Speaker
Steven Robertson
(IPP / University of Alberta)
Description
The Belle II experiment has collected a $600~\mathrm{fb}^{-1}$ sample of $e^+e^-$ collision data at center-of-mass energies near the $\Upsilon(nS)$ resonances. This sample contains approximately 540 million $e^+e^-\to \tau^+\tau^{-}$ events, which we use for precision tests of the standard model. We present new measurements including the $C\!P$ asymmetry in $\tau \to K^0 \pi\nu$ decays, the $\tau$ lifetime, and branching fractions and spectral moments of $\tau$ decays to final states with strangeness.
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Author
Steven Robertson
(IPP / University of Alberta)