An improved ATLAS measurement of the W boson mass is in line with the Standard Model of particle physics

The ATLAS collaboration at CERN welcomes a new management team at its helm. Spokesperson Andreas Hoecker (CERN) will continue to steer the experiment until February 2025

Precise knowledge of luminosity is crucial for both searches for new phenomena and precision measurements of known Standard Model processes

In their first Run 3 results, the ATLAS collaboration measured two Standard Model processes: the production of Z bosons and top-quark pairs

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