[824] | 1 | // |
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| 2 | // ******************************************************************** |
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| 3 | // * License and Disclaimer * |
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| 4 | // * * |
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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| 7 | // * conditions of the Geant4 Software License, included in the file * |
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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| 9 | // * include a list of copyright holders. * |
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| 10 | // * * |
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| 11 | // * Neither the authors of this software system, nor their employing * |
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| 12 | // * institutes,nor the agencies providing financial support for this * |
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| 13 | // * work make any representation or warranty, express or implied, * |
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| 14 | // * regarding this software system or assume any liability for its * |
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| 15 | // * use. Please see the license in the file LICENSE and URL above * |
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| 16 | // * for the full disclaimer and the limitation of liability. * |
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| 17 | // * * |
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| 18 | // * This code implementation is the result of the scientific and * |
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| 19 | // * technical work of the GEANT4 collaboration. * |
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| 20 | // * By using, copying, modifying or distributing the software (or * |
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| 21 | // * any work based on the software) you agree to acknowledge its * |
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| 22 | // * use in resulting scientific publications, and indicate your * |
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| 23 | // * acceptance of all terms of the Geant4 Software license. * |
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| 24 | // ******************************************************************** |
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| 25 | // |
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| 26 | // |
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[1340] | 27 | // $Id: G4DynamicParticle.cc,v 1.30 2010/08/10 15:47:42 kurasige Exp $ |
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| 28 | // GEANT4 tag $Name: particles-V09-03-15 $ |
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[824] | 29 | // |
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| 30 | // |
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| 31 | // -------------------------------------------------------------- |
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| 32 | // GEANT 4 class implementation file |
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| 33 | // |
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| 34 | // History: first implementation, based on object model of |
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| 35 | // 2nd December 1995, G.Cosmo |
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| 36 | // ---------------- G4DynamicParticle ---------------- |
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| 37 | // first implementation by Makoto Asai, 29 January 1996 |
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| 38 | // revised by G.Cosmo, 29 February 1996 |
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| 39 | // revised by H.Kurashige 06 May 1996 |
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| 40 | // revised by Hisaya Kurashige, 27 July 1996 |
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| 41 | // modify thePreAssignedDecayProducts |
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| 42 | // add void SetMomentum(G4ThreeVector &momentum) |
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| 43 | // add void Set4Momentum(G4LorentzVector &momentum) |
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| 44 | // add G4DynamicParticle(G4ParticleDefinition * aParticleDefinition, |
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| 45 | // G4LorentzVector &p4vector) |
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| 46 | // revised by Hisaya Kurashige, 19 Oct 1996 |
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| 47 | // add theKillProcess |
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| 48 | // add ProperTime |
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| 49 | // revised by Hisaya Kurashige, 26 Mar 1997 |
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| 50 | // modify destructor |
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| 51 | // revised by Hisaya Kurashige, 05 June 1997 |
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| 52 | // modify DumpInfo() |
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| 53 | // revised by Hisaya Kurashige, 5 June 1998 |
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| 54 | // remove theKillProcess |
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| 55 | // revised by Hisaya Kurashige, 5 Mar 2001 |
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| 56 | // fixed SetDefinition() |
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| 57 | // revised by V.Ivanchenko, 12 June 2003 |
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| 58 | // fixed problem of massless particles |
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| 59 | // revised by V.Ivanchenko, 18 June 2003 |
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| 60 | // take into account the case of virtual photons |
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[1315] | 61 | // revised by M.Kelsey 12 May 2010 |
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| 62 | // ensure that all constructors initialize all data members |
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[824] | 63 | //-------------------------------------------------------------- |
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| 64 | |
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| 65 | #include "G4DynamicParticle.hh" |
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| 66 | #include "G4DecayProducts.hh" |
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| 67 | #include "G4LorentzVector.hh" |
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| 68 | #include "G4ParticleDefinition.hh" |
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| 69 | #include "G4ParticleTable.hh" |
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| 70 | #include "G4IonTable.hh" |
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| 71 | |
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| 72 | G4Allocator<G4DynamicParticle> aDynamicParticleAllocator; |
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| 73 | |
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| 74 | static const G4double EnergyMomentumRelationAllowance = keV; |
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| 75 | |
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| 76 | //////////////////// |
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| 77 | G4DynamicParticle::G4DynamicParticle(): |
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[1315] | 78 | theMomentumDirection(0.0,0.0,1.0), |
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[824] | 79 | theParticleDefinition(0), |
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| 80 | theKineticEnergy(0.0), |
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| 81 | theProperTime(0.0), |
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[1315] | 82 | theDynamicalMass(0.0), |
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| 83 | theDynamicalCharge(0.0), |
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| 84 | theDynamicalSpin(0.0), |
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| 85 | theDynamicalMagneticMoment(0.0), |
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| 86 | theElectronOccupancy(0), |
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[824] | 87 | thePreAssignedDecayProducts(0), |
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| 88 | thePreAssignedDecayTime(-1.0), |
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| 89 | verboseLevel(1), |
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| 90 | primaryParticle(0), |
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[1315] | 91 | thePDGcode(0) {} |
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[824] | 92 | |
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| 93 | //////////////////// |
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| 94 | // -- constructors ---- |
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| 95 | //////////////////// |
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[1340] | 96 | G4DynamicParticle::G4DynamicParticle(const G4ParticleDefinition * aParticleDefinition, |
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[824] | 97 | const G4ThreeVector& aMomentumDirection, |
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| 98 | G4double aKineticEnergy): |
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| 99 | theMomentumDirection(aMomentumDirection), |
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| 100 | theParticleDefinition(aParticleDefinition), |
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| 101 | theKineticEnergy(aKineticEnergy), |
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| 102 | theProperTime(0.0), |
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[1315] | 103 | theDynamicalMass(aParticleDefinition->GetPDGMass()), |
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| 104 | theDynamicalCharge(aParticleDefinition->GetPDGCharge()), |
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| 105 | theDynamicalSpin(aParticleDefinition->GetPDGSpin()), |
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| 106 | theDynamicalMagneticMoment(aParticleDefinition->GetPDGMagneticMoment()), |
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| 107 | theElectronOccupancy(0), |
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[824] | 108 | thePreAssignedDecayProducts(0), |
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| 109 | thePreAssignedDecayTime(-1.0), |
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| 110 | verboseLevel(1), |
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| 111 | primaryParticle(0), |
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[1315] | 112 | thePDGcode(0) {} |
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[824] | 113 | |
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| 114 | //////////////////// |
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[1340] | 115 | G4DynamicParticle::G4DynamicParticle(const G4ParticleDefinition * aParticleDefinition, |
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[824] | 116 | const G4ThreeVector& aParticleMomentum): |
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| 117 | theParticleDefinition(aParticleDefinition), |
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[1315] | 118 | theKineticEnergy(0.0), |
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[824] | 119 | theProperTime(0.0), |
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[1315] | 120 | theDynamicalMass(aParticleDefinition->GetPDGMass()), |
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| 121 | theDynamicalCharge(aParticleDefinition->GetPDGCharge()), |
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| 122 | theDynamicalSpin(aParticleDefinition->GetPDGSpin()), |
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| 123 | theDynamicalMagneticMoment(aParticleDefinition->GetPDGMagneticMoment()), |
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| 124 | theElectronOccupancy(0), |
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[824] | 125 | thePreAssignedDecayProducts(0), |
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| 126 | thePreAssignedDecayTime(-1.0), |
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| 127 | verboseLevel(1), |
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| 128 | primaryParticle(0), |
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| 129 | thePDGcode(0) |
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| 130 | { |
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| 131 | // 3-dim momentum is given |
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[1315] | 132 | SetMomentum(aParticleMomentum); |
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[824] | 133 | } |
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| 134 | |
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| 135 | //////////////////// |
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[1340] | 136 | G4DynamicParticle::G4DynamicParticle(const G4ParticleDefinition * aParticleDefinition, |
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[824] | 137 | const G4LorentzVector &aParticleMomentum): |
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| 138 | theParticleDefinition(aParticleDefinition), |
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[1315] | 139 | theKineticEnergy(0.0), |
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[824] | 140 | theProperTime(0.0), |
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[1315] | 141 | theDynamicalMass(aParticleDefinition->GetPDGMass()), |
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| 142 | theDynamicalCharge(aParticleDefinition->GetPDGCharge()), |
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| 143 | theDynamicalSpin(aParticleDefinition->GetPDGSpin()), |
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| 144 | theDynamicalMagneticMoment(aParticleDefinition->GetPDGMagneticMoment()), |
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| 145 | theElectronOccupancy(0), |
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[824] | 146 | thePreAssignedDecayProducts(0), |
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| 147 | thePreAssignedDecayTime(-1.0), |
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| 148 | verboseLevel(1), |
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| 149 | primaryParticle(0), |
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| 150 | thePDGcode(0) |
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| 151 | { |
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| 152 | // 4-momentum vector (Lorentz vecotr) is given |
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[1315] | 153 | Set4Momentum(aParticleMomentum); |
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[824] | 154 | } |
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| 155 | |
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[1340] | 156 | G4DynamicParticle::G4DynamicParticle(const G4ParticleDefinition * aParticleDefinition, |
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[824] | 157 | G4double totalEnergy, |
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| 158 | const G4ThreeVector &aParticleMomentum): |
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| 159 | theParticleDefinition(aParticleDefinition), |
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[1315] | 160 | theKineticEnergy(0.0), |
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[824] | 161 | theProperTime(0.0), |
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[1315] | 162 | theDynamicalMass(aParticleDefinition->GetPDGMass()), |
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| 163 | theDynamicalCharge(aParticleDefinition->GetPDGCharge()), |
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| 164 | theDynamicalSpin(aParticleDefinition->GetPDGSpin()), |
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| 165 | theDynamicalMagneticMoment(aParticleDefinition->GetPDGMagneticMoment()), |
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| 166 | theElectronOccupancy(0), |
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[824] | 167 | thePreAssignedDecayProducts(0), |
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| 168 | thePreAssignedDecayTime(-1.0), |
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| 169 | verboseLevel(1), |
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| 170 | primaryParticle(0), |
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| 171 | thePDGcode(0) |
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| 172 | { |
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[1315] | 173 | // total energy and 3-dim momentum are given |
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[824] | 174 | G4double pModule2 = aParticleMomentum.mag2(); |
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| 175 | if (pModule2>0.0) { |
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| 176 | G4double mass2 = totalEnergy*totalEnergy - pModule2; |
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[1196] | 177 | if(mass2 < EnergyMomentumRelationAllowance*EnergyMomentumRelationAllowance) { |
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[824] | 178 | theDynamicalMass = 0.; |
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[1315] | 179 | SetMomentumDirection(aParticleMomentum.unit()); |
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[824] | 180 | SetKineticEnergy(totalEnergy); |
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| 181 | } else { |
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| 182 | theDynamicalMass = std::sqrt(mass2); |
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[1315] | 183 | SetMomentum(aParticleMomentum); |
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[824] | 184 | } |
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| 185 | } else { |
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| 186 | SetMomentumDirection(1.0,0.0,0.0); |
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| 187 | SetKineticEnergy(0.0); |
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| 188 | } |
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| 189 | } |
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| 190 | |
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| 191 | //////////////////// |
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[1315] | 192 | G4DynamicParticle::G4DynamicParticle(const G4DynamicParticle &right): |
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| 193 | theMomentumDirection(right.theMomentumDirection), |
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| 194 | theParticleDefinition(right.theParticleDefinition), |
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| 195 | thePolarization(right.thePolarization), |
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| 196 | theKineticEnergy(right.theKineticEnergy), |
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| 197 | theProperTime(0.0), |
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| 198 | theDynamicalMass(right.theDynamicalMass), |
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| 199 | theDynamicalCharge(right.theDynamicalCharge), |
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| 200 | theDynamicalSpin(right.theDynamicalSpin), |
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| 201 | theDynamicalMagneticMoment(right.theDynamicalMagneticMoment), |
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| 202 | theElectronOccupancy(0), |
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| 203 | thePreAssignedDecayProducts(0), // Do not copy preassignedDecayProducts |
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| 204 | thePreAssignedDecayTime(-1.0), |
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| 205 | verboseLevel(right.verboseLevel), |
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| 206 | primaryParticle(right.primaryParticle), |
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| 207 | thePDGcode(right.thePDGcode) |
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[824] | 208 | { |
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[1315] | 209 | if (right.theElectronOccupancy != 0) { |
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[824] | 210 | theElectronOccupancy = |
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| 211 | new G4ElectronOccupancy(*right.theElectronOccupancy); |
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| 212 | } |
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| 213 | } |
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| 214 | |
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| 215 | //////////////////// |
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| 216 | // -- destructor ---- |
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| 217 | //////////////////// |
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| 218 | G4DynamicParticle::~G4DynamicParticle() { |
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| 219 | |
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| 220 | // delete thePreAssignedDecayProducts |
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| 221 | if (thePreAssignedDecayProducts != 0) delete thePreAssignedDecayProducts; |
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| 222 | thePreAssignedDecayProducts = 0; |
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| 223 | |
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| 224 | if (theElectronOccupancy != 0) delete theElectronOccupancy; |
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| 225 | theElectronOccupancy =0; |
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| 226 | } |
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| 227 | |
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| 228 | |
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| 229 | //////////////////// |
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| 230 | // -- operators ---- |
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| 231 | //////////////////// |
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| 232 | G4DynamicParticle & G4DynamicParticle::operator=(const G4DynamicParticle &right) |
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| 233 | { |
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| 234 | if (this != &right) { |
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[1315] | 235 | theMomentumDirection = right.theMomentumDirection; |
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| 236 | theParticleDefinition = right.theParticleDefinition; |
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| 237 | thePolarization = right.thePolarization; |
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| 238 | theKineticEnergy = right.theKineticEnergy; |
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| 239 | theProperTime = right.theProperTime; |
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| 240 | |
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[824] | 241 | theDynamicalMass = right.theDynamicalMass; |
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| 242 | theDynamicalCharge = right.theDynamicalCharge; |
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[1315] | 243 | theDynamicalSpin = right.theDynamicalSpin; |
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[824] | 244 | theDynamicalMagneticMoment = right.theDynamicalMagneticMoment; |
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| 245 | |
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| 246 | if (theElectronOccupancy != 0) delete theElectronOccupancy; |
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| 247 | if (right.theElectronOccupancy != 0){ |
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| 248 | theElectronOccupancy = |
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| 249 | new G4ElectronOccupancy(*right.theElectronOccupancy); |
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| 250 | } else { |
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| 251 | theElectronOccupancy = 0; |
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| 252 | } |
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| 253 | |
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| 254 | // thePreAssignedDecayProducts must not be copied. |
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| 255 | thePreAssignedDecayProducts = 0; |
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| 256 | thePreAssignedDecayTime = -1.0; |
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| 257 | |
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[1315] | 258 | verboseLevel = right.verboseLevel; |
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| 259 | |
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| 260 | // Primary particle information must be preserved |
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| 261 | //*** primaryParticle = right.primaryParticle; |
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| 262 | |
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| 263 | thePDGcode = right.thePDGcode; |
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[824] | 264 | } |
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| 265 | return *this; |
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| 266 | } |
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| 267 | |
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| 268 | //////////////////// |
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[1340] | 269 | void G4DynamicParticle::SetDefinition(const G4ParticleDefinition * aParticleDefinition) |
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[824] | 270 | { |
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| 271 | // remove preassigned decay |
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| 272 | if (thePreAssignedDecayProducts != 0) { |
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[1196] | 273 | #ifdef G4VERBOSE |
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| 274 | if (verboseLevel>0) { |
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[1315] | 275 | G4cerr << " G4DynamicParticle::SetDefinition()::" |
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| 276 | << "!!! Pre-assigned decay products is attached !!!! " << G4endl; |
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| 277 | G4cerr << "!!! New Definition is " << aParticleDefinition->GetParticleName() |
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[1196] | 278 | << " !!! " << G4endl; |
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[1315] | 279 | G4cerr << "!!! Pre-assigned decay products will be deleted !!!! " << G4endl; |
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[1196] | 280 | } |
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| 281 | #endif |
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[824] | 282 | delete thePreAssignedDecayProducts; |
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| 283 | } |
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| 284 | thePreAssignedDecayProducts = 0; |
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| 285 | |
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| 286 | theParticleDefinition = aParticleDefinition; |
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[1315] | 287 | |
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[824] | 288 | // set Dynamic mass/chrge |
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| 289 | theDynamicalMass = theParticleDefinition->GetPDGMass(); |
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| 290 | theDynamicalCharge = theParticleDefinition->GetPDGCharge(); |
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[1315] | 291 | theDynamicalSpin = theParticleDefinition->GetPDGSpin(); |
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[824] | 292 | theDynamicalMagneticMoment = theParticleDefinition->GetPDGMagneticMoment(); |
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| 293 | |
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| 294 | // Set electron orbits |
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| 295 | if (theElectronOccupancy != 0) delete theElectronOccupancy; |
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| 296 | theElectronOccupancy =0; |
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[1315] | 297 | //AllocateElectronOccupancy(); |
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[824] | 298 | |
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| 299 | } |
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| 300 | |
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| 301 | //////////////////// |
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| 302 | G4int G4DynamicParticle::operator==(const G4DynamicParticle &right) const |
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| 303 | { |
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| 304 | return (this == (G4DynamicParticle *) &right); |
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| 305 | } |
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| 306 | |
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| 307 | //////////////////// |
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| 308 | G4int G4DynamicParticle::operator!=(const G4DynamicParticle &right) const |
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| 309 | { |
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| 310 | return (this != (G4DynamicParticle *) &right); |
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| 311 | } |
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| 312 | |
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| 313 | |
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| 314 | |
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| 315 | //////////////////// |
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| 316 | // -- AllocateElectronOccupancy -- |
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| 317 | //////////////////// |
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| 318 | void G4DynamicParticle::AllocateElectronOccupancy() |
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| 319 | { |
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[1340] | 320 | const G4ParticleDefinition* particle = GetDefinition(); |
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[824] | 321 | |
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| 322 | if (G4IonTable::IsIon(particle)) { |
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| 323 | // Only ions can have ElectronOccupancy |
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| 324 | theElectronOccupancy = new G4ElectronOccupancy(); |
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| 325 | |
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| 326 | } else { |
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| 327 | theElectronOccupancy = 0; |
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| 328 | |
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| 329 | } |
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| 330 | } |
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| 331 | |
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| 332 | //////////////////// |
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| 333 | // -- methods for setting Energy/Momentum -- |
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| 334 | //////////////////// |
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| 335 | void G4DynamicParticle::SetMomentum(const G4ThreeVector &momentum) |
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| 336 | { |
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| 337 | G4double pModule2 = momentum.mag2(); |
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| 338 | if (pModule2>0.0) { |
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| 339 | G4double mass = theDynamicalMass; |
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[1315] | 340 | SetMomentumDirection(momentum.unit()); |
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[824] | 341 | SetKineticEnergy(std::sqrt(pModule2 + mass*mass)-mass); |
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| 342 | } else { |
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| 343 | SetMomentumDirection(1.0,0.0,0.0); |
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| 344 | SetKineticEnergy(0.0); |
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| 345 | } |
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| 346 | } |
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| 347 | |
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| 348 | //////////////////// |
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| 349 | void G4DynamicParticle::Set4Momentum(const G4LorentzVector &momentum ) |
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| 350 | { |
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[1315] | 351 | G4double pModule2 = momentum.vect().mag2(); |
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[824] | 352 | if (pModule2>0.0) { |
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[1315] | 353 | SetMomentumDirection(momentum.vect().unit()); |
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[824] | 354 | G4double totalenergy = momentum.t(); |
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| 355 | G4double mass2 = totalenergy*totalenergy - pModule2; |
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[1315] | 356 | if(mass2 < EnergyMomentumRelationAllowance*EnergyMomentumRelationAllowance) { |
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[824] | 357 | theDynamicalMass = 0.; |
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| 358 | SetKineticEnergy(totalenergy); |
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| 359 | } else { |
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| 360 | theDynamicalMass = std::sqrt(mass2); |
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| 361 | SetKineticEnergy(totalenergy-theDynamicalMass); |
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| 362 | } |
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| 363 | } else { |
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| 364 | SetMomentumDirection(1.0,0.0,0.0); |
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| 365 | SetKineticEnergy(0.0); |
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| 366 | } |
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| 367 | } |
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| 368 | |
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| 369 | |
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| 370 | //////////////////// |
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| 371 | // --- Dump Information -- |
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| 372 | //////////////////// |
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| 373 | void G4DynamicParticle::DumpInfo(G4int mode) const |
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| 374 | { |
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[1196] | 375 | #ifdef G4VERBOSE |
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[824] | 376 | if (theParticleDefinition == 0) { |
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| 377 | G4cout << " G4DynamicParticle::DumpInfo():: !!!Particle type not defined !!!! " << G4endl; |
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| 378 | } else { |
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| 379 | G4cout << " Particle type - " << theParticleDefinition->GetParticleName() << G4endl |
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| 380 | << " mass: " << GetMass()/GeV << "[GeV]" <<G4endl |
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| 381 | << " charge: " << GetCharge()/eplus << "[e]" <<G4endl |
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| 382 | << " Direction x: " << GetMomentumDirection().x() << ", y: " |
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| 383 | << GetMomentumDirection().y() << ", z: " |
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| 384 | << GetMomentumDirection().z() << G4endl |
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| 385 | << " Total Momentum = " << GetTotalMomentum() /GeV << "[GeV]" << G4endl |
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| 386 | << " Momentum: " << GetMomentum().x() /GeV << "[GeV]" << ", y: " |
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| 387 | << GetMomentum().y() /GeV << "[GeV]" << ", z: " |
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| 388 | << GetMomentum().z() /GeV << "[GeV]" << G4endl |
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| 389 | << " Total Energy = " << GetTotalEnergy()/GeV << "[GeV]" << G4endl |
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| 390 | << " Kinetic Energy = " << GetKineticEnergy() /GeV << "[GeV]" << G4endl |
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| 391 | << " MagneticMoment [MeV/T]: " << GetMagneticMoment()/MeV*tesla << G4endl |
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| 392 | << " ProperTime = " << GetProperTime() /ns << "[ns]" << G4endl; |
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| 393 | |
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| 394 | if (mode>0) { |
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| 395 | if( theElectronOccupancy != 0) { |
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| 396 | theElectronOccupancy->DumpInfo(); |
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| 397 | } |
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| 398 | } |
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| 399 | } |
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[1196] | 400 | #endif |
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[824] | 401 | } |
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| 402 | |
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| 403 | //////////////////////// |
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| 404 | G4double G4DynamicParticle::GetElectronMass() const |
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| 405 | { |
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| 406 | static G4double electronMass = 0.0; |
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| 407 | |
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| 408 | // check if electron exits and get the mass |
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| 409 | if (electronMass<=0.0) { |
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| 410 | G4ParticleDefinition* electron = G4ParticleTable::GetParticleTable()->FindParticle("e-"); |
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| 411 | if (electron == 0) { |
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| 412 | G4Exception("G4DynamicParticle: G4Electron is not defined !!"); |
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| 413 | } |
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| 414 | electronMass = electron->GetPDGMass(); |
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| 415 | } |
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| 416 | |
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| 417 | return electronMass; |
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| 418 | } |
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