20–27 juil. 2011
Alpes Congrès - Alpexpo
Fuseau horaire Europe/Paris

Rare tau decays at Belle

21 juil. 2011, 10:15
15m
Oisans (Alpes Congrès - Alpexpo)

Oisans

Alpes Congrès - Alpexpo

Parallel session talk Flavour Physics and Fundamental Symmetries Flavour Physics and Fundamental Symmetries

Orateur

Dr Kiyoshi Hayasaka (Nagoya University)

Description

We report results of a search for tau lepton decays strongly suppressed in the Standard Model based on the world-largest data sample accumulated with the Belle detector at the KEKB asymmetric-energy e+e- collider. The decays include: lepton flavor and lepton number violating tau decays into a lepton (e or mu) and two charged mesons (K or pi), lepton flavor violating decays into a lepton (e or mu) and a photon as well as lepton and baryon number violating tau decays into a Lambda and a charged meson (K or pi). The sensitivity to the branching fractions is significantly improved compared to our previous results and in some cases reaches O(10^{-8}).

Auteur principal

Dr Kiyoshi Hayasaka (Nagoya University)

Documents de présentation