Efficient calculation of thermodynamic properties of baryon-rich QCD matter from heavy-ion transport models

TL;DR

The paper introduces MATRICS, a modular framework that efficiently computes thermodynamic properties of baryon-rich QCD matter from heavy-ion collision simulations, enabling scalable and accurate analysis.

Contribution

It presents a novel, efficient method for calculating energy-momentum tensors and charge currents using dynamic grid resolution and particle clustering in heavy-ion collision models.

Findings

Enhanced computational efficiency in tensor calculations.

Accurate thermodynamic property estimation at high baryon densities.

Framework supports large-scale heavy-ion collision simulations.

Abstract

This study presents the MATRICS framework (Modeling Aggregated Tensors for Relativistic Ion Collision Simulations) that implements modular workflows to enable parallel execution of particle generation, grid construction, and tensor calculations for heavy-ion collisions. It introduces an efficient approach to calculating the space-time distribution of the energy-momentum tensor and charge currents from discrete particles generated by transport models. By dynamically adjusting grid resolution based on particle density and clustering particles into representative super-particles, MATRICS optimizes computational efficiency while maintaining high physical accuracy. The framework can also provide a thermodynamic background for electromagnetic thermal emission calculations or serve as initial conditions for hydrodynamic evolution. It offers a powerful tool for exploring the thermodynamic properties of QCD matter at high baryon densities, making it well-suited for large-scale simulations in heavy-ion collision studies.