Complete and incomplete fusion of Be9 + Tm169,Re187 at near-barrier energies

We report the results of the measurements of complete and incomplete fusion of the ${}^{9}\text{Be}+{}^{169}\text{Tm}$ and $^{187}\mathrm{Re}$ systems at energies close to the Coulomb barrier. The activation technique with the detection of offline gamma rays was used to derive the cross sections. By comparing the experimental cross sections with coupled-channel calculations that do not include the breakup channel, we found suppression of the complete fusion of the order of 30% for both systems, at energies slightly above the barrier. This suppression corresponds roughly to the measured incomplete fusion. We also investigate a systematic behavior of the suppression of complete fusion cross sections for $^{9}\mathrm{Be}$ on different targets and we found that it does not depend on the target.