000002589 001__ 2589
000002589 005__ 20210730154616.0
000002589 037__ $$aBELLE2-TALK-CONF-2021-084
000002589 041__ $$aeng
000002589 088__ $$aBELLE2-TALK-DRAFT-2021-089
000002589 100__ $$aAlejandro De Yta Hernandez
000002589 245__ $$aTau physics prospects at Belle II
000002589 260__ $$aEPS-HEP 2021$$c2021-07-26
000002589 300__ $$amult. p
000002589 520__ $$aThe Belle II experiment is a substantial upgrade of the Belle detector and will operate at the SuperKEKB energy-asymmetric e+e− collider. The design luminosity of the machine is 8 × 1035 cm−2s−1 and the Belle II experiment aims to record 50 ab−1 of data, a factor of 50 more than its predecessor. From February to July 2018, the machine has completed a commissioning run and main operation of SuperKEKB has started in March2019. Belle II has a broad τ physics program, in particular in searches for lepton flavour and lepton number violations (LFV and LNV), benefiting from the large cross section of the pair wise τ lepton production in e+e− collisions. We expect that after 5 years of data taking, Belle II will be able to reduce the upper limits on LF and LN violating τ decays by an order of magnitude. Any experimental observation of LFV or LNV in τ decays constitutes an unambiguous sign of physics beyond the Standard Model, offering the opportunity to probe the underlying New Physics. In this talk we will review the τ lepton physics program of Belle II.
000002589 8560_ $$fdjaffe@bnl.gov
000002589 8564_ $$uhttps://docs.belle2.org/record/2589/files/BELLE2-TALK-CONF-2021-084.pdf