What we can learn from the angular differential rates (only) in semileptonic $B\to D^{\ast }\ell {\nu }_{\ell }$ decays

G. Martinelli, S. Simula, L. Vittorio

We present a simple approach to the study of semileptonic $B\to D^{\ast }\ell {\nu }_{\ell }$ decays based on the angular distributions of the final state particles only. Our approach is model…