Disentangling running coupling and conformal effects in QCD

@inproceedings{Brodsky2000DisentanglingRC,
title={Disentangling running coupling and conformal effects in QCD},
author={Stanley J. Brodsky and Einan Gardi and Georges Grunberg and Johan Rathsman},
year={2000}
}

We investigate the relation between a postulated skeleton expansion and the conformal limit of QCD. We begin by developing some consequences of an Abelian-like skeleton expansion, which allows one to disentangle running-coupling effects from the remaining skeleton coefficients. The latter are by construction renormalon-free, and hence hopefully better behaved. We consider a simple ansatz for the expansion, where an observable is written as a sum of integrals over the running-coupling. We show… CONTINUE READING