Mass behavior of hidden-charm pentaquarks with open-strange inspired by these established $P_c$ molecular states

TL;DR

This paper predicts new hidden-charm pentaquark states with strangeness by analyzing meson-baryon interactions inspired by known $P_c$ states, using symmetry principles to relate different systems.

Contribution

It introduces a coupled channel analysis of $ ext{Xi}_c^{( ext{prime},*)}ar{D}^{(*)}$ interactions, predicting several promising molecular pentaquark states with strangeness based on symmetry considerations.

Findings

Predicted $ ext{Xi}_c^{ ext{prime}}ar{D}$ states with $I(J^P)=0,1(1/2^-)$

Predicted $ ext{Xi}_c^*ar{D}$ states with $0,1(3/2^-)$

Predicted $ ext{Xi}_c^{ ext{prime}}ar{D}^*$ and $ ext{Xi}_c^*ar{D}^*$ states with various $J^P$

Abstract

Stimulated by the meson-baryon molecular interpretations of the $P_c$ states ($P_c(4312)/P_c(4440)/P_c(4457)$), we systematically study the interactions between an $S-$wave charm-strange baryon $\Xi_c^{(\prime,*)}$ and an anti-charmed meson $\bar{D}^{(*)}$ in a coupled channel analysis. Effective potentials for the $\Xi_c^{(\prime,*)}\bar{D}^{(*)}$ interactions in a one-boson-exchange model can be related to those in the $\Sigma_c^{(*)}\bar{D}^{(*)}$ systems by using the $SU(3)$ flavor symmetry and heavy quark symmetry. Our results can predict several promising hidden-charm molecular pentaquarks with strangeness $|S|=1$, which include the $\Xi_c^{\prime}\bar{D}$ states with $I(J^P)=0,1(1/2^-)$, the $\Xi_c^*\bar{D}$ states with $0,1(3/2^-)$, the $\Xi_c^{\prime}\bar{D}^*$ states with $0(1/2^-)$ and $0,1(3/2^-)$, and the $\Xi_c^*\bar{D}^*$ states with $0(1/2^-,3/2^-,5/2^-)$.