decayer6/src/P6DExtDecayerPhysics.cc

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0025 //
0026 /// \file P6DExtDecayerPhysics.cc
0027 /// \brief Implementation of the P6DExtDecayerPhysics class
0028 ///
0029 /// \author I. Hrivnacova; IPN, Orsay
0030
0031 #include "P6DExtDecayerPhysics.hh"
0032
0033 #include "G4Pythia6Decayer.hh"
0034
0035 #include <G4Decay.hh>
0036 #include <G4ParticleDefinition.hh>
0037 #include <G4ProcessManager.hh>
0038
0039 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0040
0041 P6DExtDecayerPhysics::P6DExtDecayerPhysics(const G4String& name) : G4VPhysicsConstructor(name)
0042 {
0043   /// Standard constructor
0044 }
0045
0046 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0047
0048 P6DExtDecayerPhysics::~P6DExtDecayerPhysics()
0049 {
0050   /// Destructor
0051 }
0052
0053 //
0054 // protected methods
0055 //
0056
0057 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0058
0059 void P6DExtDecayerPhysics::ConstructParticle()
0060 {
0061   /// Nothing to be done here
0062 }
0063
0064 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0065
0066 void P6DExtDecayerPhysics::ConstructProcess()
0067 {
0068   /// Loop over all particles instantiated and add external decayer
0069   /// to all decay processes if External decayer is set
0070
0071   // Create Geant4 external decayer
0072   G4Pythia6Decayer* extDecayer = new G4Pythia6Decayer();
0073   extDecayer->SetVerboseLevel(1);
0074   // The extDecayer will be deleted in G4Decay destructor
0075
0076   G4bool isSet = false;
0077   // One G4Decay object is shared by all unstable particles (per thread).
0078   // Thus, we need to set the external decayer only once.
0079
0080   auto particleIterator = GetParticleIterator();
0081   particleIterator->reset();
0082   while ((*particleIterator)()) {
0083     if (isSet) break;
0084
0085     G4ParticleDefinition* particle = particleIterator->value();
0086     G4ProcessManager* pmanager = particle->GetProcessManager();
0087
0088     if (verboseLevel > 1) {
0089       G4cout << "Setting ext decayer for: " << particleIterator->value()->GetParticleName()
0090              << G4endl;
0091     }
0092
0093     G4ProcessVector* processVector = pmanager->GetProcessList();
0094     for (std::size_t i = 0; i < processVector->length(); i++) {
0095       G4Decay* decay = dynamic_cast<G4Decay*>((*processVector)[i]);
0096       if (decay) {
0097         decay->SetExtDecayer(extDecayer);
0098         isSet = true;
0099       }
0100     }
0101   }
0102
0103   if (verboseLevel > 0) {
0104     G4cout << "External decayer physics constructed." << G4endl;
0105   }
0106 }
0107
0108 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......