https://doi.org/10.1051/epjconf/202430601004
Macroscopic-Microscopic Fission Yields
1 Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA
2 Center for Theoretical Astrophysics, Los Alamos National Laboratory, Los Alamos, NM 87545, USA
3 Nuclear and Data Theory Group, Nuclear and Chemical Science Division, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
4 TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
5 Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
* e-mail: mumpower@lanl.gov
Published online: 18 October 2024
We utilize the macroscopic-microscopic approach to fission to calculate nascent fragment distributions. Assuming strongly damped shape motion, we run many iterations of a Metropolis random walk across nuclear potential-energy surfaces to obtain sufficient scission statistics. Our nuclear potential surfaces consist of a macroscopic energy from the Finite-Range Liquid-Drop Model (FRLDM) and microscopic terms that arise from the single-particle spectra. We compare our predictions for two major actinides to experimental data. We present global trends from this modeling that manifest as a function of mass number of the fissioning species. We discuss the impact of fission yield modeling on nucleosynthetic outcomes.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
