Fission barriers heights in A$\sim$ 200 mass region

TL;DR

This paper analyzes fission barrier heights in the A~200 mass region using a statistical model that incorporates shell correction damping, finding good agreement with microscopic-macroscopic models and minimal shell correction effects at the saddle point.

Contribution

It provides a consistent statistical model analysis of fission barriers in the A~200 region, considering shell correction damping and comparing with microscopic-macroscopic models.

Findings

Fission barriers agree well with microscopic-macroscopic models.

Shell corrections at the saddle point are not significant.

Damping of shell correction with excitation energy is considered.

Abstract

Statistical model analysis has been carried out for $p$ and $\alpha$ induced fission reactions using a consistent description for fission barrier and level density in A $\sim$ 200 mass region. A continuous damping of shell correction with excitation energy have been considered. Extracted fission barriers agree well with the recent microscopic-macroscopic model. The shell corrections at the saddle point were found to be not significant.