Apr 8 – 12, 2024
Maison MINATEC, Grenoble, FRANCE
Europe/Paris timezone

Recent results from Belle II

Apr 11, 2024, 10:20 AM
20m
Maison MINATEC, Grenoble, FRANCE

Maison MINATEC, Grenoble, FRANCE

3 Parv. Louis Néel, 38054 Grenoble
Regular parallel talk WG3: Electroweak Physics and Beyond the Standard Model WG3

Speaker

Youngjoon Kwon (Yonsei University)

Description

The Belle II experiment has collected a 424 fb$^{-1}$ data set of $e^+e^-$ collisions produced by the asymmetric-energy SuperKEKB collider. Three-quarters of the data have a centre-of-mass energy equal to the mass of the $\Upsilon(4S)$ resonance, which decays to $B$-meson pairs, allowing measurements of rare $B$ decays, $C\!P$ violation, and searches for lepton universality violation. Highlights include the first observation of $B\to K\nu\bar{\nu}$ and measurements of lepton-universality in semitauonic $B$ decays. We have also recorded a dedicated 19.2$~$fb$^{-1}$ data set away from the $\Upsilon(4S)$, where we have made measurements related to the properties of the $\Upsilon(10753)$, to probe its potentially exotic nature. Our first results related to charm hadron decays, which use the full data sample, are also presented.

Primary author

Youngjoon Kwon (Yonsei University)

Presentation materials