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Title: Fitting the lattice gluon propagator and the question of positivity violation

Abstract

The solution of Alkofer et al for the gluon propagator in Landau gauge of the Dyson-Schwinger equations was fitted with several functional forms. We study if the lattice gluon propagator, computed using large asymmetric lattices, is well reproduced by such functional forms. Furthermore, we also check for the violation of positivity of the lattice gluon propagator.

Authors:
;  [1]
  1. Centro de Fisica Computacional, Departamento de Fisica, Universidade de Coimbra, P-3004-516 Coimbra (Portugal)
Publication Date:
OSTI Identifier:
21056909
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 892; Journal Issue: 1; Conference: QCHS7: 7. conference on quark confinement and the hadron spectrum, Ponta Delgada, Acores (Portugal), 2-7 Sep 2006; Other Information: DOI: 10.1063/1.2714468; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ASYMMETRY; GAUGE INVARIANCE; GLUONS; LATTICE FIELD THEORY; MATHEMATICAL SOLUTIONS; PROPAGATOR; QUANTUM CHROMODYNAMICS; SCHWINGER FUNCTIONAL EQUATIONS; SCHWINGER SOURCE THEORY

Citation Formats

Silva, P. J., and Oliveira, O. Fitting the lattice gluon propagator and the question of positivity violation. United States: N. p., 2007. Web. doi:10.1063/1.2714468.
Silva, P. J., & Oliveira, O. Fitting the lattice gluon propagator and the question of positivity violation. United States. doi:10.1063/1.2714468.
Silva, P. J., and Oliveira, O. Tue . "Fitting the lattice gluon propagator and the question of positivity violation". United States. doi:10.1063/1.2714468.
@article{osti_21056909,
title = {Fitting the lattice gluon propagator and the question of positivity violation},
author = {Silva, P. J. and Oliveira, O.},
abstractNote = {The solution of Alkofer et al for the gluon propagator in Landau gauge of the Dyson-Schwinger equations was fitted with several functional forms. We study if the lattice gluon propagator, computed using large asymmetric lattices, is well reproduced by such functional forms. Furthermore, we also check for the violation of positivity of the lattice gluon propagator.},
doi = {10.1063/1.2714468},
journal = {AIP Conference Proceedings},
number = 1,
volume = 892,
place = {United States},
year = {Tue Feb 27 00:00:00 EST 2007},
month = {Tue Feb 27 00:00:00 EST 2007}
}