1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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4 | // * * |
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5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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7 | // * conditions of the Geant4 Software License, included in the file * |
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8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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9 | // * include a list of copyright holders. * |
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10 | // * * |
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11 | // * Neither the authors of this software system, nor their employing * |
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12 | // * institutes,nor the agencies providing financial support for this * |
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13 | // * work make any representation or warranty, express or implied, * |
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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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16 | // * for the full disclaimer and the limitation of liability. * |
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17 | // * * |
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18 | // * This code implementation is the result of the scientific and * |
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19 | // * technical work of the GEANT4 collaboration. * |
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20 | // * By using, copying, modifying or distributing the software (or * |
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21 | // * any work based on the software) you agree to acknowledge its * |
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22 | // * use in resulting scientific publications, and indicate your * |
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23 | // * acceptance of all terms of the Geant4 Software license. * |
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24 | // ******************************************************************** |
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25 | // |
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26 | // |
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27 | // Created: H.-P. Wellicsh: GHAD model wrapper for the CHIPS model (1997) |
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28 | // 16.01.08 V.Ivanchenko use initialization similar to other CHIPS models |
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29 | // |
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30 | |
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31 | #include "G4ChiralInvariantPhaseSpace.hh" |
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32 | #include "G4ParticleTable.hh" |
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33 | #include "G4LorentzVector.hh" |
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34 | #include "G4DynamicParticle.hh" |
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35 | #include "G4IonTable.hh" |
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36 | #include "G4Neutron.hh" |
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37 | |
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38 | G4ChiralInvariantPhaseSpace::G4ChiralInvariantPhaseSpace() |
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39 | {} |
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40 | |
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41 | G4ChiralInvariantPhaseSpace::~G4ChiralInvariantPhaseSpace() |
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42 | {} |
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43 | |
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44 | G4HadFinalState * G4ChiralInvariantPhaseSpace::ApplyYourself( |
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45 | const G4HadProjectile& aTrack, |
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46 | G4Nucleus& aTargetNucleus, |
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47 | G4HadFinalState * aChange) |
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48 | { |
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49 | G4HadFinalState * aResult; |
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50 | if(aChange != 0) |
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51 | { |
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52 | aResult = aChange; |
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53 | } |
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54 | else |
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55 | { |
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56 | aResult = & theResult; |
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57 | aResult->Clear(); |
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58 | aResult->SetStatusChange(stopAndKill); |
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59 | } |
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60 | //projectile properties needed in constructor of quasmon |
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61 | G4LorentzVector proj4Mom; |
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62 | proj4Mom = aTrack.Get4Momentum(); |
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63 | G4int projectilePDGCode = aTrack.GetDefinition() |
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64 | ->GetPDGEncoding(); |
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65 | |
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66 | //target properties needed in constructor of quasmon |
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67 | G4int targetZ = G4int(aTargetNucleus.GetZ()+0.5); |
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68 | G4int targetA = G4int(aTargetNucleus.GetN()+0.5); |
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69 | G4int targetPDGCode = 90000000 + 1000*targetZ + (targetA-targetZ); |
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70 | // NOT NECESSARY ______________ |
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71 | G4double targetMass = G4ParticleTable::GetParticleTable()->GetIonTable() |
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72 | ->GetIonMass(targetZ, targetA); |
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73 | G4LorentzVector targ4Mom(0.,0.,0.,targetMass); |
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74 | // END OF NOT NECESSARY^^^^^^^^ |
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75 | |
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76 | // V.Ivanchenko set the same value as for other CHIPS models |
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77 | G4int nop = 152; |
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78 | //G4int nop = 164; // nuclear clusters up to A=21 |
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79 | G4double fractionOfSingleQuasiFreeNucleons = 0.4; |
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80 | G4double fractionOfPairedQuasiFreeNucleons = 0.0; |
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81 | if(targetA>27) fractionOfPairedQuasiFreeNucleons = 0.04; |
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82 | G4double clusteringCoefficient = 4.; |
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83 | G4double temperature = 180.; |
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84 | G4double halfTheStrangenessOfSee = 0.1; // = s/d = s/u |
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85 | G4double etaToEtaPrime = 0.3; |
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86 | |
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87 | // construct and fragment the quasmon |
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88 | //G4QCHIPSWorld aWorld(nop); // Create CHIPS World of nop particles |
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89 | G4QCHIPSWorld::Get()->GetParticles(nop); // Create CHIPS World of nop particles |
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90 | G4QNucleus::SetParameters(fractionOfSingleQuasiFreeNucleons, |
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91 | fractionOfPairedQuasiFreeNucleons, |
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92 | clusteringCoefficient); |
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93 | G4Quasmon::SetParameters(temperature, |
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94 | halfTheStrangenessOfSee, |
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95 | etaToEtaPrime); |
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96 | // G4QEnvironment::SetParameters(solidAngle); |
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97 | // G4cout << "Input info "<< projectilePDGCode << " " |
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98 | // << targetPDGCode <<" " |
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99 | // << 1./MeV*proj4Mom<<" " |
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100 | // << 1./MeV*targ4Mom << " " |
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101 | // << nop << G4endl; |
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102 | G4QHadronVector projHV; |
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103 | G4QHadron* iH = new G4QHadron(projectilePDGCode, 1./MeV*proj4Mom); |
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104 | projHV.push_back(iH); |
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105 | G4QEnvironment* pan= new G4QEnvironment(projHV, targetPDGCode); |
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106 | //G4Quasmon* pan= new G4Quasmon(projectilePDGCode, targetPDGCode, |
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107 | // 1./MeV*proj4Mom, 1./MeV*targ4Mom, nop); |
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108 | G4QHadronVector* output=0; |
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109 | try |
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110 | { |
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111 | output = pan->Fragment(); |
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112 | } |
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113 | catch(G4HadronicException & aR) |
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114 | { |
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115 | G4cerr << "Exception thrown passing through G4ChiralInvariantPhaseSpace "<<G4endl; |
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116 | G4cerr << " targetPDGCode = "<< targetPDGCode <<G4endl; |
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117 | G4cerr << " Dumping the information in the pojectile list"<<G4endl; |
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118 | for(size_t i=0; i< projHV.size(); i++) |
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119 | { |
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120 | G4cerr <<" Incoming 4-momentum and PDG code of "<<i<<"'th hadron: " |
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121 | <<" "<< projHV[i]->Get4Momentum()<<" "<<projHV[i]->GetPDGCode()<<G4endl; |
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122 | } |
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123 | throw; |
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124 | } |
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125 | std::for_each(projHV.begin(), projHV.end(), DeleteQHadron()); |
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126 | projHV.clear(); |
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127 | delete pan; |
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128 | |
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129 | // Fill the particle change. |
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130 | G4DynamicParticle * theSec; |
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131 | #ifdef CHIPSdebug |
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132 | G4cout << "G4ChiralInvariantPhaseSpace: NEW EVENT #ofHadrons=" |
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133 | <<output->size()<<G4endl; |
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134 | #endif |
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135 | unsigned int particle; |
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136 | for( particle = 0; particle < output->size(); particle++) |
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137 | { |
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138 | if(output->operator[](particle)->GetNFragments() != 0) |
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139 | { |
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140 | delete output->operator[](particle); |
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141 | continue; |
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142 | } |
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143 | theSec = new G4DynamicParticle; |
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144 | G4int pdgCode = output->operator[](particle)->GetPDGCode(); |
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145 | #ifdef CHIPSdebug |
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146 | G4cout << "G4ChiralInvariantPhaseSpace: h#"<<particle |
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147 | <<", PDG="<<pdgCode<<G4endl; |
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148 | #endif |
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149 | G4ParticleDefinition * theDefinition; |
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150 | // Note that I still have to take care of strange nuclei |
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151 | // For this I need the mass calculation, and a changed interface |
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152 | // for ion-tablel ==> work for Hisaya @@@@@@@ |
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153 | // Then I can sort out the pdgCode. I also need a decau process |
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154 | // for strange nuclei; may be another chips interface |
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155 | if(pdgCode>90000000) |
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156 | { |
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157 | G4int aZ = (pdgCode-90000000)/1000; |
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158 | G4int anN = pdgCode-90000000-1000*aZ; |
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159 | theDefinition = G4ParticleTable::GetParticleTable()->FindIon(aZ,anN+aZ,0,aZ); |
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160 | if(aZ == 0 && anN == 1) theDefinition = G4Neutron::Neutron(); |
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161 | } |
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162 | else |
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163 | { |
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164 | theDefinition = G4ParticleTable::GetParticleTable() |
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165 | ->FindParticle(output->operator[](particle)->GetPDGCode()); |
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166 | } |
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167 | theSec->SetDefinition(theDefinition); |
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168 | theSec->SetMomentum(output->operator[](particle)->Get4Momentum().vect()); |
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169 | aResult->AddSecondary(theSec); |
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170 | delete output->operator[](particle); |
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171 | } |
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172 | delete output; |
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173 | return aResult; |
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174 | } |
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175 | |
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