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Very recently, LHCb Collaboration observed that two new Ωc0 states decay into Ξc+K− with masses of about 3185 MeV and 3327 MeV. However, their spin-parity quantum numbers JP have not been determined. In this paper, we exploit the quark-diquark model, the linear Regge trajectory and the perturbation treatment method to analyze the mass spectra of the discovered experimental data for the singly heavy baryons Σc/Σb, Ξc′/Ξb′, and Ωc/Ωb. In addition, we further predict the mass spectra of several unobserved Σc/Σb, Ξc′/Ξb′, and Ωc/Ωb baryons. In the case of the Ωc(3185)0 and Ωc(3327)0 states, we determine Ωc(3185)0 as 2S state and Ωc(3327)0 as 1D state with JP=1/2+ and JP=3/2+, respectively. An overall good agreement of the obtained predictions with available experimental data are found. Published by the American Physical Society 2024
Pan et al. (2024) studied this question.
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