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

F. Di Renzo; E. -M. Ilgenfritz; H. Perlt; A. Schiller; C. Torrero

doi:10.1063/1.3574988

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

High Energy Physics - Lattice 2015-05-20 v1

Authors: F. Di Renzo , E. -M. Ilgenfritz , H. Perlt , A. Schiller , C. Torrero

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Abstract

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.

Keywords

lattice QCD numerical stochastic perturbation theory ghost propagator gluon propagator Landau gauge higher-loop computation

Cite

@article{arxiv.1012.1764,
  title  = {Two-point functions of quenched lattice QCD in Numerical Stochastic Perturbation Theory},
  author = {F. Di Renzo and E. -M. Ilgenfritz and H. Perlt and A. Schiller and C. Torrero},
  journal= {arXiv preprint arXiv:1012.1764},
  year   = {2015}
}

Comments

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

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

Abstract

Keywords

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