The flavor of UV physics

• Verfasst von: Bruggisser, Sebastian [VerfasserIn]
• Verfasst von: Schäfer, Ruth [VerfasserIn]
• Verfasst von: Dyk, Danny van [VerfasserIn]
• Verfasst von: Westhoff, Susanne [VerfasserIn]
• Titel: The flavor of UV physics
• Verf.angabe: Sebastian Bruggisser, Ruth Schäfer, Danny van Dyk and Susanne Westhoff
• E-Jahr: 2021
• Jahr: May 27, 2021
• Umfang: 53 S.
• Fussnoten: Gesehen am 16.08.2021
• Titel Quelle: Enthalten in: Journal of high energy physics
• Ort Quelle: Berlin : Springer, 1997
• Jahr Quelle: 2021
• Band/Heft Quelle: (2021), 5 vom: 27. Mai, Artikel-ID 257, Seite 1-52
• ISSN Quelle: 1029-8479
• DOI: doi:10.1007/JHEP05(2021)257
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 176711107X

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.