Lifetimes of the first four excited states of 32S

Abstract

The mean lifetimes of the first four excited states of 32S were obtained using the attenuated Doppler shift method and the reaction 32S(α, α') 32S. The results are {ce:inline-formula}τ m = 0.23±0.06{/ce:inline-formula}, {ce:inline-formula}1.05± 0.30{/ce:inline-formula}, {ce:inline-formula}0.048±0.013{/ce:inline-formula} and {ce:inline-formula}0.18±0.04ps{/ce:inline-formula} for the levels at excitation energies 2230, 3777, 4278 and 4458 keV respectively. Deduced E2 transition rates are compared with the predictions of collective and shell-model descriptions of these levels.