Study of Resonant States in Halo Nuclei

Abstract

A strategy for theoretical study of neutron halo nuclei is proposed: At the first stage (I), we solve a few-body problem of the core-plus-neutron model assuming a single frozen configuration for the core cluster. At the second stage (II), we take into account the configuration mixing of the core cluster and solve the coupling between motion of valence neutrons and nuclear correlations of the core cluster in a coupled channel framework. In studies of both stages, we show that the complex scaling method is very powerful in investigating three-body resonant states in addition to two-body resonances which play an important role in understanding halo nuclei.