Fusion reaction studies for the Be9+Y89 system at above-barrier energies
2020
Complete fusion (CF) cross section measurement for the weakly bound 9Be projectile interacting with the
intermediate mass target 89Y has been extended to energies greater than the fusion barrier, by implementing
off-line characteristic γ -ray detection techniques. The available experimental data for the 9Be + 89Y 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 9Be beam with targets of different
atomic mass. Through the study, it is revealed that the extended CF excitation function for the 9Be + 89Y 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.
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