# 30th International Symposium on Lepton Photon Interactions at High Energies

Jan 10 – 14, 2022
Online only
Europe/London timezone

## New results on semileptonic B decays at Belle

Jan 12, 2022, 9:40 AM
20m
Online only

#### Online only

Parallel session talk Flavour

### Speaker

Florian Urs Bernlochner (University of Bonn (DE))

### Description

Though the Belle experiment has stopped data taking more than a decade ago, new results on semileptonic B meson decays are still being obtained. This is in part due to new experimental tools elaborated for Belle II applied to the Belle data set, such as the FEI (Full Event Interpretation) hadronic and semileptonic tag. We report new results on differential branching fractions of inclusive $B \to X_u \ell\nu$ and q2 moments in $B \to X_c \ell\nu$, which improve |Vub| and |Vcb| measurements. We also present measurements on exclusive decays $B \to \pi\pi\ell\nu$, $B \to \eta^{(\prime)} \ell\nu$ and $B \to D^{\ast\ast} \ell\nu$, which are relevant to |Vub| and R(D*) measurements.