Long-distance effects in $$B\rightarrow K^*\ell \ell $$B→K∗ℓℓ from analyticity
We discuss a novel approach to systematically determine the dominant long-distance contribution to B → K∗ decays in the kinematic region where the dilepton invariant mass is below the open charm threshold. This approach provides the most consistent and reliable determination to date and can be used...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
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Springer Berlin Heidelberg
2018
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| Online Access: | http://hdl.handle.net/1721.1/117104 |
| _version_ | 1811084377725075456 |
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| author | Bobeth, Christoph Chrzaszcz, Marcin van Dyk, Danny Virto, Javier |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Bobeth, Christoph Chrzaszcz, Marcin van Dyk, Danny Virto, Javier |
| author_sort | Bobeth, Christoph |
| collection | MIT |
| description | We discuss a novel approach to systematically determine the dominant long-distance contribution to B → K∗ decays in the kinematic region where the dilepton invariant mass is below the open charm threshold. This approach provides the most consistent and reliable determination to date and can be used to compute Standard Model predictions for all observables of interest, including the kinematic region where the dilepton invariant mass lies between the J/ψ and the ψ(2S) resonances. We illustrate the power of our results by performing a New Physics fit to theWilson coefficient C9. This approach is systematically improvable from theoretical and experimental sides, and applies to other decay modes of the type B → V, B → P and B → Vγ . |
| first_indexed | 2024-09-23T12:49:46Z |
| format | Article |
| id | mit-1721.1/117104 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T12:49:46Z |
| publishDate | 2018 |
| publisher | Springer Berlin Heidelberg |
| record_format | dspace |
| spelling | mit-1721.1/1171042022-10-01T11:21:44Z Long-distance effects in $$B\rightarrow K^*\ell \ell $$B→K∗ℓℓ from analyticity Bobeth, Christoph Chrzaszcz, Marcin van Dyk, Danny Virto, Javier Massachusetts Institute of Technology. Department of Physics Virto, Javier We discuss a novel approach to systematically determine the dominant long-distance contribution to B → K∗ decays in the kinematic region where the dilepton invariant mass is below the open charm threshold. This approach provides the most consistent and reliable determination to date and can be used to compute Standard Model predictions for all observables of interest, including the kinematic region where the dilepton invariant mass lies between the J/ψ and the ψ(2S) resonances. We illustrate the power of our results by performing a New Physics fit to theWilson coefficient C9. This approach is systematically improvable from theoretical and experimental sides, and applies to other decay modes of the type B → V, B → P and B → Vγ . 2018-07-25T14:26:27Z 2018-07-25T14:26:27Z 2018-06 2018-03 2018-06-06T04:30:12Z Article http://purl.org/eprint/type/JournalArticle 1434-6044 1434-6052 http://hdl.handle.net/1721.1/117104 Bobeth, Christoph, Chrzaszcz, Marcin, van Dyk, Danny. European Physical Journal C (2018) 78: 451. en https://doi.org/10.1140/epjc/s10052-018-5918-6 The European Physical Journal C Creative Commons Attribution http://creativecommons.org/licenses/by/4.0/ The Author(s) application/pdf Springer Berlin Heidelberg Springer Berlin Heidelberg |
| spellingShingle | Bobeth, Christoph Chrzaszcz, Marcin van Dyk, Danny Virto, Javier Long-distance effects in $$B\rightarrow K^*\ell \ell $$B→K∗ℓℓ from analyticity |
| title | Long-distance effects in $$B\rightarrow K^*\ell \ell $$B→K∗ℓℓ from analyticity |
| title_full | Long-distance effects in $$B\rightarrow K^*\ell \ell $$B→K∗ℓℓ from analyticity |
| title_fullStr | Long-distance effects in $$B\rightarrow K^*\ell \ell $$B→K∗ℓℓ from analyticity |
| title_full_unstemmed | Long-distance effects in $$B\rightarrow K^*\ell \ell $$B→K∗ℓℓ from analyticity |
| title_short | Long-distance effects in $$B\rightarrow K^*\ell \ell $$B→K∗ℓℓ from analyticity |
| title_sort | long distance effects in b rightarrow k ell ell b k∗ll from analyticity |
| url | http://hdl.handle.net/1721.1/117104 |
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