Isospin Dependence in Fission Fragment Yields

TL;DR

This paper demonstrates that isospin conservation effectively predicts fission fragment yields in neutron-induced fission of uranium-238, confirming its role as a key quantum number even at high excitation energies.

Contribution

The study applies the concept of isospin conservation to neutron-rich fission fragments, providing a new approach to predict fission fragment distributions.

Findings

Successfully reproduces experimental fission fragment distributions.

Confirms isospin remains a good quantum number at high excitation energies.

Supports the use of isospin conservation in fission modeling.

Abstract

In the present paper, we explore the idea of isospin conservation in new situations and contexts based on the directions provided by our earlier works. We present the results of our calculations for the relative yields of neutron-rich fission fragments emitted in fast neutron-induced fission, 238U (n, fission) reaction by using the concept of the conservation of isospin and compare with the experimental data. Our results successfully reproduced the gross features of partition wise fission fragments distribution of 238U (n, fission). This confirms that in all kinds of fission, isospin remains pure in neutron-rich systems even at high excitations. Thus, isospin can be proven as an important quantum number for the prediction of fission fragment distribution.