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
Repository Citation
Binger, Michael; Ji, Chueng-Ryong; and Robertson, David G., "Renormalization Scale Invariant pQCD Predictions for R(e+ e-) and the Bjorken Sum Rule at Next-to-Leading Order" (2000). Physics Faculty Scholarship. 17.
https://digitalcommons.otterbein.edu/phys_fac/17
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.