First observation of the decay $B_s^0\to K_S^0{K}^{\ast }(892{)}^0$

LHCb collaboration, R. Aaij, B. Adeva +713

A search for $B_{(s)}^0\to K_S^0{K}^{\ast }(892{)}^0$ decays is performed using $pp$ collision data, corresponding to an integrated luminosity of $1.0{\text{fb}}^{-1}$, collected…