v 1 2 8 Ju n 19 99 Particle freeze - out and discontinuities in relativistic hydrodynamics
نویسنده
چکیده
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.
منابع مشابه
ar X iv : n uc l - th / 9 90 30 63 v 2 2 0 Ju l 1 99 9 Chemical and Thermal Freeze - Out Parameters
The present knowledge about hadrons produced in relativistic heavy ion collisions is compatible with chemical freeze-out happening when the energy density divided by the particle density reaches the value of 1 GeV. This observation is used to determine the energy dependence of the chemical freeze-out parameters Tch and μ ch B for beam energies varying between 1 and 200 A·GeV. The consequences o...
متن کاملar X iv : n uc l - th / 9 90 30 63 v 1 2 8 M ar 1 99 9 Chemical and Thermal Freeze - Out Parameters
The present knowledge about hadrons produced in relativistic heavy ion collisions is compatible with chemical freeze-out happening when the energy density divided by the particle density reaches the value of 1 GeV. This observation is used to determine the energy dependence of the chemical freeze-out parameters Tch and μ ch B for beam energies varying between 1 and 200 A·GeV. The consequences o...
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From the particle ratios and the transverse momentum spectra of hadrons in relativistic heavy ion collisions, one can obtain chemical freeze-out temperature T ch and thermal freeze-out temperature T th through the analyses of statistical models [1]. These temperatures are usually different from each other at the AGS, SPS and RHIC energies, i.e., T ch ∼ 160-200 MeV while T th ∼ 100-140 MeV. This...
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