I am a member of ATLAS working on Higgs to two Z bosons to 4 leptons, especially on Higgs decay width constraints and effective field theory interpretation of this channel. Additionally, muon isolation, and pileup removal techniques are also covered.
Recently, in 2022 Nov, we found evidence of the off-shell Higgs at 3.2 sigmas and constrained the Higgs decay width as 4.6 +/- 2.6 MeV. Here is the link to the paper: https://cds.cern.ch/record/2842520
Research interests
Higgs particle