Geant4 Cross Reference

Cross-Referencing   Geant4
Geant4/processes/hadronic/models/im_r_matrix/src/G4VAnnihilationCollision.cc

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 25 //
 26 
 27 #include "globals.hh"
 28 #include "G4VAnnihilationCollision.hh"
 29 #include "G4KineticTrack.hh"
 30 #include "G4VCrossSectionSource.hh"
 31 #include "G4Proton.hh"
 32 #include "G4Neutron.hh"
 33 #include "G4XNNElastic.hh"
 34 #include "G4AngularDistribution.hh"
 35 #include "G4ThreeVector.hh"
 36 #include "G4LorentzVector.hh"
 37 #include "G4LorentzRotation.hh"
 38 #include "G4KineticTrackVector.hh"
 39 #include "Randomize.hh"
 40 #include "G4PionPlus.hh"
 41 
 42 
 43 G4VAnnihilationCollision::G4VAnnihilationCollision()
 44 { 
 45   theAngularDistribution=0;
 46 }
 47 
 48 
 49 G4VAnnihilationCollision::~G4VAnnihilationCollision()
 50 {
 51   if (theAngularDistribution) {
 52     delete theAngularDistribution;
 53     theAngularDistribution=0;
 54   }
 55 }
 56 
 57 
 58 G4KineticTrackVector* G4VAnnihilationCollision::FinalState(const G4KineticTrack& trk1, 
 59                     const G4KineticTrack& trk2) const
 60 { 
 61   G4LorentzVector p = trk1.Get4Momentum() + trk2.Get4Momentum();
 62   G4double sqrtS = p.m();
 63 //  G4double s = sqrtS * sqrtS;
 64 
 65 //  G4double m1 = trk1.GetActualMass();
 66 //  G4double m2 = trk2.GetActualMass();
 67 
 68 
 69   // Unit vector of three-momentum
 70 
 71   G4ThreeVector pFinal(0.0, 0.0, 0.0);
 72   G4double eFinal = sqrtS;
 73  
 74   G4LorentzVector p4Final(pFinal, eFinal); 
 75 
 76   // Lorentz transformation
 77   G4LorentzRotation toLabFrame(p.boostVector());
 78   p4Final *= toLabFrame;
 79   
 80  const G4ParticleDefinition* OutputDefinition = GetOutgoingParticle(trk1,trk2);
 81  G4KineticTrack* final = new G4KineticTrack(OutputDefinition, 0.0, trk1.GetPosition(), p4Final);
 82   
 83   G4KineticTrackVector* finalTracks = new G4KineticTrackVector;
 84 
 85   finalTracks->push_back(final);
 86 
 87   return finalTracks;
 88 }
 89 
 90