A precise electron EDM constraint on CP-odd heavy-quark Yukawas

被引：8

作者：

Brod, Joachim ^{[1
]}

Polonsky, Zachary ^{[2
]}

Stamou, Emmanuel ^{[3
]}

机构：

[1] Univ Cincinnati, Dept Phys, 345 Clifton Ct, Cincinnati, OH 45221 USA

[2] Univ Zurich, Phys Inst, CH-8057 Zurich, Switzerland

[3] TU Dortmund Univ, Dept Phys, Otto Hahn Str 4, D-44227 Dortmund, Germany

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2024年 / 06期

基金：

欧洲研究理事会; 瑞士国家科学基金会;

关键词：

Electric Dipole Moments; CP Violation; Higgs Properties; DIPOLE MOMENT;

D O I：

10.1007/JHEP06(2024)091

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：

CP-odd Higgs couplings to bottom and charm quarks arise in many extensions of the standard model and are of potential interest for electroweak baryogenesis. These couplings induce a contribution to the electron EDM. The experimental limit on the latter then leads to a strong bound on the CP-odd Higgs couplings. We point out that this bound receives large QCD corrections, even though it arises from a leptonic observable. We calculate the contribution of CP-odd Higgs couplings to the bottom and charm quarks in renormalisation-group improved perturbation theory at next-to-leading order in the strong interaction, thereby reducing the uncertainty to a few percent.

引用

页数：22

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