BRST Cohomology and Vacuum Structure of Two-Dimensional Chromodynamics
High Energy Physics - Theory
2009-10-28 v1
Abstract
Using a formulation of QCD_2 as a perturbed conformally invariant theory involving fermions, ghosts, as well as positive and negative level Wess-Zumino-Witten fields, we show that the BRST conditions become restrictions on the conformally invariant sector, as described by a G/G topological theory. By solving the corresponding cohomology problem we are led to a finite set of vacua. For G=SU(2) these vacua are two-fold degenerate.
Cite
@article{arxiv.hep-th/9507114,
title = {BRST Cohomology and Vacuum Structure of Two-Dimensional Chromodynamics},
author = {E. Abdalla and K. D. Rothe},
journal= {arXiv preprint arXiv:hep-th/9507114},
year = {2009}
}
Comments
14 pages, LaTeX