Exploring the evolution of the shell structure by means of deep inelastic reactions: recent results from LNL

Abstract

Nuclear structure studies far from stability, which mainly rely on the availability of radioactive nuclear beams, can complementarily be addressed by means of high-intensity beams of stable ions. In such a context, deep-inelastic and multi-nucleon transfer reactions are a powerful tool to populate yrast and non-yrast states in neutron-rich nuclei. Particularly successful here is the combination of large acceptance spectrometers with highly segmented γ-detector arrays. Such devices can provide the necessary channel selectivity to identify very rare signals. Examples are the CLARA and AGATA γ-ray detector arrays coupled with the PRISMA spectrometer at the Legnaro National Laboratories (LNL) in Italy. Large data sets have been collected at LNL for nuclei close to the N=20, 28, 40, 50 and 82 shell closures as well as in new regions of deformation such as, for example, at A=60. Here I will shortly review some recent results.