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Hijing setup_details Hijing Parameters Event Truth Info Saving Running HijingSet up CMT environment
Set up the work package - any one of the three packages below will work for released code,
but only first two with development
code
TestRelease:
checkout and setup TestRelease
source
$workdir/$ATLAS_BASE_RELEASE/TestRelease/TestRelease*/cmt/setup.csh
UserAnalysis:
checkout and setup UserAnalysis from PhysicsAnalysis/AnalysisCommon
source
$workdir/$ATLAS_BASE_RELEASE/PhysicsAnalysis/AnalysisCommon/UserAnalysis/UserAnalysis*/run
RunTime:
source
/afs/usatlas.bnl.gov/software/dist/$ATLAS_BASE_RELEASE/Control/AthenaRunTime/*/cmt/setup.csh
Parameters of interest:
"efrm 5500" - collision energy in GeV
"frame CMS" - collision frame
"proj A", "targ A" - indicate that nuclei will collide
"iap 207", "izp 82" - mass and atom number of the projectile nucleus
"iat 207", "izt 82" - mass and atom number of the target nucleus
"bmin 10", "bmax 15" - impact parameter range
"ihpr2 4 0" - quenching switch (turn off)
"ihpr2 18 1", "hipr1 7 5.36" - turn on b production with b-meson
mass 5.36 GeV
"ihpr2 12 0" - turn on weak and
electromagnetic decays since not all are
properly handled by Geant4
"ihpr2 21 0" - turn off particle history
since Athena interface does not handle it
correctly (or turn it on if you have B.Cole mods)
For this a new class named HijingEventParam has been introduced
It stores currently the following parameters:
np - wounded projectile nucleons
nt - wounded target nucleons
n0 - primary nucleon-nucleon collisions
n01- collisions between primary and wounded nucleons
n10 - collisions between wounded and primary nucleons
n11 - collisions between two wounded nucleons
natt - produced particles
jatt - produced jets
b - impact parameter
bphi - event plane angle
To make it work properly several
modifications in Athena packages and python scripts are needed.
For now you can copy this stuff from /usatlas/u/olszewsk/workarea (11.0.3) catalogs using
script copy_generators.sh.
Before using script modify your target release directory path in the script.
Running Single Hijing Generator Job
athena.py hijing.pbpb5500.b10-15.job.py
athena.py hijing.evparams.pbpb5500.b10-15.job.py
Running Hijing Generator Production Jobs
athena.py hijing.pbpb5500.b10-15.py seqGenOptions.py
Created: Andrzej Olszewski 19/01/2006