Observation of new ${\Omega }_c^0$ states decaying to the ${\Xi }_c^{+}{K}^{-}$ final state

LHCb collaboration

Two new excited states, ${\Omega }_c(3185{)}^0$ and ${\Omega }_c(3327{)}^0$, are observed in the ${\Xi }_c^{+}{K}^{-}$ invariant-mass spectrum using proton-proton collision data collected by the LHCb experim…