Nucleon resonances in the constituent quark model with chiral symmetry

Details Nucleon resonances in the constituent quark model with chiral symmetry Nucleon resonances in the constituent quark model with chiral symmetry

1997-12-11

arxiv.org/abs/nucl-th/9712042v1

Prog.Theor.Phys. 100 (1998) 339-352

Physics

Nuclear Physics

Nuclear Theory

14 pages, 6 figures, Latex

Scientific paper

10.1143/PTP.100.339

The mass spectra of nucleon resonances with spin 1/2, 3/2, and 5/2 are systematically studied in the constituent quark model with meson-quark coupling, which is inspired by the spontaneous breaking of chiral symmetry of QCD. The meson-quark coupling gives rise not only to the one-meson-exchange potential between quarks but also to the self-energy of baryon resonances due to the existence of meson-baryon decay channels. The two contributions are consistently taken into account in the calculation. The gross properties of the nucleon resonance spectra are reproduced fairly well although the predicted mass of N(1440) is too high.

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