The analysis of nuclear structure of nuclei near the doubly-magic nucleus 132Sn by large-scale shell model calculations

The nuclear structure of neutron-rich nuclei near the doubly-magic ¹³²Sn is of high interest for both nuclear physics and nuclear astrophysics. Research on nuclear structure properties in this nuclear region will provide reliable groundwork for further investigations of ultra-neutron-rich nuclear structure and new physics in the neutron drip-line region. Until now, only scarce experimental data are available for this nuclear region, and theoretical research on nuclear structure has a great demand for a suitable Hamiltonian. In the present work, the crucial monopole corrections have been found. Reliable explanations of both low-lying levels and core excitations have been shown for nuclei in the A≈130 mass region. Furthermore, level inversion in low-lying states is predicted in the whole region.