Study of angular observables in exclusive semileptonic $B_c$ decays
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arXiv
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| Format: | Preprint |
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2023
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| author | Patnaik, Sonali Nayak, Lopamudra Sadangi, Priyanka Swain, Sanjay Singh, Rajeev |
| author_facet | Patnaik, Sonali Nayak, Lopamudra Sadangi, Priyanka Swain, Sanjay Singh, Rajeev |
| contents | In this work, we investigate angular observables such as the longitudinal polarization of charged leptons, $τ$-polarization, and forward-backward asymmetry in semileptonic $B_c$ decays. Additionally, we provide predictions for lepton flavor violating observables, the $\mathcal{R}$ ratios in the decay channels $B_c \rightarrow η_c (J/ψ) l ν_l$ and $B_c \rightarrow D (D^*) l ν_l$ across the entire $q^2$ region. Our analysis is conducted within the Relativistic Independent Quark Model, focusing on the potential model-dependent aspects of these observables. We compare our model predictions with existing lattice predictions, highlighting the strong applicability of our framework in describing $B_c$ decays. Considering the forthcoming experimental upgrades and the Run 3 data results on $B_c$ meson decays, rapid confirmation of these quantities could indicate significant discoveries of physics beyond the Standard Model. This will open up new avenues for understanding the complex flavor dynamics in heavy meson decays. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_17114 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Study of angular observables in exclusive semileptonic $B_c$ decays Patnaik, Sonali Nayak, Lopamudra Sadangi, Priyanka Swain, Sanjay Singh, Rajeev High Energy Physics - Phenomenology In this work, we investigate angular observables such as the longitudinal polarization of charged leptons, $τ$-polarization, and forward-backward asymmetry in semileptonic $B_c$ decays. Additionally, we provide predictions for lepton flavor violating observables, the $\mathcal{R}$ ratios in the decay channels $B_c \rightarrow η_c (J/ψ) l ν_l$ and $B_c \rightarrow D (D^*) l ν_l$ across the entire $q^2$ region. Our analysis is conducted within the Relativistic Independent Quark Model, focusing on the potential model-dependent aspects of these observables. We compare our model predictions with existing lattice predictions, highlighting the strong applicability of our framework in describing $B_c$ decays. Considering the forthcoming experimental upgrades and the Run 3 data results on $B_c$ meson decays, rapid confirmation of these quantities could indicate significant discoveries of physics beyond the Standard Model. This will open up new avenues for understanding the complex flavor dynamics in heavy meson decays. |
| title | Study of angular observables in exclusive semileptonic $B_c$ decays |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2312.17114 |