P-Odd Asymmetries in the Angular Distributions of Fragments from the Low-Energy Fission of Nuclei by Polarized Neutrons with Allowance for the Wriggling Vibrations of a Fissile Nucleus

Abstract

Results are presented from investigating deviations of the coefficients of P-odd asymmetries in the angular distributions of fragments produced by the low-energy fissioning of actinide nuclei by polarized neutrons, calculated using the quantum fission theory with allowance for wriggling vibrations, from the coefficients of these asymmetries described by Bohr’s formula. By comparing relative errors of the experimental measurements of Р-odd asymmetry coefficients and deviations of the theoretical values of asymmetry coefficients, calculated with allowance for the wriggling vibrations of a fissile nucleus, from their values obtained using Bohr’s formula, estimates of wriggling vibration parameters $${{C}_{{\text{w}}}} \leqslant 30$$ and $${{C}_{{\text{w}}}} \leqslant 15$$ are determined for 233U and 235U nuclei, respectively, for which deviations from Bohr’s formula can be detected.