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 | // $Id: G4FTFParticipants.cc,v 1.9 2008/06/13 12:49:23 vuzhinsk Exp $ |
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28 | // GEANT4 tag $Name: geant4-09-02 $ |
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29 | // |
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30 | // ------------------------------------------------------------ |
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31 | // GEANT 4 class implementation file |
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32 | // |
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33 | // ---------------- G4FTFParticipants---------------- |
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34 | // by Gunter Folger, June 1998. |
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35 | // class finding colliding particles in FTFPartonStringModel |
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36 | // Changed in a part by V. Uzhinsky in oder to put in correcpondence |
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37 | // with original FRITIOF mode. November - December 2006. |
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38 | // ------------------------------------------------------------ |
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39 | |
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40 | #include "G4FTFParameters.hh" // Uzhi 29.03.08 |
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41 | #include "G4FTFParticipants.hh" |
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42 | #include "G4DiffractiveSplitableHadron.hh" |
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43 | #include "G4VSplitableHadron.hh" |
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44 | #include "Randomize.hh" |
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45 | #include <utility> // Uzhi 29.03.08 |
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46 | |
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47 | // Class G4FTFParticipants |
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48 | |
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49 | G4FTFParticipants::G4FTFParticipants() |
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50 | { |
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51 | } |
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52 | |
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53 | G4FTFParticipants::G4FTFParticipants(const G4FTFParticipants &): G4VParticipants() |
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54 | { |
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55 | } |
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56 | |
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57 | |
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58 | G4FTFParticipants::~G4FTFParticipants() |
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59 | { |
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60 | } |
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61 | |
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62 | |
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63 | //const G4FTFParticipants & G4FTFParticipants::operator=(const G4FTFParticipants &right) |
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64 | //{} |
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65 | |
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66 | |
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67 | //int G4FTFParticipants::operator==(const G4FTFParticipants &right) const |
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68 | //{} |
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69 | |
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70 | //int G4FTFParticipants::operator!=(const G4FTFParticipants &right) const |
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71 | //{} |
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72 | |
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73 | void G4FTFParticipants::GetList(const G4ReactionProduct &thePrimary, |
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74 | G4FTFParameters *theParameters) // Uzhi 29.03.08 |
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75 | { |
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76 | |
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77 | StartLoop(); // reset Loop over Interactions |
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78 | |
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79 | for(unsigned int i=0; i<theInteractions.size(); i++) delete theInteractions[i]; |
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80 | theInteractions.clear(); |
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81 | |
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82 | G4double deltaxy=2 * fermi; // Extra nuclear radius |
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83 | |
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84 | G4VSplitableHadron * primarySplitable=new G4DiffractiveSplitableHadron(thePrimary); |
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85 | |
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86 | G4double xyradius; |
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87 | xyradius =theNucleus->GetOuterRadius() + deltaxy; // Impact parameter sampling |
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88 | // radius |
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89 | G4bool nucleusNeedsShift = true; |
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90 | |
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91 | while ( theInteractions.size() == 0 ) |
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92 | { |
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93 | std::pair<G4double, G4double> theImpactParameter; |
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94 | theImpactParameter = theNucleus->ChooseImpactXandY(xyradius); |
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95 | G4double impactX = theImpactParameter.first; |
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96 | G4double impactY = theImpactParameter.second; |
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97 | |
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98 | theNucleus->StartLoop(); |
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99 | G4Nucleon * nucleon; |
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100 | //G4int InterNumber=0; // Uzhi |
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101 | //while ( (nucleon=theNucleus->GetNextNucleon())&& (InterNumber < 1) ) // Uzhi |
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102 | while ( (nucleon=theNucleus->GetNextNucleon()) ) // Uzhi |
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103 | { |
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104 | G4double impact2= sqr(impactX - nucleon->GetPosition().x()) + |
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105 | sqr(impactY - nucleon->GetPosition().y()); |
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106 | |
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107 | // if ( theParameters->GetInelasticProbability(impact2/fermi/fermi) // Uzhi 29.03.08 |
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108 | if ( theParameters->GetProbabilityOfInteraction(impact2/fermi/fermi) // Uzhi 29.03.08 |
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109 | > G4UniformRand() ) |
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110 | { |
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111 | //InterNumber++; |
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112 | if ( nucleusNeedsShift ) |
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113 | { // on the first hit, shift nucleus |
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114 | nucleusNeedsShift = false; |
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115 | theNucleus->DoTranslation(G4ThreeVector(-1*impactX,-1*impactY,0.)); |
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116 | impactX=0; |
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117 | impactY=0; |
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118 | } |
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119 | G4VSplitableHadron * targetSplitable; |
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120 | if ( (targetSplitable=nucleon->GetSplitableHadron()) == NULL ) |
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121 | { |
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122 | targetSplitable= new G4DiffractiveSplitableHadron(*nucleon); |
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123 | nucleon->Hit(targetSplitable); |
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124 | } |
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125 | G4InteractionContent * aInteraction = |
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126 | new G4InteractionContent(primarySplitable); |
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127 | aInteraction->SetTarget(targetSplitable); |
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128 | theInteractions.push_back(aInteraction); |
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129 | } |
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130 | } |
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131 | |
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132 | // G4cout << "Number of Hit nucleons " << theInteractions.size() // entries() |
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133 | // << "\t" << impactX/fermi << "\t"<<impactY/fermi |
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134 | // << "\t" << std::sqrt(sqr(impactX)+sqr(impactY))/fermi <<G4endl; |
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135 | |
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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 | |
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141 | // Implementation (private) methods |
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