Hydrodynamic Modeling and the QGP Shear Viscosity

TL;DR

This paper reviews recent advances in hydrodynamic modeling of the quark-gluon plasma, focusing on extracting its shear viscosity using the hybrid VISHNU model that combines viscous hydrodynamics with hadron cascade simulations.

Contribution

It provides a summary of the latest progress in modeling QGP shear viscosity with a focus on the VISHNU hybrid approach.

Findings

Successful extraction of QGP shear viscosity using VISHNU model

Enhanced understanding of QGP evolution through hybrid modeling

Quantitative estimates of QGP viscosity consistent with experimental data

Abstract

In this article, we will briefly review the recent progress on hydrodynamic modeling and the extraction of the quark-gluon plasma (QGP) specific shear viscosity with an emphasis on results obtained from the hybrid model VISHNU that couples viscous hydrodynamics for the macroscopic expansion of the QGP to the hadron cascade model for the microscopic evolution of the late hadronic stage.