Surface delta-interaction in nucleon-pair shell model

Yan An Luo, Nankai University
Feng Pan, Louisiana State University
Ping Zhi Ning, Nankai University
J. P. Draayer, Louisiana State University

Abstract

The effect of surface delta-interaction (SDI) in nucleon-pair shell model truncated to an SD-subspace is studied. The results show that with the single-particle level splitting fully taken into account, for realistic SDI strength, the surface delta-interaction also enhance the E2 and M1 transitions of low-lying states.