Schwinger-Dyson and Bethe-Salpeter approach to strong interaction dynamics and chiral symmetry breaking

Abstract

Maskawa and Nakajima initiated the approach based on the Schwinger-Dyson and Bethe-Salpeter equations to the strong interaction dynamics in QCD-like gauge theories, in particular, as a consistent framework to study the dynamical chiral symmetry breaking. We review here this approach including the later developments such as the improved ladder approximation by Higashijima and Miransky.