FUSION BARRIER DISTRIBUTIONS AND FISSION ANISOTROPIES

Fusion excitation functions for O-16,O-17 + Sm-144 have been measured to high precision. The extracted fusion barrier distributions show a d ouble-peaked structure interpreted in terms of coupling to inelastic c ollective excitations of the target. The effect of the positive Q-valu e neutron stripping channel is evident in the reaction with O-17. Fiss ion and evaporation residue cross-sections and excitation functions ha ve been measured for the reaction of O-16 + Pb-208 and the fusion barr ier distribution and fission anisotropies determined. It is found that the moments of the fusion l-distribution determined from the fusion a nd fission measurements are in good agreement.