Heavy ion event generator HYDJET++ (HYDrodynamics plus JETs)

Details Heavy ion event generator HYDJET++ (HYDrodynamics plus JETs) Heavy ion event generator HYDJET++ (HYDrodynamics plus JETs)

2008-09-16

arxiv.org/abs/0809.2708v2

Comput.Phys.Commun.180:779-799,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

44 pages including 6 figures as EPS-files; prepared using LaTeX package for publication in Computer Physics Communications

Scientific paper

10.1016/j.cpc.2008.11.015

HYDJET++ is a Monte-Carlo event generator for simulation of relativistic heavy ion AA collisions considered as a superposition of the soft, hydro-type state and the hard state resulting from multi-parton fragmentation. This model is the development and continuation of HYDJET event generator (Lokhtin & Snigirev, 2006, EPJC, 45, 211). The main program is written in the object-oriented C++ language under the ROOT environment. The hard part of HYDJET++ is identical to the hard part of Fortran-written HYDJET and it is included in the generator structure as a separate directory. The soft part of HYDJET++ event is the "thermal" hadronic state generated on the chemical and thermal freeze-out hypersurfaces obtained from the parameterization of relativistic hydrodynamics with preset freeze-out conditions. It includes the longitudinal, radial and elliptic flow effects and the decays of hadronic resonances. The corresponding fast Monte-Carlo simulation procedure, C++ code FAST MC (Amelin et al., 2006, PRC, 74, 064901; 2008, PRC, 77, 014903) is adapted to HYDJET++. It is designed for studying the multi-particle production in a wide energy range of heavy ion experimental facilities: from FAIR and NICA to RHIC and LHC.

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