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Hidden charm pentaquark states and $\Sigma_c^{(*)}\bar{D}^{(*)}$ interaction in chiral perturbation theory

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arxiv 1911.09250 v1 pith:OHVHSERQ submitted 2019-11-21 hep-ph

Lu Meng , Bo Wang , Guang-Juan Wang , Shi-Lin Zhu This is my paper · ORCID
classification hep-ph
keywords stateschiraldiagramsinteractionloopperturbationsigmatheory
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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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  1. A study on the properties of hidden-charm pentaquarks with double strangeness

    hep-ph 2025-05 conditional novelty 5.0 of 10

    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.

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