Covariance, Dynamics and Symmetries, and Hadron Form Factors

Abstract

We summarise applications of Dyson-Schwinger equations to the theory and phenomenology of hadrons. Some exact results for pseudoscalar mesons are highlighted with details relating to the U_A(1) problem. We describe inferences from the gap equation relating to the radius of convergence for expansions of observables in the current-quark mass. We recapitulate upon studies of nucleon electromagnetic form factors, providing a comparison of the ln-weighted ratios of Pauli and Dirac form factors for the neutron and proton.

9 pages, 2 figures. Contribution to proceedings of Workshop on Exclusive Reactions at High Momentum Transfer, May 21-24, 2007, Jefferson Lab, Newport News, VA

References in corpus (4)

• Vector meson form factors and their quark-mass dependence
• Dependence of nuclear binding on hadronic mass variation
• Transversity quark distributions in a covariant quark-diquark model
• Flavour symmetry breaking and meson masses

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• Theory Support for the Excited Baryon Program at the Jlab 12 GeV Upgrade
• Hadron Physics: The Essence of Matter
• Dynamics, Symmetries and Hadron Properties
• Form Factors and Dyson-Schwinger Equations
• The Future of Hadrons: The Nexus of Subatomic Physics
• Trace anomaly and dynamical quark mass