000003572 001__ 3572
000003572 005__ 20230512165933.0
000003572 037__ $$aBELLE2-MTHESIS-2023-007
000003572 041__ $$aspa
000003572 100__ $$aJ. A. Colorado-Caicedo
000003572 245__ $$aMeasurement of the mass of the tau lepton in semi-invisible final states in the Belle II collaboration
000003572 260__ $$aMexico City$$bCINVESTAV-IPN$$c2023
000003572 300__ $$a67
000003572 500__ $$aPresented on 04 10 2023
000003572 502__ $$aMSc$$bMexico City, CINVESTAV-IPN$$c2023
000003572 520__ $$aIn this thesis, the mass of the tau lepton is determined by comparing three methods for decays with semi-invisible final states. The measurement was performed for the decay $\tau\pi\nu$ (signal). It is obtained that the best result was provided by the method $M_{min}$ for a mass of the tau lepton of m = $1777.06 \pm 0.44$ MeV. The measurement was completed using official Monte Carlo data from the Belle II collaboration in the MC13a campaign ended in 2020.
000003572 700__ $$aE. De La Cruz-Burelo$$edir.
000003572 8560_ $$fjohan.colorado@cinvestav.mx
000003572 8564_ $$uhttps://docs.belle2.org/record/3572/files/BELLE2-MTHESIS-2023-007.pdf
000003572 980__ $$aTHESIS