Few-body resonances in light nuclei

Abstract

We have localized several few-body resonances in light nuclei, using methods which can properly handle two- or three-body resonant states. Among other results, we predict the existence of a three-neutron resonance, small spin-orbit splittings between the low-lying states in He-5 and Li-5, the nonexistence of the soft dipole resonance in He-6, new 1+ states in Li-8 and B-8, and the presence of a nonlinear amplification phenomenon in the 0+_2 state of C-12.

11 pages with 3 figures. Proceedings of the Resonances in Few-Body Systems Conference, Sarospatak, Hungary, 4-8 September, 2000. To be published in Few-body Syst. Suppl. The postscript file and more information are available at http://matrix.elte.hu/~csoto