Angular and Spin Distributions of Primary Fission Fragments

Theoretical approaches proposed by A. Bulgac et al. (Washington University, Seattle) and J. Randrup et al. (Lawrence Berkeley National Laboratory (LBNL)) for studying correlations of angles between the spins of double spontaneous fragments and low-energy fission fragments are considered and compared. The idea of J. Randrup’s theoretical team (Lawrence Berkeley National Laboratory (LBNL)) on 2D and 3D spin is analyzed. Angular distributions for actinide nuclei are derived with allowance for the special geometry of fissioning nuclei (2D) and compared to results from A. Bulgac et al. (Washington University, Seattle).