On the fourth P_11 resonance predicted by the constituent quark model
Nuclear Theory
2009-11-07 v1 High Energy Physics - Phenomenology
Abstract
We point out a distinguishing difference between constituent quark models based on one-gluon exchange and one-boson exchange dynamics. In the latter one, the P_11 nucleon resonance with predominantly symmetrical spatial wave function in the N=4 band gets strongly attracted such that it drops below some states in the N=2 band. Calculations of strong decay widths are presented in order to establish an identification with experimental states. Our results are relevant for the interpretation of the fourth P_11 resonance that was found in the partial wave analysis of the Zagreb group and recently discussed by Capstick et. al. in the framework of a model based on one-gluon exchange.
Keywords
Cite
@article{arxiv.nucl-th/0104024,
title = {On the fourth P_11 resonance predicted by the constituent quark model},
author = {L. Theußl and R. F. Wagenbrunn},
journal= {arXiv preprint arXiv:nucl-th/0104024},
year = {2009}
}
Comments
3 pages, using revtex