Beautiful and charming chromodipole moments

被引：12

作者：

Haisch, Ulrich ^{[1
]}

Koole, Gabriel ^{[1
]}

机构：

[1] Max Planck Inst Phys & Astrophys, Fohringer Ring 6, D-80805 Munich, Germany

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2021年 / 2021卷 / 09期

关键词：

Beyond Standard Model; Effective Field Theories; ELECTRIC-DIPOLE-MOMENT; CP-VIOLATION;

D O I：

10.1007/JHEP09(2021)133

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

In the context of the Standard Model effective field theory we derive direct and indirect bounds on chromodipole operators involving the bottom and charm quark. We find that the experimental upper limit on the neutron electric dipole moment puts severe constraints on the imaginary parts of the Wilson coefficients of both chromodipole operators. The magnitudes of the Wilson coefficients are instead only weakly constrained by dijet searches and Z-boson production in association with bottom-quark jets. Flavour physics does not provide meaningful bounds.

引用

页数：22

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