We introduce a generalization of the conventional renormalization schemes used in dimensional regularization, which illuminates the renormalization scheme and scale ambiguities of pQCD predictions, exposes the general pattern of nonconformal {\beta_i}-terms, and reveals a special degeneracy of the terms in the perturbative coefficients. It allows us to systematically determine the argument of the running coupling order by order in pQCD in a form which can be readily automatized. The new method satisfies all of the principles of the renormalization group and eliminates an unnecessary source of systematic error.
@article{arxiv.1212.0049,
title = {A Systematic All-Orders Method to Eliminate Renormalization-Scale and Scheme Ambiguities in PQCD},
author = {Matin Mojaza and Stanley J. Brodsky and Xing-Gang Wu},
journal= {arXiv preprint arXiv:1212.0049},
year = {2013}
}
Comments
5 pages, 1 figure, revised to match the published version