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25 // 25 //
>> 26 // $Id: G4eeToHadronsMultiModel.hh,v 1.5 2007/05/23 08:50:41 vnivanch Exp $
>> 27 // GEANT4 tag $Name: geant4-09-00-patch-01 $
26 // 28 //
27 // ------------------------------------------- 29 // -------------------------------------------------------------------
28 // 30 //
29 // GEANT4 Class header file 31 // GEANT4 Class header file
30 // 32 //
31 // 33 //
32 // File name: G4eeToHadronsMultiModel 34 // File name: G4eeToHadronsMultiModel
33 // 35 //
34 // Author: Vladimir Ivanchenko 36 // Author: Vladimir Ivanchenko
35 // 37 //
36 // Creation date: 18.05.2005 38 // Creation date: 18.05.2005
37 // 39 //
38 // Modifications: 40 // Modifications:
39 // 41 //
40 42
41 // 43 //
42 // Class Description: vector of e+e- -> hadron 44 // Class Description: vector of e+e- -> hadrons models
43 // 45 //
44 46
45 // ------------------------------------------- 47 // -------------------------------------------------------------------
46 // 48 //
47 49
48 #ifndef G4eeToHadronsMultiModel_h 50 #ifndef G4eeToHadronsMultiModel_h
49 #define G4eeToHadronsMultiModel_h 1 51 #define G4eeToHadronsMultiModel_h 1
50 52
51 #include "G4VEmModel.hh" 53 #include "G4VEmModel.hh"
52 #include "G4eeToHadronsModel.hh" 54 #include "G4eeToHadronsModel.hh"
53 #include "G4ParticleChangeForGamma.hh" 55 #include "G4ParticleChangeForGamma.hh"
54 #include "G4TrackStatus.hh" 56 #include "G4TrackStatus.hh"
55 #include "Randomize.hh" 57 #include "Randomize.hh"
56 #include <CLHEP/Units/SystemOfUnits.h> <<
57 #include <CLHEP/Units/PhysicalConstants.h> <<
58 #include <vector> 58 #include <vector>
59 59
60 class G4eeCrossSections; 60 class G4eeCrossSections;
61 class G4Vee2hadrons; <<
62 61
63 class G4eeToHadronsMultiModel : public G4VEmMo 62 class G4eeToHadronsMultiModel : public G4VEmModel
64 { 63 {
65 64
66 public: 65 public:
67 66
68 explicit G4eeToHadronsMultiModel(G4int ver=0 << 67 G4eeToHadronsMultiModel(G4int ver=0, const G4String& nam = "eeToHadrons");
69 const G4Str <<
70 68
71 ~G4eeToHadronsMultiModel() override; << 69 virtual ~G4eeToHadronsMultiModel();
72 70
73 void Initialise(const G4ParticleDefinition*, << 71 virtual void Initialise(const G4ParticleDefinition*, const G4DataVector&);
74 72
75 G4double CrossSectionPerVolume(const G4Mater << 73 virtual G4double CrossSectionPerVolume(const G4Material*,
76 const G4ParticleDefinition*, << 74 const G4ParticleDefinition*,
77 G4double kineticEnergy, << 75 G4double kineticEnergy,
78 G4double cutEnergy, << 76 G4double cutEnergy,
79 G4double maxEnergy) override; << 77 G4double maxEnergy);
80 << 78
81 G4double ComputeCrossSectionPerAtom( << 79 virtual G4double ComputeCrossSectionPerAtom(
82 const G4Parti << 80 const G4ParticleDefinition*,
83 G4double kine << 81 G4double kineticEnergy,
84 G4double Z, G << 82 G4double Z, G4double A,
85 G4double cutE << 83 G4double cutEnergy = 0.0,
86 G4double maxE << 84 G4double maxEnergy = DBL_MAX);
87 << 85
88 void SampleSecondaries(std::vector<G4Dynamic << 86 virtual G4double ComputeCrossSectionPerElectron(
89 const G4MaterialCutsCouple*, << 87 const G4ParticleDefinition*,
90 const G4DynamicParticle*, << 88 G4double kineticEnergy,
91 G4double tmin = 0.0, << 89 G4double cutEnergy = 0.0,
92 G4double maxEnergy = DBL_MAX) override; << 90 G4double maxEnergy = DBL_MAX);
>> 91
>> 92 virtual void SampleSecondaries(std::vector<G4DynamicParticle*>*,
>> 93 const G4MaterialCutsCouple*,
>> 94 const G4DynamicParticle*,
>> 95 G4double tmin = 0.0,
>> 96 G4double maxEnergy = DBL_MAX);
>> 97
>> 98 void PrintInfo();
93 99
94 void ModelDescription(std::ostream& outFile) <<
95 <<
96 // Set the factor to artificially increase t 100 // Set the factor to artificially increase the crossSection (default 1)
97 void SetCrossSecFactor(G4double fac); 101 void SetCrossSecFactor(G4double fac);
98 102
99 G4double ComputeCrossSectionPerElectron(cons <<
100 G4do <<
101 G4do <<
102 G4do <<
103 <<
104 // hide assignment operator <<
105 G4eeToHadronsMultiModel & operator=(const G <<
106 G4eeToHadronsMultiModel(const G4eeToHadrons <<
107 <<
108 private: 103 private:
109 104
110 void AddEEModel(G4Vee2hadrons*, const G4Data << 105 // hide assignment operator
111 << 106 G4eeToHadronsMultiModel & operator=(const G4eeToHadronsMultiModel &right);
112 //change incident e+ kinetic energy into CM << 107 G4eeToHadronsMultiModel(const G4eeToHadronsMultiModel&);
113 inline G4double LabToCM(G4double); <<
114 108
115 G4eeCrossSections* cross = nul << 109 G4eeCrossSections* cross;
116 G4ParticleChangeForGamma* fParticleCh << 110 G4ParticleChangeForGamma* fParticleChange;
117 111
118 std::vector<G4eeToHadronsModel*> models; 112 std::vector<G4eeToHadronsModel*> models;
119 113
120 std::vector<G4double> ekinMin; 114 std::vector<G4double> ekinMin;
121 std::vector<G4double> ekinPeak; 115 std::vector<G4double> ekinPeak;
122 std::vector<G4double> ekinMax; 116 std::vector<G4double> ekinMax;
123 std::vector<G4double> cumSum; 117 std::vector<G4double> cumSum;
124 118
125 G4double delta; << 119 G4double thKineticEnergy;
126 G4double thKineticEn <<
127 G4double maxKineticE 120 G4double maxKineticEnergy;
128 G4double csFactor = << 121 G4double csFactor;
129 122
130 G4int nModels = 0 << 123 G4int nModels;
131 G4int verbose; 124 G4int verbose;
132 G4bool isInitialis << 125 G4bool isInitialised;
133 }; 126 };
134 127
135 //....oooOO0OOooo........oooOO0OOooo........oo 128 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
136 129
137 //change incident e+ kinetic energy into CM to << 130 inline G4double G4eeToHadronsMultiModel::CrossSectionPerVolume(
138 inline G4double G4eeToHadronsMultiModel::LabTo << 131 const G4Material* mat,
>> 132 const G4ParticleDefinition* p,
>> 133 G4double kineticEnergy,
>> 134 G4double, G4double)
139 { 135 {
140 G4double totE_CM = 0.0; << 136 return mat->GetElectronDensity()*
141 G4double mass = CLHEP::electron_mass_c2; << 137 ComputeCrossSectionPerElectron(p, kineticEnergy);
142 G4double totE_lab = kinE_lab + mass; << 138 }
143 totE_CM = std::sqrt(2*mass*(mass+totE_lab)); << 139
>> 140 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
144 141
145 return totE_CM; << 142 inline G4double G4eeToHadronsMultiModel::ComputeCrossSectionPerAtom(
>> 143 const G4ParticleDefinition* p,
>> 144 G4double kineticEnergy,
>> 145 G4double Z, G4double,
>> 146 G4double, G4double)
>> 147 {
>> 148 return Z*ComputeCrossSectionPerElectron(p, kineticEnergy);
>> 149 }
>> 150
>> 151 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 152
>> 153 inline G4double G4eeToHadronsMultiModel::ComputeCrossSectionPerElectron(
>> 154 const G4ParticleDefinition*,
>> 155 G4double kineticEnergy,
>> 156 G4double, G4double)
>> 157 {
>> 158 G4double res = 0.0;
>> 159 if (kineticEnergy > thKineticEnergy) {
>> 160 for(G4int i=0; i<nModels; i++) {
>> 161 if(kineticEnergy >= ekinMin[i] && kineticEnergy <= ekinMax[i])
>> 162 res += (models[i])->ComputeCrossSectionPerElectron(0,kineticEnergy);
>> 163 cumSum[i] = res;
>> 164 }
>> 165 }
>> 166 return res*csFactor;
>> 167 }
>> 168
>> 169 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 170
>> 171 inline
>> 172 void G4eeToHadronsMultiModel::SampleSecondaries(std::vector<G4DynamicParticle*>* newp,
>> 173 const G4MaterialCutsCouple* couple,
>> 174 const G4DynamicParticle* dp,
>> 175 G4double, G4double)
>> 176 {
>> 177 G4double kinEnergy = dp->GetKineticEnergy();
>> 178 if (kinEnergy > thKineticEnergy) {
>> 179 G4double q = cumSum[nModels-1]*G4UniformRand();
>> 180 for(G4int i=0; i<nModels; i++) {
>> 181 if(q <= cumSum[i]) {
>> 182 (models[i])->SampleSecondaries(newp, couple,dp);
>> 183 if(newp->size() > 0) fParticleChange->ProposeTrackStatus(fStopAndKill);
>> 184 break;
>> 185 }
>> 186 }
>> 187 }
146 } 188 }
147 189
148 //....oooOO0OOooo........oooOO0OOooo........oo 190 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
149 191
150 #endif 192 #endif
151 193