Coulomb break-up of halo nuclei within an adiabatic model

摘要

We investigate the Coulomb dissociation of halo nuclei, assuming that the excitation of the projectile is to states in the low-energy continuum. The method used retains all finite-range effects associated with the interactions between the break-up fragments and can use realistic wavefunctions for the halo nuclei. We apply the method to Coulomb break-up of ~(6)He and ~(19)C on heavy targets, at incident energies below 100 MeVucleon, for calculations of alpha particle energy distributions and parallel momentum distributions of ~(18)C, respectively. The absolute magnitudes of the energy distributions and the widths of the parallel momentum distributions are sensitive to the assumed structures of the halo nuclei.