Do we have three $S_{11}$ resonances in the second resonance region?
Nuclear Theory
2008-11-26 v1
Abstract
We review the status of the N resonances in light of some recent theoretical and phenomenological results. Whereas the quark model predicts two such resonances around 1.6 GeV, there is considerable evidence for a third resonance in this energy range. This suggests that a or quasi-bound state may indeed exist below the kaon production threshold. We show that kaon production experiments, in particular photoproduction off nucleons, would be very sensitive to the existence of the third resonance.
Keywords
Cite
@article{arxiv.nucl-th/9511041,
title = {Do we have three $S_{11}$ resonances in the second resonance region?},
author = {Zhenping Li and Ron Workman},
journal= {arXiv preprint arXiv:nucl-th/9511041},
year = {2008}
}
Comments
9 pages and 1 figure. The figure is available at ftp://clsaid.phys.vt.edu/pub/pr/s11.ps