Rare $B_s$ decays to $\eta$ and ${\eta }^{\prime }$ final states

M. V. Carlucci, P. Colangelo, F. De Fazio

We study exclusive $B_s$ decays to final states with $\eta$ and ${\eta }^{\prime }$, induced by the rare $b\to s{\ell }^{+}{\ell }^{-}$ and $b\to s\nu \bar{\nu }$ transitions. Differential decay rates and…