Infrared non-perturbative QCD running coupling from Bogolubov approach

Abstract

We apply Bogolubov approach to QCD to demonstrate a spontaneous generation of three-gluon gauge invariant effective interaction which contributes significantly at the infrared region. The contribution of this interaction to ${\alpha }_s(p^2)$ leads to description of its behaviour in correspondence to phenomenology and lattice calculations without introduction of any additional parameter.

Comments: 8 pages, 3 figures, corrected types, precision of calculations improved, one figure added