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

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arxiv hep-ph/9907228 v2 pith:SQMWQDJW submitted 1999-07-05 hep-ph

A.V. Radyushkin This is my paper · ORCID
classification hep-ph
keywords spaceliketimelikealgorithmalphaanalyticappearconstantcontinuation
verification ladder T0 review T1 audit T2 compute T3 formal

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

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Cited by 1 Pith paper

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  1. Perturbative QCD fitting of KEDR and BESIII $e^+e^-$ data for R(s) and $\alpha_s$ determination

    hep-ph 2026-03 unverdicted novelty 5.0 of 10

    Fits of combined KEDR and truncated BESIII data yield α_s(M_Z)=0.1179 (NLO), 0.1221 (NNLO), 0.1313 (N3LO), with the rise attributed to π² analytic-continuation effects.

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