EXPLORATORY STUDIES OF THE ELASTIC-SCATTERING OF LI-11+C-12

Calculations have been made of the elastic scattering of Li-11 + C-12 at E/A = 30 and 85 MeV as an example of the scattering to be expected for "exotic" neutron-rich light nuclei. The real optical potential was generated from a folding model using Hartree-Fock densities for Li-11. A variety of assumptions for the absorptive imaginary potential was explored, subject to the important constraint that the predicted reaction cross section remain reasonable. Contrary to some expectations, we provide evidence that these weakly bound systems do not exhibit the diffractive type of scattering that is characteristic of strong absorption. If anything their more diffuse real potentials can result in an enhancement of the refractive features.