Physical Review D
American Physical Society
QCD, Heavy-Quark Potential, Brodsky-Lepage-Mackenzie Prescription, Bjorken Sum Rule
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.
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. Paper 17.
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
Copyright 2000 Physical Review D
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