Recent Advances in Dyson-Schwinger Studies

Abstract

There have been many demonstrations of the utility of the Dyson-Schwinger equations of QCD as a systematic, phenomenological framework for describing the perturbative and non-perturbative dynamics of hadrons in terms of Euclidean Green functions of quarks and gluons. Still, there remain some unanswered questions regarding the theoretical underpinnings of the approach. I review several studies that are shedding light on how these questions might be resolved and review predictions for some exotic meson states.Comment: Plenary talk at N-Star 2002. 5 pages, 3 figure