Fission fragment mass yields of Th to Rf even-even nuclei

TL;DR

This paper predicts fission fragment mass yields of actinide nuclei using a theoretical model that combines macroscopic-microscopic approaches, nuclear shape parametrization, and a 3D collective model, with results compared to experimental data.

Contribution

It introduces a comprehensive theoretical framework for calculating fission fragment yields of Th to Rf even-even nuclei, incorporating advanced shape parametrization and microscopic corrections.

Findings

Predicted fission fragment mass yields align well with experimental data.

Identified the influence of nuclear shape degrees of freedom on fission outcomes.

Provided new predictions for isotopes lacking experimental measurements.

Abstract

Fission properties of the actinide nuclei are deduced from theoretical analysis. We investigate potential energy surfaces and fission barriers and predict the fission fragment mass-yields of actinide isotopes. The results are compared with experimental data where available. The calculations were performed in the macroscopic-microscopic approximation with the Lublin-Strasbourg Drop (LSD) for the macroscopic part and the microscopic energy corrections were evaluated in the Yukawa-folded potential. The Fourier nuclear shape parametrization is used to describe the nuclear shape, including the non-axial degree of freedom. The fission fragment mass-yields of considered nuclei are evaluated within a 3D collective model using the Born-Oppenheimer approximation.