1998/08/31 by Victor Chernyak
Physics and Astronomy · #hep-th #hep-ph
published as rejected by Phys. Lett. B, (1998-99) · 17 pages, Latex, no figures; additional explanations are given in sects.1 and 3; the final version
arxiv created 1999/03/18 · arxiv updated 2009/11/30
The asymptotic behaviour of the vacuum energy density, E(θ), at θ\ra ± i ∞ is found out. A new interpretation and a qualitative discussion of the E(θ) behaviour are presented. It is emphasized that the vacuum is doubly degenerate at θ=π, and the quark electric string can terminate on the domain wall interpolating between these two vacua. The potential of the monopole field condensing in the Yang-Mills vacuum is obtained.