The investigation of the excitation energies of the 2(1)(+)-states in the neutron-rich Cd isotopes shows an irregular behaviour when approaching the neutron shell-closure at N = 82. The energy of the 2(1)(+)-state in Cd-128 is lower than the one in Cd-126. The transition strength B(E2, 0(gs)(+) -> 2(1)(+)) in the even isotopes Cd122-128 was measured in Coulomb excitation experiments with the high-purity germanium detector array MINIBALL at REX-ISOLDE (CERN). The values for Cd-122,Cd-124 coincide with beyond-mean-field calculations with a resultant prolate deformation, whereas Cd-126,Cd-128 are better described by shell-model calculations.
|Name||EPJ Web of Conferences|
Boenig, S., Ilieva, S., Kroell, T., Scheck, M.
, Balabanski, D., Bauer, C., ... De Witte, H. (2014). Quadrupole collectivity in neutron-rich Cd isotopes
. In INPC 2013 - INTERNATIONAL NUCLEAR PHYSICS CONFERENCE, VOL. 1
(Vol. 66).  (EPJ Web of Conferences). EDP Sciences. https://doi.org/10.1051/epjconf/20146602012