摘要
We perform a study on the predictions of electric-dipole moments of neutron, Mercury (Hg), Thallium (Tl), deuteron, and Radium (Ra) in the framework of next-to-minimal supersymmetric standard model with CP-violating parameters in the superpotential and soft-supersymmetry-breaking sector. We confine to the case in which only the physical tree-level CP phase (φλ′- φκ′), associated with the couplings of the singlet terms in the superpotential and with the vacuum-expectation-values, takes on a nonzero value. We found that the one-loop contributions from neutralinos are mostly small while the two-loop Higgs-mediated contributions of the Barr-Zee type diagrams dominate. We emphasize a scenario motivated by electroweak baryogenesis. © 2011 American Physical Society.