Discriminating $B\to D^{\ast }\ell \nu$ form factors via polarization observables and asymmetries

Marco Fedele, Monika Blanke, Andreas Crivellin +4

Form factors are crucial theory input in order to extract $|V_{cb}|$ from $B\to D^{(\ast )}\ell \nu$ decays, to calculate the Standard Model prediction for $\mathcal{R}(D^{(\ast )})$ and to ass…