Zero Modes Enhancement Quantum Model of the Yang-Mills Vacuum
Abstract
Using the effective potential approach for composite operators we have formulated new zero modes enhancement quantum model of the QCD ground state. It is based on the existence and importance of such kind of the nonperturbative, topologically nontrivial excitations of the gluon field configurations (due to self-interactions of massless gluons only), which can be effectively corrctly described by the q-4-type behavior of the full gluon propagator in the deep infrared domain. The ultraviolet part of the full gluon propagator is approximated by the asymptotic freedom to-leading order perturbative logarithm term of the running coupling constant. We minimize the regularized and correspondingly subtracted effective potential at a fixed scale as a function of the physically meaningful parameter. When it is zero, then perturbative phase survives only in our model. This makes it possible for the first time to establish relation between the nonperturbative scale parameter and flavorless QCD asymptotic scale parameter.
- Publication:
-
NEWS 99
- Pub Date:
- September 2002
- DOI:
- Bibcode:
- 2002news.conf...97G