Electric Dipole Moments in the MSSM Reloaded

Abstract

We present a detailed study of the Thallium, neutron, Mercury and deuteron electric dipole moments (EDMs) in the CP-violating Minimal Supersymmetric extension of the Standard Model (MSSM). We take into account the complete set of one-loop graphs, the dominant Higgs-mediated two-loop diagrams, the complete CP-odd dimension-six Weinberg operator and the Higgs-mediated four-fermion operators. We improve upon earlier calculations by including the resummation effects due to CP-violating Higgs-boson mixing and to threshold corrections to the Yukawa couplings of all up- and down-type quarks and charged leptons. As an application of our study, we analyse the EDM constraints on the CPX, trimixing and Maximally CP- and Minimally Flavour-Violating (MCPMFV) scenarios. Cancellations may occur among the CP-violating contributions to the three measured EDMs arising from the 6 CP-violating phases in the MCPMFV scenario, leaving open the possibility of relatively large contributions to other CP-violating observables. The analytic expressions for the EDMs are implemented in an updated version of the code CPsuperH2.0.

61 pages, 28 figures, references added, to appear in JHEP, the overall sign of Eq.(3.17) corrected, some details of numerical results slightly changed, one more reference added, Eqs.(3.13) and (3.17) corrected

References in corpus (8)

• An Improved Experimental Limit on the Electric Dipole Moment of the Neutron
• Heavy neutrino signals at large hadron colliders
• CPsuperH2.0: an Improved Computational Tool for Higgs Phenomenology in the MSSM with Explicit CP Violation
• Resonance method of electric-dipole-moment measurements in storage rings
• B-Meson Observables in the Maximally CP-Violating MSSM with Minimal Flavour Violation
• Higgs-Higgsino-Gaugino Induced Two Loop Electric Dipole Moments
• Yukawa Interactions and Supersymmetric Electroweak Baryogenesis
• Refining the predictions of supersymmetric CP-violating models: A top-down approach

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