Fusion Ofli9withpb208

We have measured the fusion excitation function for the Li-9+Pb-208 reaction for near-barrier projectile center-of-mass energies of 23.9 to 43.0 MeV using the ISAC2 facility at TRIUMF. The alpha-emitting evaporation residues (At211-214) were stopped in the Pb-208 target, and their decay was measured. The isotopic yields at each energy were in good agreement with the predictions of a statistical model code (HIVAP). The measured fusion excitation function shows evidence for substantial sub-barrier fusion enhancement not predicted by current theoretical models. There is a suppression of the above barrier cross sections relative to these model predictions. The implications of this measurement for studying the fusion of Li-11 with Pb-208 are discussed.