Particle Freeze-out and Discontinuities in Relativistic Hydrodynamics

Bugaev, K. A.; Gorenstein, M. I.; Greiner, W.

Particle Freeze-out and Discontinuities in Relativistic Hydrodynamics

Authors

Bugaev, K. A.

Gorenstein, M. I.

Greiner, W.

Description

Freeze-out of particles in relativistic hydrodynamics is considered across a 3-dimensional space-time hypersurface. The conservation laws for time-like parts of the freeze-out hypersurface require different values of temperature, baryonic chemical potential and flow velocity in the fluid and in the final particle spectra. We analyze this freeze-out discontinuity and its connection to the shock-wave phenomena in relativistic hydrodynamics.
6 figures