Infrared non-perturbative QCD running coupling from Bogolubov approach
Abstract
Description
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 $α_s(p^2)$ leads to description of its behaviour in correspondence to phenomenology and lattice calculations without introduction of any additional parameter.
8 pages, 3 figures, corrected types, precision of calculations improved, one figure added
8 pages, 3 figures, corrected types, precision of calculations improved, one figure added