# Status and prospects for $\tau$ property measurements at Belle II

### Submission summary

 As Contributors: Michel Enrique Hernandez Villanueva Preprint link: scipost_202112_00024v1 Date submitted: 2021-12-10 22:47 Submitted by: Hernandez Villanueva, Michel Enrique Submitted to: SciPost Physics Proceedings Proceedings issue: 16th International Workshop on Tau Lepton Physics (TAU2021) Academic field: Physics Specialties: High-Energy Physics - Experiment Approach: Experimental

### Abstract

The Belle II experiment is a major upgrade of the Belle detector, operating at the SuperKEKB energy-asymmetric $e^+e^-$ collider with a design luminosity of 8×$10^{35}$~cm$^{-2}$s$^{-1}$. To date, the detector has recorded over 200 fb$^{-1}$ of data and aims to collect 50 ab$^{-1}$, a factor of x50 more than its predecessor. Belle II has a broad $\tau$ physics program, from high-precision measurements of SM parameters to searches of new physics via experimental probe of BSM processes. In this work, we review the status of the Belle II experiment, and the prospects for the measurement of the $\tau$ lepton mass and lifetime, fundamental inputs in tests of LFU violation.

###### Current status:
Editor-in-charge assigned