Probing the Nuclear Structure of ¹¹⁰Cd via Coulomb Excitation

Several recent studies [1-6] of the Cd (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 14N [7], 32S[5,6], 60Ni[7], and binary partners to gain a full view of the nuclear collective structure. The current work examines the 110Cd+208Pb study of the campaign, completed at the ATLAS facility of Argonne National Laboratory. The 110Cd beam at 470 MeV, satisfying the ‘safe’ energy condition, impinged on a self-supporting target of 208Pb. the reaction resulted in the observable population up to the 8+ yrast state at 3.2 MeV. The de-exciting g-ray transitions were detected by the GRETINA array consisting of 12 quadruplets of highly segmented HPGe detectors. The backscattered 110Cd ions were detected using the silicon detector BAMBINO. The particle-gamma coincidence yields will be analyzed with GOSIA code constrained by the transition matrix elements resulting from the Coulomb-excitation analysis with the lighter reaction partners [5,6], as well as other spectroscopic information from recently performed beta-decay experiments. The goal of the analysis is to determine intrinsic shapes of the low-lying 0+ states using the Kumar-Cline sum-rule analysis. This presentation will offer a first look at our preliminary results, highlighting key findings.