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Measurability of electroweak asymmetries in hadronic jets in e/sup +/e/sup -/ annihilation

Journal Article · · Phys. Rev. D; (United States)
; ; ;
Using the standard model of electroweak interactions and the Field-Feynman model for quark fragmentation we estimate the observable asymmetries of the jet-axis angular distribution in e/sup +/e/sup -/ annihilation in the PETRA-PEP energy region. To do this, rules for the selection of quark versus antiquark jets according to final hadronic channel are proposed. These rules are characterized by a calculable parameter that gives a quantitative measure of relative merit of the various channels. A particularly promising method of identifying jet flavor involves prompt leptons from heavy-quark decays. We also discuss the dependence of the observable effects on the fragmentation-model parameters and some experimental cuts. The jet asymmetries are compared with muonic asymmetries for energies of 30, 50, and 70 GeV.
Research Organization:
Department of Physics and Ames Laboratory, Iowa State University, Ames, Iowa 50011
DOE Contract Number:
W-7405-ENG-82
OSTI ID:
5847989
Journal Information:
Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 25:1; ISSN PRVDA
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
645400 -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR DISTRIBUTION
ANNIHILATION
ASYMMETRY
BASIC INTERACTIONS
DISTRIBUTION
ELECTROMAGNETIC INTERACTIONS
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
FIELD THEORIES
FRAGMENTATION
HADRONS
INTERACTIONS
JET MODEL
LEPTON-LEPTON INTERACTIONS
MATHEMATICAL MODELS
PARTICLE INTERACTIONS
PARTICLE MODELS
POSTULATED PARTICLES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARKS
WEAK INTERACTIONS