Detailed Study of the Nuclear Structure of 110Cd Employing Coulomb Excitation

Several recent studies [1-3] of the ¹¹⁰Cd (Z=48) nucleus have provided strong evidence towards a new outlook on its nuclear structure from its former textbook example as a spherical harmonic vibrator to possessing multiple shape coexistence. To probe the interpretation more finely, a series of complementary Coulomb excitation studies was carried out with different beam (³²S,¹⁴N, ⁴⁰Ni, ¹¹⁰Cd) and target (¹¹⁰Cd, ²⁰⁸Pb) reaction partners to gain a full view of the nucleus’ underlying structure. The current work examines the final study of the campaign, completed at the ATLAS facility of Argonne National Laboratory. With a safe beam condition, the ¹¹⁰Cd beam impinged on a self-supporting target of ²⁰⁸Pb; the EM interaction resulted in the observable population up to the 8+ yrast state at 3.2 Mev. The de-excited g-ray transitions were detected by the GRETINA array consisting of 12 quadruplets of highly segmented HPGe detectors. The backscattered ions were detected using the silicon detector BAMBINO. The matrix elements deduced from the Coulomb excitation experiments with lighter reaction partners will be used as input to our GOSIA analysis with the aim to determine the intrinsic shapes of the low-lying 0+ states. Preliminary results from the current analysis will be presented.