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arXiv · 1006.0672

The running coupling of QCD with four flavors

Fatih Tekin·Rainer Sommer·Ulli Wolff
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Abstract

We have calculated the step scaling function and the running coupling of QCD in the Schroedinger functional scheme with four flavors of O(a) improved Wilson quarks. Comparisons of our non-perturbative results with 2-loop and 3-loop perturbation theory as well as with non-perturbative data for only two flavors are made.

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Fatih Tekin, Rainer Sommer, Ulli Wolff. 2010-06-03. The running coupling of QCD with four flavors. https://doi.org/10.1016/j.nuclphysb.2010.07.002

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