Analysis of the hidden-charm pentaquark candidates in the $J/ψΣ$ mass spectrum via the QCD sum rules
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arXiv
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| Format: | Preprint |
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2026
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| _version_ | 1866908879115255808 |
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| author | Wang, Zhi-Gang Liu, Yang |
| author_facet | Wang, Zhi-Gang Liu, Yang |
| contents | In this work, we adopt the diquark model, construct the diquark-diquark-antiquark type currents with the light quarks $uus$ in two octets, and study the $uusc\bar{c}$ pentaquark states in the framework of the QCD sum rules systematically. We obtain the mass spectrum of the hidden-charm-singly-strange pentaquark states with the quantum numbers $IJ^{P}=1{\frac{1}{2}}^-$, $1{\frac{3}{2}}^-$ and $1{\frac{5}{2}}^-$. And we can search for those $P_{cs}$ states in the processes $Σ_b^+\to P_{cs}^+ϕ\to J/ψΣ^+ \,ϕ$ and $Ξ_b^0\to P_{cs}^+ K^- \to J/ψΣ^+\, K^-$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_10774 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Analysis of the hidden-charm pentaquark candidates in the $J/ψΣ$ mass spectrum via the QCD sum rules Wang, Zhi-Gang Liu, Yang High Energy Physics - Phenomenology In this work, we adopt the diquark model, construct the diquark-diquark-antiquark type currents with the light quarks $uus$ in two octets, and study the $uusc\bar{c}$ pentaquark states in the framework of the QCD sum rules systematically. We obtain the mass spectrum of the hidden-charm-singly-strange pentaquark states with the quantum numbers $IJ^{P}=1{\frac{1}{2}}^-$, $1{\frac{3}{2}}^-$ and $1{\frac{5}{2}}^-$. And we can search for those $P_{cs}$ states in the processes $Σ_b^+\to P_{cs}^+ϕ\to J/ψΣ^+ \,ϕ$ and $Ξ_b^0\to P_{cs}^+ K^- \to J/ψΣ^+\, K^-$. |
| title | Analysis of the hidden-charm pentaquark candidates in the $J/ψΣ$ mass spectrum via the QCD sum rules |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2603.10774 |