[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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| 26 | #include "G4CascadeElasticInterface.hh" |
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| 27 | #include "globals.hh" |
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| 28 | #include "G4DynamicParticleVector.hh" |
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| 29 | #include "G4IonTable.hh" |
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| 30 | #include "G4InuclCollider.hh" |
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| 31 | #include "G4IntraNucleiCascader.hh" |
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| 32 | #include "G4ElementaryParticleCollider.hh" |
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| 33 | #include "G4NonEquilibriumEvaporator.hh" |
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| 34 | #include "G4EquilibriumEvaporator.hh" |
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| 35 | #include "G4Fissioner.hh" |
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| 36 | #include "G4BigBanger.hh" |
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| 37 | #include "G4InuclElementaryParticle.hh" |
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| 38 | #include "G4InuclNuclei.hh" |
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| 39 | #include "G4InuclParticle.hh" |
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| 40 | #include "G4CollisionOutput.hh" |
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| 41 | #include "G4V3DNucleus.hh" |
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| 42 | #include "G4Track.hh" |
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| 43 | #include "G4Nucleus.hh" |
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| 44 | #include "G4NucleiModel.hh" |
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| 45 | #include "G4LorentzRotation.hh" |
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| 46 | |
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| 47 | |
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| 48 | typedef std::vector<G4InuclElementaryParticle>::iterator particleIterator; |
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| 49 | typedef std::vector<G4InuclNuclei>::iterator nucleiIterator; |
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| 50 | |
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| 51 | G4CascadeElasticInterface::G4CascadeElasticInterface() |
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| 52 | :verboseLevel(0) { |
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| 53 | |
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| 54 | if (verboseLevel > 3) { |
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| 55 | G4cout << " >>> G4CascadeElasticInterface::G4CascadeElasticInterface" << G4endl; |
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| 56 | } |
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| 57 | } |
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| 58 | |
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| 59 | G4ReactionProductVector* G4CascadeElasticInterface::Propagate(G4KineticTrackVector* , |
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| 60 | G4V3DNucleus* ) { |
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| 61 | return 0; |
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| 62 | } |
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| 63 | |
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| 64 | // #define debug_G4CascadeElasticInterface |
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| 65 | |
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| 66 | G4HadFinalState* G4CascadeElasticInterface::ApplyYourself(const G4HadProjectile& aTrack, |
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| 67 | G4Nucleus& theNucleus) { |
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| 68 | #ifdef debug_G4CascadeElasticInterface |
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| 69 | static G4int counter(0); |
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| 70 | counter++; |
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| 71 | G4cerr << "Reaction number "<< counter << " "<<aTrack.GetDynamicParticle()->GetDefinition()->GetParticleName()<<" "<< aTrack.GetDynamicParticle()->GetKineticEnergy()<<G4endl; |
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| 72 | #endif |
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| 73 | |
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| 74 | theResult.Clear(); |
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| 75 | |
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| 76 | if (verboseLevel > 3) { |
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| 77 | G4cout << " >>> G4CascadeElasticInterface::ApplyYourself" << G4endl; |
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| 78 | }; |
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| 79 | |
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| 80 | G4double eInit = 0.0; |
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| 81 | G4double eTot = 0.0; |
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| 82 | G4double sumBaryon = 0.0; |
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| 83 | G4double sumEnergy = 0.0; |
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| 84 | |
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| 85 | // Make conversion between native Geant4 and Bertini cascade classes. |
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| 86 | // NOTE: Geant4 units are MeV = 1 and GeV = 1000. Cascade code by default use GeV = 1. |
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| 87 | |
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| 88 | enum particleType { nuclei = 0, proton = 1, neutron = 2, pionPlus = 3, pionMinus = 5, pionZero = 7, photon = 10 }; |
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| 89 | |
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| 90 | G4int bulletType = 0; |
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| 91 | |
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| 92 | // Coding particles |
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| 93 | if (aTrack.GetDefinition() == G4Proton::Proton() ) bulletType = proton; |
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| 94 | if (aTrack.GetDefinition() == G4Neutron::Neutron() ) bulletType = neutron; |
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| 95 | if (aTrack.GetDefinition() == G4PionPlus::PionPlus() ) bulletType = pionPlus; |
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| 96 | if (aTrack.GetDefinition() == G4PionMinus::PionMinus() ) bulletType = pionMinus; |
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| 97 | if (aTrack.GetDefinition() == G4PionZero::PionZero() ) bulletType = pionZero; |
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| 98 | if (aTrack.GetDefinition() == G4Gamma::Gamma() ) bulletType = photon; |
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| 99 | |
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| 100 | // Code momentum and energy. |
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| 101 | G4double px,py,pz; |
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| 102 | px=aTrack.Get4Momentum().px() / GeV; |
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| 103 | py=aTrack.Get4Momentum().py() / GeV; |
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| 104 | pz=aTrack.Get4Momentum().pz() / GeV; |
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| 105 | |
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| 106 | G4LorentzVector projectileMomentum = aTrack.Get4Momentum(); |
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| 107 | G4LorentzRotation toZ; |
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| 108 | toZ.rotateZ(-projectileMomentum.phi()); |
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| 109 | toZ.rotateY(-projectileMomentum.theta()); |
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| 110 | G4LorentzRotation toLabFrame = toZ.inverse(); |
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| 111 | |
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[962] | 112 | G4CascadeMomentum momentumBullet; |
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[819] | 113 | momentumBullet[0] =0.; |
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| 114 | momentumBullet[1] =0; |
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| 115 | momentumBullet[2] =0; |
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| 116 | momentumBullet[3] =std::sqrt(px*px+py*py+pz*pz); |
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| 117 | |
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| 118 | G4InuclElementaryParticle * bullet = new G4InuclElementaryParticle(momentumBullet, bulletType); |
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| 119 | |
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| 120 | sumEnergy = bullet->getKineticEnergy(); // In GeV |
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| 121 | if (bulletType == proton || bulletType == neutron) { |
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| 122 | sumBaryon += 1; |
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| 123 | } |
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| 124 | |
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| 125 | // Set target |
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| 126 | G4InuclNuclei* target = 0; |
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| 127 | G4InuclParticle* targetH = 0; |
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| 128 | // and outcoming particles |
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| 129 | G4DynamicParticle* cascadeParticle = 0; |
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| 130 | |
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[962] | 131 | G4CascadeMomentum targetMomentum; |
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[819] | 132 | |
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| 133 | G4double theNucleusA = theNucleus.GetN(); |
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| 134 | |
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| 135 | if ( !(G4int(theNucleusA) == 1) ) { |
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| 136 | target = new G4InuclNuclei(targetMomentum, |
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| 137 | theNucleusA, |
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| 138 | theNucleus.GetZ()); |
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| 139 | target->setEnergy(); |
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| 140 | |
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[962] | 141 | const G4CascadeMomentum& bmom = bullet->getMomentum(); |
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[819] | 142 | eInit = std::sqrt(bmom[0] * bmom[0]); |
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[962] | 143 | const G4CascadeMomentum& tmom = target->getMomentum(); |
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[819] | 144 | eInit += std::sqrt(tmom[0] * tmom[0]); |
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| 145 | |
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| 146 | sumBaryon += theNucleusA; |
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| 147 | |
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| 148 | if (verboseLevel > 2) { |
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| 149 | G4cout << "Bullet: " << G4endl; |
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| 150 | bullet->printParticle(); |
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| 151 | } |
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| 152 | if (verboseLevel > 2) { |
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| 153 | G4cout << "Target: " << G4endl; |
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| 154 | target->printParticle(); |
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| 155 | } |
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| 156 | } |
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| 157 | |
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| 158 | G4CollisionOutput output; |
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| 159 | |
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| 160 | // Colliders initialisation |
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| 161 | G4ElementaryParticleCollider* colep = new G4ElementaryParticleCollider; |
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| 162 | G4IntraNucleiCascader* inc = new G4IntraNucleiCascader; // the actual cascade |
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| 163 | inc->setInteractionCase(1); // Interaction type is particle with nuclei. |
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| 164 | |
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| 165 | G4NonEquilibriumEvaporator* noneq = new G4NonEquilibriumEvaporator; |
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| 166 | G4EquilibriumEvaporator* eqil = new G4EquilibriumEvaporator; |
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| 167 | G4Fissioner* fiss = new G4Fissioner; |
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| 168 | G4BigBanger* bigb = new G4BigBanger; |
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| 169 | G4InuclCollider* collider = new G4InuclCollider(colep, inc, noneq, eqil, fiss, bigb); |
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| 170 | |
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| 171 | G4int maxTries = 10; // maximum tries for inelastic collision to avoid infinite loop |
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| 172 | G4int nTries = 0; // try counter |
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| 173 | |
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| 174 | if (G4int(theNucleusA) == 1) { // special treatment for target H(1,1) (proton) |
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| 175 | |
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| 176 | targetH = new G4InuclElementaryParticle(targetMomentum, 1); |
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| 177 | |
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| 178 | G4float cutElastic[8]; |
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| 179 | cutElastic[proton ] = 1.0; // GeV |
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| 180 | cutElastic[neutron ] = 1.0; |
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| 181 | cutElastic[pionPlus ] = 0.6; |
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| 182 | cutElastic[pionMinus] = 0.2; |
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| 183 | cutElastic[pionZero ] = 0.2; |
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| 184 | |
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| 185 | if (momentumBullet[3] > cutElastic[bulletType]) { // inelastic collision possible |
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| 186 | |
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| 187 | do { // we try to create inelastic interaction |
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| 188 | output = collider->collide(bullet, targetH); |
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| 189 | nTries++; |
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| 190 | } while( |
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| 191 | (nTries < maxTries) && |
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| 192 | (output.getOutgoingParticles().size() == 2 && // elastic: bullet + p = H(1,1) coming out |
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| 193 | (output.getOutgoingParticles().begin()->type() == bulletType || |
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| 194 | output.getOutgoingParticles().begin()->type() == proton) |
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| 195 | ) |
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| 196 | ); |
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| 197 | |
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| 198 | } else { // only elastic collision is energetically possible |
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| 199 | output = collider->collide(bullet, targetH); |
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| 200 | } |
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| 201 | |
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| 202 | sumBaryon += 1; |
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| 203 | |
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[962] | 204 | const G4CascadeMomentum& bmom = bullet->getMomentum(); |
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[819] | 205 | eInit = std::sqrt(bmom[0] * bmom[0]); |
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[962] | 206 | const G4CascadeMomentum& tmom = targetH->getMomentum(); |
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[819] | 207 | eInit += std::sqrt(tmom[0] * tmom[0]); |
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| 208 | |
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| 209 | if (verboseLevel > 2) { |
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| 210 | G4cout << "Target: " << G4endl; |
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| 211 | targetH->printParticle(); |
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| 212 | } |
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| 213 | |
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| 214 | } else { // treat all other targets excepet H(1,1) |
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| 215 | |
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| 216 | do // we try to create inelastic interaction |
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| 217 | { |
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| 218 | output = collider->collide(bullet, target ); |
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| 219 | nTries++; |
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| 220 | } while( |
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| 221 | (nTries < maxTries) && |
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| 222 | (output.getOutgoingParticles().size() + output.getNucleiFragments().size() < 2.5) && |
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| 223 | (output.getOutgoingParticles().size()!=0) && |
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| 224 | (output.getOutgoingParticles().begin()->type()==bullet->type()) |
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| 225 | ); |
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| 226 | |
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| 227 | } |
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| 228 | |
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| 229 | if (verboseLevel > 1) |
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| 230 | { |
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| 231 | G4cout << " Cascade output: " << G4endl; |
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| 232 | output.printCollisionOutput(); |
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| 233 | } |
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| 234 | |
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| 235 | // Convert cascade data to use hadronics interface |
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| 236 | std::vector<G4InuclNuclei> nucleiFragments = output.getNucleiFragments(); |
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| 237 | std::vector<G4InuclElementaryParticle> particles = output.getOutgoingParticles(); |
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| 238 | |
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| 239 | theResult.SetStatusChange(stopAndKill); |
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| 240 | |
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| 241 | if (!particles.empty()) { |
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| 242 | particleIterator ipart; |
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| 243 | G4int outgoingParticle; |
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| 244 | |
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| 245 | for (ipart = particles.begin(); ipart != particles.end(); ipart++) { |
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| 246 | outgoingParticle = ipart->type(); |
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[962] | 247 | const G4CascadeMomentum& mom = ipart->getMomentum(); |
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[819] | 248 | eTot += std::sqrt(mom[0] * mom[0]); |
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| 249 | |
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| 250 | G4double ekin = ipart->getKineticEnergy() * GeV; |
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| 251 | G4ThreeVector aMom(mom[1], mom[2], mom[3]); |
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| 252 | aMom = aMom.unit(); |
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| 253 | |
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| 254 | if (outgoingParticle == proton || outgoingParticle == neutron) { |
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| 255 | sumBaryon -= 1; |
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| 256 | } |
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| 257 | |
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| 258 | sumEnergy -= ekin / GeV; |
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| 259 | |
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| 260 | switch(outgoingParticle) { |
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| 261 | |
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| 262 | case proton: |
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| 263 | #ifdef debug_G4CascadeElasticInterface |
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| 264 | G4cerr << "proton " << counter << " " << aMom << " " << ekin << G4endl; |
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| 265 | #endif |
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| 266 | cascadeParticle = |
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| 267 | new G4DynamicParticle(G4Proton::ProtonDefinition(), aMom, ekin); |
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| 268 | break; |
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| 269 | |
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| 270 | case neutron: |
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| 271 | |
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| 272 | #ifdef debug_G4CascadeElasticInterface |
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| 273 | G4cerr << "neutron "<< counter<<" "<<aMom<<" "<< ekin<<G4endl; |
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| 274 | #endif |
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| 275 | cascadeParticle = |
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| 276 | new G4DynamicParticle(G4Neutron::NeutronDefinition(), aMom, ekin); |
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| 277 | break; |
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| 278 | |
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| 279 | case pionPlus: |
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| 280 | cascadeParticle = |
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| 281 | new G4DynamicParticle(G4PionPlus::PionPlusDefinition(), aMom, ekin); |
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| 282 | |
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| 283 | #ifdef debug_G4CascadeElasticInterface |
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| 284 | G4cerr << "pionPlus "<< counter<<" "<<aMom<<" "<< ekin<<G4endl; |
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| 285 | #endif |
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| 286 | break; |
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| 287 | |
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| 288 | case pionMinus: |
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| 289 | cascadeParticle = |
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| 290 | new G4DynamicParticle(G4PionMinus::PionMinusDefinition(), aMom, ekin); |
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| 291 | |
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| 292 | #ifdef debug_G4CascadeElasticInterface |
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| 293 | G4cerr << "pionMinus "<< counter<<" "<<aMom<<" "<< ekin<<G4endl; |
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| 294 | #endif |
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| 295 | break; |
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| 296 | |
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| 297 | case pionZero: |
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| 298 | cascadeParticle = |
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| 299 | new G4DynamicParticle(G4PionZero::PionZeroDefinition(), aMom, ekin); |
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| 300 | |
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| 301 | #ifdef debug_G4CascadeElasticInterface |
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| 302 | G4cerr << "pionZero "<< counter<<" "<<aMom<<" "<< ekin<<G4endl; |
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| 303 | #endif |
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| 304 | break; |
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| 305 | |
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| 306 | case photon: |
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| 307 | cascadeParticle = |
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| 308 | new G4DynamicParticle(G4Gamma::Gamma(), aMom, ekin); |
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| 309 | |
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| 310 | #ifdef debug_G4CascadeElasticInterface |
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| 311 | G4cerr << "photon "<< counter<<" "<<aMom<<" "<< ekin<<G4endl; |
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| 312 | #endif |
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| 313 | break; |
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| 314 | |
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| 315 | default: |
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| 316 | G4cout << " ERROR: G4CascadeElasticInterface::Propagate undefined particle type" |
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| 317 | << G4endl; |
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| 318 | } |
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| 319 | |
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| 320 | cascadeParticle->Set4Momentum(cascadeParticle->Get4Momentum()*=toLabFrame); |
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| 321 | theResult.AddSecondary(cascadeParticle); |
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| 322 | } |
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| 323 | } |
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| 324 | |
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| 325 | // get nuclei fragments |
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| 326 | G4DynamicParticle * aFragment = 0; |
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| 327 | G4ParticleDefinition * aIonDef = 0; |
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| 328 | G4ParticleTable *theTableOfParticles = G4ParticleTable::GetParticleTable(); |
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| 329 | |
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| 330 | if (!nucleiFragments.empty()) { |
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| 331 | nucleiIterator ifrag; |
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| 332 | |
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| 333 | for (ifrag = nucleiFragments.begin(); ifrag != nucleiFragments.end(); ifrag++) |
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| 334 | { |
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| 335 | G4double eKin = ifrag->getKineticEnergy() * GeV; |
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[962] | 336 | const G4CascadeMomentum& mom = ifrag->getMomentum(); |
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[819] | 337 | eTot += std::sqrt(mom[0] * mom[0]); |
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| 338 | |
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| 339 | G4ThreeVector aMom(mom[1], mom[2], mom[3]); |
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| 340 | aMom = aMom.unit(); |
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| 341 | |
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| 342 | // hpw @@@ ==> Should be zero: G4double fragmentExitation = ifrag->getExitationEnergyInGeV(); |
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| 343 | |
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| 344 | if (verboseLevel > 2) { |
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| 345 | G4cout << " Nuclei fragment: " << G4endl; |
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| 346 | ifrag->printParticle(); |
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| 347 | } |
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| 348 | |
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| 349 | G4int A = G4int(ifrag->getA()); |
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| 350 | G4int Z = G4int(ifrag->getZ()); |
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| 351 | aIonDef = theTableOfParticles->FindIon(Z, A, 0, Z); |
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| 352 | |
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| 353 | aFragment = new G4DynamicParticle(aIonDef, aMom, eKin); |
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| 354 | |
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| 355 | sumBaryon -= A; |
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| 356 | sumEnergy -= eKin / GeV; |
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| 357 | |
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| 358 | aFragment->Set4Momentum(aFragment->Get4Momentum()*=toLabFrame); |
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| 359 | theResult.AddSecondary(aFragment); |
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| 360 | } |
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| 361 | } |
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| 362 | |
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| 363 | if (verboseLevel > 2) { |
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| 364 | if (sumBaryon != 0) { |
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| 365 | G4cout << "ERROR: no baryon number conservation, sum of baryons = " |
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| 366 | << sumBaryon << G4endl; |
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| 367 | } |
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| 368 | |
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| 369 | if (sumEnergy > 0.01 ) { |
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| 370 | G4cout << "Kinetic energy conservation violated by " |
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| 371 | << sumEnergy << " GeV" << G4endl; |
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| 372 | } |
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| 373 | |
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| 374 | G4cout << "Total energy conservation at level ~" |
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| 375 | << (eInit - eTot) * GeV << " MeV" << G4endl; |
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| 376 | |
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| 377 | if (sumEnergy < -5.0e-5 ) { // 0.05 MeV |
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| 378 | G4cout << "FATAL ERROR: energy created " |
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| 379 | << sumEnergy * GeV << " MeV" << G4endl; |
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| 380 | } |
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| 381 | } |
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| 382 | |
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| 383 | delete bullet; |
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| 384 | delete colep; |
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| 385 | delete inc; |
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| 386 | delete noneq; |
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| 387 | delete fiss; |
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| 388 | delete eqil; |
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| 389 | delete bigb; |
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| 390 | delete collider; |
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| 391 | |
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| 392 | if(target != 0) delete target; |
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| 393 | if(targetH != 0) delete targetH; |
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| 394 | // if(cascadeParticle != 0) delete cascadeParticle; |
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| 395 | // if(aFragment != 0) delete aFragment; |
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| 396 | |
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| 397 | return &theResult; |
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| 398 | } |
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