Running coupling in Yang-Mills theory - a flow equation study -
High Energy Physics - Theory
2009-11-07 v2 High Energy Physics - Phenomenology
Abstract
The effective average action of Yang-Mills theory is analyzed in the framework of exact renormalization group flow equations. Employing the background-field method and using a cutoff that is adjusted to the spectral flow, the running of the gauge coupling is obtained on all scales. In four dimensions and for the gauge groups SU(2) and SU(3), the coupling approaches a fixed point in the infrared.
Cite
@article{arxiv.hep-th/0202207,
title = {Running coupling in Yang-Mills theory - a flow equation study -},
author = {Holger Gies},
journal= {arXiv preprint arXiv:hep-th/0202207},
year = {2009}
}
Comments
35 pages, 3 figures, v2: References added, minor improvements, version to appear in PRD