Aspects of the Confinement Mechanism in CoulombGauge QCD
Abstract
Phenomenological consequences of the infrared singular, instantaneous part of the gluon propagator in the Coulomb gauge are investigated. The corresponding quark DysonSchwinger equation is solved, neglecting retardation and transverse gluons and regulating the resulting infrared singularities. While the quark propagator vanishes as the infrared regulator goes to zero, the frequency integral over the quark propagator stays finite and well defined. Solutions of the homogeneous BetheSalpeter equation for the pseudoscalar and vector mesons as well as for scalar and axialvector diquarks are obtained. In the limit of a vanishing infrared regulator the diquark masses diverge, while meson properties and diquark radii remain finite and well defined. These features are interpreted with respect to the resulting aspects of confinement for colored quarkquark correlations.
 Authors:
 Institut fuer Physik, University of Graz, A8010 Graz (Austria)
 Publication Date:
 OSTI Identifier:
 20775034
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Physical Review Letters; Journal Volume: 96; Journal Issue: 2; Other Information: DOI: 10.1103/PhysRevLett.96.022001; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BAG MODEL; BETHESALPETER EQUATION; CORRELATIONS; GAUGE INVARIANCE; GLUONS; MATHEMATICAL SOLUTIONS; QUANTUM CHROMODYNAMICS; QUARKQUARK INTERACTIONS; QUARKS; RESONANCE PARTICLES; SINGULARITY; VECTOR MESONS
Citation Formats
Alkofer, R., Kloker, M., Krassnigg, A., and Wagenbrunn, R. F. Aspects of the Confinement Mechanism in CoulombGauge QCD. United States: N. p., 2006.
Web. doi:10.1103/PhysRevLett.96.022001.
Alkofer, R., Kloker, M., Krassnigg, A., & Wagenbrunn, R. F. Aspects of the Confinement Mechanism in CoulombGauge QCD. United States. doi:10.1103/PhysRevLett.96.022001.
Alkofer, R., Kloker, M., Krassnigg, A., and Wagenbrunn, R. F. Fri .
"Aspects of the Confinement Mechanism in CoulombGauge QCD". United States.
doi:10.1103/PhysRevLett.96.022001.
@article{osti_20775034,
title = {Aspects of the Confinement Mechanism in CoulombGauge QCD},
author = {Alkofer, R. and Kloker, M. and Krassnigg, A. and Wagenbrunn, R. F.},
abstractNote = {Phenomenological consequences of the infrared singular, instantaneous part of the gluon propagator in the Coulomb gauge are investigated. The corresponding quark DysonSchwinger equation is solved, neglecting retardation and transverse gluons and regulating the resulting infrared singularities. While the quark propagator vanishes as the infrared regulator goes to zero, the frequency integral over the quark propagator stays finite and well defined. Solutions of the homogeneous BetheSalpeter equation for the pseudoscalar and vector mesons as well as for scalar and axialvector diquarks are obtained. In the limit of a vanishing infrared regulator the diquark masses diverge, while meson properties and diquark radii remain finite and well defined. These features are interpreted with respect to the resulting aspects of confinement for colored quarkquark correlations.},
doi = {10.1103/PhysRevLett.96.022001},
journal = {Physical Review Letters},
number = 2,
volume = 96,
place = {United States},
year = {Fri Jan 20 00:00:00 EST 2006},
month = {Fri Jan 20 00:00:00 EST 2006}
}

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