P6DPhysicsList.cc

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// $Id: P6DPhysicsList.cc 78019 2013-12-02 15:52:19Z gcosmo $
// 
/// \file eventgenerator/pythia/decayer6/src/P6DPhysicsList.cc
/// \brief Implementation of the P6DPhysicsList class

#include "P6DPhysicsList.hh"

#include "G4ProcessManager.hh"

#include "G4BosonConstructor.hh"
#include "G4LeptonConstructor.hh"
#include "G4MesonConstructor.hh"
#include "G4BosonConstructor.hh"
#include "G4BaryonConstructor.hh"
#include "G4IonConstructor.hh"

#include "G4Decay.hh"
#include "G4Pythia6Decayer.hh"

#include "G4SystemOfUnits.hh"

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P6DPhysicsList::P6DPhysicsList()
 : G4VUserPhysicsList()
{
  defaultCutValue = 1.0*mm;
  SetVerboseLevel(1);
}

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P6DPhysicsList::~P6DPhysicsList()
{
}

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void P6DPhysicsList::ConstructParticle()
{
  // In this method, static member functions should be called
  // for all particles which you want to use.
  // This ensures that objects of these particle types will be
  // created in the program. 

  G4BosonConstructor  pBosonConstructor;
  pBosonConstructor.ConstructParticle();

  G4LeptonConstructor pLeptonConstructor;
  pLeptonConstructor.ConstructParticle();

  G4MesonConstructor pMesonConstructor;
  pMesonConstructor.ConstructParticle();

  G4BaryonConstructor pBaryonConstructor;
  pBaryonConstructor.ConstructParticle();

  G4IonConstructor pIonConstructor;
  pIonConstructor.ConstructParticle(); 
}

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void P6DPhysicsList::ConstructProcess()
{
  AddTransportation();
  ConstructEM();
  ConstructDecay();
}

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#include "G4ComptonScattering.hh"
#include "G4GammaConversion.hh"
#include "G4PhotoElectricEffect.hh"

#include "G4eMultipleScattering.hh"
#include "G4eIonisation.hh"
#include "G4eBremsstrahlung.hh"
#include "G4eplusAnnihilation.hh"

#include "G4MuMultipleScattering.hh"
#include "G4MuIonisation.hh"
#include "G4MuBremsstrahlung.hh"
#include "G4MuPairProduction.hh"

#include "G4hMultipleScattering.hh"
#include "G4hIonisation.hh"
#include "G4hBremsstrahlung.hh"
#include "G4hPairProduction.hh"

#include "G4ionIonisation.hh"

void P6DPhysicsList::ConstructEM()
{
  theParticleIterator->reset();
  while( (*theParticleIterator)() ){
    G4ParticleDefinition* particle = theParticleIterator->value();
    G4ProcessManager* pmanager = particle->GetProcessManager();
    G4String particleName = particle->GetParticleName();
    
    if (particleName == "gamma") {
      // gamma         
      pmanager->AddDiscreteProcess(new G4PhotoElectricEffect);
      pmanager->AddDiscreteProcess(new G4ComptonScattering);
      pmanager->AddDiscreteProcess(new G4GammaConversion);
      
    } else if (particleName == "e-") {
      //electron
      pmanager->AddProcess(new G4eMultipleScattering,-1, 1, 1);
      pmanager->AddProcess(new G4eIonisation,        -1, 2, 2);
      pmanager->AddProcess(new G4eBremsstrahlung,    -1, 3, 3);      

    } else if (particleName == "e+") {
      //positron
      pmanager->AddProcess(new G4eMultipleScattering,-1, 1, 1);
      pmanager->AddProcess(new G4eIonisation,        -1, 2, 2);
      pmanager->AddProcess(new G4eBremsstrahlung,    -1, 3, 3);
      pmanager->AddProcess(new G4eplusAnnihilation,   0,-1, 4);
    
    } else if( particleName == "mu+" || 
               particleName == "mu-"    ) {
      //muon  
      pmanager->AddProcess(new G4MuMultipleScattering,-1, 1, 1);
      pmanager->AddProcess(new G4MuIonisation,       -1, 2, 2);
      pmanager->AddProcess(new G4MuBremsstrahlung,   -1, 3, 3);
      pmanager->AddProcess(new G4MuPairProduction,   -1, 4, 4);
             
    } else if( particleName == "proton" ||
               particleName == "pi-" ||
               particleName == "pi+"    ) {
      //proton  
      pmanager->AddProcess(new G4hMultipleScattering, -1, 1, 1);
      pmanager->AddProcess(new G4hIonisation,         -1, 2, 2);
      pmanager->AddProcess(new G4hBremsstrahlung,     -1, 3, 3);
      pmanager->AddProcess(new G4hPairProduction,     -1, 4, 4);       
     
    } else if( particleName == "alpha" || 
               particleName == "He3" )     {
      //alpha 
      pmanager->AddProcess(new G4hMultipleScattering, -1, 1, 1);
      pmanager->AddProcess(new G4ionIonisation,       -1, 2, 2);
     
    } else if( particleName == "GenericIon" ) { 
      //Ions 
      pmanager->AddProcess(new G4hMultipleScattering, -1, 1, 1);
      pmanager->AddProcess(new G4ionIonisation,       -1, 2, 2);     
      
      } else if ((!particle->IsShortLived()) &&
                 (particle->GetPDGCharge() != 0.0) && 
                 (particle->GetParticleName() != "chargedgeantino")) {
      //all others charged particles except geantino
      pmanager->AddProcess(new G4hMultipleScattering,-1, 1, 1);
      pmanager->AddProcess(new G4hIonisation,        -1, 2, 2);        
    }     
  }
}

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void P6DPhysicsList::ConstructDecay()
{
  // Add Decay Process
  G4Decay* theDecayProcess = new G4Decay();

  // Create Geant4 external decayer
  G4Pythia6Decayer* extDecayer = new G4Pythia6Decayer();
  extDecayer->SetVerboseLevel(2); 
     // The extDecayer is deleted in G4Decay destructor
  theDecayProcess->SetExtDecayer(extDecayer);

  theParticleIterator->reset();
  while( (*theParticleIterator)() )
  {
    G4ParticleDefinition* particle = theParticleIterator->value();
    G4ProcessManager* pmanager = particle->GetProcessManager();
    if (theDecayProcess->IsApplicable(*particle))
    { 
      pmanager ->AddProcess(theDecayProcess);
      // set ordering for PostStepDoIt and AtRestDoIt
      pmanager ->SetProcessOrdering(theDecayProcess, idxPostStep);
      pmanager ->SetProcessOrdering(theDecayProcess, idxAtRest);
    }
  }
}

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void P6DPhysicsList::SetCuts()
{
  if (verboseLevel >0)
  {
    G4cout << "P6DPhysicsList::SetCuts:";
    G4cout << "CutLength : " << G4BestUnit(defaultCutValue,"Length") << G4endl;
  }

  // set cut values for gamma at first and for e- second and next for e+,
  // because some processes for e+/e- need cut values for gamma
  //
  SetCutValue(defaultCutValue, "gamma");
  SetCutValue(defaultCutValue, "e-");
  SetCutValue(defaultCutValue, "e+");
  SetCutValue(defaultCutValue, "proton");

  if (verboseLevel>0) DumpCutValuesTable();
}

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