Are there short distance non-perturbative contributions to the QCD static potential?
High Energy Physics - Phenomenology
2009-10-31 v3 High Energy Physics - Lattice
Abstract
We find that perturbation theory fails to describe the short range static potential as obtained from quenched lattice simulations, at least for source separations r > 1/(6 GeV). The difference between the non-perturbatively determined potential and perturbation theory at short distance is well parameterised by a linear term with a slope of approximately 1.2 GeV^2 that is significantly bigger than the string tension, sigma = 0.21 GeV^2
Keywords
Cite
@article{arxiv.hep-ph/9905387,
title = {Are there short distance non-perturbative contributions to the QCD static potential?},
author = {Gunnar S. Bali},
journal= {arXiv preprint arXiv:hep-ph/9905387},
year = {2009}
}
Comments
11 pages Latex, elsart style with 3 epsf figures, some figures and formulas have changed due to a sign error in the original manuscript, Title changed, typos corrected, references updated