Abstract
Measurements of the probabilities for Coulomb excitation of the first 2 +; states in 114Cd and 116Cd have been made with 4He, 12C and 16O ions. The deviations observed from first-order perturbation theory are interpreted in terms of the static electric quadrupole moments Q 2 of the first 2 +; states of the two nuclei. The values of these static quadrupole moments are thus found to lie in the range −0.54 > Q 2 > −0.90 eb for 114Cd and −0.70 > Q 2 > −1.16 eb for 116Cd. The main uncertainty in Q 2 arises from a lack of knowledge of the signs of the E2 matrix elements to higher 2 +; states which also affect the excitation of the first 2 +; state.
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