Abstract

The reaction 26Mg(p, p) has been studied for proton bombarding energies between 8.3 MeV and 14 MeV. Excitation functions measured in 30 keV steps at five backward angles showed pronounced fluctuations for the transitions into the different final states. The cross sections for the (p, p 0) (p, p 2) and (p, p 4) reaction have been analysed in terms of the various correlation functions of the statistical theory and compared with statistical-model predictions. Allowance was made for finite range of data errors. In general, the fluctuations were found to be damped by direct reaction contributions, the relative contributions of which were estimated for the elastic scattering by two methods. The first method used the variance of the fluctuating cross sections, whereas the second one employed an analysis of the energy-averaged angular distributions by means of the optical model plus Hauser-Feshbach estimates for the compound nucleus cross sections.

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