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Title: Effect of transverse vibrations of fissile nuclei on the angular and spin distributions of low-energy fission fragments

Abstract

It is shown that A. Bohr’s classic theory of angular distributions of fragments originating from low-energy fission should be supplemented with quantum corrections based on the involvement of a superposition of a very large number of angular momenta L{sub m} in the description of the relative motion of fragments flying apart along the straight line coincidentwith the symmetry axis. It is revealed that quantum zero-point wriggling-type vibrations of the fissile system in the vicinity of its scission point are a source of these angular momenta and of high fragment spins observed experimentally.

Authors:
 [1];  [2];  [1]
  1. St. Petersburg State University (Russian Federation)
  2. Voronezh State University (Russian Federation)
Publication Date:
OSTI Identifier:
22612672
Resource Type:
Journal Article
Journal Name:
Physics of Atomic Nuclei
Additional Journal Information:
Journal Volume: 79; Journal Issue: 3; Other Information: Copyright (c) 2016 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-7788
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ANGULAR DISTRIBUTION; CORRECTIONS; FISSILE MATERIALS; FISSION FRAGMENTS; SPIN; SYMMETRY; VIBRATIONAL STATES

Citation Formats

Bunakov, V. E., Kadmensky, S. G., E-mail: kadmensky@phys.vsu.ru, and Lyubashevsky, D. E. Effect of transverse vibrations of fissile nuclei on the angular and spin distributions of low-energy fission fragments. United States: N. p., 2016. Web. doi:10.1134/S1063778816020046.
Bunakov, V. E., Kadmensky, S. G., E-mail: kadmensky@phys.vsu.ru, & Lyubashevsky, D. E. Effect of transverse vibrations of fissile nuclei on the angular and spin distributions of low-energy fission fragments. United States. doi:10.1134/S1063778816020046.
Bunakov, V. E., Kadmensky, S. G., E-mail: kadmensky@phys.vsu.ru, and Lyubashevsky, D. E. Sun . "Effect of transverse vibrations of fissile nuclei on the angular and spin distributions of low-energy fission fragments". United States. doi:10.1134/S1063778816020046.
@article{osti_22612672,
title = {Effect of transverse vibrations of fissile nuclei on the angular and spin distributions of low-energy fission fragments},
author = {Bunakov, V. E. and Kadmensky, S. G., E-mail: kadmensky@phys.vsu.ru and Lyubashevsky, D. E.},
abstractNote = {It is shown that A. Bohr’s classic theory of angular distributions of fragments originating from low-energy fission should be supplemented with quantum corrections based on the involvement of a superposition of a very large number of angular momenta L{sub m} in the description of the relative motion of fragments flying apart along the straight line coincidentwith the symmetry axis. It is revealed that quantum zero-point wriggling-type vibrations of the fissile system in the vicinity of its scission point are a source of these angular momenta and of high fragment spins observed experimentally.},
doi = {10.1134/S1063778816020046},
journal = {Physics of Atomic Nuclei},
issn = {1063-7788},
number = 3,
volume = 79,
place = {United States},
year = {2016},
month = {5}
}