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26 // 26 //
27 // Geant4 Header : G4HadronElastic << 27 // $Id: G4HadronElastic.hh,v 1.21 2006/11/21 19:38:53 vnivanch Exp $
>> 28 // GEANT4 tag $Name: geant4-08-02-patch-01 $
28 // 29 //
29 // Author : V.Ivanchenko 29 June 2009 (redesig << 30 //
>> 31 // G4 Model: Low energy elastic scattering with 4-momentum balance
>> 32 // Derived fron G4LElastic of F.W. Jones, TRIUMF, 04-JUN-96
>> 33 // Uses G4ElasticHadrNucleusHE and G4VQCrossSection
30 // 34 //
31 // Modified: 35 // Modified:
>> 36 // 14-Dec-05 V.Ivanchenko rename the class
>> 37 // 13-Apr-06 V.Ivanchenko move to coherent_elastic
>> 38 // 25-Jul-06 V.Ivanchenko add 19 MeV low energy, below which S-wave is sampled
>> 39 // 20-Oct-06 V.Ivanchenko default ekinhigh = GeV (use HE model)
>> 40 // 16-Nov-06 V.Ivanchenko remove definition
>> 41 // 16-Nov-06 V.Ivanchenko default ekinhigh = 0.4*GeV
>> 42 // 16-Nov-06 V.Ivanchenko cleanup and rename Set methods and variables
>> 43 //
32 // 44 //
33 // Class Description 45 // Class Description
34 // Default model for elastic scattering; GHEIS << 46 // Final state production model for hadron nuclear elastic scattering;
35 // Class Description - End 47 // Class Description - End
36 48
>> 49
37 #ifndef G4HadronElastic_h 50 #ifndef G4HadronElastic_h
38 #define G4HadronElastic_h 1 51 #define G4HadronElastic_h 1
39 52
40 #include "globals.hh" 53 #include "globals.hh"
41 #include "G4HadronicInteraction.hh" 54 #include "G4HadronicInteraction.hh"
42 #include "G4HadProjectile.hh" 55 #include "G4HadProjectile.hh"
43 #include "G4Nucleus.hh" 56 #include "G4Nucleus.hh"
44 #include "G4NucleiProperties.hh" << 57
>> 58 enum G4ElasticGenerator
>> 59 {
>> 60 fLElastic = 0,
>> 61 fHElastic,
>> 62 fQElastic,
>> 63 fSWave
>> 64 };
45 65
46 class G4ParticleDefinition; 66 class G4ParticleDefinition;
>> 67 class G4VQCrossSection;
>> 68 class G4ElasticHadrNucleusHE;
47 69
48 class G4HadronElastic : public G4HadronicInter 70 class G4HadronElastic : public G4HadronicInteraction
49 { 71 {
50 public: 72 public:
51 73
52 explicit G4HadronElastic(const G4String& nam << 74 G4HadronElastic(G4double e1=0.0,G4double e2=0.0, G4double e3=0.0);
53 75
54 ~G4HadronElastic() override; << 76 virtual ~G4HadronElastic();
55 77
56 // implementation of the G4HadronicInteracti << 78 G4HadFinalState * ApplyYourself(const G4HadProjectile & aTrack,
57 G4HadFinalState* ApplyYourself(const G4HadPr << 79 G4Nucleus & targetNucleus);
58 G4Nucleus & targetNucleus) override; <<
59 80
60 // sample momentum transfer using Lab. momen << 81 G4VQCrossSection* GetCS();
61 G4double SampleInvariantT(const G4ParticleDe <<
62 G4int Z, G4int A) override; <<
63 <<
64 G4double GetSlopeCof( const G4int pdg ); <<
65 82
66 inline void SetLowestEnergyLimit(G4double va << 83 G4ElasticHadrNucleusHE* GetHElastic();
67 84
68 inline G4double LowestEnergyLimit() const; << 85 void SetPlabLowLimit(G4double value);
69 86
70 inline G4double ComputeMomentumCMS(const G4P << 87 void SetHEModelLowLimit(G4double value);
71 G4double plab, G4int Z, G4int A); <<
72 <<
73 void ModelDescription(std::ostream&) const o <<
74 88
75 protected: << 89 void SetQModelLowLimit(G4double value);
76 90
77 G4double pLocalTmax; << 91 void SetLowestEnergyLimit(G4double value);
78 G4int secID; // Creator model ID for the re << 92
>> 93 void SetRecoilKinEnergyLimit(G4double value);
>> 94
>> 95 G4double SampleT(G4double p, G4double m1, G4double m2, G4double A);
79 96
80 private: 97 private:
81 98
>> 99 G4int Rtmi(G4double* x, G4double xli, G4double xri, G4double eps,
>> 100 G4int iend,
>> 101 G4double aa, G4double bb, G4double cc, G4double dd,
>> 102 G4double rr);
>> 103
>> 104 G4double Fctcos(G4double t,
>> 105 G4double aa, G4double bb, G4double cc, G4double dd,
>> 106 G4double rr);
>> 107
>> 108 void Defs1(G4double p, G4double px, G4double py, G4double pz,
>> 109 G4double pxinc, G4double pyinc, G4double pzinc,
>> 110 G4double* pxnew, G4double* pynew, G4double* pznew);
>> 111
>> 112 G4VQCrossSection* qCManager;
>> 113 G4ElasticHadrNucleusHE* hElastic;
>> 114
82 G4ParticleDefinition* theProton; 115 G4ParticleDefinition* theProton;
83 G4ParticleDefinition* theNeutron; 116 G4ParticleDefinition* theNeutron;
84 G4ParticleDefinition* theDeuteron; 117 G4ParticleDefinition* theDeuteron;
85 G4ParticleDefinition* theAlpha; 118 G4ParticleDefinition* theAlpha;
>> 119 const G4ParticleDefinition* thePionPlus;
>> 120 const G4ParticleDefinition* thePionMinus;
86 121
87 G4double lowestEnergyLimit; << 122 G4double lowEnergyRecoilLimit;
88 G4int nwarn; << 123 G4double lowEnergyLimitHE;
>> 124 G4double lowEnergyLimitQ;
>> 125 G4double lowestEnergyLimit;
>> 126 G4double plabLowLimit;
89 }; 127 };
90 128
91 inline void G4HadronElastic::SetLowestEnergyLi << 129 inline void G4HadronElastic::SetRecoilKinEnergyLimit(G4double value)
92 { 130 {
93 lowestEnergyLimit = value; << 131 lowEnergyRecoilLimit = value;
>> 132 }
>> 133
>> 134 inline void G4HadronElastic::SetPlabLowLimit(G4double value)
>> 135 {
>> 136 plabLowLimit = value;
>> 137 }
>> 138
>> 139 inline void G4HadronElastic::SetHEModelLowLimit(G4double value)
>> 140 {
>> 141 lowEnergyLimitHE = value;
94 } 142 }
95 143
96 inline G4double G4HadronElastic::LowestEnergyL << 144 inline void G4HadronElastic::SetQModelLowLimit(G4double value)
97 { 145 {
98 return lowestEnergyLimit; << 146 lowEnergyLimitQ = value;
99 } 147 }
100 148
101 inline G4double << 149 inline void G4HadronElastic::SetLowestEnergyLimit(G4double value)
102 G4HadronElastic::ComputeMomentumCMS(const G4Pa << 150 {
103 G4double plab, G4int Z, G4int A) << 151 lowestEnergyLimit = value;
104 { <<
105 G4double m1 = p->GetPDGMass(); <<
106 G4double m12= m1*m1; <<
107 G4double mass2 = G4NucleiProperties::GetNucl <<
108 return plab*mass2/std::sqrt(m12 + mass2*mass <<
109 } 152 }
110 153
111 #endif 154 #endif
112 155