Spectroscopy of T=3/2 mirror nuclei via two-step fragmentation using rising

Abstract

Two two step fragmentation reactions were performed using RISING to populate excited states in A 50 mirror nuclei near to the proton drip line, in order to test isospin symmetry. The experiments were designed to observe gamma decays of excited states in the mirror nuclei 53 Ni 53 Mn, which have a large value of total isospin T 3 2 . In the continuing off line analysis, gamma transitions have been observed in 54 Ni indicating that two step fragmentation is a successful technique for spectroscopic investigations of proton rich nuclear systems in this mass region.

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