Five hidden-charm double-strange pentaquark resonances are predicted in the QDCSM with masses between 4600 and 4772 MeV, along with widths and dominant decay channels.
Hidden charm pentaquark states and $\Sigma_c^{(*)}\bar{D}^{(*)}$ interaction in chiral perturbation theory
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abstract
We adopt the chiral perturbation theory to calculate the $\Sigma_{c}^{(*)}\bar{D}^{(*)}$ interaction to the next-to-leading order (NLO) and include the couple-channel effect in the loop diagrams. We reproduce the three $P_c$ states in the molecular picture after including the $\Lambda_{c}\bar{D}^{(*)}$ intermediate states. We also discuss some novel observations arising from the loop diagrams.
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A study on the properties of hidden-charm pentaquarks with double strangeness
Five hidden-charm double-strange pentaquark resonances are predicted in the QDCSM with masses between 4600 and 4772 MeV, along with widths and dominant decay channels.