The Effective QCD Lagrangian and Renormalization Group Approach

Details The Effective QCD Lagrangian and Renormalization Group Approach The Effective QCD Lagrangian and Renormalization Group Approach

1997-11-19

arxiv.org/abs/hep-ph/9711390v1

Phys.Atom.Nucl.62:1729-1738,1999; Yad.Fiz.62:1857-1867,1999

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, LaTeX2e, 1 figure; talk presented by P. A. Kovalenko at the 8th Lomonosov Conference on Elementary Particle Physics,

Scientific paper

The perturbative part of the effective QCD Lagrangian was constructed by the
renormalization group approach in the 4-loop approximation. It was extrapolated
in the non-perturbative region under the assumption of the existence of gluon
condensate at (F_{\mu\nu}^j)^2=F_0^2. The best result is F_0^2\approx 0.4
GeV^4.

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