Description of resonant states in the shell model

Abstract

A technique for describing scattering states within the nuclear shell model is proposed. This technique is applied to scattering of nucleons by $\alpha$ particles based on ab initio No-Core Shell Model calculations of ${}^5$He and ${}^5$Li nuclei with JISP16 NN interaction.

Comments: Submitted to Phys. Part. Nucl. Few misprints are corrected