The QED nonfactorizable correction to the semileptonic charmed three-body $B$ decays
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866910737197170688 |
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| author | Yang, Yueling Wang, Liting Li, Jiazhi Chang, Qin Sun, Junfeng |
| author_facet | Yang, Yueling Wang, Liting Li, Jiazhi Chang, Qin Sun, Junfeng |
| contents | In this paper, the nonfactorizable photonic corrections to the effective four-fermion vertex for the $\overline{B}$ ${\to}$ $D^{({\ast})}$ $+$ ${\ell}^{-}$ $+$ $\barν_{\ell}$ decays are considered at the quark level within SM, where ${\ell}$ $=$ $e$, $μ$ and $τ$. It is found that the QED corrections are closely related with the mass of the charged lepton. The QED contributions will enhance branching ratios, which results in the slight reduction of ratios $R(D^{(\ast)})$ and the relationship $R(D^{(\ast)})_{e}$ $<$ $R(D^{(\ast)})_μ$. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2410_06087 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | The QED nonfactorizable correction to the semileptonic charmed three-body $B$ decays Yang, Yueling Wang, Liting Li, Jiazhi Chang, Qin Sun, Junfeng High Energy Physics - Phenomenology High Energy Physics - Experiment In this paper, the nonfactorizable photonic corrections to the effective four-fermion vertex for the $\overline{B}$ ${\to}$ $D^{({\ast})}$ $+$ ${\ell}^{-}$ $+$ $\barν_{\ell}$ decays are considered at the quark level within SM, where ${\ell}$ $=$ $e$, $μ$ and $τ$. It is found that the QED corrections are closely related with the mass of the charged lepton. The QED contributions will enhance branching ratios, which results in the slight reduction of ratios $R(D^{(\ast)})$ and the relationship $R(D^{(\ast)})_{e}$ $<$ $R(D^{(\ast)})_μ$. |
| title | The QED nonfactorizable correction to the semileptonic charmed three-body $B$ decays |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2410.06087 |