Yukawa correction to top-quark production at the Fermilab Tevatron

Journal Article · Wed Sep 01 00:00:00 EDT 1993 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.48.2054· OSTI ID:6216648

Stange, A ^[1]; Willenbrock, S ^[2]

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1. Physics Department, Brookhaven National Laboratory, Upton, New York 11973 (United States)
2. Physics Department, Brookhaven National Laboratory, Upton, New York 11973 (United States) Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, Illinois 60510 (United States)

We calculate the correction to [ital q[bar q]][r arrow][ital t[bar t]] of order [ital g][sup 2][ital m][sub [ital t]][sup 2]/[ital M][sub [ital W]][sup 2]. This correction, proportional to the square of the Higgs-boson Yukawa coupling to the top quark, arises from loops of Higgs bosons and the scalar component of virtual vector bosons. The Yukawa correction to the total [ital t[bar t]] production cross section at the Fermilab Tevatron in the standard Higgs model is found to be much less than the theoretical uncertainty in the cross section. However, in a two-Higgs-doublet model, Yukawa couplings are generally enhanced. The Yukawa correction can increase the total [ital t[bar t]] production cross section in this model by as much as 20--35 %, which is potentially observable at the Tevatron.

• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6216648
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 48:5; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662210 -- Specific Theories & Interaction Models
662340* -- Hadron Interactions-- (1992-)
662440 -- Properties of Other Particles Including Hypothetical Particles-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATORS
CORRECTIONS
COUPLINGS
CROSS SECTIONS
CYCLIC ACCELERATORS
ELEMENTARY PARTICLES
FERMILAB TEVATRON
FERMIONS
FIELD THEORIES
HIGGS BOSONS
INTERACTIONS
PAIR PRODUCTION
PARTICLE PRODUCTION
POSTULATED PARTICLES
Pa
Particle Systematics-- Unified Theories & Models-- (1992-)
QUANTUM FIELD THEORY
QUARKS
SYNCHROTRONS
TOP PARTICLES
YUKAWA NONLOCAL THEORY