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Abstract:
Based on experimental data of total,nonelastic, elastic cross section and elastic scattering angular distributions for n+Sn reactions, a set of neutron optical model potential parameters is obtained. The inelastic scattering cross sections and angular distributions of discrete levels are calculated and analyzed by the distorted wave Born approximation theory based on the unified Hauser Feshbach theory and the exciton model.With the fitting procedure the neutron optical model potential parameters are obtained.The results indicate that the systematicness of the inelastic scattering cross sections can be given for n+116,118,120,122,124Sn which are all in good agreement with experimental data.
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