We investigate the possible existence of triple-strangeness hidden-charm pentaquark states in the off-shell coupled-channel formalism. The open-charm meson-baryon DₛΩc, DₛΩc^*, Dₛ^*Ωc, and Dₛ^*Ωc^* channels are considered, together with the hidden-charm J/ψΩ channel. The two-body kernel Feynman amplitudes are constructed from an effective Lagrangian based on hidden local symmetry and heavy-quark spin symmetry. The coupled Blankenbecler-Sugar equation is solved in the partial-wave helicity basis. We observe two triple-strangeness hidden-charm pentaquark states: P₂₂ₒₒₒ (4787) and P₂₂ₒₒₒ (4841), both with JP=1/2^-. The P₂₂ₒₒₒ (4787) couples dominantly to the Dₛ^*Ωc and Dₛ^*Ωc^* channels, while the P₂₂ₒₒₒ (4841) couples almost exclusively to the Dₛ^*Ωc^* channel. The total transition cross sections of Dₛ^ () Ωc^ () J/ψ\, Ω indicate that the P₂₂ₒₒₒ (4787) is clearly visible in the J/ψ\, Ω invariant mass spectrum, whereas the P₂₂ₒₒₒ (4841) is obscured by cusp structures and background contributions.
Clymton et al. (Sun,) studied this question.