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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2411.02836 |
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| _version_ | 1866912221679845376 |
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| author | Gui, Yun-Han Yang, Mao-Zhi |
| author_facet | Gui, Yun-Han Yang, Mao-Zhi |
| contents | We study the decay processes of $B\rightarrow ρη$, $ρη^{\prime}$ in the perturbative quantum chromodynamics (QCD) approach with a few improvements incorporated in it, where the contributions with large momentum transfer are calculated perturbatively, and the contributions with lower energy scale are treated by introducing soft transition form factors. In addition, color-octet contributions are introduced which are essentially long-distance contributions. With reasonable input parameters selected, we find that the theoretical results of the branching ratios and $CP$ violations are all consistent with experimental data. We also predict some unmeasured quantities, which can be tested by experiment in the future. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_02836 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Study of $B\rightarrow ρη$, $ρη^{\prime}$ decays in the modified perturbative QCD approach Gui, Yun-Han Yang, Mao-Zhi High Energy Physics - Phenomenology We study the decay processes of $B\rightarrow ρη$, $ρη^{\prime}$ in the perturbative quantum chromodynamics (QCD) approach with a few improvements incorporated in it, where the contributions with large momentum transfer are calculated perturbatively, and the contributions with lower energy scale are treated by introducing soft transition form factors. In addition, color-octet contributions are introduced which are essentially long-distance contributions. With reasonable input parameters selected, we find that the theoretical results of the branching ratios and $CP$ violations are all consistent with experimental data. We also predict some unmeasured quantities, which can be tested by experiment in the future. |
| title | Study of $B\rightarrow ρη$, $ρη^{\prime}$ decays in the modified perturbative QCD approach |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2411.02836 |