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Gauge fixing methods and Gribov copies effects in lattice QCD

Presenter: Paulo Silva — Centre for Computational Physics - University of Coimbra

P. J. Silva, O. Oliveira

In this poster 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.