QCD corrections to t r arrow W sup + + b

Journal Article · Sat Jun 01 04:00:00 EDT 1991 · Physical Review, D (Particles Fields); (USA)

DOI:https://doi.org/10.1103/PhysRevD.43.3759· OSTI ID:5592211

Li, C S; Oakes, R J; Yuan, T C ^[1]

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1. Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208 (USA)

The {ital O}({alpha}{sub {ital s}}) QCD corrections to the process {ital t}{r arrow}{ital W}{sup +}{ital b} are calculated in the standard model for a heavy top quark. For {ital m}{sub {ital W}}/{ital M}{sub {ital t}}{lt}0.8, the corrections reduce the partial width by 10% relative to the tree-level result. This reduction of the top-quark width enhances the signal for {ital t{bar t}} bound-state resonances near threshold in {ital e}{sup +}{ital e{minus}} collisions, studied recently by Strassler and Peskin.

• DOE Contract Number: AC02-76ER02289
• OSTI ID: 5592211
• Journal Information: Physical Review, D (Particles Fields); (USA), Journal Name: Physical Review, D (Particles Fields); (USA) Vol. 43:11; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

645400* -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BEAUTY PARTICLES
BOSONS
BOUND STATE
DECAY
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
ENERGY
FERMIONS
FIELD THEORIES
GLUONS
INTERACTIONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
LEPTON-LEPTON INTERACTIONS
MASS RENORMALIZATION
MATHEMATICAL MODELS
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
POSTULATED PARTICLES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARKS
RENORMALIZATION
SELF-ENERGY
SEMILEPTONIC DECAY
STANDARD MODEL
THRESHOLD ENERGY
TOP PARTICLES
UNIFIED GAUGE MODELS
W PLUS BOSONS
WEAK PARTICLE DECAY