Oct 14 – 17, 2009
Europe/Zurich timezone
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Lattice based Equation of State and its effect on the hydrodynamical evolution

Oct 15, 2009, 9:30 AM
TH Auditorium (CERN)

TH Auditorium


Talk Investigating Dynamics and the EOS with Correlations Dynamics and the Equation of State (2/2)


Pasi Huovinen (Johann Wolfgang Goethe-Universität)


At low temperatures the hadron resonance gas model is expected to give a fair description of thermodynamic quantities even if the lattice QCD calculation leads to significantly different result. In this talk I show that he discrepancies are significantly reduced if we take into account the larger values of quark mass, i.e. larger hadron masses, used in lattice calculations as well as the finite spacing errors. Thus, I propose thatelow the critical temperature, T_c, the physical EoS is close to the hadron resonance gas EoS, and present a parametrization interpolating consistently between hadron resonance gas EoS below and lattice EoS above T_c. In the second part of the talk I show how such an Equation of State affects the evolution of the system and compare it with old calculations done using an Equation of State with a first order phase transition.

Primary author

Pasi Huovinen (Johann Wolfgang Goethe-Universität)

Presentation materials