List of avalable user facilities:
gstar_micky.g - a simple "mickey-mouse" generator distributing particle
like pions, kaons and protons etc throughout phase space in a pseudo-realistic
way. Each specie is generated with a given average multiplicity, pt spectrum
slope and rapidity width.
For a positive mean muliplicity input, Poisson distribution is used
to generate actual particle number per event. A negative multiplicity input
means exact number of particles per event (no fluctuations).
All parameters, including the list of generated species (up to ten),
can by changed via DETP commands. Default parameters can be found in the
Following is an example of the DETP command which sets the micky-mouse
generator for pi+, pi-, K+, k- and protons with following multiplicities,
pt spectrum slopes (c/Gev) and Gaussian width of rapidity distribution:
DETP micky miky.np=5 _
code= 8 9 11 12 14 _
mult= 100 100 10 10 10 _
slope= 5 5 4 4 3.3 _
dy= 2 2 2 2 2
One particular FEATURE: micky mouse event generator is not exepected to
generate splitted events so switch the splitting off with subevent 0
gstar_input.g - input utility to read text output from event different
generators. This routine, if loaded, can substitute the bult-in TX,TXOLD,FZ
format interpretation and/or extends this list with new formats.
Gstar_input routine is scheduled for execution with user/input user
file1 ... command. The input data types are defined by the first letter
of the file extention.
The appropriate input routine will be executed on every trig command.
The number of input files is unlimited thus allowing an arbitrary event
mixing on input.
gstar_readxdf.c - input utility to read an xdr output from event
generators. Currently 2 xdr formats are iplemented here: - separate run/event/track/vertex
tables and a common HEPEVT-like table.
gstar_part.g - an example module showing how to extend table of
particles, known to GEANT. The only particle definition there which is
essential currently to GSTAR, is laserino - a representation of dense laser
beams used for the TPC alignment.
Those utilities can be found in $STAR_PAMS/sim/gstar directory. The recomented
way to use them is by loading selected utilities with gexec gstar_...
. You can also load the whole directory with make sim/gstar or
even the whole sim domain with make sim , but be aware that once
loaded, all modules are by default active, ie micky-mouse events will add
his particles on top of any other input. So, don't load if you don't want
to use it, or use mode command to disactivate it.
.t means any text format,
.x - any xdr format,
.s - staf particle table (HEPEVNT),
.m - mickey-mouse event generator.
Last modified 10 May 1999 by