Understanding the newly observed Ωc states through their decays

The strong and radiative decay properties of the low-lying Ωc states are studied in a constituent quark model. We find that the newly observed Ωc states by the LHCb Collaboration can fit well in the decay patterns. Thus, their spin parity can possibly be assigned as the following: (i) Ωc(3000) has JP=1/2^- and corresponds to the narrow $1P$ mixed state |1²P_λ1/2^-⟩₁; its partner |1²P_λ1/2^-⟩₂ should be a broad state with a width of ~100 MeV. (ii) Ωc(3050) and Ωc(3066) can be assigned to be two JP=3/2^- states, |1⁴P_λ3/2^-⟩ and |1²P_λ3/2^-⟩, respectively. (iii) Ωc(3090) can be assigned as the |1⁴P_λ5/2^-⟩ state with JP=5/2^-. (iv) Ωc(3119) might correspond to one of the two $2S$ states of the first radial excitations, i.e., |2²S_λλ1/2⁺⟩ or |2⁴S_λλ3/2⁺⟩.