Document Type

Article

Publication Date

5-9-2000

Publication Title

Physical Review D

Publisher

American Physical Society

Keywords

QCD, Heavy-Quark Potential, Brodsky-Lepage-Mackenzie Prescription, Bjorken Sum Rule

Abstract

We discuss the application of the physical QCD effective charge αV, defined via the heavy-quark potential, in perturbative calculations at next-to-leading order. When coupled with the Brodsky-Lepage-Mackenzie prescription for fixing the renormalization scales, the resulting series are automatically and naturally scale and scheme independent, and represent unambiguous predictions of perturbative QCD. We consider in detail such commensurate scale relations for the e+e− annihilation ratio Re+e− and the Bjorken sum rule. In both cases the improved predictions are in excellent agreement with experiment.

First Page

114011-1

Last Page

114011-8

Volume

61

Issue

11

Original Citation

Binger, M., Ji, C. & Robertson, D.G. (2000) Renormalization scale invariant pQCD predictions for R(e+ e-) and the Bjorken sum rule at next-to-leading order. Physical Review D, 61(11). DOI: 10.1103/PhysRevD.61.114011

DOI

10.1103/PhysRevD.61.114011

Version

Publisher's Version

Publisher's Statement

Copyright 2000 Physical Review D

Peer Reviewed

1

Creative Commons License


This work is licensed under a Creative Commons Attribution 3.0 License.

Included in

Physics Commons

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