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26 // 26 //
27 // Geant4 Header : G4HadronElastic 27 // Geant4 Header : G4HadronElastic
28 // 28 //
29 // Author : V.Ivanchenko 29 June 2009 (redesig 29 // Author : V.Ivanchenko 29 June 2009 (redesign old elastic model)
30 // 30 //
31 // Modified: 31 // Modified:
32 // 32 //
33 // Class Description 33 // Class Description
34 // Default model for elastic scattering; GHEIS 34 // Default model for elastic scattering; GHEISHA algorithm is used
35 // Class Description - End 35 // Class Description - End
36 36
37 #ifndef G4HadronElastic_h 37 #ifndef G4HadronElastic_h
38 #define G4HadronElastic_h 1 38 #define G4HadronElastic_h 1
39 39
40 #include "globals.hh" 40 #include "globals.hh"
41 #include "G4HadronicInteraction.hh" 41 #include "G4HadronicInteraction.hh"
42 #include "G4HadProjectile.hh" 42 #include "G4HadProjectile.hh"
43 #include "G4Nucleus.hh" 43 #include "G4Nucleus.hh"
44 #include "G4NucleiProperties.hh" 44 #include "G4NucleiProperties.hh"
45 45
46 class G4ParticleDefinition; 46 class G4ParticleDefinition;
47 47
48 class G4HadronElastic : public G4HadronicInter 48 class G4HadronElastic : public G4HadronicInteraction
49 { 49 {
50 public: 50 public:
51 51
52 explicit G4HadronElastic(const G4String& nam 52 explicit G4HadronElastic(const G4String& name = "hElasticLHEP");
53 53
54 ~G4HadronElastic() override; 54 ~G4HadronElastic() override;
55 55
56 // implementation of the G4HadronicInteracti 56 // implementation of the G4HadronicInteraction interface
57 G4HadFinalState* ApplyYourself(const G4HadPr 57 G4HadFinalState* ApplyYourself(const G4HadProjectile & aTrack,
58 G4Nucleus & targetNucleus) override; 58 G4Nucleus & targetNucleus) override;
59 59
60 // sample momentum transfer using Lab. momen 60 // sample momentum transfer using Lab. momentum
61 G4double SampleInvariantT(const G4ParticleDe 61 G4double SampleInvariantT(const G4ParticleDefinition* p, G4double plab,
62 G4int Z, G4int A) override; 62 G4int Z, G4int A) override;
63 63
64 G4double GetSlopeCof( const G4int pdg ); 64 G4double GetSlopeCof( const G4int pdg );
65 65
66 inline void SetLowestEnergyLimit(G4double va 66 inline void SetLowestEnergyLimit(G4double value);
67 67
68 inline G4double LowestEnergyLimit() const; 68 inline G4double LowestEnergyLimit() const;
69 69
70 inline G4double ComputeMomentumCMS(const G4P 70 inline G4double ComputeMomentumCMS(const G4ParticleDefinition* p,
71 G4double plab, G4int Z, G4int A); 71 G4double plab, G4int Z, G4int A);
72 72
73 void ModelDescription(std::ostream&) const o 73 void ModelDescription(std::ostream&) const override;
74 74
75 protected: 75 protected:
76 76
77 G4double pLocalTmax; 77 G4double pLocalTmax;
78 G4int secID; // Creator model ID for the re 78 G4int secID; // Creator model ID for the recoil
79 79
80 private: 80 private:
81 81
82 G4ParticleDefinition* theProton; 82 G4ParticleDefinition* theProton;
83 G4ParticleDefinition* theNeutron; 83 G4ParticleDefinition* theNeutron;
84 G4ParticleDefinition* theDeuteron; 84 G4ParticleDefinition* theDeuteron;
85 G4ParticleDefinition* theAlpha; 85 G4ParticleDefinition* theAlpha;
86 86
87 G4double lowestEnergyLimit; 87 G4double lowestEnergyLimit;
88 G4int nwarn; 88 G4int nwarn;
89 }; 89 };
90 90
91 inline void G4HadronElastic::SetLowestEnergyLi 91 inline void G4HadronElastic::SetLowestEnergyLimit(G4double value)
92 { 92 {
93 lowestEnergyLimit = value; 93 lowestEnergyLimit = value;
94 } 94 }
95 95
96 inline G4double G4HadronElastic::LowestEnergyL 96 inline G4double G4HadronElastic::LowestEnergyLimit() const
97 { 97 {
98 return lowestEnergyLimit; 98 return lowestEnergyLimit;
99 } 99 }
100 100
101 inline G4double 101 inline G4double
102 G4HadronElastic::ComputeMomentumCMS(const G4Pa 102 G4HadronElastic::ComputeMomentumCMS(const G4ParticleDefinition* p,
103 G4double plab, G4int Z, G4int A) 103 G4double plab, G4int Z, G4int A)
104 { 104 {
105 G4double m1 = p->GetPDGMass(); 105 G4double m1 = p->GetPDGMass();
106 G4double m12= m1*m1; 106 G4double m12= m1*m1;
107 G4double mass2 = G4NucleiProperties::GetNucl 107 G4double mass2 = G4NucleiProperties::GetNuclearMass(A, Z);
108 return plab*mass2/std::sqrt(m12 + mass2*mass 108 return plab*mass2/std::sqrt(m12 + mass2*mass2 + 2.*mass2*std::sqrt(m12 + plab*plab));
109 } 109 }
110 110
111 #endif 111 #endif
112 112