Further developments of a multi-phase transport model for relativistic nuclear collisions

TL;DR

This paper reviews the evolution of the multi-phase transport (AMPT) model for simulating relativistic nuclear collisions, highlighting recent developments and future directions to better understand dense matter properties.

Contribution

It provides an updated overview of the AMPT model's components, improvements since 2004, and outlines future enhancements for studying small and large system collisions.

Findings

Enhanced the initial condition modeling in AMPT

Improved the parton cascade algorithms

Outlined future development pathways

Abstract

A multi-phase transport (AMPT) model was constructed as a self-contained kinetic theory-based description of relativistic nuclear collisions as it contains four main components: the fluctuating initial condition, a parton cascade, hadronization, and a hadron cascade. Here, we review the main developments after the first public release of the AMPT source code in 2004 and the corresponding publication that described the physics details of the model at that time. We also discuss possible directions for future developments of the AMPT model to better study the properties of the dense matter created in relativistic collisions of small or large systems.