Fourth P₁₁ resonance predicted by the constituent quark model

We point out a distinguishing difference between constituent quark models based on one-gluon exchange and one-boson exchange dynamics. In the latter, the P₁₁ nucleon resonance with predominantly symmetrical spatial wave function in the N=4 band becomes 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 P₁₁ 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.