Prim M.T.PAO-TI CHANGet. al.2024-10-232024-10-232024-09-24https://scholars.lib.ntu.edu.tw/handle/123456789/722348We measure the complete set of angular coefficients Ji for exclusive B¯→D∗ℓν¯ℓ decays (ℓ=e, μ). Our analysis uses the full 711 fb-1 Belle dataset with hadronic tag-side reconstruction. The results allow us to extract the form factors describing the B¯→D∗ transition and the Cabibbo-Kobayashi-Maskawa matrix element |Vcb|. Using recent lattice QCD calculations for the hadronic form factors, we find |Vcb|=(40.7±0.7)×10-3 using the Boyd-Grinstein-Lebed parametrization, compatible with determinations from inclusive semileptonic decays. We search for lepton flavor universality violation as a function of the hadronic recoil parameter w and investigate the differences of the electron and muon angular distributions. We find no deviation from standard model expectations.journal article10.1103/PhysRevLett.133.131801