Quasifission dynamics in TDHF

TL;DR

This paper reviews the use of the time-dependent Hartree-Fock (TDHF) method to study quasifission dynamics, especially in the context of superheavy element formation, highlighting recent advances and comparisons with experimental data.

Contribution

It demonstrates the application of TDHF calculations to quasifission observables in the $^{48}$Ca+$^{249}$Bk system, providing new insights into the reaction mechanism.

Findings

TDHF can effectively model quasifission dynamics

Good agreement with experimental data for specific systems

Quasifission limits superheavy nucleus formation

Abstract

For light and medium mass systems the capture cross-section may be considered to be the same as that for complete fusion, whereas for heavy systems leading to superheavy formations the evaporation residue cross-section is dramatically reduced due to the quasifission (QF) and fusion-fission processes thus making the capture cross-section to be essentially the sum of these two cross-sections, with QF occurring at a much shorter time-scale. Consequently, quasifission is the primary reaction mechanism that limits the formation of superheavy nuclei. Within the last few years the time-dependent Hartree-Fock (TDHF) approach has been utilized for studying the dynamics of quasifission. The study of quasifission is showing a great promise to provide insight based on very favorable comparisons with experimental data. In this article we will focus on the TDHF calculations of quasifission observables for the $^{48}$Ca+$^{249}$Bk system.