# based on example from Herwig++ 2.4.2 distribution: # share/Herwig++/TVT.in # Run options: cd /Herwig/Generators set LHCGenerator:NumberOfEvents 100000 set LHCGenerator:RandomNumberGenerator:Seed 0 set LHCGenerator:DebugLevel 0 set LHCGenerator:PrintEvent 1 set LHCGenerator:MaxErrors 100000 # redirect all log output to stdout set LHCGenerator:UseStdout true # do output to a HepMC file cd /Herwig/Generators insert LHCGenerator:AnalysisHandlers 0 /Herwig/Analysis/HepMCFile set /Herwig/Analysis/HepMCFile:PrintEvent 1000000 set /Herwig/Analysis/HepMCFile:Format GenEvent set /Herwig/Analysis/HepMCFile:Filename /shared/tmp/tmp.hK9SYvsTc7/generator.hepmc # set /Herwig/Analysis/HepMCFile:Units GeV_mm # Beam parameters: set LHCGenerator:EventHandler:LuminosityFunction:Energy 7000 set LHCGenerator:EventHandler:BeamA /Herwig/Particles/p+ set LHCGenerator:EventHandler:BeamB /Herwig/Particles/p+ set LHCGenerator:MaxErrors -1 # Process setup # QCD 2-2 scattering: cd /Herwig/MatrixElements insert SimpleQCD:MatrixElements[0] MEQCD2to2 # Set cuts # Use this for hard leading-jets in a certain pT window set /Herwig/Cuts/JetKtCut:MinKT 10*GeV # minimum jet pT set /Herwig/Cuts/JetKtCut:MaxKT 7000*GeV # maximum jet pT # Use this for hard leading-jets in a certain mHat window set /Herwig/Cuts/QCDCuts:MHatMin 0*GeV # minimum jet mHat set /Herwig/Cuts/QCDCuts:MHatMax 7000*GeV # maximum jet mHat # Make particles with c*tau > 10 mm stable: set /Herwig/Decays/DecayHandler:MaxLifeTime 10*mm set /Herwig/Decays/DecayHandler:LifeTimeOption Average # tune 'LHC-UE-EE-4' parameters: ------------------- #%tuneFile% # LHC-UE-EE-4 underlying-event tune (MRST LO** PDF set) # Source: Herwig++ SVN (http://herwig.hepforge.org/trac/export/7360/trunk/src/LHC-UE-EE-4.in) # More info: Herwig++ wiki (http://herwig.hepforge.org/trac/wiki/MB_UE_tunes) # Running of alpha_s cd /Herwig create Herwig::O2AlphaS O2AlphaS set Model:QCD/RunningAlphaS O2AlphaS # MPI energy extrapolation settings set /Herwig/UnderlyingEvent/MPIHandler:EnergyExtrapolation Power set /Herwig/UnderlyingEvent/MPIHandler:ReferenceScale 7000.*GeV set /Herwig/UnderlyingEvent/MPIHandler:Power 0.21 set /Herwig/UnderlyingEvent/MPIHandler:pTmin0 3.11*GeV # Energy-independent MPI parameters # Colour reconnection settings set /Herwig/Hadronization/ColourReconnector:ColourReconnection Yes set /Herwig/Hadronization/ColourReconnector:ReconnectionProbability 0.54 # Colour Disrupt settings set /Herwig/Partons/RemnantDecayer:colourDisrupt 0.80 # inverse hadron radius set /Herwig/UnderlyingEvent/MPIHandler:InvRadius 1.11 # MPI model settings set /Herwig/UnderlyingEvent/MPIHandler:softInt Yes set /Herwig/UnderlyingEvent/MPIHandler:twoComp Yes set /Herwig/UnderlyingEvent/MPIHandler:DLmode 2 # --------------------------------------------- set /Herwig/UnderlyingEvent/MPIHandler:IdenticalToUE 0 # Run generator cd /Herwig/Generators run TVT LHCGenerator