Systematic analysis of the form factors of $B_c\rightarrowη_c$, $J/ψ$ and corresponding weak decays
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arXiv
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| Hauptverfasser: | , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866910487050977280 |
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| author | Yu, Guo-Liang Wu, Bin Lu, Jie Wang, Zhi-Gang |
| author_facet | Yu, Guo-Liang Wu, Bin Lu, Jie Wang, Zhi-Gang |
| contents | The form factors of $B_c\rightarrowη_c$ and $B_c\rightarrow J/ψ$ are analyzed in the framework of three-point QCD sum rules. In these analyses, the contributions of the vacuum condensate terms $\langle g_{s}^{2}GG\rangle$ and $\langle g_{s}^{3}GGGf\rangle$ are considered. In addition, the decay widths and branching ratios of several decay channels are obtained by using the calculated form factors. These decay processes include the nonleptonic decays of $B_c^- \to η_c π^-$, $η_c K^-$, $η_c ρ^-$, $η_c K^{*-}$, $B_c^- \to J/ψπ^-$, $J/ψK^-$, $J/ψρ^-$, $J/ψK^{*-}$, and the semileptonic decays of $B_c^- \to η_c \mathcal{l} \barν$, $B_c^- \to J/ψ\mathcal{l} \barν$. These results about the form factors and decay properties of $B_c$ meson provide useful information for us to study the heavy-quark dynamics and find new physics(NP) beyond Standard Model(SM). |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2406_08181 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Systematic analysis of the form factors of $B_c\rightarrowη_c$, $J/ψ$ and corresponding weak decays Yu, Guo-Liang Wu, Bin Lu, Jie Wang, Zhi-Gang High Energy Physics - Phenomenology The form factors of $B_c\rightarrowη_c$ and $B_c\rightarrow J/ψ$ are analyzed in the framework of three-point QCD sum rules. In these analyses, the contributions of the vacuum condensate terms $\langle g_{s}^{2}GG\rangle$ and $\langle g_{s}^{3}GGGf\rangle$ are considered. In addition, the decay widths and branching ratios of several decay channels are obtained by using the calculated form factors. These decay processes include the nonleptonic decays of $B_c^- \to η_c π^-$, $η_c K^-$, $η_c ρ^-$, $η_c K^{*-}$, $B_c^- \to J/ψπ^-$, $J/ψK^-$, $J/ψρ^-$, $J/ψK^{*-}$, and the semileptonic decays of $B_c^- \to η_c \mathcal{l} \barν$, $B_c^- \to J/ψ\mathcal{l} \barν$. These results about the form factors and decay properties of $B_c$ meson provide useful information for us to study the heavy-quark dynamics and find new physics(NP) beyond Standard Model(SM). |
| title | Systematic analysis of the form factors of $B_c\rightarrowη_c$, $J/ψ$ and corresponding weak decays |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2406.08181 |