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Gribov Copies and Smeared Correlation Functions in Lattice QCD
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Gribov Copies and Smeared Correlation Functions in Lattice QCD
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We study the influence of Gribov copies in the Coulomb gauge on the smeared hadronic correlation functions that are involved in the determination of the B meson decay constant. We find that the residual gauge freedom associated to Gribov copies induces observable noise effects, though at the level of numerical accuracy of our simulation these effects are not relevant to the final determination of f_B. Our results indicate that such effects may become important on bigger lattices.
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