Many-body correlations and Isospin equilibration in multi-fragmentation processes

TL;DR

This paper investigates isospin equilibration in multi-fragmentation processes using semiclassical many-body calculations, revealing the importance of many-body correlations beyond mean-field approaches.

Contribution

It introduces a detailed study of isospin equilibration involving gas and liquid phases, emphasizing the role of many-body correlations in the process.

Findings

Many-body correlations are crucial for understanding isospin equilibration.

The symmetry term's repulsive/attractive action influences the process.

Semiclassical microscopic calculations provide insights beyond mean-field models.

Abstract

Isospin equilibration in multi-fragmentation processes is studied for the system $^{40}Cl+^{28}Si$ at 40 MeV/nucleon. The investigation is performed through semiclassical microscopic many-body calculations based on the CoMD-II model. The study has been developed to describe isospin equilibration processes involving the gas and liquid "phases" of the total system formed in the collision processes. The investigation of the behavior of this observable in terms of the repulsive/attractive action of the symmetry term, highlights many-body correlations which are absent in semiclassical mean-field approaches.