Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-10-31
PiN Newslett. 16 (2002) 225-231
Physics
High Energy Physics
High Energy Physics - Phenomenology
6 pages postscript including 4 figures, Proceedings of "9th International Symposium on Meson-Nucleon Physics and the Structure
Scientific paper
On the basis of the three-particle Bethe-Salpeter equation we formulated a relativistic quark model for baryons. Assuming the propagators to be given by their free form with constituent quark masses and the interaction kernel by an instantaneous potential, which contains a string-like parameterization of confinement and a flavor dependent interaction motivated by instanton effects we can account for the major features in the baryon spectrum, such as the low position of the Roper resonance and the occurrence of approximate parity doublets apparent in the Nucleon- and Lambda-spectra.
Loering Ulrich
Metsch Bernard
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