Angular Anisotropy of Nucleon-Induced Fission of Heavy Nuclei at Intermediate Energies

In the frame of the statistical model a semi-empirical description of the angular anisotropy of fission fragments induced by intermediate energy nucleons is given. The dependence of angular anisotropy on nucleon energy and the fissility parameter of the composite nucleus, the temperature of the fissioning nucleus at the transition state and the role of nonstatistical effects are discussed.