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The study of atomic nuclei is by now a very active and developed field, with both fundamental and technological implications. Its more fundamental spin-off, particle physics, while constantly refining the impressive building of the Standard Model, is trying to come to grips with mysteries like dark matter or neutrino masses. Within this page, we will highlight our latest most interesting papers within these areas.
The tension between measured W mass and its Standard Model prediction might arise from uncertainties in the hadronic contribution, and the same is true for the muon g − 2. Here, the authors show that such a common origin for the two anomalies is unlikely, while a model involving leptoquarks might explain them both.
Haloscopes aim at detecting axions by converting them into photons using high-quality resonant cavities, where the cavity resonance should be tuned with the unknown axion mass. Here, the authors improve exclusion limits using four phase-matched resonant cavities and a fast frequency scanning technique.
One of the possible events signaling a neutrinoless double beta decay is a Xe atom decaying into a Ba ion and two electrons. Aiming at the realisation of a detector for such a process, the authors show that Ba ions can be efficiently trapped (chelated) in vacuum by an organic molecule layer on a surface.
The fusion reaction involving proton (p) and boron (11B) has unique advantages over deuterium-tritium (DT) fusion in terms of number of neutrons generated and availability of the fuel components. Here the authors demonstrate the (p,11B) fusion reaction in a magnetically confined plasma at the Large Helical Device.
Muonium is a hydrogen like bound system with a positive muon and an electron. Here the authors measure the Lamb shift and frequency of the transition from 2S1/2, F = 0 state to 2P1/2, F = 1 state in muonium atom and the hyperfine structure of the 2S level.
The existence and properties of tetraquark states with two heavy quarks and two light antiquarks have been widely debated. Here, the authors use a unitarized model to study the properties of an exotic narrow state compatible with a doubly charmed tetraquark.
The question of what axion mass would give rise to the observed dark matter abundance requires proper modelling of non-linear dynamics of the axion field in the early Universe. Here, the authors use adaptive mesh refinement simulations to predict a mass in the range in the range (40,180) microelectronvolts.
Direct dark matter searches need to take into account whether the total observation time is lower than the characteristic coherence time of the DM field. Analysing this generally overlooked scenario, here the authors quantify the impact on DM limits of the stochastic nature of the virialised ultralight field.
Tensor network simulations of lattice gauge theories may overcome the limitations of the Monte Carlo approach, but results have been limited to 1+1 and 2+1 dimensions so far. Here, the authors report a tree-tensor-based numerical study of a 3+1d truncated U(1) lattice gauge theory with fermionic matter.
The influence of contaminants is one of the factors hindering self-sustained thermonuclear burn in inertial confinement fusion. Here, the authors present evidence, through simulations and experiments, that contaminants do not fully reach thermal equilibrium, and thus their amount is usually underestimated.
Second order effects can play an important role in highlighting nuclear structure properties. Here, the authors show how the second-order nuclear transitions in the form of double-gamma decay in 137Ba help understanding atomic nuclei.
Triuranium disilicide fuel and silicon carbide cladding system is of importance for accident tolerance fuel initiative. Here the authors discuss the role of interface interaction between the U3Si2 fuel and SiC cladding in their use as an advanced concept in light water reactors.
Inspection and authentication of warheads is important for nuclear safety and security. Here the authors report experimental scheme for the verification of nuclear warheads using the neutron resonance transmission analysis of a reference and candidate objects while preserving the sensitive information.
Studying nuclear reactions in an astrophysical plasma environment is challenging but laboratory experiments can mimic such extreme conditions. Here the authors discuss the potential use of intense laser-produced dense plasma to find the rates of nuclear reactions in plasma-screened conditions.
Nuclear reactors can be used for energy generation or for dangerous weapons and therefore their monitoring is crucial. Here the authors discuss detecting antineutrino from a nuclear reactor and use it for nuclear safeguards in a diversion scenario.
Octupole deformation in nuclei is important to understand nuclear structure and electric dipole moments of heavy atoms. Here the authors measure energies of excited quantum states in radon isotopes and find that these isotopes do not provide favourable conditions in the search for CP-violation.
Symmetry breaking is an important process in fundamental understanding of matter and dark matter. Here the authors discuss an experimental bound on an exotic parity odd spin- and velocity-dependent interaction between electron and nucleon by using a sensitive spin-exchange relaxation-free atomic magnetometer.
Nuclear power reactors need to be monitored for safety and security while in operation. Here the authors discuss monitoring and safeguarding research reactors and small modular reactors using detection of neutrons up to a hundred meters away from the reactor shielding.
Magic numbers are associated with the stability of atomic nuclei. Here, the authors analyse the proton radii, binding energies and electric quadrupole transition rates of neutron-rich carbon isotopes at proton number six and use nuclear structure models to support the magic number Z = 6.