Doubly-charmed pentaquark states in a mass splitting model
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arXiv
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| Auteurs principaux: | , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866916938612998144 |
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| author | Li, Shi-Yuan Liu, Yan-Rui Shu, Cheng-Rui Si, Zong-Guo |
| author_facet | Li, Shi-Yuan Liu, Yan-Rui Shu, Cheng-Rui Si, Zong-Guo |
| contents | Concentrating on the mass differences relative to $P_ψ^{N}(4312)^+$, we systematically investigate the spectra of doubly-charmed pentaquark states in the compact $ccqq\bar{q}$ ($q=u, d, s$) configuration. The assumption that the observed $P_ψ^{N}(4312)^+$ is a compact hidden-charm pentaquark with $I(J^P)=\frac12(\frac32^-)$ is adopted. We also study the properties of strong decays within a simple rearrangement scheme. The results indicate that the $I(J^P)=\frac12(\frac12^-)$ $ccnn\bar{n}$ with $I_{nn}=0$ where $n$ denotes $u$ or $d$ quark, $I(J^P)=0(\frac12^-)$ $ccnn\bar{s}$, and $I(J^P)=0(\frac12^-)$ $ccns\bar{n}$ ground states should be stable. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_15789 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Doubly-charmed pentaquark states in a mass splitting model Li, Shi-Yuan Liu, Yan-Rui Shu, Cheng-Rui Si, Zong-Guo High Energy Physics - Phenomenology High Energy Physics - Experiment Concentrating on the mass differences relative to $P_ψ^{N}(4312)^+$, we systematically investigate the spectra of doubly-charmed pentaquark states in the compact $ccqq\bar{q}$ ($q=u, d, s$) configuration. The assumption that the observed $P_ψ^{N}(4312)^+$ is a compact hidden-charm pentaquark with $I(J^P)=\frac12(\frac32^-)$ is adopted. We also study the properties of strong decays within a simple rearrangement scheme. The results indicate that the $I(J^P)=\frac12(\frac12^-)$ $ccnn\bar{n}$ with $I_{nn}=0$ where $n$ denotes $u$ or $d$ quark, $I(J^P)=0(\frac12^-)$ $ccnn\bar{s}$, and $I(J^P)=0(\frac12^-)$ $ccns\bar{n}$ ground states should be stable. |
| title | Doubly-charmed pentaquark states in a mass splitting model |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2504.15789 |