Bottom baryon decays into light meson and dark baryon within perturbative QCD approach
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arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| Acceso en línea: | |
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| _version_ | 1866909727244419072 |
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| author | Xing, Ye Shi, Yu-Ji Hu, Xiao-Hui |
| author_facet | Xing, Ye Shi, Yu-Ji Hu, Xiao-Hui |
| contents | In the work, we study the production of dark baryon $ψ$ with the bottom-baryon decays $Λ_b\to M ψ$ under the perturbative QCD approach. For the Type-I/II models in B-Mesogenesis scenarios, we calculate the form factors for bottom-baryon decays into meson. Using these results, we obtain branching ratios for $Λ_b\to M ψ$ decays. The PQCD approach calculations show these branching ratios reach $\mathcal{O}(10^{-5})$ in both models, with $\mathcal{B}(Λ_b\to Kψ)$ specifically reaching $\mathcal{O}(10^{-4})$ in Type-II. These accessible magnitudes make the predictions testable at the LHCb and B-factories with improved precision. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_05181 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Bottom baryon decays into light meson and dark baryon within perturbative QCD approach Xing, Ye Shi, Yu-Ji Hu, Xiao-Hui High Energy Physics - Phenomenology In the work, we study the production of dark baryon $ψ$ with the bottom-baryon decays $Λ_b\to M ψ$ under the perturbative QCD approach. For the Type-I/II models in B-Mesogenesis scenarios, we calculate the form factors for bottom-baryon decays into meson. Using these results, we obtain branching ratios for $Λ_b\to M ψ$ decays. The PQCD approach calculations show these branching ratios reach $\mathcal{O}(10^{-5})$ in both models, with $\mathcal{B}(Λ_b\to Kψ)$ specifically reaching $\mathcal{O}(10^{-4})$ in Type-II. These accessible magnitudes make the predictions testable at the LHCb and B-factories with improved precision. |
| title | Bottom baryon decays into light meson and dark baryon within perturbative QCD approach |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2508.05181 |