%0 Journal Article
%T Unifying aspects of light- and heavy-systems
%A C. D. Roberts
%J Physics
%D 2003
%I arXiv
%X Dyson-Schwinger equations furnish a Poincare' covariant framework within which to study hadrons. A particular feature is the existence of a nonperturbative, symmetry preserving truncation that enables the proof of exact results. Key to the DSE's efficacious application is their expression of the materially important momentum-dependent dressing of parton propagators at infrared length-scales, which is responsible for the magnitude of constituent-quark masses and the length-scale characterising confinement in bound states. A unified quantitative description of light- and heavy-quark systems is achieved by capitalising on these features.
%U http://arxiv.org/abs/nucl-th/0304050v1