Two-point functions of quenched lattice QCD in Numerical Stochastic Perturbation Theory

Details Two-point functions of quenched lattice QCD in Numerical Stochastic Perturbation Theory Two-point functions of quenched lattice QCD in Numerical Stochastic Perturbation Theory

2010-12-08

arxiv.org/abs/1012.1764v1

AIP Conf. Proc. 1343: 236-238, 2011

Physics

High Energy Physics

High Energy Physics - Lattice

3 pages, 5 figures, talk at conference QCHS-IX, Madrid 2010

Scientific paper

We summarize the higher-loop perturbative computation of the ghost and gluon propagators in SU(3) Lattice Gauge Theory. Our final aim is to compare with results from lattice simulations in order to expose the genuinely non-perturbative content of the latter. By means of Numerical Stochastic Perturbation Theory we compute the ghost and gluon propagators in Landau gauge up to three and four loops. We present results in the infinite volume and $a \to 0$ limits, based on a general fitting strategy.

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