A Precise Electron EDM Constraint on CP-odd Heavy-Quark Yukawas

Abstract

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.

21 pages, 4 figures, 1 table; updated numerics, extended discussion, added references. Version as published in JHEP

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Cited by in corpus (4)

• Electron EDM and $\Gamma (\mu \to e\gamma )$ in the 2HDM
• Bubble Trouble: a Review on Electroweak Baryogenesis
• The Electric Dipole Moment of the electron in the decoupling limit of the aligned Two-Higgs Doublet Model
• Sensitivity to $\mathcal{C}\mathcal{P}$-violating effective couplings in the top-Higgs sector