Elastic, inelastic, and one-neutron transfer angular distributions of Li-6+Sn-120 at energies near the Coulomb barrier br

The elastic scattering, first 2+ and 3??? target inelastic excitation and one neutron pickup angular distributions for the 6Li + 120Sn reaction have been measured for three bombarding energies (19, 24, and 27 MeV). Data have been analyzed through coupled-channel calculations and continuum-discretized coupled-channel calculations extended to include target excitation. In general, both theoretical models give a reasonable description of the data. For the elastic and inelastic angular distributions taken at Elab = 24 and 27 MeV, the continuum-discretized coupled-channel results are slightly better in comparison to the coupled-channel predictions. For the elastic and inelastic angular distributions measured at Elab = 19 MeV, the effect of the break-up channel seems to be quite important. At this energy, the elastic scattering data can be well explained by coupled channel calculations in which a strong absorptive optical imaginary potential is considered. In particular, the continuum-discretized coupled-channel theoretical results provided the best description of the 3??? excitation data at 19 MeV.