Fully heavy pentaquark states from QCD sum rules
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arXiv
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866909872571809792 |
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| author | Jing, Zheng-Lei Zhang, Jian-Rong |
| author_facet | Jing, Zheng-Lei Zhang, Jian-Rong |
| contents | In this work, we systematically investigate the mass spectra of fully heavy pentaquark states $QQQQ\bar{Q}$ within the framework of QCD sum rules. Employing three configurations of interpolating currents, we obtain the following mass predictions: for the $cccc\bar{c}$ states, the masses are determined to be $7.79^{+0.18}_{-0.17}$ GeV, $7.76^{+0.23}_{-0.18}$ Gev, $7.81^{+0.17}_{-0.18}$ GeV; while for the $bbbb\bar{b}$ states, the corresponding masses are calculated as $22.35^{+0.19}_{-0.19}$ GeV, $22.27^{+0.22}_{-0.22}$ GeV, $22.37^{+0.18}_{-0.20}$ GeV, respectively. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2507_16522 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Fully heavy pentaquark states from QCD sum rules Jing, Zheng-Lei Zhang, Jian-Rong High Energy Physics - Phenomenology High Energy Physics - Experiment In this work, we systematically investigate the mass spectra of fully heavy pentaquark states $QQQQ\bar{Q}$ within the framework of QCD sum rules. Employing three configurations of interpolating currents, we obtain the following mass predictions: for the $cccc\bar{c}$ states, the masses are determined to be $7.79^{+0.18}_{-0.17}$ GeV, $7.76^{+0.23}_{-0.18}$ Gev, $7.81^{+0.17}_{-0.18}$ GeV; while for the $bbbb\bar{b}$ states, the corresponding masses are calculated as $22.35^{+0.19}_{-0.19}$ GeV, $22.27^{+0.22}_{-0.22}$ GeV, $22.37^{+0.18}_{-0.20}$ GeV, respectively. |
| title | Fully heavy pentaquark states from QCD sum rules |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2507.16522 |