Geant4_10
G4VAnnihilationCollision.cc
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26 
27 #include "globals.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 
44 {
45  theAngularDistribution=0;
46 }
47 
48 
50 {
51  if (theAngularDistribution) {
52  delete theAngularDistribution;
53  theAngularDistribution=0;
54  }
55 }
56 
57 
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  G4ParticleDefinition* OutputDefinition = const_cast<G4ParticleDefinition *>( GetOutgoingParticle(trk1,trk2) );
69 
70  // Unit vector of three-momentum
71 
72  G4ThreeVector pFinal(0.0, 0.0, 0.0);
73  G4double eFinal = sqrtS;
74 
75  G4LorentzVector p4Final(pFinal, eFinal);
76 
77  // Lorentz transformation
78  G4LorentzRotation toLabFrame(p.boostVector());
79  p4Final *= toLabFrame;
80 
81  G4KineticTrack* final = new G4KineticTrack(OutputDefinition, 0.0,
82  trk1.GetPosition(), p4Final);
83 
84  G4KineticTrackVector* finalTracks = new G4KineticTrackVector;
85 
86  finalTracks->push_back(final);
87 
88  return finalTracks;
89 }
90 
Hep3Vector boostVector() const
virtual G4KineticTrackVector * FinalState(const G4KineticTrack &trk1, const G4KineticTrack &trk2) const
virtual const G4ParticleDefinition * GetOutgoingParticle(const G4KineticTrack &trk1, const G4KineticTrack &trk2) const =0
const G4ThreeVector & GetPosition() const
const char * p
Definition: xmltok.h:285
double G4double
Definition: G4Types.hh:76
const G4LorentzVector & Get4Momentum() const