ATLAS

ATLAS is one of two general-purpose detectors at the Large Hadron Collider (LHC). It investigates a wide range of physics, from the search for the Higgs boson to extra dimensions and particles that could make up dark matter. The articles below relate to the ATLAS experiment.

181 results

LHC experiments see first evidence of a rare Higgs boson decay

The ATLAS and CMS collaborations have joined forces to establish the first evidence of the rare decay of the Higgs boson into a Z boson and a photon

News
Physics
26 May, 2023

Probing fundamental symmetries of nature with the Higgs boson

The ATLAS collaboration tested Higgs-boson interactions with the carriers of the weak force, looking for signs of charge-parity symmetry violation

News
Physics
21 April, 2023

ATLAS and CMS observe simultaneous production of four top quarks

The ATLAS and CMS collaborations have both observed the simultaneous production of four top quarks, a rare phenomenon that could hold the key to physics beyond the Standard Model

News
Physics
24 March, 2023

Improved ATLAS result weighs in on W boson

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

Press release
Physics
23 March, 2023
Physics
Press release
23 March, 2023

New ATLAS management team takes the helm

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

News
Experiments
09 March, 2023
Experiments
News
09 March, 2023

ATLAS delivers most precise luminosity measurement at the LHC

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

News
Physics
24 January, 2023

ATLAS moves into top gear for Run 3

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

News
Physics
16 December, 2022
Physics
News
16 December, 2022

First lead-ion collisions in the LHC at record energy

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.

News
Experiments
23 November, 2022
Experiments
News
23 November, 2022

ATLAS measures Higgs boson’s decay width

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

News
Physics
18 November, 2022
Physics
News
18 November, 2022

ATLAS measures joint polarisation of carriers of the weak force

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

News
Physics
14 July, 2022

Exceptional ATLAS collaborators honoured at the 2022 Outstanding Achievement Awards

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

News
Experiments
20 July, 2022