Dyson-Schwinger Equations: An Instrument for Hadron Physics

Abstract

Dyson-Schwinger equations furnish a Poincare' covariant approach to hadron physics. They reveal that dynamical chiral symmetry breaking is tied to the long-range behaviour of the strong interaction and make predictions corroborated by modern lattice-QCD simulations. A hallmark in the contemporary use of DSEs is the existence of a nonperturbative, symmetry preserving truncation that enables the proof of exact results. The systematic error associated with the truncation's leading term has been quantified and this underpins an efficacious one-parameter model that is being employed to study meson excited states.

9 pages; LaTeX2e; Contribution to proceedings of "17th International Conference on Few-Body Problems in Physics," Duke University/TUNL, 5-10/June/2003

References in corpus (13)

• Dyson-Schwinger equations: a tool for hadron physics
• Non-perturbative Propagators, Running Coupling and Dynamical Quark Mass of Landau gauge QCD
• Analysis of a quenched lattice-QCD dressed-quark propagator
• Bethe-Salpeter equation and a nonperturbative quark-gluon vertex
• Nonperturbative structure of the quark-gluon vertex
• Strong Decays of Light Vector Mesons
• Chirally symmetric quark description of low energy π-πscattering
• Modelling the quark propagator
• Concerning the quark condensate
• Analytic proof that the Quark Model complies with the PCAC theorems
• Gluon Propagator on Coarse Lattices in Laplacian Gauges
• Covariant QCD Modeling of Light Meson Physics
• DSEs, the pion, and related matters

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• Aspects of open-flavour mesons in a comprehensive DSBSE study
• Charming quasi-exotic open-flavor mesons
• Quasi-exotic open-flavor mesons
• Meson spectroscopy and properties using Dyson-Schwinger equations
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• Chiral Symmetry Breaking and Dual Gluon Mass in the Confining Region of QCD
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