Studies of near-barrier fusion induced by neutron-rich nuclei at HRIBF

Fusion induced by neutron-rich radioactive beams is a topic of current interest. The f ndings will be useful for using radioactive beams to produce superheavy elements. Results from recent measurements performed with neutron-rich radioactive Sn and Te beams are presented. Coupled-channels calculations were carried out to study the observed sub-barrier fusion enhancement. The fusion probability in Sn on Ni was probed by comparing the evaporation residue cross sections at high excitation energies.