# Relative mass distributions of neutron-rich thermally fissile nuclei within statistical model

## TL;DR

This paper investigates the fission yield distributions of neutron-rich uranium and thorium nuclei using a statistical model with temperature-dependent level density parameters, providing insights into their binary fission at various excitation energies.

## Contribution

It introduces a method to calculate fission yields of neutron-rich nuclei using relativistic mean field formalism and temperature-dependent level densities, which is novel for these isotopes.

## Key findings

- Fission yields vary with temperature for 250 U and 254 Th.
- The model predicts relative yields at T=1, 2, and 3 MeV.
- Level density parameters are derived from relativistic mean field calculations.

## Abstract

We study the fission yield of recently predicted thermally fissile neutron-rich uranium and thorium nuclei using statistical model. The level density parameters needed for the study are evaluated from the excitation energies of temperature dependent relativistic mean field formalism. The excitation energy and the level density parameter for a given temperature are employed in the convolution integral method to obtain the probability of the particular fragmentation. As representative case, we present the results for the binary fission yield of 250 U and 254 Th. The relative yields are presented for three different temperatures T = 1, 2 and 3 MeV.