Application of the 2 alpha + n Three-Body Cluster Model of the Be-9 Nucleus in the Reaction Be-9(He-3, He-3)Be-9

Elastic-scattering processes in the He-3 + Be-9 reaction are studied on the basis of the 2 alpha + n three-body cluster model of the Be-9 nucleus. The Be-9 three-body wave function obtained by the variational method in the Gaussian basis is used to derive an analytic representation of nuclear-matter density distribution. The interaction potential calculated for the He-3 + Be-9 system by the double-folding method is employed to analyze experimental data on the differential cross section for the elastic-scattering process Be-9 (He-3, He-3)Be-9 at collision energies between 30 and 60 MeV