Hindrance of fusion induced by 6He Original Research Article

We analyze fusion cross sections induced by the 6He halo projectile in the framework of the double folding São Paulo potential, which has been shown to be a reliable potential for the analysis of fusion cross sections induced by stable weakly bound nuclei. The results show that the fusion cross sections of 6He + 209Bi, 238U are suppressed at energies above the barrier, when compared with coupled channel calculations that do not take into account the projectile breakup, whereas they are in agreement with the calculations at sub-barrier energies.