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G4CollisionComposite.hh
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25 //
26 //
27 // -------------------------------------------------------------------
28 // GEANT4 Class file
29 //
30 // For information related to this code contact:
31 //
32 // File name: G4CollisionComposite
33 //
34 //
35 // Creation date: 15 April 1999
36 //
37 // Modifications:
38 //
39 // -------------------------------------------------------------------
40 
41 #ifndef G4CollisionComposite_h
42 #define G4CollisionComposite_h
43 
44 #include "globals.hh"
45 #include "G4HadronicException.hh"
46 #include "G4VCollision.hh"
47 #include "G4CollisionVector.hh"
48 #include "G4KineticTrackVector.hh"
49 #include "G4CrossSectionBuffer.hh"
50 #include "G4Pair.hh"
51 #include "G4ParticleTable.hh"
52 #include "G4Threading.hh"
53 
54 class G4KineticTrack;
56 
58 {
59 public:
60 
62  virtual ~G4CollisionComposite();
63 
64  virtual G4double CrossSection(const G4KineticTrack& trk1,
65  const G4KineticTrack& trk2) const;
66 
67  virtual G4KineticTrackVector* FinalState(const G4KineticTrack& trk1,
68  const G4KineticTrack& trk2) const;
69 
70  virtual G4bool IsInCharge(const G4KineticTrack& trk1,
71  const G4KineticTrack& trk2) const;
72  void AddComponent(G4VCollision * aC) {components.push_back(aC);}
73 
74 public:
75  virtual const G4VCrossSectionSource* GetCrossSectionSource() const { return 0; }
76  virtual const G4VAngularDistribution* GetAngularDistribution() const { return 0; }
77 
78  virtual const G4CollisionVector* GetComponents() const { return &components;}
79  struct Register
80  {
81  template <class T> void operator()(T*, G4CollisionComposite * aC)
82  {
83  aC->AddComponent(new T());
84  }
85  };
86  struct Resolve
87  {
88 // template <class t1, int t2, int t3, int t4, int t5>
89  template <class T>
91  {
92  G4ParticleDefinition * p2, *p3, *p4, *p5;
93  G4int pdg = 0;
94  pdg = T::i1;
96  pdg = T::i2;
98  pdg = T::i3;
100  pdg = T::i4;
102  if(p2->GetPDGCharge()+p3->GetPDGCharge() != p4->GetPDGCharge()+p5->GetPDGCharge())
103  {
104  G4cerr << "charge-unbalance in collision composite"<<G4endl;
105  }
106  aC->AddComponent(new typename T::it(p2, p3, p4, p5));
107  }
108  };
109 
110 private:
111 
113 
115  void BufferCrossSection(const G4ParticleDefinition * aP, const G4ParticleDefinition * bP);
116  G4double BufferedCrossSection(const G4KineticTrack& trk1, const G4KineticTrack& trk2) const;
117 
118 private:
119 
121  std::vector<G4CrossSectionBuffer> theBuffer;
122 
123  static const G4int nPoints;
124  static const G4double theT[];
125 
126  mutable G4Mutex bufferMutex; //Protects concurrent access to theBuffer in MT
127 };
128 
129 #endif