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

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.