Top-quark polarization at the Fermilab Tevatron

Journal Article · Sun Nov 01 04:00:00 EST 1992 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.46.3789· OSTI ID:6949717

Ladinsky, G A ^[1]

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1. Department of Physics, 104 Davey Laboratory, The Pennsylvania State University, University Park, Pennsylvania 16802 (United States)

With the prospects of finding the top quark at Fermilab comes the potential for new tests of the standard model and new probes of physics at the 100-GeV scale. Though the production rate for {ital t{bar t}} pairs is expected to be small at Fermilab, it may be possible to perform a first-level study of the interactions of the top quark, including polarization effects. In this paper we discuss the standard model predictions for the polarization of a top quark produced in proton-antiproton collisions at the Fermilab Tevatron using either polarized or unpolarized hadron beams. Standard model electroweak loops predict that the single-particle polarization of the top quark perpendicular to the scatter plane is small, yet at the Born level there are a number of double-spin polarization asymmetries which produce effects observable within the statistical errors expected from a thousand events.

• DOE Contract Number: FG02-90ER40577
• OSTI ID: 6949717
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 46:9; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662230* -- Quantum Chromodynamics-- (1992-)
662340 -- Hadron Interactions-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATORS
ANGULAR MOMENTUM
ASYMMETRY
BARYON-BARYON INTERACTIONS
CYCLIC ACCELERATORS
ELEMENTARY PARTICLES
FERMILAB TEVATRON
FERMIONS
FIELD THEORIES
HADRON-HADRON INTERACTIONS
HELICITY
INTERACTIONS
MATHEMATICAL MODELS
NUCLEON-ANTINUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PARTICLE PROPERTIES
PARTONS
POLARIZED PRODUCTS
POSTULATED PARTICLES
PROTON-ANTIPROTON INTERACTIONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARKS
SPIN
STANDARD MODEL
SYNCHROTRONS
TOP PARTICLES
UNIFIED GAUGE MODELS