Shell model description of Ge isotopes

Abstract

A shell model study of the low energy region of the spectra in Ge isotopes for 38 ≤ N ≤ 50 is presented, analyzing the excitation energies, quadrupole moments, B(E2) values and occupation numbers. The theoretical results have been compared with the available experimental data. The shell model calculations have been performed employing three different effective interactions and valence spaces. We have used two effective shell model interactions, JUN45 and jj44b, for the valence space f5/2 pg9/2 without truncation. To include the proton subshell f7/2 in valence space we have employed the fpg effective interaction due to Sorlin et al., with 48Ca as a core and a truncation in the number of excited particles.