The QCD beta-function at O(1/N_f)
高能物理 - 唯象学
2009-10-28 v1
摘要
The leading order coefficients of the beta-function of QCD are computed in a large N_f expansion. They are in agreement with the three loop MSbar calculation. The method involves computing the anomalous dimension of the operator (G^2_{mu nu})^2 at the d-dimensional fixed point in the non-abelian Thirring model to which QCD is equaivalent in this limit. The effect the O(1/N_f) corrections have on the location of the infrared stable fixed point for a range of N_f is also examined.
引用
@article{arxiv.hep-ph/9602214,
title = {The QCD beta-function at O(1/N_f)},
author = {J. A. Gracey},
journal= {arXiv preprint arXiv:hep-ph/9602214},
year = {2009}
}
备注
9 pages latex, 1 figure