1st Measurement of the B(E2) of the 1/2- ->3/2- transition in Be-7

Several ab-initio methods have made predictions on the E2 transition strengths for the first excited state transition in Be-7 This Be-7 B(E2) has never been measured and the ab-initio results vary depending on nuclear structure assumptions made. This measurement will help provide guidance on the structures of importance in this nucleus, especially considering the role clustering plays. To measure this E2 transition strength, a Coulomb Excitation experiment was performed at the University of Notre Dame. Be-7 was produced and separated using TwinSol, two solenoid magnets designed to separate out ions of interest. A beam of Be-7 ions were scattered off a gold target and the gamma rays from the inelastically scattered ions were detected using six clover Ge detectors. The results for the E2 transition strength and its comparison to multiple Ab-Initio approaches will be shown. In addition, Geant4 simulations for a future experiment with Li-8 will be shown, with the goal of both measuring the B(E2) value and of determining the effect virtual E1 excitations have on the overall Coulomb Excitation cross-section.