Observation of a new excited charm-strange meson $D_{s1}(2933{)}^{+}$ in $B^0\to D^{+}{D}^{-}{K}^{+}\ddot{I}{€}^{-}$ decays

LHCb collaboration, R. Aaij, M. Abdelfatah +1114

A new excited charm-strange meson is observed through an amplitude analysis of the full phase space of $B^0\to D^{+}{D}^{-}{K}^{+}\ddot{I}{€}^{-}$ decays. The analysis is based on a proton-proton co…