The flavor of UV physics
Abstract New physics not far above the TeV scale should leave a pattern of virtual effects in observables at lower energies. What do these effects tell us about the flavor structure of a UV theory? Within the framework of the Standard Model Effective Field Theory (SMEFT), we resolve the flavor struc...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2021-05-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP05(2021)257 |
| _version_ | 1819015904735789056 |
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| author | Sebastian Bruggisser Ruth Schäfer Danny van Dyk Susanne Westhoff |
| author_facet | Sebastian Bruggisser Ruth Schäfer Danny van Dyk Susanne Westhoff |
| author_sort | Sebastian Bruggisser |
| collection | DOAJ |
| description | Abstract New physics not far above the TeV scale should leave a pattern of virtual effects in observables at lower energies. What do these effects tell us about the flavor structure of a UV theory? Within the framework of the Standard Model Effective Field Theory (SMEFT), we resolve the flavor structure of the Wilson coefficients in a combined analysis of top-quark and B-physics observables. We assume that the Yukawa couplings are the only sources of flavor symmetry breaking, a framework known as Minimal Flavor Violation. Our fits to LHC and b-factory measurements show that combining top and bottom observables is crucial to pin down possible sources of flavor breaking in a UV theory. This analysis includes the full analytic expansion of SMEFT coefficients in Minimal Flavor Violation and a detailed study of SMEFT effects in b → s flavor transitions. |
| first_indexed | 2024-12-21T02:39:09Z |
| format | Article |
| id | doaj.art-66c3c5639a9c4022bfd9b35b0292f51b |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-21T02:39:09Z |
| publishDate | 2021-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-66c3c5639a9c4022bfd9b35b0292f51b2022-12-21T19:18:43ZengSpringerOpenJournal of High Energy Physics1029-84792021-05-012021515310.1007/JHEP05(2021)257The flavor of UV physicsSebastian Bruggisser0Ruth Schäfer1Danny van Dyk2Susanne Westhoff3Institute for Theoretical Physics, Heidelberg UniversityInstitute for Theoretical Physics, Heidelberg UniversityPhysik Department, Technische Universität MünchenInstitute for Theoretical Physics, Heidelberg UniversityAbstract New physics not far above the TeV scale should leave a pattern of virtual effects in observables at lower energies. What do these effects tell us about the flavor structure of a UV theory? Within the framework of the Standard Model Effective Field Theory (SMEFT), we resolve the flavor structure of the Wilson coefficients in a combined analysis of top-quark and B-physics observables. We assume that the Yukawa couplings are the only sources of flavor symmetry breaking, a framework known as Minimal Flavor Violation. Our fits to LHC and b-factory measurements show that combining top and bottom observables is crucial to pin down possible sources of flavor breaking in a UV theory. This analysis includes the full analytic expansion of SMEFT coefficients in Minimal Flavor Violation and a detailed study of SMEFT effects in b → s flavor transitions.https://doi.org/10.1007/JHEP05(2021)257Beyond Standard ModelEffective Field TheoriesHeavy Quark Physics |
| spellingShingle | Sebastian Bruggisser Ruth Schäfer Danny van Dyk Susanne Westhoff The flavor of UV physics Journal of High Energy Physics Beyond Standard Model Effective Field Theories Heavy Quark Physics |
| title | The flavor of UV physics |
| title_full | The flavor of UV physics |
| title_fullStr | The flavor of UV physics |
| title_full_unstemmed | The flavor of UV physics |
| title_short | The flavor of UV physics |
| title_sort | flavor of uv physics |
| topic | Beyond Standard Model Effective Field Theories Heavy Quark Physics |
| url | https://doi.org/10.1007/JHEP05(2021)257 |
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