Antisymmetrized molecular dynamics and its applications to cluster phenomena

TL;DR

This paper reviews antisymmetrized molecular dynamics (AMD) methods applied to nuclear structure and reactions, highlighting cluster phenomena in stable and unstable nuclei, and successful descriptions of multifragmentation in heavy-ion collisions.

Contribution

It provides a comprehensive review of AMD applications to nuclear clustering, including new insights into valence neutron roles and reaction dynamics.

Findings

Cluster structures in neutron-rich nuclei are common in both stable and unstable isotopes.

AMD successfully describes multifragmentation in heavy-ion collisions.

Valence neutrons play important roles in nuclear clustering phenomena.

Abstract

Structure and reaction studies with a method of antisymmetrized molecular dynamics (AMD) were reviewed. Applications of time-independent and time-dependent versions of the AMD were described. In applications of time-independent AMD to nuclear structure studies, structures of neutron-rich nuclei such as Be, C, Ne, and Mg isotopes were described focusing on cluster aspects. Important roles of valence neutrons were discussed. The results suggested a variety of cluster structures appear also in unstable nuclei as well as in stable nuclei. Deformation and cluster phenomena in $Z\sim N$ nuclei in $p$- and $sd$- shell regions were also discussed. Applications of time-dependent AMD contain various topics such as fragmentation in heavy-ion collisions as well as nuclear responses. The AMD calculations successfully describe multifragmentation which is one of the remarkable phenomena in heavy-ion collisions. The approach is able to link reactions and nuclear matter properties. The studies suggested the important balance between single-particle motions and correlations to form clusters and fragments.