The Fission Barrier of Heaviest Nuclei From a Macroscopic-Microscopic Perspective

TL;DR

This paper discusses the calculation of fission barriers in heavy nuclei using a macroscopic-microscopic approach, providing insights into energy landscapes and comparing results with other models.

Contribution

It introduces a simplified macroscopic-microscopic method for calculating nuclear fission barriers and demonstrates its application to actinides and superheavy nuclei.

Findings

Calculated fission barriers for actinides and superheavy nuclei.

Compared results with mean-field models showing consistency.

Highlighted advantages of the macroscopic-microscopic approach.

Abstract

The concept of fission barrier - a parameter which enters in quantitative estimates of various observables related to nuclear fission - is presented from the point of view of theory based on the picture of nuclear deformation and energy dependent on it. We describe the macroscopic-microscopic method of calculating energy landscapes which is simpler than the selfconsistent mean field approach, and, due to its two-component nature, seems to be easier to adjust to experimental data. We present some models and methods used to find the fission saddles. For the purpose of illustration, we present results on fission barriers in actinides and superheavy nuclei, obtained within one macroscopic-microscopic model. We discuss comparisons with results of other models, including some of the mean-field type.