A $SU(4)\otimes O(3)$ scheme for nonstrange baryons

Abstract

We show that nonstrange baryon resonances can be classified according to multiplets of $SU(4)\otimes O(3)$. We identify spectral regularities and degeneracies that allow us to predict the high spin spectrum from 2 to 3 GeV.

Comments: 3 pages. Talk given at the IVth International Conference on Quarks and Nuclear Physics (QNP06), Madrid, 5-10 June 2006. Accepted for publication in Eur. Phys. J. A