Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2006-08-25
Phys.Rev.C74:064901,2006
Physics
Nuclear Physics
Nuclear Theory
28 pages,7 figures
Scientific paper
10.1103/PhysRevC.74.064901
We have developed a fast Monte Carlo procedure of hadron generation allowing one to study and analyze various observables for stable hadrons and hadron resonances produced in ultra-relativistic heavy ion collisions. Particle multiplicities are determined based on the concept of chemical freeze-out. Particles can be generated on the chemical or thermal freeze-out hypersurface represented by a parameterization or a numerical solution of relativistic hydrodynamics with given initial conditions and equation of state. Besides standard space-like sectors associated with the volume decay, the hypersurface may also include non-space-like sectors related to the emission from the surface of expanding system. For comparison with other models and experimental data we demonstrate the results based on the standard parameterizations of the hadron freeze-out hypersurface and flow velocity profile under the assumption of a common chemical and thermal freeze-out. The C++ generator code is written under the ROOT framework and is available for public use at http://uhkm.jinr.ru/.
Amelin N. S.
Lednicky Richard
Lokhtin I. P.
Malinina L. V.
Pocheptsov T. A.
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