Scalar meson exchange and the baryon spectra
High Energy Physics - Phenomenology
2007-05-23 v1
Abstract
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.
Keywords
Cite
@article{arxiv.hep-ph/9809389,
title = {Scalar meson exchange and the baryon spectra},
author = {P. Stassart and Fl. Stancu and J. -M. Richard},
journal= {arXiv preprint arXiv:hep-ph/9809389},
year = {2007}
}
Comments
6 pages, RevTex, to appear in the Proceedings of the Third International Conference on "Quark Confinement and the Hadron Spectrum III, Jefferson Lab. (Newport News, USA), June 7-12, 1998, World Scientific (Singapore)