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https://hdl.handle.net/2440/48354
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Type: | Conference paper |
Title: | Lattice QCD, gauge fixing and the transition to the perturbative regime |
Author: | Williams, A. |
Citation: | Quark Confinement and the Hadron Spectrum V: Proceedings of the 5th International Conference, 10 - 14 September, 200 / N. Brambilla & G.M. Prosperi (eds.), pp.177-184 |
Publisher: | WORLDSCIE |
Publisher Place: | Gargnano |
Issue Date: | 2003 |
ISBN: | 981238393X |
Conference Name: | International Conference on Quark Confinement and the Hadron Spectrum (5th : 2002 : Gargnano, Italy) |
Abstract: | 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 asymptotic regime, where perturbative QCD is relevant, Gribov copies can be neglected. In the nonperturbative regime, one must adopt either a nonlocal Gribov-copy free gauge (e.g., Laplacian gauge) or attempt to maintain local BRST invariance at the expense of admitting Gribov copies. These issues are explored and discussed. In addition, the relationship between recent Dyson-Schwinger based calculations of the infrared behavior of QCD Green's functions and the lattice calculation of these quantities is examined. |
Description: | Copyright © 2003 World Scientific Publishing Co. All rights reserved. Printed in U.S.A. Submitted to Cornell University’s online archive www.arXiv.org in 2003 by Anthony G. Williams. Post-print sourced from www.arxiv.org. |
DOI: | 10.1142/9789812704269_0018 |
Published version: | http://dx.doi.org/10.1142/9789812704269_0018 |
Appears in Collections: | Aurora harvest 6 Computer Science publications |
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hdl_48354.pdf | 149.63 kB | Publisher's post-print | View/Open |
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