Electron Electric Dipole Moment from CP Violation in the Charged Higgs Sector

Abstract

The leading contributions to the electron (or muon) electric dipole moment due to CP violation in the charged Higgs sector are at the two-loop level. A careful analysis of the model-independent contribution is provided. We also consider specific scenarios to demonstrate how charged Higgs sector CP violation can naturally give rise to large electric dipole moments. Numerical results show that the electron electric dipole moment in such models can lie at the experimentally accessible level.

Comments: resubmission now matches published version in PRL, plus adds reference to AGS proposal to measure the muon edm to 10^-24 e-cm; complete uncompressed postscript at http://hepster.phy.uic.edu/~davechao/work/default.html