The SU(3) Beta Function from Numerical Stochastic Perturbation Theory

A. Schiller; G. Schierholz; H. Perlt; P.E.L. Rakow; R. Horsley

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The SU(3) Beta Function from Numerical Stochastic Perturbation Theory

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arxiv 1309.4311 v2 pith:3WF6O5EI submitted 2013-09-17 hep-lat hep-phhep-thnucl-th

R. Horsley , H. Perlt , P.E.L. Rakow , G. Schierholz , A. Schiller This is my paper

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keywords theorybetafunctionnumericalorderperturbationstochasticaddressed

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The SU(3) beta function is computed from Wilson loops to 20th order numerical stochastic perturbation theory. An attempt is made to include massless fermions, whose contribution is known analytically to 4th order. The question whether the theory admits an infrared stable fixed point is addressed.

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