Abstract
A dynamical approach is proposed for calculating the angular distributions of fission fragments. The relaxation time for the degree of freedom associated with the projection of the total angular momentum of the nuclear system onto the symmetry axis and the coefficient of damping of the fission mode are the basic parameters of this approach. Experimental data on the anisotropy of the angular distributions of fission fragments and on the multiplicities of prescission neutrons are analyzed within the proposed model for 16O+208Pb (E lab=110–148 MeV), 16O+232Th (120–160 MeV), 16O+248Cm (110–148 MeV), and 16O+238U (96–148 MeV). The relaxation time and the damping coefficient are estimated at τK=(5–6)×10−21 s and β=4×1021 s−1, respectively.
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