000003678 001__ 3678
000003678 005__ 20230704090148.0
000003678 037__ $$aBELLE2-MTHESIS-2023-033
000003678 041__ $$aspa
000003678 100__ $$aMarcela Garcia Hernandez
000003678 245__ $$aStudy of the lepton flavor violating decay τ → μγ at the Belle II experiment.
000003678 260__ $$aMexico city$$bCinvestav-IPN$$c2018
000003678 300__ $$a106
000003678 500__ $$aPresented on 31 11 2018
000003678 502__ $$aMSc$$bMexico city, Cinvestav-IPN$$c2018
000003678 520__ $$aIn this work, we study the variables that allow us to discriminate among the possible background sources of the τ → μγ decay in the Belle II experiment. The τ → μγ is a lepton flavor violating decay, and therefore, it is a candidate for the search for new physics beyond the Standard Model of Particles Physics. Moreover, the study of the τ → μγ decay is important for future data analysis in the Belle II experiment. To perform this analysis, we reviewed the physical variables which help to discriminate between the signal and background simulated samples. Different selection requirements were applied to the generic backgrounds of the experiment and to the specific backgrounds of the τ → μγ channel to obtain a background-free signal region, thus estimating an upper bound for its branching ratio assuming an integrated luminosity of 1 ab^{−1}. This work sets the grounds for a candidate selection optimization in order to increase the reconstruction efficiency of the τ → μγ decay.
000003678 700__ $$aIvan Heredia De La Cruz$$edir.
000003678 8560_ $$fmgarciah@post.kek.jp
000003678 8564_ $$uhttps://docs.belle2.org/record/3678/files/BELLE2-MTHESIS-2023-033.pdf
000003678 980__ $$aTHESIS