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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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14 | // * regarding this software system or assume any liability for its * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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19 | // * technical work of the GEANT4 collaboration. * |
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24 | // ******************************************************************** |
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25 | // |
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26 | // $Id: G4eeToHadronsMultiModel.cc,v 1.6 2008/07/11 17:49:11 vnivanch Exp $ |
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27 | // GEANT4 tag $Name: geant4-09-02-ref-02 $ |
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28 | // |
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29 | // ------------------------------------------------------------------- |
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30 | // |
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31 | // GEANT4 Class file |
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32 | // |
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33 | // |
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34 | // File name: G4eeToHadronsMultiModel |
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35 | // |
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36 | // Author: Vladimir Ivanchenko |
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37 | // |
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38 | // Creation date: 02.08.2004 |
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39 | // |
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40 | // Modifications: |
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41 | // 08-11-04 Migration to new interface of Store/Retrieve tables (V.Ivantchenko) |
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42 | // 08-04-05 Major optimisation of internal interfaces (V.Ivantchenko) |
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43 | // |
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44 | |
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45 | // |
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46 | // ------------------------------------------------------------------- |
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47 | // |
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48 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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49 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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50 | |
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51 | #include "G4eeToHadronsMultiModel.hh" |
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52 | #include "G4eeToTwoPiModel.hh" |
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53 | #include "G4eeTo3PiModel.hh" |
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54 | #include "G4eeToPGammaModel.hh" |
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55 | #include "G4ee2KNeutralModel.hh" |
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56 | #include "G4ee2KChargedModel.hh" |
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57 | #include "G4eeCrossSections.hh" |
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58 | #include "G4Vee2hadrons.hh" |
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59 | |
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60 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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61 | |
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62 | using namespace std; |
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63 | |
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64 | G4eeToHadronsMultiModel::G4eeToHadronsMultiModel(G4int ver, const G4String& name) |
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65 | : G4VEmModel(name), |
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66 | csFactor(1.0), |
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67 | nModels(0), |
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68 | verbose(ver), |
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69 | isInitialised(false) |
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70 | {} |
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71 | |
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72 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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73 | |
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74 | G4eeToHadronsMultiModel::~G4eeToHadronsMultiModel() |
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75 | { |
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76 | G4int n = models.size(); |
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77 | if(n>0) { |
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78 | for(G4int i=0; i<n; i++) { |
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79 | delete models[i]; |
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80 | } |
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81 | } |
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82 | delete cross; |
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83 | } |
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84 | |
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85 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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86 | |
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87 | void G4eeToHadronsMultiModel::Initialise(const G4ParticleDefinition*, |
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88 | const G4DataVector&) |
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89 | { |
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90 | if(!isInitialised) { |
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91 | isInitialised = true; |
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92 | |
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93 | thKineticEnergy = DBL_MAX; |
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94 | maxKineticEnergy = 1.2*GeV; |
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95 | |
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96 | cross = new G4eeCrossSections(); |
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97 | |
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98 | G4eeToTwoPiModel* m2pi = new G4eeToTwoPiModel(cross); |
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99 | m2pi->SetHighEnergy(maxKineticEnergy); |
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100 | AddEEModel(m2pi); |
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101 | |
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102 | G4eeTo3PiModel* m3pi1 = new G4eeTo3PiModel(cross); |
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103 | m3pi1->SetHighEnergy(0.95*GeV); |
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104 | AddEEModel(m3pi1); |
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105 | |
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106 | G4eeTo3PiModel* m3pi2 = new G4eeTo3PiModel(cross); |
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107 | m3pi2->SetLowEnergy(0.95*GeV); |
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108 | m3pi2->SetHighEnergy(maxKineticEnergy); |
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109 | AddEEModel(m3pi2); |
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110 | |
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111 | G4ee2KChargedModel* m2kc = new G4ee2KChargedModel(cross); |
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112 | m2kc->SetHighEnergy(maxKineticEnergy); |
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113 | AddEEModel(m2kc); |
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114 | |
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115 | G4ee2KNeutralModel* m2kn = new G4ee2KNeutralModel(cross); |
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116 | m2kn->SetHighEnergy(maxKineticEnergy); |
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117 | AddEEModel(m2kn); |
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118 | |
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119 | G4eeToPGammaModel* mpg1 = new G4eeToPGammaModel(cross,"pi0"); |
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120 | mpg1->SetLowEnergy(0.7*GeV); |
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121 | mpg1->SetHighEnergy(maxKineticEnergy); |
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122 | AddEEModel(mpg1); |
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123 | |
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124 | G4eeToPGammaModel* mpg2 = new G4eeToPGammaModel(cross,"eta"); |
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125 | mpg2->SetLowEnergy(0.7*GeV); |
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126 | mpg2->SetHighEnergy(maxKineticEnergy); |
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127 | AddEEModel(mpg2); |
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128 | |
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129 | nModels = models.size(); |
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130 | |
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131 | if(pParticleChange) { |
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132 | fParticleChange = |
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133 | reinterpret_cast<G4ParticleChangeForGamma*>(pParticleChange); |
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134 | } else { |
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135 | fParticleChange = new G4ParticleChangeForGamma(); |
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136 | } |
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137 | } |
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138 | } |
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139 | |
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140 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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141 | |
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142 | void G4eeToHadronsMultiModel::AddEEModel(G4Vee2hadrons* mod) |
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143 | { |
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144 | G4eeToHadronsModel* model = new G4eeToHadronsModel(mod, verbose); |
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145 | model->SetLowEnergyLimit(LowEnergyLimit()); |
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146 | model->SetHighEnergyLimit(HighEnergyLimit()); |
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147 | models.push_back(model); |
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148 | G4double elow = mod->ThresholdEnergy(); |
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149 | ekinMin.push_back(elow); |
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150 | if(thKineticEnergy > elow) thKineticEnergy = elow; |
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151 | ekinMax.push_back(mod->HighEnergy()); |
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152 | ekinPeak.push_back(mod->PeakEnergy()); |
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153 | cumSum.push_back(0.0); |
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154 | } |
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155 | |
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156 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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157 | |
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158 | G4double G4eeToHadronsMultiModel::CrossSectionPerVolume( |
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159 | const G4Material* mat, |
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160 | const G4ParticleDefinition* p, |
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161 | G4double kineticEnergy, |
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162 | G4double, G4double) |
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163 | { |
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164 | return mat->GetElectronDensity()* |
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165 | ComputeCrossSectionPerElectron(p, kineticEnergy); |
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166 | } |
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167 | |
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168 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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169 | |
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170 | G4double G4eeToHadronsMultiModel::ComputeCrossSectionPerAtom( |
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171 | const G4ParticleDefinition* p, |
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172 | G4double kineticEnergy, |
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173 | G4double Z, G4double, |
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174 | G4double, G4double) |
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175 | { |
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176 | return Z*ComputeCrossSectionPerElectron(p, kineticEnergy); |
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177 | } |
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178 | |
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179 | |
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180 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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181 | |
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182 | void G4eeToHadronsMultiModel::SampleSecondaries(std::vector<G4DynamicParticle*>* newp, |
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183 | const G4MaterialCutsCouple* couple, |
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184 | const G4DynamicParticle* dp, |
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185 | G4double, G4double) |
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186 | { |
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187 | G4double kinEnergy = dp->GetKineticEnergy(); |
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188 | if (kinEnergy > thKineticEnergy) { |
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189 | G4double q = cumSum[nModels-1]*G4UniformRand(); |
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190 | for(G4int i=0; i<nModels; i++) { |
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191 | if(q <= cumSum[i]) { |
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192 | (models[i])->SampleSecondaries(newp, couple,dp); |
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193 | if(newp->size() > 0) fParticleChange->ProposeTrackStatus(fStopAndKill); |
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194 | break; |
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195 | } |
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196 | } |
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197 | } |
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198 | } |
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199 | |
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200 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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201 | |
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202 | void G4eeToHadronsMultiModel::PrintInfo() |
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203 | { |
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204 | if(verbose > 0) { |
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205 | G4double e1 = 0.5*thKineticEnergy*thKineticEnergy/electron_mass_c2 |
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206 | - 2.0*electron_mass_c2; |
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207 | G4double e2 = 0.5*maxKineticEnergy*maxKineticEnergy/electron_mass_c2 |
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208 | - 2.0*electron_mass_c2; |
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209 | G4cout << " e+ annihilation into hadrons active from " |
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210 | << e1/GeV << " GeV to " << e2/GeV << " GeV" |
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211 | << G4endl; |
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212 | } |
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213 | } |
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214 | |
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215 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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216 | |
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217 | void G4eeToHadronsMultiModel::SetCrossSecFactor(G4double fac) |
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218 | { |
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219 | if(fac > 1.0) { |
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220 | csFactor = fac; |
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221 | if(verbose > 0) |
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222 | G4cout << "### G4eeToHadronsMultiModel: The cross section for G4eeToHadronsMultiModel " |
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223 | << " is increased by the Factor= " << csFactor << G4endl; |
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224 | } |
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225 | } |
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226 | |
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227 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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