Strongly interacting Higgs effects on the masses of gauge bosons

Thesis/Dissertation · Wed Jan 01 04:00:00 EST 1986

OSTI ID:6939776

Katsumata, H

The author studies the radiative corrections to the W/sup +/-/ and Z masses in the large Higgs mass limit (m/sub H/ > 1 TeV). Since the unitarity limit of the standard SU(2) x U(1) electroweak model at the tree level is m/sub H/ approx. = 1 TeV, one must go beyond the perturbation theory. The author studies the SU(N) x U(1) model by the 1/N expansion, keeping the lowest order in the gauge couplings (g/sup 2/N, g'/sup 2/N) and summing up all orders of the Higgs self-coupling (lambdaN). He shows that the effects of the strong interaction on the vector boson mass shifts saturate and how the mass shifts can be written. The radiative corrections are determined by the electroweak scale v/sup 2//N. This cannot be inferred from the perturbation expansion which is a series in increasing powers of the Higgs mass. Also this shows the saturation effect which is stronger than Veltman's screening theorem in the perturbation expansion. He also argues that this saturation of the strong interaction effects is due to unitarity and is not peculiar to the 1/N expansion.

• Research Organization: Michigan Univ., Ann Arbor (USA)
• OSTI ID: 6939776
• Country of Publication: United States
• Language: English

Related Subjects

645203 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Weak Interactions & Properties
645400* -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
CORRECTIONS
ELEMENTARY PARTICLES
HIGGS BOSONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
MASS
MATHEMATICAL MODELS
PARTICLE MODELS
POSTULATED PARTICLES
RADIATIVE CORRECTIONS
SERIES EXPANSION
UNIFIED GAUGE MODELS
UNITARITY
W MINUS BOSONS
W PLUS BOSONS
Z NEUTRAL BOSONS