Angular analysis of $B\to K^{\ast }{e}^{+}{e}^{-}$ in the low-$q^2$ region with new electron identification at Belle

Belle Collaboration, D. Ferlewicz, P. Urquijo +167

We perform an angular analysis of the $B\to K^{\ast }{e}^{+}{e}^{-}$ decay for the dielectron mass squared, $q^2$, range of $0.0008$ to $1.1200{\text{GeV}}^2/c^4$ using the full Belle data se…