Interpretation of the new ${\mathrm{\Omega }}_c^0$ states via their mass and width

The mass and pole residue of the ground and first radially excited ${\mathrm{\Omega }}_c^0$ states with spin-parities $J^P=1\mathrm{/}{2}^{+},3\mathrm{/}{2}^{+}$, as well as P-wave ${\mathrm{\Omega }}_c^0$ with $J^P=1\mathrm{/}{2}^{-},3\mathrm{/}{2}^{-}$ are calculated by means of the two-point QCD sum rules. The strong decays of ${\mathrm{\Omega }}_c^0$ baryons are also studied and width of these decay channels are computed. The relevant computations are performed in the context of the full QCD sum rules on the light-cone. Obtained results for the masses and widths are confronted with recent experimental data of LHCb Collaboration, which allow us to interpret ${\mathrm{\Omega }}_c(3000{)}^0$, ${\mathrm{\Omega }}_c(3050{)}^0$, and ${\mathrm{\Omega }}_c(3119{)}^0$ as the excited $css$ baryons with the quantum numbers $(1P,1\mathrm{/}{2}^{-})$, $(1P,3\mathrm{/}{2}^{-})$, and $(2S,3\mathrm{/}{2}^{+})$, respectively. The $(2S,1\mathrm{/}{2}^{+})$ state can be assigned either to ${\mathrm{\Omega }}_c(3066{)}^0$ state or ${\mathrm{\Omega }}_c(3090{)}^0$ excited baryon.