Content:

1. Herwig++ at RCF
2. Herwig++ Tunning
3. Generated events physics
4. MC Events QA

Herwig++ at RCF:

Herwig++ have been compiled at RCF, you can use the compiled version directly or compile your own version, the documentation for both are available at the following links.

1. Using Herwig++ at RCF
2. Compiliing Herwig++ at RCF
3. If you are interested, compiling Herwig++ on Ubuntu

Herwig++ Tunning:

1. PDF : CTEQ5L.
2. Energy : 200.0 GeV.
3. Intrinsic pT (kT) : 2.8 GeV (From Jan Kapitan study).
4. MinBias.
5. D*+/D*- and D0 are stable.
6. Only events with at least one (D*+ || D*- || D0) && |η|<1.0 are saved.
7. All charged final state (stable) particles and D0s' are saved.

#################################################
# Change protons PDF
#################################################     
create ThePEG::LHAPDF myPDFset ThePEGLHAPDF.so
set myPDFset:PDFName cteq5l.LHgrid
set myPDFset:RemnantHandler /Herwig/Partons/HadronRemnants
set /Herwig/Particles/p+:PDF myPDFset
set /Herwig/Particles/pbar-:PDF myPDFset    


################################################## 
# RHIC physics parameters (override defaults here)
##################################################
set LHCGenerator:EventHandler:LuminosityFunction:Energy 200.0 

# Intrinsic pT tune (default is 1.9GeV),pp kT= 2.8 +- 0.1 (stat) GeV/c from Jan Kapitan study
set /Herwig/Shower/Evolver:IntrinsicPtGaussian 2.8*GeV


##################################################
# Matrix Elements for hadron-hadron collisions 
# See: http://projects.hepforge.org/herwig/trac/wiki/MinBias
##################################################

# MinBias runs (Mustafa)
insert SimpleQCD:MatrixElements[0] MEMinBias

##################################################
# Cuts on the hard process. MUST be ZERO for MinBias
##################################################

set JetKtCut:MinKT 0.0*GeV
set QCDCuts:MHatMin 0.0*GeV
# Need this cut only for min bias
set QCDCuts:X1Min 0.01
set QCDCuts:X2Min 0.01

################################################
# MPIHandler, parameters for MinBias
# ##############################################
set /Herwig/UnderlyingEvent/MPIHandler:IdenticalToUE 0

#################################################
# Stable Particles
# ###############################################
set /Herwig/Particles/D0:Stable Stable
set /Herwig/Particles/D*+:Stable Stable
set /Herwig/Particles/D*-:Stable Stable

Generated events physics

Cross-Sections reported by Herwig++:

Hard inclusive cross section (mb):   0.385108
Soft inclusive cross section (mb):   78.4994
Total cross section (mb):            57.3519
Inelastic cross section (mb):        45.4441
Soft inv radius (GeV2):              0.65253
Slope of soft pt spectrum (1/GeV2):  0.342091
Average hard multiplicity:           0.00847415
Average soft multiplicity:           1.72588

 Charged Particles Multiplicity:

MC Events QA

Only events with at least one (D*+ || D*- || D0) && |η|<1.0 are saved.