- th / 0 50 40 47 v 1 1 5 A pr 2 00 5 THERMINATOR : THERMal heavy - IoN generATOR †

THERMINATOR is a Monte Carlo event generator designed for study-ing of particle production in relativistic heavy-ion collisions performedat such experimental facilities as the SPS, RHIC, or LHC. The pro-gram implements thermal models of particle production with singlefreeze-out. It performs the following tasks: 1) generation of stable par-ticles and unstable resonances at the chosen freeze-out hypersurfacewith the local phase-space density of particles given by the statisticaldistribution factors, 2) subsequent space-time evolution and decaysof hadronic resonances in cascades, 3) calculation of the transverse-momentum spectra and numerous other observables related to thespace-time evolution. The geometry of the freeze-out hypersurface andthe collective velocity of expansion may be chosen from two success-ful models, the Cracow single-freeze-out model and the Blast-Wavemodel. All particles from the Particle Data Tables are used. Thecode is written in the object-oriented c++ language and complies tothe standards of the ROOT environment. Submitted to Computer Physics Communications † Work supported in part by the Polish State Committee for Scientific Research grant2 P03B 059 25. PROGRAM SUMMARYTitle of the program: THERMINATOR,April 2005, version 1.0; Computer:PC, Pentium III,IV, or Athlon, 512 MB RAM not hardware dependent;(any computer with the c++ compiler and the ROOT environment [1]) Operating system:Linux: Mandrake 9.0, Debian 3.0, SuSE 9.0, Red Hat FEDORA 3, etc.,Windows XP with Cygwin ver. 1.5.13-1 and gcc ver. 3.3.3 (cygwin special);ROOT ver. 4.02.00;– NOT SYSTEM DEPENDENTProgramming language: c++ with the ROOT librariesSize of the package: (324 KB directory 40 KB compressed distribution archive),without the ROOT libraries (see http://root.cern.ch for details on the ROOT[1] requirements). The output files created by the code need 1.1 GB for each500 events.Distribution format: tar gzip fileNumber of lines in distributed program, including test data, etc.: 6516