Level Densities of Heavy Nuclei by the Shell Model Monte Carlo Method

TL;DR

This paper demonstrates the use of the shell model Monte Carlo method to accurately calculate nuclear level densities in heavy nuclei, effectively handling large configuration spaces and correlating well with experimental data.

Contribution

It introduces the application of the shell model Monte Carlo method to compute level densities and collective enhancement factors in heavy nuclei, overcoming computational limitations of traditional methods.

Findings

Calculated level densities closely match experimental data.

The method effectively handles large configuration spaces.

Provides insights into collective enhancement factors.

Abstract

The microscopic calculation of nuclear level densities in the presence of correlations is a difficult many-body problem. The shell model Monte Carlo method provides a powerful technique to carry out such calculations using the framework of the configuration-interaction shell model in spaces that are many orders of magnitude larger than spaces that can be treated by conventional methods. We present recent applications of the method to the calculation of level densities and their collective enhancement factors in heavy nuclei. The calculated level densities are in close agreement with experimental data.