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State of electroweak interactions

Journal Article · · AIP Conf. Proc.; (United States)
DOI:https://doi.org/10.1063/1.34448· OSTI ID:5469588

I assess what we know and what we do not know about the electroweak interactions. In particular, I argue that existing data on the electroweak parameters rho, sin/sup 2/theta/sub w/ and G/sub F/ and on the recently discovered W/sup + -/ and Z/sup 0/ allow us reasonably to conclude that: (1) the W/sup + -/ and Z/sup 0/ truly are the elementary massive gauge bosons of SU(2) x U(1) and not the composite bosons of a new strong interaction, and (2) the electroweak scalar sector consists of weak doublets only. The most important thing we do not know is everything else about the electroweak scalar sector. In the hope of soon shedding light on this issue, a new method of searching for electroweak scalars in existing p-barp colliders is proposed. The basis of this method is that the branching ratio of W/sup + -/ to decay to a charged plus a neutral scalar (expected in non-minimal SU(2) x U(1) models) can be as large as 1-2%, with detectable rates up to scalar masses of approx.35 GeV.

Research Organization:
Department of Physics, Texas A and M University, College Station, Texas 77843
DOE Contract Number:
AC02-76ER01545
OSTI ID:
5469588
Journal Information:
AIP Conf. Proc.; (United States), Journal Name: AIP Conf. Proc.; (United States) Vol. 112:1; ISSN APCPC
Country of Publication:
United States
Language:
English

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Related Subjects

645202 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Electromagnetic Interactions & Properties
645203* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
ELEMENTARY PARTICLES
FIELD THEORIES
HIGGS BOSONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
LIE GROUPS
MATHEMATICAL MODELS
PARTICLE MODELS
POSTULATED PARTICLES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARKS
SU GROUPS
SU-2 GROUPS
SYMMETRY GROUPS
U GROUPS
U-1 GROUPS
UNIFIED GAUGE MODELS
UNIFIED-FIELD THEORIES
WEINBERG-SALAM GAUGE MODEL