FISSION ANGULAR-DISTRIBUTIONS FOR THE INCOMPLETE FUSION REACTIONS

The fragment angular distributions for 35.9, 41.0, 45.6, and 50.0 MeV/ u O-16+Au-197, 50 MeV/u O-16+Tb-159, and 50 MeV/u O-16+Bi-209 reaction s have been measured by the solid state nuclear track detectors. After subtraction of the contribution of intermediate mass fragment (IMF), the fission angular distributions have been fitted by the transition s tate statistical model (TSM) and the single-spin standard theory to ex tract the spins of the fissioning nuclei. The relation between spins a nd bombarding energies is also discussed.