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EnglishWe 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.
| Titolo: | Lepton Universality and Lepton Flavour Violation tests at the B-factories | |
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| Titolo del libro: | International Workshop on “Flavour Changing and Conserving Processes” 2015 (FCCP 2015) | |
| Data di pubblicazione: | 2016 | |
| Nome del convegno: | International Workshop on “Flavour Changing and Conserving Processes” 2015 (FCCP 2015) | |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1051/epjconf/201611801018 | |
| URL: | https://www.epj-conferences.org/articles/epjconf/abs/2016/13/epjconf_fccp2016_01018/epjconf_fccp2016_01018.html | |
| Handle: | http://hdl.handle.net/11384/65250 | |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
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