CP VIOLATION VIA ELECTROWEAK GAUGINOS AND THE ELECTRIC-DIPOLE MOMENT OF THE ELECTRON

The effective Lagrangian which exhibits explicitly the transmission of the CP-violating phases induced via the electroweak gaugino masses below the scale of the spontaneous breaking of SU(2)L x U-gamma(1) electroweak gauge symmetry is deduced. The formalism is used to compute the one-loop electric dipole moment of the electron including the full set of neutralino states. Contributions of neutralinos other than the photino are found to be significant. It is shown that the current data exclude maximal CP violation in the electroweak sector except for selectron masses greater-than-or-similar-to 200 GeV and photino masses greater-than-or-similar-to 750 GeV.