Background to t-quark signals from higher-order QCD contributions
Journal Article
·
· Phys. Rev. D; (United States)
In pp-bar collider experiments, the higher-order QCD subprocesses qq-bar..-->..gQQ-bar, qg..-->..qQQ-bar, gg..-->..gQQ-bar (with Q = c,b) can lead to events with high-p/sub T/ leptons and apparently broad jets that may fake the usual signals of t-quark production and decay. We evaluate these contributions quantitatively, with plausible approximations, and conclude that the background they provide can be largely eliminated by suitable experimental selection criteria.
- Research Organization:
- Physics Department, University of Wisconsin, Madison, Wisconsin 53706
- OSTI ID:
- 6568862
- Journal Information:
- Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 29:9; ISSN PRVDA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
645205* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions
Baryon No. = 0-- (-1987)
645400 -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYON-BARYON INTERACTIONS
COMPOSITE MODELS
DECAY
DIAGRAMS
ELEMENTARY PARTICLES
FEYNMAN DIAGRAM
FIELD THEORIES
HADRON-HADRON INTERACTIONS
INTERACTIONS
JET MODEL
LINEAR MOMENTUM
MATHEMATICAL MODELS
MATRIX ELEMENTS
NUCLEON-ANTINUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PARTON MODEL
POSTULATED PARTICLES
PROTON-ANTIPROTON INTERACTIONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARKS
TRANSVERSE MOMENTUM
Baryon No. = 0-- (-1987)
645400 -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYON-BARYON INTERACTIONS
COMPOSITE MODELS
DECAY
DIAGRAMS
ELEMENTARY PARTICLES
FEYNMAN DIAGRAM
FIELD THEORIES
HADRON-HADRON INTERACTIONS
INTERACTIONS
JET MODEL
LINEAR MOMENTUM
MATHEMATICAL MODELS
MATRIX ELEMENTS
NUCLEON-ANTINUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PARTON MODEL
POSTULATED PARTICLES
PROTON-ANTIPROTON INTERACTIONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARKS
TRANSVERSE MOMENTUM