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 | // $Id: G4QInelastic.hh,v 1.1 2009/11/17 10:36:54 mkossov Exp $ |
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27 | // GEANT4 tag $Name: geant4-09-03-cand-01 $ |
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28 | // |
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29 | // ---------------- G4QInelastic header ---------------- |
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30 | // by Mikhail Kossov, December 2003. |
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31 | // Header of G4QInelastic class (mu-,pi-,K-) of the CHIPS Simulation Branch in GEANT4 |
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32 | // ------------------------------------------------------------------------------- |
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33 | // This is a unique CHIPS class for the Hadron-Nuclear Inelastic Interaction Prosesses. |
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34 | // ------------------------------------------------------------------------------- |
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35 | // At present (Dec.04) only pi+/-, K+/- proton, neutron, antiproton and antineutron |
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36 | // collisions with protons are implemented, which are fundamental for the in matter |
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37 | // simulation of hadronic reactions. The interactions of the same particles with |
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38 | // nuclei are implemented only for the low energy (below 1 GeV) nucle0n-nuclear |
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39 | // reactions only. The collisions of nuclei with nuclei are planned for the near future. |
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40 | // The simulation is based on the G4QuasmonString class, which extends the CHIPS model |
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41 | // to the highest energyes, implementing the Quasmon string with the |
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42 | // String->Quasmons->Hadrons scenario of the quark-gluon string fragmentation |
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43 | // --> CHIPS is a SU(3) event generator, so it does not include reactions with the |
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44 | // heavy (c,b,t), which can be simulated only by the SU(6) QUIPS (QUark Invariant |
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45 | // Phase Space) model which is an expantion of the CHIPS.- May 2009, M.Kossov.- |
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46 | // ------------------------------------------------------------------------------- |
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47 | // Algorithms: the vacuum interactions in CHIPS are described by the quark exchange (QE) |
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48 | // process. The first step is the low energy quark exchange. If as a result of the QE one |
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49 | // or both secondary hadrons are below the pi0 threshold (roughly) they are pushed to the |
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50 | // Ground State (GS) value(s). The excited (above the pi0 production threshold) hadronic |
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51 | // state is considered as a Quasmon, which is filled in the G4QuasmonVector of the |
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52 | // G4QuasmonString class. On the second step all G4Quasmons are decayed by the |
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53 | // G4Quasmon class and fiill the G4QHadronVector output. If the exchange quark is too far |
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54 | // in the rapidity space (a parameter of the G4QuasmonString class) from any of the quarks |
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55 | // of the other hadron it creates a string with the nearest in the rapidity space quark. |
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56 | // This string is converted into a Quasmon. This forces the coalescence of the residuals |
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57 | // to create another Quasmon, while the possibility exists to create more residual |
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58 | // Quasmons instead of one - one per each target-quark+projectile-antiquark(diquark) pair. |
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59 | // This possibility is tuned by the Drell-Yan pair production process. If the target (or |
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60 | // pojectile) is nucleus, then the Quasmons are created not only in vacuum, where they |
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61 | // can be fragmented by the G4Quasmon class, but in nuclear matter of the residual target |
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62 | // (or projectile). If the Quasmons are crated in nuclear matter, they are fragmented by |
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63 | // the G4QEnvironment class with the subsequent Quark Exchange nuclear fragmentation. |
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64 | // This is the general scenario.- May 2009, Mikhail Kossov.- |
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65 | // -------------------------------------------------------------------------------- |
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66 | // **************************************************************************************** |
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67 | // *********** This HEADER is a property of the CHIPS physics package (M. Kosov) ********** |
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68 | // ******* DO NOT MAKE ANY CHANGE YOURSELF! Send proposals to Mikhail.Kossov@cern.ch ****** |
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69 | // **************************************************************************************** |
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70 | // Short description: This is a universal class for the incoherent (inelastic) |
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71 | // nuclear interactions within the framework of the CHIPS model. |
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72 | // --------------------------------------------------------------------------- |
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73 | |
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74 | #ifndef G4QInelastic_hh |
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75 | #define G4QInelastic_hh |
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76 | |
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77 | // GEANT4 Headers |
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78 | #include "globals.hh" |
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79 | #include "G4ios.hh" |
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80 | #include "Randomize.hh" |
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81 | #include "G4VDiscreteProcess.hh" |
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82 | #include "G4Track.hh" |
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83 | #include "G4Step.hh" |
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84 | #include "G4ParticleTypes.hh" |
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85 | #include "G4VParticleChange.hh" |
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86 | #include "G4ParticleDefinition.hh" |
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87 | #include "G4DynamicParticle.hh" |
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88 | #include "G4ThreeVector.hh" |
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89 | #include "G4LorentzVector.hh" |
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90 | #include "G4RandomDirection.hh" |
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91 | |
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92 | // CHIPS Headers |
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93 | #include "G4QEnvironment.hh" |
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94 | #include "G4VQCrossSection.hh" |
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95 | #include "G4QIsotope.hh" |
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96 | #include "G4QProtonNuclearCrossSection.hh" |
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97 | #include "G4QPionMinusNuclearCrossSection.hh" |
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98 | #include "G4QPionPlusNuclearCrossSection.hh" |
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99 | #include "G4QKaonPlusNuclearCrossSection.hh" |
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100 | #include "G4QKaonMinusNuclearCrossSection.hh" |
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101 | #include "G4QKaonZeroNuclearCrossSection.hh" |
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102 | #include "G4QHyperonNuclearCrossSection.hh" |
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103 | #include "G4QHyperonPlusNuclearCrossSection.hh" |
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104 | #include "G4QAntiBaryonPlusNuclearCrossSection.hh" |
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105 | #include "G4QAntiBaryonNuclearCrossSection.hh" |
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106 | #include "G4QPhotonNuclearCrossSection.hh" |
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107 | #include "G4QElectronNuclearCrossSection.hh" |
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108 | #include "G4QMuonNuclearCrossSection.hh" |
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109 | #include "G4QTauNuclearCrossSection.hh" |
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110 | #include "G4QNuMuNuclearCrossSection.hh" |
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111 | #include "G4QANuMuNuclearCrossSection.hh" |
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112 | #include "G4QNuENuclearCrossSection.hh" |
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113 | #include "G4QANuENuclearCrossSection.hh" |
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114 | #include "G4QNuNuNuclearCrossSection.hh" |
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115 | #include "G4QANuANuNuclearCrossSection.hh" |
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116 | #include "G4QNeutronNuclearCrossSection.hh" |
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117 | #include "G4QNeutronCaptureRatio.hh" |
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118 | #include "G4QIonIonCollision.hh" |
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119 | #include "G4QFragmentation.hh" |
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120 | #include "G4QuasiFreeRatios.hh" |
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121 | #include "G4QPDGToG4Particle.hh" |
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122 | |
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123 | class G4QInelastic : public G4VDiscreteProcess |
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124 | { |
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125 | public: |
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126 | |
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127 | // Constructor |
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128 | G4QInelastic(const G4String& processName ="CHIPS_Inelastic"); |
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129 | |
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130 | // Destructor |
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131 | ~G4QInelastic(); |
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132 | |
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133 | G4bool IsApplicable(const G4ParticleDefinition& particle); |
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134 | |
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135 | G4double GetMeanFreePath(const G4Track& aTrack, G4double previousStepSize, |
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136 | G4ForceCondition* condition); |
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137 | // It returns the MeanFreePath of the process for the current track : |
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138 | // (energy, material) |
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139 | // The previousStepSize and G4ForceCondition* are not used. |
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140 | // This function overloads a virtual function of the base class. |
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141 | // It is invoked by the ProcessManager of the Particle. |
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142 | |
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143 | |
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144 | G4VParticleChange* PostStepDoIt(const G4Track& aTrack, const G4Step& aStep); |
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145 | // It computes the final state of the process (at end of step), |
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146 | // returned as a ParticleChange object. |
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147 | // This function overloads a virtual function of the base class. |
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148 | // It is invoked by the ProcessManager of the Particle. |
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149 | |
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150 | // Fake void functions |
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151 | void SetPhysicsTableBining(G4double, G4double, G4int) {;} |
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152 | void BuildPhysicsTable(const G4ParticleDefinition&) {;} |
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153 | void PrintInfoDefinition() {;} |
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154 | |
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155 | // Internal Energy-Momentum Residual |
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156 | G4LorentzVector GetEnegryMomentumConservation(); |
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157 | |
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158 | // Number of neutrons in the target nucleus (primary) |
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159 | G4int GetNumberOfNeutronsInTarget(); |
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160 | |
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161 | // Static functions --------------------------------------------------------------------- |
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162 | static void SetManual(); |
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163 | static void SetStandard(); |
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164 | static void SetParameters(G4double temper=180., G4double ssin2g=.1, G4double etaetap=.3, |
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165 | G4double fN=0., G4double fD=0., G4double cP=1., G4double mR=1., |
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166 | G4int npCHIPSWorld=234, G4double solAn=.5, G4bool efFlag=false, |
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167 | G4double piTh=141.4,G4double mpi2=20000.,G4double dinum=1880.); |
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168 | static void SetPhotNucBias(G4double phnB=1.); |
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169 | static void SetWeakNucBias(G4double ccnB=1.); |
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170 | //--- End of static member functions ---------------------------------------------------- |
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171 | |
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172 | G4double GetPhotNucBias(){return photNucBias;} |
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173 | G4double GetWeakNucBias(){return weakNucBias;} |
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174 | |
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175 | private: |
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176 | |
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177 | // Hide assignment operator as private |
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178 | G4QInelastic& operator=(const G4QInelastic &right); |
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179 | |
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180 | // Copy constructor |
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181 | G4QInelastic(const G4QInelastic&); |
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182 | |
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183 | // Random direction in two dimentions pair(first=sin(phi), second=cos(phi)) |
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184 | std::pair<G4double,G4double> Random2DDirection(); |
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185 | |
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186 | // BODY |
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187 | // Static Parameters -------------------------------------------------------------------- |
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188 | static G4bool manualFlag; // If false then standard parameters are used |
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189 | static G4int nPartCWorld; // The#of particles for hadronization (limit of A of fragm.) |
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190 | // -> Parameters of the G4Quasmon class: |
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191 | static G4double Temperature; // Quasmon Temperature |
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192 | static G4double SSin2Gluons; // Percent of ssbar sea in a constituen gluon |
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193 | static G4double EtaEtaprime; // Part of eta-prime in all etas |
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194 | // -> Parameters of the G4QNucleus class: |
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195 | static G4double freeNuc; // probability of the quasi-free baryon on surface |
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196 | static G4double freeDib; // probability of the quasi-free dibaryon on surface |
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197 | static G4double clustProb; // clusterization probability in dense region |
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198 | static G4double mediRatio; // relative vacuum hadronization probability |
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199 | // -> Parameters of the G4QEnvironment class: |
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200 | static G4bool EnergyFlux; // Flag for Energy Flux use instead of Multy Quasmon |
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201 | static G4double SolidAngle; // Part of Solid Angle to capture secondaries(@@A-dep) |
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202 | static G4double PiPrThresh; // Pion Production Threshold for gammas |
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203 | static G4double M2ShiftVir; // Shift for M2=-Q2=m_pi^2 of the virtual gamma |
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204 | static G4double DiNuclMass; // Double Nucleon Mass for virtual normalization |
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205 | // -> Biasing parameters: |
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206 | static G4double photNucBias; // Biasing parameter for photo-($e,mu,tau)Nuclear reactions |
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207 | static G4double weakNucBias; // Biasing parameter for Charged Currents (nu,mu) reactions |
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208 | //--------------------------------- End of static parameters --------------------------- |
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209 | // Working parameters |
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210 | G4VQCrossSection* theCS; |
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211 | G4LorentzVector EnMomConservation; // Residual of Energy/Momentum Cons. |
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212 | G4int nOfNeutrons; // #of neutrons in the target nucleus |
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213 | |
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214 | // Modifires for the reaction |
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215 | G4double Time; // Time shift of the capture reaction |
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216 | G4double EnergyDeposition; // Energy deposited in the reaction |
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217 | static std::vector <G4int> ElementZ; // Z of the element(i) in theLastCalc |
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218 | static std::vector <G4double> ElProbInMat; // SumProbabilityElements in Material |
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219 | static std::vector <std::vector<G4int>*> ElIsoN; // N of isotope(j) of Element(i) |
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220 | static std::vector <std::vector<G4double>*> IsoProbInEl;// SumProbabIsotopes in Element i |
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221 | }; |
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222 | #endif |
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