Gamma-Ray Multiplicity Distributions In O-16+Sm-152 Fusion Near And Below The Coulomb Barrier

We have studied gamma-ray multiplicity distributions for the system O-16 + 152Sm at five beam energies in the range 60-80 MeV, near and below the Coulomb barrier. The data were obtained using a large array of gamma-ray detectors and an efficient evaporation-residue detector system utilizing an electrostatic deflector. The data are in good agreement with predictions of angular momentum distributions calculated using a coupled-channels model incorporating the effects of deformation.