Observation of five new narrow ${\Omega }_c^0$ states decaying to ${\Xi }_c^{+}{K}^{-}$

LHCb collaboration, R. Aaij, B. Adeva +772

The ${\Xi }_c^{+}{K}^{-}$ mass spectrum is studied with a sample of $pp$ collision data corresponding to an integrated luminosity of 3.3 fb${}^{-1}$, collected by the LHCb experiment. The $Ξ_c…