Scalar meson exchange and the baryon spectra

Details Scalar meson exchange and the baryon spectra Scalar meson exchange and the baryon spectra

1998-09-15

arxiv.org/abs/hep-ph/9809389v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, RevTex, to appear in the Proceedings of the Third International Conference on "Quark Confinement and the Hadron Spect

Scientific paper

We explore the role of a scalar meson exchange interaction between quarks in a semirelativistic constituent quark model where the quarks are subject to a linear confinement. We search for a variational solution and show that the gap between the N=1 band and the ground state N=0 band increases with the strength of the scalar meson exchange interaction potential. This result has good implications on the description of the low-lying baryon resonances, especially on the Roper vs. negative parity resonances ordering.

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