The SU(3) beta function from numerical stochastic perturbation theory
- Horsley, R.School of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom
- Perlt, H.(Institut für Theoretische Physik, Universität Leipzig, 04103 Leipzig, Germany)
- Rakow, P.E.L.(Theoretical Physics Division, Department of Mathematical Sciences, University of Liverpool, Liverpool L69 3BX, United Kingdom)
- Schierholz, G.(Deutsches Elektronen-Synchrotron DESY, 22603 Hamburg, Germany)
- Schiller, A.(Institut für Theoretische Physik, Universität Leipzig, 04103 Leipzig, Germany)
Publication date
April 2014
DOIAbstract
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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