Speaker
Seema Choudhury
(IIT Hyderabad)
Description
Recent anomalies of lepton flavor universality violation (LFUV) in B decays could be a hint of new physics. We report new measurements of LFUV observable R(K) and R(K*), the branching fraction of $B \to K^{(*)} \mu^+ \mu^-$ to $B \to K^{(*)} e^+ e^-$, at Belle. The analyses are based on the full data set recorded by the Belle detector at the $\Upsilon(4S)$ resonance containing 772 million $B\bar{B}$ pairs from e+ e- collisions produced by the KEKB collider.
Author
Shohei Nishida
(KEK)
