$B\to K^{\ast }{\ell }^{+}{\ell }^{-}$ decays at large recoil in the Standard Model: a theoretical reappraisal

Marco Ciuchini, Marco Fedele, Enrico Franco +4

We critically reassess the theoretical uncertainties in the Standard Model calculation of the $B\to K^{\ast }{\ell }^{+}{\ell }^{-}$ observables, focusing on the low $q^2$ region. We point out…