Speaker
Sebastiano Raiz
Description
The Belle and Belle II experiment have collected a 1.2 ab$^{-1}$ sample of $e^+e^-\to B\bar{B}$ decays at a centre-of-mass energy corresponding to the $\Upsilon(4S)$ resonance. The SuperKEKB collider is asymmetric, providing a boost to the $B$ mesons in the laboratory frame, so we can perform measurements of time-dependent $C\!P$ violation. Among the new results, we measure $CP$-violating parameters related to the determination of the least well-known angle of the unitarity triangle $\alpha$ using the decay $B^0\to\rho^+\rho^-$. In addition, we present both inclusive and exclusive measurements of semileptonic and lepton $B$ decay that can determine magnitude of the matrix elements $\left|V_{cb}\right|$ and $\left|V_{ub}\right|$.
Authors
Sebastiano Raiz
Steven Robertson
(IPP / University of Alberta)