Shell-model study of mirror nuclei with modern charge-dependent NN potential
C. Qi, F. R. Xu
Abstract
The properties of T=1/2 mirror nuclei in the fp shell have been studied with a microscopic residual interaction. The isospin-nonconserving interaction is derived from a high-precision charge-dependent Bonn NN potential using the folded-diagram renormalization method. The level structures of the nuclei are calculated, obtaining excellent agreements with experimental observations till the 0f7/2 band termination. The role played by isospin symmetry breaking on ground-state displacement energies and mirror energy differences is discussed, which may help to explain the long-standing Nolen-Schiffer anomaly. Electromagnetic and weak transition properties are presented, with discussions on the asymmetry in analogous transitions.
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