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/10.1088/1126-6708/2008/10/049Additional details
Identifiers
Publishing Information
- Journal Title
- Journal of High Energy Physics
- Journal Volume
- 10
- Journal Issue
- 2008
- Journal Page Range
- p. 049
- ISSN
- 1126-6708
INIS
- Country of Publication
- Italy
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 41111993
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- CORRECTIONS; CP INVARIANCE; DEUTERONS; ELECTRIC DIPOLE MOMENTS; FLAVOR MODEL; HIGGS BOSONS; HIGGS MODEL; LEPTONS; MERCURY; NEUTRONS; QUARKS; SUPERSYMMETRY; THALLIUM; YUKAWA POTENTIAL
- Descriptors DEC
- BARYONS; BOSONS; CHARGED PARTICLES; COMPOSITE MODELS; DIPOLE MOMENTS; ELECTRIC MOMENTS; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; HADRONS; INVARIANCE PRINCIPLES; MATHEMATICAL MODELS; METALS; NUCLEAR POTENTIAL; NUCLEONS; PARTICLE MODELS; POSTULATED PARTICLES; POTENTIALS; QUARK MODEL; SYMMETRY