000004511 001__ 4511
000004511 005__ 20240919104642.0
000004511 037__ $$aBELLE2-CONF-PROC-2024-021
000004511 041__ $$aeng
000004511 100__ $$aWenzhe Li
000004511 245__ $$aSearches for lepton-flavour violation in $\tau$ decays at Belle and Belle$~$II
000004511 260__ $$a$$c2024-08-15
000004511 300__ $$amult. p
000004511 520__ $$aThe Belle II experiment is an upgrade of the Belle experiment, and both have extensive plans to search for new physics, in particular to search for lepton flavour and number and baryon number violations (LFV, LNV and BNV) in tau decays. In the low background environment of the $e^+e^-$ collision experiment, the production cross section for $\tau$ pairs is relatively large, providing many opportunities to search for $\tau$ LFV decays in the Belle and Belle II experiments. We present recent results from the search for LFV decay $\tau^- \to \ell^- V^0$ ($\ell = e,\,\mu \,\rm{and}\, V^0=\rho^0,\, \omega,\, \phi,\, K^{*0}$ and $\bar{K}^{*0}$) at Belle, and search for BNV decay $\tau^- \to \Lambda(\bar{\Lambda}) \pi^-$ and LFV decay $\tau^- \to \mu^-\mu^+\mu^-$ at Belle II.
000004511 8560_ $$fliwenzhe@buaa.edu.cn
000004511 8564_ $$uhttps://docs.belle2.org/record/4511/files/BELLE2-CONF-PROC-2024-021.pdf
000004511 8564_ $$uhttps://docs.belle2.org/record/4511/files/BELLE2-CONF-PROC-2024-021-V2.pdf
000004511 8564_ $$uhttps://docs.belle2.org/record/4511/files/BELLE2-CONF-PROC-2024-021-V3.pdf