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Gauge fixing methods and Gribov copies effects in lattice QCD

Authors: P. J. Silva, O. Oliveira

Ref.: PoS LATTICE 2007, 333 (2007)

Abstract: We compare two Landau gauge fixing methods, aiming to find the global maximum of the gauge fixing functional. Moreover, a systematic effect of Gribov copies in the gluon and ghost propagators computed in Landau gauge is presented and discussed.