$\mathbf{\Upsilon(10753)\to\Upsilon(nS)\pi^+\pi^-}$ decays induced by hadronic loop mechanism
| Autor: | Bai, Zi-Yue, Li, Yu-Shuai, Huang, Qi, Liu, Xiang, Matsuki, Takayuki |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Phys.Rev.D 105, 074007 (2022) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevD.105.074007 |
| Popis: | In this work, we investigate the $\Upsilon(10753)\to\Upsilon(nS)\pi^+\pi^-$ ($n=1,2,3$) processes by considering the hadronic loop mechanism, where $\Upsilon(10753)$ is assigned to a conventional bottomonium in the $4S$-$3D$ mixing scheme. Our results of the concerned processes own considerable branching ratios, which can reach up to the order of magnitude of $10^{-4}-10^{-3}$. We should indicate that the measured $\Gamma_{e^+e^-}\times\mathcal{B}[\Upsilon(10753)\to\Upsilon(nS)\pi^+\pi^-]$ values given by Belle can be reproduced well. This fact supports the former bottomonium assignment to the $\Upsilon(10753)$ in the $4S$-$3D$ mixing scheme. Obviously, it is a good opportunity for the ongoing Belle II experiment if the predicted result in this work can be tested further. Comment: 7 pages, 4 figures and 1 table. arXiv admin note: text overlap with arXiv:2106.14123 |
| Databáze: | arXiv |
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