Lepton Photon 2021

ATLAS sees a difference between beauty and charm decays of the Higgs boson

Physicists from the ATLAS Collaboration have combined two measurements of the interaction strength of the Higgs boson with two different pairs of quarks. This allows physicists to test a hypothesis that the Higgs boson interacts with charm quarks (which are second-generation quarks) in the same way it interacts with beauty quarks (third-generation quarks).

1 February 2022

ATLAS gives new insight into the internal structure of the proton

The ATLAS Collaboration has just released a new paper combining LHC and HERA data to determine Parton Distribution Functions (PDFs), which describe what fraction of a proton’s momentum is taken by its constituent quarks and gluons. 

12 January 2022

Discovery channels join forces for detailed investigation of the Higgs boson

The ATLAS Collaboration has released updated measurements of the Higgs boson properties using the full LHC Run-2 dataset (recorded 2015-2018).

11 January 2022

Summary of new ATLAS results from Lepton Photon 2021

The 30th International Symposium on Lepton Photon Interactions at High Energies (Lepton Photon 2021) kicks off today. Explore the ATLAS results that will be presented.

10 January 2022