Speaker
Arisa Wada
(Nagoya University)
Description
The Higgs boson coupling to muons has not yet been observed, making its measurement an important target in studying the Higgs sector. The decay of the Higgs boson into a muon pair is a rare process, predicted by the Standard Model with a branching ratio of approximately 0.02%. The ATLAS experiment aims to improve the sensitivity of this search during Run 3. One of the key factors affecting the sensitivity is the resolution of the di-muon invariant mass. Previous studies have shown that incorporating photons emitted via Final State Radiation (FSR) into the invariant mass reconstruction improves the resolution. In this study, we evaluate the impact of FSR photon correction on the mass resolution using Z -> µµ samples in partial Run 3 data.
