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arXiv · 1212.0049

A Systematic All-Orders Method to Eliminate Renormalization-Scale and Scheme Ambiguities in PQCD

Matin Mojaza·Stanley J. Brodsky·Xing-Gang Wu
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Abstract

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 {β_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.

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Matin Mojaza, Stanley J. Brodsky, Xing-Gang Wu. 2013-06-19. A Systematic All-Orders Method to Eliminate Renormalization-Scale and Scheme Ambiguities in PQCD. https://doi.org/10.1103/physrevlett.110.192001

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