Abstract
Excitation functions of deep-inelastic scattering and fission have been measured for +11258,124Sn at bombarding energies between 230 and 290 MeV. It is found that even at energies below the Coulomb barrier deep-inelastic scattering is an important reaction channel with yields similar to that of fusion. The total reaction cross sections are now in good agreement with the sum of the measured fusion, deep-inelastic, and quasielastic scattering yields. Attempts to reproduce the sub-barrier fusion yields by coupled-channels calculations are discussed.