EPJ Web of Conferences
Volume 118, 2016International Workshop on “Flavour Changing and Conserving Processes” 2015 (FCCP 2015)
|Number of page(s)||5|
|Published online||26 April 2016|
Lepton Universality and Lepton Flavour Violation tests at the B-factories
1 Scuola Normale Superiore, Pisa, Italy
2 INFN sezione di Pisa, Pisa, Italy
a e-mail: firstname.lastname@example.org
Published online: 26 April 2016
We review the experimental status of the lepton universality tests and lepton flavour violation searches after the completion of the data-taking and most of the data analysis of the B-factories BABAR and Belle. The universality of the Standard Model charged weak couplings has been confirmed and moderately improved in precision by the B-factories results. Lepton Flavour violation in the τ lepton decays has been searched in several decay modes and no evidence has been found. We set 90% confidence level upper limits on the Lepton Flavour violating branching ratios in the 10−7–10−8 range, greatly extending the previous limits set mainly by CLEO in the 10−6 range.
© Owned by the authors, published by EDP Sciences, 2016
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