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NEOS - QCD equation of state
NEOS is a QCD equation of state model 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. It is aimed for the applications to relativistic hydrodynamic models of nuclear collisions at wide range of collision energies.
Equation of state with Tsallis statistics
Tsallis statistics is a generalization of Boltzmann-Gibbs statistics. It is known to describe particle spectra of relativistic nuclear collisions in an extended momentum range. The QCD equation of state based on Tsallis statistics is constructed using hadron resonance gas and parton gas models for hydrodynamic simulations. It is tabulated for different Tf and q, each consisting of three tables. The columns in the files are energy density (GeV/fm3), pressure (GeV/fm3), and temperature (GeV).
When you use the equation of state for your publication, the reference below should be cited. We are not responsible for results produced by a third party using these tables.
Referece: K. Kyan, AM, Phys. Rev. D 106, 054004 (2022)
Files: tsallis_eos.tar.gz
Contact: akihiko.monnai_at_oit.ac.jp (replace _at_ with @)
Viscous distortion factors for phase-space distribution
Phase-space distribution is distorted from the Bose-Einstein or the Fermi-Dirac ones in off-equilibrium systems. Grad's moment expansion allows one to estimate the distortion δf self-consistently in the framework of relativistic kinetic theory.
δf = DΠΠuμpμ + (BΠΠΔμν + B~ΠΠuμuν + Bππμν)pμpν
The distortion of distribution is known to be important in relativistic hydrodynamic analyses of high-energy heavy ion collisions, as the fluid-particle conversion process known as freeze-out is calculated with Cooper-Frye formula, which is based on kinetic theory.
Files: Please contact me at akihiko.monnai_at_oit.ac.jp (replace _at_ with @) for details.