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25 //
26 //
27 // -------------------------------------------------------------------
28 //
29 // GEANT4 Class header file
30 //
31 //
32 // File name: G4BetheHeitler5DModel
33 //
34 // Authors:
35 // Igor Semeniouk and Denis Bernard,
36 // LLR, Ecole polytechnique & CNRS/IN2P3, 91128 Palaiseau, France
37 //
38 // Modifications:
39 // 27-10-17 New class (IgS)
40 // 19-01-18 version that calculates the pdf in the same way as in the fortran
41 // version (Denis Bernard)
42 // 04-06-18 Performance optimization of the final state sampling (M. Novak)
43 // 10-04-19 CLHEP for boost and rotation, remove local functions (IgS)
44 // 02-09-19 Set base class to be G4PairProductionRelModel that can provide
45 // accurate sections now from threshold to very high energies
46 // including the LPM effect. (M. Novak)
47 // 14-10-19 Muon's pair genaration in SampleSecondaries
48 //
49 // Class Description:
50 //
51 // Implementation of gamma conversion to e+e- in the field of a nucleus
52 //
53
54 // -------------------------------------------------------------------
55 //
56
57 #ifndef G4BetheHeitler5DModel_h
58 #define G4BetheHeitler5DModel_h 1
59
60 #include "G4PairProductionRelModel.hh"
61
62 class G4IonTable;
63
64 class G4BetheHeitler5DModel : public G4PairProductionRelModel
65 {
66
67 public:
68
69 explicit G4BetheHeitler5DModel(const G4ParticleDefinition* p = nullptr,
70 const G4String& nam = "BetheHeitler5D");
71
72 ~G4BetheHeitler5DModel() override;
73
74 void Initialise(const G4ParticleDefinition*, const G4DataVector&) override;
75
76 void SampleSecondaries(std::vector<G4DynamicParticle*>* fvect,
77 const G4MaterialCutsCouple* couple,
78 const G4DynamicParticle* aDynamicGamma,
79 G4double, G4double) override;
80
81 inline void SetVerbose(G4int val) { fVerbose = val; }
82
83 // Only e+, e+ or mu+, mu- pairs supported
84 void SetLeptonPair(const G4ParticleDefinition* p1,
85 const G4ParticleDefinition* p2);
86
87 // hide assignment operator
88 G4BetheHeitler5DModel& operator=(const G4BetheHeitler5DModel& right) = delete;
89 G4BetheHeitler5DModel(const G4BetheHeitler5DModel&) = delete;
90
91 private:
92
93 G4double MaxDiffCrossSection(const G4double* par, G4double eZ,
94 G4double e, G4double loge) const;
95
96 inline void SetConversionMode(G4int to) { fConvMode = to; }
97
98 G4IonTable* theIonTable;
99
100 const G4ParticleDefinition* fLepton1;
101 const G4ParticleDefinition* fLepton2;
102
103 const G4ParticleDefinition* fTheMuPlus;
104 const G4ParticleDefinition* fTheMuMinus;
105
106 G4int fVerbose;
107 G4int fConversionType;
108 G4int fConvMode;
109 G4bool iraw;
110 };
111 #endif
112