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| Main Authors: | , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2504.05818 |
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| _version_ | 1866913175176216576 |
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| author | Ma, Zi-Xuan Huang, Qi Chen, Rui Wang, Li-Ming Hu, Xiao-Huang Tan, Yue He, Jun Huang, Hong-Xia |
| author_facet | Ma, Zi-Xuan Huang, Qi Chen, Rui Wang, Li-Ming Hu, Xiao-Huang Tan, Yue He, Jun Huang, Hong-Xia |
| contents | In this letter, we propose that a proper constituent gluon mass $m_g$=450 MeV can be applied to identify the hybrids composed of quarks and gluons. By investigating the spectra and decay widths of the light hybrids $(q\bar{q}g)$ with $J^P=1^{-+}$, we find the $π_1(1600)$ and $η_1(1855)$ may not be explained as $1^{-+}$ hybrids, simultaneously, and the $η_1(1855)$ observed by BESIII may not be a hybrid. In addition, we predict an existence of a hybrid $η_1(1640)$, which can be verified by searching the $a_1(1260)π$ channel. Moreover, we suggest the $K_1(1270)\bar{K}$ and $K_1(1270)π$ as the golden channels to search for an isospin-0 and an isospin-$\frac{1}{2}$ hybrids, respectively. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_05818 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Proper constituent gluon mass as the final piece to construct hybrid mesons Ma, Zi-Xuan Huang, Qi Chen, Rui Wang, Li-Ming Hu, Xiao-Huang Tan, Yue He, Jun Huang, Hong-Xia High Energy Physics - Phenomenology In this letter, we propose that a proper constituent gluon mass $m_g$=450 MeV can be applied to identify the hybrids composed of quarks and gluons. By investigating the spectra and decay widths of the light hybrids $(q\bar{q}g)$ with $J^P=1^{-+}$, we find the $π_1(1600)$ and $η_1(1855)$ may not be explained as $1^{-+}$ hybrids, simultaneously, and the $η_1(1855)$ observed by BESIII may not be a hybrid. In addition, we predict an existence of a hybrid $η_1(1640)$, which can be verified by searching the $a_1(1260)π$ channel. Moreover, we suggest the $K_1(1270)\bar{K}$ and $K_1(1270)π$ as the golden channels to search for an isospin-0 and an isospin-$\frac{1}{2}$ hybrids, respectively. |
| title | Proper constituent gluon mass as the final piece to construct hybrid mesons |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2504.05818 |