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: G4VPartonStringModel.cc,v 1.6 2009/10/05 12:52:48 vuzhinsk Exp $ |
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28 | // GEANT4 tag $Name: geant4-09-03-cand-01 $ |
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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 | // ---------------- G4VPartonStringModel ---------------- |
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34 | // by Gunter Folger, May 1998. |
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35 | // abstract class for all Parton String Models |
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36 | // ------------------------------------------------------------ |
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37 | // debug switch |
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38 | //#define debug_PartonStringModel |
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39 | |
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40 | |
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41 | #include "G4VPartonStringModel.hh" |
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42 | #include "G4ios.hh" |
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43 | #include "G4ShortLivedConstructor.hh" |
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44 | |
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45 | |
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46 | G4VPartonStringModel::G4VPartonStringModel() |
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47 | { |
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48 | // Make shure Shotrylived partyicles are constructed. |
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49 | G4ShortLivedConstructor ShortLived; |
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50 | ShortLived.ConstructParticle(); |
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51 | } |
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52 | |
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53 | G4VPartonStringModel::G4VPartonStringModel(const G4VPartonStringModel &) : G4VHighEnergyGenerator() |
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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 | G4VPartonStringModel::~G4VPartonStringModel() |
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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 G4VPartonStringModel & G4VPartonStringModel::operator=(const G4VPartonStringModel &) |
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64 | { |
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65 | throw G4HadronicException(__FILE__, __LINE__, "G4VPartonStringModel::operator= meant to not be accessable"); |
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66 | return *this; |
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67 | } |
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68 | |
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69 | |
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70 | int G4VPartonStringModel::operator==(const G4VPartonStringModel &) const |
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71 | { |
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72 | return 0; |
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73 | } |
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74 | |
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75 | int G4VPartonStringModel::operator!=(const G4VPartonStringModel &) const |
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76 | { |
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77 | return 1; |
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78 | } |
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79 | |
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80 | G4KineticTrackVector * G4VPartonStringModel::Scatter(const G4Nucleus &theNucleus, |
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81 | const G4DynamicParticle &aPrimary) |
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82 | { |
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83 | G4ExcitedStringVector * strings = NULL; |
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84 | |
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85 | G4DynamicParticle thePrimary=aPrimary; |
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86 | |
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87 | G4LorentzRotation toZ; |
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88 | G4LorentzVector Ptmp=thePrimary.Get4Momentum(); |
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89 | toZ.rotateZ(-1*Ptmp.phi()); |
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90 | toZ.rotateY(-1*Ptmp.theta()); |
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91 | thePrimary.Set4Momentum(toZ*Ptmp); |
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92 | G4LorentzRotation toLab(toZ.inverse()); |
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93 | |
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94 | G4int attempts = 0, maxAttempts=20; |
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95 | while ( strings == NULL ) |
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96 | { |
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97 | if (attempts++ > maxAttempts ) |
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98 | { |
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99 | throw G4HadronicException(__FILE__, __LINE__, "G4VPartonStringModel::Scatter(): fails to generate strings"); |
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100 | } |
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101 | theThis->Init(theNucleus,thePrimary); |
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102 | strings = GetStrings(); |
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103 | } |
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104 | |
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105 | G4KineticTrackVector * theResult = 0; |
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106 | G4double stringEnergy(0); |
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107 | |
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108 | for ( unsigned int astring=0; astring < strings->size(); astring++) |
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109 | { |
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110 | // rotate string to lab frame, models have it aligned to z |
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111 | stringEnergy += (*strings)[astring]->GetLeftParton()->Get4Momentum().t(); |
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112 | stringEnergy += (*strings)[astring]->GetRightParton()->Get4Momentum().t(); |
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113 | (*strings)[astring]->LorentzRotate(toLab); |
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114 | } |
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115 | |
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116 | #ifdef debug_PartonStringModel |
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117 | G4V3DNucleus * fancynucleus=theThis->GetWoundedNucleus(); |
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118 | |
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119 | // loop over wounded nucleus |
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120 | G4int hits(0); |
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121 | G4Nucleon * theCurrentNucleon = fancynucleus->StartLoop() ? fancynucleus->GetNextNucleon() : NULL; |
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122 | while(theCurrentNucleon != NULL) |
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123 | { |
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124 | if(theCurrentNucleon->AreYouHit()) |
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125 | { |
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126 | hits++; |
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127 | } |
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128 | theCurrentNucleon = fancynucleus->GetNextNucleon(); |
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129 | } |
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130 | |
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131 | G4cout << " strE, nucleons, inE " |
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132 | << stringEnergy << " " |
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133 | << hits << " " |
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134 | << Ptmp.e() << " " |
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135 | << stringEnergy - 939.*hits - Ptmp.e()<< G4endl; |
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136 | #endif |
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137 | |
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138 | theResult = stringFragmentationModel->FragmentStrings(strings); |
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139 | /* |
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140 | G4cout<<"Size "<<theResult->size()<<G4endl; |
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141 | for ( unsigned int i=0; i < theResult->size(); i++) |
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142 | { |
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143 | |
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144 | G4cout<<(*theResult)[i]->Get4Momentum()<<" "<<(*theResult)[i]->Get4Momentum().mag()<<G4endl;; |
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145 | } |
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146 | */ |
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147 | std::for_each(strings->begin(), strings->end(), DeleteString() ); |
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148 | delete strings; |
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149 | |
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150 | return theResult; |
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151 | } |
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152 | |
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