Extended shell-model calculation for even N=82 isotones with realistic effective interactions

摘要

The shell model within the $2s1d0g_{7/2}0h_{11/2}$ shell is applied tocalculate nuclear structure properties of the even Z=52 - 62, N=82 isotones.The results are compared with experimental data and with the results of aquasiparticle random-phase approximation (QRPA) calculation. The interactionused in these calculations is a realistic two-body G-matrix interaction derivedfrom modern meson-exchange potential models for the nucleon-nucleoninteraction. For the shell model all the two-body matrix elements arerenormalized by the $\hat{Q}$-box method whereas for the QRPA the effectiveinteraction is defined by the G-matrix.