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))