Higgs-boson decay into two photons as a probe of anomalous gauge couplings

Journal Article · Sun Mar 01 00:00:00 EST 1992 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.45.1575· OSTI ID:7234970

Koenig, H ^[1]

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1. Ottawa-Carleton Institute for Physics, Department of Physics, Carleton University, Colonel By Drive, Ottawa, Ontario, K1S 5B6 (Canada)

We present the results of a calculation on the influence of anomalous {gamma}{ital WW} and {gamma}{gamma}{ital WW} gauge-boson couplings on the decay of the Higgs boson into two photons. In the standard model this decay occurs via penguin diagrams with scalars, fermions, and {ital W} bosons within the loop. We show that if new physics comes in at the scale of 1 TeV, anomalous gauge couplings can lead to a large enhancement or suppression of the decay rate compared to the standard-model results depending on the parameter {lambda}{sub {gamma}} and {kappa}{sub {gamma}} in the {gamma}{ital WW} and {gamma}{gamma}{ital WW} coupling.

• OSTI ID: 7234970
• Journal Information: Physical Review, D (Particles Fields); (United States), Vol. 45:5; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
HIGGS BOSONS
PARTICLE DECAY
PHOTONS
PAIR PRODUCTION
COUPLING
FEYNMAN DIAGRAM
LAGRANGIAN FUNCTION
MAGNETIC MOMENTS
MATRIX ELEMENTS
PROPAGATOR
STANDARD MODEL
SUPERCONDUCTING SUPER COLLIDER
SUPERSYMMETRY
SYMMETRY BREAKING
BOSONS
DECAY
DIAGRAMS
ELEMENTARY PARTICLES
FUNCTIONS
INTERACTIONS
MASSLESS PARTICLES
MATHEMATICAL MODELS
PARTICLE MODELS
PARTICLE PRODUCTION
POSTULATED PARTICLES
STORAGE RINGS
SYMMETRY
UNIFIED GAUGE MODELS
662440* - Properties of Other Particles Including Hypothetical Particles- (1992-)
662120 - General Theory of Particles & Fields- Symmetry
Conservation Laws
Currents & Their Properties- (1992-)