[819] | 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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[961] | 26 | // $Id: G4eeToHadronsMultiModel.cc,v 1.6 2008/07/11 17:49:11 vnivanch Exp $ |
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| 27 | // GEANT4 tag $Name: geant4-09-02-ref-02 $ |
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[819] | 28 | // |
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| 29 | // ------------------------------------------------------------------- |
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| 30 | // |
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| 31 | // GEANT4 Class file |
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| 32 | // |
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| 33 | // |
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| 34 | // File name: G4eeToHadronsMultiModel |
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| 35 | // |
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[961] | 36 | // Author: Vladimir Ivanchenko |
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[819] | 37 | // |
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| 38 | // Creation date: 02.08.2004 |
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| 39 | // |
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| 40 | // Modifications: |
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| 41 | // 08-11-04 Migration to new interface of Store/Retrieve tables (V.Ivantchenko) |
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| 42 | // 08-04-05 Major optimisation of internal interfaces (V.Ivantchenko) |
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| 43 | // |
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| 44 | |
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| 45 | // |
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| 46 | // ------------------------------------------------------------------- |
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| 47 | // |
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| 48 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 49 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 50 | |
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| 51 | #include "G4eeToHadronsMultiModel.hh" |
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| 52 | #include "G4eeToTwoPiModel.hh" |
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[961] | 53 | #include "G4eeTo3PiModel.hh" |
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| 54 | #include "G4eeToPGammaModel.hh" |
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| 55 | #include "G4ee2KNeutralModel.hh" |
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| 56 | #include "G4ee2KChargedModel.hh" |
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[819] | 57 | #include "G4eeCrossSections.hh" |
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[961] | 58 | #include "G4Vee2hadrons.hh" |
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[819] | 59 | |
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| 60 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 61 | |
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| 62 | using namespace std; |
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| 63 | |
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| 64 | G4eeToHadronsMultiModel::G4eeToHadronsMultiModel(G4int ver, const G4String& name) |
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| 65 | : G4VEmModel(name), |
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| 66 | csFactor(1.0), |
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| 67 | nModels(0), |
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| 68 | verbose(ver), |
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| 69 | isInitialised(false) |
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| 70 | {} |
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| 71 | |
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| 72 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 73 | |
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| 74 | G4eeToHadronsMultiModel::~G4eeToHadronsMultiModel() |
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| 75 | { |
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| 76 | G4int n = models.size(); |
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| 77 | if(n>0) { |
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| 78 | for(G4int i=0; i<n; i++) { |
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| 79 | delete models[i]; |
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| 80 | } |
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| 81 | } |
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| 82 | delete cross; |
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| 83 | } |
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| 84 | |
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| 85 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 86 | |
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[961] | 87 | void G4eeToHadronsMultiModel::Initialise(const G4ParticleDefinition*, |
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| 88 | const G4DataVector&) |
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[819] | 89 | { |
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| 90 | if(!isInitialised) { |
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| 91 | isInitialised = true; |
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| 92 | |
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[961] | 93 | thKineticEnergy = DBL_MAX; |
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| 94 | maxKineticEnergy = 1.2*GeV; |
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[819] | 95 | |
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| 96 | cross = new G4eeCrossSections(); |
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| 97 | |
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[961] | 98 | G4eeToTwoPiModel* m2pi = new G4eeToTwoPiModel(cross); |
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| 99 | m2pi->SetHighEnergy(maxKineticEnergy); |
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| 100 | AddEEModel(m2pi); |
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| 101 | |
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| 102 | G4eeTo3PiModel* m3pi1 = new G4eeTo3PiModel(cross); |
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| 103 | m3pi1->SetHighEnergy(0.95*GeV); |
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| 104 | AddEEModel(m3pi1); |
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| 105 | |
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| 106 | G4eeTo3PiModel* m3pi2 = new G4eeTo3PiModel(cross); |
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| 107 | m3pi2->SetLowEnergy(0.95*GeV); |
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| 108 | m3pi2->SetHighEnergy(maxKineticEnergy); |
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| 109 | AddEEModel(m3pi2); |
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| 110 | |
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| 111 | G4ee2KChargedModel* m2kc = new G4ee2KChargedModel(cross); |
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| 112 | m2kc->SetHighEnergy(maxKineticEnergy); |
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| 113 | AddEEModel(m2kc); |
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| 114 | |
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| 115 | G4ee2KNeutralModel* m2kn = new G4ee2KNeutralModel(cross); |
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| 116 | m2kn->SetHighEnergy(maxKineticEnergy); |
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| 117 | AddEEModel(m2kn); |
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| 118 | |
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| 119 | G4eeToPGammaModel* mpg1 = new G4eeToPGammaModel(cross,"pi0"); |
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| 120 | mpg1->SetLowEnergy(0.7*GeV); |
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| 121 | mpg1->SetHighEnergy(maxKineticEnergy); |
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| 122 | AddEEModel(mpg1); |
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| 123 | |
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| 124 | G4eeToPGammaModel* mpg2 = new G4eeToPGammaModel(cross,"eta"); |
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| 125 | mpg2->SetLowEnergy(0.7*GeV); |
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| 126 | mpg2->SetHighEnergy(maxKineticEnergy); |
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| 127 | AddEEModel(mpg2); |
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| 128 | |
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| 129 | nModels = models.size(); |
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| 130 | |
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| 131 | if(pParticleChange) { |
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[819] | 132 | fParticleChange = |
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| 133 | reinterpret_cast<G4ParticleChangeForGamma*>(pParticleChange); |
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[961] | 134 | } else { |
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[819] | 135 | fParticleChange = new G4ParticleChangeForGamma(); |
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[961] | 136 | } |
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[819] | 137 | } |
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| 138 | } |
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| 139 | |
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| 140 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 141 | |
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[961] | 142 | void G4eeToHadronsMultiModel::AddEEModel(G4Vee2hadrons* mod) |
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| 143 | { |
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| 144 | G4eeToHadronsModel* model = new G4eeToHadronsModel(mod, verbose); |
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| 145 | model->SetLowEnergyLimit(LowEnergyLimit()); |
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| 146 | model->SetHighEnergyLimit(HighEnergyLimit()); |
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| 147 | models.push_back(model); |
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| 148 | G4double elow = mod->ThresholdEnergy(); |
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| 149 | ekinMin.push_back(elow); |
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| 150 | if(thKineticEnergy > elow) thKineticEnergy = elow; |
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| 151 | ekinMax.push_back(mod->HighEnergy()); |
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| 152 | ekinPeak.push_back(mod->PeakEnergy()); |
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| 153 | cumSum.push_back(0.0); |
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| 154 | } |
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| 155 | |
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| 156 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 157 | |
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| 158 | G4double G4eeToHadronsMultiModel::CrossSectionPerVolume( |
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| 159 | const G4Material* mat, |
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| 160 | const G4ParticleDefinition* p, |
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| 161 | G4double kineticEnergy, |
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| 162 | G4double, G4double) |
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| 163 | { |
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| 164 | return mat->GetElectronDensity()* |
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| 165 | ComputeCrossSectionPerElectron(p, kineticEnergy); |
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| 166 | } |
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| 167 | |
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| 168 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 169 | |
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| 170 | G4double G4eeToHadronsMultiModel::ComputeCrossSectionPerAtom( |
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| 171 | const G4ParticleDefinition* p, |
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| 172 | G4double kineticEnergy, |
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| 173 | G4double Z, G4double, |
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| 174 | G4double, G4double) |
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| 175 | { |
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| 176 | return Z*ComputeCrossSectionPerElectron(p, kineticEnergy); |
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| 177 | } |
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| 178 | |
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| 179 | |
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| 180 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 181 | |
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| 182 | void G4eeToHadronsMultiModel::SampleSecondaries(std::vector<G4DynamicParticle*>* newp, |
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| 183 | const G4MaterialCutsCouple* couple, |
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| 184 | const G4DynamicParticle* dp, |
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| 185 | G4double, G4double) |
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| 186 | { |
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| 187 | G4double kinEnergy = dp->GetKineticEnergy(); |
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| 188 | if (kinEnergy > thKineticEnergy) { |
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| 189 | G4double q = cumSum[nModels-1]*G4UniformRand(); |
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| 190 | for(G4int i=0; i<nModels; i++) { |
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| 191 | if(q <= cumSum[i]) { |
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| 192 | (models[i])->SampleSecondaries(newp, couple,dp); |
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| 193 | if(newp->size() > 0) fParticleChange->ProposeTrackStatus(fStopAndKill); |
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| 194 | break; |
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| 195 | } |
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| 196 | } |
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| 197 | } |
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| 198 | } |
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| 199 | |
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| 200 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 201 | |
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[819] | 202 | void G4eeToHadronsMultiModel::PrintInfo() |
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| 203 | { |
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| 204 | if(verbose > 0) { |
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[961] | 205 | G4double e1 = 0.5*thKineticEnergy*thKineticEnergy/electron_mass_c2 |
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| 206 | - 2.0*electron_mass_c2; |
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| 207 | G4double e2 = 0.5*maxKineticEnergy*maxKineticEnergy/electron_mass_c2 |
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| 208 | - 2.0*electron_mass_c2; |
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| 209 | G4cout << " e+ annihilation into hadrons active from " |
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| 210 | << e1/GeV << " GeV to " << e2/GeV << " GeV" |
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[819] | 211 | << G4endl; |
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| 212 | } |
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| 213 | } |
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| 214 | |
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| 215 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 216 | |
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| 217 | void G4eeToHadronsMultiModel::SetCrossSecFactor(G4double fac) |
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| 218 | { |
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| 219 | if(fac > 1.0) { |
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| 220 | csFactor = fac; |
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| 221 | if(verbose > 0) |
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[961] | 222 | G4cout << "### G4eeToHadronsMultiModel: The cross section for G4eeToHadronsMultiModel " |
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| 223 | << " is increased by the Factor= " << csFactor << G4endl; |
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[819] | 224 | } |
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| 225 | } |
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| 226 | |
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| 227 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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