II. The optical model applied to the elastic scattering of nucleons by various light nuclei

Abstract

The Optical Model of the nucleus has been applied to the elastic scattering of 9·5 mev protons by He, C, N, O, F, Ne and A, and 14 mev neutrons by C, N and O. In general, fair agreement has been obtained for a square-well potential, but the results suggest that for higher energies and heavier nuclei a shaping of the well is necessary. By making the nuclear radius a variable parameter, instead of 1·45 × A ^1/3 × 10^×13 cm, better agreement could probably be obtained. The mean free path of nucleons of these energies in nuclear matter is found to be larger than the nuclear radius. No simple relation was found between the depth of the potential-well and the atomic weight.