# Electric dipole moment of the electron in the model with extra Higgs bosons

## TL;DR

This paper investigates how an extended Higgs sector with additional doublet and triplet fields can induce a measurable electron electric dipole moment, consistent with experimental constraints, and explores potential collider signatures.

## Contribution

It introduces a model with extra Higgs bosons that can generate observable electron EDMs within experimental bounds, linking Higgs sector extensions to CP violation.

## Key findings

- Electron EDM can reach current experimental upper bounds.
- Certain parameter ranges are compatible with observed Higgs properties.
- Extra Higgs bosons may produce detectable signals in collider experiments.

## Abstract

The Higgs sector which is extended from the standard model could generally become an origin of CP violation. In the model with two doublet and one triplet Higgs fields on SU(2) symmetry, we study the electric dipole moment (EDM) of the electron whose non-vanishing value has not yet been established experimentally. The Higgs potential is assumed to be consistent with supersymmetric theory, though supersymmetric particles are not taken into consideration explicitly. While the parameter values of the model are severely constrained by the properties of the observed Higgs boson, certain ranges lead to a magnitude for the electron EDM around the experimental upper bound. Signatures of the extra Higgs bosons in collision experiments are discussed briefly.