The running coupling of QCD with four flavors

Fatih Tekin; Rainer Sommer; Ulli Wolff

doi:10.1016/j.nuclphysb.2010.07.002

The running coupling of QCD with four flavors

High Energy Physics - Lattice 2014-11-21 v1

Authors: 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.

Keywords

running coupling QCD Schroedinger functional step scaling function Wilson quarks non-perturbative

Cite

@article{arxiv.1006.0672,
  title  = {The running coupling of QCD with four flavors},
  author = {Fatih Tekin and Rainer Sommer and Ulli Wolff},
  journal= {arXiv preprint arXiv:1006.0672},
  year   = {2014}
}

Comments

22 pages, 4 figures

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