J. A. Colorado-Caicedo ; E. De La Cruz-Burelo

2023
CINVESTAV-IPN Mexico City

Abstract: In 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.

Note: Presented on 04 10 2023
Note: MSc