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 $\Omega_{c}^{(*)}\bar{D}_s^{(*)}$ 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 $\Omega_{c}\bar D_s^*$ state with $J^P={3}/{2}^{-}$ and the $\Omega_{c}^{*}\bar D_s^*$ 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.
Highlights
As is well known, the study of the matter spectrum is an important way to explore the relevant matter structures and the involved interaction properties
Our results suggest that the ΩcD Ãs state with JP 1⁄4 3=2− and the ΩÃcD Ãs state with JP 1⁄4 5=2− can be recommended as the candidates of the hidden-charm molecular pentaquark with triple strangeness
Our results suggest that the S-wave ΩcD Ãs state with JP 1⁄4 3=2− and the S-wave ΩÃcD Ãs state with JP 1⁄4 5=2− can be regarded as the hidden-charm molecular pentaquark candidates with triple strangeness
Summary
The study of the matter spectrum is an important way to explore the relevant matter structures and the involved interaction properties. In 2019, there was a new progress about the observation of three narrow structures [Pcð4312Þ, Pcð4440Þ, and Pcð4457Þ] by revisiting the process Λb → J=ψpK based on more collected data [19], and they are just below the corresponding thresholds of the S-wave charmed baryon and S-wave anticharmed meson This provides strong evidence to support the existence of the hidden-charm meson-baryon molecular states. We perform a dynamical calculation with the possible hidden-charm molecular pentaquark states with triple strangeness by adopting the one-bosonexchange (OBE) model [2,3], which involves the interactions between an S-wave charmed baryon ΩðcÃÞ and an S-wave anticharmed-strange meson DðsÃÞ.
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