Linear covariant gauges on the lattice

Cucchieri, Attilio; Maas, Axel; Mendes, Tereza

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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Linear covariant gauges on the lattice

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Author(s):	Cucchieri, Attilio ^[1] ; Maas, Axel ^{[1, 2, 3]} ; Mendes, Tereza ^{[1, 4]} Total Authors: 3
Affiliation:	^[1] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP - Brazil ^[2] Slovak Acad Sci, Inst Phys, Dept Complex Phys Syst, SK-84511 Bratislava - Slovakia ^[3] Karl Franzens Univ Graz, Inst Phys, Dept Theoret Phys, A-8010 Graz - Austria ^[4] DESY, D-15738 Zeuthen - Germany Total Affiliations: 4
Document type:	Journal article
Source:	COMPUTER PHYSICS COMMUNICATIONS; v. 180, n. 2, p. 215-225, FEB 2009.
Web of Science Citations:	8
Abstract
Linear covariant gauges, such as Feynman gauge, are very useful in perturbative calculations. Their non-perturbative formulation is, however, highly non-trivial. In particular, it is a challenge to define linear covariant gauges on a lattice. We consider a class of gauges in lattice gauge theory that coincides with the perturbative definition of linear covariant gauges in the formal continuum limit. The corresponding gauge-fixing procedure is described and analyzed in detail, with an application to the pure SU(2) case. In addition, results for the gluon propagator in the two-dimensional case are given. (C) 2008 Elsevier B.V. All rights reserved. (AU)

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