Do Instantons Like a Colorful Background?
High Energy Physics - Phenomenology
2008-11-26 v1
Abstract
We investigate chiral symmetry breaking and color symmetry breaking in QCD. The effective potential of the corresponding scalar condensates is discussed in the presence of non-perturbative contributions from the semiclassical one-instanton sector. We concentrate on a color singlet scalar background which can describe chiral condensation, as well as a color octet scalar background which can generate mass for the gluons. Whereas a non-vanishing singlet chiral field is favored by the instantons, we have found no indication for a preference of color octet backgrounds.
Keywords
Cite
@article{arxiv.hep-ph/0608171,
title = {Do Instantons Like a Colorful Background?},
author = {Holger Gies and Joerg Jaeckel and Jan M. Pawlowski and Christof Wetterich},
journal= {arXiv preprint arXiv:hep-ph/0608171},
year = {2008}
}
Comments
25 pages, 7 figures