Abstract
We compute the complete set of Higgs-mediated chargino-neutralino two-loop contributions to the electric dipole moments of the electron and neutron in the minimal supersymmetric standard model (MSSM). We study the dependence of these contributions on the parameters that govern -violation in the MSSM gauge-gaugino-Higgs-Higgsino sector. We find that contributions mediated by the exchange of and pairs, where and are the charged and -odd Higgs scalars, respectively, are comparable to or dominate over those mediated by the exchange of neutral gauge bosons and -even Higgs scalars. We also emphasize that the result of this complete set of diagrams is essential for the full quantitative study of a number of phenomenological issues, such as electric dipole moment searches and their implications for electroweak baryogenesis.
- Received 9 July 2008
DOI:https://doi.org/10.1103/PhysRevD.78.075009
©2008 American Physical Society