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| Format: | Preprint |
| Veröffentlicht: |
2025
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| Online-Zugang: | https://arxiv.org/abs/2504.14575 |
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| _version_ | 1866908328563572736 |
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| author | Gao, Xiu-Li Cui, Jun-Xi Zhou, Yu-Hui Zhou, Zhi-Yong |
| author_facet | Gao, Xiu-Li Cui, Jun-Xi Zhou, Yu-Hui Zhou, Zhi-Yong |
| contents | Motivated by recent experimental observations of charmonium(-like) states, we investigate their interpretation as conventional charmonium states within the framework of relativized quark potential model. We find a consistent description of the updated masses of charmonia, bottomonia and some selected charmed mesons, then systematically compute open-charm strong decay widths and electromagnetic transition widths for radially excited charmonium states up to $n=5$. The numerical results show significantly improved agreement with experimental masses and widths. Notably, the newly-observed $χ_{c1}(4010)$ and $χ_{c1}(4274)$ are tentatively associated with the $χ_{c1}(2P)$ and $χ_{c1}(3P)$ respectively, while the $χ_{c0}(4500)$ and $χ_{c0}(4700)$ are interpreted as the $χ_{c0}(4P)$ and $χ_{c0}(5P)$ states. For the controversial $χ_{c1}(3872)$ state, we suggest its potential connection to $χ_{c1}(4010)$, as a two-pole structure due to the $χ_{c1}(2P)$ coupling to $D\bar{D}$ channels. Intriguingly, the predicted mass of $χ_{c0}(2P)$ is about 3851 MeV, diverging from the original estimate of 3916 MeV in the Godfrey and Isgur's work but consistent with non-relativistic potential model predictions. This calculation might provide more insight to the future experimental investigation of charmonium(-like) states. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_14575 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Updated analysis of charmonium states in a relativized quark potential model Gao, Xiu-Li Cui, Jun-Xi Zhou, Yu-Hui Zhou, Zhi-Yong High Energy Physics - Phenomenology High Energy Physics - Experiment Motivated by recent experimental observations of charmonium(-like) states, we investigate their interpretation as conventional charmonium states within the framework of relativized quark potential model. We find a consistent description of the updated masses of charmonia, bottomonia and some selected charmed mesons, then systematically compute open-charm strong decay widths and electromagnetic transition widths for radially excited charmonium states up to $n=5$. The numerical results show significantly improved agreement with experimental masses and widths. Notably, the newly-observed $χ_{c1}(4010)$ and $χ_{c1}(4274)$ are tentatively associated with the $χ_{c1}(2P)$ and $χ_{c1}(3P)$ respectively, while the $χ_{c0}(4500)$ and $χ_{c0}(4700)$ are interpreted as the $χ_{c0}(4P)$ and $χ_{c0}(5P)$ states. For the controversial $χ_{c1}(3872)$ state, we suggest its potential connection to $χ_{c1}(4010)$, as a two-pole structure due to the $χ_{c1}(2P)$ coupling to $D\bar{D}$ channels. Intriguingly, the predicted mass of $χ_{c0}(2P)$ is about 3851 MeV, diverging from the original estimate of 3916 MeV in the Godfrey and Isgur's work but consistent with non-relativistic potential model predictions. This calculation might provide more insight to the future experimental investigation of charmonium(-like) states. |
| title | Updated analysis of charmonium states in a relativized quark potential model |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2504.14575 |