STRUCTURE EFFECTS ON COULOMB DISSOCIATION OF B-8

Coulomb dissociation provides an alternative method for determining th e radiative capture cross sections at astrophysically relevant low rel ative energies. For the break-up of B-8 on Ni-58, we calculate the tot al Coulomb dissociation cross section and the angular distribution for E1, E2 and M1. Our calculations are performed first within the standa rd first-order semiclassical theory of Coulomb excitation, including t he correct three-body kinematics, and later including the projectile-t arget nuclear interactions. We study the dependence of the Coulomb dis sociation cross section on the structure models assumed for the projec tile. A range of potential models for Be-7 + p are compared: we look a t the effect of potential shapes, deformation and inclusion of inelast ic channels in the projectile states. We analyse the relative Fl and E 2 components and investigate the relation between the measured cross s ection and the S-factor S-17 Preliminary Coulomb-nuclear interference results are presented.