2004/09/18 by A. V. Nesterenko, A. V. NESTERENKO, J. Papavassiliou +1
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph #hep-th
paper · pdf · doi:10.1142/s0217751x05028296
published as Int.J.Mod.Phys. A20 (2005) 4622-4627 · Talk given at Eighth Workshop on Nonperturbative QCD, 7 - 11 June 2004, Paris, France; 6 pages, 2 EPS figures
arxiv created 2004/09/18 · openalex publication_date 2005/07/30 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
A new model for the QCD analytic running coupling, which incorporates the effects due to the π meson mass, is proposed. The properties of this invariant charge in spacelike and timelike regions are examined. Its main distinctive features are a finite infrared limiting value, which depends on the pion mass, and the "plateau–like" behavior in the deep infrared domain of the timelike region.