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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Bibliographic Details
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
Description
Summary: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.
ISSN:1029-8479