by cosmic-ray muons are rejected with 95% efficiency.

Preselected events are required to have exactly two photons satisfying the above selection criteria, with a diphoton invariant mass greater than 6GeV. To reduce the dielectron background, a veto on the presence of any charged-particle tracks (with pT > 100MeV, |η| < 2.5 and at least one hit in the pixel detector) is imposed. This requirement further reduces the fake-photon background from the dielectron final state by a factor of 25, according to simulation. It has almost no impact on γγ right arrow γγ signal events, since the probability of photon conversion in the pixel detector is relatively small and converted photons are suppressed at low ET (3–6GeV) by the photon selection requirements. According to MC studies, the photon selection requirements remove about 10% of low-ET photons. To reduce other fake-photon backgrounds (for example, cosmic-ray muons), the transverse momentum of the diphoton system (pTγγ) is required to be below 2 GeV. To reduce background from CEP gg right arrow γγ reactions, an additional requirement on diphoton acoplanarity, Aco = 1 − Δϕγγ/π < 0.01, is imposed. This requirement is optimized to retain a high signal efficiency and reduce the CEP background significantly, since the transverse momentum transferred by the photon exchange is usually much smaller than that due to the colour-singlet-state gluons41.

Performance and validation of photon reconstruction

Since the analysis requires the presence of low-energy photons, which are not typically used in ATLAS analyses, detailed studies of photon reconstruction and calibration are performed.

High-pT γγ right arrow + production with a final-state radiation (FSR) photon is used for the measurement of the photon PID efficiency. Events with a photon and two tracks corresponding to oppositely charged particles with pT > 1GeV are required to pass the same trigger as in the diphoton selection or the supporting trigger. The ΔR between a photon candidate and a track is required to be greater than 0.2 to avoid leakage of the electron clusters from the γγ right arrow e+e process to the photon cluster. The FSR event candidates are identified using a pTttγ < 1GeV requirement, where pTttγ is the transverse momentum of the three-body system consisting of two charged-particle tracks and a photon. The FSR photons are then used to extract the photon PID efficiency, which is defined as the probability for a reconstructed photon to satisfy the identification criteria. Figure 2a shows the photon PID efficiencies in data and simulation as a function of reconstructed photon ET. Within their statistical precision the two results agree.

Figure 2: Photon identification and reconstruction efficiencies.
Photon identification and reconstruction efficiencies.

a, Photon PID efficiency as a function of photon ET extracted from FSR event candidates. b, Photon reconstruction efficiency as a function of photon ET (approximated with ETepTtrk2) extracted from γγ right arrow e+e events with a hard-bremsstrahlung photon. Data (filled markers) are compared with MC simulations (open markers). The statistical uncertainties arising from the finite size of the data and simulation samples are indicated by vertical bars.

The photon reconstruction efficiency is extracted from data using γγ right arrow e+e events where one of the electrons emits a hard-bremsstrahlung photon due to interaction with the material of the detector. Events with exactly one identified electron, two reconstructed charged-particle tracks and exactly one photon are studied. The electron ET is required to be above 5GeV and the pT of the track that is unmatched with the electron (trk2) is required to be below 2 GeV. The additional hard-bremsstrahlung photon is expected to have ETγ (ETepTtrk2). The pTtrk2 < 2GeV requirement ensures a sufficient ΔR separation between the expected photon and the second electron, extrapolated to the first layer of the EM calorimeter. The data sample contains 247 γγ right arrow e+e events that are used to extract the photon reconstruction efficiency, which is presented in Fig. 2b. Good agreement between data and γγ right arrow e+e MC simulation is observed and the photon reconstruction efficiency is measured with a 5–10% relative uncertainty at lowET (3–6GeV).

In addition, a cross-check is performed on Z right arrow μ+μγ events identified in pp collision data from 2015 corresponding to an integrated luminosity of 1.6 fb−1. The results support (in a similar way to ref. 42) the choice to use the three shower-shape variables in this photon PID selection in an independent sample of low-ET photons.

The photon cluster energy resolution is extracted from data using γγ right arrow e+e events. The electrons from the γγ right arrow e+e reaction (see Supplementary Information) are well balanced in their transverse momenta, with very small standard deviation, σpTe+pTe < 30MeV, much smaller than the expected EM calorimeter energy resolution. Therefore, by measuring (ETcl1ETcl2) distributions in γγ right arrow e+e events, one can extract the cluster energy resolution, σETcl. For electrons with ET < 10GeV, the σETcl/ETcl is observed to be approximately 8% both in data and simulation. An uncertainty of δσETγ/σETγ = 15% is assigned to the simulated photon energy resolution and takes into account differences between σETcl in data and σETγ in simulation.

Similarly, the EM cluster energy scale can be studied using the (ETcl1 + ETcl2) distribution. It is observed that the simulation provides a good description of this distribution, within the relative uncertainty of 5% that is assigned to the EM cluster energy-scale modelling.

Background estimation

Due to its relatively high rate, the exclusive production of electron pairs (γγ right arrow e+e) can be a source of fake diphoton events. The contribution from the dielectron background is estimated using γγ right arrow e+e MC simulation (which gives 1.3 events) and is verified using the following data-driven technique. Two control regions are defined that are expected to be dominated by γγ right arrow e+e backgrounds. The first control region is defined by requiring events with exactly one reconstructed charged-particle track and two identified photons that satisfy the same preselection criteria as for the signal definition. The second control region is defined similarly to the first one, except exactly two tracks are required (Ntrk = 2). Good agreement is observed between data and MC simulation in both control regions, but the precision is limited by the number of events in data. A conservative uncertainty of 25% is therefore assigned to the γγ right arrow e+e background estimation, which reflects the statistical uncertainty of data in the Ntrk = 1 control region. The contribution from a related QED process, γγ right arrow e+eγγ, is evaluated using the MadGraph5_aMC@NLO MC generator43 and is found to be negligible.

The Aco < 0.01 requirement significantly reduces the CEP gg right arrow γγ background. However, the MC prediction for this process has a large theoretical uncertainty; hence, an additional data-driven normalization is performed in the region Aco > b, where b is a value greater than 0.01 which can be varied. Three values of b (0.01, 0.02, 0.03) are used, where the central value b = 0.02 is chosen to derive the nominal background prediction and the values b = 0.01 and b = 0.03 to define the systematic uncertainty. The normalization is performed using the condition: fggγγnorm, b = (Ndata (Aco > b) − Nsig (Aco  > b) − Nγγe+e(Aco > b))/Nggγγ (Aco > b), for each value of b, where Ndata is the number of observed events, Nsig is the expected number of signal events, Nγγe+e is the expected background from γγ right arrow e+e events and Nggγγ is the MC estimate of the expected background from CEP gg right arrow γγ events. The normalization factor is found to be fggγγnorm = 0.5 ± 0.3 and the background due to CEP gg right arrow γγ is estimated to be fggγγnorm × Nggγγ (Aco < 0.01) =  0.9  ± 0.5 events. To verify the CEP gg right arrow γγ background estimation method, energy deposits in the ZDC are studied for events before the Aco selection. It is expected that the outgoing ions in CEP events predominantly dissociate, which results in the emission of neutrons detectable in the ZDC20. Good agreement between the normalized CEP gg right arrow γγ MC expectation and the observed events with a ZDC signal corresponding to at least 1 neutron is observed in the full Aco range (see Supplementary Information for details).

Low-pT dijet events can produce multiple π0 mesons, which could potentially mimic diphoton events. The event selection requirements are efficient in rejecting such events, and based on studies performed with a supporting trigger, the background from hadronic processes is estimated to be 0.3 ± 0.3 events. MC studies show that the background from processes is negligible.

Exclusive neutral two-meson production can be a potential source of background for LbyL events, mainly due to their back-to-back topology being similar to that of the CEP gg right arrow γγ process. The cross-section for this process is calculated to be below 10% of the CEP gg right arrow γγ cross-section44, 45 and it is therefore considered to give a negligible contribution to the signal region. The contribution from bottomonia production (for example, γγ right arrow ηb right arrow γγ or γPb right arrow ϒ right arrow γηb right arrow 3γ) is calculated using parameters from refs 46,47 and is found to be negligible.

The contribution from other fake diphoton events (for example those induced by cosmic-ray muons) is estimated using photons that fail to satisfy the longitudinal shower-shape requirement. The total background due to other fake photons is found to be 0.1 ± 0.1 events. As a further cross-check, additional activity in the muon spectrometer is studied. It is observed that out of 18 events satisfying the inverted pTγγ requirement, 13 have at least one additional reconstructed muon. In the region pTγγ < 2GeV, no events with muon activity are found, which is compatible with the above-mentioned estimate of 0.1 ± 0.1.

The contribution from UPC events where both nuclei emit a bremsstrahlung photon is estimated using calculations from ref. 13 and is found to be negligible for photons with |η| < 2.4 and ET > 3GeV.

Results

Photon kinematic distributions for events satisfying the selection criteria are shown in Fig. 3. The shape of the diphoton acoplanarity distribution for γγ right arrow e+e events in Fig. 3a reflects the trajectories of the electron and positron in the detector magnetic field, before they emit hard photons in their collisions with the ITD material. In total, 13 events are observed in data whereas 7.3 signal events and 2.6 background events are expected. In general, good agreement between data and MC simulation is observed. The effect of sequential selection requirements on the number of events selected is shown in Table 1, for each of the data, signal and background samples.

Figure 3: Kinematic distributions for γγ right arrow γγ event candidates.
Kinematic distributions for [gamma][gamma] [rarr] [gamma][gamma] event candidates.

a, Diphoton acoplanarity before applying the Aco < 0.01 requirement. b, Diphoton invariant mass after applying the Aco < 0.01 requirement. Data (points) are compared to MC predictions (histograms). The statistical uncertainties on the data are shown as vertical bars.

Table 1: The number of events accepted by the sequential selection requirements for data, compared with the number of background and signal events expected from the simulation.

To quantify an excess of events over the background expectation, a test statistic based on the profile likelihood ratio48 is used. The p value for the background-only hypothesis, defined as the probability for the background to fluctuate and give an excess of events as large or larger than that observed in the data, is found to be 5 × 10−6. The p value can be expressed in terms of Gaussian tail probabilities, which, given in units of standard deviation (σ), corresponds to a significance of 4.4σ. The expected p value and significance (obtained before the fit of the signal-plus-background hypothesis to the data and using standard model predictions from ref. 28) are 8 × 10−5 and 3.8σ, respectively.

The cross-section for the Pb + Pb (γγ) right arrow Pb() + Pb()γγ process is measured in a fiducial phase space defined by the photon transverse energy ET > 3GeV, photon absolute pseudorapidity |η| < 2.4, diphoton invariant mass greater than 6GeV, diphoton transverse momentum lower than 2GeV and diphoton acoplanarity below 0.01. Experimentally, the fiducial cross-section is given by

where Ndata is the number of selected events in data, Nbkg is the expected number of background events and ∫ Ldt is the integrated luminosity. The factor C is used to correct for the net effect of the trigger efficiency, the diphoton reconstruction and PID efficiencies, as well as the impact of photon energy and angular resolution. It is defined as the ratio of the number of generated signal events satisfying the selection criteria after particle reconstruction and detector simulation to the number of generated events satisfying the fiducial criteria before reconstruction. The value of C and its total uncertainty is determined to be 0.31 ± 0.07. The dominant systematic uncertainties come from the uncertainties on the photon reconstruction and identification efficiencies. Other minor sources of uncertainty are the photon energy scale and resolution uncertainties and trigger efficiency uncertainty. To check for a potential model dependence, calculations from ref. 28 are compared with predictions from ref. 20, and a negligible impact on the C-factor uncertainty is found. Table 2 lists the separate contributions to the systematic uncertainty. The uncertainty on the integrated luminosity is 6%. It is derived following a methodology similar to that detailed in refs 49,50, from a calibration of the luminosity scale using xy beam-separation scans performed in December 2015.

Table 2: Summary of systematic uncertainties.

The measured fiducial cross-section is σfid = 70 ± 24 (stat.) ± 17 (syst.) nb, which is in agreement with the predicted values of 45 ± 9 nb (ref. 20) and 49 ± 10 nb (ref. 28) within uncertainties.

Conclusion

In summary, this article presents evidence for the scattering of LbyL in quasi-real photon interactions from 480μb−1 of ultra-peripheral Pb + Pb collisions at TeV by the ATLAS experiment at the LHC. The statistical significance against the background-only hypothesis is found to be 4.4 standard deviations. After background subtraction and analysis corrections, the fiducial cross-section for the Pb + Pb (γγ) right arrow Pb() + Pb()γγ process was measured and is compatible with standard model predictions.

The analysis is mostly limited by the amount of data available and the lower limit on transverse energy for reconstructed photons (ET = 3GeV), below which more signal is expected. Advancements on these two points would also allow for reconstruction of low-mass mesons decaying into two photons, which in turn could be used to improve detector calibration. The heavy-ion data yield is expected to double at the end of 2018 (and again increase tenfold after LHC Run 4, scheduled to start in 2026), which would significantly reduce the statistical uncertainty. Future upgrades of ATLAS, such as extended tracking acceptance from |η| < 2.5 to |η| < 4.0, will further improve this.

Data availability. The experimental data that support the findings of this study are available in HEPData with the identifier http://dx.doi.org/10.17182/hepdata.77761.

Additional Information

Publishers note: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

References

  1. Heisenberg, W. & Euler, H. Folgerungen aus der Diracschen Theorie des Positrons. Z. Phys. 98, 714732 (1936).
  2. King, B. & Heinzl, T. Measuring vacuum polarisation with high power lasers. High Power Laser Sci. Eng. 4, e5 (2016).
  3. Hanneke, D., Fogwell, S. & Gabrielse, G. New measurement of the electron magnetic moment and the fine structure constant. Phys. Rev. Lett. 100, 120801 (2008).
  4. Bennett, G.W. et al. (Muon g–2 Collaboration) Final report of the muon E821 anomalous magnetic moment measurement at BNL. Phys. Rev. D 73, 072003 (2006).
  5. Laporta, S. & Remiddi, E. The analytical value of the electron light-light graphs contribution to the muon (g − 2) in QED. Phys. Lett. B 301, 440446 (1993).
  6. Wilson, R. R. Scattering of 1.33MeV gamma-rays by an electric field. Phys. Rev. 90, 720721 (1953).
  7. Jarlskog, G. et al. Measurement of Delbrück scattering and observation of photon splitting at high energies. Phys. Rev. D 8, 38133823 (1973).
  8. Schumacher, M. et al. Delbrück scattering of 2.75-MeV photons by lead. Phys. Lett. B 59, 134136 (1975).
  9. Akhmadaliev, S. Z. et al. Delbrück scattering at energies of 140–450MeV. Phys. Rev. C 58, 28442850 (1998).
  10. Akhmadaliev, S. Z. et al. Experimental investigation of high-energy photon splitting in atomic fields. Phys. Rev. Lett. 89, 061802 (2002).
  11. Burke, D. L. et al. Positron production in multi-photon light by light scattering. Phys. Rev. Lett. 79, 16261629 (1997).
  12. Bula, C. et al. Observation of nonlinear effects in Compton scattering. Phys. Rev. Lett. 76, 31163119 (1996).
  13. Bertulani, C. A. & Baur, G. Electromagnetic processes in relativistic heavy ion collisions. Phys. Rep. 163, 299408 (1988).
  14. Natale, A. A., Roldao, C. G. & Carneiro, J. P. V. Two photon final states in peripheral heavy ion collisions. Phys. Rev. C 65, 014902 (2002).
  15. Şengül, M. Y. et al. Electromagnetic heavy-lepton pair production in relativistic heavy-ion collisions. Eur. Phys. J. C 76, 428 (2016).
  16. Schwinger, J. S. On gauge invariance and vacuum polarization. Phys. Rev. 82, 664679 (1951).
  17. Fermi, E. On the theory of collisions between atoms and electrically charged particles. Nuovo Cimento 2, 143158 (1925).
  18. Weizsäcker, C. F. Radiation emitted in collisions of very fast electrons. Z. Phys. 88, 612625 (1934).
  19. Williams, E. J. Nature of the high energy particles of penetrating radiation and status of ionization and radiation formulae. Phys. Rev. 45, 729730 (1934).
  20. dEnterria, D. & Silveira, G. G. Observing light-by-light scattering at the large hadron collider. Phys. Rev. Lett. 111, 080405 (2013); erratum 116, 129901 (2016).
  21. Abelev, B. et al. (ALICE Collaboration) Measurement of the cross section for electromagnetic dissociation with neutron emission in Pb-Pb collisions at TeV. Phys. Rev. Lett. 109, 252302 (2012).
  22. Knapen, S. et al. Searching for axionlike particles with ultraperipheral heavy-ion collisions. Phys. Rev. Lett. 118, 171801 (2017).
  23. ATLAS CollaborationThe ATLAS experiment at the CERN large hadron collider. JINST 3, S08003 (2008).
  24. ATLAS CollaborationCharged-particle distributions at low transverse momentum in TeV pp interactions measured with the ATLAS detector at the LHC. Eur. Phys. J. C 76, 502 (2016).
  25. ATLAS CollaborationPerformance of the ATLAS trigger system in 2010. Eur. Phys. J. C 72, 1849 (2012).
  26. Agostinelli, S. et al. GEANT4: a Simulation toolkit. Nucl. Instrum. Meth. A 506, 250303 (2003).
  27. ATLAS CollaborationThe ATLAS simulation infrastructure. Eur. Phys. J. C 70, 823874 (2010).
  28. Kłusek-Gawenda, M., Lebiedowicz, P. & Szczurek, A. Light-by-light scattering in ultraperipheral Pb-Pb collisions at energies available at the CERN Large Hadron Collider. Phys. Rev. C 93, 044907 (2016).
  29. Fichet, S. et al. Light-by-light scattering with intact protons at the LHC: from standard model to new physics. J. High Energy Phys. 2, 165 (2015).
  30. Klein, S. R. et al. STARlight: a Monte Carlo simulation program for ultra-peripheral collisions of relativistic ions. Comput. Phys. Commun. 212, 258268 (2017).
  31. Bern, Z. et al. QCD and QED corrections to light by light scattering. J. High Energy Phys. 11, 031 (2001).
  32. Kłusek-Gawenda, M., Schäfer, W. & Szczurek, A. Two-gluon exchange contribution to elastic γγ right arrow γγ scattering and production of two-photons in ultraperipheral ultrarelativistic heavy ion and proton-proton collisions. Phys. Lett. B 761, 399407 (2016).
  33. Abbas, E. et al. (ALICE Collaboration) Charmonium and e+e pair photoproduction at mid-rapidity in ultra-peripheral Pb-Pb collisions at TeV. Eur. Phys. J. C 73, 2617 (2013).
  34. Harland-Lang, L. A., Khoze, V. A. & Ryskin, M. G. Exclusive physics at the LHC with SuperChic 2. Eur. Phys. J. C 76, 9 (2016).
  35. Eskola, K. J., Paukkunen, H. & Salgado, C. A. EPS09: a new generation of NLO and LO nuclear parton distribution functions. J. High Energy Phys. 4, 065 (2009).
  36. Aaltonen, T. et al. (CDF Collaboration) Observation of exclusive gamma gamma production in collisions at TeV. Phys. Rev. Lett. 108, 081801 (2012).
  37. Bähr, M. et al. Herwig + + physics and manual. Eur. Phys. J. C 58, 639707 (2008).
  38. ATLAS CollaborationElectron and photon energy calibration with the ATLAS detector using LHC Run 1 data. Eur. Phys. J. C 74, 3071 (2014).
  39. ATLAS CollaborationMeasurement of the photon identification efficiencies with the ATLAS detector using LHC Run-1 data. Eur. Phys. J. C 76, 666 (2016).
  40. Höcker, A. et al. TMVA - toolkit for multivariate data analysis. PoS ACAT Preprint at http://arXiv.org/abs/physics/0703039 (2007).
  41. Baur, G. et al. Coherent gamma gamma and gamma-A interactions in very peripheral collisions at relativistic ion colliders. Phys. Rep. 364, 359450 (2002).
  42. ATLAS Collaboration. Reconstruction of Collinear Final-State-Radiation Photons in Z Decays to Muons in TeV Proton-Proton Collisions (ATLAS-CONF-2012-143, 2012); https://cds.cern.ch/record/1491697
  43. Alwall, J. et al. The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations. J. High Energy Phys. 7, 79 (2014).
  44. Harland-Lang, L. A. et al. Central exclusive meson pair production in the perturbative regime at hadron colliders. Eur. Phys. J. C 71, 1714 (2011).
  45. Harland-Lang, L. A. et al. Central exclusive production as a probe of the gluonic component of the eta and eta mesons. Eur. Phys. J. C 73, 2429 (2013).
  46. Ebert, D., Faustov, R. N. & Galkin, V. O. Properties of heavy quarkonia and Bc mesons in the relativistic quark model. Phys. Rev. D 67, 014027 (2003).
  47. Segovia, J. et al. Bottomonium spectrum revisited. Phys. Rev. D 93, 074027 (2016).
  48. Cowan, G. et al. Asymptotic formulae for likelihood-based tests of new physics. Eur. Phys. J. C 71, 1554 (2011); erratum 73, 2501 (2013).
  49. ATLAS CollaborationImproved luminosity determination in pp collisions at TeV using the ATLAS detector at the LHC. Eur. Phys. J. C 73, 2518 (2013).
  50. ATLAS CollaborationLuminosity determination in pp collisions at TeV using the ATLAS detector at the LHC. Eur. Phys. J. C 76, 653 (2016).
  51. ATLAS Collaboration. ATLAS Computing Acknowledgements 2016–2017, ATL-GEN-PUB-2016-002 (2016); https://cds.cern.ch/record/2199109

Download references

Acknowledgements

We thank CERN for the very successful operation of the LHC, as well as the support staff from our institutions without whom ATLAS could not be operated efficiently. We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWFW and FWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; CAS, MOST and NSFC, China; COLCIENCIAS, Colombia; MSMT CR, MPO CR and VSC CR, Czech Republic; DNRF and DNSRC, Denmark; IN2P3-CNRS, CEA-DSM/IRFU, France; GNSF, Georgia; BMBF, HGF and MPG, Germany; GSRT, Greece; RGC, Hong Kong SAR, China; ISF, I-CORE and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; RCN, Norway; MNiSW and NCN, Poland; FCT, Portugal; MNE/IFA, Romania; MES of Russia and NRC KI, Russian Federation; JINR; MESTD, Serbia; MSSR, Slovakia; ARRS and MIZŠ, Slovenia; DST/NRF, South Africa; MINECO, Spain; SRC and Wallenberg Foundation, Sweden; SERI, SNSF and Cantons of Bern and Geneva, Switzerland; MOST, Taiwan; TAEK, Turkey; STFC, United Kingdom; DOE and NSF, United States of America. In addition, individual groups and members have received support from BCKDF, the Canada Council, CANARIE, CRC, Compute Canada, FQRNT, and the Ontario Innovation Trust, Canada; EPLANET, ERC, ERDF, FP7, Horizon 2020 and Marie Skłodowska-Curie Actions, European Union; Investissements dAvenir Labex and Idex, ANR, Région Auvergne and Fondation Partager le Savoir, France; DFG and AvH Foundation, Germany; Herakleitos, Thales and Aristeia programmes co-financed by EU-ESF and the Greek NSRF; BSF, GIF and Minerva, Israel; BRF, Norway; CERCA Programme Generalitat de Catalunya, Generalitat Valenciana, Spain; the Royal Society and Leverhulme Trust, United Kingdom. The crucial computing support from all WLCG partners is acknowledged gratefully, in particular from CERN, the ATLAS Tier-1 facilities at TRIUMF (Canada), NDGF (Denmark, Norway, Sweden), CC-IN2P3 (France), KIT/GridKA (Germany), INFN-CNAF (Italy), NL-T1 (Netherlands), PIC (Spain), ASGC (Taiwan), RAL (UK) and BNL (USA), the Tier-2 facilities worldwide and large non-WLCG resource providers. Major contributors of computing resources are listed in ref. 51.

Author information

Affiliations

  1. Department of Physics, University of Adelaide, Adelaide, Australia

    • P. Jackson,
    • L. Lee,
    • A. Petridis &
    • M. J. White
  2. Physics Department, SUNY Albany, Albany, New York, USA

    • J. Bouffard,
    • A. Fischer,
    • S. Guindon,
    • V. Jain &
    • S. P. Swift
  3. Department of Physics, University of Alberta, Edmonton, Alberta, Canada

    • J. Dassoulas,
    • N. Dehghanian,
    • D. M. Gingrich,
    • S. Jabbar,
    • R. W. Moore,
    • J. L. Pinfold,
    • X. Sun &
    • H. Wang
  4. Department of Physics, Ankara University, Ankara, Turkey

    • O. Cakir,
    • A. K. Ciftci &
    • H. Duran Yildiz
  5. Istanbul Aydin University, Istanbul, Turkey

    • S. Kuday &
    • I. Turk Cakir
  6. Division of Physics, TOBB University of Economics and Technology, Ankara, Turkey

    • S. Sultansoy
  7. LAPP, CNRS/IN2P3 and Université Savoie Mont Blanc, Annecy-le-Vieux, France

    • N. Berger,
    • A. M. Burger,
    • M. Delmastro,
    • L. Di Ciaccio,
    • S. Elles,
    • K. Grevtsov,
    • T. Guillemin,
    • T. Hrynova,
    • S. Jézéquel,
    • O. Kivernyk,
    • I. Koletsou,
    • R. Lafaye,
    • J. Levêque,
    • N. Lorenzo Martinez,
    • P. Mastrandrea,
    • E. Sauvan,
    • B. H. Smart,
    • S. Todorova-Nova,
    • A. Vallier,
    • I. Wingerter-Seez &
    • E. Yatsenko
  8. High Energy Physics Division, Argonne National Laboratory, Argonne, Illinois, USA

    • R. E. Blair,
    • S. Chekanov,
    • T. LeCompte,
    • J. Love,
    • D. Malon,
    • J. Metcalfe,
    • A. Paramonov,
    • L. E. Price,
    • J. Proudfoot,
    • S. Ryu,
    • R. W. Stanek,
    • P. van Gemmeren,
    • R. Wang,
    • J. S. Webster &
    • J. Zhang
  9. Department of Physics, University of Arizona, Tucson, Arizona, USA

    • E. Cheu,
    • K. A. Johns,
    • S. Jones,
    • W. Lampl,
    • X. Lei,
    • R. Leone,
    • P. Loch,
    • R. Nayyar,
    • J. P. Rutherfoord,
    • M. A. Shupe,
    • E. W. Varnes &
    • V. Veeraraghavan
  10. Department of Physics, The University of Texas at Arlington, Arlington, Texas, USA

    • J. Abdallah,
    • A. Brandt,
    • D. Bullock,
    • S. Darmora,
    • K. De,
    • A. Farbin,
    • L. Feremenga,
    • J. Griffiths,
    • H. K. Hadavand,
    • L. Heelan,
    • H. Y. Kim,
    • N. Ozturk,
    • A. R. Stradling,
    • G. Usai,
    • A. Vartapetian,
    • A. White &
    • J. Yu
  11. Physics Department, National and Kapodistrian University of Athens, Athens, Greece

    • S. Angelidakis,
    • S. Chouridou,
    • D. Fassouliotis,
    • N. Giokaris,
    • I. Gkialas,
    • P. Ioannou,
    • C. Kourkoumelis,
    • K. Papageorgiou &
    • N. Tsirintanis
  12. Physics Department, National Technical University of Athens, Zografou, Greece

    • T. Alexopoulos,
    • N. Benekos,
    • M. Dris,
    • E. N. Gazis,
    • K. Karakostas,
    • N. Karastathis,
    • E. Karentzos,
    • A. Koulouris,
    • S. Maltezos,
    • P. Moschovakos,
    • E. St. Panagiotopoulou,
    • I. Panagoulias,
    • Th. D. Papadopoulou,
    • G. Tsipolitis,
    • S. Vlachos &
    • G. Zacharis
  13. Department of Physics, The University of Texas at Austin, Austin, Texas, USA

    • T. Andeen,
    • Y. Ilchenko,
    • R. Narayan,
    • P. U. E. Onyisi &
    • A. F. Webb
  14. Institute of Physics, Azerbaijan Academy of Sciences, Baku, Azerbaijan

    • O. Abdinov &
    • F. Khalil-zada
  15. Institut de Física dAltes Energies (IFAE), The Barcelona Institute of Science and Technology, Barcelona, Spain

    • N. Anjos,
    • M. Bosman,
    • M. P. Casado,
    • M. Casolino,
    • E. Cavallaro,
    • M. Cavalli-Sforza,
    • S. Fernandez Perez,
    • C. Fischer,
    • S. Fracchia,
    • D. Gerbaudo,
    • J. Glatzer,
    • S. Grinstein,
    • A. Juste Rozas,
    • I. Korolkov,
    • J. C. Lange,
    • I. Lopez Paz,
    • M. Martinez,
    • L. M. Mir,
    • A. Pacheco Pages,
    • C. Padilla Aranda,
    • I. Riu,
    • C. Rizzi,
    • A. Rodriguez Perez,
    • V. Sorin,
    • S. Terzo,
    • M. F. Tripiana,
    • S. Tsiskaridze,
    • L. Valéry &
    • R. Zaidan
  16. Institute of Physics, University of Belgrade, Belgrade, Serbia

    • T. Agatonovic-Jovin,
    • A. Dimitrievska,
    • J. Krstic,
    • Dj. Sijacki,
    • Lj. Simic,
    • N. Vranjes,
    • M. Vranjes Milosavljevic &
    • L. Živković
  17. Department for Physics and Technology, University of Bergen, Bergen, Norway

    • T. Buanes,
    • O. Dale,
    • G. Eigen,
    • W. Liebig,
    • A. Lipniacka,
    • S. Maeland,
    • B. Martin dit Latour,
    • B. Stugu,
    • Z. Yang &
    • J. Zalieckas
  18. Physics Division, Lawrence Berkeley National Laboratory and University of California, Berkeley, California, USA

    • B. T. Amadio,
    • B. Axen,
    • R. M. Barnett,
    • J. Beringer,
    • J. Brosamer,
    • P. Calafiura,
    • F. Cerutti,
    • A. Ciocio,
    • R. N. Clarke,
    • M. Cooke,
    • E. M. Duffield,
    • K. Einsweiler,
    • S. Farrell,
    • A. Gabrielli,
    • M. Garcia-Sciveres,
    • M. Gilchriese,
    • C. Haber,
    • T. Heim,
    • I. Hinchliffe,
    • T. R. Holmes,
    • L. Jeanty,
    • W. Lavrijsen,
    • C. Leggett,
    • Z. Marshall,
    • B. P. Nachman,
    • C. C. Ohm,
    • S. Pagan Griso,
    • K. Potamianos,
    • A. Pranko,
    • M. Shapiro,
    • M. J. Tibbetts,
    • M. Trottier-McDonald,
    • V. Tsulaia,
    • S. Viel,
    • H. Wang,
    • H. Yang,
    • W.-M. Yao &
    • D. R. Yu
  19. Department of Physics, Humboldt University, Berlin, Germany

    • D. Biedermann,
    • J. Dietrich,
    • S. Grancagnolo,
    • G. H. Herbert,
    • I. Hristova,
    • O. M. Kind,
    • H. Lacker,
    • T. Lohse,
    • S. Mergelmeyer,
    • L. Rehnisch,
    • H. Schulz,
    • D. Sperlich,
    • S. Stamm &
    • M. zur Nedden
  20. Albert Einstein Center for Fundamental Physics and Laboratory for High Energy Physics, University of Bern, Bern, Switzerland

    • H. P. Beck,
    • A. Cervelli,
    • A. Ereditato,
    • S. Haug,
    • F. Meloni,
    • A. Miucci,
    • G. A. Mullier,
    • M. Rimoldi,
    • M. E. Stramaglia &
    • M. S. Weber
  21. School of Physics and Astronomy, University of Birmingham, Birmingham, UK

    • P. P. Allport,
    • N. Andari,
    • M. J. Baca,
    • J. Bracinik,
    • D. L. Briglin,
    • J. H. Broughton,
    • D. Casadei,
    • D. G. Charlton,
    • A. C. Daniells,
    • A. G. Foster,
    • L. Gonella,
    • C. M. Hawkes,
    • S. J. Head,
    • S. J. Hillier,
    • M. Levy,
    • R. D. Mudd,
    • P. R. Newman,
    • K. Nikolopoulos,
    • R. E. Owen,
    • E. Reynolds,
    • M. Slater,
    • J. P. Thomas,
    • P. D. Thompson,
    • P. M. Watkins,
    • A. T. Watson,
    • M. F. Watson,
    • J. A. Wilson &
    • S. D. Worm
  22. Department of Physics, Bogazici University, Istanbul, Turkey

    • M. Arik,
    • E. Celebi,
    • S. Istin &
    • V. E. Ozcan
  23. Department of Physics Engineering, Gaziantep University, Gaziantep, Turkey

    • A. Beddall &
    • A. Bingul
  24. Istanbul Bilgi University, Faculty of Engineering and Natural Sciences, Istanbul, Turkey

    • S. A. Cetin
  25. Bahcesehir University, Faculty of Engineering and Natural Sciences, Istanbul, Turkey

    • A. J. Beddall
  26. Centro de Investigaciones, Universidad Antonio Narino, Bogota, Colombia

    • M. Losada,
    • D. Moreno,
    • G. Navarro &
    • C. Sandoval
  27. INFN Sezione di Bologna, Bologna, Italy

    • G. L. Alberghi,
    • L. Bellagamba,
    • S. Biondi,
    • D. Boscherini,
    • A. Bruni,
    • G. Bruni,
    • M. Bruschi,
    • C. Ciocca,
    • G. Damen,
    • S. De Castro,
    • F. Fabbri,
    • L. Fabbri,
    • M. Franchini,
    • A. Gabrielli,
    • B. Giacobbe,
    • F. M. Giorgi,
    • F. Lasagni Manghi,
    • A. Mengarelli,
    • M. Negrini,
    • A. Polini,
    • L. Rinaldi,
    • M. Romano,
    • C. Sbarra,
    • A. Sbrizzi,
    • N. Semprini-Cesari,
    • A. Sidoti,
    • M. Sioli,
    • R. Spighi,
    • S. A. Tupputi,
    • G. Ucchielli,
    • S. Valentinetti,
    • M. Villa,
    • C. Vittori &
    • A. Zoccoli
  28. Dipartimento di Fisica e Astronomia, Università di Bologna, Bologna, Italy

    • G. L. Alberghi,
    • S. Biondi,
    • C. Ciocca,
    • G. Damen,
    • S. De Castro,
    • F. Fabbri,
    • L. Fabbri,
    • M. Franchini,
    • A. Gabrielli,
    • F. Lasagni Manghi,
    • A. Mengarelli,
    • M. Romano,
    • A. Sbrizzi,
    • N. Semprini-Cesari,
    • A. Sidoti,
    • M. Sioli,
    • S. A. Tupputi,
    • G. Ucchielli,
    • S. Valentinetti,
    • M. Villa,
    • C. Vittori &
    • A. Zoccoli
  29. Physikalisches Institut, University of Bonn, Bonn, Germany

    • O. Arslan,
    • P. Bechtle,
    • F. U. Bernlochner,
    • I. Brock,
    • N. Bruscino,
    • J. Caudron,
    • I. A. Cioara,
    • M. Cristinziani,
    • W. Davey,
    • K. Desch,
    • J. Dingfelder,
    • G. Gaycken,
    • M. Ghneimat,
    • C. Grefe,
    • S. Hageböck,
    • M. C. Hansen,
    • D. Hohn,
    • F. Huegging,
    • J. Janssen,
    • T. Klingl,
    • V. V. Kostyukhin,
    • J. Kroseberg,
    • H. Krüger,
    • K. Lantzsch,
    • T. Lenz,
    • J. Liebal,
    • R. Moles-Valls,
    • T. Obermann,
    • D. Pohl,
    • O. Ricken,
    • B. Sarrazin,
    • S. Schaepe,
    • L. K. Schildgen,
    • E. Schopf,
    • M. J. Schultens,
    • T. Schwindt,
    • A. Sciandra,
    • P. Seema,
    • J. A. Stillings,
    • E. von Toerne,
    • P. Wagner,
    • N. Wermes,
    • L. A. M. Wiik-Fuchs,
    • B. T. Winter,
    • K. H. Yau Wong,
    • S. P. Y. Yuen &
    • R. Zhang
  30. Department of Physics, Boston University, Boston, Massachusetts, USA

    • S. P. Ahlen,
    • K. M. Black,
    • J. M. Butler,
    • L. DellAsta,
    • M. Kruskal,
    • B. A. Long,
    • J. T. Shank,
    • Z. Yan,
    • E. Yigitbasi &
    • S. Youssef
  31. Department of Physics, Brandeis University, Waltham, Massachusetts, USA

    • C. Amelung,
    • G. Amundsen,
    • G. Barone,
    • J. R. Bensinger,
    • C. Blocker,
    • S. Dhaliwal,
    • M. Goblirsch-Kolb,
    • H. Herde,
    • K. M. Loew,
    • G. Sciolla &
    • A. Venturini
  32. Universidade Federal do Rio De Janeiro COPPE/EE/IF, Rio de Janeiro, Brazil

    • Y. Amaral Coutinho,
    • V. Araujo Ferraz,
    • M. Begalli,
    • L. P. Caloba,
    • R. Goncalves Gama,
    • C. Maidantchik,
    • F. Marroquim,
    • A. A. Nepomuceno &
    • J. M. Seixas
  33. Electrical Circuits Department, Federal University of Juiz de Fora (UFJF), Juiz de Fora, Brazil

    • A. S. Cerqueira,
    • L. Manhaes de Andrade Filho &
    • B. S. Peralva
  34. Federal University of Sao Joao del Rei (UFSJ), Sao Joao del Rei, Brazil

    • M. A. B. do Vale
  35. Instituto de Fisica, Universidade de Sao Paulo, Sao Paulo, Brazil

    • M. Donadelli,
    • J. L. La Rosa Navarro &
    • M. A. L. Leite
  36. Physics Department, Brookhaven National Laboratory, Upton, New York, USA

    • K. Assamagan,
    • M. Begel,
    • W. Buttinger,
    • H. Chen,
    • V. Chernyatin,
    • R. Debbe,
    • J. Elmsheuser,
    • M. Ernst,
    • H. A. Gordon,
    • G. Iakovidis,
    • A. Klimentov,
    • V. Kouskoura,
    • A. Kravchenko,
    • E. Lançon,
    • F. Lanni,
    • C. A. Lee,
    • H. Liu,
    • D. Lynn,
    • H. Ma,
    • T. Maeno,
    • A. Milic,
    • E. Mountricha,
    • P. Nilsson,
    • M. A. Nomura,
    • D. Oliveira Damazio,
    • F. Paige,
    • S. Panitkin,
    • D. V. Perepelitsa,
    • M.-A. Pleier,
    • V. Polychronakos,
    • S. Protopopescu,
    • V. Radeka,
    • S. Rajagopalan,
    • G. Redlinger,
    • S. Snyder,
    • P. Steinberg,
    • S. A. Stucci,
    • H. Takai,
    • A. Tricoli,
    • A. Undrus,
    • T. Wenaus,
    • L. Xu &
    • S. Ye
  37. Transilvania University of Brasov, Brasov, Romania

    • T. T. Tulbure
  38. Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest, Romania

    • C. Alexa,
    • I. Caprini,
    • M. Caprini,
    • A. Chitan,
    • M. Ciubancan,
    • S. Constantinescu,
    • P. Dita,
    • S. Dita,
    • M. Dobre,
    • A. E. Dumitriu,
    • A. Jinaru,
    • V. S. Martoiu,
    • J. Maurer,
    • A. Olariu,
    • D. Pantea,
    • M. Rotaru,
    • G. Stoicea,
    • A. Tudorache &
    • V. Tudorache
  39. Department of Physics, Alexandru Ioan Cuza University of Iasi, Iasi, Romania

    • C. Agheorghiesei
  40. National Institute for Research and Development of Isotopic and Molecular Technologies, Physics Department, Cluj Napoca, Romania

    • G. A. Popeneciu
  41. University Politehnica Bucharest, Bucharest, Romania

  42. West University in Timisoara, Timisoara, Romania

    • P. M. Gravila
  43. Departamento de Física, Universidad de Buenos Aires, Buenos Aires, Argentina

    • J. D. Bossio Sola,
    • G. Marceca,
    • G. Otero y Garzon,
    • R. Piegaia &
    • S. Sacerdoti
  44. Cavendish Laboratory, University of Cambridge, Cambridge, UK

    • M. Arratia,
    • N. Barlow,
    • J. R. Batley,
    • F. M. Brochu,
    • B. H. Brunt,
    • J. D. Chapman,
    • G. Cottin,
    • J. C. Hill,
    • S. Kaneti,
    • C. G. Lester,
    • C. Malone,
    • M. A. Parker,
    • C. J. Potter,
    • D. Robinson,
    • J. H. N. Rosten,
    • C. P. Ward &
    • I. Yusuff
  45. Department of Physics, Carleton University, Ottawa, Ontario, Canada

    • A. Bellerive,
    • G. Cree,
    • D. Di Valentino,
    • D. Gillberg,
    • T. Koffas,
    • I. Nomidis,
    • F. G. Oakham,
    • A. Ruiz-Martinez,
    • M. G. Vincter &
    • S. A. Weber
  46. CERN, Geneva, Switzerland

    • M. Aleksa,
    • B. Alvarez Gonzalez,
    • S. Amoroso,
    • F. Anghinolfi,
    • L. Aperio Bella,
    • O. Arnaez,
    • G. Avolio,
    • M. Backhaus,
    • L. Barak,
    • M.-S. Barisits,
    • T. A. Beermann,
    • O. Beltramello,
    • M. Bianco,
    • J. Bortfeldt,
    • J. Boyd,
    • H. Burckhart,
    • P. Butti,
    • S. Camarda,
    • S. Campana,
    • M. D. M. Capeans Garrido,
    • T. Carli,
    • G. D. Carrillo-Montoya,
    • A. Catinaccio,
    • A. Cattai,
    • M. A. Chelstowska,
    • A. S. Chisholm,
    • D. Chromek-Burckhart,
    • G. Conti,
    • A. Cortes-Gonzalez,
    • P. Czodrowski,
    • A. DellAcqua,
    • P. O. Deviveiros,
    • A. Di Girolamo,
    • B. Di Girolamo,
    • R. Di Nardo,
    • F. Dittus,
    • D. Dobos,
    • A. Dudarev,
    • M. Dührssen,
    • T. Eifert,
    • N. Ellis,
    • M. Elsing,
    • J. Faltova,
    • P. Farthouat,
    • P. Fassnacht,
    • E. J. Feng,
    • D. Francis,
    • S. M. Fressard-Batraneanu,
    • D. Froidevaux,
    • S. Gadatsch,
    • L. Goossens,
    • B. Gorini,
    • H. M. Gray,
    • C. Gumpert,
    • R. J. Hawkings,
    • L. Helary,
    • C. Helsens,
    • A. M. Henriques Correia,
    • L. Hervas,
    • A. Hoecker,
    • M. Huhtinen,
    • P. Iengo,
    • S. Jakobsen,
    • T. Klioutchnikova,
    • A. Krasznahorkay,
    • S. Kuehn,
    • M. Lassnig,
    • G. Lehmann Miotto,
    • B. Lenzi,
    • S. Malyukov,
    • A. Manousos,
    • L. Mapelli,
    • J. Montejo Berlingen,
    • S. Morgenstern,
    • G. Mornacchi,
    • A. M. Nairz,
    • M. Nessi,
    • M. Nordberg,
    • S. Palestini,
    • P. Pani,
    • T. Pauly,
    • H. Pernegger,
    • B. A. Petersen,
    • R. Polifka,
    • K. Pommès,
    • A. Poppleton,
    • G. Poulard,
    • J. Poveda,
    • M. E. Pozo Astigarraga,
    • M. Raymond,
    • C. Rembser,
    • E. Ritsch,
    • S. Roe,
    • N. Ruthmann,
    • A. Salzburger,
    • D. Schaefer,
    • S. Schlenker,
    • K. Schmieden,
    • F. Sforza,
    • C. A. Solans Sanchez,
    • G. Spigo,
    • S. Stärz,
    • H. J. Stelzer,
    • H. Ten Kate,
    • G. Unal,
    • W. Vandelli,
    • R. Voss,
    • R. Vuillermet,
    • P. S. Wells,
    • T. Wengler,
    • S. Wenig,
    • P. Werner,
    • H. G. Wilkens,
    • J. Wotschack,
    • C. J. S. Young &
    • L. Zwalinski
  47. Enrico Fermi Institute, University of Chicago, Chicago, Illinois, USA

    • J. Alison,
    • K. J. Anderson,
    • P. Bryant,
    • R. Camacho Toro,
    • Y. Cheng,
    • G. Facini,
    • R. W. Gardner,
    • Y. K. Kim,
    • K. Krizka,
    • F. S. Merritt,
    • D. W. Miller,
    • M. J. Oreglia,
    • J. E. Pilcher,
    • J. Saxon,
    • M. J. Shochet,
    • G. H. Stark,
    • M. Swiatlowski,
    • I. Vukotic,
    • M. Wu &
    • R. Zou
  48. Departamento de Física, Pontificia Universidad Católica de Chile, Santiago, Chile

    • S. Blunier,
    • M. A. Diaz &
    • J. P. Ochoa-Ricoux
  49. Departamento de Física, Universidad Técnica Federico Santa María, Valparaíso, Chile

    • W. K. Brooks,
    • E. Carquin,
    • S. Kuleshov,
    • J. A. Lopez,
    • R. Pezoa,
    • F. Prokoshin,
    • J. E. Salazar Loyola,
    • S. Tapia Araya,
    • G. A. Vasquez,
    • N. Viaux Maira &
    • R. White
  50. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China

    • J. Barreiro Guimarães da Costa,
    • H. J. Cheng,
    • Y. Fang,
    • S. Han,
    • Y. Huang,
    • S. Jin,
    • M. G. Kurth,
    • Q. Li,
    • Z. Liang,
    • J. Llorente Merino,
    • X. Lou,
    • J. D. Mansour,
    • Q. Ouyang,
    • C. Peng,
    • H. Ren,
    • L. Y. Shan,
    • D. Xu,
    • Y. Zhang,
    • M. Zhou,
    • H. Zhu &
    • X. Zhuang
  51. Department of Physics, Nanjing University, Jiangsu, China

    • S. Chen,
    • C. Wang &
    • H. Zhang
  52. Physics Department, Tsinghua University, Beijing 100084, China

    • A. Buzatu,
    • X. Chen,
    • N. Nishu,
    • L. Xia &
    • N. Zhou
  53. Department of Modern Physics, University of Science and Technology of China, Anhui, China

    • Z. Barnovska-Blenessy,
    • J. Gao,
    • C. Geng,
    • Y. Guo,
    • L. Han,
    • Q. Hu,
    • Y. Jiang,
    • B. Li,
    • C. Li,
    • J. B. Liu,
    • M. Liu,
    • Y. L. Liu,
    • Y. Liu,
    • H. Peng,
    • H. Y. Song,
    • W. Wang,
    • G. Zhang,
    • L. Zhang,
    • R. Zhang,
    • Z. Zhao &
    • Y. Zhu
  54. School of Physics, Shandong University, Shandong, China

    • Y. Du,
    • C. Feng,
    • J. Liu,
    • L. L. Ma,
    • Y. Ma,
    • C. Wang,
    • X. Zhang,
    • Y. Zhao &
    • C. G. Zhu
  55. Department of Physics and Astronomy, Key Laboratory for Particle Physics, Astrophysics and Cosmology, Ministry of Education, Shanghai Key Laboratory for Particle Physics and Cosmology, Shanghai Jiao Tong University, Shanghai (also at PKU-CHEP), China

    • S. L. Barnes,
    • M. Cano Bret,
    • J. Guo,
    • S. Hu,
    • N. Kondrashova,
    • L. Li,
    • X. Li,
    • Z. Wang &
    • H. Yang
  56. Université Clermont Auvergne, CNRS/IN2P3, LPC, Clermont-Ferrand, France

    • D. Boumediene,
    • E. Busato,
    • D. Calvet,
    • S. Calvet,
    • A. R. Chomont,
    • J. Donini,
    • S. Ganguly,
    • Ph. Gris,
    • R. Madar,
    • M. Marjanovic,
    • D. Pallin,
    • S. M. Romano Saez,
    • C. Santoni &
    • F. Vazeille
  57. Nevis Laboratory, Columbia University, Irvington, New York, USA

    • S. P. Alkire,
    • A. Angerami,
    • G. Brooijmans,
    • R. M. Carbone,
    • M. R. Clark,
    • B. Cole,
    • L. B. Havener,
    • E. W. Hughes,
    • K. Iordanidou,
    • M. H. Klein,
    • S. Mohapatra,
    • I. Ochoa,
    • J. A. Parsons,
    • M. N. K. Smith,
    • R. W. Smith,
    • P. M. Tuts &
    • T. Wang
  58. Niels Bohr Institute, University of Copenhagen, Kobenhavn, Denmark

    • A. Alonso,
    • M. Bajic,
    • G. J. Besjes,
    • M. Dam,
    • G. Galster,
    • J. B. Hansen,
    • J. D. Hansen,
    • P. H. Hansen,
    • J. Monk,
    • L. E. Pedersen,
    • T. C. Petersen,
    • S. H. Stark,
    • C. Wiglesworth &
    • S. Xella
  59. INFN Gruppo Collegato di Cosenza, Laboratori Nazionali di Frascati, Rende, Italy

    • V. M. Cairo,
    • G. Callea,
    • M. Capua,
    • G. Crosetti,
    • M. Del Gaudio,
    • L. La Rotonda,
    • A. Mastroberardino,
    • S. Palazzo,
    • A. Policicchio,
    • D. Salvatore,
    • V. Scarfone,
    • M. Schioppa &
    • E. Tassi
  60. Dipartimento di Fisica, Università della Calabria, Rende, Italy

    • V. M. Cairo,
    • G. Callea,
    • M. Capua,
    • G. Crosetti,
    • M. Del Gaudio,
    • L. La Rotonda,
    • A. Mastroberardino,
    • S. Palazzo,
    • A. Policicchio,
    • D. Salvatore,
    • V. Scarfone,
    • M. Schioppa &
    • E. Tassi
  61. AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, Poland

    • L. Adamczyk,
    • T. Bold,
    • W. Dabrowski,
    • G. P. Gach,
    • I. Grabowska-Bold,
    • M. P. Guzik,
    • P. A. Janus,
    • D. Kisielewska,
    • S. Koperny,
    • T. Z. Kowalski,
    • J. A. Kremer,
    • B. Mindur,
    • M. Przybycien &
    • A. Zemla
  62. Marian Smoluchowski Institute of Physics, Jagiellonian University, Krakow, Poland

    • M. Palka &
    • E. Richter-Was
  63. Institute of Nuclear Physics Polish Academy of Sciences, Krakow, Poland

    • E. Banas,
    • P. A. Bruckman de Renstrom,
    • K. Burka,
    • J. J. Chwastowski,
    • D. Derendarz,
    • J. Godlewski,
    • A. Kaczmarska,
    • J. Knapik,
    • K. Korcyl,
    • A. B. Kowalewska,
    • Pa. Malecki,
    • A. Olszewski,
    • J. Olszowska,
    • E. Stanecka,
    • R. Staszewski,
    • M. Trzebinski,
    • A. Trzupek,
    • M. W. Wolter,
    • B. K. Wosiek,
    • K. W. Wozniak &
    • B. Zabinski
  64. Physics Department, Southern Methodist University, Dallas, Texas, USA

    • R. Gupta,
    • J. W. Hetherly,
    • S. Kama,
    • R. Kehoe,
    • S. J. Sekula,
    • R. Stroynowski,
    • T. Varol,
    • J. Ye,
    • X. Zhao &
    • L. Zhou
  65. Physics Department, University of Texas at Dallas, Richardson, Texas, USA

    • J. M. Izen,
    • M. Leyton,
    • B. Meirose &
    • K. Reeves
  66. DESY, Hamburg and Zeuthen, Germany

    • N. Asbah,
    • J. K. Behr,
    • C. Bertsche,
    • M. Bessner,
    • I. Bloch,
    • K. Brendlinger,
    • D. Britzger,
    • T. Daubney,
    • C. David,
    • C. Deterre,
    • S. Díez Cornell,
    • B. Dutta,
    • M. Dyndal,
    • C. Eckardt,
    • J. Ferrando,
    • M. Filipuzzi,
    • N. Flaschel,
    • A. Gascon Bravo,
    • K. Gasnikova,
    • P. C. F. Glaysher,
    • A. Glazov,
    • I. M. Gregor,
    • M. Haleem,
    • P. G. Hamnett,
    • S. Heim,
    • B. Heinemann,
    • K. H. Hiller,
    • J. Howarth,
    • J. Katzy,
    • J. S. Keller,
    • T. Kuhl,
    • J. Lacey,
    • W. A. Leight,
    • E. M. Lobodzinska,
    • K. Lohwasser,
    • A. Madsen,
    • K. Mönig,
    • R. F. Naranjo Garcia,
    • T. Naumann,
    • A. A. ORourke,
    • K. A. Parker,
    • R. Peschke,
    • K. Peters,
    • H. Pirumov,
    • A. Poley,
    • M. Queitsch-Maitland,
    • D. M. Rauch,
    • J. E. M. Robinson,
    • M. Saimpert,
    • C. O. Sander,
    • R. Schaefer,
    • S. Schmitt,
    • D. South,
    • M. M. Stanitzki,
    • N. A. Styles,
    • K. Tackmann,
    • A. Trofymov,
    • A. Vishwakarma,
    • J. Wang &
    • N. Zakharchuk
  67. Lehrstuhl für Experimentelle Physik IV, Technische Universität Dortmund, Dortmund, Germany

    • I. Burmeister,
    • D. Cinca,
    • K. Dette,
    • J. Erdmann,
    • H. Esch,
    • C. Gössling,
    • M. Homann,
    • R. Klingenberg &
    • K. Kroeninger
  68. Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany

    • C. Bittrich,
    • D. Duschinger,
    • L. Hauswald,
    • D. Kirchmeier,
    • M. Kobel,
    • W. F. Mader,
    • O. Novgorodova,
    • F. Siegert,
    • F. Socher,
    • A. Straessner &
    • S. Wahrmund
  69. Department of Physics, Duke University, Durham, North Carolina, USA

    • A. T. H. Arce,
    • D. P. Benjamin,
    • D. M. Bjergaard,
    • A. Bocci,
    • A. T. Goshaw,
    • E. Kajomovitz,
    • A. Kotwal,
    • M. C. Kruse,
    • L. Li,
    • S. Li &
    • S. H. Oh
  70. SUPA - School of Physics and Astronomy, University of Edinburgh, Edinburgh, UK

    • T. M. Bristow,
    • P. J. Clark,
    • F. A. Dias,
    • F. M. Garay Walls,
    • R. D. Harrington,
    • A. Hasib,
    • X. Hoad,
    • C. Leonidopoulos,
    • V. J. Martin,
    • L. Mijović,
    • C. Mills,
    • S. A. Olivares Pino,
    • A. Washbrook &
    • B. M. Wynne
  71. INFN Laboratori Nazionali di Frascati, Frascati, Italy

    • M. Antonelli,
    • M. Beretta,
    • H. Bilokon,
    • V. Chiarella,
    • M. Curatolo,
    • B. Esposito,
    • C. Gatti,
    • P. Laurelli,
    • G. Maccarrone,
    • G. Mancini,
    • A. Sansoni,
    • M. Testa &
    • E. Vilucchi
  72. Fakultät für Mathematik und Physik, Albert-Ludwigs-Universität, Freiburg, Germany

    • H. Arnold,
    • C. Betancourt,
    • M. Boehler,
    • F. Buehrer,
    • C. D. Burgard,
    • D. Büscher,
    • F. Cardillo,
    • E. Coniavitis,
    • V. Consorti,
    • N. P. Dang,
    • A. Di Simone,
    • G. Gonella,
    • K. K. Heidegger,
    • G. Herten,
    • M. Hirose,
    • K. Jakobs,
    • T. Javůrek,
    • M. Javurkova,
    • P. Jenni,
    • T. Klapdor-Kleingrothaus,
    • K. Köneke,
    • A. K. Kopp,
    • U. Landgraf,
    • C. Luedtke,
    • T. J. Megy,
    • P. Mogg,
    • M. Nagel,
    • U. Parzefall,
    • M. Ronzani,
    • K. Rosbach,
    • F. Rühr,
    • Z. Rurikova,
    • D. Sammel,
    • C. Schillo,
    • U. Schnoor,
    • M. Schumacher,
    • P. Sommer,
    • D. Ta,
    • P. Tornambe,
    • V. Tsiskaridze,
    • C. Weiser,
    • L. Zhang &
    • S. Zimmermann
  73. Departement de Physique Nucleaire et Corpusculaire, Université de Genève, Geneva, Switzerland

    • L. S. Ancu,
    • M. Benoit,
    • J. Bilbao De Mendizabal,
    • N. Calace,
    • A. Chatterjee,
    • A. Clark,
    • A. Coccaro,
    • C. M. Delitzsch,
    • D. della Volpe,
    • D. Ferrere,
    • T. Golling,
    • S. Gonzalez-Sevilla,
    • J. Gramling,
    • G. Iacobucci,
    • A. Katre,
    • T. J. Khoo,
    • M. C. Lanfermann,
    • A. E. Lionti,
    • L. March,
    • P. Mermod,
    • O. Nackenhorst,
    • L. Paolozzi,
    • B. Ristić,
    • S. Schramm,
    • A. Sfyrla &
    • X. Wu
  74. INFN Sezione di Genova, Genova, Italy

    • D. Barberis,
    • G. Darbo,
    • A. Favareto,
    • G. Gagliardi,
    • A. Gaudiello,
    • C. Gemme,
    • E. Guido,
    • A. Lapertosa,
    • S. Miglioranzi,
    • P. Morettini,
    • H. Oide,
    • B. Osculati,
    • F. Parodi,
    • S. Passaggio,
    • L. P. Rossi,
    • M. Sannino,
    • C. Schiavi &
    • C. Varni
  75. Dipartimento di Fisica, Università di Genova, Genova, Italy

    • D. Barberis,
    • A. Favareto,
    • G. Gagliardi,
    • A. Gaudiello,
    • E. Guido,
    • A. Lapertosa,
    • S. Miglioranzi,
    • H. Oide,
    • B. Osculati,
    • F. Parodi,
    • M. Sannino,
    • C. Schiavi &
    • C. Varni
  76. E. Andronikashvili Institute of Physics, Iv. Javakhishvili Tbilisi State University, Tbilisi, Georgia

    • J. Jejelava &
    • E. G. Tskhadadze
  77. High Energy Physics Institute, Tbilisi State University, Tbilisi, Georgia

    • T. Djobava,
    • A. Durglishvili,
    • J. Khubua &
    • M. Mosidze
  78. II Physikalisches Institut, Justus-Liebig-Universität Giessen, Giessen, Germany

    • M. Düren,
    • C. Heinz,
    • K. Kreutzfeldt &
    • H. Stenzel
  79. SUPA - School of Physics and Astronomy, University of Glasgow, Glasgow, UK

    • A. A. Alshehri,
    • R. L. Bates,
    • A. Blue,
    • S. K. Boutle,
    • W. D. Breaden Madden,
    • D. Britton,
    • A. G. Buckley,
    • P. Bussey,
    • C. M. Buttar,
    • S. J. Crawley,
    • S. DAuria,
    • A. T. Doyle,
    • A. K. Duncan,
    • U. Gul,
    • P. Mullen,
    • V. OShea,
    • M. Owen,
    • C. S. Pollard,
    • G. Qin,
    • D. Quilty,
    • T. Ravenscroft,
    • A. Robson,
    • R. D. St. Denis,
    • G. A. Stewart &
    • A. S. Thompson
  80. II Physikalisches Institut, Georg-August-Universität, Göttingen, Germany

    • M. Bindi,
    • T. Bisanz,
    • G. Brandt,
    • A. De Maria,
    • E. Drechsler,
    • L. Graber,
    • J. Grosse-Knetter,
    • M. Janus,
    • M. J. Kareem,
    • G. Kawamura,
    • S. Lai,
    • B. Lemmer,
    • E. Magradze,
    • M. Mantoani,
    • G. Mchedlidze,
    • M. Moreno Llácer,
    • H. Musheghyan,
    • A. Quadt,
    • J. Rieger,
    • N.-A. Rosien,
    • G. F. Rzehorz,
    • E. Shabalina,
    • J. W. Smith,
    • P. Stolte,
    • J. Veatch &
    • J. Weingarten
  81. Laboratoire de Physique Subatomique et de Cosmologie, Université Grenoble-Alpes, CNRS/IN2P3, Grenoble, France

    • S. Berlendis,
    • C. Camincher,
    • J. Collot,
    • S. Crépé-Renaudin,
    • P. A. Delsart,
    • C. Gabaldon,
    • M. H. Genest,
    • J.-Y. Hostachy,
    • F. Ledroit-Guillon,
    • A. Lleres,
    • A. Lucotte,
    • F. Malek,
    • T. Meideck,
    • E. Petit,
    • J. Stark &
    • B. Trocmé
  82. Laboratory for Particle Physics and Cosmology, Harvard University, Cambridge, Massachusetts, USA

    • S. K. Chan,
    • B. L. Clark,
    • K. F. Di Petrillo,
    • M. Franklin,
    • P. Giromini,
    • J. Huth,
    • V. Ippolito,
    • T. Lazovich,
    • D. Lopez Mateos,
    • M. Morii,
    • C. S. Rogan,
    • J. Roloff,
    • S. Sun,
    • E. Tolley,
    • B. Tong,
    • A. N. Tuna &
    • S. Zambito
  83. Kirchhoff-Institut für Physik, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany

    • V. Andrei,
    • C. Antel,
    • A. E. Baas,
    • O. Brandt,
    • J. I. Djuvsland,
    • M. Dunford,
    • S. Franchino,
    • M. P. Geisler,
    • P. Hanke,
    • J. Jongmanns,
    • E.-E. Kluge,
    • V. S. Lang,
    • K. Meier,
    • H. Meyer Zu Theenhausen,
    • D. I. Narrias Villar,
    • M. Sahinsoy,
    • V. Scharf,
    • H.-C. Schultz-Coulon,
    • T. M. Spieker,
    • R. Stamen,
    • P. Starovoitov,
    • S. Suchek &
    • M. Wessels
  84. Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany

    • C. F. Anders,
    • D. E. Ferreira de Lima,
    • M. Giulini,
    • M. Kolb,
    • M. Lisovyi,
    • S. Schaetzel,
    • A. Schoening &
    • D. Sosa
  85. ZITI Institut für Technische Informatik, Ruprecht-Karls-Universität Heidelberg, Mannheim, Germany

    • M. Kretz &
    • A. Kugel
  86. Faculty of Applied Information Science, Hiroshima Institute of Technology, Hiroshima, Japan

    • Y. Nagasaka
  87. Department of Physics, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China

    • V. Bortolotto,
    • Y. L. Chan,
    • M. C. Chu,
    • L. R. Flores Castillo,
    • H. Lu,
    • A. Salvucci,
    • K. W. Tsang &
    • K. M. Tsui
  88. Department of Physics, The University of Hong Kong, Hong Kong, China

    • V. Bortolotto,
    • C. Y. Lo,
    • N. Orlando,
    • A. Salvucci &
    • Y. Tu
  89. Department of Physics and Institute for Advanced Study, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China

    • V. Bortolotto,
    • T. Y. Ng,
    • K. Prokofiev &
    • A. Salvucci
  90. Department of Physics, National Tsing Hua University, Taiwan, Taiwan

    • P. J. Hsu &
    • Y. J. Lu
  91. Department of Physics, Indiana University, Bloomington, Indiana, USA

    • P. Calfayan,
    • K. Choi,
    • H. Evans,
    • P. Gagnon,
    • C. A. Johnson,
    • R. Kopeliansky,
    • S. Lammers,
    • F. Luehring,
    • H. Ogren,
    • G. Palacino,
    • J. Penwell,
    • B. Weinert &
    • D. Zieminska
  92. Institut für Astro- und Teilchenphysik, Leopold-Franzens-Universität, Innsbruck, Austria

    • J. Guenther,
    • R. Jansky,
    • E. Kneringer &
    • W. Lukas
  93. University of Iowa, Iowa City, Iowa, USA

    • S. Argyropoulos,
    • J. Benitez &
    • U. Mallik
  94. Department of Physics and Astronomy, Iowa State University, Ames, Iowa, USA

    • C. Chen,
    • J. Cochran,
    • F. De Lorenzi,
    • H. Jiang,
    • N. Krumnack,
    • D. Pluth,
    • S. Prell,
    • M. D. Werner &
    • J. Yu
  95. Joint Institute for Nuclear Research, JINR Dubna, Dubna, Russia

    • F. Ahmadov,
    • I. N. Aleksandrov,
    • V. A. Bednyakov,
    • I. R. Boyko,
    • I. A. Budagov,
    • G. A. Chelkov,
    • A. Cheplakov,
    • M. V. Chizhov,
    • D. V. Dedovich,
    • M. Demichev,
    • A. Gongadze,
    • M. I. Gostkin,
    • N. Huseynov,
    • N. Javadov,
    • S. N. Karpov,
    • Z. M. Karpova,
    • E. Khramov,
    • U. Kruchonak,
    • V. Kukhtin,
    • E. Ladygin,
    • V. Lyubushkin,
    • I. A. Minashvili,
    • M. Mineev,
    • V. D. Peshekhonov,
    • E. Plotnikova,
    • I. N. Potrap,
    • N. A. Rusakovich,
    • R. Sadykov,
    • A. Sapronov,
    • M. Shiyakova,
    • A. Soloshenko,
    • S. Turchikhin,
    • V. B. Vinogradov,
    • I. Yeletskikh,
    • A. Zhemchugov &
    • N. I. Zimine
  96. KEK, High Energy Accelerator Research Organization, Tsukuba, Japan

    • M. Aoki,
    • Y. Arai,
    • K. Hanagaki,
    • S. Higashino,
    • T. Honda,
    • Y. Ikegami,
    • M. Ikeno,
    • H. Iwasaki,
    • J. Kanzaki,
    • T. Kondo,
    • T. Kono,
    • Y. Makida,
    • A. Mizukami,
    • R. Nagai,
    • K. Nagano,
    • K. Nakamura,
    • M. Nozaki,
    • S. Odaka,
    • T. Okuyama,
    • O. Sasaki,
    • S. Suzuki,
    • Y. Takubo,
    • S. Tanaka,
    • S. Terada,
    • K. Tokushuku,
    • S. Tsuno,
    • I. Ueda,
    • Y. Unno,
    • J. Usui,
    • A. Yamamoto &
    • Y. Yasu
  97. Graduate School of Science, Kobe University, Kobe, Japan

    • Y. Chen,
    • M. Hasegawa,
    • S. Kido,
    • H. Kurashige,
    • J. Maeda,
    • A. Ochi,
    • S. Shimizu,
    • R. Tanioka,
    • Y. Yamazaki &
    • L. Yuan
  98. Faculty of Science, Kyoto University, Kyoto, Japan

    • S. Akatsuka,
    • T. Kunigo,
    • R. Monden,
    • Y. Noguchi,
    • T. Sumida &
    • T. Tashiro
  99. Kyoto University of Education, Kyoto, Japan

    • R. Takashima
  100. Department of Physics, Kyushu University, Fukuoka, Japan

    • K. Kawagoe,
    • S. Oda,
    • H. Otono,
    • S. Shirabe &
    • J. Tojo
  101. Instituto de Física La Plata, Universidad Nacional de La Plata and CONICET, La Plata, Argentina

    • M. J. Alconada Verzini,
    • F. Alonso,
    • F. A. Arduh,
    • M. T. Dova,
    • J. Hoya,
    • F. Monticelli &
    • H. Wahlberg
  102. Physics Department, Lancaster University, Lancaster, UK

    • A. E. Barton,
    • M. D. Beattie,
    • I. A. Bertram,
    • G. Borissov,
    • E. V. Bouhova-Thacker,
    • W. J. Dearnaley,
    • H. Fox,
    • K. Grimm,
    • R. C. W. Henderson,
    • G. Hughes,
    • R. W. L. Jones,
    • V. Kartvelishvili,
    • R. E. Long,
    • P. A. Love,
    • D. Muenstermann,
    • A. J. Parker,
    • M. B. Skinner,
    • M. Smizanska,
    • J. Walder &
    • A. M. Wharton
  103. INFN Sezione di Lecce, Lecce, Italy

    • M. Aliev,
    • K. Bachas,
    • G. Chiodini,
    • E. Gorini,
    • L. Longo,
    • M. Primavera,
    • M. Reale,
    • S. Spagnolo &
    • A. Ventura
  104. Dipartimento di Matematica e Fisica, Università del Salento, Lecce, Italy

    • M. Aliev,
    • K. Bachas,
    • E. Gorini,
    • L. Longo,
    • M. Reale,
    • S. Spagnolo &
    • A. Ventura
  105. Oliver Lodge Laboratory, University of Liverpool, Liverpool, UK

    • J. K. Anders,
    • S. Burdin,
    • M. DOnofrio,
    • P. Dervan,
    • Y. Gao,
    • C. B. Gwilliam,
    • H. S. Hayward,
    • T. J. Jones,
    • E. F. Kay,
    • B. T. King,
    • M. Klein,
    • U. Klein,
    • J. Kretzschmar,
    • P. Laycock,
    • A. Lehan,
    • S. J. Maxfield,
    • A. Mehta,
    • L. Meng,
    • N. P. Readioff,
    • N. Rompotis &
    • J. H. Vossebeld
  106. Department of Experimental Particle Physics, Jožef Stefan Institute and Department of Physics, University of Ljubljana, Ljubljana, Slovenia

    • V. Cindro,
    • A. Filipčič,
    • A. Gorišek,
    • B. Hiti,
    • L. Kanjir,
    • B. P. Kerševan,
    • G. Kramberger,
    • B. Maček,
    • I. Mandić,
    • M. Mikuž,
    • M. Muškinja,
    • T. Sfiligoj &
    • G. Sokhrannyi
  107. School of Physics and Astronomy, Queen Mary University of London, London, UK

    • L. J. Armitage,
    • A. J. Bevan,
    • U. Blumenschein,
    • M. Bona,
    • J. M. Hays,
    • M. P. J. Landon,
    • D. Lewis,
    • S. L. Lloyd,
    • J. D. Morris,
    • T. Nooney,
    • E. Piccaro,
    • E. Rizvi &
    • R. L. Sandbach
  108. Department of Physics, Royal Holloway University of London, Egham, UK

    • R. E. Ardell,
    • T. Berry,
    • V. Boisvert,
    • T. Brooks,
    • G. Cowan,
    • M. Faucci Giannelli,
    • S. Gadomski,
    • S. George,
    • S. M. Gibson,
    • J. J. Kempster,
    • C. R. Kilby,
    • J. G. Panduro Vazquez,
    • Fr. Pastore,
    • G. Savage,
    • B. C. Sowden,
    • F. Spanò,
    • P. Teixeira-Dias &
    • J. Thomas-Wilsker
  109. Department of Physics and Astronomy, University College London, London, UK

    • A. S. Bell,
    • J. M. Butterworth,
    • M. Campanelli,
    • V. Christodoulou,
    • B. D. Cooper,
    • P. Davison,
    • R. J. Falla,
    • D. Freeborn,
    • K. Gregersen,
    • Z. J. Grout,
    • N. G. Gutierrez Ortiz,
    • C. Gutschow,
    • G. G. Hesketh,
    • S. Jiggins,
    • N. Konstantinidis,
    • A. Korn,
    • H. Kucuk,
    • K. J. C. Leney,
    • A. C. Martyniuk,
    • L. I. McClymont,
    • J. A. Mcfayden,
    • E. Nurse,
    • S. Richter,
    • T. Scanlon,
    • P. Sherwood,
    • B. Simmons,
    • D. R. Wardrope &
    • B. M. Waugh
  110. Louisiana Tech University, Ruston, Louisiana, USA

    • Z. D. Greenwood,
    • G. C. Grossi,
    • D. K. Jana,
    • L. Sawyer &
    • M. Wobisch
  111. Laboratoire de Physique Nucléaire et de Hautes Energies, UPMC and Université Paris-Diderot and CNRS/IN2P3, Paris, France

    • T. Beau,
    • G. Bernardi,
    • M. Bomben,
    • G. Calderini,
    • F. Crescioli,
    • S. De Cecco,
    • A. Demilly,
    • F. Derue,
    • A. Ducourthial,
    • P. Francavilla,
    • D. Lacour,
    • B. Laforge,
    • S. Laplace,
    • O. Le Dortz,
    • G. Lefebvre,
    • A. Lopez Solis,
    • P. M. Luzi,
    • B. Malaescu,
    • G. Marchiori,
    • I. Nikolic-Audit,
    • J. Ocariz,
    • C. E. Pandini,
    • M. Ridel,
    • L. Roos,
    • S. Trincaz-Duvoid &
    • Y. C. Yap
  112. Fysiska Institutionen, Lunds Universitet, Lund, Sweden

    • T. P. A. Åkesson,
    • S. S. Bocchetta,
    • L. Bryngemark,
    • C. Doglioni,
    • V. Hedberg,
    • G. Jarlskog,
    • C. W. Kalderon,
    • E. Lytken,
    • J. U. Mjörnmark,
    • O. Smirnova &
    • O. Viazlo
  113. Departamento de Fisica Teorica C-15, Universidad Autonoma de Madrid, Madrid, Spain

    • F. Barreiro,
    • S. Calvente Lopez,
    • A. Cueto,
    • J. Del Peso,
    • C. Glasman &
    • J. Terron
  114. Institut für Physik, Universität Mainz, Mainz, Germany

    • S. Artz,
    • M. Becker,
    • C. Bertella,
    • W. Blum,
    • V. Büscher,
    • J. Cúth,
    • A. Chr. Dudder,
    • O. C. Endner,
    • E. Ertel,
    • F. Fiedler,
    • E. Fullana Torregrosa,
    • M. Geisen,
    • S. Groh,
    • T. Heck,
    • K. B. Jakobi,
    • A. Kaluza,
    • K. Kleinknecht,
    • T. H. Lin,
    • L. Masetti,
    • V. Pleskot,
    • S. Rave,
    • A. Reiss,
    • J. Schaeffer,
    • U. Schäfer,
    • C. Schmitt,
    • S. Schmitz,
    • M. Schott,
    • N. Schuh,
    • A. Schulte,
    • E. Simioni,
    • M. Simon,
    • A. Sydorenko,
    • S. Tapprogge,
    • P. Urrejola,
    • S. Webb,
    • E. Yildirim,
    • C. Zimmermann &
    • M. Zinser
  115. School of Physics and Astronomy, University of Manchester, Manchester, UK

    • A. Bethani,
    • R. Bielski,
    • I. A. Connelly,
    • B. E. Cox,
    • C. Da Via,
    • N. S. Dann,
    • G. T. Forcolin,
    • A. Forti,
    • J. M. Iturbe Ponce,
    • F. K. Loebinger,
    • S. P. Marsden,
    • J. Masik,
    • S. B. Menary,
    • F. J. Munoz Sanchez,
    • A. Oh,
    • R. Ospanov,
    • J. R. Pater,
    • R. F. Y. Peters,
    • A. D. Pilkington,
    • A. W. J. Pin,
    • D. Price,
    • Y. Qin,
    • J. A. Raine,
    • J. H. Rawling,
    • R. T. Roberts,
    • H. Schweiger,
    • S. M. Shaw,
    • L. Tomlinson,
    • S. Watts,
    • F. Wilk,
    • M. J. Woudstra &
    • T. R. Wyatt
  116. CPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, France

    • G. Aad,
    • M. Alstaty,
    • M. Barbero,
    • A. Calandri,
    • T. P. Calvet,
    • Y. Coadou,
    • K. De Vasconcelos Corga,
    • C. Diaconu,
    • F. Djama,
    • R. El Kosseifi,
    • V. Ellajosyula,
    • L. Feligioni,
    • A. Hadef,
    • G. D. Hallewell,
    • F. Hubaut,
    • S. J. Kahn,
    • E. B. F. G. Knoops,
    • R. Kukla,
    • E. Le Guirriec,
    • K. Liu,
    • D. Madaffari,
    • E. Monnier,
    • S. Muanza,
    • E. Nagy,
    • P. Pralavorio,
    • Y. Rodina,
    • A. Rozanov,
    • M. Talby,
    • T. Theveneaux-Pelzer,
    • R. E. Ticse Torres,
    • S. Tisserant,
    • J. Toth,
    • F. Touchard,
    • L. Vacavant &
    • R. Wolff
  117. Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA

    • M. Bellomo,
    • N. R. Bernard,
    • B. Brau,
    • C. Dallapiccola,
    • E. J. W. Moyse,
    • P. Pais,
    • N. E. Pettersson,
    • A. Picazio &
    • S. Willocq
  118. Department of Physics, McGill University, Montreal, Quebec, Canada

    • A. J. Chuinard,
    • F. Corriveau,
    • R. A. Keyes,
    • B. Lefebvre,
    • R. Mantifel,
    • S. Prince,
    • S. H. Robertson,
    • A. Robichaud-Veronneau,
    • M. Stoebe,
    • B. Vachon,
    • T. Vazquez Schroeder &
    • A. Warburton
  119. School of Physics, University of Melbourne, Victoria, Australia

    • E. L. Barberio,
    • A. J. Brennan,
    • E. Dawe,
    • S. Goldfarb,
    • T. Kubota,
    • B. Le,
    • E. F. McDonald,
    • P. C. McNamara,
    • M. Milesi,
    • F. Nuti,
    • P. Rados,
    • F. Scutti,
    • L. A. Spiller,
    • G. N. Taylor,
    • P. T. E. Taylor,
    • F. C. Ungaro,
    • P. Urquijo,
    • M. Volpi &
    • D. Zanzi
  120. Department of Physics, The University of Michigan, Ann Arbor, Michigan, USA

    • D. Amidei,
    • H. C. Cheng,
    • T. Dai,
    • E. B. Diehl,
    • R. C. Edgar,
    • H. Feng,
    • C. Ferretti,
    • P. Fleischmann,
    • L. Guan,
    • W. Guo,
    • D. Levin,
    • H. Liu,
    • N. Lu,
    • D. E. Marley,
    • S. P. McKee,
    • A. McCarn,
    • X. T. Meng,
    • H. A. Neal,
    • J. Qian,
    • T. A. Schwarz,
    • J. Searcy,
    • K. Sekhon,
    • I. Siral,
    • Y. Wu,
    • Z. Xi,
    • D. Zhang,
    • B. Zhou &
    • J. Zhu
  121. Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan, USA

    • G. Arabidze,
    • R. Brock,
    • A. Chegwidden,
    • H. De la Torre,
    • T. Farooque,
    • W. C. Fisher,
    • G. Halladjian,
    • R. Hauser,
    • D. Hayden,
    • J. Huston,
    • M. C. Mondragon,
    • B. G. Pope,
    • B. D. Schoenrock,
    • R. Schwienhorst &
    • C. Willis
  122. INFN Sezione di Milano, Milano, Italy

    • G. Alimonti,
    • A. Andreazza,
    • A. Camplani,
    • L. Carminati,
    • D. Cavalli,
    • M. Citterio,
    • G. Costa,
    • M. Fanti,
    • D. Giugni,
    • T. Lari,
    • M. Lazzaroni,
    • L. Mandelli,
    • S. Manzoni,
    • S. M. Mazza,
    • C. Meroni,
    • S. Monzani,
    • L. Perini,
    • F. Ragusa,
    • M. G. Ratti,
    • S. Resconi,
    • S. Shojaii,
    • A. Stabile,
    • G. F. Tartarelli,
    • C. Troncon,
    • R. Turra &
    • M. Villaplana Perez
  123. Dipartimento di Fisica, Università di Milano, Milano, Italy

    • A. Andreazza,
    • A. Camplani,
    • L. Carminati,
    • M. Fanti,
    • M. Lazzaroni,
    • S. Manzoni,
    • S. M. Mazza,
    • S. Monzani,
    • L. Perini,
    • F. Ragusa,
    • M. G. Ratti,
    • R. Turra &
    • M. Villaplana Perez
  124. B.I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Minsk, Republic of Belarus

    • S. Harkusha,
    • Y. Kulchitsky,
    • Y. A. Kurochkin &
    • P. V. Tsiareshka
  125. Research Institute for Nuclear Problems of Byelorussian State University, Minsk, Republic of Belarus

    • A. Hrynevich
  126. Group of Particle Physics, University of Montreal, Montreal, Quebec, Canada

    • J.-F. Arguin,
    • G. Azuelos,
    • T. R. V. Billoud,
    • F. Dallaire,
    • O. A. Ducu,
    • B. Freund,
    • L. G. Gagnon,
    • C. Leroy,
    • K. Mochizuki,
    • T. Nguyen Manh,
    • R. Rezvani &
    • D. Shoaleh Saadi
  127. P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow, Russia

    • A. V. Akimov,
    • I. L. Gavrilenko,
    • A. A. Komar,
    • R. Mashinistov,
    • P. Yu. Nechaeva,
    • A. Shmeleva,
    • A. A. Snesarev,
    • V. V. Sulin,
    • V. O. Tikhomirov &
    • K. Zhukov
  128. Institute for Theoretical and Experimental Physics (ITEP), Moscow, Russia

    • A. Artamonov,
    • P. A. Gorbounov,
    • V. Khovanskiy,
    • P. B. Shatalov &
    • I. I. Tsukerman
  129. National Research Nuclear University MEPhI, Moscow, Russia

    • A. Antonov,
    • K. Belotskiy,
    • N. L. Belyaev,
    • O. Bulekov,
    • V. A. Kantserov,
    • D. Krasnopevtsev,
    • D. Ponomarenko,
    • N. Proklova,
    • A. Romaniouk,
    • E. Shulga,
    • N. Smirnov,
    • S. Yu. Smirnov,
    • Y. Smirnov,
    • E. Yu. Soldatov,
    • S. Timoshenko &
    • K. Vorobev
  130. D.V. Skobeltsyn Institute of Nuclear Physics, M.V. Lomonosov Moscow State University, Moscow, Russia

    • A. S. Boldyrev,
    • L. K. Gladilin,
    • V. A. Kramarenko,
    • A. Maevskiy,
    • S. Yu. Sivoklokov &
    • L. N. Smirnova
  131. Fakultät für Physik, Ludwig-Maximilians-Universität München, München, Germany

    • M. Adersberger,
    • M. Bender,
    • O. Biebel,
    • C. Bock,
    • D. Bogavac,
    • B. K. B. Chow,
    • G. Duckeck,
    • B. M. Flierl,
    • N. M. Hartmann,
    • J. J. Heinrich,
    • R. Hertenberger,
    • F. Hoenig,
    • F. Legger,
    • J. Lorenz,
    • P. J. Lösel,
    • T. Maier,
    • A. Mann,
    • S. Mehlhase,
    • C. Meineck,
    • J. Mitrevski,
    • R. S. P. Mueller,
    • F. Rauscher,
    • A. Ruschke,
    • B. M. Schachtner,
    • D. Schaile,
    • C. Unverdorben,
    • C. Valderanis &
    • R. Walker
  132. Max-Planck-Institut für Physik (Werner-Heisenberg-Institut), München, Germany

    • T. Barillari,
    • S. Bethke,
    • G. Cortiana,
    • K. M. Ecker,
    • M. J. Flowerdew,
    • C. Giuliani,
    • A. E. Kiryunin,
    • S. Kluth,
    • A. Knue,
    • N. M. Köhler,
    • O. Kortner,
    • S. Kortner,
    • D. Krauss,
    • H. Kroha,
    • A. La Rosa,
    • A. Macchiolo,
    • A. A. Maier,
    • T. G. McCarthy,
    • S. Menke,
    • F. Mueller,
    • R. Nisius,
    • S. Nowak,
    • H. Oberlack,
    • B. Pearson,
    • R. Richter,
    • P. Rieck,
    • D. Salihagic,
    • N. Savic,
    • P. Schacht,
    • K. R. Schmidt-Sommerfeld,
    • F. Spettel,
    • S. Stonjek,
    • H. von der Schmitt,
    • A. Wildauer &
    • Z. Zinonos
  133. Nagasaki Institute of Applied Science, Nagasaki, Japan

    • T. Fusayasu &
    • M. Shimojima
  134. Graduate School of Science and Kobayashi-Maskawa Institute, Nagoya University, Nagoya, Japan

    • Y. Horii,
    • K. Kawade,
    • Y. Nakahama,
    • K. Onogi,
    • M. Tomoto,
    • J. Wakabayashi &
    • K. Yamauchi
  135. INFN Sezione di Napoli, Napoli, Italy

    • A. Aloisio,
    • M. G. Alviggi,
    • V. Canale,
    • G. Carlino,
    • F. Cirotto,
    • F. Conventi,
    • R. de Asmundis,
    • M. Della Pietra,
    • C. Di Donato,
    • A. Doria,
    • V. Izzo,
    • L. Merola,
    • S. Perrella,
    • E. Rossi &
    • G. Sekhniaidze
  136. Dipartimento di Fisica, Università di Napoli, Napoli, Italy

    • A. Aloisio,
    • M. G. Alviggi,
    • V. Canale,
    • F. Cirotto,
    • M. Della Pietra,
    • C. Di Donato,
    • L. Merola,
    • S. Perrella &
    • E. Rossi
  137. Department of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico, USA

    • I. Gorelov,
    • M. R. Hoeferkamp,
    • N. C. Mc Fadden,
    • S. C. Seidel,
    • A. C. Taylor &
    • K. Toms
  138. Institute for Mathematics, Astrophysics and Particle Physics, Radboud University Nijmegen/Nikhef, Nijmegen, the Netherlands

    • S. Caron,
    • L. Colasurdo,
    • V. Croft,
    • N. De Groot,
    • F. Filthaut,
    • C. Galea,
    • A. C. König,
    • S. Nektarijevic,
    • J. F. P. Schouwenberg &
    • A. Strubig
  139. Nikhef National Institute for Subatomic Physics and University of Amsterdam, Amsterdam, the Netherlands

    • I. Angelozzi,
    • M. Bedognetti,
    • S. Bentvelsen,
    • D. Berge,
    • G. J. Bobbink,
    • K. Bos,
    • L. Brenner,
    • L. S. Bruni,
    • R. Castelijn,
    • A. Castelli,
    • W. S. Chan,
    • A. P. Colijn,
    • P. de Jong,
    • I. Deigaard,
    • D. Duda,
    • P. Ferrari,
    • F. Hartjes,
    • O. Igonkina,
    • P. Kluit,
    • E. Koffeman,
    • J. Mahlstedt,
    • J. Meyer,
    • K. P. Oussoren,
    • G. Sabato,
    • D. Salek,
    • M. Slawinska,
    • N. Valencic,
    • W. Van Den Wollenberg,
    • H. van der Graaf,
    • I. van Vulpen,
    • M. C. van Woerden,
    • P. Vankov,
    • W. Verkerke,
    • J. C. Vermeulen,
    • M. Vreeswijk,
    • H. Weits,
    • S. Williams &
    • T. M. H. Wolf
  140. Department of Physics, Northern Illinois University, DeKalb, Illinois, USA

    • J. Adelman,
    • E. Brost,
    • B. Burghgrave,
    • D. Chakraborty,
    • P. Klimek &
    • P. Saha
  141. Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, Russia

    • A. V. Anisenkov,
    • E. M. Baldin,
    • V. S. Bobrovnikov,
    • A. G. Bogdanchikov,
    • A. R. Buzykaev,
    • V. F. Kazanin,
    • A. G. Kharlamov,
    • T. Kharlamova,
    • A. A. Korol,
    • A. L. Maslennikov,
    • D. A. Maximov,
    • S. V. Peleganchuk,
    • P. Podberezko,
    • O. L. Rezanova,
    • A. M. Soukharev,
    • A. A. Talyshev &
    • Yu. A. Tikhonov
  142. Department of Physics, New York University, New York, New York, USA

    • C. Becot,
    • C. Bernius,
    • K. Cranmer,
    • A. Haas,
    • L. Heinrich,
    • B. Kaplan,
    • K. Karthik,
    • R. Konoplich,
    • A. I. Mincer,
    • P. Nemethy,
    • R. M. Neves &
    • C. J. Treado
  143. Ohio State University, Columbus, Ohio, USA

    • J. B. Beacham,
    • A. Boveia,
    • S. Che,
    • K. K. Gan,
    • B. Gui,
    • H. Kagan,
    • R. D. Kass,
    • K. A. Looper,
    • C. B. Martin,
    • S. Shrestha &
    • B. B. Tannenwald
  144. Faculty of Science, Okayama University, Okayama, Japan

    • I. Nakano
  145. Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, Oklahoma, USA

    • B. Abbott,
    • M. Alhroob,
    • D. Bertsche,
    • A. De Benedetti,
    • P. Gutierrez,
    • A. Marzin,
    • O. Rifki,
    • H. Severini,
    • Y. Shen,
    • D. R. Shope,
    • P. Skubic,
    • M. Strauss &
    • Q. Wang
  146. Department of Physics, Oklahoma State University, Stillwater, Oklahoma, USA

    • J. Cantero,
    • J. Haley,
    • D. O. Jamin,
    • A. Khanov,
    • F. Rizatdinova &
    • D. Sidorov
  147. Palacký University, RCPTM, Olomouc, Czech Republic

    • L. Chytka,
    • P. Hamal,
    • M. Hrabovsky,
    • J. Kvita &
    • L. Nozka
  148. Center for High Energy Physics, University of Oregon, Eugene, Oregon, USA

    • R. Abreu,
    • B. W. Allen,
    • J. E. Brau,
    • A. Dattagupta,
    • W. H. Hopkins,
    • S. Majewski,
    • C. T. Potter,
    • P. Radloff,
    • N. B. Sinev,
    • I. M. Snyder,
    • M. C. Stockton,
    • D. M. Strom,
    • E. Torrence,
    • C. Wanotayaroj,
    • K. Whalen &
    • F. Winklmeier
  149. LAL, Univ. Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, Orsay, France

    • B. Abeloos,
    • M. K. Ayoub,
    • A. Bassalat,
    • C. Bourdarios,
    • J. B. De Vivie De Regie,
    • D. Delgove,
    • C. Delporte,
    • L. Duflot,
    • M. Escalier,
    • L. Fayard,
    • D. Fournier,
    • C. R. Goudet,
    • J.-F. Grivaz,
    • F. Hariri,
    • S. Henrot-Versille,
    • J. Hrivnac,
    • L. Iconomidou-Fayard,
    • M. Kado,
    • A. Lounis,
    • C. Maiani,
    • N. Makovec,
    • N. Morange,
    • C. Nellist,
    • P. Petroff,
    • L. Poggioli,
    • P. Puzo,
    • D. Rousseau,
    • G. Rybkin,
    • A. C. Schaffer,
    • L. Serin,
    • S. Simion,
    • R. Tanaka,
    • D. Varouchas,
    • D. Zerwas &
    • Z. Zhang
  150. Graduate School of Science, Osaka University, Osaka, Japan

    • N. Ishijima,
    • M. Nomachi,
    • Y. Sugaya,
    • J. J. Teoh &
    • Y. Yamaguchi
  151. Department of Physics, University of Oslo, Oslo, Norway

    • M. K. Bugge,
    • D. Cameron,
    • J. R. Catmore,
    • S. Feigl,
    • L. Franconi,
    • V. Garonne,
    • B. K. Gjelsten,
    • E. Gramstad,
    • V. Morisbak,
    • J. K. Nilsen,
    • F. Ould-Saada,
    • S. Raddum,
    • A. L. Read,
    • O. Røhne,
    • H. Sandaker,
    • C. Serfon,
    • S. Stapnes &
    • A. Strandlie
  152. Department of Physics, Oxford University, Oxford, UK

    • G. Artoni,
    • M. Backes,
    • A. J. Barr,
    • K. Becker,
    • L. Beresford,
    • D. Bortoletto,
    • J. T. P. Burr,
    • A. M. Cooper-Sarkar,
    • M. Crispin Ortuzar,
    • W. J. Fawcett,
    • J. A. Frost,
    • E. J. Gallas,
    • F. Giuli,
    • S. Gupta,
    • C. Gwenlan,
    • C. P. Hays,
    • J. Henderson,
    • T. B. Huffman,
    • C. Issever,
    • K. Nagai,
    • M. E. Nelson,
    • R. B. Nickerson,
    • N. Norjoharuddeen,
    • M. Petrov,
    • M. A. Pickering,
    • V. Radescu,
    • J. C.-L. Tseng,
    • G. H. A. Viehhauser,
    • L. Vigani,
    • A. R. Weidberg &
    • J. Zhong
  153. INFN Sezione di Pavia, Pavia, Italy

    • P. Dondero,
    • E. M. Farina,
    • R. Ferrari,
    • M. Fraternali,
    • G. Gaudio,
    • G. Introzzi,
    • A. Kourkoumeli-Charalampidi,
    • A. Lanza,
    • M. Livan,
    • A. Negri,
    • G. Polesello,
    • D. M. Rebuzzi,
    • A. Rimoldi &
    • V. Vercesi
  154. Dipartimento di Fisica, Università di Pavia, Pavia, Italy

    • P. Dondero,
    • E. M. Farina,
    • M. Fraternali,
    • G. Introzzi,
    • A. Kourkoumeli-Charalampidi,
    • M. Livan,
    • A. Negri,
    • D. M. Rebuzzi &
    • A. Rimoldi
  155. Department of Physics, University of Pennsylvania, Philadelphia, Pennsylvania, USA

    • W. K. Balunas,
    • R. A. Creager,
    • J. R. Dandoy,
    • W. K. Di Clemente,
    • R. R. M. Fletcher,
    • B. Haney,
    • T. C. Herwig,
    • J. Kroll,
    • E. Lipeles,
    • J. Machado Miguens,
    • C. Meyer,
    • K. P. Mistry,
    • J. Reichert,
    • E. D. Resseguie,
    • L. Schaefer,
    • E. Thomson,
    • R. Vanguri,
    • H. H. Williams &
    • K. Yoshihara
  156. National Research Centre “Kurchatov Institute B.P. Konstantinov Petersburg Nuclear Physics Institute, St Petersburg, Russia

    • A. Basalaev,
    • A. Ezhilov,
    • O. L. Fedin,
    • V. Gratchev,
    • M. Levchenko,
    • V. P. Maleev,
    • I. Naryshkin,
    • Y. F. Ryabov,
    • V. A. Schegelsky &
    • V. Solovyev
  157. INFN Sezione di Pisa, Pisa, Italy

    • A. Annovi,
    • F. Bertolucci,
    • N. V. Biesuz,
    • V. Cavasinni,
    • G. Chiarelli,
    • T. Del Prete,
    • M. DellOrso,
    • S. Donati,
    • P. Giannetti,
    • S. Leone,
    • C. Roda,
    • F. Scuri,
    • C. L. Sotiropoulou,
    • M. Spalla &
    • G. Volpi
  158. Dipartimento di Fisica E. Fermi, Università di Pisa, Pisa, Italy

    • A. Annovi,
    • F. Bertolucci,
    • N. V. Biesuz,
    • V. Cavasinni,
    • G. Chiarelli,
    • T. Del Prete,
    • M. DellOrso,
    • S. Donati,
    • P. Giannetti,
    • S. Leone,
    • C. Roda,
    • F. Scuri,
    • C. L. Sotiropoulou,
    • M. Spalla &
    • G. Volpi
  159. Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania, USA

    • R. M. Bianchi,
    • J. Boudreau,
    • B. T. Carlson,
    • C. Escobar,
    • C. Farina,
    • T. M. Hong,
    • J. Mueller,
    • K. Sapp &
    • J. Su
  160. Laboratório de Instrumentação e Física Experimental de Partículas - LIP, Lisboa, Portugal

    • J. A. Aguilar-Saavedra,
    • S. P. Amor Dos Santos,
    • A. Amorim,
    • J. P. Araque,
    • J. Carvalho,
    • N. F. Castro,
    • P. Conde Muiño,
    • M. J. Da Cunha Sargedas De Sousa,
    • M. C. N. Fiolhais,
    • B. Galhardo,
    • A. Gomes,
    • R. Gonçalo,
    • P. M. Jorge,
    • A. Maio,
    • J. Maneira,
    • L. F. Oleiro Seabra,
    • A. Onofre,
    • R. Pedro,
    • H. Santos,
    • J. G. Saraiva,
    • J. Silva,
    • A. Tavares Delgado,
    • F. Veloso &
    • H. Wolters
  161. Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal

    • A. Amorim,
    • P. Conde Muiño,
    • M. J. Da Cunha Sargedas De Sousa,
    • A. Gomes,
    • P. M. Jorge,
    • J. Machado Miguens,
    • A. Maio,
    • J. Maneira,
    • R. Pedro &
    • A. Tavares Delgado
  162. Department of Physics, University of Coimbra, Coimbra, Portugal

    • S. P. Amor Dos Santos,
    • J. Carvalho,
    • M. C. N. Fiolhais,
    • B. Galhardo,
    • F. Veloso &
    • H. Wolters
  163. Centro de Física Nuclear da Universidade de Lisboa, Lisboa, Portugal

    • A. Gomes,
    • J. G. Saraiva &
    • J. Silva
  164. Departamento de Fisica, Universidade do Minho, Braga, Portugal

    • A. Onofre
  165. Departamento de Fisica Teorica y del Cosmos and CAFPE, Universidad de Granada, Granada (Spain), Portugal

    • J. A. Aguilar-Saavedra
  166. Dep Fisica and CEFITEC of Faculdade de Ciencias e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal

  167. Institute of Physics, Academy of Sciences of the Czech Republic, Praha, Czech Republic

    • J. Chudoba,
    • J. Hejbal,
    • O. Hladik,
    • T. Jakoubek,
    • O. Kepka,
    • A. Kupco,
    • V. Kus,
    • M. Lokajicek,
    • R. Lysak,
    • M. Marcisovsky,
    • M. Mikestikova,
    • S. Nemecek,
    • O. Penc,
    • P. Sicho,
    • P. Staroba,
    • M. Svatos &
    • M. Tasevsky
  168. Czech Technical University in Prague, Praha, Czech Republic

    • B. Ali,
    • K. Augsten,
    • D. Caforio,
    • P. Gallus,
    • M. Havranek,
    • Z. Hubacek,
    • M. Myska,
    • S. Pospisil,
    • V. Simak,
    • T. Slavicek,
    • K. Smolek,
    • M. Solar,
    • A. Sopczak,
    • M. Suk,
    • V. Vacek,
    • M. Vlasak,
    • P. Vokac,
    • V. Vrba &
    • M. Zeman
  169. Charles University, Faculty of Mathematics and Physics, Prague, Czech Republic

    • P. Berta,
    • I. Carli,
    • T. Davidek,
    • J. Dolejsi,
    • Z. Dolezal,
    • P. Kodys,
    • T. Kosek,
    • R. Leitner,
    • M. Mlynarikova,
    • P. Reznicek,
    • D. Scheirich,
    • R. Slovak,
    • M. Spousta,
    • T. Sykora,
    • P. Tas,
    • S. Valkar &
    • V. Vorobel
  170. State Research Center Institute for High Energy Physics (Protvino), NRC KI, Russia

    • A. Borisov,
    • E. Cheremushkina,
    • S. P. Denisov,
    • R. M. Fakhrutdinov,
    • A. B. Fenyuk,
    • D. Golubkov,
    • A. Kamenshchikov,
    • A. N. Karyukhin,
    • A. S. Kozhin,
    • A. A. Minaenko,
    • A. G. Myagkov,
    • V. Nikolaenko,
    • A. Ryzhov,
    • A. A. Solodkov,
    • O. V. Solovyanov,
    • E. A. Starchenko,
    • A. M. Zaitsev &
    • O. Zenin
  171. Particle Physics Department, Rutherford Appleton Laboratory, Didcot, UK

    • T. Adye,
    • J. T. Baines,
    • B. M. Barnett,
    • S. Burke,
    • A. Dewhurst,
    • J. Dopke,
    • D. Emeliyanov,
    • B. J. Gallop,
    • C. N. P. Gee,
    • S. J. Haywood,
    • J. Kirk,
    • S. Martin-Haugh,
    • S. J. McMahon,
    • R. P. Middleton,
    • W. J. Murray,
    • P. W. Phillips,
    • D. P. C. Sankey,
    • C. Sawyer,
    • F. J. Wickens &
    • M. Wielers
  172. INFN Sezione di Roma, Roma, Italy

    • F. Anulli,
    • P. Bagiacchi,
    • P. Bagnaia,
    • M. Bauce,
    • C. Bini,
    • M. Corradi,
    • D. De Pedis,
    • A. De Salvo,
    • S. Falciano,
    • S. Gentile,
    • S. Giagu,
    • G. Gustavino,
    • M. Kuna,
    • F. Lacava,
    • C. Luci,
    • L. Luminari,
    • A. Messina,
    • A. Nisati,
    • E. Pasqualucci,
    • E. Petrolo,
    • L. Pontecorvo,
    • M. Rescigno,
    • S. Rosati,
    • F. Safai Tehrani,
    • M. Vanadia,
    • R. Vari &
    • S. Veneziano
  173. Dipartimento di Fisica, Sapienza Università di Roma, Roma, Italy

    • P. Bagiacchi,
    • P. Bagnaia,
    • M. Bauce,
    • C. Bini,
    • M. Corradi,
    • S. Gentile,
    • S. Giagu,
    • G. Gustavino,
    • M. Kuna,
    • F. Lacava,
    • C. Luci,
    • A. Messina &
    • M. Vanadia
  174. INFN Sezione di Roma Tor Vergata, Roma, Italy

    • G. Aielli,
    • P. Camarri,
    • R. Cardarelli,
    • L. Cerrito,
    • U. De Sanctis,
    • A. Di Ciaccio,
    • B. Liberti,
    • L. Massa &
    • R. Santonico
  175. Dipartimento di Fisica, Università di Roma Tor Vergata, Roma, Italy

    • G. Aielli,
    • P. Camarri,
    • L. Cerrito,
    • U. De Sanctis,
    • A. Di Ciaccio,
    • L. Massa &
    • R. Santonico
  176. INFN Sezione di Roma Tre, Roma, Italy

    • A. Baroncelli,
    • M. Biglietti,
    • F. Ceradini,
    • B. Di Micco,
    • A. Farilla,
    • M. Iodice,
    • D. Orestano,
    • F. Petrucci,
    • D. Puddu,
    • G. Salamanna,
    • M. Sessa,
    • C. Stanescu &
    • M. Verducci
  177. Dipartimento di Matematica e Fisica, Università Roma Tre, Roma, Italy

    • F. Ceradini,
    • B. Di Micco,
    • D. Orestano,
    • F. Petrucci,
    • D. Puddu,
    • G. Salamanna,
    • M. Sessa &
    • M. Verducci
  178. Faculté des Sciences Ain Chock, Réseau Universitaire de Physique des Hautes Energies - Université Hassan II, Casablanca, Morocco

    • D. Benchekroun,
    • A. Chafaq &
    • A. Hoummada
  179. Centre National de lEnergie des Sciences Techniques Nucleaires, Rabat, Morocco

  180. Faculté des Sciences Semlalia, Université Cadi Ayyad, LPHEA-Marrakech, Morocco

    • M. El Kacimi &
    • D. Goujdami
  181. Faculté des Sciences, Université Mohamed Premier and LPTPM, Oujda, Morocco

    • M. Aaboud,
    • J. E. Derkaoui &
    • M. Ouchrif
  182. Faculté des sciences, Université Mohammed V, Rabat, Morocco

    • R. Cherkaoui El Moursli,
    • F. Fassi &
    • Y. Tayalati
  183. DSM/IRFU (Institut de Recherches sur les Lois Fondamentales de lUnivers), CEA Saclay (Commissariat à lEnergie Atomique et aux Energies Alternatives), Gif-sur-Yvette, France

    • H. Bachacou,
    • F. Balli,
    • F. Bauer,
    • N. Besson,
    • M. Boonekamp,
    • L. Chevalier,
    • M. Dano Hoffmann,
    • F. Deliot,
    • D. Denysiuk,
    • A. I. Etienvre,
    • A. Formica,
    • P. F. Giraud,
    • J. Goncalves Pinto Firmino Da Costa,
    • C. Guyot,
    • S. Hassani,
    • F. Jeanneau,
    • W. Kozanecki,
    • J. F. Laporte,
    • E. P. Le Quilleuc,
    • A. A. J. Lesage,
    • B. Mansoulie,
    • J.-P. Meyer,
    • T. J. Neep,
    • R. Nicolaidou,
    • A. Ouraou,
    • L. Pacheco Rodriguez,
    • M. M. Perego,
    • A. Peyaud,
    • L. Schoeffel,
    • Ph. Schune,
    • Ph. Schwemling &
    • J. Schwindling
  184. Santa Cruz Institute for Particle Physics, University of California Santa Cruz, Santa Cruz, California, USA

    • O. S. AbouZeid,
    • A. A. Affolder,
    • M. Battaglia,
    • C. Debenedetti,
    • E. L. Gkougkousis,
    • A. A. Grillo,
    • M. Hance,
    • A. T. Law,
    • A. M. Litke,
    • J. Nielsen,
    • J. M. Pasner,
    • R. Reece,
    • P. Rose,
    • H. F.-W. Sadrozinski,
    • S. Schier,
    • B. A. Schumm &
    • A. Seiden
  185. Department of Physics, University of Washington, Seattle, Washington, USA

    • C. Alpigiani,
    • D. Blackburn,
    • A. G. Goussiou,
    • S.-C. Hsu,
    • W. J. Johnson,
    • H. J. Lubatti,
    • S. Meehan,
    • R. Rosten,
    • J. Rothberg,
    • H. L. Russell,
    • J. Schaarschmidt,
    • E. Torró Pastor,
    • G. Watts &
    • N. L. Whallon
  186. Department of Physics and Astronomy, University of Sheffield, Sheffield, UK

    • C. Anastopoulos,
    • D. Costanzo,
    • T. Cuhadar Donszelmann,
    • I. Dawson,
    • G. N. Hamity,
    • M. C. Hodgkinson,
    • P. Hodgson,
    • P. Johansson,
    • E. V. Korolkova,
    • E. Kourlitis,
    • D. Kyriazopoulos,
    • C. M. Macdonald,
    • P. S. Miyagawa,
    • H. J. Moss,
    • D. R. Tovey,
    • T. Vickey &
    • O. E. Vickey Boeriu
  187. Department of Physics, Shinshu University, Nagano, Japan

    • Y. Hasegawa &
    • T. Takeshita
  188. Department Physik, Universität Siegen, Siegen, Germany

    • N. B. Atlay,
    • P. Buchholz,
    • A. Campoverde,
    • H. Czirr,
    • I. Fleck,
    • S. Ghasemi,
    • I. Ibragimov,
    • Y. Li,
    • W. Walkowiak &
    • M. Ziolkowski
  189. Department of Physics, Simon Fraser University, Burnaby, British Columbia, Canada

    • Q. Buat,
    • A. J. Horton,
    • D. Mori,
    • D. C. ONeil,
    • K. Pachal,
    • B. Stelzer,
    • D. Temple,
    • H. Torres,
    • J. Van Nieuwkoop &
    • M. C. Vetterli
  190. SLAC National Accelerator Laboratory, Stanford, California, USA

    • A. J. Armbruster,
    • T. Barklow,
    • R. Bartoldus,
    • H. S. Bawa,
    • J. E. Black,
    • Y. S. Gao,
    • N. Garelli,
    • P. Grenier,
    • N. Ilic,
    • Z. Jiang,
    • M. Kagan,
    • M. Kocian,
    • T. Koi,
    • J. Moss,
    • R. Mount,
    • F. Rubbo,
    • A. Salnikov,
    • A. Schwartzman,
    • D. Su,
    • L. Tompkins,
    • M. Wittgen,
    • C. Young &
    • Q. Zeng
  191. Faculty of Mathematics, Physics & Informatics, Comenius University, Bratislava, Slovak Republic

    • R. Astalos,
    • P. Bartos,
    • T. Blazek,
    • T. Dado,
    • M. Melo,
    • L. Plazak,
    • J. Smiesko,
    • I. Sykora,
    • S. Tokár &
    • T. Ženiš
  192. Department of Subnuclear Physics, Institute of Experimental Physics of the Slovak Academy of Sciences, Kosice, Slovak Republic

    • D. Bruncko,
    • E. Kladiva,
    • P. Strizenec &
    • J. Urban
  193. Department of Physics, University of Cape Town, Cape Town, South Africa

    • A. Hamilton &
    • S. Yacoob
  194. Department of Physics, University of Johannesburg, Johannesburg, South Africa

    • S. H. Connell &
    • N. Govender
  195. School of Physics, University of the Witwatersrand, Johannesburg, South Africa

    • Y. Hernández Jiménez,
    • H. Jivan,
    • D. Kar,
    • B. R. Mellado Garcia,
    • R. G. Reed,
    • X. Ruan &
    • E. Sideras Haddad
  196. Department of Physics, Stockholm University, Stockholm, Sweden

    • Y. Abulaiti,
    • H. Akerstedt,
    • K. Bendtz,
    • G. Bertoli,
    • O. Bessidskaia Bylund,
    • C. Bohm,
    • R. M. D. Carney,
    • C. Clement,
    • W. A. Cribbs,
    • K. Gellerstedt,
    • S. Hellman,
    • K. Jon-And,
    • O. Lundberg,
    • D. A. Milstead,
    • T. Moa,
    • S. Molander,
    • R. Poettgen,
    • V. Rossetti,
    • N. W. Shaikh,
    • A. Shcherbakova,
    • S. B. Silverstein,
    • J. Sjölin,
    • S. Strandberg,
    • M. Ughetto,
    • E. Valdes Santurio &
    • V. Wallangen
  197. The Oskar Klein Centre, Stockholm, Sweden

    • Y. Abulaiti,
    • H. Akerstedt,
    • K. Bendtz,
    • G. Bertoli,
    • O. Bessidskaia Bylund,
    • R. M. D. Carney,
    • C. Clement,
    • W. A. Cribbs,
    • K. Gellerstedt,
    • S. Hellman,
    • K. Jon-And,
    • O. Lundberg,
    • D. A. Milstead,
    • T. Moa,
    • S. Molander,
    • R. Poettgen,
    • V. Rossetti,
    • N. W. Shaikh,
    • A. Shcherbakova,
    • J. Sjölin,
    • S. Strandberg,
    • M. Ughetto,
    • E. Valdes Santurio &
    • V. Wallangen
  198. Physics Department, Royal Institute of Technology, Stockholm, Sweden

    • A. Kastanas,
    • B. Lund-Jensen,
    • P. E. Sidebo &
    • J. Strandberg
  199. Departments of Physics & Astronomy and Chemistry, Stony Brook University, Stony Brook, New York, USA

    • T. Balestri,
    • C. P. Bee,
    • V. Dao,
    • J. Hobbs,
    • P. Huo,
    • J. Jia,
    • H. Li,
    • B. E. Lindquist,
    • R. L. McCarthy,
    • A. Montalbano,
    • L. Morvaj,
    • G. Piacquadio,
    • S. K. Radhakrishnan,
    • M. Rijssenbeek,
    • R. D. Schamberger,
    • D. Tsybychev,
    • A. Zaman &
    • M. Zhou
  200. Department of Physics and Astronomy, University of Sussex, Brighton, UK

    • N. L. Abraham,
    • B. M. M. Allbrooke,
    • L. Asquith,
    • A. Cerri,
    • C. A. Chavez Barajas,
    • A. De Santo,
    • G. Lerner,
    • F. Miano,
    • F. Salvatore,
    • I. Santoyo Castillo,
    • C. Y. Shehu,
    • K. Suruliz,
    • M. R. Sutton,
    • I. Vivarelli &
    • O. J. Winston
  201. School of Physics, University of Sydney, Sydney, Australia

    • C. W. Black,
    • K. D. Finelli,
    • A. Limosani,
    • A. K. Morley,
    • A. F. Saavedra,
    • M. Scarcella,
    • C. J. E. Suster,
    • K. E. Varvell,
    • J. Wang &
    • B. Yabsley
  202. Institute of Physics, Academia Sinica, Taipei, Taiwan

    • S. Hou,
    • S. C. Lee,
    • S. C. Lin,
    • B. Liu,
    • F. Lo Sterzo,
    • R. Mazini,
    • L. Shi,
    • D. A. Soh,
    • P. K. Teng,
    • S. M. Wang,
    • W. Wang &
    • Y. Yang
  203. Department of Physics, Technion: Israel Institute of Technology, Haifa, Israel

    • H. Abreu,
    • O. Gabizon,
    • E. Gozani,
    • Y. Rozen,
    • S. Tarem &
    • N. van Eldik
  204. Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv, Israel

    • H. Abramowicz,
    • G. Alexander,
    • A. Ashkenazi,
    • G. Bella,
    • O. Benary,
    • Y. Benhammou,
    • T. Cao,
    • M. Davies,
    • J. Duarte-Campderros,
    • E. Etzion,
    • A. Gershon,
    • O. Gueta,
    • O. Kuprash,
    • Y. Oren,
    • A. Soffer,
    • J. Taenzer &
    • N. Taiblum
  205. Department of Physics, Aristotle University of Thessaloniki, Thessaloniki, Greece

    • C. Gentsos,
    • S. Gkaitatzis,
    • D. Iliadis,
    • N. Kimura,
    • K. Kordas,
    • I. Maznas,
    • C. Petridou &
    • D. Sampsonidis
  206. International Center for Elementary Particle Physics and Department of Physics, The University of Tokyo, Tokyo, Japan

    • S. Adachi,
    • S. Asai,
    • S. Chen,
    • Y. Enari,
    • K. Hanawa,
    • M. Ishino,
    • N. Kanaya,
    • Y. Kataoka,
    • C. Kato,
    • T. Kawamoto,
    • T. Kishimoto,
    • A. Kobayashi,
    • T. Kobayashi,
    • Y. Komori,
    • C. Kozakai,
    • T. Mashimo,
    • T. Masubuchi,
    • Y. Minami,
    • Y. Minegishi,
    • T. Mori,
    • M. Morinaga,
    • T. Nakamura,
    • Y. Ninomiya,
    • T. Nobe,
    • Y. Okumura,
    • M. Saito,
    • T. Saito,
    • H. Sakamoto,
    • J. Tanaka,
    • K. Terashi,
    • S. Yamamoto &
    • T. Yamanaka
  207. Graduate School of Science and Technology, Tokyo Metropolitan University, Tokyo, Japan

    • U. Bratzler &
    • C. Fukunaga
  208. Department of Physics, Tokyo Institute of Technology, Tokyo, Japan

    • D. Hayakawa,
    • M. Ishitsuka,
    • O. Jinnouchi,
    • D. Kobayashi,
    • M. Kuze,
    • K. Motohashi,
    • M. Tanaka,
    • K. Todome &
    • D. Yamaguchi
  209. Tomsk State University, Tomsk, Russia

    • A. Khodinov &
    • A. Vaniachine
  210. Department of Physics, University of Toronto, Toronto, Ontario, Canada

    • S. H. Abidi,
    • S. J. Batista,
    • C. C. Chau,
    • K. J. R. Cormier,
    • D. A. DeMarco,
    • R. Di Sipio,
    • M. Diamond,
    • Keoshkerian,
    • P. Krieger,
    • A. Liblong,
    • G. McGoldrick,
    • R. S. Orr,
    • V. R. Pascuzzi,
    • P. Savard,
    • P. Sinervo,
    • R. J. Teuscher,
    • W. Trischuk,
    • L. M. Veloce &
    • N. Venturi
  211. INFN-TIFPA, Trento, Italy

    • R. Iuppa
  212. University of Trento, Trento, Italy

    • R. Iuppa
  213. TRIUMF, Vancouver, British Columbia, Canada

    • S. V. Chekulaev,
    • F. Guescini,
    • N. P. Hessey,
    • N. Hod,
    • J. Jovicevic,
    • L. L. Kurchaninov,
    • O. Stelzer-Chilton,
    • R. Tafirout &
    • I. M. Trigger
  214. Department of Physics and Astronomy, York University, Toronto, Ontario, Canada

    • J. Manjarres Ramos &
    • W. Taylor
  215. Faculty of Pure and Applied Sciences, and Center for Integrated Research in Fundamental Science and Engineering, University of Tsukuba, Tsukuba, Japan

    • M. Hagihara,
    • K. Hara,
    • S. Honda,
    • F. Ito,
    • K. Kasahara,
    • S. H. Kim,
    • K. Kiuchi,
    • K. Nagata,
    • H. Okawa,
    • K. Sato &
    • F. Ukegawa
  216. Department of Physics and Astronomy, Tufts University, Medford, Massachusetts, USA

    • P. H. Beauchemin,
    • E. Meoni,
    • K. Sliwa &
    • H. Son
  217. Department of Physics and Astronomy, University of California Irvine, Irvine, California, USA

    • D. J. Antrim,
    • D. W. Casper,
    • T. Colombo,
    • M. Frate,
    • D. Guest,
    • A. J. Lankford,
    • A. S. Mete,
    • A. Nelson,
    • K. Ntekas,
    • D. A. Scannicchio,
    • M. Schernau,
    • A. Taffard,
    • G. Unel &
    • D. Whiteson
  218. INFN Gruppo Collegato di Udine, Sezione di Trieste, Udine, Italy

    • B. S. Acharya,
    • S. Cheatham,
    • M. Cobal,
    • M. P. Giordani,
    • M. Pinamonti,
    • W. B. Quayle,
    • A. Sanchez Pineda,
    • L. Serkin,
    • K. Shaw,
    • R. Soualah &
    • L. Truong
  219. ICTP, Trieste, Italy

    • B. S. Acharya,
    • W. B. Quayle,
    • L. Serkin,
    • K. Shaw &
    • L. Truong
  220. Dipartimento di Chimica, Fisica e Ambiente, Università di Udine, Udine, Italy

    • S. Cheatham,
    • M. Cobal,
    • M. P. Giordani,
    • M. Pinamonti,
    • A. Sanchez Pineda &
    • R. Soualah
  221. Department of Physics and Astronomy, University of Uppsala, Uppsala, Sweden

    • E. Bergeaas Kuutmann,
    • P. Bokan,
    • R. Brenner,
    • T. Ekelof,
    • M. Ellert,
    • A. Ferrari,
    • P. O. J. Gradin,
    • H. J. Maddocks,
    • M. U. F. Martensson,
    • H. Ohman,
    • C. Rangel-Smith &
    • P. H. Sales De Bruin
  222. Department of Physics, University of Illinois, Urbana, Illinois, USA

    • M. Atkinson,
    • R. Caminal Armadans,
    • V. Cavaliere,
    • P. Chang,
    • S. Errede,
    • B. H. Hooberman,
    • M. Khader,
    • Y. P. Kulinich,
    • K. Lie,
    • T. M. Liss,
    • L. Liu,
    • J. D. Long,
    • V. I. Martinez Outschoorn,
    • M. S. Neubauer,
    • A. Puri,
    • M. Rybar,
    • R. Shang,
    • A. M. Sickles,
    • I. Vichou,
    • J. C. Zeng &
    • M. Zhang
  223. Instituto de Fisica Corpuscular (IFIC) and Departamento de Fisica Atomica, Molecular y Nuclear and Departamento de Ingeniería Electrónica and Instituto de Microelectrónica de Barcelona (IMB-CNM), University of Valencia and CSIC, Valencia, Spain

    • D. Álvarez Piqueras,
    • L. Barranco Navarro,
    • S. Cabrera Urbán,
    • V. Castillo Gimenez,
    • L. Cerda Alberich,
    • M. J. Costa,
    • P. Fernandez Martinez,
    • A. Ferrer,
    • L. Fiorini,
    • J. Fuster,
    • C. García,
    • J. E. García Navarro,
    • S. González de la Hoz,
    • E. Higón-Rodriguez,
    • J. Jimenez Pena,
    • C. Lacasta,
    • J. Mamuzic,
    • S. Marti-Garcia,
    • D. Melini,
    • V. A. Mitsou,
    • S. Pedraza Lopez,
    • D. Rodriguez Rodriguez,
    • E. Romero Adam,
    • J. Salt,
    • J. Sánchez,
    • V. Sanchez Martinez,
    • U. Soldevila,
    • A. Valero,
    • J. A. Valls Ferrer &
    • M. Vos
  224. Department of Physics, University of British Columbia, Vancouver, British Columbia, Canada

    • F. Cormier,
    • M. Danninger,
    • W. Fedorko,
    • C. Gay,
    • M. Gignac,
    • A. Held,
    • S. Henkelmann,
    • A. Lister &
    • S. Rettie
  225. Department of Physics and Astronomy, University of Victoria, Victoria, British Columbia, Canada

    • J. Albert,
    • Y. H. Chiu,
    • A. A. Elliot,
    • M. Fincke-Keeler,
    • K. Hamano,
    • E. Hill,
    • R. Keeler,
    • R. Kowalewski,
    • E. S. Kuwertz,
    • T. Kwan,
    • M. LeBlanc,
    • M. Lefebvre,
    • R. A. McPherson,
    • J. Pearce,
    • R. Seuster,
    • R. Sobie,
    • M. Trovatelli &
    • M. Venturi
  226. Department of Physics, University of Warwick, Coventry, UK

    • M. Beckingham,
    • J. S. Ennis,
    • S. M. Farrington,
    • P. F. Harrison,
    • A. Jelinskas,
    • C. Jeske,
    • T. A. Martin,
    • W. J. Murray,
    • E. Pianori &
    • M. Spangenberg
  227. Waseda University, Tokyo, Japan

    • T. Iizawa,
    • T. Kaji,
    • T. Mitani,
    • Y. Sakurai &
    • K. Yorita
  228. Department of Particle Physics, The Weizmann Institute of Science, Rehovot, Israel

    • P. Balek,
    • S. Bressler,
    • Z. H. Citron,
    • E. Duchovni,
    • M. Dumancic,
    • E. Gross,
    • M. K. Köhler,
    • D. Lellouch,
    • L. J. Levinson,
    • G. Mikenberg,
    • A. Milov,
    • M. Pitt,
    • I. Ravinovich,
    • I. Roth,
    • J. Shlomi,
    • V. Smakhtin &
    • D. Turgeman
  229. Department of Physics, University of Wisconsin, Madison, Wisconsin, USA

    • Sw. Banerjee,
    • W. Guan,
    • A. S. Hard,
    • Y. Heng,
    • H. Ji,
    • X. Ju,
    • L. S. Kaplan,
    • L. Kashif,
    • Y. Ming,
    • F. Wang,
    • W. Wiedenmann,
    • S. L. Wu,
    • F. Zhang,
    • C. Zhou &
    • G. Zobernig
  230. Fakultät für Physik und Astronomie, Julius-Maximilians-Universität, Würzburg, Germany

    • V. Herget,
    • F. Kuger,
    • A. Redelbach,
    • O. Sidiropoulou,
    • G. Siragusa,
    • R. Ströhmer,
    • T. Trefzger,
    • S. W. Weber &
    • A. Zibell
  231. Fakultät für Mathematik und Naturwissenschaften, Fachgruppe Physik, Bergische Universität Wuppertal, Wuppertal, Germany

    • A. A. E. Bannoura,
    • D. Boerner,
    • T. Cornelissen,
    • F. Ellinghaus,
    • G. Ernis,
    • J. Fischer,
    • T. Flick,
    • G. Gilles,
    • K. Hamacher,
    • T. Harenberg,
    • D. Hirschbuehl,
    • S. Kersten,
    • J. T. Kuechler,
    • P. Mättig,
    • M. Neumann,
    • S. Pataraia,
    • C. J. Riegel,
    • M. Sandhoff,
    • F. Tepel,
    • M. Vogel,
    • W. Wagner &
    • C. Zeitnitz
  232. Department of Physics, Yale University, New Haven, Connecticut, USA

    • O. K. Baker,
    • E. Benhar Noccioli,
    • J. Cummings,
    • S. Demers,
    • T. Lagouri,
    • A. Loginov,
    • M. Paganini,
    • D. Paredes Hernandez,
    • C. O. Shimmin,
    • L. A. Thomsen,
    • P. Tipton &
    • J. G. Vasquez
  233. Yerevan Physics Institute, Yerevan, Armenia

    • H. Hakobyan &
    • G. Vardanyan
  234. CH-1211, Geneva 23, Switzerland

    • J. Schovancova
  235. Centre de Calcul de lInstitut National de Physique Nucléaire et de Physique des Particules (IN2P3), Villeurbanne, France

    • G. Rahal
  236. Department of Physics, Kings College London, London, UK

    • B. S. Acharya
  237. Institute of Physics, Azerbaijan Academy of Sciences, Baku, Azerbaijan

    • F. Ahmadov,
    • N. Huseynov &
    • N. Javadov
  238. Novosibirsk State University, Novosibirsk, Russia

    • A. V. Anisenkov,
    • E. M. Baldin,
    • V. S. Bobrovnikov,
    • A. R. Buzykaev,
    • V. F. Kazanin,
    • A. G. Kharlamov,
    • T. Kharlamova,
    • A. A. Korol,
    • A. L. Maslennikov,
    • D. A. Maximov,
    • S. V. Peleganchuk,
    • O. L. Rezanova,
    • A. M. Soukharev,
    • A. A. Talyshev &
    • Yu. A. Tikhonov
  239. TRIUMF, Vancouver, British Columbia, Canada

    • G. Azuelos,
    • D. M. Gingrich,
    • F. G. Oakham,
    • P. Savard &
    • M. C. Vetterli
  240. Department of Physics & Astronomy, University of Louisville, Louisville, Kentucky, USA

    • Sw. Banerjee
  241. Physics Department, An-Najah National University, Nablus, Palestine

    • A. Bassalat
  242. Department of Physics, California State University, Fresno, California, USA

    • H. S. Bawa &
    • Y. S. Gao
  243. Department of Physics, University of Fribourg, Fribourg, Switzerland

    • H. P. Beck
  244. II Physikalisches Institut, Georg-August-Universität, Göttingen, Germany

    • P. Bokan
  245. Departament de Fisica de la Universitat Autonoma de Barcelona, Barcelona, Spain

    • M. P. Casado
  246. Departamento de Fisica e Astronomia, Faculdade de Ciencias, Universidade do Porto, Portugal

    • N. F. Castro
  247. Tomsk State University, Tomsk, Russia

    • G. A. Chelkov
  248. The Collaborative Innovation Center of Quantum Matter (CICQM), Beijing, China

    • X. Chen
  249. Universita di Napoli Parthenope, Napoli, Italy

    • F. Conventi
  250. Institute of Particle Physics (IPP), Canada

    • F. Corriveau,
    • R. A. McPherson,
    • S. H. Robertson,
    • R. Sobie &
    • R. J. Teuscher
  251. Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest, Romania

    • O. A. Ducu
  252. Department of Physics, St Petersburg State Polytechnical University, St Petersburg, Russia

    • O. L. Fedin
  253. Borough of Manhattan Community College, City University of New York, New York City, USA

    • M. C. N. Fiolhais
  254. Department of Physics, The University of Michigan, Ann Arbor, Michigan, USA

    • C. Geng &
    • B. Li
  255. Centre for High Performance Computing, CSIR Campus, Rosebank, Cape Town, South Africa

    • N. Govender
  256. Louisiana Tech University, Ruston, Louisiana, USA

    • Z. D. Greenwood,
    • L. Sawyer &
    • M. Wobisch
  257. Institucio Catalana de Recerca i Estudis Avancats, ICREA, Barcelona, Spain

    • S. Grinstein,
    • A. Juste Rozas &
    • M. Martinez
  258. Graduate School of Science, Osaka University, Osaka, Japan

    • K. Hanagaki
  259. Fakultät für Mathematik und Physik, Albert-Ludwigs-Universität, Freiburg, Germany

    • B. Heinemann
  260. Institute for Mathematics, Astrophysics and Particle Physics, Radboud University Nijmegen/Nikhef, Nijmegen, the Netherlands

    • O. Igonkina
  261. Department of Physics, The University of Texas at Austin, Austin, Texas, USA

    • Y. Ilchenko &
    • P. U. E. Onyisi
  262. Institute of Theoretical Physics, Ilia State University, Tbilisi, Georgia

    • J. Jejelava
  263. CERN, Geneva, Switzerland

    • P. Jenni
  264. Georgian Technical University (GTU), Tbilisi, Georgia

    • J. Khubua
  265. Ochadai Academic Production, Ochanomizu University, Tokyo, Japan

    • T. Kono &
    • R. Nagai
  266. Manhattan College, New York, New York, USA

    • R. Konoplich
  267. Academia Sinica Grid Computing, Institute of Physics, Academia Sinica, Taipei, Taiwan

    • S. C. Lin
  268. School of Physics, Shandong University, Shandong, China

    • B. Liu
  269. Departamento de Fisica Teorica y del Cosmos and CAFPE, Universidad de Granada, Granada (Spain), Portugal

    • D. Melini
  270. Department of Physics, California State University, Sacramento, California, USA

    • J. Moss
  271. Moscow Institute of Physics and Technology State University, Dolgoprudny, Russia

    • A. G. Myagkov,
    • V. Nikolaenko &
    • A. M. Zaitsev
  272. Departement de Physique Nucleaire et Corpusculaire, Université de Genève, Geneva, Switzerland

    • M. Nessi
  273. International School for Advanced Studies (SISSA), Trieste, Italy

    • M. Pinamonti
  274. Institut de Física dAltes Energies (IFAE), The Barcelona Institute of Science and Technology, Barcelona, Spain

    • Y. Rodina
  275. School of Physics, Sun Yat-sen University, Guangzhou, China

    • L. Shi
  276. Institute for Nuclear Research and Nuclear Energy (INRNE) of the Bulgarian Academy of Sciences, Sofia, Bulgaria

    • M. Shiyakova
  277. Faculty of Physics, M.V. Lomonosov Moscow State University, Moscow, Russia

    • L. N. Smirnova
  278. Institute of Physics, Academia Sinica, Taipei, Taiwan

    • H. Y. Song &
    • G. Zhang
  279. National Research Nuclear University MEPhI, Moscow, Russia

    • V. O. Tikhomirov
  280. Department of Physics, Stanford University, Stanford, California, USA

    • L. Tompkins
  281. Institute for Particle and Nuclear Physics, Wigner Research Centre for Physics, Budapest, Hungary

    • J. Toth
  282. Giresun University, Faculty of Engineering, Turkey

    • I. Turk Cakir
  283. CPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, France

    • C. Wang &
    • R. Zhang
  284. Department of Physics, Nanjing University, Jiangsu, China

    • W. Wang
  285. University of Malaya, Department of Physics, Kuala Lumpur, Malaysia

    • I. Yusuff
  286. LAL, Univ. Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, Orsay, France

    • Y. Zhao
  287. Deceased

    • O. Abdinov,
    • A. Antonov,
    • O. Benary,
    • W. Blum,
    • V. Chernyatin,
    • N. Giokaris,
    • H. Hakobyan,
    • P. Ioannou,
    • V. Khovanskiy,
    • A. A. Komar,
    • A. Loginov,
    • B. Osculati,
    • R. D. St. Denis &
    • I. Vichou

Consortia

  1. ATLAS Collaboration

    • M. Aaboud,
    • G. Aad,
    • B. Abbott,
    • J. Abdallah,
    • O. Abdinov,
    • B. Abeloos,
    • S. H. Abidi,
    • O. S. AbouZeid,
    • N. L. Abraham,
    • H. Abramowicz,
    • H. Abreu,
    • R. Abreu,
    • Y. Abulaiti,
    • B. S. Acharya,
    • S. Adachi,
    • L. Adamczyk,
    • J. Adelman,
    • M. Adersberger,
    • T. Adye,
    • A. A. Affolder,
    • T. Agatonovic-Jovin,
    • C. Agheorghiesei,
    • J. A. Aguilar-Saavedra,
    • S. P. Ahlen,
    • F. Ahmadov,
    • G. Aielli,
    • S. Akatsuka,
    • H. Akerstedt,
    • T. P. A. Åkesson,
    • A. V. Akimov,
    • G. L. Alberghi,
    • J. Albert,
    • M. J. Alconada Verzini,
    • M. Aleksa,
    • I. N. Aleksandrov,
    • C. Alexa,
    • G. Alexander,
    • T. Alexopoulos,
    • M. Alhroob,
    • B. Ali,
    • M. Aliev,
    • G. Alimonti,
    • J. Alison,
    • S. P. Alkire,
    • B. M. M. Allbrooke,
    • B. W. Allen,
    • P. P. Allport,
    • A. Aloisio,
    • A. Alonso,
    • F. Alonso,
    • C. Alpigiani,
    • A. A. Alshehri,
    • M. Alstaty,
    • B. Alvarez Gonzalez,
    • D. Álvarez Piqueras,
    • M. G. Alviggi,
    • B. T. Amadio,
    • Y. Amaral Coutinho,
    • C. Amelung,
    • D. Amidei,
    • S. P. Amor Dos Santos,
    • A. Amorim,
    • S. Amoroso,
    • G. Amundsen,
    • C. Anastopoulos,
    • L. S. Ancu,
    • N. Andari,
    • T. Andeen,
    • C. F. Anders,
    • J. K. Anders,
    • K. J. Anderson,
    • A. Andreazza,
    • V. Andrei,
    • S. Angelidakis,
    • I. Angelozzi,
    • A. Angerami,
    • F. Anghinolfi,
    • A. V. Anisenkov,
    • N. Anjos,
    • A. Annovi,
    • C. Antel,
    • M. Antonelli,
    • A. Antonov,
    • D. J. Antrim,
    • F. Anulli,
    • M. Aoki,
    • L. Aperio Bella,
    • G. Arabidze,
    • Y. Arai,
    • J. P. Araque,
    • V. Araujo Ferraz,
    • A. T. H. Arce,
    • R. E. Ardell,
    • F. A. Arduh,
    • J.-F. Arguin,
    • S. Argyropoulos,
    • M. Arik,
    • A. J. Armbruster,
    • L. J. Armitage,
    • O. Arnaez,
    • H. Arnold,
    • M. Arratia,
    • O. Arslan,
    • A. Artamonov,
    • G. Artoni,
    • S. Artz,
    • S. Asai,
    • N. Asbah,
    • A. Ashkenazi,
    • L. Asquith,
    • K. Assamagan,
    • R. Astalos,
    • M. Atkinson,
    • N. B. Atlay,
    • K. Augsten,
    • G. Avolio,
    • B. Axen,
    • M. K. Ayoub,
    • G. Azuelos,
    • A. E. Baas,
    • M. J. Baca,
    • H. Bachacou,
    • K. Bachas,
    • M. Backes,
    • M. Backhaus,
    • P. Bagiacchi,
    • P. Bagnaia,
    • J. T. Baines,
    • M. Bajic,
    • O. K. Baker,
    • E. M. Baldin,
    • P. Balek,
    • T. Balestri,
    • F. Balli,
    • W. K. Balunas,
    • E. Banas,
    • Sw. Banerjee,
    • A. A. E. Bannoura,
    • L. Barak,
    • E. L. Barberio,
    • D. Barberis,
    • M. Barbero,
    • T. Barillari,
    • M.-S. Barisits,
    • T. Barklow,
    • N. Barlow,
    • S. L. Barnes,
    • B. M. Barnett,
    • R. M. Barnett,
    • Z. Barnovska-Blenessy,
    • A. Baroncelli,
    • G. Barone,
    • A. J. Barr,
    • L. Barranco Navarro,
    • F. Barreiro,
    • J. Barreiro Guimarães da Costa,
    • R. Bartoldus,
    • A. E. Barton,
    • P. Bartos,
    • A. Basalaev,
    • A. Bassalat,
    • R. L. Bates,
    • S. J. Batista,
    • J. R. Batley,
    • M. Battaglia,
    • M. Bauce,
    • F. Bauer,
    • H. S. Bawa,
    • J. B. Beacham,
    • M. D. Beattie,
    • T. Beau,
    • P. H. Beauchemin,
    • P. Bechtle,
    • H. P. Beck,
    • K. Becker,
    • M. Becker,
    • M. Beckingham,
    • C. Becot,
    • A. J. Beddall,
    • A. Beddall,
    • V. A. Bednyakov,
    • M. Bedognetti,
    • C. P. Bee,
    • T. A. Beermann,
    • M. Begalli,
    • M. Begel,
    • J. K. Behr,
    • A. S. Bell,
    • G. Bella,
    • L. Bellagamba,
    • A. Bellerive,
    • M. Bellomo,
    • K. Belotskiy,
    • O. Beltramello,
    • N. L. Belyaev,
    • O. Benary,
    • D. Benchekroun,
    • M. Bender,
    • K. Bendtz,
    • N. Benekos,
    • Y. Benhammou,
    • E. Benhar Noccioli,
    • J. Benitez,
    • D. P. Benjamin,
    • M. Benoit,
    • J. R. Bensinger,
    • S. Bentvelsen,
    • L. Beresford,
    • M. Beretta,
    • D. Berge,
    • E. Bergeaas Kuutmann,
    • N. Berger,
    • J. Beringer,
    • S. Berlendis,
    • N. R. Bernard,
    • G. Bernardi,
    • C. Bernius,
    • F. U. Bernlochner,
    • T. Berry,
    • P. Berta,
    • C. Bertella,
    • G. Bertoli,
    • F. Bertolucci,
    • I. A. Bertram,
    • C. Bertsche,
    • D. Bertsche,
    • G. J. Besjes,
    • O. Bessidskaia Bylund,
    • M. Bessner,
    • N. Besson,
    • C. Betancourt,
    • A. Bethani,
    • S. Bethke,
    • A. J. Bevan,
    • R. M. Bianchi,
    • M. Bianco,
    • O. Biebel,
    • D. Biedermann,
    • R. Bielski,
    • N. V. Biesuz,
    • M. Biglietti,
    • J. Bilbao De Mendizabal,
    • T. R. V. Billoud,
    • H. Bilokon,
    • M. Bindi,
    • A. Bingul,
    • C. Bini,
    • S. Biondi,
    • T. Bisanz,
    • C. Bittrich,
    • D. M. Bjergaard,
    • C. W. Black,
    • J. E. Black,
    • K. M. Black,
    • D. Blackburn,
    • R. E. Blair,
    • T. Blazek,
    • I. Bloch,
    • C. Blocker,
    • A. Blue,
    • W. Blum,
    • U. Blumenschein,
    • S. Blunier,
    • G. J. Bobbink,
    • V. S. Bobrovnikov,
    • S. S. Bocchetta,
    • A. Bocci,
    • C. Bock,
    • M. Boehler,
    • D. Boerner,
    • D. Bogavac,
    • A. G. Bogdanchikov,
    • C. Bohm,
    • V. Boisvert,
    • P. Bokan,
    • T. Bold,
    • A. S. Boldyrev,
    • M. Bomben,
    • M. Bona,
    • M. Boonekamp,
    • A. Borisov,
    • G. Borissov,
    • J. Bortfeldt,
    • D. Bortoletto,
    • V. Bortolotto,
    • K. Bos,
    • D. Boscherini,
    • M. Bosman,
    • J. D. Bossio Sola,
    • J. Boudreau,
    • J. Bouffard,
    • E. V. Bouhova-Thacker,
    • D. Boumediene,
    • C. Bourdarios,
    • S. K. Boutle,
    • A. Boveia,
    • J. Boyd,
    • I. R. Boyko,
    • J. Bracinik,
    • A. Brandt,
    • G. Brandt,
    • O. Brandt,
    • U. Bratzler,
    • B. Brau,
    • J. E. Brau,
    • W. D. Breaden Madden,
    • K. Brendlinger,
    • A. J. Brennan,
    • L. Brenner,
    • R. Brenner,
    • S. Bressler,
    • D. L. Briglin,
    • T. M. Bristow,
    • D. Britton,
    • D. Britzger,
    • F. M. Brochu,
    • I. Brock,
    • R. Brock,
    • G. Brooijmans,
    • T. Brooks,
    • W. K. Brooks,
    • J. Brosamer,
    • E. Brost,
    • J. H. Broughton,
    • P. A. Bruckman de Renstrom,
    • D. Bruncko,
    • A. Bruni,
    • G. Bruni,
    • L. S. Bruni,
    • B. H. Brunt,
    • M. Bruschi,
    • N. Bruscino,
    • P. Bryant,
    • L. Bryngemark,
    • T. Buanes,
    • Q. Buat,
    • P. Buchholz,
    • A. G. Buckley,
    • I. A. Budagov,
    • F. Buehrer,
    • M. K. Bugge,
    • O. Bulekov,
    • D. Bullock,
    • H. Burckhart,
    • S. Burdin,
    • C. D. Burgard,
    • A. M. Burger,
    • B. Burghgrave,
    • K. Burka,
    • S. Burke,
    • I. Burmeister,
    • J. T. P. Burr,
    • E. Busato,
    • D. Büscher,
    • V. Büscher,
    • P. Bussey,
    • J. M. Butler,
    • C. M. Buttar,
    • J. M. Butterworth,
    • P. Butti,
    • W. Buttinger,
    • A. Buzatu,
    • A. R. Buzykaev,
    • S. Cabrera Urbán,
    • D. Caforio,
    • V. M. Cairo,
    • O. Cakir,
    • N. Calace,
    • P. Calafiura,
    • A. Calandri,
    • G. Calderini,
    • P. Calfayan,
    • G. Callea,
    • L. P. Caloba,
    • S. Calvente Lopez,
    • D. Calvet,
    • S. Calvet,
    • T. P. Calvet,
    • R. Camacho Toro,
    • S. Camarda,
    • P. Camarri,
    • D. Cameron,
    • R. Caminal Armadans,
    • C. Camincher,
    • S. Campana,
    • M. Campanelli,
    • A. Camplani,
    • A. Campoverde,
    • V. Canale,
    • M. Cano Bret,
    • J. Cantero,
    • T. Cao,
    • M. D. M. Capeans Garrido,
    • I. Caprini,
    • M. Caprini,
    • M. Capua,
    • R. M. Carbone,
    • R. Cardarelli,
    • F. Cardillo,
    • I. Carli,
    • T. Carli,
    • G. Carlino,
    • B. T. Carlson,
    • L. Carminati,
    • R. M. D. Carney,
    • S. Caron,
    • E. Carquin,
    • G. D. Carrillo-Montoya,
    • J. Carvalho,
    • D. Casadei,
    • M. P. Casado,
    • M. Casolino,
    • D. W. Casper,
    • R. Castelijn,
    • A. Castelli,
    • V. Castillo Gimenez,
    • N. F. Castro,
    • A. Catinaccio,
    • J. R. Catmore,
    • A. Cattai,
    • J. Caudron,
    • V. Cavaliere,
    • E. Cavallaro,
    • D. Cavalli,
    • M. Cavalli-Sforza,
    • V. Cavasinni,
    • E. Celebi,
    • F. Ceradini,
    • L. Cerda Alberich,
    • A. S. Cerqueira,
    • A. Cerri,
    • L. Cerrito,
    • F. Cerutti,
    • A. Cervelli,
    • S. A. Cetin,
    • A. Chafaq,
    • D. Chakraborty,
    • S. K. Chan,
    • W. S. Chan,
    • Y. L. Chan,
    • P. Chang,
    • J. D. Chapman,
    • D. G. Charlton,
    • A. Chatterjee,
    • C. C. Chau,
    • C. A. Chavez Barajas,
    • S. Che,
    • S. Cheatham,
    • A. Chegwidden,
    • S. Chekanov,
    • S. V. Chekulaev,
    • G. A. Chelkov,
    • M. A. Chelstowska,
    • C. Chen,
    • H. Chen,
    • S. Chen,
    • S. Chen,
    • X. Chen,
    • Y. Chen,
    • H. C. Cheng,
    • H. J. Cheng,
    • Y. Cheng,
    • A. Cheplakov,
    • E. Cheremushkina,
    • R. Cherkaoui El Moursli,
    • V. Chernyatin,
    • E. Cheu,
    • L. Chevalier,
    • V. Chiarella,
    • G. Chiarelli,
    • G. Chiodini,
    • A. S. Chisholm,
    • A. Chitan,
    • Y. H. Chiu,
    • M. V. Chizhov,
    • K. Choi,
    • A. R. Chomont,
    • S. Chouridou,
    • B. K. B. Chow,
    • V. Christodoulou,
    • D. Chromek-Burckhart,
    • M. C. Chu,
    • J. Chudoba,
    • A. J. Chuinard,
    • J. J. Chwastowski,
    • L. Chytka,
    • A. K. Ciftci,
    • D. Cinca,
    • V. Cindro,
    • I. A. Cioara,
    • C. Ciocca,
    • A. Ciocio,
    • F. Cirotto,
    • Z. H. Citron,
    • M. Citterio,
    • M. Ciubancan,
    • A. Clark,
    • B. L. Clark,
    • M. R. Clark,
    • P. J. Clark,
    • R. N. Clarke,
    • C. Clement,
    • Y. Coadou,
    • M. Cobal,
    • A. Coccaro,
    • J. Cochran,
    • L. Colasurdo,
    • B. Cole,
    • A. P. Colijn,
    • J. Collot,
    • T. Colombo,
    • P. Conde Muiño,
    • E. Coniavitis,
    • S. H. Connell,
    • I. A. Connelly,
    • V. Consorti,
    • S. Constantinescu,
    • G. Conti,
    • F. Conventi,
    • M. Cooke,
    • B. D. Cooper,
    • A. M. Cooper-Sarkar,
    • F. Cormier,
    • K. J. R. Cormier,
    • T. Cornelissen,
    • M. Corradi,
    • F. Corriveau,
    • A. Cortes-Gonzalez,
    • G. Cortiana,
    • G. Costa,
    • M. J. Costa,
    • D. Costanzo,
    • G. Cottin,
    • G. Cowan,
    • B. E. Cox,
    • K. Cranmer,
    • S. J. Crawley,
    • R. A. Creager,
    • G. Cree,
    • S. Crépé-Renaudin,
    • F. Crescioli,
    • W. A. Cribbs,
    • M. Crispin Ortuzar,
    • M. Cristinziani,
    • V. Croft,
    • G. Crosetti,
    • A. Cueto,
    • T. Cuhadar Donszelmann,
    • J. Cummings,
    • M. Curatolo,
    • J. Cúth,
    • H. Czirr,
    • P. Czodrowski,
    • G. Damen,
    • S. DAuria,
    • M. DOnofrio,
    • M. J. Da Cunha Sargedas De Sousa,
    • C. Da Via,
    • W. Dabrowski,
    • T. Dado,
    • T. Dai,
    • O. Dale,
    • F. Dallaire,
    • C. Dallapiccola,
    • M. Dam,
    • J. R. Dandoy,
    • N. P. Dang,
    • A. C. Daniells,
    • N. S. Dann,
    • M. Danninger,
    • M. Dano Hoffmann,
    • V. Dao,
    • G. Darbo,
    • S. Darmora,
    • J. Dassoulas,
    • A. Dattagupta,
    • T. Daubney,
    • W. Davey,
    • C. David,
    • T. Davidek,
    • M. Davies,
    • P. Davison,
    • E. Dawe,
    • I. Dawson,
    • K. De,
    • R. de Asmundis,
    • A. De Benedetti,
    • S. De Castro,
    • S. De Cecco,
    • N. De Groot,
    • P. de Jong,
    • H. De la Torre,
    • F. De Lorenzi,
    • A. De Maria,
    • D. De Pedis,
    • A. De Salvo,
    • U. De Sanctis,
    • A. De Santo,
    • K. De Vasconcelos Corga,
    • J. B. De Vivie De Regie,
    • W. J. Dearnaley,
    • R. Debbe,
    • C. Debenedetti,
    • D. V. Dedovich,
    • N. Dehghanian,
    • I. Deigaard,
    • M. Del Gaudio,
    • J. Del Peso,
    • T. Del Prete,
    • D. Delgove,
    • F. Deliot,
    • C. M. Delitzsch,
    • A. DellAcqua,
    • L. DellAsta,
    • M. DellOrso,
    • M. Della Pietra,
    • D. della Volpe,
    • M. Delmastro,
    • C. Delporte,
    • P. A. Delsart,
    • D. A. DeMarco,
    • S. Demers,
    • M. Demichev,
    • A. Demilly,
    • S. P. Denisov,
    • D. Denysiuk,
    • D. Derendarz,
    • J. E. Derkaoui,
    • F. Derue,
    • P. Dervan,
    • K. Desch,
    • C. Deterre,
    • K. Dette,
    • P. O. Deviveiros,
    • A. Dewhurst,
    • S. Dhaliwal,
    • A. Di Ciaccio,
    • L. Di Ciaccio,
    • W. K. Di Clemente,
    • C. Di Donato,
    • A. Di Girolamo,
    • B. Di Girolamo,
    • B. Di Micco,
    • R. Di Nardo,
    • K. F. Di Petrillo,
    • A. Di Simone,
    • R. Di Sipio,
    • D. Di Valentino,
    • C. Diaconu,
    • M. Diamond,
    • F. A. Dias,
    • M. A. Diaz,
    • E. B. Diehl,
    • J. Dietrich,
    • S. Díez Cornell,
    • A. Dimitrievska,
    • J. Dingfelder,
    • P. Dita,
    • S. Dita,
    • F. Dittus,
    • F. Djama,
    • T. Djobava,
    • J. I. Djuvsland,
    • M. A. B. do Vale,
    • D. Dobos,
    • M. Dobre,
    • C. Doglioni,
    • J. Dolejsi,
    • Z. Dolezal,
    • M. Donadelli,
    • S. Donati,
    • P. Dondero,
    • J. Donini,
    • J. Dopke,
    • A. Doria,
    • M. T. Dova,
    • A. T. Doyle,
    • E. Drechsler,
    • M. Dris,
    • Y. Du,
    • J. Duarte-Campderros,
    • E. Duchovni,
    • G. Duckeck,
    • A. Ducourthial,
    • O. A. Ducu,
    • D. Duda,
    • A. Dudarev,
    • A. Chr. Dudder,
    • E. M. Duffield,
    • L. Duflot,
    • M. Dührssen,
    • M. Dumancic,
    • A. E. Dumitriu,
    • A. K. Duncan,
    • M. Dunford,
    • H. Duran Yildiz,
    • M. Düren,
    • A. Durglishvili,
    • D. Duschinger,
    • B. Dutta,
    • M. Dyndal,
    • C. Eckardt,
    • K. M. Ecker,
    • R. C. Edgar,
    • T. Eifert,
    • G. Eigen,
    • K. Einsweiler,
    • T. Ekelof,
    • M. El Kacimi,
    • R. El Kosseifi,
    • V. Ellajosyula,
    • M. Ellert,
    • S. Elles,
    • F. Ellinghaus,
    • A. A. Elliot,
    • N. Ellis,
    • J. Elmsheuser,
    • M. Elsing,
    • D. Emeliyanov,
    • Y. Enari,
    • O. C. Endner,
    • J. S. Ennis,
    • J. Erdmann,
    • A. Ereditato,
    • G. Ernis,
    • M. Ernst,
    • S. Errede,
    • E. Ertel,
    • M. Escalier,
    • H. Esch,
    • C. Escobar,
    • B. Esposito,
    • A. I. Etienvre,
    • E. Etzion,
    • H. Evans,
    • A. Ezhilov,
    • F. Fabbri,
    • L. Fabbri,
    • G. Facini,
    • R. M. Fakhrutdinov,
    • S. Falciano,
    • R. J. Falla,
    • J. Faltova,
    • Y. Fang,
    • M. Fanti,
    • A. Farbin,
    • A. Farilla,
    • C. Farina,
    • E. M. Farina,
    • T. Farooque,
    • S. Farrell,
    • S. M. Farrington,
    • P. Farthouat,
    • F. Fassi,
    • P. Fassnacht,
    • D. Fassouliotis,
    • M. Faucci Giannelli,
    • A. Favareto,
    • W. J. Fawcett,
    • L. Fayard,
    • O. L. Fedin,
    • W. Fedorko,
    • S. Feigl,
    • L. Feligioni,
    • C. Feng,
    • E. J. Feng,
    • H. Feng,
    • A. B. Fenyuk,
    • L. Feremenga,
    • P. Fernandez Martinez,
    • S. Fernandez Perez,
    • J. Ferrando,
    • A. Ferrari,
    • P. Ferrari,
    • R. Ferrari,
    • D. E. Ferreira de Lima,
    • A. Ferrer,
    • D. Ferrere,
    • C. Ferretti,
    • F. Fiedler,
    • A. Filipčič,
    • M. Filipuzzi,
    • F. Filthaut,
    • M. Fincke-Keeler,
    • K. D. Finelli,
    • M. C. N. Fiolhais,
    • L. Fiorini,
    • A. Fischer,
    • C. Fischer,
    • J. Fischer,
    • W. C. Fisher,
    • N. Flaschel,
    • I. Fleck,
    • P. Fleischmann,
    • R. R. M. Fletcher,
    • T. Flick,
    • B. M. Flierl,
    • L. R. Flores Castillo,
    • M. J. Flowerdew,
    • G. T. Forcolin,
    • A. Formica,
    • A. Forti,
    • A. G. Foster,
    • D. Fournier,
    • H. Fox,
    • S. Fracchia,
    • P. Francavilla,
    • M. Franchini,
    • S. Franchino,
    • D. Francis,
    • L. Franconi,
    • M. Franklin,
    • M. Frate,
    • M. Fraternali,
    • D. Freeborn,
    • S. M. Fressard-Batraneanu,
    • B. Freund,
    • D. Froidevaux,
    • J. A. Frost,
    • C. Fukunaga,
    • E. Fullana Torregrosa,
    • T. Fusayasu,
    • J. Fuster,
    • C. Gabaldon,
    • O. Gabizon,
    • A. Gabrielli,
    • A. Gabrielli,
    • G. P. Gach,
    • S. Gadatsch,
    • S. Gadomski,
    • G. Gagliardi,
    • L. G. Gagnon,
    • P. Gagnon,
    • C. Galea,
    • B. Galhardo,
    • E. J. Gallas,
    • B. J. Gallop,
    • P. Gallus,
    • G. Galster,
    • K. K. Gan,
    • S. Ganguly,
    • J. Gao,
    • Y. Gao,
    • Y. S. Gao,
    • F. M. Garay Walls,
    • C. García,
    • J. E. García Navarro,
    • M. Garcia-Sciveres,
    • R. W. Gardner,
    • N. Garelli,
    • V. Garonne,
    • A. Gascon Bravo,
    • K. Gasnikova,
    • C. Gatti,
    • A. Gaudiello,
    • G. Gaudio,
    • I. L. Gavrilenko,
    • C. Gay,
    • G. Gaycken,
    • E. N. Gazis,
    • C. N. P. Gee,
    • M. Geisen,
    • M. P. Geisler,
    • K. Gellerstedt,
    • C. Gemme,
    • M. H. Genest,
    • C. Geng,
    • S. Gentile,
    • C. Gentsos,
    • S. George,
    • D. Gerbaudo,
    • A. Gershon,
    • S. Ghasemi,
    • M. Ghneimat,
    • B. Giacobbe,
    • S. Giagu,
    • P. Giannetti,
    • S. M. Gibson,
    • M. Gignac,
    • M. Gilchriese,
    • D. Gillberg,
    • G. Gilles,
    • D. M. Gingrich,
    • N. Giokaris,
    • M. P. Giordani,
    • F. M. Giorgi,
    • P. F. Giraud,
    • P. Giromini,
    • D. Giugni,
    • F. Giuli,
    • C. Giuliani,
    • M. Giulini,
    • B. K. Gjelsten,
    • S. Gkaitatzis,
    • I. Gkialas,
    • E. L. Gkougkousis,
    • L. K. Gladilin,
    • C. Glasman,
    • J. Glatzer,
    • P. C. F. Glaysher,
    • A. Glazov,
    • M. Goblirsch-Kolb,
    • J. Godlewski,
    • S. Goldfarb,
    • T. Golling,
    • D. Golubkov,
    • A. Gomes,
    • R. Gonçalo,
    • R. Goncalves Gama,
    • J. Goncalves Pinto Firmino Da Costa,
    • G. Gonella,
    • L. Gonella,
    • A. Gongadze,
    • S. González de la Hoz,
    • S. Gonzalez-Sevilla,
    • L. Goossens,
    • P. A. Gorbounov,
    • H. A. Gordon,
    • I. Gorelov,
    • B. Gorini,
    • E. Gorini,
    • A. Gorišek,
    • A. T. Goshaw,
    • C. Gössling,
    • M. I. Gostkin,
    • C. R. Goudet,
    • D. Goujdami,
    • A. G. Goussiou,
    • N. Govender,
    • E. Gozani,
    • L. Graber,
    • I. Grabowska-Bold,
    • P. O. J. Gradin,
    • J. Gramling,
    • E. Gramstad,
    • S. Grancagnolo,
    • V. Gratchev,
    • P. M. Gravila,
    • H. M. Gray,
    • Z. D. Greenwood,
    • C. Grefe,
    • K. Gregersen,
    • I. M. Gregor,
    • P. Grenier,
    • K. Grevtsov,
    • J. Griffiths,
    • A. A. Grillo,
    • K. Grimm,
    • S. Grinstein,
    • Ph. Gris,
    • J.-F. Grivaz,
    • S. Groh,
    • E. Gross,
    • J. Grosse-Knetter,
    • G. C. Grossi,
    • Z. J. Grout,
    • L. Guan,
    • W. Guan,
    • J. Guenther,
    • F. Guescini,
    • D. Guest,
    • O. Gueta,
    • B. Gui,
    • E. Guido,
    • T. Guillemin,
    • S. Guindon,
    • U. Gul,
    • C. Gumpert,
    • J. Guo,
    • W. Guo,
    • Y. Guo,
    • R. Gupta,
    • S. Gupta,
    • G. Gustavino,
    • P. Gutierrez,
    • N. G. Gutierrez Ortiz,
    • C. Gutschow,
    • C. Guyot,
    • M. P. Guzik,
    • C. Gwenlan,
    • C. B. Gwilliam,
    • A. Haas,
    • C. Haber,
    • H. K. Hadavand,
    • A. Hadef,
    • S. Hageböck,
    • M. Hagihara,
    • H. Hakobyan,
    • M. Haleem,
    • J. Haley,
    • G. Halladjian,
    • G. D. Hallewell,
    • K. Hamacher,
    • P. Hamal,
    • K. Hamano,
    • A. Hamilton,
    • G. N. Hamity,
    • P. G. Hamnett,
    • L. Han,
    • S. Han,
    • K. Hanagaki,
    • K. Hanawa,
    • M. Hance,
    • B. Haney,
    • P. Hanke,
    • J. B. Hansen,
    • J. D. Hansen,
    • M. C. Hansen,
    • P. H. Hansen,
    • K. Hara,
    • A. S. Hard,
    • T. Harenberg,
    • F. Hariri,
    • S. Harkusha,
    • R. D. Harrington,
    • P. F. Harrison,
    • F. Hartjes,
    • N. M. Hartmann,
    • M. Hasegawa,
    • Y. Hasegawa,
    • A. Hasib,
    • S. Hassani,
    • S. Haug,
    • R. Hauser,
    • L. Hauswald,
    • L. B. Havener,
    • M. Havranek,
    • C. M. Hawkes,
    • R. J. Hawkings,
    • D. Hayakawa,
    • D. Hayden,
    • C. P. Hays,
    • J. M. Hays,
    • H. S. Hayward,
    • S. J. Haywood,
    • S. J. Head,
    • T. Heck,
    • V. Hedberg,
    • L. Heelan,
    • K. K. Heidegger,
    • S. Heim,
    • T. Heim,
    • B. Heinemann,
    • J. J. Heinrich,
    • L. Heinrich,
    • C. Heinz,
    • J. Hejbal,
    • L. Helary,
    • A. Held,
    • S. Hellman,
    • C. Helsens,
    • J. Henderson,
    • R. C. W. Henderson,
    • Y. Heng,
    • S. Henkelmann,
    • A. M. Henriques Correia,
    • S. Henrot-Versille,
    • G. H. Herbert,
    • H. Herde,
    • V. Herget,
    • Y. Hernández Jiménez,
    • G. Herten,
    • R. Hertenberger,
    • L. Hervas,
    • T. C. Herwig,
    • G. G. Hesketh,
    • N. P. Hessey,
    • J. W. Hetherly,
    • S. Higashino,
    • E. Higón-Rodriguez,
    • E. Hill,
    • J. C. Hill,
    • K. H. Hiller,
    • S. J. Hillier,
    • I. Hinchliffe,
    • M. Hirose,
    • D. Hirschbuehl,
    • B. Hiti,
    • O. Hladik,
    • X. Hoad,
    • J. Hobbs,
    • N. Hod,
    • M. C. Hodgkinson,
    • P. Hodgson,
    • A. Hoecker,
    • M. R. Hoeferkamp,
    • F. Hoenig,
    • D. Hohn,
    • T. R. Holmes,
    • M. Homann,
    • S. Honda,
    • T. Honda,
    • T. M. Hong,
    • B. H. Hooberman,
    • W. H. Hopkins,
    • Y. Horii,
    • A. J. Horton,
    • J.-Y. Hostachy,
    • S. Hou,
    • A. Hoummada,
    • J. Howarth,
    • J. Hoya,
    • M. Hrabovsky,
    • I. Hristova,
    • J. Hrivnac,
    • T. Hrynova,
    • A. Hrynevich,
    • P. J. Hsu,
    • S.-C. Hsu,
    • Q. Hu,
    • S. Hu,
    • Y. Huang,
    • Z. Hubacek,
    • F. Hubaut,
    • F. Huegging,
    • T. B. Huffman,
    • E. W. Hughes,
    • G. Hughes,
    • M. Huhtinen,
    • P. Huo,
    • N. Huseynov,
    • J. Huston,
    • J. Huth,
    • G. Iacobucci,
    • G. Iakovidis,
    • I. Ibragimov,
    • L. Iconomidou-Fayard,
    • P. Iengo,
    • O. Igonkina,
    • T. Iizawa,
    • Y. Ikegami,
    • M. Ikeno,
    • Y. Ilchenko,
    • D. Iliadis,
    • N. Ilic,
    • G. Introzzi,
    • P. Ioannou,
    • M. Iodice,
    • K. Iordanidou,
    • V. Ippolito,
    • N. Ishijima,
    • M. Ishino,
    • M. Ishitsuka,
    • C. Issever,
    • S. Istin,
    • F. Ito,
    • J. M. Iturbe Ponce,
    • R. Iuppa,
    • H. Iwasaki,
    • J. M. Izen,
    • V. Izzo,
    • S. Jabbar,
    • P. Jackson,
    • V. Jain,
    • K. B. Jakobi,
    • K. Jakobs,
    • S. Jakobsen,
    • T. Jakoubek,
    • D. O. Jamin,
    • D. K. Jana,
    • R. Jansky,
    • J. Janssen,
    • M. Janus,
    • P. A. Janus,
    • G. Jarlskog,
    • N. Javadov,
    • T. Javůrek,
    • M. Javurkova,
    • F. Jeanneau,
    • L. Jeanty,
    • J. Jejelava,
    • A. Jelinskas,
    • P. Jenni,
    • C. Jeske,
    • S. Jézéquel,
    • H. Ji,
    • J. Jia,
    • H. Jiang,
    • Y. Jiang,
    • Z. Jiang,
    • S. Jiggins,
    • J. Jimenez Pena,
    • S. Jin,
    • A. Jinaru,
    • O. Jinnouchi,
    • H. Jivan,
    • P. Johansson,
    • K. A. Johns,
    • C. A. Johnson,
    • W. J. Johnson,
    • K. Jon-And,
    • R. W. L. Jones,
    • S. Jones,
    • T. J. Jones,
    • J. Jongmanns,
    • P. M. Jorge,
    • J. Jovicevic,
    • X. Ju,
    • A. Juste Rozas,
    • M. K. Köhler,
    • A. Kaczmarska,
    • M. Kado,
    • H. Kagan,
    • M. Kagan,
    • S. J. Kahn,
    • T. Kaji,
    • E. Kajomovitz,
    • C. W. Kalderon,
    • A. Kaluza,
    • S. Kama,
    • A. Kamenshchikov,
    • N. Kanaya,
    • S. Kaneti,
    • L. Kanjir,
    • V. A. Kantserov,
    • J. Kanzaki,
    • B. Kaplan,
    • L. S. Kaplan,
    • D. Kar,
    • K. Karakostas,
    • N. Karastathis,
    • M. J. Kareem,
    • E. Karentzos,
    • S. N. Karpov,
    • Z. M. Karpova,
    • K. Karthik,
    • V. Kartvelishvili,
    • A. N. Karyukhin,
    • K. Kasahara,
    • L. Kashif,
    • R. D. Kass,
    • A. Kastanas,
    • Y. Kataoka,
    • C. Kato,
    • A. Katre,
    • J. Katzy,
    • K. Kawade,
    • K. Kawagoe,
    • T. Kawamoto,
    • G. Kawamura,
    • E. F. Kay,
    • V. F. Kazanin,
    • R. Keeler,
    • R. Kehoe,
    • J. S. Keller,
    • J. J. Kempster,
    • Keoshkerian,
    • O. Kepka,
    • B. P. Kerševan,
    • S. Kersten,
    • R. A. Keyes,
    • M. Khader,
    • F. Khalil-zada,
    • A. Khanov,
    • A. G. Kharlamov,
    • T. Kharlamova,
    • A. Khodinov,
    • T. J. Khoo,
    • V. Khovanskiy,
    • E. Khramov,
    • J. Khubua,
    • S. Kido,
    • C. R. Kilby,
    • H. Y. Kim,
    • S. H. Kim,
    • Y. K. Kim,
    • N. Kimura,
    • O. M. Kind,
    • B. T. King,
    • D. Kirchmeier,
    • J. Kirk,
    • A. E. Kiryunin,
    • T. Kishimoto,
    • D. Kisielewska,
    • K. Kiuchi,
    • O. Kivernyk,
    • E. Kladiva,
    • T. Klapdor-Kleingrothaus,
    • M. H. Klein,
    • M. Klein,
    • U. Klein,
    • K. Kleinknecht,
    • P. Klimek,
    • A. Klimentov,
    • R. Klingenberg,
    • T. Klingl,
    • T. Klioutchnikova,
    • E.-E. Kluge,
    • P. Kluit,
    • S. Kluth,
    • J. Knapik,
    • E. Kneringer,
    • E. B. F. G. Knoops,
    • A. Knue,
    • A. Kobayashi,
    • D. Kobayashi,
    • T. Kobayashi,
    • M. Kobel,
    • M. Kocian,
    • P. Kodys,
    • T. Koffas,
    • E. Koffeman,
    • N. M. Köhler,
    • T. Koi,
    • M. Kolb,
    • I. Koletsou,
    • A. A. Komar,
    • Y. Komori,
    • T. Kondo,
    • N. Kondrashova,
    • K. Köneke,
    • A. C. König,
    • T. Kono,
    • R. Konoplich,
    • N. Konstantinidis,
    • R. Kopeliansky,
    • S. Koperny,
    • A. K. Kopp,
    • K. Korcyl,
    • K. Kordas,
    • A. Korn,
    • A. A. Korol,
    • I. Korolkov,
    • E. V. Korolkova,
    • O. Kortner,
    • S. Kortner,
    • T. Kosek,
    • V. V. Kostyukhin,
    • A. Kotwal,
    • A. Koulouris,
    • A. Kourkoumeli-Charalampidi,
    • C. Kourkoumelis,
    • E. Kourlitis,
    • V. Kouskoura,
    • A. B. Kowalewska,
    • R. Kowalewski,
    • T. Z. Kowalski,
    • C. Kozakai,
    • W. Kozanecki,
    • A. S. Kozhin,
    • V. A. Kramarenko,
    • G. Kramberger,
    • D. Krasnopevtsev,
    • A. Krasznahorkay,
    • D. Krauss,
    • A. Kravchenko,
    • J. A. Kremer,
    • M. Kretz,
    • J. Kretzschmar,
    • K. Kreutzfeldt,
    • P. Krieger,
    • K. Krizka,
    • K. Kroeninger,
    • H. Kroha,
    • J. Kroll,
    • J. Kroseberg,
    • J. Krstic,
    • U. Kruchonak,
    • H. Krüger,
    • N. Krumnack,
    • M. C. Kruse,
    • M. Kruskal,
    • T. Kubota,
    • H. Kucuk,
    • S. Kuday,
    • J. T. Kuechler,
    • S. Kuehn,
    • A. Kugel,
    • F. Kuger,
    • T. Kuhl,
    • V. Kukhtin,
    • R. Kukla,
    • Y. Kulchitsky,
    • S. Kuleshov,
    • Y. P. Kulinich,
    • M. Kuna,
    • T. Kunigo,
    • A. Kupco,
    • O. Kuprash,
    • H. Kurashige,
    • L. L. Kurchaninov,
    • Y. A. Kurochkin,
    • M. G. Kurth,
    • V. Kus,
    • E. S. Kuwertz,
    • M. Kuze,
    • J. Kvita,
    • T. Kwan,
    • D. Kyriazopoulos,
    • A. La Rosa,
    • J. L. La Rosa Navarro,
    • L. La Rotonda,
    • C. Lacasta,
    • F. Lacava,
    • J. Lacey,
    • H. Lacker,
    • D. Lacour,
    • E. Ladygin,
    • R. Lafaye,
    • B. Laforge,
    • T. Lagouri,
    • S. Lai,
    • S. Lammers,
    • W. Lampl,
    • E. Lançon,
    • U. Landgraf,
    • M. P. J. Landon,
    • M. C. Lanfermann,
    • V. S. Lang,
    • J. C. Lange,
    • A. J. Lankford,
    • F. Lanni,
    • K. Lantzsch,
    • A. Lanza,
    • A. Lapertosa,
    • S. Laplace,
    • J. F. Laporte,
    • T. Lari,
    • F. Lasagni Manghi,
    • M. Lassnig,
    • P. Laurelli,
    • W. Lavrijsen,
    • A. T. Law,
    • P. Laycock,
    • T. Lazovich,
    • M. Lazzaroni,
    • B. Le,
    • O. Le Dortz,
    • E. Le Guirriec,
    • E. P. Le Quilleuc,
    • M. LeBlanc,
    • T. LeCompte,
    • F. Ledroit-Guillon,
    • C. A. Lee,
    • S. C. Lee,
    • L. Lee,
    • B. Lefebvre,
    • G. Lefebvre,
    • M. Lefebvre,
    • F. Legger,
    • C. Leggett,
    • A. Lehan,
    • G. Lehmann Miotto,
    • X. Lei,
    • W. A. Leight,
    • M. A. L. Leite,
    • R. Leitner,
    • D. Lellouch,
    • B. Lemmer,
    • K. J. C. Leney,
    • T. Lenz,
    • B. Lenzi,
    • R. Leone,
    • S. Leone,
    • C. Leonidopoulos,
    • G. Lerner,
    • C. Leroy,
    • A. A. J. Lesage,
    • C. G. Lester,
    • M. Levchenko,
    • J. Levêque,
    • D. Levin,
    • L. J. Levinson,
    • M. Levy,
    • D. Lewis,
    • M. Leyton,
    • B. Li,
    • C. Li,
    • H. Li,
    • L. Li,
    • L. Li,
    • Q. Li,
    • S. Li,
    • X. Li,
    • Y. Li,
    • Z. Liang,
    • B. Liberti,
    • A. Liblong,
    • K. Lie,
    • J. Liebal,
    • W. Liebig,
    • A. Limosani,
    • S. C. Lin,
    • T. H. Lin,
    • B. E. Lindquist,
    • A. E. Lionti,
    • E. Lipeles,
    • A. Lipniacka,
    • M. Lisovyi,
    • T. M. Liss,
    • A. Lister,
    • A. M. Litke,
    • B. Liu,
    • H. Liu,
    • H. Liu,
    • J. Liu,
    • J. B. Liu,
    • K. Liu,
    • L. Liu,
    • M. Liu,
    • Y. L. Liu,
    • Y. Liu,
    • M. Livan,
    • A. Lleres,
    • J. Llorente Merino,
    • S. L. Lloyd,
    • C. Y. Lo,
    • F. Lo Sterzo,
    • E. M. Lobodzinska,
    • P. Loch,
    • F. K. Loebinger,
    • K. M. Loew,
    • A. Loginov,
    • T. Lohse,
    • K. Lohwasser,
    • M. Lokajicek,
    • B. A. Long,
    • J. D. Long,
    • R. E. Long,
    • L. Longo,
    • K. A. Looper,
    • J. A. Lopez,
    • D. Lopez Mateos,
    • I. Lopez Paz,
    • A. Lopez Solis,
    • J. Lorenz,
    • N. Lorenzo Martinez,
    • M. Losada,
    • P. J. Lösel,
    • X. Lou,
    • A. Lounis,
    • J. Love,
    • P. A. Love,
    • H. Lu,
    • N. Lu,
    • Y. J. Lu,
    • H. J. Lubatti,
    • C. Luci,
    • A. Lucotte,
    • C. Luedtke,
    • F. Luehring,
    • W. Lukas,
    • L. Luminari,
    • O. Lundberg,
    • B. Lund-Jensen,
    • P. M. Luzi,
    • D. Lynn,
    • R. Lysak,
    • E. Lytken,
    • V. Lyubushkin,
    • H. Ma,
    • L. L. Ma,
    • Y. Ma,
    • G. Maccarrone,
    • A. Macchiolo,
    • C. M. Macdonald,
    • B. Maček,
    • J. Machado Miguens,
    • D. Madaffari,
    • R. Madar,
    • H. J. Maddocks,
    • W. F. Mader,
    • A. Madsen,
    • J. Maeda,
    • S. Maeland,
    • T. Maeno,
    • A. Maevskiy,
    • E. Magradze,
    • J. Mahlstedt,
    • C. Maiani,
    • C. Maidantchik,
    • A. A. Maier,
    • T. Maier,
    • A. Maio,
    • S. Majewski,
    • Y. Makida,
    • N. Makovec,
    • B. Malaescu,
    • Pa. Malecki,
    • V. P. Maleev,
    • F. Malek,
    • U. Mallik,
    • D. Malon,
    • C. Malone,
    • S. Maltezos,
    • S. Malyukov,
    • J. Mamuzic,
    • G. Mancini,
    • L. Mandelli,
    • I. Mandić,
    • J. Maneira,
    • L. Manhaes de Andrade Filho,
    • J. Manjarres Ramos,
    • A. Mann,
    • A. Manousos,
    • B. Mansoulie,
    • J. D. Mansour,
    • R. Mantifel,
    • M. Mantoani,
    • S. Manzoni,
    • L. Mapelli,
    • G. Marceca,
    • L. March,
    • G. Marchiori,
    • M. Marcisovsky,
    • M. Marjanovic,
    • D. E. Marley,
    • F. Marroquim,
    • S. P. Marsden,
    • Z. Marshall,
    • M. U. F. Martensson,
    • S. Marti-Garcia,
    • C. B. Martin,
    • T. A. Martin,
    • V. J. Martin,
    • B. Martin dit Latour,
    • M. Martinez,
    • V. I. Martinez Outschoorn,
    • S. Martin-Haugh,
    • V. S. Martoiu,
    • A. C. Martyniuk,
    • A. Marzin,
    • L. Masetti,
    • T. Mashimo,
    • R. Mashinistov,
    • J. Masik,
    • A. L. Maslennikov,
    • L. Massa,
    • P. Mastrandrea,
    • A. Mastroberardino,
    • T. Masubuchi,
    • P. Mättig,
    • J. Maurer,
    • S. J. Maxfield,
    • D. A. Maximov,
    • R. Mazini,
    • I. Maznas,
    • S. M. Mazza,
    • N. C. Mc Fadden,
    • G. McGoldrick,
    • S. P. McKee,
    • A. McCarn,
    • R. L. McCarthy,
    • T. G. McCarthy,
    • L. I. McClymont,
    • E. F. McDonald,
    • J. A. Mcfayden,
    • G. Mchedlidze,
    • S. J. McMahon,
    • P. C. McNamara,
    • R. A. McPherson,
    • S. Meehan,
    • T. J. Megy,
    • S. Mehlhase,
    • A. Mehta,
    • T. Meideck,
    • K. Meier,
    • C. Meineck,
    • B. Meirose,
    • D. Melini,
    • B. R. Mellado Garcia,
    • M. Melo,
    • F. Meloni,
    • S. B. Menary,
    • L. Meng,
    • X. T. Meng,
    • A. Mengarelli,
    • S. Menke,
    • E. Meoni,
    • S. Mergelmeyer,
    • P. Mermod,
    • L. Merola,
    • C. Meroni,
    • F. S. Merritt,
    • A. Messina,
    • J. Metcalfe,
    • A. S. Mete,
    • C. Meyer,
    • J.-P. Meyer,
    • J. Meyer,
    • H. Meyer Zu Theenhausen,
    • F. Miano,
    • R. P. Middleton,
    • S. Miglioranzi,
    • L. Mijović,
    • G. Mikenberg,
    • M. Mikestikova,
    • M. Mikuž,
    • M. Milesi,
    • A. Milic,
    • D. W. Miller,
    • C. Mills,
    • A. Milov,
    • D. A. Milstead,
    • A. A. Minaenko,
    • Y. Minami,
    • I. A. Minashvili,
    • A. I. Mincer,
    • B. Mindur,
    • M. Mineev,
    • Y. Minegishi,
    • Y. Ming,
    • L. M. Mir,
    • K. P. Mistry,
    • T. Mitani,
    • J. Mitrevski,
    • V. A. Mitsou,
    • A. Miucci,
    • P. S. Miyagawa,
    • A. Mizukami,
    • J. U. Mjörnmark,
    • M. Mlynarikova,
    • T. Moa,
    • K. Mochizuki,
    • P. Mogg,
    • S. Mohapatra,
    • S. Molander,
    • R. Moles-Valls,
    • R. Monden,
    • M. C. Mondragon,
    • K. Mönig,
    • J. Monk,
    • E. Monnier,
    • A. Montalbano,
    • J. Montejo Berlingen,
    • F. Monticelli,
    • S. Monzani,
    • R. W. Moore,
    • N. Morange,
    • D. Moreno,
    • M. Moreno Llácer,
    • P. Morettini,
    • S. Morgenstern,
    • D. Mori,
    • T. Mori,
    • M. Morii,
    • M. Morinaga,
    • V. Morisbak,
    • A. K. Morley,
    • G. Mornacchi,
    • J. D. Morris,
    • L. Morvaj,
    • P. Moschovakos,
    • M. Mosidze,
    • H. J. Moss,
    • J. Moss,
    • K. Motohashi,
    • R. Mount,
    • E. Mountricha,
    • E. J. W. Moyse,
    • S. Muanza,
    • R. D. Mudd,
    • F. Mueller,
    • J. Mueller,
    • R. S. P. Mueller,
    • D. Muenstermann,
    • P. Mullen,
    • G. A. Mullier,
    • F. J. Munoz Sanchez,
    • W. J. Murray,
    • H. Musheghyan,
    • M. Muškinja,
    • A. G. Myagkov,
    • M. Myska,
    • B. P. Nachman,
    • O. Nackenhorst,
    • K. Nagai,
    • R. Nagai,
    • K. Nagano,
    • Y. Nagasaka,
    • K. Nagata,
    • M. Nagel,
    • E. Nagy,
    • A. M. Nairz,
    • Y. Nakahama,
    • K. Nakamura,
    • T. Nakamura,
    • I. Nakano,
    • R. F. Naranjo Garcia,
    • R. Narayan,
    • D. I. Narrias Villar,
    • I. Naryshkin,
    • T. Naumann,
    • G. Navarro,
    • R. Nayyar,
    • H. A. Neal,
    • P. Yu. Nechaeva,
    • T. J. Neep,
    • A. Negri,
    • M. Negrini,
    • S. Nektarijevic,
    • C. Nellist,
    • A. Nelson,
    • M. E. Nelson,
    • S. Nemecek,
    • P. Nemethy,
    • A. A. Nepomuceno,
    • M. Nessi,
    • M. S. Neubauer,
    • M. Neumann,
    • R. M. Neves,
    • P. R. Newman,
    • T. Y. Ng,
    • T. Nguyen Manh,
    • R. B. Nickerson,
    • R. Nicolaidou,
    • J. Nielsen,
    • V. Nikolaenko,
    • I. Nikolic-Audit,
    • K. Nikolopoulos,
    • J. K. Nilsen,
    • P. Nilsson,
    • Y. Ninomiya,
    • A. Nisati,
    • N. Nishu,
    • R. Nisius,
    • T. Nobe,
    • Y. Noguchi,
    • M. Nomachi,
    • I. Nomidis,
    • M. A. Nomura,
    • T. Nooney,
    • M. Nordberg,
    • N. Norjoharuddeen,
    • O. Novgorodova,
    • S. Nowak,
    • M. Nozaki,
    • L. Nozka,
    • K. Ntekas,
    • E. Nurse,
    • F. Nuti,
    • D. C. ONeil,
    • A. A. ORourke,
    • V. OShea,
    • F. G. Oakham,
    • H. Oberlack,
    • T. Obermann,
    • J. Ocariz,
    • A. Ochi,
    • I. Ochoa,
    • J. P. Ochoa-Ricoux,
    • S. Oda,
    • S. Odaka,
    • H. Ogren,
    • A. Oh,
    • S. H. Oh,
    • C. C. Ohm,
    • H. Ohman,
    • H. Oide,
    • H. Okawa,
    • Y. Okumura,
    • T. Okuyama,
    • A. Olariu,
    • L. F. Oleiro Seabra,
    • S. A. Olivares Pino,
    • D. Oliveira Damazio,
    • A. Olszewski,
    • J. Olszowska,
    • A. Onofre,
    • K. Onogi,
    • P. U. E. Onyisi,
    • M. J. Oreglia,
    • Y. Oren,
    • D. Orestano,
    • N. Orlando,
    • R. S. Orr,
    • B. Osculati,
    • R. Ospanov,
    • G. Otero y Garzon,
    • H. Otono,
    • M. Ouchrif,
    • F. Ould-Saada,
    • A. Ouraou,
    • K. P. Oussoren,
    • Q. Ouyang,
    • M. Owen,
    • R. E. Owen,
    • V. E. Ozcan,
    • N. Ozturk,
    • K. Pachal,
    • A. Pacheco Pages,
    • L. Pacheco Rodriguez,
    • C. Padilla Aranda,
    • S. Pagan Griso,
    • M. Paganini,
    • F. Paige,
    • P. Pais,
    • G. Palacino,
    • S. Palazzo,
    • S. Palestini,
    • M. Palka,
    • D. Pallin,
    • E. St. Panagiotopoulou,
    • I. Panagoulias,
    • C. E. Pandini,
    • J. G. Panduro Vazquez,
    • P. Pani,
    • S. Panitkin,
    • D. Pantea,
    • L. Paolozzi,
    • Th. D. Papadopoulou,
    • K. Papageorgiou,
    • A. Paramonov,
    • D. Paredes Hernandez,
    • A. J. Parker,
    • M. A. Parker,
    • K. A. Parker,
    • F. Parodi,
    • J. A. Parsons,
    • U. Parzefall,
    • V. R. Pascuzzi,
    • J. M. Pasner,
    • E. Pasqualucci,
    • S. Passaggio,
    • Fr. Pastore,
    • S. Pataraia,
    • J. R. Pater,
    • T. Pauly,
    • J. Pearce,
    • B. Pearson,
    • L. E. Pedersen,
    • S. Pedraza Lopez,
    • R. Pedro,
    • S. V. Peleganchuk,
    • O. Penc,
    • C. Peng,
    • H. Peng,
    • J. Penwell,
    • B. S. Peralva,
    • M. M. Perego,
    • D. V. Perepelitsa,
    • L. Perini,
    • H. Pernegger,
    • S. Perrella,
    • R. Peschke,
    • V. D. Peshekhonov,
    • K. Peters,
    • R. F. Y. Peters,
    • B. A. Petersen,
    • T. C. Petersen,
    • E. Petit,
    • A. Petridis,
    • C. Petridou,
    • P. Petroff,
    • E. Petrolo,
    • M. Petrov,
    • F. Petrucci,
    • N. E. Pettersson,
    • A. Peyaud,
    • R. Pezoa,
    • P. W. Phillips,
    • G. Piacquadio,
    • E. Pianori,
    • A. Picazio,
    • E. Piccaro,
    • M. A. Pickering,
    • R. Piegaia,
    • J. E. Pilcher,
    • A. D. Pilkington,
    • A. W. J. Pin,
    • M. Pinamonti,
    • J. L. Pinfold,
    • H. Pirumov,
    • M. Pitt,
    • L. Plazak,
    • M.-A. Pleier,
    • V. Pleskot,
    • E. Plotnikova,
    • D. Pluth,
    • P. Podberezko,
    • R. Poettgen,
    • L. Poggioli,
    • D. Pohl,
    • G. Polesello,
    • A. Poley,
    • A. Policicchio,
    • R. Polifka,
    • A. Polini,
    • C. S. Pollard,
    • V. Polychronakos,
    • K. Pommès,
    • D. Ponomarenko,
    • L. Pontecorvo,
    • B. G. Pope,
    • G. A. Popeneciu,
    • A. Poppleton,
    • S. Pospisil,
    • K. Potamianos,
    • I. N. Potrap,
    • C. J. Potter,
    • C. T. Potter,
    • G. Poulard,
    • J. Poveda,
    • M. E. Pozo Astigarraga,
    • P. Pralavorio,
    • A. Pranko,
    • S. Prell,
    • D. Price,
    • L. E. Price,
    • M. Primavera,
    • S. Prince,
    • N. Proklova,
    • K. Prokofiev,
    • F. Prokoshin,
    • S. Protopopescu,
    • J. Proudfoot,
    • M. Przybycien,
    • D. Puddu,
    • A. Puri,
    • P. Puzo,
    • J. Qian,
    • G. Qin,
    • Y. Qin,
    • A. Quadt,
    • W. B. Quayle,
    • M. Queitsch-Maitland,
    • D. Quilty,
    • S. Raddum,
    • V. Radeka,
    • V. Radescu,
    • S. K. Radhakrishnan,
    • P. Radloff,
    • P. Rados,
    • F. Ragusa,
    • G. Rahal,
    • J. A. Raine,
    • S. Rajagopalan,
    • C. Rangel-Smith,
    • M. G. Ratti,
    • D. M. Rauch,
    • F. Rauscher,
    • S. Rave,
    • T. Ravenscroft,
    • I. Ravinovich,
    • J. H. Rawling,
    • M. Raymond,
    • A. L. Read,
    • N. P. Readioff,
    • M. Reale,
    • D. M. Rebuzzi,
    • A. Redelbach,
    • G. Redlinger,
    • R. Reece,
    • R. G. Reed,
    • K. Reeves,
    • L. Rehnisch,
    • J. Reichert,
    • A. Reiss,
    • C. Rembser,
    • H. Ren,
    • M. Rescigno,
    • S. Resconi,
    • E. D. Resseguie,
    • S. Rettie,
    • E. Reynolds,
    • O. L. Rezanova,
    • P. Reznicek,
    • R. Rezvani,
    • R. Richter,
    • S. Richter,
    • E. Richter-Was,
    • O. Ricken,
    • M. Ridel,
    • P. Rieck,
    • C. J. Riegel,
    • J. Rieger,
    • O. Rifki,
    • M. Rijssenbeek,
    • A. Rimoldi,
    • M. Rimoldi,
    • L. Rinaldi,
    • B. Ristić,
    • E. Ritsch,
    • I. Riu,
    • F. Rizatdinova,
    • E. Rizvi,
    • C. Rizzi,
    • R. T. Roberts,
    • S. H. Robertson,
    • A. Robichaud-Veronneau,
    • D. Robinson,
    • J. E. M. Robinson,
    • A. Robson,
    • C. Roda,
    • Y. Rodina,
    • A. Rodriguez Perez,
    • D. Rodriguez Rodriguez,
    • S. Roe,
    • C. S. Rogan,
    • O. Røhne,
    • J. Roloff,
    • A. Romaniouk,
    • M. Romano,
    • S. M. Romano Saez,
    • E. Romero Adam,
    • N. Rompotis,
    • M. Ronzani,
    • L. Roos,
    • S. Rosati,
    • K. Rosbach,
    • P. Rose,
    • N.-A. Rosien,
    • V. Rossetti,
    • E. Rossi,
    • L. P. Rossi,
    • J. H. N. Rosten,
    • R. Rosten,
    • M. Rotaru,
    • I. Roth,
    • J. Rothberg,
    • D. Rousseau,
    • A. Rozanov,
    • Y. Rozen,
    • X. Ruan,
    • F. Rubbo,
    • F. Rühr,
    • A. Ruiz-Martinez,
    • Z. Rurikova,
    • N. A. Rusakovich,
    • A. Ruschke,
    • H. L. Russell,
    • J. P. Rutherfoord,
    • N. Ruthmann,
    • Y. F. Ryabov,
    • M. Rybar,
    • G. Rybkin,
    • S. Ryu,
    • A. Ryzhov,
    • G. F. Rzehorz,
    • A. F. Saavedra,
    • G. Sabato,
    • S. Sacerdoti,
    • H. F.-W. Sadrozinski,
    • R. Sadykov,
    • F. Safai Tehrani,
    • P. Saha,
    • M. Sahinsoy,
    • M. Saimpert,
    • M. Saito,
    • T. Saito,
    • H. Sakamoto,
    • Y. Sakurai,
    • G. Salamanna,
    • J. E. Salazar Loyola,
    • D. Salek,
    • P. H. Sales De Bruin,
    • D. Salihagic,
    • A. Salnikov,
    • J. Salt,
    • D. Salvatore,
    • F. Salvatore,
    • A. Salvucci,
    • A. Salzburger,
    • D. Sammel,
    • D. Sampsonidis,
    • J. Sánchez,
    • V. Sanchez Martinez,
    • A. Sanchez Pineda,
    • H. Sandaker,
    • R. L. Sandbach,
    • C. O. Sander,
    • M. Sandhoff,
    • C. Sandoval,
    • D. P. C. Sankey,
    • M. Sannino,
    • A. Sansoni,
    • C. Santoni,
    • R. Santonico,
    • H. Santos,
    • I. Santoyo Castillo,
    • K. Sapp,
    • A. Sapronov,
    • J. G. Saraiva,
    • B. Sarrazin,
    • O. Sasaki,
    • K. Sato,
    • E. Sauvan,
    • G. Savage,
    • P. Savard,
    • N. Savic,
    • C. Sawyer,
    • L. Sawyer,
    • J. Saxon,
    • C. Sbarra,
    • A. Sbrizzi,
    • T. Scanlon,
    • D. A. Scannicchio,
    • M. Scarcella,
    • V. Scarfone,
    • J. Schaarschmidt,
    • P. Schacht,
    • B. M. Schachtner,
    • D. Schaefer,
    • L. Schaefer,
    • R. Schaefer,
    • J. Schaeffer,
    • S. Schaepe,
    • S. Schaetzel,
    • U. Schäfer,
    • A. C. Schaffer,
    • D. Schaile,
    • R. D. Schamberger,
    • V. Scharf,
    • V. A. Schegelsky,
    • D. Scheirich,
    • M. Schernau,
    • C. Schiavi,
    • S. Schier,
    • L. K. Schildgen,
    • C. Schillo,
    • M. Schioppa,
    • S. Schlenker,
    • K. R. Schmidt-Sommerfeld,
    • K. Schmieden,
    • C. Schmitt,
    • S. Schmitt,
    • S. Schmitz,
    • U. Schnoor,
    • L. Schoeffel,
    • A. Schoening,
    • B. D. Schoenrock,
    • E. Schopf,
    • M. Schott,
    • J. F. P. Schouwenberg,
    • J. Schovancova,
    • S. Schramm,
    • N. Schuh,
    • A. Schulte,
    • M. J. Schultens,
    • H.-C. Schultz-Coulon,
    • H. Schulz,
    • M. Schumacher,
    • B. A. Schumm,
    • Ph. Schune,
    • A. Schwartzman,
    • T. A. Schwarz,
    • H. Schweiger,
    • Ph. Schwemling,
    • R. Schwienhorst,
    • J. Schwindling,
    • T. Schwindt,
    • A. Sciandra,
    • G. Sciolla,
    • F. Scuri,
    • F. Scutti,
    • J. Searcy,
    • P. Seema,
    • S. C. Seidel,
    • A. Seiden,
    • J. M. Seixas,
    • G. Sekhniaidze,
    • K. Sekhon,
    • S. J. Sekula,
    • N. Semprini-Cesari,
    • C. Serfon,
    • L. Serin,
    • L. Serkin,
    • M. Sessa,
    • R. Seuster,
    • H. Severini,
    • T. Sfiligoj,
    • F. Sforza,
    • A. Sfyrla,
    • E. Shabalina,
    • N. W. Shaikh,
    • L. Y. Shan,
    • R. Shang,
    • J. T. Shank,
    • M. Shapiro,
    • P. B. Shatalov,
    • K. Shaw,
    • S. M. Shaw,
    • A. Shcherbakova,
    • C. Y. Shehu,
    • Y. Shen,
    • P. Sherwood,
    • L. Shi,
    • S. Shimizu,
    • C. O. Shimmin,
    • M. Shimojima,
    • S. Shirabe,
    • M. Shiyakova,
    • J. Shlomi,
    • A. Shmeleva,
    • D. Shoaleh Saadi,
    • M. J. Shochet,
    • S. Shojaii,
    • D. R. Shope,
    • S. Shrestha,
    • E. Shulga,
    • M. A. Shupe,
    • P. Sicho,
    • A. M. Sickles,
    • P. E. Sidebo,
    • E. Sideras Haddad,
    • O. Sidiropoulou,
    • D. Sidorov,
    • A. Sidoti,
    • F. Siegert,
    • Dj. Sijacki,
    • J. Silva,
    • S. B. Silverstein,
    • V. Simak,
    • Lj. Simic,
    • S. Simion,
    • E. Simioni,
    • B. Simmons,
    • M. Simon,
    • P. Sinervo,
    • N. B. Sinev,
    • M. Sioli,
    • G. Siragusa,
    • I. Siral,
    • S. Yu. Sivoklokov,
    • J. Sjölin,
    • M. B. Skinner,
    • P. Skubic,
    • M. Slater,
    • T. Slavicek,
    • M. Slawinska,
    • K. Sliwa,
    • R. Slovak,
    • V. Smakhtin,
    • B. H. Smart,
    • J. Smiesko,
    • N. Smirnov,
    • S. Yu. Smirnov,
    • Y. Smirnov,
    • L. N. Smirnova,
    • O. Smirnova,
    • J. W. Smith,
    • M. N. K. Smith,
    • R. W. Smith,
    • M. Smizanska,
    • K. Smolek,
    • A. A. Snesarev,
    • I. M. Snyder,
    • S. Snyder,
    • R. Sobie,
    • F. Socher,
    • A. Soffer,
    • D. A. Soh,
    • G. Sokhrannyi,
    • C. A. Solans Sanchez,
    • M. Solar,
    • E. Yu. Soldatov,
    • U. Soldevila,
    • A. A. Solodkov,
    • A. Soloshenko,
    • O. V. Solovyanov,
    • V. Solovyev,
    • P. Sommer,
    • H. Son,
    • H. Y. Song,
    • A. Sopczak,
    • V. Sorin,
    • D. Sosa,
    • C. L. Sotiropoulou,
    • R. Soualah,
    • A. M. Soukharev,
    • D. South,
    • B. C. Sowden,
    • S. Spagnolo,
    • M. Spalla,
    • M. Spangenberg,
    • F. Spanò,
    • D. Sperlich,
    • F. Spettel,
    • T. M. Spieker,
    • R. Spighi,
    • G. Spigo,
    • L. A. Spiller,
    • M. Spousta,
    • R. D. St. Denis,
    • A. Stabile,
    • R. Stamen,
    • S. Stamm,
    • E. Stanecka,
    • R. W. Stanek,
    • C. Stanescu,
    • M. M. Stanitzki,
    • S. Stapnes,
    • E. A. Starchenko,
    • G. H. Stark,
    • J. Stark,
    • S. H. Stark,
    • P. Staroba,
    • P. Starovoitov,
    • S. Stärz,
    • R. Staszewski,
    • P. Steinberg,
    • B. Stelzer,
    • H. J. Stelzer,
    • O. Stelzer-Chilton,
    • H. Stenzel,
    • G. A. Stewart,
    • J. A. Stillings,
    • M. C. Stockton,
    • M. Stoebe,
    • G. Stoicea,
    • P. Stolte,
    • S. Stonjek,
    • A. R. Stradling,
    • A. Straessner,
    • M. E. Stramaglia,
    • J. Strandberg,
    • S. Strandberg,
    • A. Strandlie,
    • M. Strauss,
    • P. Strizenec,
    • R. Ströhmer,
    • D. M. Strom,
    • R. Stroynowski,
    • A. Strubig,
    • S. A. Stucci,
    • B. Stugu,
    • N. A. Styles,
    • D. Su,
    • J. Su,
    • S. Suchek,
    • Y. Sugaya,
    • M. Suk,
    • V. V. Sulin,
    • S. Sultansoy,
    • T. Sumida,
    • S. Sun,
    • X. Sun,
    • K. Suruliz,
    • C. J. E. Suster,
    • M. R. Sutton,
    • S. Suzuki,
    • M. Svatos,
    • M. Swiatlowski,
    • S. P. Swift,
    • A. Sydorenko,
    • I. Sykora,
    • T. Sykora,
    • D. Ta,
    • K. Tackmann,
    • J. Taenzer,
    • A. Taffard,
    • R. Tafirout,
    • N. Taiblum,
    • H. Takai,
    • R. Takashima,
    • T. Takeshita,
    • Y. Takubo,
    • M. Talby,
    • A. A. Talyshev,
    • J. Tanaka,
    • M. Tanaka,
    • R. Tanaka,
    • S. Tanaka,
    • R. Tanioka,
    • B. B. Tannenwald,
    • S. Tapia Araya,
    • S. Tapprogge,
    • S. Tarem,
    • G. F. Tartarelli,
    • P. Tas,
    • M. Tasevsky,
    • T. Tashiro,
    • E. Tassi,
    • A. Tavares Delgado,
    • Y. Tayalati,
    • A. C. Taylor,
    • G. N. Taylor,
    • P. T. E. Taylor,
    • W. Taylor,
    • P. Teixeira-Dias,
    • D. Temple,
    • H. Ten Kate,
    • P. K. Teng,
    • J. J. Teoh,
    • F. Tepel,
    • S. Terada,
    • K. Terashi,
    • J. Terron,
    • S. Terzo,
    • M. Testa,
    • R. J. Teuscher,
    • T. Theveneaux-Pelzer,
    • J. P. Thomas,
    • J. Thomas-Wilsker,
    • P. D. Thompson,
    • A. S. Thompson,
    • L. A. Thomsen,
    • E. Thomson,
    • M. J. Tibbetts,
    • R. E. Ticse Torres,
    • V. O. Tikhomirov,
    • Yu. A. Tikhonov,
    • S. Timoshenko,
    • P. Tipton,
    • S. Tisserant,
    • K. Todome,
    • S. Todorova-Nova,
    • J. Tojo,
    • S. Tokár,
    • K. Tokushuku,
    • E. Tolley,
    • L. Tomlinson,
    • M. Tomoto,
    • L. Tompkins,
    • K. Toms,
    • B. Tong,
    • P. Tornambe,
    • E. Torrence,
    • H. Torres,
    • E. Torró Pastor,
    • J. Toth,
    • F. Touchard,
    • D. R. Tovey,
    • C. J. Treado,
    • T. Trefzger,
    • A. Tricoli,
    • I. M. Trigger,
    • S. Trincaz-Duvoid,
    • M. F. Tripiana,
    • W. Trischuk,
    • B. Trocmé,
    • A. Trofymov,
    • C. Troncon,
    • M. Trottier-McDonald,
    • M. Trovatelli,
    • L. Truong,
    • M. Trzebinski,
    • A. Trzupek,
    • K. W. Tsang,
    • J. C.-L. Tseng,
    • P. V. Tsiareshka,
    • G. Tsipolitis,
    • N. Tsirintanis,
    • S. Tsiskaridze,
    • V. Tsiskaridze,
    • E. G. Tskhadadze,
    • K. M. Tsui,
    • I. I. Tsukerman,
    • V. Tsulaia,
    • S. Tsuno,
    • D. Tsybychev,
    • Y. Tu,
    • A. Tudorache,
    • V. Tudorache,
    • T. T. Tulbure,
    • A. N. Tuna,
    • S. A. Tupputi,
    • S. Turchikhin,
    • D. Turgeman,
    • I. Turk Cakir,
    • R. Turra,
    • P. M. Tuts,
    • G. Ucchielli,
    • I. Ueda,
    • M. Ughetto,
    • F. Ukegawa,
    • G. Unal,
    • A. Undrus,
    • G. Unel,
    • F. C. Ungaro,
    • Y. Unno,
    • C. Unverdorben,
    • J. Urban,
    • P. Urquijo,
    • P. Urrejola,
    • G. Usai,
    • J. Usui,
    • L. Vacavant,
    • V. Vacek,
    • B. Vachon,
    • C. Valderanis,
    • E. Valdes Santurio,
    • N. Valencic,
    • S. Valentinetti,
    • A. Valero,
    • L. Valéry,
    • S. Valkar,
    • A. Vallier,
    • J. A. Valls Ferrer,
    • W. Van Den Wollenberg,
    • H. van der Graaf,
    • N. van Eldik,
    • P. van Gemmeren,
    • J. Van Nieuwkoop,
    • I. van Vulpen,
    • M. C. van Woerden,
    • M. Vanadia,
    • W. Vandelli,
    • R. Vanguri,
    • A. Vaniachine,
    • P. Vankov,
    • G. Vardanyan,
    • R. Vari,
    • E. W. Varnes,
    • C. Varni,
    • T. Varol,
    • D. Varouchas,
    • A. Vartapetian,
    • K. E. Varvell,
    • J. G. Vasquez,
    • G. A. Vasquez,
    • F. Vazeille,
    • T. Vazquez Schroeder,
    • J. Veatch,
    • V. Veeraraghavan,
    • L. M. Veloce,
    • F. Veloso,
    • S. Veneziano,
    • A. Ventura,
    • M. Venturi,
    • N. Venturi,
    • A. Venturini,
    • V. Vercesi,
    • M. Verducci,
    • W. Verkerke,
    • J. C. Vermeulen,
    • M. C. Vetterli,
    • N. Viaux Maira,
    • O. Viazlo,
    • I. Vichou,
    • T. Vickey,
    • O. E. Vickey Boeriu,
    • G. H. A. Viehhauser,
    • S. Viel,
    • L. Vigani,
    • M. Villa,
    • M. Villaplana Perez,
    • E. Vilucchi,
    • M. G. Vincter,
    • V. B. Vinogradov,
    • A. Vishwakarma,
    • C. Vittori,
    • I. Vivarelli,
    • S. Vlachos,
    • M. Vlasak,
    • M. Vogel,
    • P. Vokac,
    • G. Volpi,
    • M. Volpi,
    • H. von der Schmitt,
    • E. von Toerne,
    • V. Vorobel,
    • K. Vorobev,
    • M. Vos,
    • R. Voss,
    • J. H. Vossebeld,
    • N. Vranjes,
    • M. Vranjes Milosavljevic,
    • V. Vrba,
    • M. Vreeswijk,
    • R. Vuillermet,
    • I. Vukotic,
    • P. Wagner,
    • W. Wagner,
    • H. Wahlberg,
    • S. Wahrmund,
    • J. Wakabayashi,
    • J. Walder,
    • R. Walker,
    • W. Walkowiak,
    • V. Wallangen,
    • C. Wang,
    • C. Wang,
    • F. Wang,
    • H. Wang,
    • H. Wang,
    • J. Wang,
    • J. Wang,
    • Q. Wang,
    • R. Wang,
    • S. M. Wang,
    • T. Wang,
    • W. Wang,
    • W. Wang,
    • Z. Wang,
    • C. Wanotayaroj,
    • A. Warburton,
    • C. P. Ward,
    • D. R. Wardrope,
    • A. Washbrook,
    • P. M. Watkins,
    • A. T. Watson,
    • M. F. Watson,
    • G. Watts,
    • S. Watts,
    • B. M. Waugh,
    • A. F. Webb,
    • S. Webb,
    • M. S. Weber,
    • S. W. Weber,
    • S. A. Weber,
    • J. S. Webster,
    • A. R. Weidberg,
    • B. Weinert,
    • J. Weingarten,
    • C. Weiser,
    • H. Weits,
    • P. S. Wells,
    • T. Wenaus,
    • T. Wengler,
    • S. Wenig,
    • N. Wermes,
    • M. D. Werner,
    • P. Werner,
    • M. Wessels,
    • K. Whalen,
    • N. L. Whallon,
    • A. M. Wharton,
    • A. White,
    • M. J. White,
    • R. White,
    • D. Whiteson,
    • F. J. Wickens,
    • W. Wiedenmann,
    • M. Wielers,
    • C. Wiglesworth,
    • L. A. M. Wiik-Fuchs,
    • A. Wildauer,
    • F. Wilk,
    • H. G. Wilkens,
    • H. H. Williams,
    • S. Williams,
    • C. Willis,
    • S. Willocq,
    • J. A. Wilson,
    • I. Wingerter-Seez,
    • F. Winklmeier,
    • O. J. Winston,
    • B. T. Winter,
    • M. Wittgen,
    • M. Wobisch,
    • T. M. H. Wolf,
    • R. Wolff,
    • M. W. Wolter,
    • H. Wolters,
    • S. D. Worm,
    • B. K. Wosiek,
    • J. Wotschack,
    • M. J. Woudstra,
    • K. W. Wozniak,
    • M. Wu,
    • S. L. Wu,
    • X. Wu,
    • Y. Wu,
    • T. R. Wyatt,
    • B. M. Wynne,
    • S. Xella,
    • Z. Xi,
    • L. Xia,
    • D. Xu,
    • L. Xu,
    • B. Yabsley,
    • S. Yacoob,
    • D. Yamaguchi,
    • Y. Yamaguchi,
    • A. Yamamoto,
    • S. Yamamoto,
    • T. Yamanaka,
    • K. Yamauchi,
    • Y. Yamazaki,
    • Z. Yan,
    • H. Yang,
    • H. Yang,
    • Y. Yang,
    • Z. Yang,
    • W.-M. Yao,
    • Y. C. Yap,
    • Y. Yasu,
    • E. Yatsenko,
    • K. H. Yau Wong,
    • J. Ye,
    • S. Ye,
    • I. Yeletskikh,
    • E. Yigitbasi,
    • E. Yildirim,
    • K. Yorita,
    • K. Yoshihara,
    • C. Young,
    • C. J. S. Young,
    • S. Youssef,
    • D. R. Yu,
    • J. Yu,
    • J. Yu,
    • L. Yuan,
    • S. P. Y. Yuen,
    • I. Yusuff,
    • B. Zabinski,
    • G. Zacharis,
    • R. Zaidan,
    • A. M. Zaitsev,
    • N. Zakharchuk,
    • J. Zalieckas,
    • A. Zaman,
    • S. Zambito,
    • D. Zanzi,
    • C. Zeitnitz,
    • M. Zeman,
    • A. Zemla,
    • J. C. Zeng,
    • Q. Zeng,
    • O. Zenin,
    • T. Ženiš,
    • D. Zerwas,
    • D. Zhang,
    • F. Zhang,
    • G. Zhang,
    • H. Zhang,
    • J. Zhang,
    • L. Zhang,
    • L. Zhang,
    • M. Zhang,
    • R. Zhang,
    • R. Zhang,
    • X. Zhang,
    • Y. Zhang,
    • Z. Zhang,
    • X. Zhao,
    • Y. Zhao,
    • Z. Zhao,
    • A. Zhemchugov,
    • J. Zhong,
    • B. Zhou,
    • C. Zhou,
    • L. Zhou,
    • M. Zhou,
    • M. Zhou,
    • N. Zhou,
    • C. G. Zhu,
    • H. Zhu,
    • J. Zhu,
    • Y. Zhu,
    • X. Zhuang,
    • K. Zhukov,
    • A. Zibell,
    • D. Zieminska,
    • N. I. Zimine,
    • C. Zimmermann,
    • S. Zimmermann,
    • Z. Zinonos,
    • M. Zinser,
    • M. Ziolkowski,
    • L. Živković,
    • G. Zobernig,
    • A. Zoccoli,
    • R. Zou,
    • M. zur Nedden &
    • L. Zwalinski

Contributions

All authors have contributed to the publication, being variously involved in the design and the construction of the detectors, in writing software, calibrating subsystems, operating the detectors and acquiring data, and finally analysing the processed data. The ATLAS Collaboration members discussed and approved the scientific results. The manuscript was prepared by a subgroup of authors appointed by the collaboration and subject to an internal collaboration-wide review process. All authors reviewed and approved the final version of the manuscript.

Competing financial interests

The authors declare no competing financial interests.

Corresponding author

Correspondence to:

Author details

    Additional data