The isotopes Cd 122, 124, 126 were studied in a “safe” Coulomb-excitation experiment at the radioactive ion-beam facility REX-ISOLDE at CERN. The reduced transition probabilities B (E 2; 0 g. s.+→ 2 1+) and limits for the quadrupole moments of the first 2+ excited states in the three isotopes were determined. The onset of collectivity in the vicinity of the Z= 50 and N= 82 shell closures is discussed by comparison with shell model and beyond mean-field calculations.
American Physical Society
21 Jan 2014
Volume: 89 Issue: 1 Pages: 014313
Physical Review C