Abstract
Abstract The mean lives of excited states in 28Al formed in the 27Al(d,p) reaction have been determined from the measured Doppler shift of γ-rays emitted in coincidence with the protons. The multipole order and maximum admixture of higher order γ-radiation are determined. In several cases the result leads to a definite assignment or strongly favoured assumptions for the spin value of the excited state. A total of 28 levels below 5.45 MeV excitation energy have been studied. Previously mean lives have been reported for twelve of these levels. The experimental results indicate that several closely spaced doublets may be explained as a s 1 2 neutron coupled to states in 27Al.
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