Dec 2 – 6, 2024
Europe/Zurich timezone

Background processes in Higgs decay to Z gamma

Dec 4, 2024, 4:45 PM
15m
Urška 1 (Exhibition and Convention center)

Urška 1

Exhibition and Convention center

Dunajska cesta 18, 1000 Ljubljana, Slovenia
Parallel Session Talk Parallel track Collider 2

Speaker

Aliaksei Kachanovich (ULB)

Description

In measurements by the ATLAS and CMS Collaborations, the number of events for Higgs decay into a Z boson and photon is 2.2 $\pm$ 0.7 times higher than predicted by the Standard Model. For the $H \to Z \gamma$ process, this decay is reconstructed from $H \to \ell \ell \gamma$, where $\ell = e, \, \mu$. In our work, we aim to resolve this anomaly by exploring potential additional background contributions to $H \to \ell \ell \gamma$ from various subprocesses within and beyond the Standard Model.

Authors

Aliaksei Kachanovich (ULB) Mr Jean Kimus (ULB) Michel Tytgat Steven Lowette (Vrije Universiteit Brussel (BE))

Presentation materials