Examining Shape Co-existence in 116Sn via the Beta Decay of 116In

The stable even-even tin nuclei have a closed proton shell at Z=50 and occupy the mid-shell region of neutrons, which has led to interest in them, and they have emerged as good candidates for shape co-existence studies. The 116Sn nucleus, which sits exactly at the mid-shell (N=66), has been extensively studied in the past through~fusion evaporation, coulomb excitation, neutron scattering and beta decay experiments, which has revealed an extensive level scheme and evidence for shape co-existence. However, with our advanced detection set-up and good beam intensity we are able to see additional weak transitions, some of which could yield evidence for another deformed excited state at 2545 keV. \newline ~ \newline The experiment was conducted at TRIUMF, Canada's National Laboratory for Nuclear and Particle Physics. A beam of 116In was used to populate states in 116Sn via beta decay. The resulting gamma rays were observed with the 8pi array consisting of 20 high-purity germanium detectors coupled with a suite of ancillary detectors. We will present the enhanced level scheme constructed from this experiment.