CP violation via electroweak gauginos and the electric dipole moment of the electron

Journal Article · Mon May 20 00:00:00 EDT 1991 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.66.2565· OSTI ID:5571749

Nath, P ^[1]

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1. Department of Physics, Northeastern University, Boston, Massachusetts 02115 (US)

The effective Lagrangian which exhibits explicitly the transmission of the {ital CP}-violating phases induced via the electroweak gaugino masses below the scale of the spontaneous breaking of SU(2){sub {ital L}}{times}U{sub {ital y}}(1) electroweak gauge symmetry is deduced. The formalism is used to compute the one-loop electric dipole moment of the electron including the full set of neutralino states. Contributions of neutralinos other than the photino are found to be significant. It is shown that the current data excludes maximal {ital CP} violation in the electroweak sector except for selectron masses {approx gt}200 GeV and photino masses {approx gt}750 GeV.

• OSTI ID: 5571749
• Journal Information: Physical Review Letters; (USA), Vol. 66:20; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ELECTRONS
ELECTRIC DIPOLE MOMENTS
LAGRANGIAN FIELD THEORY
CP INVARIANCE
COUPLING CONSTANTS
GAUGE INVARIANCE
MASS
NUMERICAL ANALYSIS
PERTURBATION THEORY
QUANTUM CHROMODYNAMICS
STANDARD MODEL
DIPOLE MOMENTS
ELECTRIC MOMENTS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
INVARIANCE PRINCIPLES
LEPTONS
MATHEMATICAL MODELS
MATHEMATICS
PARTICLE MODELS
QUANTUM FIELD THEORY
UNIFIED GAUGE MODELS
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