Second-order corrections to the muon anomalous magnetic moment in alternative electroweak models

Journal Article · Tue Jan 01 00:00:00 EST 1985 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.31.105· OSTI ID:6211931

Moore, S R; Whisnant, K; Young, B

We study the second-order weak correction to the muon anomalous magnetic moment in alternative electroweak gauge theories. The gauge-boson contributions are constrained by low-energy weak-interaction phenomenology. We examine the Higgs-boson contributions in three classes of models and find that they are potentially the dominant effect. Contributions of lepton-number-violating Higgs-boson interactions are calculated and included in the analysis. Severe limits on the spontaneous-symmetry-breaking scales and Yukawa couplings are found in some scenarios which have a separate scale for fermion masses, including the standard model with more than one doublet and a left-right model which naturally explains small neutrino masses. Higgs-boson effects may be detectable when order-of-magnitude improvements are made in the measurement of the muon anomalous magnetic moment.

• Research Organization: Department of Physics and Ames Laboratory, Iowa State University, Ames, Iowa 50011
• OSTI ID: 6211931
• Journal Information: Phys. Rev. D; (United States), Vol. 31:1
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
MUONS
MAGNETIC MOMENTS
ELECTROMAGNETIC INTERACTIONS
GAUGE INVARIANCE
HIGGS BOSONS
LEPTON NUMBER
MASS
NEUTRINOS
QUANTUM ELECTRODYNAMICS
SYMMETRY BREAKING
WEAK INTERACTIONS
BASIC INTERACTIONS
ELECTRODYNAMICS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
INTERACTIONS
INVARIANCE PRINCIPLES
LEPTONS
MASSLESS PARTICLES
POSTULATED PARTICLES
QUANTUM FIELD THEORY
645202* - High Energy Physics- Particle Interactions & Properties-Theoretical- Electromagnetic Interactions & Properties