000001468 001__ 1468
000001468 005__ 20190610092258.0
000001468 037__ $$aBELLE2-TALK-CONF-2019-063
000001468 041__ $$aeng
000001468 088__ $$aBELLE2-TALK-DRAFT-2019-058
000001468 100__ $$aAmi Rostomyan
000001468 245__ $$aLepton flavour and lepton number violation prospects at Belle II
000001468 260__ $$aSUSY 2019$$c2019-05-20
000001468 300__ $$amult. p
000001468 500__ $$a20 min
000001468 520__ $$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 March 2019. 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.
000001468 8560_ $$fdoris.yangsoo.kim@desy.de
000001468 8564_ $$uhttps://docs.belle2.org/record/1468/files/BELLE2-TALK-CONF-2019-063.pdf