SMEFT top-quark effects on ΔF = 2 observables

Abstract We investigate model independent top-quark corrections to ΔF = 2 processes for the down-type quarks within the framework of the Standard Model Effective Field Theory. Dimension-six ΔF = 1 operators contribute to them through renormalization group evolutions and matching conditions. We provi...

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Main Authors: Motoi Endo, Teppei Kitahara, Daiki Ueda
Format: Article
Language:English
Published: SpringerOpen 2019-07-01
Series:Journal of High Energy Physics
Subjects:
Online Access:http://link.springer.com/article/10.1007/JHEP07(2019)182
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author Motoi Endo
Teppei Kitahara
Daiki Ueda
author_facet Motoi Endo
Teppei Kitahara
Daiki Ueda
author_sort Motoi Endo
collection DOAJ
description Abstract We investigate model independent top-quark corrections to ΔF = 2 processes for the down-type quarks within the framework of the Standard Model Effective Field Theory. Dimension-six ΔF = 1 operators contribute to them through renormalization group evolutions and matching conditions. We provide a complete one-loop matching formula from the top quarks for ΔF = 2 transitions. We also demonstrate these corrections on Δ M B s $$ \Delta {M}_{B_s} $$ in the left-right symmetric model, which are compared with the conventional calculation.
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spelling doaj.art-4469409334654a75ba54ce9c1b9130ec2022-12-22T00:00:30ZengSpringerOpenJournal of High Energy Physics1029-84792019-07-012019712910.1007/JHEP07(2019)182SMEFT top-quark effects on ΔF = 2 observablesMotoi Endo0Teppei Kitahara1Daiki Ueda2Theory Center, IPNS, KEKInstitute for Theoretical Particle Physics (TTP), Karlsruhe Institute of TechnologyThe Graduate University of Advanced Studies (Sokendai)Abstract We investigate model independent top-quark corrections to ΔF = 2 processes for the down-type quarks within the framework of the Standard Model Effective Field Theory. Dimension-six ΔF = 1 operators contribute to them through renormalization group evolutions and matching conditions. We provide a complete one-loop matching formula from the top quarks for ΔF = 2 transitions. We also demonstrate these corrections on Δ M B s $$ \Delta {M}_{B_s} $$ in the left-right symmetric model, which are compared with the conventional calculation.http://link.springer.com/article/10.1007/JHEP07(2019)182Effective Field TheoriesRenormalization Group
spellingShingle Motoi Endo
Teppei Kitahara
Daiki Ueda
SMEFT top-quark effects on ΔF = 2 observables
Journal of High Energy Physics
Effective Field Theories
Renormalization Group
title SMEFT top-quark effects on ΔF = 2 observables
title_full SMEFT top-quark effects on ΔF = 2 observables
title_fullStr SMEFT top-quark effects on ΔF = 2 observables
title_full_unstemmed SMEFT top-quark effects on ΔF = 2 observables
title_short SMEFT top-quark effects on ΔF = 2 observables
title_sort smeft top quark effects on δf 2 observables
topic Effective Field Theories
Renormalization Group
url http://link.springer.com/article/10.1007/JHEP07(2019)182
work_keys_str_mv AT motoiendo smefttopquarkeffectsondf2observables
AT teppeikitahara smefttopquarkeffectsondf2observables
AT daikiueda smefttopquarkeffectsondf2observables