Time-Depentent Hartree-Fock description of heavy ions fusion

TL;DR

This paper applies the Time-Dependent Hartree-Fock theory with Skyrme interactions to model heavy ions fusion, achieving good agreement with experimental fusion barriers but overestimating the excitation function for 16O+208Pb.

Contribution

It introduces a microscopic mean-field approach to heavy ions fusion using TDHF with Skyrme interactions, providing insights into fusion barriers and transfer effects.

Findings

Good agreement with experimental fusion barriers across various nuclei

Overestimation of excitation function for 16O+208Pb by about 16%

Limitations in describing sub-barrier fusion due to mean-field approximation

Abstract

A microscopic mean-field description of heavy ions fusion is performed in the framework of the Time-Dependent Hartree-Fock (TDHF) theory using a Skyrme interaction with the SLy4d parametrization. A good agreement with experiments is obtained on the position of the fusion barriers for various total masses, mass asymmetries and deformations. The excitation function of the 16O+208Pb is overestimated by about 16% above the barrier. The restriction to an independent particles state in the mean-field dynamics prevents the description of sub-barrier fusion. Effect of transfer on fusion is discussed.