New Physics in CP violating and flavour changing quark dipole transitions

被引:4
|
作者
Fajfer S. [1 ,2 ]
Kamenik J.F. [1 ,2 ]
Košnik N. [1 ,2 ]
Smolkovič A. [3 ]
Tammaro M. [1 ]
机构
[1] Jožef Stefan Institute, Jamova 39, Ljubljana
[2] Faculty of Mathematics and Physics, University of Ljubljana, Jadranska 19, Ljubljana
[3] Albert Einstein Center for Fundamental Physics, Institute for Theoretical Physics, University of Bern, Bern
关键词
CP Violation; Electric Dipole Moments; SMEFT;
D O I
10.1007/JHEP10(2023)133
中图分类号
学科分类号
摘要
We explore CP-violating (CPV) effects of heavy New Physics in flavour-changing quark dipole transitions, within the framework of Standard Model Effective Field Theory (SMEFT). First, we establish the relevant dimension six operators and consider the Renormalisation Group (RG) evolution of the appropriate Wilson coefficients. We investigate RG-induced correlations between different flavour-violating processes and electric dipole moments (EDMs) within the Minimal Flavour Violating and U(2)3 quark flavour models. At low energies, we set bounds on the Wilson coefficients of the dipole operators using CPV induced contributions to observables in non-leptonic and radiative B, D and K decays as well as the neutron and electron EDMs. This enables us to connect observable CPV effects at low energies and general NP appearing at high scales. We present bounds on the Wilson coefficients of the relevant SMEFT operators at the high scale Λ = 5 TeV, and discuss most sensitive CPV observables for future experimental searches. © 2023, The Author(s).
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