On Friday, 18 November, a test using collisions of lead ions was carried out in the LHC and provided an opportunity for the experiments to validate the new detectors and new data-processing systems ahead of next year’s lead-lead physics run.

The decay width is linked to the particle’s lifetime and if found to deviate from its predicted value could indicate the presence of new physics

Joint-polarisation measurements of the W and Z bosons provide new opportunities to look for physics beyond the Standard Model

The ATLAS collaboration held its sixth Outstanding Achievement Awards ceremony at CERN on 23 June 2022

The ATLAS and CMS collaborations have searched for matter–antimatter asymmetry in the interaction between the Higgs boson and the tau lepton

It was just a few short weeks in mid-2012, but they were so intense that it felt like years. As 4 July drew near, the ATLAS and CMS experiments could sense that they were homing in on something big.

The collaborations have used the largest samples of proton–proton collision data recorded so far by the experiments to study the unique particle in unprecedented detail

The Large Hadron Collider is ready to once again start delivering proton collisions to experiments, this time at an unprecedented energy of 13.6 TeV, marking the start of the accelerator’s third run of data taking for physics

The discovery of the Higgs boson at the Large Hadron Collider and the progress made since then, have allowed physicists to make tremendous steps forward in our understanding of the universe

The Vega supercomputer in Slovenia is the most recent HPC centre to process ATLAS experimental data