Saved in:
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2023
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2304.06243 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866913191625228288 |
|---|---|
| author | Zhao, Zheng Xu, Kai Limphirat, Ayut Sreethawong, Warintorn Tagsinsit, Nattapat Kaewsnod, Attaphon Liu, Xuyang Khosonthongkee, Khanchai Cheedket, Sampart Yan, Yupeng |
| author_facet | Zhao, Zheng Xu, Kai Limphirat, Ayut Sreethawong, Warintorn Tagsinsit, Nattapat Kaewsnod, Attaphon Liu, Xuyang Khosonthongkee, Khanchai Cheedket, Sampart Yan, Yupeng |
| contents | We calculate the masses and leptonic decay widths of the bottomonium $b\bar b$ and charmonium $c\bar c$ states in a constituent quark model where the Cornell-like potential and spin-dependent interaction are employed, with all model parameters predetermined by studying ground and first radial excited states of S- and P-wave heavy quarkonium mesons. By comparing the theoretical predictions for $J^{PC}=1^{--}$ quarkonium states with experimental data and considering possible mixtures of $nS$ and $(n-1)D$ states, we provide tentative assignments for all observed $J^{PC}=1^{--}$ heavy quarkonia. The work suggests that the $Υ$(10860) and $Υ$(11020) are $b\bar b$ $5S-4D$ mixture states, and the $ψ$(4360) and $ψ$(4415) are largely $4S$ and $3D$ $c\bar c$ states respectively. The $ψ$(4260) may not be accommodated with the conventional meson picture in the present work. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2304_06243 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Mass spectrum of $1^{--}$ heavy quarkonium Zhao, Zheng Xu, Kai Limphirat, Ayut Sreethawong, Warintorn Tagsinsit, Nattapat Kaewsnod, Attaphon Liu, Xuyang Khosonthongkee, Khanchai Cheedket, Sampart Yan, Yupeng High Energy Physics - Phenomenology We calculate the masses and leptonic decay widths of the bottomonium $b\bar b$ and charmonium $c\bar c$ states in a constituent quark model where the Cornell-like potential and spin-dependent interaction are employed, with all model parameters predetermined by studying ground and first radial excited states of S- and P-wave heavy quarkonium mesons. By comparing the theoretical predictions for $J^{PC}=1^{--}$ quarkonium states with experimental data and considering possible mixtures of $nS$ and $(n-1)D$ states, we provide tentative assignments for all observed $J^{PC}=1^{--}$ heavy quarkonia. The work suggests that the $Υ$(10860) and $Υ$(11020) are $b\bar b$ $5S-4D$ mixture states, and the $ψ$(4360) and $ψ$(4415) are largely $4S$ and $3D$ $c\bar c$ states respectively. The $ψ$(4260) may not be accommodated with the conventional meson picture in the present work. |
| title | Mass spectrum of $1^{--}$ heavy quarkonium |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2304.06243 |