CP violation in multibody B decays from QCD factorization
We test a data-driven approach based on QCD factorization for charmless three-body B-decays by confronting it to measurements of CP violation in B⁻→ π⁻π⁺π⁻. While some of the needed non-perturbative objects can be directly extracted from data, some others can, so far, only be modelled. Although this...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Springer Berlin Heidelberg
2017
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| Online Access: | http://hdl.handle.net/1721.1/112123 |
| _version_ | 1811082407238959104 |
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| author | Klein, Rebecca Mannel, Thomas Virto, Javier Vos, K. Keri |
| author2 | Massachusetts Institute of Technology. Center for Theoretical Physics |
| author_facet | Massachusetts Institute of Technology. Center for Theoretical Physics Klein, Rebecca Mannel, Thomas Virto, Javier Vos, K. Keri |
| author_sort | Klein, Rebecca |
| collection | MIT |
| description | We test a data-driven approach based on QCD factorization for charmless three-body B-decays by confronting it to measurements of CP violation in B⁻→ π⁻π⁺π⁻. While some of the needed non-perturbative objects can be directly extracted from data, some others can, so far, only be modelled. Although this approach is currently model dependent, we comment on the perspectives to reduce this model dependence. While our model naturally accommodates the gross features of the Dalitz distribution, it cannot quantitatively explain the details seen in the current experimental data on local CP asymmetries. We comment on possible refinements of our simple model and conclude by briefly discussing a possible extension of the model to large invariant masses, where large local CP asymmetries have been measured. |
| first_indexed | 2024-09-23T12:02:36Z |
| format | Article |
| id | mit-1721.1/112123 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T12:02:36Z |
| publishDate | 2017 |
| publisher | Springer Berlin Heidelberg |
| record_format | dspace |
| spelling | mit-1721.1/1121232022-10-01T07:48:35Z CP violation in multibody B decays from QCD factorization Klein, Rebecca Mannel, Thomas Virto, Javier Vos, K. Keri Massachusetts Institute of Technology. Center for Theoretical Physics Virto, Javier We test a data-driven approach based on QCD factorization for charmless three-body B-decays by confronting it to measurements of CP violation in B⁻→ π⁻π⁺π⁻. While some of the needed non-perturbative objects can be directly extracted from data, some others can, so far, only be modelled. Although this approach is currently model dependent, we comment on the perspectives to reduce this model dependence. While our model naturally accommodates the gross features of the Dalitz distribution, it cannot quantitatively explain the details seen in the current experimental data on local CP asymmetries. We comment on possible refinements of our simple model and conclude by briefly discussing a possible extension of the model to large invariant masses, where large local CP asymmetries have been measured. 2017-11-02T18:06:32Z 2017-11-02T18:06:32Z 2017-10 2017-08 2017-10-20T10:18:11Z Article http://purl.org/eprint/type/JournalArticle 1029-8479 1126-6708 http://hdl.handle.net/1721.1/112123 Klein, Rebecca et al. "CP violation in multibody B decays from QCD factorization." Journal of High Energy Physics 2017 (October 2017): 117 © 2017 The Authors en http://dx.doi.org/10.1007/JHEP10(2017)117 Journal of High Energy Physics Creative Commons Attribution http://creativecommons.org/licenses/by/4.0/ The Author(s) application/pdf Springer Berlin Heidelberg Springer Berlin Heidelberg |
| spellingShingle | Klein, Rebecca Mannel, Thomas Virto, Javier Vos, K. Keri CP violation in multibody B decays from QCD factorization |
| title | CP violation in multibody B decays from QCD factorization |
| title_full | CP violation in multibody B decays from QCD factorization |
| title_fullStr | CP violation in multibody B decays from QCD factorization |
| title_full_unstemmed | CP violation in multibody B decays from QCD factorization |
| title_short | CP violation in multibody B decays from QCD factorization |
| title_sort | cp violation in multibody b decays from qcd factorization |
| url | http://hdl.handle.net/1721.1/112123 |
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