Experimental particle physics

Experimental particle physics is the practical investigation of the fundamental components of matter and radiation. A crucial tool in the arsenal of the experimental particle physicist is the particle accelerator. The fundamental particles that make up matter can briefly be revealed when matter collides together at speeds close to that of light.

Latest Research and Reviews

  • Research |

    Quark–antiquark annihilation measurements provide a precise determination of the ratio of down and up antiquarks within protons as a function of momentum, which confirms the asymmetry between the abundance of down and up antiquarks.

    • J. Dove
    • , B. Kerns
    •  & Z. Ye
    Nature 590, 561-565
  • Research |

    A quantum enhanced search for dark matter that uses vacuum squeezing to overcome the quantum noise limit finds no evidence of dark matter axions in a well motivated mass range.

    • K. M. Backes
    • , D. A. Palken
    •  & H. Wang
    Nature 590, 238-242
  • Research
    | Open Access

    Laser wakefield accelerators are compact sources of ultra-relativistic electrons which are highly sensitive to many control parameters. Here the authors present an automated machine learning based method for the efficient multi-dimensional optimization of these plasma-based particle accelerators.

    • R. J. Shalloo
    • , S. J. D. Dann
    •  & M. J. V. Streeter
  • Research
    | Open Access

    Correlations in momentum space between hadrons created by ultrarelativistic proton–proton collisions at the CERN Large Hadron Collider provide insights into the strong interaction, particularly the short-range dynamics of hyperons—baryons that contain strange quarks.

    • S. Acharya
    • , D. Adamová
    •  & N. Zurlo
    Nature 588, 232-238

News and Comment

  • Comments & Opinion |

    Muon colliders offer enormous potential for the exploration of the particle physics frontier but are challenging to realize. A new international collaboration is forming to make such a muon collider a reality.

    • K. R. Long
    • , D. Lucchesi
    •  & V. Shiltsev
  • Editorial |

    Over a century after its discovery, the proton still keeps physicists busy understanding its basic properties, but a new generation of experiments may help finally nail down its radius, stability and the origin of its spin.

  • Editorial |

    As the gravitational wave detector KAGRA goes online and the Hyper-Kamiokande neutrino detector upgrade is approved, we look at a number of upcoming big science projects in Japan.

  • Research Highlights |

    Although the ultimate fate of the the International Linear Collider, a future 250 GeV linear accelerator based on superconducting radiofrequency technology, is yet to be decided, research and development efforts are proceeding undeterred.

    • Iulia Georgescu