CP-odd phase correlations and electric dipole moments

Journal Article · Sat Oct 01 04:00:00 EDT 2005 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.72.075001· OSTI ID:20713663

Olive, Keith A ^[1]; Pospelov, Maxim ^[2]; Ritz, Adam ^[3]; Santoso, Yudi ^[2]

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1. W.I. Fine Theoretical Physics Institute, School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455 (United States)
2. Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1 (Canada)
3. Theoretical Division, Department of Physics, CERN, Geneva 23, CH-1211 (Switzerland)

We revisit the constraints imposed by electric dipole moments (EDMs) of nucleons and heavy atoms on new CP-violating sources within supersymmetric theories. We point out that certain two-loop renormalization group corrections induce significant mixing between the basis-invariant CP-odd phases. In the framework of the constrained minimal supersymmetric standard model, the CP-odd invariant related to the soft trilinear A-phase at the grand unified theory (GUT) scale, {theta}{sub A}, induces nontrivial and distinct CP-odd phases for the three gaugino masses at the weak scale. The latter give one-loop contributions to EDMs enhanced by tan{beta}, and can provide the dominant contribution to the electron EDM induced by {theta}{sub A}. We perform a detailed analysis of the EDM constraints within the constrained minimal supersymmetric standard model, exhibiting the reach, in terms of sparticle spectra, which may be obtained assuming generic phases, as well as the limits on the CP-odd phases for some specific parameter points where detailed phenomenological studies are available. We also illustrate how this reach will expand with results from the next generation of experiments which are currently in development.

• OSTI ID: 20713663
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 7 Vol. 72; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CORRECTIONS
CORRELATIONS
CP INVARIANCE
ELECTRIC DIPOLE MOMENTS
ELECTRONS
MIXING
NUCLEONS
RENORMALIZATION
REST MASS
SPARTICLES
STANDARD MODEL
SUPERSYMMETRY