The running coupling of QCD with four flavors

Details The running coupling of QCD with four flavors The running coupling of QCD with four flavors

2010-06-03

arxiv.org/abs/1006.0672v1

Physics

High Energy Physics

High Energy Physics - Lattice

22 pages, 4 figures

Scientific paper

10.1016/j.nuclphysb.2010.07.002

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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