Initial state and hydrodynamic modeling of heavy-ion collisions at RHIC BES energies

TL;DR

This paper develops a 3D initial state model for heavy-ion collisions at RHIC BES energies, incorporating baryon stopping and fluctuations to better understand early collision dynamics.

Contribution

It introduces a classical string deceleration model to generate initial energy and baryon density profiles, advancing the modeling of early-stage collision physics.

Findings

Net baryon rapidity distribution analysis

Longitudinal decorrelation of transverse geometry

Insights into baryon stopping mechanisms

Abstract

We present a fully three-dimensional initial state model for relativistic heavy-ion collisions at RHIC Beam Energy Scan (BES) collision energies. The initial energy and net baryon density profiles are produced based on a classical string deceleration model. The baryon stopping and fluctuations during this early stage of the collision are investigated by studying the net baryon rapidity distribution and longitudinal decorrelation of the transverse geometry.