Heidelberg 2022 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 91: Higgs Boson: Rare Decays

T 91.1: Vortrag

Donnerstag, 24. März 2022, 16:15–16:30, T-H22

Search for the Higgs Boson decay to a Z boson and a photon — •Ming-Yan Lee — RWTH III. Physikalisches Institut A, Aachen, Germany

The results of the search for the Higgs boson decays to Zγ will be presented. In the search for this rare Higgs boson decay, the leptonic channel is most promising as it has relatively low background and can be fully reconstructed in the CMS detector. A few analysis techniques such as multivariate analysis methods, kinematic fit and final state radiation recovery are introduced to improve the sensitivity. The combination of the Run 2 data results in an observed (expected) upper limit on the signal strength of 4.1 (1.8) at 95% confidence level.