PoS - Proceedings of Science
Volume 385 - 10th International Workshop on Charm Physics (CHARM2020) - Parallel programme
First Results and Prospects for Tau Lepton Physics at Belle II
T. Kraetzschmar* and  On behalf of the BELLE II collaboration
Full text: pdf
Pre-published on: November 08, 2021
Published on: November 10, 2021
Belle II has a broad $\tau$ physics program, in particular in searches for lepton flavour and lepton number violations. Belle~II profits from the relatively large $\tau$-pair production rate in the low background environment of $e^+e^-$ -collisions at 10.58~GeV.
Up to mid-2021 Belle~II collected a sample corresponding to $214~\text{fb}^{-1}$ of data.
We present a first measurement of the $\tau$ mass, the prospects for the $\tau$-lifetime measurement, and review the overall $\tau$ lepton physics program of Belle~II.
DOI: https://doi.org/10.22323/1.385.0042
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