Similarity of nuclear structure in 132Sn and 208Pb regions: proton-neutron multiplets

Abstract

Starting from the striking similarity of proton-neutron multiplets in 134Sb and 210Bi, we perform a shell-model study of nuclei with two additional protons or neutrons to find out to what extent this analogy persists. We employ effective interactions derived from the CD-Bonn nucleon-nucleon potential renormalized by use of the V-low-k approach. The calculated results for 136Sb, 212Bi, 136I, and 212At are in very good agreement with the available experimental data. The similarity between 132Sn and 208Pb regions is discussed in connection with the effective interaction, emphasizing the role of core polarization effects.

4 pages, 3 figures, 2 tables

References in corpus (6)

• Shell-model calculations and realistic effective interactions
• Shell Structure of Exotic Nuclei
• Shell-model Structure of Exotic 135Sb
• Proton-neutron multiplets in exotic 134Sb: testing the shell-model effective interaction
• Long standing problem of 210Bi and the realistic neutron-proton effective interaction
• Shell-model structure of exotic nuclei beyond 132Sn

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