Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2004-07-22
Phys.Atom.Nucl. 66 (2003) 1384-1394; Yad.Fiz. 66 (2003) 1426-1436
Physics
High Energy Physics
High Energy Physics - Theory
Scientific paper
It is shown that, in the theory of interacting Yang -Mills fields and a Higgs field, there is a topological degeneracy of Bogomol'nyi-Prasad-Sommerfield (BPS) monopoles and that there arises, in this case, a chromoelectric monopole characterized by a new topological variable that describes transitions between topological states of the monopole in the Minkowski space (in just the same way as an instanton describes such transitions in the Euclidean space). The limit of an infinitely large mass of the Higgs field at a finite density of the BPS monopole is considered as a model of the stable vacuum in the pure Yang-Mills theory. It is shown that, in QCD, such a monopole vacuum may lead to a rising potential, a topological confinement and an additional mass of the $\eta_0$ meson. The relationship between the result obtained here for the generating functional of perturbation theory and Faddeev-Popov integral is discussed.
Lantsman Leonid D.
Pervushin Victor N.
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