Coulomb Gauge QCD and the Excited Hadron Spectrum

Details Coulomb Gauge QCD and the Excited Hadron Spectrum Coulomb Gauge QCD and the Excited Hadron Spectrum

2010-12-28

arxiv.org/abs/1012.5704v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 4 figures, delivered at NAPP2010 (3d International Conference on Nuclear and Particle Physics with CEBAF at Jefferso

Scientific paper

We discuss progress in understanding the light and heavy quark excited hadron spectrum from Coulomb gauge QCD. For light quark systems we highlight the insensitivity to spontaneous chiral symmetry breaking, which predicts Wigner parity-degeneracy in the highly excited hadron spectrum and allows the quark mass momentum dependence to be experimentally probed. For heavy quark meson decays we invoke the Franck-Condon principle, a consequence of small velocity changes for heavy quarks, to extract qualitative, but model independent, structure insight from the momentum distribution of the decay products.

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