Analytic structure of the Landau gauge gluon propagator
High Energy Physics - Phenomenology
2008-11-26 v1
Abstract
The results of different non-perturbative studies agree on a power law as the infrared behavior of the Landau gauge gluon propagator. This propagator violates positivity and thus indicates the absence of the transverse gluons from the physical spectrum, i.e. gluon confinement. A simple analytic structure for the gluon propagator is proposed capturing all of its features. We comment also on related investigations for the Landau gauge quark propagator.
Cite
@article{arxiv.hep-ph/0411367,
title = {Analytic structure of the Landau gauge gluon propagator},
author = {R. Alkofer and W. Detmold and C. S. Fischer and P. Maris},
journal= {arXiv preprint arXiv:hep-ph/0411367},
year = {2008}
}
Comments
4 pages, 2 figures, talk given by R.A. at 6th Conference on Quark Confinement and the Hadron Spectrum, Villasimius, Sardinia, Italy, 21-25 Sep 2004