Particle Freeze-out in Self-Consistent Relativistic Hydrodynamics

Details Particle Freeze-out in Self-Consistent Relativistic Hydrodynamics Particle Freeze-out in Self-Consistent Relativistic Hydrodynamics

1999-03-30

arxiv.org/abs/nucl-th/9903072v2

Physics

Nuclear Physics

Nuclear Theory

Improved version; 70 pages

Scientific paper

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 of the freeze-out hypersurface the obtained results are different from the well known Cooper-Frye formula and lead to the shock-like freeze-out. A simple-wave hydrodynamic solution is considered in detail to illustrate some aspects of new freeze-out procedure.

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