000002419 001__ 2419
000002419 005__ 20210611102105.0
000002419 037__ $$aBELLE2-MTHESIS-2021-007
000002419 041__ $$aeng
000002419 100__ $$aZuzana Gruberova
000002419 245__ $$aStudy of the τ lepton decays at the Belle II experiment
000002419 260__ $$aPrague$$bCharles University$$c2021
000002419 300__ $$a101
000002419 500__ $$aPresented on 22 06 2021
000002419 502__ $$aMSc$$bPrague, Charles University$$c2021
000002419 520__ $$aThis master thesis describes the measurement of the π0 reconstruction efficiency correction using τ-pair events from the Belle II experiment. The review part of the thesis begins with an overview of the Standard Model and the Belle II experiment, its detector system and the simulation software. This is followed by the description the τ-pair events and the method used for measuring the π0 reconstruction efficiency correction. The central part focuses on the event selection and the extraction of the signal yields. The results present the measured values of the average and momentum dependent π0 reconstruction efficiency correction, an improved π0 selection optimized for τ-lepton analyses, and a dedicated study on photon timing selection requirements.
000002419 700__ $$aZdenek Dolezal$$edir.
000002419 700__ $$aPetar Rados$$edir.
000002419 700__ $$aAmi Rostomyan$$edir.
000002419 8560_ $$fzuzana.gruberova@matfyz.cz
000002419 8564_ $$uhttps://docs.belle2.org/record/2419/files/BELLE2-MTHESIS-2021-007.pdf
000002419 8564_ $$uhttps://docs.belle2.org/record/2419/files/%CF%80%E2%81%B0%20reconstruction%20efficiency%20correction.pdf$$yAdditional material to the thesis BELLE2-MTHESIS-2021-007$$zThe file includes the numerical values of the π⁰ reconstruction efficiency correction.
000002419 980__ $$aTHESIS