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 | // !!! Was used in QBBC PL, NOW it is not. Must be absolete !!! |
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27 | // ============================================================ |
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28 | |
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29 | //#define debug |
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30 | //#define pdebug |
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31 | |
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32 | #include "G4StringChipsInterface.hh" |
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33 | #include "globals.hh" |
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34 | #include <utility> |
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35 | #include <list> |
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36 | #include "G4KineticTrackVector.hh" |
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37 | #include "G4Nucleon.hh" |
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38 | #include "G4LorentzRotation.hh" |
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39 | |
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40 | G4StringChipsInterface::G4StringChipsInterface() |
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41 | { |
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42 | #ifdef CHIPSdebug |
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43 | G4cout << "Please enter the energy loss per fermi in GeV"<<G4endl; |
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44 | G4cin >> theEnergyLossPerFermi; |
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45 | #endif |
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46 | #ifdef debug |
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47 | G4cout<<"G4StringChipsInterface::Constructor is called"<<G4endl; |
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48 | #endif |
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49 | theEnergyLossPerFermi = 0.5*GeV; |
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50 | // theEnergyLossPerFermi = 1.*GeV; |
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51 | } |
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52 | |
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53 | G4HadFinalState* G4StringChipsInterface:: |
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54 | ApplyYourself(const G4HadProjectile& aTrack, G4Nucleus& theNucleus) |
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55 | { |
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56 | #ifdef debug |
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57 | G4cout<<"G4StringChipsInterface::ApplyYourself is called"<<G4endl; |
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58 | #endif |
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59 | return theModel.ApplyYourself(aTrack, theNucleus); |
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60 | } |
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61 | |
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62 | G4ReactionProductVector* G4StringChipsInterface:: |
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63 | Propagate(G4KineticTrackVector* theSecondaries, G4V3DNucleus* theNucleus) |
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64 | { |
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65 | #ifdef debug |
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66 | G4cout<<"G4StringChipsInterface::Propagate is called"<<G4endl; |
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67 | #endif |
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68 | // Protection for non physical conditions |
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69 | |
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70 | if(theSecondaries->size() == 1) |
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71 | throw G4HadronicException(__FILE__, __LINE__, "G4StringChipsInterface: Only one particle from String models!"); |
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72 | |
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73 | // Calculate the mean energy lost |
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74 | std::pair<G4double, G4double> theImpact = theNucleus->RefetchImpactXandY(); |
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75 | G4double impactX = theImpact.first; |
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76 | G4double impactY = theImpact.second; |
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77 | G4double inpactPar2 = impactX*impactX + impactY*impactY; |
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78 | |
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79 | G4double radius2 = theNucleus->GetNuclearRadius(5*perCent); |
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80 | radius2 *= radius2; |
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81 | G4double pathlength = 0; |
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82 | if(radius2 - inpactPar2>0) pathlength = 2.*std::sqrt(radius2 - inpactPar2); |
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83 | G4double theEnergyLostInFragmentation = theEnergyLossPerFermi*pathlength/fermi; |
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84 | |
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85 | // now select all particles in range |
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86 | std::list<std::pair<G4double, G4KineticTrack *> > theSorted; |
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87 | std::list<std::pair<G4double, G4KineticTrack *> >::iterator current; |
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88 | for(unsigned int secondary = 0; secondary<theSecondaries->size(); secondary++) |
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89 | { |
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90 | G4LorentzVector a4Mom = theSecondaries->operator[](secondary)->Get4Momentum(); |
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91 | |
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92 | #ifdef CHIPSdebug |
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93 | G4cout <<"ALL STRING particles "<<theSecondaries->operator[](secondary)->GetDefinition()->GetPDGCharge()<<" " |
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94 | << theSecondaries->operator[](secondary)->GetDefinition()->GetPDGEncoding()<<" " |
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95 | << a4Mom <<G4endl; |
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96 | #endif |
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97 | |
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98 | G4double toSort = a4Mom.rapidity(); |
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99 | std::pair<G4double, G4KineticTrack *> it; |
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100 | it.first = toSort; |
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101 | it.second = theSecondaries->operator[](secondary); |
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102 | G4bool inserted = false; |
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103 | for(current = theSorted.begin(); current!=theSorted.end(); current++) |
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104 | { |
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105 | if((*current).first > toSort) |
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106 | { |
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107 | theSorted.insert(current, it); |
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108 | inserted = true; |
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109 | break; |
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110 | } |
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111 | } |
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112 | if(!inserted) |
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113 | { |
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114 | theSorted.push_front(it); |
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115 | } |
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116 | } |
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117 | |
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118 | G4LorentzVector proj4Mom(0.,0.,0.,0.); |
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119 | // @@ Use the G4QContent class, which is exactly (nD,nU,nS,nAD,nAU,nAS) ! |
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120 | // The G4QContent class is a basic clas in CHIPS (not PDG Code as in GEANT4), |
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121 | // so in CHIPS on can has a hadronic obgect (Quasmon) with any Quark Content. |
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122 | // As a simple extantion for the hadron (which is a special case for Hadron) |
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123 | // there is a clas G4QChipolino, which is a Quasmon, which can decay in two |
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124 | // hadrons. In future the three-hadron class can be added... |
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125 | G4int nD = 0; |
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126 | G4int nU = 0; |
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127 | G4int nS = 0; |
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128 | G4int nAD = 0; |
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129 | G4int nAU = 0; |
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130 | G4int nAS = 0; |
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131 | std::list<std::pair<G4double, G4KineticTrack *> >::iterator firstEscaping = theSorted.begin(); |
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132 | G4double runningEnergy = 0; |
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133 | G4int particleCount = 0; |
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134 | G4LorentzVector theLow = (*(theSorted.begin())).second->Get4Momentum(); |
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135 | G4LorentzVector theHigh; |
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136 | |
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137 | #ifdef CHIPSdebug |
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138 | G4cout << "CHIPS ENERGY LOST "<<theEnergyLostInFragmentation<<G4endl; |
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139 | G4cout << "sorted rapidities event start"<<G4endl; |
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140 | #endif |
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141 | |
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142 | G4ReactionProductVector * theResult = new G4ReactionProductVector; |
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143 | G4ReactionProduct * theSec; |
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144 | G4KineticTrackVector * secondaries; |
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145 | #ifdef pdebug |
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146 | G4cout<<"G4StringChipsInterface::Propagate: Absorption"<<G4endl; |
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147 | #endif |
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148 | |
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149 | // first decay and add all escaping particles. |
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150 | for(current = theSorted.begin(); current!=theSorted.end(); current++) |
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151 | { |
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152 | firstEscaping = current; |
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153 | if((*current).second->GetDefinition()->GetQuarkContent(3)!=0 || |
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154 | (*current).second->GetDefinition()->GetAntiQuarkContent(3) !=0) |
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155 | { |
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156 | G4KineticTrack * aResult = (*current).second; |
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157 | G4ParticleDefinition * pdef=aResult->GetDefinition(); |
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158 | secondaries = NULL; |
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159 | if ( pdef->GetPDGWidth() > 0 && pdef->GetPDGLifeTime() < 5E-17*s ) |
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160 | { |
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161 | secondaries = aResult->Decay(); |
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162 | } |
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163 | if ( secondaries == NULL ) |
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164 | { |
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165 | theSec = new G4ReactionProduct(aResult->GetDefinition()); |
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166 | G4LorentzVector current4Mom = aResult->Get4Momentum(); |
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167 | theSec->SetTotalEnergy(current4Mom.t()); |
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168 | theSec->SetMomentum(current4Mom.vect()); |
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169 | theResult->push_back(theSec); |
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170 | } |
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171 | else |
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172 | { |
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173 | for (unsigned int aSecondary=0; aSecondary<secondaries->size(); aSecondary++) |
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174 | { |
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175 | theSec = new G4ReactionProduct(secondaries->operator[](aSecondary)->GetDefinition()); |
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176 | G4LorentzVector current4Mom = secondaries->operator[](aSecondary)->Get4Momentum(); |
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177 | theSec->SetTotalEnergy(current4Mom.t()); |
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178 | theSec->SetMomentum(current4Mom.vect()); |
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179 | theResult->push_back(theSec); |
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180 | } |
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181 | std::for_each(secondaries->begin(), secondaries->end(), DeleteKineticTrack()); |
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182 | delete secondaries; |
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183 | } |
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184 | continue; |
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185 | } |
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186 | runningEnergy += (*current).second->Get4Momentum().t(); |
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187 | if(runningEnergy > theEnergyLostInFragmentation) break; |
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188 | |
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189 | #ifdef CHIPSdebug |
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190 | G4cout <<"ABSORBED STRING particles "<<current->second->GetDefinition()->GetPDGCharge()<<" " |
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191 | << current->second->GetDefinition()->GetPDGEncoding()<<" " |
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192 | << current->second->Get4Momentum() <<G4endl; |
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193 | #endif |
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194 | #ifdef pdebug |
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195 | G4cout<<"G4StringChipsInterface::Propagate:C=" |
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196 | <<current->second->GetDefinition()->GetPDGCharge()<<", PDG=" |
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197 | << current->second->GetDefinition()->GetPDGEncoding()<<", 4M=" |
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198 | << current->second->Get4Momentum() <<G4endl; |
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199 | #endif |
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200 | |
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201 | // projectile 4-momentum needed in constructor of quasmon |
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202 | particleCount++; |
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203 | theHigh = (*current).second->Get4Momentum(); |
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204 | proj4Mom += (*current).second->Get4Momentum(); |
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205 | |
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206 | #ifdef CHIPSdebug |
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207 | G4cout << "sorted rapidities "<<current->second->Get4Momentum().rapidity()<<G4endl; |
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208 | #endif |
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209 | |
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210 | // projectile quark contents needed for G4QContent construction (@@ ? -> G4QContent class) |
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211 | nD += (*current).second->GetDefinition()->GetQuarkContent(1); |
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212 | nU += (*current).second->GetDefinition()->GetQuarkContent(2); |
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213 | nS += (*current).second->GetDefinition()->GetQuarkContent(3); |
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214 | nAD += (*current).second->GetDefinition()->GetAntiQuarkContent(1); |
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215 | nAU += (*current).second->GetDefinition()->GetAntiQuarkContent(2); |
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216 | nAS += (*current).second->GetDefinition()->GetAntiQuarkContent(3); |
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217 | } |
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218 | // construct G4QContent |
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219 | |
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220 | #ifdef CHIPSdebug |
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221 | G4cout << "Quark content: d="<<nD<<", u="<<nU<< ", s="<< nS << G4endl; |
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222 | G4cout << "Anti-quark content: anit-d="<<nAD<<", anti-u="<<nAU<< ", anti-s="<< nAS << G4endl; |
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223 | #endif |
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224 | |
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225 | G4QContent theProjectiles(nD, nU, nS, nAD, nAU, nAS); |
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226 | |
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227 | #ifdef CHIPSdebug |
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228 | G4cout << "G4QContent is constructed"<<endl; |
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229 | #endif |
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230 | |
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231 | // target properties needed in constructor of quasmon |
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232 | // remove all hit nucleons to get Target code |
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233 | theNucleus->StartLoop(); |
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234 | G4Nucleon * aNucleon; |
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235 | G4int resA = 0; |
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236 | G4int resZ = 0; |
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237 | G4ThreeVector hitMomentum(0,0,0); |
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238 | G4double hitMass = 0; |
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239 | G4int hitCount = 0; |
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240 | while((aNucleon = theNucleus->GetNextNucleon())) |
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241 | { |
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242 | if(!aNucleon->AreYouHit()) |
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243 | { |
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244 | resA++; |
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245 | resZ+=G4int (aNucleon->GetDefinition()->GetPDGCharge()); |
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246 | } |
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247 | else |
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248 | { |
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249 | hitMomentum += aNucleon->GetMomentum().vect(); |
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250 | hitMass += aNucleon->GetMomentum().m(); |
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251 | hitCount ++; |
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252 | } |
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253 | } |
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254 | G4int targetPDGCode = 90000000 + 1000*resZ + (resA-resZ); |
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255 | G4double targetMass = theNucleus->GetMass(); |
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256 | targetMass -= hitMass; |
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257 | G4double targetEnergy = std::sqrt(hitMomentum.mag2()+targetMass*targetMass); |
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258 | // !! @@ Target should be at rest: hitMomentum=(0,0,0) @@ !! M.K. |
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259 | G4LorentzVector targ4Mom(-1.*hitMomentum, targetEnergy); |
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260 | |
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261 | // construct the quasmon |
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262 | // G4int nop = 122; // clusters up to Alpha cluster |
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263 | G4int nop = 152; // V.Ivanchenko set the same parameter as for all CHIPS models |
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264 | G4double fractionOfSingleQuasiFreeNucleons = 0.5; // It is A-dependent (C=.85, U=.40) |
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265 | G4double fractionOfPairedQuasiFreeNucleons = 0.05; |
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266 | G4double clusteringCoefficient = 5.; |
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267 | G4double temperature = 180.; |
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268 | G4double halfTheStrangenessOfSee = 0.3; // = s/d = s/u |
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269 | G4double etaToEtaPrime = 0.3; |
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270 | |
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271 | G4QNucleus::SetParameters(fractionOfSingleQuasiFreeNucleons, |
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272 | fractionOfPairedQuasiFreeNucleons, |
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273 | clusteringCoefficient); |
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274 | G4Quasmon::SetParameters(temperature, |
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275 | halfTheStrangenessOfSee, |
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276 | etaToEtaPrime); |
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277 | |
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278 | #ifdef CHIPSdebug |
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279 | G4cout << "G4QNucleus parameters "<< fractionOfSingleQuasiFreeNucleons << " " |
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280 | << fractionOfPairedQuasiFreeNucleons << " "<< clusteringCoefficient << G4endl; |
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281 | G4cout << "G4Quasmon parameters "<< temperature << " "<< halfTheStrangenessOfSee << " " |
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282 | <<etaToEtaPrime << G4endl; |
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283 | G4cout << "The Target PDG code = "<<targetPDGCode<<G4endl; |
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284 | G4cout << "The projectile momentum = "<<1./MeV*proj4Mom<<G4endl; |
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285 | G4cout << "The target momentum = "<<1./MeV*targ4Mom<<G4endl; |
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286 | #endif |
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287 | |
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288 | |
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289 | // Chips expects all in target rest frame, along z. |
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290 | // G4QCHIPSWorld aWorld(nop); // Create CHIPS World of nop particles |
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291 | G4QCHIPSWorld::Get()->GetParticles(nop); |
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292 | G4QHadronVector projHV; |
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293 | // target rest frame |
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294 | proj4Mom.boost(-1.*targ4Mom.boostVector()); |
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295 | // now go along z |
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296 | G4LorentzRotation toZ; |
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297 | toZ.rotateZ(-1*proj4Mom.phi()); |
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298 | toZ.rotateY(-1*proj4Mom.theta()); |
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299 | proj4Mom = toZ*proj4Mom; |
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300 | G4LorentzRotation toLab(toZ.inverse()); |
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301 | |
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302 | #ifdef CHIPSdebug |
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303 | G4cout << "a Boosted projectile vector along z"<<proj4Mom<<" "<<proj4Mom.mag()<<G4endl; |
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304 | #endif |
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305 | |
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306 | G4QHadron* iH = new G4QHadron(theProjectiles, 1./MeV*proj4Mom); |
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307 | projHV.push_back(iH); |
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308 | |
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309 | // now call chips with this info in place |
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310 | G4QHadronVector * output = 0; |
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311 | if (particleCount!=0) |
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312 | { |
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313 | G4QEnvironment* pan= new G4QEnvironment(projHV, targetPDGCode); |
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314 | try |
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315 | { |
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316 | output = pan->Fragment(); |
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317 | } |
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318 | catch(G4HadronicException & aR) |
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319 | { |
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320 | G4cerr << "Exception thrown passing through G4ChiralInvariantPhaseSpace "<<G4endl; |
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321 | G4cerr << " targetPDGCode = "<< targetPDGCode <<G4endl; |
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322 | G4cerr << " Dumping the information in the pojectile list"<<G4endl; |
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323 | for(size_t i=0; i< projHV.size(); i++) |
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324 | { |
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325 | G4cerr <<" Incoming 4-momentum and PDG code of "<<i<<"'th hadron: " |
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326 | <<" "<< projHV[i]->Get4Momentum()<<" "<<projHV[i]->GetPDGCode()<<G4endl; |
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327 | } |
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328 | throw; |
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329 | } |
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330 | std::for_each(projHV.begin(), projHV.end(), DeleteQHadron()); |
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331 | projHV.clear(); |
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332 | delete pan; |
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333 | } |
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334 | else output = new G4QHadronVector; |
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335 | |
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336 | // Fill the result. |
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337 | #ifdef CHIPSdebug |
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338 | G4cout << "NEXT EVENT"<<endl; |
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339 | #endif |
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340 | |
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341 | // first decay and add all escaping particles. |
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342 | for(current = firstEscaping; current!=theSorted.end(); current++) |
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343 | { |
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344 | G4KineticTrack * aResult = (*current).second; |
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345 | G4ParticleDefinition * pdef=aResult->GetDefinition(); |
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346 | secondaries = NULL; |
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347 | if ( pdef->GetPDGWidth() > 0 && pdef->GetPDGLifeTime() < 5E-17*s ) |
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348 | { |
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349 | secondaries = aResult->Decay(); |
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350 | } |
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351 | if ( secondaries == NULL ) |
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352 | { |
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353 | theSec = new G4ReactionProduct(aResult->GetDefinition()); |
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354 | G4LorentzVector current4Mom = aResult->Get4Momentum(); |
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355 | current4Mom = toLab*current4Mom; |
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356 | current4Mom.boost(targ4Mom.boostVector()); |
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357 | theSec->SetTotalEnergy(current4Mom.t()); |
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358 | theSec->SetMomentum(current4Mom.vect()); |
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359 | theResult->push_back(theSec); |
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360 | } |
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361 | else |
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362 | { |
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363 | for (unsigned int aSecondary=0; aSecondary<secondaries->size(); aSecondary++) |
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364 | { |
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365 | theSec = new G4ReactionProduct(secondaries->operator[](aSecondary)->GetDefinition()); |
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366 | G4LorentzVector current4Mom = secondaries->operator[](aSecondary)->Get4Momentum(); |
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367 | current4Mom = toLab*current4Mom; |
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368 | current4Mom.boost(targ4Mom.boostVector()); |
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369 | theSec->SetTotalEnergy(current4Mom.t()); |
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370 | theSec->SetMomentum(current4Mom.vect()); |
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371 | theResult->push_back(theSec); |
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372 | } |
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373 | std::for_each(secondaries->begin(), secondaries->end(), DeleteKineticTrack()); |
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374 | delete secondaries; |
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375 | } |
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376 | } |
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377 | std::for_each(theSecondaries->begin(), theSecondaries->end(), DeleteKineticTrack()); |
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378 | delete theSecondaries; |
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379 | |
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380 | // now add the quasmon output |
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381 | #ifdef CHIPSdebug |
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382 | G4cout << "Number of particles from string"<<theResult->size()<<G4endl; |
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383 | G4cout << "Number of particles from chips"<<output->size()<<G4endl; |
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384 | #endif |
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385 | |
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386 | for(unsigned int particle = 0; particle < output->size(); particle++) |
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387 | { |
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388 | if(output->operator[](particle)->GetNFragments() != 0) |
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389 | { |
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390 | delete output->operator[](particle); |
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391 | continue; |
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392 | } |
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393 | theSec = new G4ReactionProduct; |
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394 | G4int pdgCode = output->operator[](particle)->GetPDGCode(); |
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395 | G4ParticleDefinition * theDefinition; |
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396 | // Note that I still have to take care of strange nuclei |
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397 | // For this I need the mass calculation, and a changed interface |
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398 | // for ion-table ==> work for Hisaya @@@@@@@ |
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399 | // Then I can sort out the pdgCode. I also need a decau process |
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400 | // for strange nuclei; may be another chips interface |
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401 | if(pdgCode>90000000) |
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402 | { |
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403 | G4int aZ = (pdgCode-90000000)/1000; |
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404 | if (aZ>1000) aZ=aZ%1000; // patch for strange nuclei, to be repaired @@@@ |
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405 | G4int anN = pdgCode-90000000-1000*aZ; |
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406 | if(anN>1000) anN=anN%1000; // patch for strange nuclei, to be repaired @@@@ |
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407 | if(pdgCode==91000000) theDefinition = G4Lambda::LambdaDefinition(); |
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408 | else if(pdgCode==92000000) theDefinition = G4Lambda::LambdaDefinition(); |
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409 | else if(pdgCode==93000000) theDefinition = G4Lambda::LambdaDefinition(); |
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410 | else if(pdgCode==94000000) theDefinition = G4Lambda::LambdaDefinition(); |
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411 | else if(pdgCode==95000000) theDefinition = G4Lambda::LambdaDefinition(); |
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412 | else if(pdgCode==96000000) theDefinition = G4Lambda::LambdaDefinition(); |
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413 | else if(pdgCode==97000000) theDefinition = G4Lambda::LambdaDefinition(); |
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414 | else if(pdgCode==98000000) theDefinition = G4Lambda::LambdaDefinition(); |
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415 | else if(aZ == 0 && anN == 1) theDefinition = G4Neutron::Neutron(); |
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416 | else theDefinition = G4ParticleTable::GetParticleTable()->FindIon(aZ,anN+aZ,0,aZ); |
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417 | } |
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418 | else |
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419 | { |
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420 | theDefinition = G4ParticleTable::GetParticleTable()->FindParticle(output->operator[](particle)->GetPDGCode()); |
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421 | } |
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422 | #ifdef CHIPSdebug |
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423 | G4cout << "Particle code produced = "<< pdgCode <<G4endl; |
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424 | #endif |
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425 | |
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426 | theSec = new G4ReactionProduct(theDefinition); |
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427 | G4LorentzVector current4Mom = output->operator[](particle)->Get4Momentum(); |
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428 | current4Mom = toLab*current4Mom; |
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429 | current4Mom.boost(targ4Mom.boostVector()); |
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430 | theSec->SetTotalEnergy(current4Mom.t()); |
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431 | theSec->SetMomentum(current4Mom.vect()); |
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432 | theResult->push_back(theSec); |
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433 | |
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434 | #ifdef CHIPSdebug |
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435 | G4cout <<"CHIPS particles "<<theDefinition->GetPDGCharge()<<" " |
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436 | << theDefinition->GetPDGEncoding()<<" " |
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437 | << current4Mom <<G4endl; |
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438 | #endif |
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439 | |
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440 | delete output->operator[](particle); |
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441 | } |
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442 | delete output; |
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443 | #ifdef CHIPSdebug |
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444 | G4cout << "Number of particles"<<theResult->size()<<G4endl; |
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445 | G4cout << G4endl; |
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446 | // @@ G4QContent has even the out option! |
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447 | G4cout << "QUASMON preparation info " |
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448 | << 1./MeV*proj4Mom<<" " |
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449 | << 1./MeV*targ4Mom<<" " |
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450 | << nD<<" "<<nU<<" "<<nS<<" "<<nAD<<" "<<nAU<<" "<<nAS<<" " |
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451 | << hitCount<<" " |
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452 | << particleCount<<" " |
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453 | << theLow<<" " |
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454 | << theHigh<<" " |
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455 | << G4endl; |
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456 | #endif |
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457 | |
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458 | return theResult; |
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459 | } |
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