Nucleus-nucleus potential, energy dissipation and mass dispersion in fusion and transfer reactions

TL;DR

This paper investigates nucleus-nucleus potentials, energy dissipation, and mass dispersion in fusion and transfer reactions using microscopic mean-field dynamics, achieving good agreement with experimental data and improving the understanding of reaction mechanisms.

Contribution

The study introduces a microscopic mean-field approach to accurately reproduce potentials, energy dissipation, and mass dispersion, enhancing the theoretical description of nuclear reactions.

Findings

Nucleus-nucleus potentials match experimental data.

Energy dissipation shows universal behavior across reactions.

Including initial fluctuations improves mass dispersion predictions.

Abstract

The nucleus-nucleus potential and energy dissipation in fusion reactions are obtained from microscopic mean-field dynamics. The deduced potentials nicely reproduce the one extracted from experimental data. Energy dissipation shows a universal behaviour between different reactions. Also, the dispersion of mass distribution in transfer reaction is investigated in a stochastic mean-field dynamics. By including initial fluctuations in collective space, the description of the dispersion is much improved compared to that of mean field only. The result is consistent with the macroscopic phenomenological analysis of the experimental data.