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On freeze-out problem in relativistic hydrodynamics

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arxiv 0810.2262 v2 pith:3ZA4CDZW submitted 2008-10-13 nucl-th hep-ph

On freeze-out problem in relativistic hydrodynamics

classification nucl-th hep-ph
keywords freeze-outrelativisticcooper--fryeframehydrodynamicspuzzlealternativeanother
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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A finite unbound system which is equilibrium in one reference frame is in general nonequilibrium in another frame. This is a consequence of the relative character of the time synchronization in the relativistic physics. This puzzle was a prime motivation of the Cooper--Frye approach to the freeze-out in relativistic hydrodynamics. Solution of the puzzle reveals that the Cooper--Frye recipe is far not a unique phenomenological method that meets requirements of energy-momentum conservation. Alternative freeze-out recipes are considered and discussed.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Hydrodynamics and Energy Correlators

    hep-ph 2026-04 unverdicted novelty 6.0

    Energy-energy correlators in heavy-ion collisions exhibit classical hydrodynamic scaling from collective flow at large angles within the small-angle regime, collective modes at smaller angles, and light-ray OPE at eve...

  2. Space-time regions of high baryon density and baryon stopping in heavy-ion collisions

    nucl-th 2026-02 conditional novelty 6.0

    3FD hydrodynamics predicts larger and longer-lived regions of dense baryon matter in Au+Au collisions at 3–19.6 GeV than JAM transport, with V4(3n0) decreasing monotonically with energy.