The Bjorken Sum Rule in the Analytic Approach to Perturbative QCD

Abstract

Results of applying analytic perturbation theory (APT) to the Bjorken sum rule are presented. We study the third-order QCD correction within the analytic approach and investigate its renormalization scheme dependence. We demonstrate that, in the framework of the method, theoretical predictions of the Bjorken sum rule are, practically, scheme independent for the entire interval of momentum transfer.

12 pages, 3 eps figures, uses elsart.cls

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• Measurement of the Proton and Deuteron Spin Structure Function g_1 in the Resonance Region
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