Deformation of the 01,2+ states in 110Cd from low-energy coulomb excitation

Abstract

Electromagnetic properties of 110Cd were studied via low-energy Coulomb excitation with 32S and 14N beams. Magnitudes and relative signs of eight E 2 matrix elements, including quadrupole moments of the 21+ and 22+ states, were determined using the least-squares code GOSIA. From those, quadrupole deformation parameters of the 01,2,3+ states were inferred, providing for the first time conclusive evidence for the non-axial character of the ground state in 110Cd. The experimental results were compared with new calculations using the general quadrupole collective Bohr Hamiltonian model with SLy4 and UNEDF0 interactions. The non-axiality of the ground state is reproduced by the present calculations, independently of the interaction used.