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