Published October 2008 | Version v1
Journal article

Electric dipole moments in the MSSM reloaded

  • 1. Theory Division, CERN, CH-1211 Geneva 23 (Switzerland)
  • 2. Physics Division, National Center for Theoretical Sciences, Hsinchu, Taiwan (China)
  • 3. School of Physics and Astronomy, University of Manchester, Manchester M13 9PL (United Kingdom)

Description

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.

Availability note (English)

Available from http://dx.doi.org/10.1088/1126-6708/2008/10/049

Additional details

Publishing Information

Journal Title
Journal of High Energy Physics
Journal Volume
10
Journal Issue
2008
Journal Page Range
p. 049
ISSN
1126-6708