Investigating the excited Ωc0 states through Ξc(K)over-bar and Ξ′c(K)over-bar decay channels

Inspired by the five newly observed Omega(0)(c) states by the LHCb detector, we study the Omega(0)(c) states as the S-wave molecular pentaquarks with I = 0, J(P) = 1-/2, 3-/2, and 5-/2 by solving the renormalization group method equation in the framework of the chiral quark model. Both the energies and the decay widths are obtained in this work. Our results suggest that Omega(c) (3119)(0) can be explained as an S-wave resonance state of Xi D with J(P) = 1-/2, and the decay channels are the S-wave Xi(c) (K) over bar and Xi ' 0(c)(K) over bar. Other reported Omega(0)(c) states cannot be obtained in our present calculation. Another Omega(0)(c) state with much higher mass 3533 MeV with J(P) = 5-/2 is also obtained. In addition, the calculation is extended to the Omega(0)(b) states, and results similar to those of Omega(0)(c) are obtained.