A way forward towards the improvement of tensor force in pf-shell

Abstract

In many shell model interactions, the tensor force monopole matrix elements are observed to retain sys-tematic trends originating in the bare tensor force. In this work, however, we note for GX-interactions of pf-shell that the seven out of ten T =1 tensor force monopole matrix elements do not share these system-atic. We ameliorate this disparity making use of Yukawa-type tensor force and spin-tensor decomposition. Furthermore, we have modified the single-particle energy of 1p3/2orbit and two TBMEs of 0f-orbit, and the revised interaction has been tested from Ca to Ge isotopes with various physics viewpoints. The results are found to be satisfactory with respect to the experimental data.