source: trunk/examples/extended/electromagnetic/TestEm6/src/PhysicsList.cc @ 1279

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// $Id: PhysicsList.cc,v 1.13 2009/05/13 17:25:33 vnivanch Exp $
// GEANT4 tag $Name: geant4-09-03-cand-01 $
//
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#include "PhysicsList.hh"
#include "PhysicsListMessenger.hh"

#include "G4ParticleDefinition.hh"
#include "G4ProcessManager.hh"
#include "G4ParticleTypes.hh"
#include "G4ParticleTable.hh"

#include "G4Proton.hh"
#include "G4AntiProton.hh"
#include "G4Neutron.hh"
#include "G4AntiNeutron.hh"
//#include "G4GenericIon.hh"

#include "G4GammaConversionToMuons.hh"

#include "G4MultipleScattering.hh"

#include "G4eIonisation.hh"
#include "G4eBremsstrahlung.hh"
#include "G4eplusAnnihilation.hh"
#include "G4AnnihiToMuPair.hh"

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

#include "G4hIonisation.hh"
#include "G4hhIonisation.hh"
#include "G4ionIonisation.hh"
#include "G4eeToHadrons.hh"

#include "G4Decay.hh"
#include "G4EmProcessOptions.hh"

#include "G4StepLimiter.hh"

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PhysicsList::PhysicsList()
: G4VUserPhysicsList()
{
  defaultCutValue = 1.*km;
  pMes = new PhysicsListMessenger(this);
  theGammaToMuPairProcess = 0;
  theAnnihiToMuPairProcess = 0;
  eehadProcess = 0;
  SetVerboseLevel(1);
}

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PhysicsList::~PhysicsList()
{
  delete pMes;
  delete theAnnihiToMuPairProcess;
  delete theGammaToMuPairProcess;
  delete eehadProcess;
}

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void PhysicsList::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.
  
  ConstructBosons();
  ConstructLeptons();
  ConstructHadrons();
}

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void PhysicsList::ConstructBosons()
{
  // pseudo-particles
  G4Geantino::GeantinoDefinition();
  G4ChargedGeantino::ChargedGeantinoDefinition();

  // gamma
  G4Gamma::GammaDefinition();
}

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void PhysicsList::ConstructLeptons()
{
  // leptons
  G4Electron::ElectronDefinition();
  G4Positron::PositronDefinition();
  G4MuonPlus::MuonPlusDefinition();
  G4MuonMinus::MuonMinusDefinition();

  G4NeutrinoE::NeutrinoEDefinition();
  G4AntiNeutrinoE::AntiNeutrinoEDefinition();
  G4NeutrinoMu::NeutrinoMuDefinition();
  G4AntiNeutrinoMu::AntiNeutrinoMuDefinition();
}
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void PhysicsList::ConstructHadrons()
{
  // mesons
  G4PionPlus::PionPlusDefinition();
  G4PionMinus::PionMinusDefinition();
  G4PionZero::PionZeroDefinition();
  G4Eta::EtaDefinition();
  G4EtaPrime::EtaPrimeDefinition();
  G4KaonPlus::KaonPlusDefinition();
  G4KaonMinus::KaonMinusDefinition();
  G4KaonZero::KaonZeroDefinition();
  G4AntiKaonZero::AntiKaonZeroDefinition();
  G4KaonZeroLong::KaonZeroLongDefinition();
  G4KaonZeroShort::KaonZeroShortDefinition();

  // baryons
  G4Proton::ProtonDefinition();
  G4AntiProton::AntiProtonDefinition();
  G4Neutron::NeutronDefinition();
  G4AntiNeutron::AntiNeutronDefinition();
}

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void PhysicsList::ConstructProcess()
{
  AddTransportation();
  ConstructEM();
  ConstructGeneral();
}

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void PhysicsList::ConstructEM()
{
  theParticleIterator->reset();
  while( (*theParticleIterator)() ){
    G4ParticleDefinition* particle = theParticleIterator->value();
    G4ProcessManager* pmanager = particle->GetProcessManager();
    G4String particleName = particle->GetParticleName();

    if (particleName == "gamma") {
      // gamma    allow  only   gamma -> mu+mu-
      theGammaToMuPairProcess=new G4GammaConversionToMuons();
      pmanager->AddDiscreteProcess(theGammaToMuPairProcess);

    } else if (particleName == "e-") {
      //electron
      pmanager->AddProcess(new G4MultipleScattering,-1, 1,1);
      pmanager->AddProcess(new G4eIonisation,       -1, 2,2);
      pmanager->AddProcess(new G4eBremsstrahlung,   -1, 3,3);
      pmanager->AddProcess(new G4StepLimiter,       -1,-1,4);      

    } else if (particleName == "e+") {
      //positron
      // to make the process of e+e- annihilation more visible,
      // do not enable the other standard processes:
      pmanager->AddProcess(new G4MultipleScattering,-1, 1,1);
      pmanager->AddProcess(new G4eIonisation,       -1, 2,2);
      pmanager->AddProcess(new G4eBremsstrahlung,   -1, 3,3);
      pmanager->AddProcess(new G4eplusAnnihilation,  0,-1,4);
      
      theAnnihiToMuPairProcess = new G4AnnihiToMuPair();
      eehadProcess             = new G4eeToHadrons();
      pmanager->AddDiscreteProcess(theAnnihiToMuPairProcess);
      pmanager->AddDiscreteProcess(eehadProcess);
      pmanager->AddDiscreteProcess(new G4StepLimiter);
       
    } else if( particleName == "mu+" ||
               particleName == "mu-"    ) {
      //muon
      pmanager->AddProcess(new G4MultipleScattering,-1, 1,1);
      pmanager->AddProcess(new G4MuIonisation,      -1, 2,2);
      pmanager->AddProcess(new G4MuBremsstrahlung,  -1, 3,3);
      pmanager->AddProcess(new G4MuPairProduction,  -1, 4,4);
      pmanager->AddProcess(new G4StepLimiter,       -1,-1,5);            
      
    } else if( particleName == "anti_proton") {
      pmanager->AddProcess(new G4MultipleScattering,-1, 1,1);
      pmanager->AddProcess(new G4hhIonisation,      -1, 2,2);
      pmanager->AddProcess(new G4StepLimiter,       -1,-1,3);       

    } else if( particleName == "GenericIon") {
      pmanager->AddProcess(new G4MultipleScattering,-1, 1,1);
      pmanager->AddProcess(new G4ionIonisation,     -1, 2,2);
      pmanager->AddProcess(new G4StepLimiter,       -1,-1,3);       
      
    } else if( particle->GetPDGCharge() != 0.0 && !particle->IsShortLived()
            && particleName != "chargedgeantino") {
      pmanager->AddProcess(new G4MultipleScattering,-1, 1,1);
      pmanager->AddProcess(new G4hIonisation,       -1, 2,2);
      pmanager->AddProcess(new G4StepLimiter,       -1,-1,3);       
    }
  }
  
  G4EmProcessOptions opt;
  opt.SetVerbose(1);
  opt.SetMinEnergy(100*eV);       
  opt.SetMaxEnergy(1000*TeV);      
  opt.SetDEDXBinning(13*7);      
  opt.SetLambdaBinning(13*7);    
}

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void PhysicsList::ConstructGeneral()
{
  // Add Decay Process
  G4Decay* theDecayProcess = new G4Decay();
  theParticleIterator->reset();
  while ((*theParticleIterator)()){
      G4ParticleDefinition* particle = theParticleIterator->value();
      G4ProcessManager* pmanager = particle->GetProcessManager();
      if (theDecayProcess->IsApplicable(*particle) && !particle->IsShortLived()) {
        pmanager ->AddProcess(theDecayProcess);
        // set ordering for PostStepDoIt and AtRestDoIt
        pmanager ->SetProcessOrdering(theDecayProcess, idxPostStep);
        pmanager ->SetProcessOrdering(theDecayProcess, idxAtRest);
      }
  }
}

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void PhysicsList::SetCuts()
{
  if (verboseLevel >0){
    G4cout << "PhysicsList::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+");

  if (verboseLevel>0) DumpCutValuesTable();
}

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void PhysicsList::SetGammaToMuPairFac(G4double fac)
{
  if(theGammaToMuPairProcess) theGammaToMuPairProcess->SetCrossSecFactor(fac);
}

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void PhysicsList::SetAnnihiToMuPairFac(G4double fac)
{
  if(theAnnihiToMuPairProcess) theAnnihiToMuPairProcess->SetCrossSecFactor(fac);
}

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void PhysicsList::SetAnnihiToHadronFac(G4double fac)
{
  if(eehadProcess) eehadProcess->SetCrossSecFactor(fac);
}

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