Contemporary applications of Dyson-Schwinger equations

Abstract

We illustrate the contemporary application of Dyson-Schwinger equations using two examples: the calculation of pseudoscalar meson masses, an associated model-independent mass formula and the approach to the heavy-quark limit; and the study of nucleon observables, including a calculation of its mass, $M$, via a covariant Fadde'ev equation and an estimate of pion-loop contributions to $M$.

13 pages, 1 figure. Contribution to the Proceedings of ``Confinement IV: The 4th International Conference on Quark Confinement and the Hadron Spectrum,'' 3-8/Jul./2000, Vienna, Austria