Particle Freeze-out within the Self-Consistent Hydrodynamics
نویسنده
چکیده
Here I discuss some implicit assumptions of modern hydrodynamic models and argue that their accuracy cannot be better than 10-15 %. Then I formulate the correct conservation laws for the fluid emitting particles from an the arbitrary freeze-out (FO) hypersurface (HS) and show that the derived momentum distribution function of emitted particles does not contain negative contributions which appear in the famous Cooper-Frye formula. Further I analyze the typical pitfalls of some hydro models trying to alternatively resolve the FO problem.
منابع مشابه
Particle Freeze-out in Self-consistent Relativistic Hydrodynamics
The particle emission in relativistic hydrodynamic model is formulated assuming a sharp 3-dimensional space-time freeze-out hypersurface. The boundary conditions correspond to the energy-momentum and charge conservation between fluid and the gas of free particles . The emission and possible feedback of particles are included into the self-consistent hydrodynamic scheme. For the time-like parts ...
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