Fuentes-Martín, Javier; Isidori, Gino; Pagès, Julie; Yamamoto, Kei (2020). With or without U(2)? Probing non-standard flavor and helicity structures in semileptonic B decays. Physics Letters B, 800:135080.
Motivated by the recent hints of lepton flavor universality violation observed in semileptonic B decays, we analyze how to test flavor and helicity structures of the corresponding amplitudes in view of future data. We show that the general assumption that such non-standard effects are controlled by a flavor symmetry, minimally broken as in the Standard Model Yukawa sector, leads to stringent predictions on leptonic and semileptonic B decays.
Motivated by the recent hints of lepton flavor universality violation observed in semileptonic B decays, we analyze how to test flavor and helicity structures of the corresponding amplitudes in view of future data. We show that the general assumption that such non-standard effects are controlled by a flavor symmetry, minimally broken as in the Standard Model Yukawa sector, leads to stringent predictions on leptonic and semileptonic B decays.
| Item Type: | Journal Article, refereed, original work |
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| Communities & Collections: | 07 Faculty of Science > Physics Institute |
| Dewey Decimal Classification: | 530 Physics |
| Scopus Subject Areas: | Physical Sciences > Nuclear and High Energy Physics |
| Uncontrolled Keywords: | Nuclear and High Energy Physics |
| Language: | English |
| Date: | 1 January 2020 |
| Deposited On: | 08 Jan 2020 11:34 |
| Last Modified: | 26 Jan 2022 23:24 |
| Publisher: | Elsevier |
| ISSN: | 0370-2693 |
| OA Status: | Gold |
| Free access at: | Publisher DOI. An embargo period may apply. |
| Publisher DOI: | https://doi.org/10.1016/j.physletb.2019.135080 |
| Project Information: |
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Fuentes-Martín, Javier