PoS - Proceedings of Science
Volume 385 - 10th International Workshop on Charm Physics (CHARM2020) - Parallel programme
Tau Physics prospects for Belle-II
T. Kraetzschmar
Full text: Not available
Abstract
The Belle~II experiment is a substantial upgrade of the Belle detector and will operate at the SuperKEKB energy-asymmetric $e^+e^-$-collider. The target luminosity of the machine is $6~\times~10^{35}~\text{cm}^{2}\text{s}^{-1}$ and the Belle~II experiment aims to record $50~\text{ab}^{-1}$ of data, a factor of 50 more than its predecessor. From February to July 2018, the machine has completed a commissioning run and main operation of SuperKEKB has started in March 2019. Belle II has a broad $\tau$ physics program, in particular in searches for lepton flavour and lepton number violations, benefiting from the large cross section of the pair wise $\tau$ lepton production in $e^+e^-$ -collisions. We expect that after 5 years of data taking, Belle~II will be able to reduce the upper limits on lepton flavour and lepton number violating $\tau$ decays by orders of magnitude. Any experimental observation of lepton flavour or lepton number violations in $\tau$ decays constitutes an unambiguous sign of physics beyond the Standard Model, offering the opportunity to probe the underlying new physics. We also present a first measurement of the $\tau$-mass and the prospects for the $\tau$-lifetime measurement. In this talk we will review the $\tau$ lepton physics program of Belle~II.
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.