Fusion reaction studies for the Be9+Y89 system at above-barrier energies

Complete fusion (CF) cross section measurement for the weakly bound Be- 9 projectile interacting with the intermediate mass target Y-89 has been extended to energies greater than the fusion barrier, by implementing off-line characteristic gamma-ray detection techniques. The available experimental data for the Be-9 + Y-89 reaction system were compared with the theoretical predictions, using the PLATYPUS code that is based on a classical dynamical model. By introducing the breakup probability that deduced in the literature from the fitting of the experimental data, the model managed to reproduce the CF cross sections of Be-9 beam with targets of different atomic mass. Through the study, it is revealed that the extended CF excitation function for the Be-9 + Y-89 system is consistent with the systematical behavior that the prompt-breakup probability at above-barrier energies is roughly independent of the target in the reactions induced by the same weakly bound projectiles.