SUDDEN APPROXIMATION FOR ELASTIC-SCATTERING OF COMPOSITE PROJECTILES AT INTERMEDIATE ENERGIES

Elastic scattering of deuterons by nuclei at intermediate energies is investigated by the sudden approximation. Scattering amplitudes of the deuteron are described in terms of those of the constituent nucleons. They consist of the amplitude of nucleon-nucleus single collision and that of double collision. The neglect of the latter explains similari ty relations between the deuteron observables and the proton ones, whi ch are found in experimental data. Cross sections and vector analyzing powers calculated with the single-collision terms successfully reprod uce the measured ones for O-16, Ca-40 and Ni-58 targets in the energy region, E(d) = 200 approximately 700 MeV. Scattering of Li-6 by Ni-58 is investigated in a similar way assuming the d + alpha cluster model for Li-6.