Comprehensive simulation of heavy-ion collisions at non-zero baryon chemical potential

TL;DR

This paper introduces a comprehensive hydrodynamic simulation framework for heavy-ion collisions at various energies, incorporating novel initial state modeling, a crossover equation of state, and transport coefficients at finite baryon densities.

Contribution

It presents a new simulation approach with three key innovations: LEXUS-inspired initial states, a crossover EoS without a critical point, and transport coefficients from quasiparticle theory.

Findings

Simulations cover collision energies from 7.7 to 200 GeV.

The model provides insights into baryon density effects on collision dynamics.

Results can inform future experimental and theoretical studies.

Abstract

We present results of hydrodynamic modelling of Au-Au collisions from $\sqrt{s_{NN}}$ = 7.7 to 200 GeV. Our simulations have three novel components. Firstly, we use a Linear EXtrapolation of Ultrarelativistic nucleon-nucleon Scattering to nucleus-nucleus collisions (LEXUS) inspired Monte-Carlo initial state model. Secondly, we use a crossover equation of state at finite baryon densities without a critical point. Finally, we use departure functions derived from the quasiparticle theory of transport coefficients for hadronic matter at non-zero baryon densities.