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Published November 2021 | Version v1
Journal article Metadata-only

Comparison of fission and quasi-fission modes

Creators

  • 1. Department of Fundamental and Theoretical Physics and Department of Nuclear Physics and Accelerator Sciences, Research School of Physics, The Australian National University, Canberra ACT 2601 (Australia)
  • 2. Department of Physics and Astronomy, Vanderbilt University, Nashville, TN 37235 (United States)
  • 3. Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824 (United States)

Description

Quantum shell effects are known to affect the formation of fragments in nuclear fission. Shell effects also affect quasi-fission reactions occurring in heavy-ion collisions. Systematic time-dependent Hartree-Fock simulations of 50Ca+176Yb collisions show that the mass equilibration between the fragments in quasi-fission is stopped when they reach similar properties to those in the asymmetric fission mode of the 226Th compound nucleus. Similar shell effects are then expected to determine the final repartition of nucleons between the nascent fragments in both mechanisms. Future experimental studies that could test these observations are discussed.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.physletb.2021.136648

Additional details

Identifiers

DOI
10.1016/j.physletb.2021.136648;
PII
S0370269321005888;

Publishing Information

Journal Title
Physics Letters. Section B
Journal Volume
822
Journal Page Range
vp.
ISSN
0370-2693
CODEN
PYLBAJ

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
54011495
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S07: ISOTOPES AND RADIATION SOURCES;
Descriptors DEI
ASYMMETRY; CALCIUM 50; COMPOUND NUCLEI; COMPUTERIZED SIMULATION; FISSION; HARTREE-FOCK METHOD; ION COLLISIONS; NUCLEONS; QUASI-FISSION; THORIUM 226; TIME DEPENDENCE; YTTERBIUM 176
Descriptors DEC
ACTINIDE NUCLEI; ALKALINE EARTH ISOTOPES; ALPHA DECAY RADIOISOTOPES; APPROXIMATIONS; BARYONS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CALCIUM ISOTOPES; CALCULATION METHODS; COLLISIONS; ELEMENTARY PARTICLES; EVEN-EVEN NUCLEI; FERMIONS; HADRONS; HEAVY ION REACTIONS; HEAVY NUCLEI; INTERMEDIATE MASS NUCLEI; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MINUTES LIVING RADIOISOTOPES; NUCLEAR REACTIONS; NUCLEI; RADIOISOTOPES; RARE EARTH NUCLEI; SECONDS LIVING RADIOISOTOPES; SIMULATION; STABLE ISOTOPES; THORIUM ISOTOPES; YTTERBIUM ISOTOPES

Optional Information

Copyright
Copyright (c) 2021 The Author(s). Published by Elsevier B.V.