[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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[962] | 26 | // 080505 Fixed and changed sampling method of impact parameter by T. Koi |
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| 27 | // 080602 Fix memory leaks by T. Koi |
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| 28 | // 080612 Delete unnecessary dependency and unused functions |
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| 29 | // Change criterion of reaction by T. Koi |
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| 30 | // 081107 Add UnUseGEM (then use the default channel of G4Evaporation) |
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| 31 | // UseFrag (chage criterion of a inelastic reaction) |
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| 32 | // Fix bug in nucleon projectiles by T. Koi |
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[1055] | 33 | // 090122 Be8 -> Alpha + Alpha |
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| 34 | // 090331 Change member shenXS and genspaXS object to pointer |
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[1196] | 35 | // 091119 Fix for incidence of neutral particles |
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[962] | 36 | // |
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[819] | 37 | #include "G4QMDReaction.hh" |
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| 38 | #include "G4QMDNucleus.hh" |
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| 39 | #include "G4QMDGroundStateNucleus.hh" |
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| 40 | |
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| 41 | #include "G4NistManager.hh" |
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| 42 | |
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| 43 | G4QMDReaction::G4QMDReaction() |
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[962] | 44 | : system ( NULL ) |
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[819] | 45 | , deltaT ( 1 ) // in fsec |
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| 46 | , maxTime ( 100 ) // will have maxTime-th time step |
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[962] | 47 | , gem ( true ) |
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| 48 | , frag ( false ) |
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[819] | 49 | { |
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[1055] | 50 | |
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| 51 | //090331 |
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| 52 | shenXS = new G4IonsShenCrossSection(); |
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| 53 | //genspaXS = new G4GeneralSpaceNNCrossSection(); |
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[819] | 54 | meanField = new G4QMDMeanField(); |
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| 55 | collision = new G4QMDCollision(); |
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| 56 | |
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[962] | 57 | excitationHandler = new G4ExcitationHandler; |
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[819] | 58 | evaporation = new G4Evaporation; |
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| 59 | excitationHandler->SetEvaporation( evaporation ); |
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[962] | 60 | setEvaporationCh(); |
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[819] | 61 | } |
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| 62 | |
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| 63 | |
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| 64 | |
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| 65 | G4QMDReaction::~G4QMDReaction() |
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| 66 | { |
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| 67 | delete evaporation; |
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[962] | 68 | delete excitationHandler; |
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[819] | 69 | delete collision; |
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| 70 | delete meanField; |
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| 71 | } |
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| 72 | |
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| 73 | |
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| 74 | |
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| 75 | G4HadFinalState* G4QMDReaction::ApplyYourself( const G4HadProjectile & projectile , G4Nucleus & target ) |
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| 76 | { |
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| 77 | //G4cout << "G4QMDReaction::ApplyYourself" << G4endl; |
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| 78 | |
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| 79 | theParticleChange.Clear(); |
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| 80 | |
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| 81 | system = new G4QMDSystem; |
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| 82 | |
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| 83 | G4int proj_Z = 0; |
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| 84 | G4int proj_A = 0; |
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| 85 | G4ParticleDefinition* proj_pd = ( G4ParticleDefinition* ) projectile.GetDefinition(); |
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| 86 | if ( proj_pd->GetParticleType() == "nucleus" ) |
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| 87 | { |
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| 88 | proj_Z = proj_pd->GetAtomicNumber(); |
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| 89 | proj_A = proj_pd->GetAtomicMass(); |
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| 90 | } |
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| 91 | else |
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| 92 | { |
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| 93 | proj_Z = (int)( proj_pd->GetPDGCharge()/eplus ); |
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| 94 | proj_A = 1; |
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| 95 | } |
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| 96 | G4int targ_Z = int ( target.GetZ() + 0.5 ); |
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| 97 | G4int targ_A = int ( target.GetN() + 0.5 ); |
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| 98 | G4ParticleDefinition* targ_pd = G4ParticleTable::GetParticleTable()->GetIon( targ_Z , targ_A , 0.0 ); |
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| 99 | |
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| 100 | |
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| 101 | G4NistManager* nistMan = G4NistManager::Instance(); |
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| 102 | // G4Element* G4NistManager::FindOrBuildElement( targ_Z ); |
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| 103 | |
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| 104 | const G4DynamicParticle* proj_dp = new G4DynamicParticle ( proj_pd , projectile.Get4Momentum() ); |
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| 105 | const G4Element* targ_ele = nistMan->FindOrBuildElement( targ_Z ); |
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| 106 | G4double aTemp = projectile.GetMaterial()->GetTemperature(); |
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| 107 | |
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[1055] | 108 | //090331 |
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| 109 | G4double xs_0 = shenXS->GetCrossSection ( proj_dp , targ_ele , aTemp ); |
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| 110 | //G4double xs_0 = genspaXS->GetCrossSection ( proj_dp , targ_ele , aTemp ); |
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[962] | 111 | G4double bmax_0 = std::sqrt( xs_0 / pi ); |
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[819] | 112 | //std::cout << "bmax_0 in fm (fermi) " << bmax_0/fermi << std::endl; |
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| 113 | |
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| 114 | //delete proj_dp; |
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| 115 | |
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| 116 | G4bool elastic = true; |
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| 117 | |
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| 118 | std::vector< G4QMDNucleus* > nucleuses; // Secondary nuceluses |
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| 119 | G4ThreeVector boostToReac; // ReactionSystem (CM or NN); |
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| 120 | G4ThreeVector boostBackToLAB; // Reaction System to LAB; |
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| 121 | |
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| 122 | G4LorentzVector targ4p( G4ThreeVector( 0.0 ) , targ_pd->GetPDGMass()/GeV ); |
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| 123 | G4ThreeVector boostLABtoCM = targ4p.findBoostToCM( proj_dp->Get4Momentum()/GeV ); // CM of target and proj; |
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| 124 | |
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| 125 | G4double p1 = proj_dp->GetMomentum().mag()/GeV/proj_A; |
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| 126 | G4double m1 = proj_dp->GetDefinition()->GetPDGMass()/GeV/proj_A; |
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| 127 | G4double e1 = std::sqrt( p1*p1 + m1*m1 ); |
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| 128 | G4double e2 = targ_pd->GetPDGMass()/GeV/targ_A; |
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| 129 | G4double beta_nn = -p1 / ( e1+e2 ); |
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| 130 | |
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| 131 | G4ThreeVector boostLABtoNN ( 0. , 0. , beta_nn ); // CM of NN; |
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| 132 | |
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| 133 | G4double beta_nncm = ( - boostLABtoCM.beta() + boostLABtoNN.beta() ) / ( 1 - boostLABtoCM.beta() * boostLABtoNN.beta() ) ; |
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| 134 | |
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| 135 | //std::cout << targ4p << std::endl; |
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| 136 | //std::cout << proj_dp->Get4Momentum()<< std::endl; |
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| 137 | //std::cout << beta_nncm << std::endl; |
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| 138 | G4ThreeVector boostNNtoCM( 0. , 0. , beta_nncm ); // |
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| 139 | G4ThreeVector boostCMtoNN( 0. , 0. , -beta_nncm ); // |
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| 140 | |
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| 141 | boostToReac = boostLABtoNN; |
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| 142 | boostBackToLAB = -boostLABtoNN; |
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| 143 | |
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| 144 | delete proj_dp; |
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| 145 | |
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| 146 | while ( elastic ) |
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| 147 | { |
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| 148 | |
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| 149 | // impact parameter |
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| 150 | G4double bmax = 1.05*(bmax_0/fermi); // 10% for Peripheral reactions |
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[962] | 151 | G4double b = bmax * std::sqrt ( G4UniformRand() ); |
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[819] | 152 | //071112 |
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| 153 | //G4double b = 0; |
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| 154 | //G4double b = bmax; |
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| 155 | //G4double b = bmax/1.05 * 0.7 * G4UniformRand(); |
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| 156 | |
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| 157 | //G4cout << "G4QMDRESULT bmax_0 = " << bmax_0/fermi << " fm, bmax = " << bmax << " fm , b = " << b << " fm " << G4endl; |
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| 158 | |
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| 159 | G4double plab = projectile.GetTotalMomentum()/GeV; |
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| 160 | G4double elab = (projectile.GetKineticEnergy() + proj_pd->GetPDGMass() + targ_pd->GetPDGMass() )/GeV; |
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| 161 | |
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| 162 | calcOffSetOfCollision( b , proj_pd , targ_pd , plab , elab , bmax , boostCMtoNN ); |
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| 163 | |
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| 164 | // Projectile |
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| 165 | G4LorentzVector proj4pLAB = projectile.Get4Momentum()/GeV; |
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| 166 | |
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[962] | 167 | G4QMDGroundStateNucleus* proj(NULL); |
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| 168 | if ( projectile.GetDefinition()->GetParticleType() == "nucleus" |
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| 169 | || projectile.GetDefinition()->GetParticleName() == "proton" |
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| 170 | || projectile.GetDefinition()->GetParticleName() == "neutron" ) |
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[819] | 171 | { |
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| 172 | |
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| 173 | proj_Z = proj_pd->GetAtomicNumber(); |
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| 174 | proj_A = proj_pd->GetAtomicMass(); |
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| 175 | |
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| 176 | proj = new G4QMDGroundStateNucleus( proj_Z , proj_A ); |
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| 177 | //proj->ShowParticipants(); |
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| 178 | |
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| 179 | } |
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| 180 | |
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| 181 | meanField->SetSystem ( proj ); |
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| 182 | proj->SetTotalPotential( meanField->GetTotalPotential() ); |
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| 183 | proj->CalEnergyAndAngularMomentumInCM(); |
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| 184 | |
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| 185 | // Target |
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| 186 | G4int iz = int ( target.GetZ() ); |
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| 187 | G4int ia = int ( target.GetN() ); |
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| 188 | |
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[962] | 189 | G4QMDGroundStateNucleus* targ = new G4QMDGroundStateNucleus( iz , ia ); |
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[819] | 190 | |
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| 191 | meanField->SetSystem (targ ); |
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| 192 | targ->SetTotalPotential( meanField->GetTotalPotential() ); |
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| 193 | targ->CalEnergyAndAngularMomentumInCM(); |
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| 194 | |
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| 195 | //G4LorentzVector targ4p( G4ThreeVector( 0.0 ) , targ->GetNuclearMass()/GeV ); |
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| 196 | // Boost Vector to CM |
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| 197 | //boostToCM = targ4p.findBoostToCM( proj4pLAB ); |
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| 198 | |
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| 199 | // Target |
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| 200 | for ( G4int i = 0 ; i < targ->GetTotalNumberOfParticipant() ; i++ ) |
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| 201 | { |
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| 202 | |
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| 203 | G4ThreeVector p0 = targ->GetParticipant( i )->GetMomentum(); |
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| 204 | G4ThreeVector r0 = targ->GetParticipant( i )->GetPosition(); |
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| 205 | |
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| 206 | G4ThreeVector p ( p0.x() + coulomb_collision_px_targ |
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| 207 | , p0.y() |
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| 208 | , p0.z() * coulomb_collision_gamma_targ + coulomb_collision_pz_targ ); |
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| 209 | |
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| 210 | G4ThreeVector r ( r0.x() + coulomb_collision_rx_targ |
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| 211 | , r0.y() |
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| 212 | , r0.z() / coulomb_collision_gamma_targ + coulomb_collision_rz_targ ); |
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| 213 | |
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| 214 | system->SetParticipant( new G4QMDParticipant( targ->GetParticipant( i )->GetDefinition() , p , r ) ); |
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| 215 | system->GetParticipant( i )->SetTarget(); |
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| 216 | |
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| 217 | } |
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| 218 | |
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| 219 | G4LorentzVector proj4pCM = CLHEP::boostOf ( proj4pLAB , boostToReac ); |
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| 220 | G4LorentzVector targ4pCM = CLHEP::boostOf ( targ4p , boostToReac ); |
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| 221 | |
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| 222 | |
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| 223 | // Projectile |
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| 224 | if ( proj != NULL ) |
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| 225 | { |
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| 226 | |
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| 227 | // projectile is nucleus |
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| 228 | |
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| 229 | for ( G4int i = 0 ; i < proj->GetTotalNumberOfParticipant() ; i++ ) |
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| 230 | { |
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| 231 | |
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| 232 | G4ThreeVector p0 = proj->GetParticipant( i )->GetMomentum(); |
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| 233 | G4ThreeVector r0 = proj->GetParticipant( i )->GetPosition(); |
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| 234 | |
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| 235 | G4ThreeVector p ( p0.x() + coulomb_collision_px_proj |
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| 236 | , p0.y() |
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| 237 | , p0.z() * coulomb_collision_gamma_proj + coulomb_collision_pz_proj ); |
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| 238 | |
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| 239 | G4ThreeVector r ( r0.x() + coulomb_collision_rx_proj |
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| 240 | , r0.y() |
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| 241 | , r0.z() / coulomb_collision_gamma_proj + coulomb_collision_rz_proj ); |
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| 242 | |
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| 243 | system->SetParticipant( new G4QMDParticipant( proj->GetParticipant( i )->GetDefinition() , p , r ) ); |
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| 244 | system->GetParticipant ( i + targ->GetTotalNumberOfParticipant() )->SetProjectile(); |
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| 245 | } |
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| 246 | |
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| 247 | } |
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| 248 | else |
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| 249 | { |
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| 250 | |
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| 251 | // projectile is particle |
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| 252 | |
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| 253 | G4int i = targ->GetTotalNumberOfParticipant(); |
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| 254 | |
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| 255 | G4ThreeVector p0( 0 ); |
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| 256 | G4ThreeVector r0( 0 ); |
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| 257 | |
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| 258 | |
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| 259 | G4ThreeVector p ( p0.x() + coulomb_collision_px_proj |
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| 260 | , p0.y() |
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| 261 | , p0.z() * coulomb_collision_gamma_proj + coulomb_collision_pz_proj ); |
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| 262 | |
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| 263 | G4ThreeVector r ( r0.x() + coulomb_collision_rx_proj |
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| 264 | , r0.y() |
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| 265 | , r0.z() / coulomb_collision_gamma_proj + coulomb_collision_rz_proj ); |
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| 266 | |
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| 267 | system->SetParticipant( new G4QMDParticipant( (G4ParticleDefinition*)projectile.GetDefinition() , p , r ) ); |
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| 268 | system->GetParticipant ( i )->SetProjectile(); |
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| 269 | } |
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| 270 | |
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| 271 | delete targ; |
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| 272 | delete proj; |
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| 273 | |
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| 274 | |
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| 275 | meanField->SetSystem ( system ); |
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| 276 | collision->SetMeanField ( meanField ); |
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| 277 | |
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| 278 | // Time Evolution |
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| 279 | //std::cout << "Start time evolution " << std::endl; |
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| 280 | //system->ShowParticipants(); |
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| 281 | for ( G4int i = 0 ; i < maxTime ; i++ ) |
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| 282 | { |
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| 283 | //G4cout << " do Paropagate " << i << " th time step. " << G4endl; |
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| 284 | meanField->DoPropagation( deltaT ); |
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| 285 | //system->ShowParticipants(); |
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[962] | 286 | collision->CalKinematicsOfBinaryCollisions( deltaT ); |
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[819] | 287 | |
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| 288 | if ( i / 10 * 10 == i ) |
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| 289 | { |
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| 290 | //G4cout << i << " th time step. " << G4endl; |
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| 291 | //system->ShowParticipants(); |
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| 292 | } |
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| 293 | //system->ShowParticipants(); |
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| 294 | } |
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| 295 | //system->ShowParticipants(); |
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| 296 | |
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| 297 | |
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| 298 | //std::cout << "Doing Cluster Judgment " << std::endl; |
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| 299 | |
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| 300 | nucleuses = meanField->DoClusterJudgment(); |
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| 301 | |
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| 302 | // Elastic Judgment |
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| 303 | |
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| 304 | G4int numberOfSecondary = int ( nucleuses.size() ) + system->GetTotalNumberOfParticipant(); |
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| 305 | |
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| 306 | G4int sec_a_Z = 0; |
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| 307 | G4int sec_a_A = 0; |
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| 308 | G4ParticleDefinition* sec_a_pd = NULL; |
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| 309 | G4int sec_b_Z = 0; |
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| 310 | G4int sec_b_A = 0; |
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| 311 | G4ParticleDefinition* sec_b_pd = NULL; |
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| 312 | |
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| 313 | if ( numberOfSecondary == 2 ) |
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| 314 | { |
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| 315 | |
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| 316 | G4bool elasticLike_system = false; |
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| 317 | if ( nucleuses.size() == 2 ) |
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| 318 | { |
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| 319 | |
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| 320 | sec_a_Z = nucleuses[0]->GetAtomicNumber(); |
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| 321 | sec_a_A = nucleuses[0]->GetMassNumber(); |
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| 322 | sec_b_Z = nucleuses[1]->GetAtomicNumber(); |
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| 323 | sec_b_A = nucleuses[1]->GetMassNumber(); |
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| 324 | |
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| 325 | if ( ( sec_a_Z == proj_Z && sec_a_A == proj_A && sec_b_Z == targ_Z && sec_b_A == targ_A ) |
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| 326 | || ( sec_a_Z == targ_Z && sec_a_A == targ_A && sec_b_Z == proj_Z && sec_b_A == proj_A ) ) |
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| 327 | { |
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| 328 | elasticLike_system = true; |
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| 329 | } |
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| 330 | |
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| 331 | } |
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| 332 | else if ( nucleuses.size() == 1 ) |
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| 333 | { |
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| 334 | |
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| 335 | sec_a_Z = nucleuses[0]->GetAtomicNumber(); |
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| 336 | sec_a_A = nucleuses[0]->GetMassNumber(); |
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| 337 | sec_b_pd = system->GetParticipant( 0 )->GetDefinition(); |
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| 338 | |
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| 339 | if ( ( sec_a_Z == proj_Z && sec_a_A == proj_A && sec_b_pd == targ_pd ) |
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| 340 | || ( sec_a_Z == targ_Z && sec_a_A == targ_A && sec_b_pd == proj_pd ) ) |
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| 341 | { |
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| 342 | elasticLike_system = true; |
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| 343 | } |
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| 344 | |
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| 345 | } |
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| 346 | else |
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| 347 | { |
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| 348 | |
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| 349 | sec_a_pd = system->GetParticipant( 0 )->GetDefinition(); |
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| 350 | sec_b_pd = system->GetParticipant( 1 )->GetDefinition(); |
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| 351 | |
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| 352 | if ( ( sec_a_pd == proj_pd && sec_b_pd == targ_pd ) |
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| 353 | || ( sec_a_pd == targ_pd && sec_b_pd == proj_pd ) ) |
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| 354 | { |
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| 355 | elasticLike_system = true; |
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| 356 | } |
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| 357 | |
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| 358 | } |
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| 359 | |
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| 360 | if ( elasticLike_system == true ) |
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| 361 | { |
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| 362 | |
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| 363 | G4bool elasticLike_energy = true; |
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| 364 | // Cal ExcitationEnergy |
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| 365 | for ( G4int i = 0 ; i < int ( nucleuses.size() ) ; i++ ) |
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| 366 | { |
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| 367 | |
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| 368 | //meanField->SetSystem( nucleuses[i] ); |
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| 369 | meanField->SetNucleus( nucleuses[i] ); |
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| 370 | //nucleuses[i]->SetTotalPotential( meanField->GetTotalPotential() ); |
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| 371 | //nucleuses[i]->CalEnergyAndAngularMomentumInCM(); |
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| 372 | |
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| 373 | if ( nucleuses[i]->GetExcitationEnergy()*GeV > 1.0*MeV ) elasticLike_energy = false; |
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| 374 | |
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| 375 | } |
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| 376 | |
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| 377 | // Check Collision |
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| 378 | G4bool withCollision = true; |
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| 379 | if ( system->GetNOCollision() == 0 ) withCollision = false; |
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| 380 | |
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| 381 | // Final judegement for Inelasitc or Elastic; |
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| 382 | // |
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| 383 | // ElasticLike without Collision |
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| 384 | //if ( elasticLike_energy == true && withCollision == false ) elastic = true; // ielst = 0 |
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| 385 | // ElasticLike with Collision |
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| 386 | //if ( elasticLike_energy == true && withCollision == true ) elastic = true; // ielst = 1 |
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| 387 | // InelasticLike without Collision |
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[962] | 388 | //if ( elasticLike_energy == false ) elastic = false; // ielst = 2 |
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| 389 | if ( frag == true ) |
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| 390 | if ( elasticLike_energy == false ) elastic = false; |
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[819] | 391 | // InelasticLike with Collision |
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[962] | 392 | if ( elasticLike_energy == false && withCollision == true ) elastic = false; // ielst = 3 |
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[819] | 393 | |
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| 394 | } |
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| 395 | |
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| 396 | } |
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| 397 | else |
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| 398 | { |
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| 399 | |
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| 400 | // numberOfSecondary != 2 |
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| 401 | elastic = false; |
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| 402 | |
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| 403 | } |
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| 404 | |
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| 405 | //071115 |
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| 406 | //G4cout << elastic << G4endl; |
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| 407 | // if elastic is true try again from sampling of impact parameter |
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[962] | 408 | |
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| 409 | if ( elastic == true ) |
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| 410 | { |
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| 411 | // delete this nucleues |
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| 412 | for ( std::vector< G4QMDNucleus* >::iterator |
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| 413 | it = nucleuses.begin() ; it != nucleuses.end() ; it++ ) |
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| 414 | { |
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| 415 | delete *it; |
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| 416 | } |
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| 417 | nucleuses.clear(); |
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| 418 | } |
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[819] | 419 | } |
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| 420 | |
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| 421 | |
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| 422 | // Statical Decay Phase |
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| 423 | |
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| 424 | for ( std::vector< G4QMDNucleus* >::iterator it |
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| 425 | = nucleuses.begin() ; it != nucleuses.end() ; it++ ) |
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| 426 | { |
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| 427 | |
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| 428 | /* |
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| 429 | std::cout << "G4QMDRESULT " |
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| 430 | << (*it)->GetAtomicNumber() |
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| 431 | << " " |
---|
| 432 | << (*it)->GetMassNumber() |
---|
| 433 | << " " |
---|
| 434 | << (*it)->Get4Momentum() |
---|
| 435 | << " " |
---|
| 436 | << (*it)->Get4Momentum().vect() |
---|
| 437 | << " " |
---|
| 438 | << (*it)->Get4Momentum().restMass() |
---|
| 439 | << " " |
---|
| 440 | << (*it)->GetNuclearMass()/GeV |
---|
| 441 | << std::endl; |
---|
| 442 | */ |
---|
| 443 | |
---|
| 444 | meanField->SetNucleus ( *it ); |
---|
| 445 | |
---|
| 446 | if ( (*it)->GetAtomicNumber() == 0 // neutron cluster |
---|
| 447 | || (*it)->GetAtomicNumber() == (*it)->GetMassNumber() ) // proton cluster |
---|
| 448 | { |
---|
| 449 | // push back system |
---|
| 450 | for ( G4int i = 0 ; i < (*it)->GetTotalNumberOfParticipant() ; i++ ) |
---|
| 451 | { |
---|
[962] | 452 | G4QMDParticipant* aP = new G4QMDParticipant( ( (*it)->GetParticipant( i ) )->GetDefinition() , ( (*it)->GetParticipant( i ) )->GetMomentum() , ( (*it)->GetParticipant( i ) )->GetPosition() ); |
---|
| 453 | system->SetParticipant ( aP ); |
---|
[819] | 454 | } |
---|
| 455 | continue; |
---|
| 456 | } |
---|
| 457 | |
---|
| 458 | G4double nucleus_e = std::sqrt ( std::pow ( (*it)->GetNuclearMass()/GeV , 2 ) + std::pow ( (*it)->Get4Momentum().vect().mag() , 2 ) ); |
---|
| 459 | G4LorentzVector nucleus_p4CM ( (*it)->Get4Momentum().vect() , nucleus_e ); |
---|
| 460 | |
---|
| 461 | // std::cout << "G4QMDRESULT nucleus deltaQ " << deltaQ << std::endl; |
---|
| 462 | |
---|
| 463 | G4int ia = (*it)->GetMassNumber(); |
---|
| 464 | G4int iz = (*it)->GetAtomicNumber(); |
---|
| 465 | |
---|
| 466 | G4LorentzVector lv ( G4ThreeVector( 0.0 ) , (*it)->GetExcitationEnergy()*GeV + G4ParticleTable::GetParticleTable()->GetIonTable()->GetIonMass( iz , ia ) ); |
---|
| 467 | |
---|
| 468 | G4Fragment* aFragment = new G4Fragment( ia , iz , lv ); |
---|
| 469 | |
---|
| 470 | G4ReactionProductVector* rv; |
---|
| 471 | rv = excitationHandler->BreakItUp( *aFragment ); |
---|
| 472 | G4bool notBreak = true; |
---|
| 473 | for ( G4ReactionProductVector::iterator itt |
---|
| 474 | = rv->begin() ; itt != rv->end() ; itt++ ) |
---|
| 475 | { |
---|
| 476 | |
---|
| 477 | notBreak = false; |
---|
| 478 | // Secondary from this nucleus (*it) |
---|
| 479 | G4ParticleDefinition* pd = (*itt)->GetDefinition(); |
---|
[1055] | 480 | |
---|
[819] | 481 | G4LorentzVector p4 ( (*itt)->GetMomentum()/GeV , (*itt)->GetTotalEnergy()/GeV ); //in nucleus(*it) rest system |
---|
| 482 | G4LorentzVector p4_CM = CLHEP::boostOf( p4 , -nucleus_p4CM.findBoostToCM() ); // Back to CM |
---|
| 483 | G4LorentzVector p4_LAB = CLHEP::boostOf( p4_CM , boostBackToLAB ); // Back to LAB |
---|
| 484 | |
---|
| 485 | |
---|
[1055] | 486 | //090122 |
---|
| 487 | //theParticleChange.AddSecondary( dp ); |
---|
| 488 | if ( !( pd->GetAtomicNumber() == 4 && pd->GetAtomicMass() == 8 ) ) |
---|
| 489 | { |
---|
| 490 | G4DynamicParticle* dp = new G4DynamicParticle( pd , p4_LAB*GeV ); |
---|
| 491 | theParticleChange.AddSecondary( dp ); |
---|
| 492 | } |
---|
| 493 | else |
---|
| 494 | { |
---|
| 495 | //Be8 -> Alpha + Alpha + Q |
---|
| 496 | G4ThreeVector randomized_direction( G4UniformRand() , G4UniformRand() , G4UniformRand() ); |
---|
| 497 | randomized_direction = randomized_direction.unit(); |
---|
| 498 | G4double q_decay = (*itt)->GetMass() - 2*G4Alpha::Alpha()->GetPDGMass(); |
---|
| 499 | G4double p_decay = std::sqrt ( std::pow(G4Alpha::Alpha()->GetPDGMass()+q_decay/2,2) - std::pow(G4Alpha::Alpha()->GetPDGMass() , 2 ) ); |
---|
| 500 | G4LorentzVector p4_a1 ( p_decay*randomized_direction , G4Alpha::Alpha()->GetPDGMass()+q_decay/2 ); //in Be8 rest system |
---|
| 501 | |
---|
| 502 | G4LorentzVector p4_a1_Be8 = CLHEP::boostOf ( p4_a1/GeV , -p4.findBoostToCM() ); |
---|
| 503 | G4LorentzVector p4_a1_CM = CLHEP::boostOf ( p4_a1_Be8 , -nucleus_p4CM.findBoostToCM() ); |
---|
| 504 | G4LorentzVector p4_a1_LAB = CLHEP::boostOf ( p4_a1_CM , boostBackToLAB ); |
---|
| 505 | |
---|
| 506 | G4LorentzVector p4_a2 ( -p_decay*randomized_direction , G4Alpha::Alpha()->GetPDGMass()+q_decay/2 ); //in Be8 rest system |
---|
| 507 | |
---|
| 508 | G4LorentzVector p4_a2_Be8 = CLHEP::boostOf ( p4_a2/GeV , -p4.findBoostToCM() ); |
---|
| 509 | G4LorentzVector p4_a2_CM = CLHEP::boostOf ( p4_a2_Be8 , -nucleus_p4CM.findBoostToCM() ); |
---|
| 510 | G4LorentzVector p4_a2_LAB = CLHEP::boostOf ( p4_a2_CM , boostBackToLAB ); |
---|
| 511 | |
---|
| 512 | G4DynamicParticle* dp1 = new G4DynamicParticle( G4Alpha::Alpha() , p4_a1_LAB*GeV ); |
---|
| 513 | G4DynamicParticle* dp2 = new G4DynamicParticle( G4Alpha::Alpha() , p4_a2_LAB*GeV ); |
---|
| 514 | theParticleChange.AddSecondary( dp1 ); |
---|
| 515 | theParticleChange.AddSecondary( dp2 ); |
---|
| 516 | } |
---|
| 517 | //090122 |
---|
| 518 | |
---|
[819] | 519 | /* |
---|
| 520 | std::cout |
---|
| 521 | << "Regist Secondary " |
---|
| 522 | << (*itt)->GetDefinition()->GetParticleName() |
---|
| 523 | << " " |
---|
| 524 | << (*itt)->GetMomentum()/GeV |
---|
| 525 | << " " |
---|
| 526 | << (*itt)->GetKineticEnergy()/GeV |
---|
| 527 | << " " |
---|
| 528 | << (*itt)->GetMass()/GeV |
---|
| 529 | << " " |
---|
| 530 | << (*itt)->GetTotalEnergy()/GeV |
---|
| 531 | << " " |
---|
| 532 | << (*itt)->GetTotalEnergy()/GeV * (*itt)->GetTotalEnergy()/GeV |
---|
| 533 | - (*itt)->GetMomentum()/GeV * (*itt)->GetMomentum()/GeV |
---|
| 534 | << " " |
---|
| 535 | << nucleus_p4CM.findBoostToCM() |
---|
| 536 | << " " |
---|
| 537 | << p4 |
---|
| 538 | << " " |
---|
| 539 | << p4_CM |
---|
| 540 | << " " |
---|
| 541 | << p4_LAB |
---|
| 542 | << std::endl; |
---|
| 543 | */ |
---|
| 544 | |
---|
| 545 | } |
---|
| 546 | if ( notBreak == true ) |
---|
| 547 | { |
---|
| 548 | |
---|
| 549 | G4ParticleDefinition* pd = G4ParticleTable::GetParticleTable()->GetIon( (*it)->GetAtomicNumber() , (*it)->GetMassNumber(), (*it)->GetExcitationEnergy()*GeV ); |
---|
| 550 | G4LorentzVector p4_CM = nucleus_p4CM; |
---|
| 551 | G4LorentzVector p4_LAB = CLHEP::boostOf( p4_CM , boostBackToLAB ); // Back to LAB |
---|
| 552 | G4DynamicParticle* dp = new G4DynamicParticle( pd , p4_LAB*GeV ); |
---|
| 553 | theParticleChange.AddSecondary( dp ); |
---|
| 554 | |
---|
| 555 | } |
---|
| 556 | |
---|
[962] | 557 | for ( G4ReactionProductVector::iterator itt |
---|
| 558 | = rv->begin() ; itt != rv->end() ; itt++ ) |
---|
| 559 | { |
---|
| 560 | delete *itt; |
---|
| 561 | } |
---|
| 562 | delete rv; |
---|
| 563 | |
---|
[819] | 564 | delete aFragment; |
---|
| 565 | |
---|
| 566 | } |
---|
| 567 | |
---|
| 568 | |
---|
[962] | 569 | |
---|
[819] | 570 | for ( G4int i = 0 ; i < system->GetTotalNumberOfParticipant() ; i++ ) |
---|
| 571 | { |
---|
| 572 | |
---|
| 573 | // Secondary particles |
---|
| 574 | |
---|
| 575 | G4ParticleDefinition* pd = system->GetParticipant( i )->GetDefinition(); |
---|
| 576 | G4LorentzVector p4_CM = system->GetParticipant( i )->Get4Momentum(); |
---|
| 577 | G4LorentzVector p4_LAB = CLHEP::boostOf( p4_CM , boostBackToLAB ); |
---|
| 578 | G4DynamicParticle* dp = new G4DynamicParticle( pd , p4_LAB*GeV ); |
---|
| 579 | theParticleChange.AddSecondary( dp ); |
---|
| 580 | |
---|
| 581 | /* |
---|
| 582 | G4cout << "G4QMDRESULT " |
---|
| 583 | << "r" << i << " " << system->GetParticipant ( i ) -> GetPosition() << " " |
---|
| 584 | << "p" << i << " " << system->GetParticipant ( i ) -> Get4Momentum() |
---|
| 585 | << G4endl; |
---|
| 586 | */ |
---|
| 587 | |
---|
| 588 | } |
---|
| 589 | |
---|
[962] | 590 | for ( std::vector< G4QMDNucleus* >::iterator it |
---|
| 591 | = nucleuses.begin() ; it != nucleuses.end() ; it++ ) |
---|
| 592 | { |
---|
| 593 | delete *it; // delete nulceuse |
---|
| 594 | } |
---|
| 595 | nucleuses.clear(); |
---|
| 596 | |
---|
[819] | 597 | system->Clear(); |
---|
| 598 | delete system; |
---|
| 599 | |
---|
| 600 | theParticleChange.SetStatusChange( stopAndKill ); |
---|
| 601 | |
---|
| 602 | return &theParticleChange; |
---|
| 603 | |
---|
| 604 | } |
---|
| 605 | |
---|
| 606 | |
---|
| 607 | |
---|
| 608 | void G4QMDReaction::calcOffSetOfCollision( G4double b , |
---|
| 609 | G4ParticleDefinition* pd_proj , |
---|
| 610 | G4ParticleDefinition* pd_targ , |
---|
| 611 | G4double ptot , G4double etot , G4double bmax , G4ThreeVector boostToCM ) |
---|
| 612 | { |
---|
| 613 | G4double mass_proj = pd_proj->GetPDGMass()/GeV; |
---|
| 614 | G4double mass_targ = pd_targ->GetPDGMass()/GeV; |
---|
| 615 | |
---|
| 616 | G4double stot = std::sqrt ( etot*etot - ptot*ptot ); |
---|
| 617 | |
---|
| 618 | G4double pstt = std::sqrt ( ( stot*stot - ( mass_proj + mass_targ ) * ( mass_proj + mass_targ ) |
---|
| 619 | ) * ( stot*stot - ( mass_proj - mass_targ ) * ( mass_proj - mass_targ ) ) ) |
---|
| 620 | / ( 2.0 * stot ); |
---|
| 621 | |
---|
| 622 | G4double pzcc = pstt; |
---|
| 623 | G4double eccm = stot - ( mass_proj + mass_targ ); |
---|
| 624 | |
---|
| 625 | G4int zp = pd_proj->GetAtomicNumber(); |
---|
| 626 | G4int ap = pd_proj->GetAtomicMass(); |
---|
| 627 | G4int zt = pd_targ->GetAtomicNumber(); |
---|
| 628 | G4int at = pd_targ->GetAtomicMass(); |
---|
| 629 | |
---|
| 630 | //G4double rmax0 = 8.0; // T.K dicide parameter value // for low energy |
---|
| 631 | G4double rmax0 = bmax + 4.0; |
---|
| 632 | G4double rmax = std::sqrt( rmax0*rmax0 + b*b ); |
---|
| 633 | |
---|
| 634 | G4double ccoul = 0.001439767; |
---|
| 635 | G4double pcca = 1.0 - double ( zp * zt ) * ccoul / eccm / rmax - ( b / rmax )*( b / rmax ); |
---|
| 636 | |
---|
| 637 | G4double pccf = std::sqrt( pcca ); |
---|
| 638 | |
---|
[1196] | 639 | //Fix for neutral particles |
---|
| 640 | G4double aas1 = 0.0; |
---|
| 641 | G4double bbs = 0.0; |
---|
[819] | 642 | |
---|
[1196] | 643 | if ( zp != 0 ) |
---|
| 644 | { |
---|
| 645 | G4double aas = 2.0 * eccm * b / double ( zp * zt ) / ccoul; |
---|
| 646 | bbs = 1.0 / std::sqrt ( 1.0 + aas*aas ); |
---|
| 647 | aas1 = ( 1.0 + aas * b / rmax ) * bbs; |
---|
| 648 | } |
---|
| 649 | |
---|
[819] | 650 | G4double cost = 0.0; |
---|
| 651 | G4double sint = 0.0; |
---|
| 652 | G4double thet1 = 0.0; |
---|
| 653 | G4double thet2 = 0.0; |
---|
| 654 | if ( 1.0 - aas1*aas1 <= 0 || 1.0 - bbs*bbs <= 0.0 ) |
---|
| 655 | { |
---|
| 656 | cost = 1.0; |
---|
| 657 | sint = 0.0; |
---|
| 658 | } |
---|
| 659 | else |
---|
| 660 | { |
---|
| 661 | G4double aat1 = aas1 / std::sqrt ( 1.0 - aas1*aas1 ); |
---|
| 662 | G4double aat2 = bbs / std::sqrt ( 1.0 - bbs*bbs ); |
---|
| 663 | |
---|
| 664 | thet1 = std::atan ( aat1 ); |
---|
| 665 | thet2 = std::atan ( aat2 ); |
---|
| 666 | |
---|
| 667 | // TK enter to else block |
---|
| 668 | G4double theta = thet1 - thet2; |
---|
| 669 | cost = std::cos( theta ); |
---|
| 670 | sint = std::sin( theta ); |
---|
| 671 | } |
---|
| 672 | |
---|
| 673 | G4double rzpr = -rmax * cost * ( mass_targ ) / ( mass_proj + mass_targ ); |
---|
| 674 | G4double rzta = rmax * cost * ( mass_proj ) / ( mass_proj + mass_targ ); |
---|
| 675 | |
---|
| 676 | G4double rxpr = rmax / 2.0 * sint; |
---|
| 677 | |
---|
| 678 | G4double rxta = -rxpr; |
---|
| 679 | |
---|
| 680 | |
---|
| 681 | G4double pzpc = pzcc * ( cost * pccf + sint * b / rmax ); |
---|
| 682 | G4double pxpr = pzcc * ( -sint * pccf + cost * b / rmax ); |
---|
| 683 | |
---|
| 684 | G4double pztc = - pzpc; |
---|
| 685 | G4double pxta = - pxpr; |
---|
| 686 | |
---|
| 687 | G4double epc = std::sqrt ( pzpc*pzpc + pxpr*pxpr + mass_proj*mass_proj ); |
---|
| 688 | G4double etc = std::sqrt ( pztc*pztc + pxta*pxta + mass_targ*mass_targ ); |
---|
| 689 | |
---|
| 690 | G4double pzpr = pzpc; |
---|
| 691 | G4double pzta = pztc; |
---|
| 692 | G4double epr = epc; |
---|
| 693 | G4double eta = etc; |
---|
| 694 | |
---|
| 695 | // CM -> NN |
---|
| 696 | G4double gammacm = boostToCM.gamma(); |
---|
| 697 | //G4double betacm = -boostToCM.beta(); |
---|
| 698 | G4double betacm = boostToCM.z(); |
---|
| 699 | pzpr = pzpc + betacm * gammacm * ( gammacm / ( 1. + gammacm ) * pzpc * betacm + epc ); |
---|
| 700 | pzta = pztc + betacm * gammacm * ( gammacm / ( 1. + gammacm ) * pztc * betacm + etc ); |
---|
| 701 | epr = gammacm * ( epc + betacm * pzpc ); |
---|
| 702 | eta = gammacm * ( etc + betacm * pztc ); |
---|
| 703 | |
---|
| 704 | //G4double betpr = pzpr / epr; |
---|
| 705 | //G4double betta = pzta / eta; |
---|
| 706 | |
---|
| 707 | G4double gammpr = epr / ( mass_proj ); |
---|
| 708 | G4double gammta = eta / ( mass_targ ); |
---|
| 709 | |
---|
| 710 | pzta = pzta / double ( at ); |
---|
| 711 | pxta = pxta / double ( at ); |
---|
| 712 | |
---|
| 713 | pzpr = pzpr / double ( ap ); |
---|
| 714 | pxpr = pxpr / double ( ap ); |
---|
| 715 | |
---|
| 716 | G4double zeroz = 0.0; |
---|
| 717 | |
---|
| 718 | rzpr = rzpr -zeroz; |
---|
| 719 | rzta = rzta -zeroz; |
---|
| 720 | |
---|
| 721 | // Set results |
---|
| 722 | coulomb_collision_gamma_proj = gammpr; |
---|
| 723 | coulomb_collision_rx_proj = rxpr; |
---|
| 724 | coulomb_collision_rz_proj = rzpr; |
---|
| 725 | coulomb_collision_px_proj = pxpr; |
---|
| 726 | coulomb_collision_pz_proj = pzpr; |
---|
| 727 | |
---|
| 728 | coulomb_collision_gamma_targ = gammta; |
---|
| 729 | coulomb_collision_rx_targ = rxta; |
---|
| 730 | coulomb_collision_rz_targ = rzta; |
---|
| 731 | coulomb_collision_px_targ = pxta; |
---|
| 732 | coulomb_collision_pz_targ = pzta; |
---|
| 733 | |
---|
| 734 | } |
---|
[962] | 735 | |
---|
| 736 | |
---|
| 737 | |
---|
| 738 | void G4QMDReaction::setEvaporationCh() |
---|
| 739 | { |
---|
| 740 | |
---|
| 741 | if ( gem == true ) |
---|
| 742 | evaporation->SetGEMChannel(); |
---|
| 743 | else |
---|
| 744 | evaporation->SetDefaultChannel(); |
---|
| 745 | |
---|
| 746 | } |
---|