A dynamical mechanism for generating quark confinement
Abstract
We explore the dynamical mechanism for generating the infrared singular quark-gluon vertex and quark confinement based on the gauge invariance in covariant-gauge quantum chromodynamics(QCD). We first derive the gauge-invariance constraint relation for the infrared-limit behavior of the quark-gluon vertex, which shows the mechanism for generating the infrared behavior of the quark-gluon vertex. We hence unravel a novel mechanism for generating an infrared singular quark-gluon vertex and then a linear rising potential for confining massive quarks, where the infrared singularity in the form factors composing the quark-ghost scattering kernel plays a crucial role. The mechanism for linking chiral symmetry breaking with quark confinement is also shown.
Keywords
Cite
@article{arxiv.1307.4485,
title = {A dynamical mechanism for generating quark confinement},
author = {Han-Xin He and Yu-Xin Liu},
journal= {arXiv preprint arXiv:1307.4485},
year = {2013}
}