Running Coupling in Non-Perturbative QCD - I. Bare Vertices and y-max Approximation
High Energy Physics - Phenomenology
2009-01-14 v3 High Energy Physics - Theory
Nuclear Theory
Abstract
A recent claim that in quantum chromodynamics the gluon propagator vanishes in the infrared limit, while the ghost propagator is more singular than a simple pole, is investigated analytically and numerically. This picture is shown to be supported even at the level in which the vertices in the Dyson-Schwinger equations are taken to be bare. The running coupling is shown to be uniquely determined by the equations and to have a large finite infrared limit.
Cite
@article{arxiv.hep-ph/9712459,
title = {Running Coupling in Non-Perturbative QCD - I. Bare Vertices and y-max Approximation},
author = {D. Atkinson and J. C. R. Bloch},
journal= {arXiv preprint arXiv:hep-ph/9712459},
year = {2009}
}
Comments
Latex, 41 pages, 7 figures, submitted to Phys. Rev. D; corrected typos