(α, <I>d</I>) and (α, <I>t</I>) Reactions on Be<SUP>9</SUP>, F<SUP>19</SUP> and Al<SUP>27</SUP> at 28.6 MeV

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Abstract

Momentum spectra were obtained at several angles for deuteron and triton groups from the (α, d) and the (α, t) reactions on Be9, F19 and Al27 at 28.6 MeV with a broad range magnetic analyzer and nuclear emulsions. The particles were identified by the measurement of the track length of the particles in the emulsions. The (α, d) reactions were found to be similar to the (d, p) reactions in the behaviour of the excitation of the residual nuclear states explained by the Nilsson model. For the single particle states, the higher l-value transition is favoured in the (α, d) reaction in contrast to the (d, p) reaction. In the (α, t) reaction the differential cross sections for the ground states of B10 and Si28 and for the first excited state of Ne20 are preferentialy large and show forward rise.

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