Since the LHCb collaboration successively reported the hidden-charm exotic states Pc and Pcs, these exotic states have rightfully attracted significant attention from theoretical perspectives. Motivated by these exotic states, this study systematically investigates the hidden-charm double-strange pentaquark system with the quark configuration nsscc¯ using the resonating group method within the framework of the quark delocalization color screening model. The dynamical estimations, incorporating channel coupling, identify five resonance states in the hidden-charm double-strange systems, denoted as Ξc′D¯s* and Ξc*D¯s* with JP=1/2−, Ξc*D¯s, Ξc*D¯s*, and Ω*D¯* with JP=3/2−, through scattering phase shifts processes of various channels. Ξc′D¯s* and Ξc*D¯s* with JP=1/2−, with mass range and decay widths of (4684 MeV–4688 MeV, 6.4 MeV–24.2 MeV) and (4751 MeV–4756 MeV, 3.2 MeV–18.7 MeV), can be derived from the scattering processes of channels Ξηc, ΞJ/ψ, and ΞcD¯s, it should be noted that resonance state Ξc′D¯s*, in addition to the channels mentioned above, can also be observed in Ξ*J/ψ and ΞcD¯s*. For the quantum number JP=3/2−, Ξc*D¯s* and Ω*D¯* can be identified in channels ΞJ/ψ, Ξ*J/ψ and ΞcD¯s*, and Ξ*J/ψ and Ξc′D¯s*, respectively, the estimated masses and decay widths of these resonance states range from approximately (4749 MeV–4755 MeV, 16.4 MeV) and (4771 MeV-4772 MeV, 18.8 MeV). However, the residual resonance state Ξc*D¯s, for which the estimated mass and decay width are about 4600 MeV and 21.7 MeV, is expected to be found only in channel ΞcD¯s*. Given the current theoretical estimations, experiments are anticipated to further explore hidden-charm double-strange pentaquark states through the possible decay channels, thereby offering a strong theoretical foundation for their experimental investigation.
Liu et al. (Tue,) studied this question.