The Colour of Quarks
High Energy Physics - Phenomenology
2009-10-28 v2 High Energy Physics - Theory
Abstract
It is shown that colour can only be defined on gauge invariant states. Since the ability to associate colour with constituent quarks is an integral part of the constituent quark model, this means that, if we want to extract constituent quarks from QCD, we need to dress Lagrangian quarks with gluons so that the result is gauge invariant. We further prove that gauge fixings can be used to construct such dressings. Gauge invariant dressed quark states are presented and a direct approach to the interquark potential is discussed. Some further aspects of dressing quarks are briefly discussed.
Cite
@article{arxiv.hep-ph/9509343,
title = {The Colour of Quarks},
author = {Martin Lavelle and David McMullan},
journal= {arXiv preprint arXiv:hep-ph/9509343},
year = {2009}
}
Comments
Extended version, to appear in Phys. Lett B., 7 pages, TeX