Constructing non-perturbative gauges using correlation functions

Details Constructing non-perturbative gauges using correlation functions Constructing non-perturbative gauges using correlation functions

2009-07-29

arxiv.org/abs/0907.5185v3

Phys.Lett.B689:107-111, 2010

Physics

High Energy Physics

High Energy Physics - Lattice

in v2: Various modifications, discussion of results and scenario extended, references added in v3: Discussed definitions of wh

Scientific paper

10.1016/j.physletb.2010.04.052

Gauge fixing in the non-perturbative domain of non-Abelian gauge theories is obstructed by the Gribov-Singer ambiguity. To compare results from different methods it is necessary to resolve this ambiguity explicitly. Such a resolution is proposed using conditions on correlation functions for a family of non-perturbative Landau gauges. As a consequence, the various results available for correlation functions could possibly correspond to different non-perturbative Landau gauges, discriminated by an additional non-perturbative gauge parameter. The proposal, the necessary assumptions, and evidence from lattice gauge theory calculations, are presented in detail.

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