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Type: Conference paper
Title: Lattice QCD, gauge fixing and the transition to the perturbative regime
Author: Williams, A.
Stanford, M.
Citation: Proceedings of the Workshop on Physics at the Japan Hadron Facility (JHF), Adelaide, Australia, 14-21 March 2002 / V. Guzey ... [et al.] (eds.): pp.136-144
Publisher: World Scientific Publishing Co Pte Ltd
Publisher Place: Singapore
Issue Date: 2002
ISBN: 9812381473
Conference Name: Workshop on Physics at the Japan Hadron Facility (2002 : Adelaide, S. Aust.)
Editor: Guzey, V.
Kizilersu, A.
Thomas, A.
Nagae, T.
Abstract: The standard definition of perturbative QCD uses the Faddeev-Popov gauge-fixing procedure, which leads to ghosts and the local BRST invariance of the gauge-fixed perturbative QCD action. In the nonperturbative regime, there appears to be a choice of using nonlocal Gribov-copy free gauges (e.g. Laplacian gauge) or of attempting to maintain local BRST invariance at the expense of admitting Gribov copies and somehow summing or averaging over them. It should be recognized that the standard implementation of lattice QCD corresponds to the former choice even when only physical (i.e. colour singlet) observables are being calculated. These issues are introduced and briefly explained.
Description: Copyright © 2002. Submitted to Cornell University’s online archive in 2002 by Anthony G. Williams. Post-print sourced from Copyright © 2002 World Scientific Publishing Co. All rights reserved
DOI: 10.1142/9789812776662_0012
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Appears in Collections:Aurora harvest 2
Special Research Centre for the Subatomic Structure of Matter publications

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