SHELL STRUCTURE AND CORRELATION STUDIED BY LARGE-SCALE SHELL-MODEL CALCULATIONS

Recent advances in the large-scale shell-model calculation performed by the authors are presented. Since the shell model, a powerful tool to study the nuclear structure, is often confronted with the computational limitation when applied to a heavier region, the Monte Carlo shell model is proposed to overcome the limitation. Owing to the development of the large-scale shell-model calculation, we can obtain a systematic description of some regions. From this the relation between the effective interaction and the nuclear structure is clarified, as exemplified in the N ~ 20 region, the pf-shell region, and the medium-heavy mass region.