Moderate Supersymmetric CP Violation

Abstract

It is well known that supersymmetry (SUSY) gives neutron and electron electric dipole moments ($d_n$ and $d_e$) which are too large by about $10^3$. If we assume a SUSY model cannot contain fine-tunings or large mass scales, then one must require that the SUSY breaking mechanism give real soft breaking parameters, in which case the minimal SUSY model has no $CP$ violation other than from the CKM matrix (besides possible strong $CP$ violating effects). We show that in non-minimal SUSY models, a moderate amount of $CP$ violation can be induced through one loop corrections to the scalar potential, giving an effective phase of order $10^{-3}$, and thus implying $d_n$ and $d_e$ can be near their current experimental bounds $naturally$. This moderate amount of SUSY $CP$ violation could also prove important for models of electroweak baryogenesis. We illustrate our results with a specific model.

19pp plain LATEX, 1 fig (by EMAIL request), TRI-PP-93-86. (Some clarifying comments about renormalizability added--version to appear in Phys. Rev. D)

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Cited by in corpus (11)

• The Next-to-Minimal Supersymmetric Standard Model
• The Chromoelectric and Purely Gluonic Operator Contributions to the Neutron Electric Dipole Moment in N=1 Supergravity
• Constraints on supersymmetric soft phases from renormalization group relations
• Low ${\alpha }_{strong}(M_Z)$, Intermediate Scale SUSY SO(10) GUT and Its Implications
• T violation in $B\to K^{\ast }{\ell }^{+}{\ell }^{-}$ from SUSY
• CP Violation in Hyperon Decays from SUSY with Hermitian Yukawa and A Matrices
• On-Shell neutral Higgs bosons in the NMSSM with complex parameters
• Search For Non-Standard Model CP/T violation At Tau-Charm Factory
• Rare kaon decays in SUSY with non-universal A terms
• Non-Universal Gaugino Masses in the NMSSM
• Implication of scalar-pseudoscalar mixing on ${\epsilon }^{\prime }/\epsilon$ in SUSY models