Shell model results for 47–58Ca isotopes in the fp, fpg9/2 and fpg9/2d5/2 model spaces

Abstract

We have reported shell-model results for 47–58Ca isotopes in the fp, fpg9/2 and fpg9/2d5/2 model spaces using realistic NN interaction. We have also performed a systematic shell-model study using interactions derived from in-medium similarity-renormalization group (IM-SRG) targeted for a particular nucleus with chiral NN and 3N forces. The results obtained are in a reasonable agreement with the available experimental data in fp model space with NN interaction. It is shown that the g9/2 and d5/2 orbitals play an important role for heavier neutron-rich 54–58Ca isotopes, while it is marginal for 47–52Ca. We have also examined spectroscopic factor strengths using NN and NN + 3N interactions for recently available experimental data.