Heavy quark fragmentation to baryons containing two heavy quarks

Journal Article · Fri Dec 31 23:00:00 EST 1993 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.49.555· OSTI ID:5409527

Falk, A F; Luke, M; Savage, M J; Wise, M B ^[1]

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1. Stanford Linear Accelerator Center, Stanford, California 94309 (United States) Department of Physics, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093 (United States) California Institute of Technology, Pasadena, California 91125 (United States)

We discuss the fragmentation of a heavy quark to a baryon containing two heavy quarks of mass [ital m][sub [ital Q]][much gt][Lambda][sub QCD]. In this limit the heavy quarks first combine perturbatively into a compact diquark with a radius small compared to 1/[Lambda][sub QCD], which interacts with the light hadronic degrees of freedom exactly as does a heavy antiquark. The subsequent evolution of this [ital QQ] diquark to a [ital QQq] baryon is identical to the fragmentation of a heavy antiquark to a meson. We apply this analysis to the production of baryons of the form [ital ccq], [ital bbq], and [ital bcq].

• DOE Contract Number: AC03-76SF00515; FG03-90ER40546; FG03-92ER40701
• OSTI ID: 5409527
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 49:1; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

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662300* -- Specific Interactions
Decays & Processes-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
DEGREES OF FREEDOM
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
FRAGMENTATION
HADRONS
PARTICLE PRODUCTION
PERTURBATION THEORY
POSTULATED PARTICLES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARKS