Extended shell model calculation for even N = 82 isotones with a realistic effective interaction

Abstract The shell model within the 2s1d0g 7 2 0h 11 2 shell is applied to calculate nuclear structure properties of the even Z = 52−62, N = 82 isotones. The results are compared with experimental data and with the results of a quasiparticle random-phase approximation (QRPA) calculation. The interaction used in these calculations is a realistic two-body G-matrix interaction derived from modern meson-exchange potential models for the nucleon-nucleon interaction. For the shell model all the two-body matrix elements are renormalized by the Q -box method whereas for the QRPA the effective interaction is defined by the G-matrix.