Charmonium-like states with the exotic quantum number $J^{PC} = 3^{-+}$
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arXiv
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| Autori principali: | , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866912078010253312 |
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| author | Xi, Hong-Zhou Chen, Hua-Xing Chen, Wei Steele, T. G. Zhang, Yong Zhou, Dan |
| author_facet | Xi, Hong-Zhou Chen, Hua-Xing Chen, Wei Steele, T. G. Zhang, Yong Zhou, Dan |
| contents | We apply the method of QCD sum rules to study the $q c \bar q \bar c$ tetraquark states with the exotic quantum number $J^{PC} = 3^{-+}$, and extract the mass of the lowest-lying state to be ${4.49^{+0.45}_{-0.41}}$ GeV. To construct the relevant tetraquark currents we need to explicitly add the covariant derivative operator. Our systematic analysis of these interpolating currents indicates that: a) this state readily decays into the $P$-wave $[ρJ/ψ] / [ωJ/ψ]$ channel but not into the $ [ρχ_{c2}]/[ωχ_{c2}]/[J/ψf_2(1270)]$ channels, and b) it readily decays into the $[D^* \bar D_2^*]$ channel but not into the $P$-wave $[D^* \bar D^*]$ channel. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_04828 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Charmonium-like states with the exotic quantum number $J^{PC} = 3^{-+}$ Xi, Hong-Zhou Chen, Hua-Xing Chen, Wei Steele, T. G. Zhang, Yong Zhou, Dan High Energy Physics - Phenomenology High Energy Physics - Experiment We apply the method of QCD sum rules to study the $q c \bar q \bar c$ tetraquark states with the exotic quantum number $J^{PC} = 3^{-+}$, and extract the mass of the lowest-lying state to be ${4.49^{+0.45}_{-0.41}}$ GeV. To construct the relevant tetraquark currents we need to explicitly add the covariant derivative operator. Our systematic analysis of these interpolating currents indicates that: a) this state readily decays into the $P$-wave $[ρJ/ψ] / [ωJ/ψ]$ channel but not into the $ [ρχ_{c2}]/[ωχ_{c2}]/[J/ψf_2(1270)]$ channels, and b) it readily decays into the $[D^* \bar D_2^*]$ channel but not into the $P$-wave $[D^* \bar D^*]$ channel. |
| title | Charmonium-like states with the exotic quantum number $J^{PC} = 3^{-+}$ |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2408.04828 |