Speaker: Mateusz Dyndał (AGH, CERN)

Title: “Searches for H→ℓℓγ decays with the ATLAS detector”

Abstract:
The seminar presents ATLAS results on searches for rare decays of the Higgs boson into a lepton pair and a photon (H→ℓℓγ). In such decays the leptons can be produced predominantly via an intermediate Z boson (H→Zγ→ℓℓγ) or a virtual photon (H→γ*γ→ℓℓγ). ATLAS targeted both decay chains with two dedicated analyses, which are reported. All results are based on the full Run-2 dataset.