Measurement of Angular Coefficients of $\bar{B}\to D^{\ast }\ell {\bar{\nu }}_{\ell }$: Implications for $|V_{cb}|$ and Tests of Lepton Flavor Universality

Belle Collaboration, M. T. Prim, F. Bernlochner +158

We measure the complete set of angular coefficients $J_i$ for exclusive $\bar{B}\to D^{\ast }\ell {\bar{\nu }}_{\ell }$ decays ($\ell =e,\mu$). Our analysis uses the full $711{\mathrm{fb}}^{-1}$…