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README
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CRMC v1.8.0 Last modifications 2020/12/01
CRMC v2.0.0 Last modifications 2021/08/23
**********************************************************
The Program "crmc"
......@@ -16,7 +16,7 @@ Version with extended arrays for heavy ion collisions.
Authors
**********************************************************
C++ interface : Colin Baus (colin.baus@kit.edu)
C++ interface : Colin Baus
Ralf Ulrich (ralf.ulrich@kit.edu)
Fortran interface : Tanguy Pierog (tanguy.pierog@kit.edu)
......@@ -41,37 +41,52 @@ Reference : C. Baus, T. Pierog and R. Ulrich.
* Post LHC :
EPOS LHC (-m0) : T. Pierog et al.
EPOS LHC (-m 0) : T. Pierog et al.
Phys.Rev. C92 (2015) 034906
QGSJETII-04 (-m7) : S.Ostapchenko,
QGSJETII-04 (-m 7) : S.Ostapchenko,
Phys.Rev. D83 (2011) 014018
SIBYLL2.3d (-m6) : F. Riehn, R. Engel, A. Fedynitch, T.K. Gaisser, and T. Stanev,
hep-ph: 1912.03300
SIBYLL2.3d (-m 6) : F. Riehn, R. Engel, A. Fedynitch, T.K. Gaisser, and T. Stanev,
hep-ph: 1912.03300
and
E.-J. Ahn, R. Engel, T.K. Gaisser, P. Lipari, and T. Stanev,
Phys.Rev. D80 (2009) 094003
E.-J. Ahn, R. Engel, T.K. Gaisser, P. Lipari, and T. Stanev,
Phys.Rev. D80 (2009) 094003
DPMJETIII 2017-1 : Fedynitch at al.
DPMJETIII 2017-1 (-m 12) : Fedynitch at al.
DPMJETIII 2019-1 : Fedynitch at al.
DPMJETIII 2019-1 (-m 12) : Fedynitch at al.
* Pre LHC :
DPMJET 3.06 : 10.1103/PhysRevC.77.014904 (not linked any more)
DPMJET 3.06 (-m 12) : 10.1103/PhysRevC.77.014904 (not linked any more)
EPOS 1.99 (-m1) : K. Werner, F.M. Liu and T. Pierog,
Phys.Rev. C74 (2006) 044902
EPOS 1.99 (-m 1) : K. Werner, F.M. Liu and T. Pierog,
Phys.Rev. C74 (2006) 044902
and
T. Pierog and K. Werner,
Nucl.Phys.Proc.Suppl. 196 (2009) 102-105
T. Pierog and K. Werner,
Nucl.Phys.Proc.Suppl. 196 (2009) 102-105
QGSJET01 (-m2) : N.N. Kalmykov, S. Ostapchenko, and A.I. Pavlov,
Nucl.Phys. B (Proc. Suppl.) 52B (1997) 17
QGSJET01 (-m 2) : N.N. Kalmykov, S. Ostapchenko, and A.I. Pavlov,
Nucl.Phys. B (Proc. Suppl.) 52B (1997) 17
QGSJETII-03 (-m11) : S. Ostapchenko,
Nucl.Phys.Proc.Suppl. 151 (2006) 143
QGSJETII-03 (-m 11) : S. Ostapchenko,
Nucl.Phys.Proc.Suppl. 151 (2006) 143
* Other models :
PHOJET 1.12 (-m 8) : R. Engel, J. Ranft and S. Roesler,
Phys. Rev. D52 (1995) 1459
and
F. W. Bopp, R. Engel and J. Ranft
arXiv:hep-ph/9803437.
PYTHIA 6.4.28 (-m 4) : T. Sjostrand, S. Mrenna and P. Skands,
JHEP 0605 (2006) 026
HIJING 1.38 (-m 5) : obsolete (please use a more modern version like HIJING++)
GHEISHA (-m 3) : obsolete
**********************************************************
Installation
......@@ -176,16 +191,16 @@ The environment variable $CRMC_OUT can be set to define the path the path of the
otherwise $PWD is used as default path.
**Example to generate 100 7 TeV pp collisions with EPOS LHC:
bin/crmc -o hepmc -S7000 -n100 -m0
bin/crmc -o hepmc -S 7000 -n 100 -m 0
**Example to generate 100 1.38 ATeV PbPb collisions with EPOS 1.99:
bin/crmc -o hepmc -p1380 -P-1380 -n100 -i208 -I208 -m1
bin/crmc -o hepmc -p 1380 -P -1380 -n 100 -i 208 -I 208 -m 1
**Example to generate 100 5.02 ATeV pPb collisions with QGSJetII-04:
bin/crmc -o hepmc -p4000 -P-1577 -n100 -m7 -i2212 -I822080
bin/crmc -o hepmc -p 4000 -P -1577 -n 100 -m 7 -i 2212 -I 822080
**Example to test Sibyll2.3
bin/crmc -T -m6
**Example to test Sibyll2.3d
bin/crmc -T -m 6
** On Rivet output
if you select Rivet as output CRMC will produce a yoda file with analysis output for you. Of course,
......@@ -203,7 +218,7 @@ In this file the 3 first commented options are valid for EPOS 1.99 and EPOS LHC
- By defaults EPOS models use a simplified treatment of QGP in events where the energy density is high enough (including in pp). If you
uncomment the line "!switch fusion off" this will be disable and running time will be shorter (but data description will be worth since
the physics model will be incomplete). In that mode EPOS is comparable to PYTHIA model (no final state interaction).
the physics model will be incomplete). In that mode EPOS is comparable to PYTHIA model without color reconnection (no final state interaction).
- By default only the final particles are recorded in the output file like for other cosmic ray models.
Uncommenting "!set istmax 1" allows the user to have the full chain of mother/daughter from the beam to the final particles with EPOS models.
......@@ -230,15 +245,14 @@ cross-section will be always correct but it takes several minutes to compute it
Note on Simulating Heavy Ion (HI) Events
******I****************************************************
QGSJET01 and SIBYLL2.3 are limited to hA collisions with A<64 (A<19) and h being a pion, a kaon or a nucleon.
QGSJET01 and SIBYLL2.3d are limited to hA collisions with A<64 (A<19) and h being a pion, a kaon or a nucleon.
Only EPOS (1.99 and LHC) and QGSJETII (03 and 04) models can run (h)AB collisions with A and B up to 208.
QGSJETII was never designed for HI collisions, so results should be interpreted with care (no final
state interactions).
QGSJETII was never designed for HI collisions, so results should be interpreted with care (no final state interactions).
EPOS 1.99 and LHC include a simplified treatment of final state interaction but doesn't include full hydro
simulations as already possible in EPOS 2. It gives a good overall description of HI data but it should not be
used to interpret QGP related observables (flow, jet quenching, etc ...) since the model is oversimplified in
simulations as already possible in EPOS 4. It gives a good overall description of HI data but it should not be
used to interpret QGP related observables (correlation, flow, jet quenching, etc ...) since the model is oversimplified in
this distribution.
* For detailed simulations of HI collisions within EPOS 2, please contact K. Werner (werner@subatech.in2p3.fr).*
* For detailed simulations of HI collisions within EPOS 4, please contact K. Werner (werner@subatech.in2p3.fr).*
Concerning the cross-section calculation in EPOS, to avoid unnecessary long time calculation needed
for HI interactions, the default type of cross-section calculation is fast and good for hA but not reliable for
......
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