Hidden-charm pentaquark states in a mass splitting model

Assuming that the \(P_c(4312)^+\) is a \(I(J^P)=\frac12(\frac32^-)\) compact pentaquark, we study the mass spectrum of its S-wave hidden-charm partner states in a color-magnetic interaction model. Combining the information from their decays obtained in a simple rearrangement scheme, one finds that t...

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Bibliographic Details
Published in:arXiv.org 2024-01
Main Authors: Shi-Yuan, Li, Yan-Rui, Liu, Zi-Long, Man, Zong-Guo, Si, Wu, Jing
Format: Article
Language:English
Subjects:
Interaction models
Quantum numbers
S waves
Online Access:Get full text
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Summary:Assuming that the \(P_c(4312)^+\) is a \(I(J^P)=\frac12(\frac32^-)\) compact pentaquark, we study the mass spectrum of its S-wave hidden-charm partner states in a color-magnetic interaction model. Combining the information from their decays obtained in a simple rearrangement scheme, one finds that the quantum numbers of \(P_c(4457)^+\), \( P_c(4440)^+\), and \(P_c(4337)^+\) can be assigned to be \(I(J^P)=\frac12(\frac32^-)\), \(\frac12(\frac12^-)\), and \(\frac12(\frac12^-)\), respectively, while both \(P_{cs}(4338)^0\) and \(P_{cs}(4459)^0\) can be interpreted as \(I(J^P)=0(\frac12^-)\) \(udsc\bar{c}\) compact states. Based on the numerical results, we also find narrow pentaquarks in \(ssnc\bar{c}\) (\(n=u,d\)) and \(sssc\bar{c}\) systems. The decay properties of the studied pentaquarks and the searching channels for them can be tested in future experiments.
ISSN:2331-8422
DOI:10.48550/arxiv.2307.00539