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Title: The heavy quark parton oxymoron: A mini-review of heavy quark production theory in PQCD

Abstract

Conventional perturbative QCD calculations on the production of a heavy quark 'H' consist of two contrasting approaches: the usual QCD parton formalism uses the zero-mass approximation (m{sub H}=0) once above threshold, and treats H just like the other light partons; on the other hand, most recent 'NLO' heavy quark calculations treat m{sub H} as a large parameter and always consider H as a heavy particle, never as a parton, irrespective of the energy scale of the physical process. By their very nature, both these approaches are limited in their regions of applicability. This dichotomy can be resolved in a unified general-mass variable-flavor-number scheme, which retains the m{sub H} dependence at all energies, and which naturally reduces to the two conventional approaches in their respective region of validity. Recent applications to lepto- and hadro-production of heavy quarks are briefly summarized.

Authors:
 [1]
  1. Department of Physics and Astronomy, Michigan State University, E. Lansing, Michigan 48824 (United States)
Publication Date:
OSTI Identifier:
21167520
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 407; Journal Issue: 1; Conference: 5. international workshop on deep inelastic scattering and QCD, Chicago, IL (United States), 14-18 Apr 1997; Other Information: DOI: 10.1063/1.53735; (c) 1997 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; APPROXIMATIONS; B QUARKS; C QUARKS; FLAVOR MODEL; GLUONS; PARTICLE PRODUCTION; PERTURBATION THEORY; QUANTUM CHROMODYNAMICS; REST MASS; REVIEWS; T QUARKS

Citation Formats

Tung, W -K. The heavy quark parton oxymoron: A mini-review of heavy quark production theory in PQCD. United States: N. p., 1997. Web. doi:10.1063/1.53735.
Tung, W -K. The heavy quark parton oxymoron: A mini-review of heavy quark production theory in PQCD. United States. doi:10.1063/1.53735.
Tung, W -K. Sun . "The heavy quark parton oxymoron: A mini-review of heavy quark production theory in PQCD". United States. doi:10.1063/1.53735.
@article{osti_21167520,
title = {The heavy quark parton oxymoron: A mini-review of heavy quark production theory in PQCD},
author = {Tung, W -K},
abstractNote = {Conventional perturbative QCD calculations on the production of a heavy quark 'H' consist of two contrasting approaches: the usual QCD parton formalism uses the zero-mass approximation (m{sub H}=0) once above threshold, and treats H just like the other light partons; on the other hand, most recent 'NLO' heavy quark calculations treat m{sub H} as a large parameter and always consider H as a heavy particle, never as a parton, irrespective of the energy scale of the physical process. By their very nature, both these approaches are limited in their regions of applicability. This dichotomy can be resolved in a unified general-mass variable-flavor-number scheme, which retains the m{sub H} dependence at all energies, and which naturally reduces to the two conventional approaches in their respective region of validity. Recent applications to lepto- and hadro-production of heavy quarks are briefly summarized.},
doi = {10.1063/1.53735},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 407,
place = {United States},
year = {1997},
month = {4}
}