Lattice Quark Propagator in Landau and Laplacian Gauges
classification
✦ hep-lat
keywords
quarkgaugeslandaulaplacianpropagatoractionactionserrors
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We present results for the lattice quark propagator in both Landau and Laplacian gauges using standard and improved staggered quark actions. The standard Kogut-Susskind action has errors of \oa{2} while the improved ``Asqtad'' action has \oa{4}, \oag{2}{2} errors. This improvement is seen in the quark propagator. We demonstrate the application of tree-level corrections to these actions and see that Landau and Laplacian gauges produce very similar results.
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