Relativistic freeze-in
نویسندگان
چکیده
منابع مشابه
Shock-like Freeze-out in Relativistic Hydrodynamics
We have formulated a self-consistent model of freeze-out on an arbitrary hypersurface. It conserves energy and momentum across the discontinuity between ideal fluid and the gas of free particles. Energy and momentum of those free particles have non-equilibrium values that could be a signal for the formation of hot and dense matter in heavy ion collisions.
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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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Identified charged pion, kaon, and proton spectra are used to explore the system size dependence of bulk freeze-out properties in Cu + Cu collisions at √ s NN = 200 and 62.4 GeV. The data are studied with hydrodynamically motivated blast-wave and statistical model frameworks in order to characterize the freeze-out properties of the system. The dependence of freeze-out parameters on beam energy ...
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The relativistic kinetic equations for the two domains separated by the hypersurface with both spaceand time-like parts are derived. The particle exchange between the domains separated by the time-like boundaries generates source terms and modifies the collision term of the kinetic equation. The correct hydrodynamic equations for the “hydro+cascade” models are obtained and their differences fro...
متن کاملv 1 2 8 Ju n 19 99 Particle freeze - out and discontinuities in relativistic hydrodynamics
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-...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2019
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2019.134961