Gluon fragmentation into heavy quarkonium

Journal Article · Mon Sep 13 00:00:00 EDT 1993 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.71.1673· OSTI ID:6141858

Braaten, E ^[1]; Yuan, T C ^[2]

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1. Department of Physics and Astronomy, Northwestern University, Evanston, Illinois ( )
2. Davis Institute for High Energy Physics, Department of Physics, University of California, Davis, California 95616 (United States)

The dominant production mechanism for heavy-quark--antiquark bound states with large transverse momentum is fragmentation, the splitting of a high energy parton into a quarkonium state and other partons. We show that the fragmentation functions [ital D]([ital z],[mu]) describing these processes can be calculated using perturbative QCD. We calculate the fragmentation functions for a gluon to split into [ital S]-wave quarkonium states to leading order in the QCD coupling constant.

• DOE Contract Number: FG02-91ER40684
• OSTI ID: 6141858
• Journal Information: Physical Review Letters; (United States), Vol. 71:11; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
FRAGMENTATION
QUARKONIUM
GLUONS
BOUND STATE
COUPLING CONSTANTS
PARTONS
PERTURBATION THEORY
QUANTUM CHROMODYNAMICS
S WAVES
TRANSVERSE MOMENTUM
BOSONS
ELEMENTARY PARTICLES
FIELD THEORIES
LINEAR MOMENTUM
PARTIAL WAVES
POSTULATED PARTICLES
QUANTUM FIELD THEORY
662230* - Quantum Chromodynamics- (1992-)
662340 - Hadron Interactions- (1992-)
662420 - Properties of Mesons & Meson Resonances- (1992-)