Electric Dipole Moments from Axion-Like Particle Dark Matter Background
High Energy Physics - Phenomenology
2025-09-17 v1
Abstract
New one- and two-loop contributions to the lepton's and nucleon's EDM, which are induced by an axion-like particle dark matter background, are examined. These contributions include effects from CP-violating ALP interactions with photons, leptons and nucleons. The contribution to the EDM is so larger it leads to new constraints on the CP violating couplings of axion-like particles, if the axion-like particle mass is smaller than eV.
Cite
@article{arxiv.2509.12869,
title = {Electric Dipole Moments from Axion-Like Particle Dark Matter Background},
author = {Jason L. Evans and Nan Li and Junyuan Lyu},
journal= {arXiv preprint arXiv:2509.12869},
year = {2025}
}