Accurate determinations of the physical scale of a lattice action are required to check scaling and take the continuum limit. We present a high statistics study of the static potential for the SU(3) Wilson gauge action on coarse lattices (5.54≤β≤6.0). Using an improved analysis procedure we determine the string tension and the Sommer scale r0 (and related quantities) to 1% accuracy, including all systematic errors. Combining our results with earlier ones on finer lattices, we present parameterizations of these quantities that should be accurate to about 1% for 5.6≤β≤6.5. We estimate the \La-parameter of quenched QCD to be \La\MSb=247(16) MeV.
@article{arxiv.hep-lat/9711003,
title = {Accurate Scale Determinations for the Wilson Gauge Action},
author = {R. G. Edwards and U. M. Heller and T. R. Klassen},
journal= {arXiv preprint arXiv:hep-lat/9711003},
year = {2009}
}