Nuclear Structure in Neutron Rich Gd
ORAL
Abstract
Deformed nuclei at midpoints between closed spherical shells form some of the best nuclear rotors known. Only a few nucleons away from the exact midshell in Z=66 and N=104, these nuclei have been shown to have very consistent I(I+1) spacing in the yrast band. By studying the energy systematics of the non-yrast and parent ground states we can further probe the structure of these nuclei. Nuclei for this study were produced via proton induced fission of $^{238}$U at HRIBF at ORNL. They were measured at the Low-energy RIB Spectroscopy Station (LeRIBSS) which utilizes beta and gamma detection as well as a MTC (Moving Tape Collector) which allows for parent lifetime measurements. In addition to 5 new levels in $^{162}$Gd,levels in $^{162,164}$Gd are both populated via beta- decay up to the 8$^{+}$ yrast levels. We will present and discuss new results from the beta decay of these isotopes.
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