g4simulation/g4decayer/G4Pythia6Decayer.hh

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0027 // $Id: G4Pythia6Decayer.hh,v 1.2 2014/10/07 03:06:54 mccumber Exp $
0028 //
0029 /// \file eventgenerator/pythia/decayer6/include/G4Pythia6Decayer.hh
0030 /// \brief Definition of the G4Pythia6Decayer class
0031 //
0032 #ifndef G4_PYTHIA6_DECAYER_H
0033 #define G4_PYTHIA6_DECAYER_H
0034
0035 #include "EDecayType.hh"
0036 #include "G4Pythia6DecayerMessenger.hh"
0037 #include "Pythia6.hh"
0038
0039 #include <Geant4/G4ThreeVector.hh>  // for G4ThreeVector
0040 #include <Geant4/G4Types.hh>        // for G4int, G4bool
0041 #include <Geant4/G4VExtDecayer.hh>
0042
0043 class G4DecayProducts;
0044 class G4DynamicParticle;
0045 class G4ParticleDefinition;
0046 class G4Track;
0047
0048 namespace CLHEP
0049 {
0050   class HepLorentzVector;
0051 }
0052
0053 /// Pythia6 decayer
0054 ///
0055 /// Implements the G4VExtDecayer abstract class using the Pythia6 interface.
0056 /// According to TPythia6Decayer class in Root:
0057 /// http://root.cern.ch/
0058 /// see http://root.cern.ch/root/License.html
0059
0060 class G4Pythia6Decayer : public G4VExtDecayer
0061 {
0062  public:
0063   G4Pythia6Decayer();
0064   virtual ~G4Pythia6Decayer();
0065
0066   virtual G4DecayProducts* ImportDecayProducts(const G4Track& track);
0067
0068   void ForceDecayType(EDecayType decayType);
0069   void SetVerboseLevel(G4int verboseLevel) { fVerboseLevel = verboseLevel; }
0070
0071  private:
0072   /// Not implemented
0073   G4Pythia6Decayer(const G4Pythia6Decayer& right);
0074   /// Not implemented
0075   G4Pythia6Decayer& operator=(const G4Pythia6Decayer& right);
0076
0077   G4ParticleDefinition*
0078   GetParticleDefinition(const Pythia6Particle* p, G4bool warn = true) const;
0079   G4DynamicParticle* CreateDynamicParticle(const Pythia6Particle* p) const;
0080   G4ThreeVector GetParticlePosition(const Pythia6Particle* particle) const;
0081   G4ThreeVector GetParticleMomentum(const Pythia6Particle* particle) const;
0082
0083   G4int CountProducts(G4int channel, G4int particle);
0084   void ForceParticleDecay(G4int particle, G4int product, G4int mult);
0085   void ForceParticleDecay(G4int particle,
0086                           G4int* products, G4int* mult, G4int npart);
0087   void ForceHadronicD();
0088   void ForceOmega();
0089   void ForceDecay(EDecayType decayType);
0090
0091   void Decay(G4int pdg, const CLHEP::HepLorentzVector& p);
0092   G4int ImportParticles(ParticleVector* particles);
0093
0094   static const EDecayType fgkDefaultDecayType;  ///< default decay type
0095
0096   G4Pythia6DecayerMessenger fMessenger;  ///< command messenger
0097   G4int fVerboseLevel;                   ///< verbose level
0098   EDecayType fDecayType;                 ///< selected decay type
0099   ParticleVector* fDecayProductsArray;   ///< array of decay products
0100 };
0101
0102 // ----------------------------------------------------------------------------
0103
0104 #endif