Speaker
Andrea Beraudo
(Universita e INFN (IT))
Description
We present a state of the art QCD Equation Of State (EOS) in the limit of vanishing baryon density. Continuum-extrapolated lattice-QCD data with realistic quark masses by the Budapest-Wuppertal collaboration are employed in the high-temperature regime and are joined to a Hadron-Resonance Gas (HRG) EOS at lower temperatures. Since experimental data from heavy-ion collisions suggest that particle ratios are frozen before kinetic freeze-out, with two different temperatures describing the particle yields and the slope of pT-spectra, we offer the user the possibility of employing both a Chemical Equilibrium EOS and a more realistic Partial Chemical Equilibrium one, with resonant reactions allowed in the hadronic phase but with particle ratios fixed at the chemical freeze-out temperature.
Parametrizations of the various thermodynamic quantities are offered to the user so that the whole setup can be easily implemented into existing hydrodynamic codes. A snapshot of preliminary results at non-vanishing baryon density will be possibly displayed.
Primary authors
Andrea Beraudo
(Universita e INFN (IT))
Claudia Ratti
(Wuppertal University)
Dr
Marcus Bluhm
(SUBATECH Nantes)
Mr
Paolo Alba
(Università di Torino)
Co-author
Prof.
Wanda Maria Alberico
(Università di Torino)
