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Optimized Lambda-Parametrization for the QCD Running Coupling Constant in Spacelike and Timelike Regions

A. V. Radyushkin
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Abstract

The algorithm is described that enables one to perform an explicit summation of all the (π^2/ ln(Q^2/Lambda^2))^N corrections to α_s (Q^2) that appear owing to the analytic continuation from spacelike to timelike region of momentum transfer.

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A. V. Radyushkin. 1999-07-06. Optimized Lambda-Parametrization for the QCD Running Coupling Constant in Spacelike and Timelike Regions. https://arxiv.org/abs/hep-ph/9907228

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