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Electric dipole moments in the MSSM reloaded

2008/08/31 by John Ellis, Jae Sik Lee, Apostolos Pilaftsis · 185 citations
Physics and Astronomy · #CP violation #Dark Matter and Cosmic Phenomena #Fermion #Higgs boson #Lepton #Minimal Supersymmetric Standard Model #Neutrino Physics Research #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Quantum chromodynamics #Quark #Resummation #Supersymmetry #Yukawa potential #hep-ph

paper · pdf · doi:10.1088/1126-6708/2008/10/049

published in Journal of High Energy Physics 2008(10), 049 (Springer Nature) · 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

openalex publication_date 2008/10/13 · arxiv created 2009/04/27 · arxiv updated 2009/12/01 · openalex created_date 2020/11/23 · openalex updated_date 2026/08/05

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.

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