Neutron electric dipole moment due to Higgs-boson exchange in left-right-symmetric models

Journal Article · Sat Oct 31 23:00:00 EST 1992 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.46.3876· OSTI ID:7002426

Chang, D ^[1]; He, X ^[2]; Keung, W ^[3]; McKellar, B H.J. ^[4]; Wyler, D ^[5]

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1. Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208 (United States)
2. Research Center for High Energy Physics, School of Physics, University of Melbourne, Parkville, Victoria 3052 (Australia)
3. Physics Department, University of Illinois at Chicago, Chicago, Illinois 60680 (United States)
4. Institute for Nuclear Theory, University of Washington, Seattle, Washington 98105 (United States)
5. Theoretische Physik, Universitaet Zuerich, 8001 Zuerich (Switzerland)

In this paper we study the neutron electric dipole moment due to Higgs-boson exchange in left-right-symmetric models. In pseudomanifest left-right-symmetric models, the neutral Higgs contribution is smaller than that from the charged Higgs boson. The charged-Higgs-boson contribution at the two-loop level can be as large as the experimental upper bound. In non(pseudo)manifest left-right-symmetric models, the neutral-Higgs-boson exchange contribution can reach the experimental upper bound. The Higgs-boson exchange contributions can be more important than the ones from {ital W}-boson exchange due to {ital W}{sub {ital L}-}{ital W{ital R}} mixing.

• OSTI ID: 7002426
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 46:9; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662120* -- General Theory of Particles & Fields-- Symmetry
Conservation Laws
Currents & Their Properties-- (1992-)
662410 -- Properties of Baryons & Baryon Resonances-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
BOSONS
CP INVARIANCE
DIPOLE MOMENTS
ELECTRIC DIPOLE MOMENTS
ELECTRIC MOMENTS
ELEMENTARY PARTICLES
EXCHANGE INTERACTIONS
FERMIONS
HADRONS
HIGGS BOSONS
INTERACTIONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
INVARIANCE PRINCIPLES
LIE GROUPS
MASS
MATHEMATICAL MODELS
MATRICES
NEUTRONS
NUCLEONS
PARTICLE MODELS
POSTULATED PARTICLES
QUARKS
STANDARD MODEL
SU GROUPS
SU-2 GROUPS
SU-3 GROUPS
SYMMETRY BREAKING
SYMMETRY GROUPS
U GROUPS
U-1 GROUPS
UNIFIED GAUGE MODELS