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), Journal Name: Physical Review Letters; (United States) Vol. 71:11; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

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