Kazuki Kojima

30 November 2021
Light Cone 2021: Physics of Hadrons on the Light Front

Abstract: In the recent years, several measurements of B-decays with flavor changing neutral currents, i.e. $b \to s$ transitions hint at deviations from the Standard Model (SM) predictions. In addition there are discrepancies with the SM predictions in $ b \to c \tau \nu$ decays. The Belle II experiment is a substantial upgrade of the Belle detector and operates at the SuperKEKB energy-asymmetric $e^+e^−$ collider. The present status of measurements at Belle II related to these so called B anomalies will be presented, including a novel search for the $ B \to K \nu \bar\nu$, $b \to s$ transition.

Keyword(s): Semileptonic ; Electroweak penguin ; Vcb ; Vub ; Kll ; Knunu ; Light Cone ; LC2021 ; 2021
Note: 20 minutes (17 minutes presentation + 3 minutes Q&A); https://indico.cern.ch/event/938795/contributions/4583181/