Speaker
Marcela Garcia Hernandez
Description
The Belle II experiment has collected a 424fb$^{-1}$ sample of $e^{+}e^{-}$ collision data at center-of-mass energies near the resonances $\Upsilon(nS)$. This sample contains 389 million $e^{+}e^{-} \to \tau^{+}\tau^{-}$ events, which we use for precision tests of the standard model. In this talk, we focused on the measurements of the tau-lepton mass and
tests of Lepton Flavor Universality (LFU) between electrons and muons.
Authors
Marcela Garcia Hernandez
Sven Vahsen
(University of Hawaii (US))
