Precision tests of electroweak theory

Conference · Sat Feb 29 23:00:00 EST 1992

OSTI ID:5608407

Marciano, W J

Pursuits of New Physics'' via precision measurements are surveyed. The inconsistency between world average tau lifetime-mass values and measured leptonic branching ratios is updated and a heavy neutrino solution is described. The use of R{sub {tau}} {equivalent to} {Gamma}({tau} {yields} {nu}{sub {tau}} + hadrons)/{Gamma}({tau} {yields} e{bar {nu}}{sub e}{nu}{sub {tau}}) to determine {Lambda}{sub {ovr MS}} is discussed. Constraints on the Peskin-Takeuchi S and T parameters are given. Possible evidence for low energy supersymmetry from grand unified theories is scrutinized.

• Research Organization: Brookhaven National Lab., Upton, NY (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 5608407
• Report Number(s): BNL-47278; CONF-910836--4; ON: DE92011546
• Country of Publication: United States
• Language: English

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BRANCHING RATIO
DECAY
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
HEAVY LEPTONS
INTERACTIONS
KOBAYASHI-MASKAWA MATRIX
LEPTONIC DECAY
LEPTONS
LIFETIME
MATHEMATICAL MODELS
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PARTICLE DECAY
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POSTULATED PARTICLES
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Particle Systematics-- Unified Theories & Models-- (1992-)
SUPERSYMMETRY
SYMMETRY
TAU PARTICLES
TESTING
UNIFIED GAUGE MODELS
UNIFIED-FIELD THEORIES
WEAK INTERACTIONS
WEAK PARTICLE DECAY
WEINBERG ANGLE
WEINBERG-SALAM GAUGE MODEL