Bounds on new physics from electric dipole moments

TL;DR

Electric dipole moments serve as precise probes for new physics beyond the Standard Model, with the potential to constrain CP violation parameters through model-independent analysis, considering nuclear and QCD uncertainties.

Contribution

The paper provides a model-independent framework for relating EDM measurements to fundamental parameters, highlighting the importance of nuclear and QCD uncertainties.

Findings

Bounds on CP violation parameters in Two-Higgs-Doublet models

Importance of including nuclear and QCD uncertainties

Framework for translating EDM measurements into fundamental constraints

Abstract

Electric dipole moments are extremely sensitive probes for additional sources of CP violation in new physics models. The multi-scale problem of relating the high-precision measurements with neutrons, atoms and molecules to fundamental parameters can be approached model-independently to a large extent; however, care must be taken to include the uncertainties from especially nuclear and QCD calculations properly. The resulting bounds on fundamental parameters are illustrated in the context of Two-Higgs-Doublet models.