A ug 1 99 7 On the Analytic “ Causal ” Model for the QCD Running Coupling

@inproceedings{Shirkov1997AU1,
  title={A ug 1 99 7 On the Analytic “ Causal ” Model for the QCD Running Coupling},
  author={Dmitrij V. Shirkov},
  year={1997}
}
We discuss the model ᾱan(Q ) recently proposed for the QCD running coupling ᾱs(Q ) in the Euclidean domain on the basis of the “asymptotic–freedom” expression and on causality condition in the form of the Q-analyticity. The model contains no adjustable parameters and obeys the important features: (i) Finite ghost-free behavior in the “low Q” region and correspondence with the standard RG-summed UV expressions;(ii) The universal limiting value ᾱan(0) expressed only via group symmetry factors… CONTINUE READING

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Solovtsov, JINR Rapid Comm., No

I.L.D.V. Shirkov
Sov. Phys. JETP • 1960