The Running Gauge Coupling in the Exact Renormalization Group Approach
High Energy Physics - Phenomenology
2007-05-23 v1
Abstract
We discuss the perturbative running Yang-Mills coupling constant in the Wilsonian exact renormalization group approach, and compare it to the running coupling in the more conventional MS-bar scheme. The exact renormalization group approach corresponds to a particular renormalization scheme, and we relate explicitly the corresponding Lambda-parameters. The unambiguous definition of an exact renormalization group scheme requires, however, the use of a one-loop improved high energy effective action.
Cite
@article{arxiv.hep-ph/9702309,
title = {The Running Gauge Coupling in the Exact Renormalization Group Approach},
author = {Ulrich Ellwanger},
journal= {arXiv preprint arXiv:hep-ph/9702309},
year = {2007}
}
Comments
17 pages (latex2e), 6 figs