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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/2404.04816 |
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| _version_ | 1866916424976433152 |
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| author | Yu, Yechun Zhang, Han Ke, Bai-Cian Yu, Yao Xiong, Zhuang Zhang, Jia-Wei |
| author_facet | Yu, Yechun Zhang, Han Ke, Bai-Cian Yu, Yao Xiong, Zhuang Zhang, Jia-Wei |
| contents | Our main objective is to derive the decay rate for the semileptonic decays $D\to V\ell^+ν_{\ell}\,(\ell=e,μ)$, where $V$ represents a vector particle. In these decays, the vector particle $V$ decays into three pseudo-scalar particles. To accomplish this, we evaluate the phase-space factor for the five-body decay with a set of eight independent variables which uniquely define a point in the phase space. We further conduct a detailed investigation of the $D\to ω\ell^+ν_{\ell}$, where $ω$ subsequently decays into $π^+π^-π^0$, within the Standard Model and in a general effective field theory description of the weak interactions at low energies. The outcomes of this study have potential applications in the measurement of $D\to ω$ form factors. These measurements can be performed using data obtained from BESIII. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_04816 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Five-body $D\to V$ Semileptonic Decays Yu, Yechun Zhang, Han Ke, Bai-Cian Yu, Yao Xiong, Zhuang Zhang, Jia-Wei High Energy Physics - Phenomenology Our main objective is to derive the decay rate for the semileptonic decays $D\to V\ell^+ν_{\ell}\,(\ell=e,μ)$, where $V$ represents a vector particle. In these decays, the vector particle $V$ decays into three pseudo-scalar particles. To accomplish this, we evaluate the phase-space factor for the five-body decay with a set of eight independent variables which uniquely define a point in the phase space. We further conduct a detailed investigation of the $D\to ω\ell^+ν_{\ell}$, where $ω$ subsequently decays into $π^+π^-π^0$, within the Standard Model and in a general effective field theory description of the weak interactions at low energies. The outcomes of this study have potential applications in the measurement of $D\to ω$ form factors. These measurements can be performed using data obtained from BESIII. |
| title | Five-body $D\to V$ Semileptonic Decays |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2404.04816 |