Model-independent description of $B\rightarrow D π\ell ν$ decays
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866913284561567744 |
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| author | Gustafson, Erik J. Herren, Florian Van de Water, Ruth S. van Tonder, Raynette Wagman, Michael L. |
| author_facet | Gustafson, Erik J. Herren, Florian Van de Water, Ruth S. van Tonder, Raynette Wagman, Michael L. |
| contents | In this contribution we present a novel, model-independent description of semileptonic $B\rightarrow D π\ell ν$ decays. In addition, we discuss recent developments in the understanding of coupled-channel $D π$-$D η$-$D_s K$ S-wave scattering and, for the first time, apply them to semileptonic decays. We not only obtain model-independent predictions for kinematic distributions in $B\rightarrow D π\ell ν$ decays, but also rule out the hypothesis that the gap between the inclusive $B\rightarrow X\ellν$ branching fraction and the sum over exclusive channels is made up predominantly by $B\rightarrow D^{(\ast)} η\ell ν$ decays. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_17501 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Model-independent description of $B\rightarrow D π\ell ν$ decays Gustafson, Erik J. Herren, Florian Van de Water, Ruth S. van Tonder, Raynette Wagman, Michael L. High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Lattice In this contribution we present a novel, model-independent description of semileptonic $B\rightarrow D π\ell ν$ decays. In addition, we discuss recent developments in the understanding of coupled-channel $D π$-$D η$-$D_s K$ S-wave scattering and, for the first time, apply them to semileptonic decays. We not only obtain model-independent predictions for kinematic distributions in $B\rightarrow D π\ell ν$ decays, but also rule out the hypothesis that the gap between the inclusive $B\rightarrow X\ellν$ branching fraction and the sum over exclusive channels is made up predominantly by $B\rightarrow D^{(\ast)} η\ell ν$ decays. |
| title | Model-independent description of $B\rightarrow D π\ell ν$ decays |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Lattice |
| url | https://arxiv.org/abs/2403.17501 |