Shell-model studies on exotic nuclei around 132Sn Original Research Article

The study of exotic nuclei around 132Sn is a subject of current experimental and theoretical interest. Experimental information for nuclei in the vicinity of 132Sn, which have been long inaccessible to spectroscopic studies, is now available thanks to new advanced facilities and techniques. Some new data on these neutron-rich nuclei may suggest a modification in the shell structure. They are, in fact, somewhat different from what one might expect by extrapolating the existing results for N<82, and as a possible explanation a change in the single-proton level scheme has been suggested. This is stimulating shell-model studies in this region. Here, we discuss results of recent shell-model studies of 132Sn neighbors, focusing attention on calculations employing realistic effective interactions.