Effect of the Wriggling Vibrations of Aligned Nuclei on the Angular Distribution of Fragments from Low-Energy Fissioning

Resumo

The possibility is investigated of observing deviations in the angular distributions of fragments from the low-energy binary fission of aligned actinide nuclei by resonant neutrons, calculated within the theory of quantum fission with allowance for the wriggling vibrations of fissile nuclei using angular distributions determined with Bohr’s formula. The relative errors of the experimental anisotropy coefficients of these distributions are compared to deviations of the theoretical anisotropy coefficients, calculated with allowance for wriggling vibrations of fissile nuclei, from those calculated using Bohr’s formula. Estimates are obtained on this basis for the wriggling vibration parameters: and for ²³³U and ²³⁵U nuclei, respectively, for which deviations from Bohr’s formula can be detected.