Equation of state at finite densities for QCD matter in nuclear collisions

Akihiko Monnai, Björn Schenke, and Chun Shen

Phys. Rev. C 100, 024907 – Published 15 August 2019

Abstract

We construct the QCD equation of state at finite chemical potentials including net baryon, electric charge, and strangeness, based on the conserved charge susceptibilities determined from lattice QCD simulations and the equation of state of the hadron resonance gas model. For the application to relativistic heavy-ion collisions we consider the situation of strangeness neutrality and matter with a fixed electric charge-to-baryon ratio, resembling that of heavy nuclei. The importance of finite electric charge and strangeness chemical potentials for particle production in heavy-ion collisions is demonstrated using hydrodynamic simulations.

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Received 19 February 2019

DOI:https://doi.org/10.1103/PhysRevC.100.024907

Physics Subject Headings (PhySH)

Hydrodynamic models Quark-gluon plasma Relativistic heavy-ion collisions Thermal & statistical models

Nuclear Physics

Authors & Affiliations

Akihiko Monnai ¹, Björn Schenke², and Chun Shen^3,4

¹KEK Theory Center, Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization, Tsukuba, Ibaraki 305-0801, Japan
²Physics Department, Brookhaven National Laboratory, Upton, New York 11973, USA
³Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48201, USA
⁴RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973, USA

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Vol. 100, Iss. 2 — August 2019

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Physical Review C

covering nuclear physics