LI-7-LI-7 ELASTIC AND INELASTIC-SCATTERING AT E(LAB)=8-17 MEV

Elastic and inelastic scattering in the system Li-7 + Li-7 was investi gated experimentally in the energy range of E(lab) = 8-17 MeV applying the method of kinematic coincidence. Sizeable cross sections were obs erved in the whole energy range for inelastic excitation of a single L i-7 nucleus to its first excited state at E = 0.47761 MeV as well as for mutual excitation of both nuclei. Systematic optical model and bot h one-step and two-step DWBA calculations were performed with the aim of describing in a consistent manner all three channels studied. This was achieved with optical model potentials fitted simultaneously to al l elastic scattering data. They were then used to generate form factor s for both single and mutual inelastic scattering as well as distorted waves for DWBA description of inelastic scattering considering the sa me deformation length for all form factors. Potential parameters deriv ed show, despite these constraints, a continuous ambiguity in case of volume absorption while those with surface absorption can be grouped i n six distinct families each of them featuring continuous ambiguities. The impact of real and imaginary form factors on single inelastic exc itation is reversed for potentials with volume and surface absorption, while mutual excitation is dominated by imaginary form factors.