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Title: Role of dynamical effects in the formation of T-Odd asymmetries for products of polarized-neutron-induced ternary fission of nuclei

Basic dynamical effects that accompany the cold-polarized-neutron-induced binary and ternary fission of actinide nuclei and which determine the properties of T -odd asymmetries in angular distributions of various prescission and evaporated light third particles emitted in true and delayed ternary fission are analyzed on the basis of quantum-mechanical fission theory. It is emphasized that effects associated with the conservation of axial symmetry of the fissioning system under study at all stages of its evolution from the formation of neutron resonance states of the fissile compound nucleus to the separation of its fission fragments, including the appearance of zero wriggling vibrations of the cold compound nucleus in the vicinity of its scission point, are of particular importance, the influence of quantum collective rotation of the polarized fissile system on the asymmetry of the angular distribution of both fission fragments and third particles being taken into account. It is shown that the difference in the behavior of the coefficients characterizing the T -odd asymmetries under analysis for the target nuclei being studied can be explained, upon taking into account the interference between the fission amplitudes for the neutron resonance states of fissile compound nuclei, by the difference in the contributions of evenmore » and odd components of the amplitudes of angular distributions of third particles to the coefficients in question.« less
Authors:
 [1] ;  [2] ;  [1]
  1. Voronezh State University (Russian Federation)
  2. National Research Center Kurchatov Institute, Petersburg Nuclear Physics Institute (Russian Federation)
Publication Date:
OSTI Identifier:
22472172
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Atomic Nuclei; Journal Volume: 78; Journal Issue: 5; Other Information: Copyright (c) 2015 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ACTINIDE NUCLEI; ANGULAR DISTRIBUTION; AXIAL SYMMETRY; COMPOUND NUCLEI; ENERGY LEVELS; FISSION FRAGMENTS; INTERFERENCE; NEUTRONS; QUANTUM MECHANICS; TERNARY FISSION; VISIBLE RADIATION