The three-boson bound state in the massive Schwinger model
arXiv:hep-th/9610050 · doi:10.1023/A:1022887418022
Abstract
We derive the (matrix-valued) Feynman rules of mass perturbation theory of the massive Schwinger model for non-zero vacuum angle theta. Further, we discuss the properties of the three-boson bound state and compute -- by a partial resummation of the mass perturbation series -- its mass and its partial decay widths.
12 pages, Latex file, 6 figures, needed macro: psbox.tex