Shell model analysis of the Ni56 spectrum in the full pf model space

Abstract

We present a full pf-shell spectroscopy of the low-lying states of Ni56 using the GXPF1A interaction. Both the ground-state band and the first deformed band, as well as the transition probabilities, compare favorably with the experimental data. We analyze the significance of the contributions of N-particle N-hole configurations to the full model calculations, similarly to the analysis obtained for Si28 in the sd shell some 20 years ago. © 2006 The American Physical Society.