Hidden-charm pentaquarks with triple strangeness due to the ${\Omega }_c^{(\ast )}{\bar{D}}_s^{(\ast )}$ interactions

Abstract

Motivated by the successful interpretation of these observed $P_c$ and $P_{cs}$ states under the meson-baryon molecular picture, we systematically investigate the possible hidden-charm molecular pentaquark states with triple strangeness which is due to the ${\Omega }_c^{(\ast )}{\bar{D}}_s^{(\ast )}$ interactions. We perform a dynamical calculation of the possible hidden-charm molecular pentaquarks with triple strangeness by the one-boson-exchange model, where the $S$-$D$ wave mixing effect and the coupled channel effect are taken into account in our calculation. Our results suggest that the ${\Omega }_c{\bar{D}}_s^{\ast }$ state with $J^P=3/2^{-}$ and the ${\Omega }_c^{\ast }{\bar{D}}_s^{\ast }$ state with $J^P=5/2^{-}$ can be recommended as the candidates of the hidden-charm molecular pentaquark with triple strangeness. Furthermore, we discuss the two-body hidden-charm strong decay behaviors of these possible hidden-charm molecular pentaquarks with triple strangeness by adopting the quark-interchange model. These predictions are expected to be tested at the LHCb, which can be as a potential research issue with more accumulated experimental data in near future.

arXiv comment11 pages, 3 figures and 7 tables. More discussions added. Accepted by Phys. Rev. D

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