Speaker
Arthur THALLER
(CPPM, CNRS/IN2P3)
Description
The Belle$~$II experiment has collected a $424~\mathrm{fb}^{-1}$ sample of $e^+e^-$ collision data at centre-of-mass energies near the $\Upsilon(nS)$ resonances. This sample contains 389 million $e^+e^-\to \tau^+\tau^{-}$ events, which we use for precision tests of the standard model. We present measurements of leptonic branching fractions, lepton-flavour universality between electrons and muons, the tau mass, and the Cabibbo-Kobayashi-Maskawa matrix element $V_{us}$. We also present world's leading limits on searches for lepton flavor violating $\tau$ decays.
Details
Arthur Thaller, CPPM CNRS/IN2P3 France
| Internet talk | No |
|---|---|
| Is this an abstract from experimental collaboration? | Yes |
| Name of experiment and experimental site | Belle II |
| Is the speaker for that presentation defined? | Yes |
Author
Arthur THALLER
(CPPM, CNRS/IN2P3)
