Abstract

The 14 MeV differential (n, p) cross sections of about 40 nuclei have been measured at 120° to the incident neutrons using a photographic plate method. The results are compared with the cross sections calculated according to the statistical theory of nuclear reactions and it is shown that good agreement exists between theory and experiment provided a level density function of the form exp2(aU) 1 2 with a ≈ 1 10 A is used and the pairing energy δ is taken into account. Experimental values of δ and the nuclear temperatures are given. The (n, np) cross sections of 13 of the nuclei have been measured and the results are discussed in terms of a reaction mechanism based on the statistical model.

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