2021/02/14 by G. F. Bertsch, Bertsch, G. F., K. Hagino +1
Earth and Planetary Sciences · Physics and Astronomy · #Cold Fusion and Nuclear Reactions #Nuclear physics research studies #nucl-th #physics.atm-clus #physics.chem-ph
paper · pdf · doi:10.48550/arxiv.2102.07084
5 pages, 5 figures (4 pages, 2 figures for the Supplemental Material)
arxiv created 2021/02/14 · arxiv updated 2021/02/16
We propose a configuration-interaction (CI) representation to calculate induced nuclear fission with explicit inclusion of nucleon-nucleon interactions in the Hamiltonian. The framework is designed for easy modeling of schematic interactions but still permits a straightforward extension to realistic ones. As a first application, the model is applied to branching ratios between fission and capture in the decay modes of excited fissile nuclei. The ratios are compared with the Bohr-Wheeler transition-state theory to explore its domain of validity. The Bohr-Wheeler theory assumes that the rates are insensitive to the final-state scission dynamics; the insensitivity is rather easily achieved in the CI parameterizations. The CI modeling is also capable of reproducing the branching ratios of the transition-state hypothesis which is one of the key ingredients in the present-day theory of induced fission.