https://doi.org/10.1140/epja/s10050-024-01326-2
Regular Article - Theoretical Physics
Fission fragment distributions within time-dependent density functional theory
1
School of Nuclear Science and Technology, University of Chinese Academy of Sciences, 100049, Beijing, China
2
Institut für Kernphysik, Institute for Advanced Simulation and Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425, Jülich, Germany
3
Institute of Theoretical Physics, Chinese Academy of Sciences, 100190, Beijing, China
Received:
28
February
2024
Accepted:
18
April
2024
Published online:
6
May
2024
A notable issue, the proper description of mass and charge distributions of fission fragments within non-adiabatic descriptions of fission dynamics, is investigated by performing double particle number projection on the outcomes of time-dependent Hartree–Fock (TDHF) simulation. The induced fission process of the benchmark nucleus 
is studied. In the three-dimensional Cartesian coordinate without any symmetry restrictions, we get the static fission pathway from the two-dimensional potential energy surface, and then the fission dynamics from saddle to scission point are obtained using TDHF. We show that the charge numbers of primary heavy fragments from TDHF simulation strongly depend on the deformations of initial configurations via the two asymmetric fission channels, which can be distinguished according to the dynamical fission trajectories. The charge distribution of fission fragments is well reproduced using the double particle number projection technique. After applying the Gaussian kernel estimation based on the distribution from the double particle number projection technique, the mass distribution is also consistent with the experimental results. Besides, the results of the total kinetic energy of fission fragments are reasonably consistent with the experiments.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
