Possible strange hidden-charm pentaquarks from $\Sigma_c^{(*)}\bar{D}_s^*$ and $\Xi^{(',*)}_c\bar{D}^*$ interactions

TL;DR

This paper uses the one-boson-exchange model to predict new hidden-charm molecular pentaquarks involving various charmed baryon and meson interactions, suggesting promising candidates for experimental discovery.

Contribution

It introduces a theoretical prediction of specific hidden-charm pentaquark states based on detailed interaction models, expanding the understanding of exotic hadrons.

Findings

Predicted $ ext{Xi}_c'ar{ ext{D}}^*$ state with $J^P=1/2^-$

Predicted $ ext{Xi}_c^*ar{ ext{D}}^*$ states with $J^P=1/2^-$ and $3/2^-$

Identified promising candidates for experimental searches at LHCb

Abstract

Using the one-boson-exchange model, we investigate the $\Lambda_c\bar{D}_s^*$, $\Sigma_c\bar{D}_s^*$, $\Sigma_c^*\bar{D}_s^*$, $\Xi_c\bar{D}^*$, $\Xi_c'\bar{D}^*$, and $\Xi_c^*\bar{D}^*$ interactions by considering the one-eta-exchange and/or one-pion-exchange contributions. We further predict the existence of hidden-charm molecular pentaquarks. Promising candidates for hidden-charm molecular pentaquarks include a $\Xi_c'\bar{D}^*$ state with $0(\frac{1}{2}^-)$ and the $\Xi_c^*\bar{D}^*$ states with $0(\frac{1}{2}^-)$ and $0(\frac{3}{2}^-)$. Experimental searches for these predicted hidden-charm molecular pentaquarks are an interesting future research topic for experiments like LHCb.