Exploring the light-quark interaction

Abstract

Two basic motivations for an upgraded JLab facility are the needs: to determine the essential nature of light-quark confinement and dynamical chiral symmetry breaking (DCSB); and to understand nucleon structure and spectroscopy in terms of QCD's elementary degrees of freedom. During the next ten years a programme of experiment and theory will be conducted that can address these questions. We present a Dyson-Schwinger equation perspective on this effort with numerous illustrations, amongst them: an interpretation of string-breaking; a symmetry-preserving truncation for mesons; the nucleon's strangeness sigma-term; and the neutron's charge distribution.

8 pages, 7 figures. Contribution to the Proceedings of the Workshop on the Physics of the Excited Nucleon (NSTAR2009), Institute of High Energy Physics (IHEP) of the Chinese Academy of Sciences, Beijing, 19-22 April 2009

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Cited by in corpus (33)

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• Bridging a gap between continuum-QCD and ab initio predictions of hadron observables
• Studies of Nucleon Resonance Structure in Exclusive Meson Electroproduction
• Distribution Functions of the Nucleon and Pion in the Valence Region
• The pion: an enigma within the Standard Model
• Commentary on rainbow-ladder truncation for excited states and exotics
• Nucleon and $\Delta$ elastic and transition form factors
• Spectrum of hadrons with strangeness
• Perspective on the origin of hadron masses
• Empirical Consequences of Emergent Mass
• Three Lectures on Hadron Physics
• Elastic and transition form factors of the Δ(1232)
• Reflections upon the Emergence of Hadronic Mass
• Baryon and meson screening masses
• Contact-interaction Faddeev equation and, inter alia, proton tensor charges
• Proton tensor charges from a Poincaré-covariant Faddeev equation
• A combined study of the pion's static properties and form factors
• Excited hadrons and the analytical structure of bound-state interaction kernels
• Bethe-Salpeter kernel and properties of strange-quark mesons
• Zero mode in a strongly coupled quark gluon plasma
• N* Structure and Strong QCD
• Couplings between the $\rho$ and $D$- and $D^{\ast }$-mesons
• Baryons and the Borromeo
• The Podolsky propagator in gap and bound-state equations
• Emergent phenomena and partonic structure in hadrons
• Hypothesis of quark binding by condensation of gluons in hadrons
• Looking into the matter of light-quark hadrons
• Contemporary continuum QCD approaches to excited hadrons
• The Charm and Beauty of Strong Interactions
• Heavy-meson chiral Lagrangians, effective flavored couplings, SU(4) flavor breaking and their consequences
• Running Masses in the Nucleon and its Resonances
• Images of the Origin of Mass