[819] | 1 | // |
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| 2 | // ******************************************************************** |
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| 3 | // * License and Disclaimer * |
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| 4 | // * * |
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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| 7 | // * conditions of the Geant4 Software License, included in the file * |
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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| 9 | // * include a list of copyright holders. * |
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| 10 | // * * |
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| 11 | // * Neither the authors of this software system, nor their employing * |
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| 12 | // * institutes,nor the agencies providing financial support for this * |
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| 13 | // * work make any representation or warranty, express or implied, * |
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| 14 | // * regarding this software system or assume any liability for its * |
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| 15 | // * use. Please see the license in the file LICENSE and URL above * |
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| 16 | // * for the full disclaimer and the limitation of liability. * |
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| 17 | // * * |
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| 18 | // * This code implementation is the result of the scientific and * |
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| 19 | // * technical work of the GEANT4 collaboration. * |
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| 20 | // * By using, copying, modifying or distributing the software (or * |
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| 21 | // * any work based on the software) you agree to acknowledge its * |
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| 22 | // * use in resulting scientific publications, and indicate your * |
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| 23 | // * acceptance of all terms of the Geant4 Software license. * |
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| 24 | // ******************************************************************** |
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| 25 | // |
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| 26 | |
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| 27 | // Hadronic Process: Light Media Charge and/or Strangeness Exchange |
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| 28 | // J.L. Chuma, TRIUMF, 21-Feb-1997 |
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| 29 | // Last modified: 13-Mar-1997 |
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| 30 | |
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| 31 | // 11-OCT-2007 F.W. Jones: fixed coding errors in inequalities for |
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| 32 | // charge exchange occurrence in PionPlusExchange, |
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| 33 | // KaonZeroShortExchange, and NeutronExchange. |
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| 34 | |
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| 35 | #include "G4LightMedia.hh" |
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| 36 | #include "Randomize.hh" |
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| 37 | |
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| 38 | G4DynamicParticle * |
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| 39 | G4LightMedia::PionPlusExchange( |
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| 40 | const G4HadProjectile *incidentParticle, |
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| 41 | const G4Nucleus & targetNucleus ) |
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| 42 | { |
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| 43 | G4ParticleDefinition* aNeutron = G4Neutron::Neutron(); |
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| 44 | G4ParticleDefinition* aPiZero = G4PionZero::PionZero(); |
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| 45 | |
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| 46 | const G4double atomicNumber = targetNucleus.GetZ(); |
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| 47 | |
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| 48 | G4DynamicParticle* targetParticle = targetNucleus.ReturnTargetParticle(); |
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| 49 | |
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| 50 | if( targetParticle->GetDefinition() == aNeutron ) { |
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| 51 | |
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| 52 | // for pi+ n reactions, change some of the elastic cross section to pi0 p |
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| 53 | |
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| 54 | const G4double cech[] = {0.33,0.27,0.29,0.31,0.27,0.18,0.13,0.10,0.09,0.07}; |
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| 55 | G4int iplab = G4int(std::min( 9.0, incidentParticle->GetTotalMomentum()/GeV*5.0 )); |
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| 56 | if( G4UniformRand() < cech[iplab]/std::pow(atomicNumber,0.42) ) { |
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| 57 | G4DynamicParticle* resultant = new G4DynamicParticle; |
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| 58 | resultant->SetDefinition( aPiZero ); |
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| 59 | // targetParticle->SetDefinition( aProton ); |
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| 60 | delete targetParticle; |
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| 61 | return resultant; |
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| 62 | } |
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| 63 | } |
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| 64 | delete targetParticle; |
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| 65 | return (G4DynamicParticle*)NULL; |
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| 66 | } |
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| 67 | |
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| 68 | G4DynamicParticle * |
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| 69 | G4LightMedia::PionMinusExchange( |
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| 70 | const G4HadProjectile *, |
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| 71 | const G4Nucleus& ) |
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| 72 | { |
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| 73 | return (G4DynamicParticle*)NULL; |
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| 74 | } |
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| 75 | |
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| 76 | G4DynamicParticle * |
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| 77 | G4LightMedia::KaonPlusExchange( |
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| 78 | const G4HadProjectile *incidentParticle, |
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| 79 | const G4Nucleus& targetNucleus ) |
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| 80 | { |
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| 81 | G4ParticleDefinition* aNeutron = G4Neutron::Neutron(); |
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| 82 | G4ParticleDefinition* aKaonZS = G4KaonZeroShort::KaonZeroShort(); |
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| 83 | G4ParticleDefinition* aKaonZL = G4KaonZeroLong::KaonZeroLong(); |
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| 84 | |
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| 85 | const G4double atomicNumber = targetNucleus.GetZ(); |
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| 86 | |
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| 87 | G4DynamicParticle* targetParticle = targetNucleus.ReturnTargetParticle(); |
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| 88 | |
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| 89 | if( targetParticle->GetDefinition() == aNeutron ) { |
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| 90 | |
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| 91 | // for k+ n reactions, change some of the elastic cross section to k0 p |
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| 92 | |
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| 93 | const G4double cech[] = {0.33,0.27,0.29,0.31,0.27,0.18,0.13,0.10,0.09,0.07}; |
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| 94 | G4int iplab = G4int( std::min( 9.0, incidentParticle->GetTotalMomentum()/GeV*5.0 ) ); |
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| 95 | if( G4UniformRand() <= cech[iplab]/std::pow(atomicNumber,0.42) ) { |
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| 96 | G4DynamicParticle* resultant = new G4DynamicParticle; |
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| 97 | if( G4UniformRand() < 0.5 ) |
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| 98 | resultant->SetDefinition( aKaonZS ); |
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| 99 | else |
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| 100 | resultant->SetDefinition( aKaonZL ); |
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| 101 | // targetParticle->SetDefinition( aProton ); |
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| 102 | delete targetParticle; |
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| 103 | return resultant; |
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| 104 | } |
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| 105 | } |
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| 106 | delete targetParticle; |
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| 107 | return (G4DynamicParticle*)NULL; |
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| 108 | } |
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| 109 | |
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| 110 | G4DynamicParticle * |
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| 111 | G4LightMedia::KaonZeroShortExchange( |
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| 112 | const G4HadProjectile *incidentParticle, |
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| 113 | const G4Nucleus& targetNucleus ) |
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| 114 | { |
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| 115 | G4ParticleDefinition* aProton = G4Proton::Proton(); |
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| 116 | G4ParticleDefinition* aKaonPlus = G4KaonPlus::KaonPlus(); |
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| 117 | G4ParticleDefinition* aKaonZL = G4KaonZeroLong::KaonZeroLong(); |
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| 118 | |
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| 119 | const G4double atomicNumber = targetNucleus.GetZ(); |
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| 120 | |
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| 121 | G4DynamicParticle* targetParticle = targetNucleus.ReturnTargetParticle(); |
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| 122 | |
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| 123 | if( targetParticle->GetDefinition() == aProton ) { |
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| 124 | |
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| 125 | // for k0 p reactions, change some of the elastic cross section to k+ n |
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| 126 | |
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| 127 | const G4double cech[] = {0.33,0.27,0.29,0.31,0.27,0.18,0.13,0.10,0.09,0.07}; |
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| 128 | G4int iplab = G4int( std::min( 9.0, incidentParticle->GetTotalMomentum()/GeV*5.0 ) ); |
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| 129 | if( G4UniformRand() < cech[iplab]/std::pow(atomicNumber,0.42) ) { |
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| 130 | G4DynamicParticle* resultant = new G4DynamicParticle; |
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| 131 | resultant->SetDefinition( aKaonPlus ); |
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| 132 | // targetParticle->SetDefinition( aNeutron ); |
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| 133 | delete targetParticle; |
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| 134 | return resultant; |
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| 135 | } |
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| 136 | } else { |
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| 137 | if( G4UniformRand() >= 0.5 ) { |
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| 138 | G4DynamicParticle* resultant = new G4DynamicParticle; |
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| 139 | resultant->SetDefinition( aKaonZL ); |
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| 140 | delete targetParticle; |
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| 141 | return resultant; |
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| 142 | } |
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| 143 | } |
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| 144 | delete targetParticle; |
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| 145 | return (G4DynamicParticle*)NULL; |
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| 146 | } |
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| 147 | |
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| 148 | G4DynamicParticle * |
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| 149 | G4LightMedia::KaonZeroLongExchange( |
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| 150 | const G4HadProjectile *, |
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| 151 | const G4Nucleus& ) |
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| 152 | { |
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| 153 | G4ParticleDefinition* aKaonZS = G4KaonZeroShort::KaonZeroShort(); |
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| 154 | |
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| 155 | if( G4UniformRand() >= 0.5 ) { |
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| 156 | G4DynamicParticle* resultant = new G4DynamicParticle; |
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| 157 | resultant->SetDefinition( aKaonZS ); |
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| 158 | return resultant; |
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| 159 | } |
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| 160 | return (G4DynamicParticle*)NULL; |
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| 161 | } |
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| 162 | |
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| 163 | G4DynamicParticle * |
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| 164 | G4LightMedia::KaonMinusExchange( |
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| 165 | const G4HadProjectile *, |
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| 166 | const G4Nucleus& ) |
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| 167 | { |
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| 168 | return (G4DynamicParticle*)NULL; |
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| 169 | } |
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| 170 | |
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| 171 | G4DynamicParticle * |
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| 172 | G4LightMedia::ProtonExchange( |
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| 173 | const G4HadProjectile *incidentParticle, |
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| 174 | const G4Nucleus& targetNucleus ) |
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| 175 | { |
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| 176 | G4ParticleDefinition* aNeutron = G4Neutron::Neutron(); |
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| 177 | |
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| 178 | const G4double atomicNumber = targetNucleus.GetZ(); |
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| 179 | |
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| 180 | G4DynamicParticle* targetParticle = targetNucleus.ReturnTargetParticle(); |
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| 181 | |
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| 182 | if( targetParticle->GetDefinition() == aNeutron ) { |
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| 183 | const G4double cech[] = {0.50,0.45,0.40,0.35,0.30,0.25,0.06,0.04,0.005,0.}; |
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| 184 | G4int iplab = G4int( std::min( 9.0, incidentParticle->GetTotalMomentum()/GeV*2.5 ) ); |
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| 185 | if( G4UniformRand() <= cech[iplab]/std::pow(atomicNumber,0.42) ) { |
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| 186 | G4DynamicParticle* resultant = new G4DynamicParticle; |
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| 187 | resultant->SetDefinition( aNeutron ); |
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| 188 | // targetParticle->SetDefinition( aProton ); |
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| 189 | delete targetParticle; |
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| 190 | return resultant; |
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| 191 | } |
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| 192 | } |
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| 193 | delete targetParticle; |
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| 194 | return (G4DynamicParticle*)NULL; |
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| 195 | } |
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| 196 | |
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| 197 | G4DynamicParticle * |
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| 198 | G4LightMedia::AntiProtonExchange( |
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| 199 | const G4HadProjectile *incidentParticle, |
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| 200 | const G4Nucleus& targetNucleus ) |
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| 201 | { |
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| 202 | G4ParticleDefinition* aProton = G4Proton::Proton(); |
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| 203 | G4ParticleDefinition* anAntiNeutron = G4AntiNeutron::AntiNeutron(); |
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| 204 | |
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| 205 | const G4double atomicNumber = targetNucleus.GetZ(); |
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| 206 | |
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| 207 | G4DynamicParticle* targetParticle = targetNucleus.ReturnTargetParticle(); |
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| 208 | |
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| 209 | if( targetParticle->GetDefinition() == aProton ) { |
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| 210 | const G4double cech[] = {0.50,0.45,0.40,0.35,0.30,0.25,0.06,0.04,0.005,0.}; |
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| 211 | G4int iplab = G4int( std::min( 9.0, incidentParticle->GetTotalMomentum()/GeV*10.0 ) ); |
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| 212 | if( G4UniformRand() <= cech[iplab]/std::pow(atomicNumber,0.75) ) { |
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| 213 | G4DynamicParticle* resultant = new G4DynamicParticle; |
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| 214 | resultant->SetDefinition( anAntiNeutron ); |
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| 215 | // targetParticle->SetDefinition( aNeutron ); |
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| 216 | delete targetParticle; |
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| 217 | return resultant; |
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| 218 | } |
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| 219 | } |
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| 220 | delete targetParticle; |
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| 221 | return (G4DynamicParticle*)NULL; |
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| 222 | } |
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| 223 | |
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| 224 | G4DynamicParticle * |
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| 225 | G4LightMedia::NeutronExchange( |
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| 226 | const G4HadProjectile *incidentParticle, |
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| 227 | const G4Nucleus& targetNucleus ) |
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| 228 | { |
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| 229 | G4ParticleDefinition* aProton = G4Proton::Proton(); |
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| 230 | |
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| 231 | const G4double atomicNumber = targetNucleus.GetZ(); |
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| 232 | |
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| 233 | G4DynamicParticle* targetParticle = targetNucleus.ReturnTargetParticle(); |
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| 234 | |
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| 235 | if( targetParticle->GetDefinition() == aProton ) { |
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| 236 | const G4double cech[] = {0.50,0.45,0.40,0.35,0.30,0.25,0.06,0.04,0.005,0.}; |
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| 237 | G4int iplab = G4int( std::min( 9.0, incidentParticle->GetTotalMomentum()/GeV*2.5 ) ); |
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| 238 | if( G4UniformRand() < cech[iplab]/std::pow(atomicNumber,0.42) ) { |
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| 239 | G4DynamicParticle* resultant = new G4DynamicParticle; |
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| 240 | resultant->SetDefinition( aProton ); |
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| 241 | // targetParticle->SetDefinition( aNeutron ); |
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| 242 | delete targetParticle; |
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| 243 | return resultant; |
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| 244 | } |
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| 245 | } |
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| 246 | delete targetParticle; |
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| 247 | return (G4DynamicParticle*)NULL; |
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| 248 | } |
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| 249 | |
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| 250 | G4DynamicParticle * |
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| 251 | G4LightMedia::AntiNeutronExchange( |
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| 252 | const G4HadProjectile *incidentParticle, |
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| 253 | const G4Nucleus& targetNucleus ) |
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| 254 | { |
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| 255 | G4ParticleDefinition* aNeutron = G4Neutron::Neutron(); |
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| 256 | G4ParticleDefinition* anAntiProton = G4AntiProton::AntiProton(); |
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| 257 | |
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| 258 | const G4double atomicNumber = targetNucleus.GetZ(); |
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| 259 | |
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| 260 | G4DynamicParticle* targetParticle = targetNucleus.ReturnTargetParticle(); |
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| 261 | |
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| 262 | if( targetParticle->GetDefinition() == aNeutron ) { |
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| 263 | const G4double cech[] = {0.50,0.45,0.40,0.35,0.30,0.25,0.06,0.04,0.005,0.0}; |
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| 264 | G4int iplab = std::min( 9, G4int( incidentParticle->GetTotalMomentum()/GeV*2.5 ) ); |
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| 265 | if( G4UniformRand() <= cech[iplab]/std::pow(atomicNumber,0.75) ) { |
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| 266 | G4DynamicParticle* resultant = new G4DynamicParticle; |
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| 267 | resultant->SetDefinition( anAntiProton ); |
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| 268 | // targetParticle->SetDefinition( aProton ); |
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| 269 | delete targetParticle; |
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| 270 | return resultant; |
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| 271 | } |
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| 272 | } |
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| 273 | delete targetParticle; |
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| 274 | return (G4DynamicParticle*)NULL; |
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| 275 | } |
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| 276 | |
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| 277 | G4DynamicParticle * |
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| 278 | G4LightMedia::LambdaExchange( |
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| 279 | const G4HadProjectile *incidentParticle, |
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| 280 | const G4Nucleus& targetNucleus ) |
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| 281 | { |
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| 282 | G4ParticleDefinition* aNeutron = G4Neutron::Neutron(); |
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| 283 | G4ParticleDefinition* aProton = G4Proton::Proton(); |
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| 284 | G4ParticleDefinition* aSigmaPlus = G4SigmaPlus::SigmaPlus(); |
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| 285 | G4ParticleDefinition* aSigmaMinus = G4SigmaMinus::SigmaMinus(); |
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| 286 | G4ParticleDefinition* aSigmaZero = G4SigmaZero::SigmaZero(); |
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| 287 | |
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| 288 | const G4double atomicNumber = targetNucleus.GetZ(); |
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| 289 | |
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| 290 | G4DynamicParticle* targetParticle = targetNucleus.ReturnTargetParticle(); |
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| 291 | |
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| 292 | const G4double cech[] = {0.50,0.45,0.40,0.35,0.30,0.25,0.06,0.04,0.005,0.0}; |
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| 293 | G4int iplab = G4int( std::min( 9.0, incidentParticle->GetTotalMomentum()/GeV*2.5 ) ); |
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| 294 | if( G4UniformRand() <= cech[iplab]/std::pow(atomicNumber,0.42) ) { |
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| 295 | G4DynamicParticle* resultant = new G4DynamicParticle; |
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| 296 | G4int irn = G4int( G4UniformRand()/0.2 ); |
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| 297 | if( targetParticle->GetDefinition() == aNeutron ) { |
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| 298 | |
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| 299 | // LN --> S0 N, LN --> S- P, LN --> N L, LN --> N S0, LN --> P S- |
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| 300 | |
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| 301 | switch( irn ) { |
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| 302 | case 0: |
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| 303 | resultant->SetDefinition( aSigmaZero ); |
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| 304 | break; |
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| 305 | case 1: |
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| 306 | resultant->SetDefinition( aSigmaMinus ); |
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| 307 | // targetParticle->SetDefinition( aProton ); |
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| 308 | break; |
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| 309 | case 2: |
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| 310 | resultant->SetDefinition( aNeutron ); |
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| 311 | // targetParticle->SetDefinition( aLambda ); |
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| 312 | break; |
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| 313 | case 3: |
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| 314 | resultant->SetDefinition( aNeutron ); |
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| 315 | // targetParticle->SetDefinition( aSigmaZero ); |
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| 316 | break; |
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| 317 | default: |
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| 318 | resultant->SetDefinition( aProton ); |
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| 319 | // targetParticle->SetDefinition( aSigmaMinus ); |
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| 320 | break; |
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| 321 | } |
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| 322 | } else { // target particle is a proton |
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| 323 | |
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| 324 | // LP --> S+ N, LP --> S0 P, LP --> P L, LP --> P S0, LP --> N S+ |
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| 325 | |
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| 326 | switch( irn ) { |
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| 327 | case 0: |
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| 328 | resultant->SetDefinition( aSigmaPlus ); |
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| 329 | // targetParticle->SetDefinition( aNeutron ); |
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| 330 | break; |
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| 331 | case 1: |
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| 332 | resultant->SetDefinition( aSigmaZero ); |
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| 333 | break; |
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| 334 | case 2: |
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| 335 | resultant->SetDefinition( aProton ); |
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| 336 | // targetParticle->SetDefinition( aLambda ); |
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| 337 | break; |
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| 338 | case 3: |
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| 339 | resultant->SetDefinition( aProton ); |
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| 340 | // targetParticle->SetDefinition( aSigmaZero ); |
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| 341 | break; |
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| 342 | default: |
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| 343 | resultant->SetDefinition( aNeutron ); |
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| 344 | // targetParticle->SetDefinition( aSigmaPlus ); |
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| 345 | break; |
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| 346 | } |
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| 347 | } |
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| 348 | delete targetParticle; |
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| 349 | return resultant; |
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| 350 | } |
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| 351 | delete targetParticle; |
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| 352 | return (G4DynamicParticle*)NULL; |
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| 353 | } |
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| 354 | |
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| 355 | G4DynamicParticle * |
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| 356 | G4LightMedia::AntiLambdaExchange( |
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| 357 | const G4HadProjectile *incidentParticle, |
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| 358 | const G4Nucleus& targetNucleus ) |
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| 359 | { |
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| 360 | G4ParticleDefinition* aNeutron = G4Neutron::Neutron(); |
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| 361 | G4ParticleDefinition* aProton = G4Proton::Proton(); |
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| 362 | G4ParticleDefinition* anAntiSigmaPlus = G4AntiSigmaPlus::AntiSigmaPlus(); |
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| 363 | G4ParticleDefinition* anAntiSigmaMinus = G4AntiSigmaMinus::AntiSigmaMinus(); |
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| 364 | G4ParticleDefinition* anAntiSigmaZero = G4AntiSigmaZero::AntiSigmaZero(); |
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| 365 | |
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| 366 | const G4double atomicNumber = targetNucleus.GetZ(); |
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| 367 | |
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| 368 | G4DynamicParticle* targetParticle = targetNucleus.ReturnTargetParticle(); |
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| 369 | |
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| 370 | const G4double cech[] = {0.50,0.45,0.40,0.35,0.30,0.25,0.06,0.04,0.005,0.0}; |
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| 371 | G4int iplab = G4int( std::min( 9.0, incidentParticle->GetTotalMomentum()/GeV*2.5 ) ); |
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| 372 | if( G4UniformRand() <= cech[iplab]/std::pow(atomicNumber,0.42) ) { |
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| 373 | G4DynamicParticle* resultant = new G4DynamicParticle; |
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| 374 | G4int irn = G4int( G4UniformRand()/0.2 ); |
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| 375 | if( targetParticle->GetDefinition() == aNeutron ) { |
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| 376 | |
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| 377 | // LB N --> S+B P, LB N --> S0B N, LB N --> N LB, |
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| 378 | // LB N --> N S0B, LB N --> P S+B |
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| 379 | |
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| 380 | switch( irn ) { |
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| 381 | case 0: |
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| 382 | resultant->SetDefinition( anAntiSigmaPlus ); |
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| 383 | // targetParticle->SetDefinition( aProton ); |
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| 384 | break; |
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| 385 | case 1: |
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| 386 | resultant->SetDefinition( anAntiSigmaZero ); |
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| 387 | break; |
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| 388 | case 2: |
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| 389 | resultant->SetDefinition( aNeutron ); |
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| 390 | // targetParticle->SetDefinition( anAntiLambda ); |
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| 391 | break; |
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| 392 | case 3: |
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| 393 | resultant->SetDefinition( aNeutron ); |
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| 394 | // targetParticle->SetDefinition( anAntiSigmaZero ); |
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| 395 | break; |
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| 396 | default: |
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| 397 | resultant->SetDefinition( aProton ); |
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| 398 | // targetParticle->SetDefinition( anAntiSigmaPlus ); |
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| 399 | break; |
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| 400 | } |
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| 401 | } else { // target particle is a proton |
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| 402 | |
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| 403 | // LB P --> S0B P, LB P --> S-B N, LB P --> P LB, |
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| 404 | // LB P --> P S0B, LB P --> N S-B |
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| 405 | |
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| 406 | switch( irn ) { |
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| 407 | case 0: |
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| 408 | resultant->SetDefinition( anAntiSigmaZero ); |
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| 409 | break; |
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| 410 | case 1: |
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| 411 | resultant->SetDefinition( anAntiSigmaMinus ); |
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| 412 | // targetParticle->SetDefinition( aNeutron ); |
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| 413 | break; |
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| 414 | case 2: |
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| 415 | resultant->SetDefinition( aProton ); |
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| 416 | // targetParticle->SetDefinition( anAntiLambda ); |
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| 417 | break; |
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| 418 | case 3: |
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| 419 | resultant->SetDefinition( aProton ); |
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| 420 | // targetParticle->SetDefinition( anAntiSigmaZero ); |
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| 421 | break; |
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| 422 | default: |
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| 423 | resultant->SetDefinition( aNeutron ); |
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| 424 | // targetParticle->SetDefinition( anAntiSigmaMinus ); |
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| 425 | break; |
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| 426 | } |
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| 427 | } |
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| 428 | delete targetParticle; |
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| 429 | return resultant; |
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| 430 | } |
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| 431 | delete targetParticle; |
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| 432 | return (G4DynamicParticle*)NULL; |
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| 433 | } |
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| 434 | |
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| 435 | G4DynamicParticle * |
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| 436 | G4LightMedia::SigmaPlusExchange( |
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| 437 | const G4HadProjectile *incidentParticle, |
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| 438 | const G4Nucleus& targetNucleus ) |
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| 439 | { |
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| 440 | G4ParticleDefinition* aNeutron = G4Neutron::Neutron(); |
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| 441 | G4ParticleDefinition* aProton = G4Proton::Proton(); |
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| 442 | G4ParticleDefinition* aLambda = G4Lambda::Lambda(); |
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| 443 | G4ParticleDefinition* aSigmaZero = G4SigmaZero::SigmaZero(); |
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| 444 | |
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| 445 | const G4double atomicNumber = targetNucleus.GetZ(); |
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| 446 | |
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| 447 | G4DynamicParticle* targetParticle = targetNucleus.ReturnTargetParticle(); |
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| 448 | |
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| 449 | const G4double cech[] = {0.50,0.45,0.40,0.35,0.30,0.25,0.06,0.04,0.005,0.0}; |
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| 450 | G4int iplab = G4int( std::min( 9.0, incidentParticle->GetTotalMomentum()/GeV*2.5 ) ); |
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| 451 | if( G4UniformRand() <= cech[iplab]/std::pow(atomicNumber,0.42) ) { |
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| 452 | G4DynamicParticle* resultant = new G4DynamicParticle; |
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| 453 | |
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| 454 | // introduce charge and strangeness exchange reactions |
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| 455 | |
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| 456 | G4int irn = G4int( G4UniformRand()/0.2 ); |
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| 457 | if( targetParticle->GetDefinition() == aNeutron ) { |
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| 458 | |
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| 459 | // S+ N --> S0 P, S+ N --> L P, S+ N --> N S+, S+ N --> P S0, S+ N --> P L |
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| 460 | |
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| 461 | switch( irn ) { |
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| 462 | case 0: |
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| 463 | resultant->SetDefinition( aSigmaZero ); |
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| 464 | // targetParticle->SetDefinition( aProton ); |
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| 465 | break; |
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| 466 | case 1: |
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| 467 | resultant->SetDefinition( aLambda ); |
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| 468 | // targetParticle->SetDefinition( aProton ); |
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| 469 | break; |
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| 470 | case 2: |
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| 471 | resultant->SetDefinition( aNeutron ); |
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| 472 | // targetParticle->SetDefinition( aSigmaPlus ); |
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| 473 | break; |
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| 474 | case 3: |
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| 475 | resultant->SetDefinition( aProton ); |
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| 476 | // targetParticle->SetDefinition( aSigmaZero ); |
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| 477 | break; |
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| 478 | default: |
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| 479 | resultant->SetDefinition( aProton ); |
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| 480 | // targetParticle->SetDefinition( aLambda ); |
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| 481 | break; |
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| 482 | } |
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| 483 | } else { // target particle is a proton |
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| 484 | |
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| 485 | // S+ P --> P S+ |
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| 486 | |
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| 487 | resultant->SetDefinition( aProton ); |
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| 488 | // targetParticle->SetDefinition( aSigmaPlus ); |
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| 489 | } |
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| 490 | delete targetParticle; |
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| 491 | return resultant; |
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| 492 | } |
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| 493 | delete targetParticle; |
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| 494 | return (G4DynamicParticle*)NULL; |
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| 495 | } |
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| 496 | |
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| 497 | G4DynamicParticle * |
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| 498 | G4LightMedia::SigmaMinusExchange( |
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| 499 | const G4HadProjectile *incidentParticle, |
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| 500 | const G4Nucleus& targetNucleus ) |
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| 501 | { |
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| 502 | G4ParticleDefinition* aNeutron = G4Neutron::Neutron(); |
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| 503 | G4ParticleDefinition* aProton = G4Proton::Proton(); |
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| 504 | G4ParticleDefinition* aLambda = G4Lambda::Lambda(); |
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| 505 | G4ParticleDefinition* aSigmaZero = G4SigmaZero::SigmaZero(); |
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| 506 | |
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| 507 | const G4double atomicNumber = targetNucleus.GetZ(); |
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| 508 | |
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| 509 | G4DynamicParticle* targetParticle = targetNucleus.ReturnTargetParticle(); |
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| 510 | |
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| 511 | const G4double cech[] = {0.50,0.45,0.40,0.35,0.30,0.25,0.06,0.04,0.005,0.0}; |
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| 512 | G4int iplab = G4int( std::min( 9.0, incidentParticle->GetTotalMomentum()/GeV*2.5 ) ); |
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| 513 | if( G4UniformRand() <= cech[iplab]/std::pow(atomicNumber,0.42) ) { |
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| 514 | G4DynamicParticle* resultant = new G4DynamicParticle; |
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| 515 | |
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| 516 | // introduce charge and strangeness exchange reactions |
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| 517 | |
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| 518 | G4int irn = G4int( G4UniformRand()/0.2 ); |
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| 519 | if( targetParticle->GetDefinition() == aNeutron ) { |
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| 520 | |
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| 521 | // S- N --> N S- |
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| 522 | |
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| 523 | resultant->SetDefinition( aNeutron ); |
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| 524 | // targetParticle->SetDefinition( aSigmaMinus ); |
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| 525 | } else { // target particle is a proton |
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| 526 | |
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| 527 | // S+ N --> S0 P, S+ N --> L P, S+ N --> N S+, S+ N --> P S0, S+ N --> P L |
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| 528 | |
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| 529 | switch( irn ) { |
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| 530 | case 0: |
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| 531 | resultant->SetDefinition( aSigmaZero ); |
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| 532 | // targetParticle->SetDefinition( aNeutron ); |
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| 533 | break; |
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| 534 | case 1: |
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| 535 | resultant->SetDefinition( aLambda ); |
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| 536 | // targetParticle->SetDefinition( aNeutron ); |
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| 537 | break; |
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| 538 | case 2: |
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| 539 | resultant->SetDefinition( aProton ); |
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| 540 | // targetParticle->SetDefinition( aSigmaMinus ); |
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| 541 | break; |
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| 542 | case 3: |
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| 543 | resultant->SetDefinition( aNeutron ); |
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| 544 | // targetParticle->SetDefinition( aSigmaZero ); |
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| 545 | break; |
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| 546 | default: |
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| 547 | resultant->SetDefinition( aNeutron ); |
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| 548 | // targetParticle->SetDefinition( aLambda ); |
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| 549 | break; |
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| 550 | } |
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| 551 | } |
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| 552 | delete targetParticle; |
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| 553 | return resultant; |
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| 554 | } |
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| 555 | delete targetParticle; |
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| 556 | return (G4DynamicParticle*)NULL; |
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| 557 | } |
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| 558 | |
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| 559 | G4DynamicParticle * |
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| 560 | G4LightMedia::AntiSigmaPlusExchange( |
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| 561 | const G4HadProjectile *incidentParticle, |
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| 562 | const G4Nucleus& targetNucleus ) |
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| 563 | { |
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| 564 | G4ParticleDefinition* aNeutron = G4Neutron::Neutron(); |
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| 565 | G4ParticleDefinition* aProton = G4Proton::Proton(); |
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| 566 | G4ParticleDefinition* anAntiLambda = G4AntiLambda::AntiLambda(); |
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| 567 | G4ParticleDefinition* anAntiSigmaZero = G4AntiSigmaZero::AntiSigmaZero(); |
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| 568 | |
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| 569 | const G4double atomicNumber = targetNucleus.GetZ(); |
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| 570 | |
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| 571 | G4DynamicParticle* targetParticle = targetNucleus.ReturnTargetParticle(); |
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| 572 | |
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| 573 | const G4double cech[] = {0.50,0.45,0.40,0.35,0.30,0.25,0.06,0.04,0.005,0.0}; |
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| 574 | G4int iplab = G4int( std::min( 9.0, incidentParticle->GetTotalMomentum()/GeV*2.5 ) ); |
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| 575 | if( G4UniformRand() <= cech[iplab]/std::pow(atomicNumber,0.42) ) { |
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| 576 | G4DynamicParticle* resultant = new G4DynamicParticle; |
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| 577 | G4int irn = G4int( G4UniformRand()/0.2 ); |
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| 578 | if( targetParticle->GetDefinition() == aNeutron ) { |
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| 579 | |
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| 580 | // S+B N --> N S+B |
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| 581 | |
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| 582 | resultant->SetDefinition( aNeutron ); |
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| 583 | // targetParticle->SetDefinition( anAntiSigmaPlus ); |
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| 584 | } else { // target particle is a proton |
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| 585 | |
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| 586 | // S+ N --> S0 P, S+ N --> L P, S+ N --> N S+, S+ N --> P S0, S+ N --> P L |
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| 587 | |
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| 588 | switch( irn ) { |
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| 589 | case 0: |
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| 590 | resultant->SetDefinition( anAntiLambda ); |
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| 591 | // targetParticle->SetDefinition( aNeutron ); |
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| 592 | break; |
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| 593 | case 1: |
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| 594 | resultant->SetDefinition( anAntiSigmaZero ); |
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| 595 | // targetParticle->SetDefinition( aNeutron ); |
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| 596 | break; |
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| 597 | case 2: |
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| 598 | resultant->SetDefinition( aNeutron ); |
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| 599 | // targetParticle->SetDefinition( anAntiLambda ); |
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| 600 | break; |
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| 601 | case 3: |
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| 602 | resultant->SetDefinition( aNeutron ); |
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| 603 | // targetParticle->SetDefinition( anAntiSigmaZero ); |
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| 604 | break; |
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| 605 | default: |
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| 606 | resultant->SetDefinition( aProton ); |
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| 607 | // targetParticle->SetDefinition( anAntiLambda ); |
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| 608 | break; |
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| 609 | } |
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| 610 | } |
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| 611 | delete targetParticle; |
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| 612 | return resultant; |
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| 613 | } |
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| 614 | delete targetParticle; |
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| 615 | return (G4DynamicParticle*)NULL; |
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| 616 | } |
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| 617 | |
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| 618 | G4DynamicParticle * |
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| 619 | G4LightMedia::AntiSigmaMinusExchange( |
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| 620 | const G4HadProjectile *incidentParticle, |
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| 621 | const G4Nucleus& targetNucleus ) |
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| 622 | { |
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| 623 | G4ParticleDefinition* aNeutron = G4Neutron::Neutron(); |
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| 624 | G4ParticleDefinition* aProton = G4Proton::Proton(); |
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| 625 | G4ParticleDefinition* anAntiLambda = G4AntiLambda::AntiLambda(); |
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| 626 | G4ParticleDefinition* anAntiSigmaZero = G4AntiSigmaZero::AntiSigmaZero(); |
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| 627 | |
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| 628 | const G4double atomicNumber = targetNucleus.GetZ(); |
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| 629 | |
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| 630 | G4DynamicParticle* targetParticle = targetNucleus.ReturnTargetParticle(); |
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| 631 | |
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| 632 | const G4double cech[] = {0.50,0.45,0.40,0.35,0.30,0.25,0.06,0.04,0.005,0.0}; |
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| 633 | G4int iplab = G4int( std::min( 9.0, incidentParticle->GetTotalMomentum()/GeV*2.5 ) ); |
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| 634 | if( G4UniformRand() <= cech[iplab]/std::pow(atomicNumber,0.42) ) { |
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| 635 | G4DynamicParticle* resultant = new G4DynamicParticle; |
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| 636 | G4int irn = G4int( G4UniformRand()/0.2 ); |
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| 637 | if( targetParticle->GetDefinition() == aNeutron ) { |
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| 638 | |
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| 639 | // S-B N --> LB P, S-B N --> S0B P, S-B N --> N S-B, |
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| 640 | // S-B N --> P LB, S-B N --> P S0B |
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| 641 | |
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| 642 | switch( irn ) { |
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| 643 | case 0: |
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| 644 | resultant->SetDefinition( anAntiLambda ); |
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| 645 | // targetParticle->SetDefinition( aProton ); |
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| 646 | break; |
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| 647 | case 1: |
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| 648 | resultant->SetDefinition( anAntiSigmaZero ); |
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| 649 | // targetParticle->SetDefinition( aProton ); |
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| 650 | break; |
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| 651 | case 2: |
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| 652 | resultant->SetDefinition( aNeutron ); |
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| 653 | // targetParticle->SetDefinition( anAntiSigmaMinus ); |
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| 654 | break; |
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| 655 | case 3: |
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| 656 | resultant->SetDefinition( aProton ); |
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| 657 | // targetParticle->SetDefinition( anAntiLambda ); |
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| 658 | break; |
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| 659 | default: |
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| 660 | resultant->SetDefinition( aProton ); |
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| 661 | // targetParticle->SetDefinition( anAntiSigmaZero ); |
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| 662 | break; |
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| 663 | } |
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| 664 | } else { // target particle is a proton |
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| 665 | |
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| 666 | // S-B P --> P S-B |
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| 667 | |
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| 668 | resultant->SetDefinition( aProton ); |
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| 669 | // targetParticle->SetDefinition( anAntiSigmaMinus ); |
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| 670 | } |
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| 671 | delete targetParticle; |
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| 672 | return resultant; |
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| 673 | } |
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| 674 | delete targetParticle; |
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| 675 | return (G4DynamicParticle*)NULL; |
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| 676 | } |
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| 677 | |
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| 678 | G4DynamicParticle * |
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| 679 | G4LightMedia::XiZeroExchange( |
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| 680 | const G4HadProjectile *incidentParticle, |
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| 681 | const G4Nucleus& targetNucleus ) |
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| 682 | { |
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| 683 | G4ParticleDefinition* aNeutron = G4Neutron::Neutron(); |
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| 684 | G4ParticleDefinition* aProton = G4Proton::Proton(); |
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| 685 | G4ParticleDefinition* aLambda = G4Lambda::Lambda(); |
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| 686 | G4ParticleDefinition* aSigmaZero = G4SigmaZero::SigmaZero(); |
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| 687 | G4ParticleDefinition* aSigmaMinus = G4SigmaMinus::SigmaMinus(); |
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| 688 | G4ParticleDefinition* aSigmaPlus = G4SigmaPlus::SigmaPlus(); |
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| 689 | G4ParticleDefinition* aXiMinus = G4XiMinus::XiMinus(); |
---|
| 690 | |
---|
| 691 | const G4double atomicNumber = targetNucleus.GetZ(); |
---|
| 692 | |
---|
| 693 | G4DynamicParticle* targetParticle = targetNucleus.ReturnTargetParticle(); |
---|
| 694 | |
---|
| 695 | const G4double cech[] = {0.50,0.45,0.40,0.35,0.30,0.25,0.06,0.04,0.005,0.0}; |
---|
| 696 | G4int iplab = G4int( std::min( 9.0, incidentParticle->GetTotalMomentum()/GeV*2.5 ) ); |
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| 697 | if( G4UniformRand() <= cech[iplab]/std::pow(atomicNumber,0.42) ) { |
---|
| 698 | G4DynamicParticle* resultant = new G4DynamicParticle; |
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| 699 | if( targetParticle->GetDefinition() == aNeutron ) { |
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| 700 | G4int irn = G4int( G4UniformRand()*7.0 ); |
---|
| 701 | switch( irn ) { |
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| 702 | case 0: |
---|
| 703 | resultant->SetDefinition( aSigmaZero ); |
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| 704 | // targetParticle->SetDefinition( aSigmaZero ); |
---|
| 705 | break; |
---|
| 706 | case 1: |
---|
| 707 | resultant->SetDefinition( aLambda ); |
---|
| 708 | // targetParticle->SetDefinition( aLambda ); |
---|
| 709 | break; |
---|
| 710 | case 2: |
---|
| 711 | resultant->SetDefinition( aXiMinus ); |
---|
| 712 | // targetParticle->SetDefinition( aProton ); |
---|
| 713 | break; |
---|
| 714 | case 3: |
---|
| 715 | resultant->SetDefinition( aProton ); |
---|
| 716 | // targetParticle->SetDefinition( aXiMinus ); |
---|
| 717 | break; |
---|
| 718 | case 4: |
---|
| 719 | resultant->SetDefinition( aSigmaPlus ); |
---|
| 720 | // targetParticle->SetDefinition( aSigmaMinus ); |
---|
| 721 | break; |
---|
| 722 | case 5: |
---|
| 723 | resultant->SetDefinition( aSigmaMinus ); |
---|
| 724 | // targetParticle->SetDefinition( aSigmaPlus ); |
---|
| 725 | break; |
---|
| 726 | default: |
---|
| 727 | resultant->SetDefinition( aNeutron ); |
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| 728 | // targetParticle->SetDefinition( aXiZero ); |
---|
| 729 | break; |
---|
| 730 | } |
---|
| 731 | } else { // target particle is a proton |
---|
| 732 | G4int irn = G4int( G4UniformRand()*5.0 ); |
---|
| 733 | switch( irn ) { |
---|
| 734 | case 0: |
---|
| 735 | resultant->SetDefinition( aSigmaPlus ); |
---|
| 736 | // targetParticle->SetDefinition( aSigmaZero ); |
---|
| 737 | break; |
---|
| 738 | case 1: |
---|
| 739 | resultant->SetDefinition( aSigmaZero ); |
---|
| 740 | // targetParticle->SetDefinition( aSigmaPlus ); |
---|
| 741 | break; |
---|
| 742 | case 2: |
---|
| 743 | resultant->SetDefinition( aSigmaPlus ); |
---|
| 744 | // targetParticle->SetDefinition( aLambda ); |
---|
| 745 | break; |
---|
| 746 | case 3: |
---|
| 747 | resultant->SetDefinition( aLambda ); |
---|
| 748 | // targetParticle->SetDefinition( aSigmaPlus ); |
---|
| 749 | break; |
---|
| 750 | default: |
---|
| 751 | resultant->SetDefinition( aProton ); |
---|
| 752 | // targetParticle->SetDefinition( aXiZero ); |
---|
| 753 | break; |
---|
| 754 | } |
---|
| 755 | } |
---|
| 756 | delete targetParticle; |
---|
| 757 | return resultant; |
---|
| 758 | } |
---|
| 759 | delete targetParticle; |
---|
| 760 | return (G4DynamicParticle*)NULL; |
---|
| 761 | } |
---|
| 762 | |
---|
| 763 | G4DynamicParticle * |
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| 764 | G4LightMedia::XiMinusExchange( |
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| 765 | const G4HadProjectile *incidentParticle, |
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| 766 | const G4Nucleus& targetNucleus ) |
---|
| 767 | { |
---|
| 768 | G4ParticleDefinition* aNeutron = G4Neutron::Neutron(); |
---|
| 769 | G4ParticleDefinition* aProton = G4Proton::Proton(); |
---|
| 770 | G4ParticleDefinition* aLambda = G4Lambda::Lambda(); |
---|
| 771 | G4ParticleDefinition* aSigmaZero = G4SigmaZero::SigmaZero(); |
---|
| 772 | G4ParticleDefinition* aSigmaMinus = G4SigmaMinus::SigmaMinus(); |
---|
| 773 | G4ParticleDefinition* aXiZero = G4XiZero::XiZero(); |
---|
| 774 | |
---|
| 775 | const G4double atomicNumber = targetNucleus.GetZ(); |
---|
| 776 | |
---|
| 777 | G4DynamicParticle* targetParticle = targetNucleus.ReturnTargetParticle(); |
---|
| 778 | |
---|
| 779 | const G4double cech[] = {0.50,0.45,0.40,0.35,0.30,0.25,0.06,0.04,0.005,0.0}; |
---|
| 780 | G4int iplab = G4int( std::min( 9.0, incidentParticle->GetTotalMomentum()/GeV*2.5 ) ); |
---|
| 781 | if( G4UniformRand() <= cech[iplab]/std::pow(atomicNumber,0.42) ) { |
---|
| 782 | G4DynamicParticle* resultant = new G4DynamicParticle; |
---|
| 783 | if( targetParticle->GetDefinition() == aNeutron ) { |
---|
| 784 | G4int irn = G4int( G4UniformRand()*5.0 ); |
---|
| 785 | switch( irn ) { |
---|
| 786 | case 0: |
---|
| 787 | resultant->SetDefinition( aNeutron ); |
---|
| 788 | // targetParticle->SetDefinition( aXiMinus ); |
---|
| 789 | break; |
---|
| 790 | case 1: |
---|
| 791 | resultant->SetDefinition( aSigmaZero ); |
---|
| 792 | // targetParticle->SetDefinition( aSigmaMinus ); |
---|
| 793 | break; |
---|
| 794 | case 2: |
---|
| 795 | resultant->SetDefinition( aSigmaMinus ); |
---|
| 796 | // targetParticle->SetDefinition( aSigmaZero ); |
---|
| 797 | break; |
---|
| 798 | case 3: |
---|
| 799 | resultant->SetDefinition( aLambda ); |
---|
| 800 | // targetParticle->SetDefinition( aSigmaMinus ); |
---|
| 801 | break; |
---|
| 802 | default: |
---|
| 803 | resultant->SetDefinition( aSigmaMinus ); |
---|
| 804 | // targetParticle->SetDefinition( aLambda ); |
---|
| 805 | break; |
---|
| 806 | } |
---|
| 807 | } else { // target particle is a proton |
---|
| 808 | G4int irn = G4int( G4UniformRand()*7.0 ); |
---|
| 809 | switch( irn ) { |
---|
| 810 | case 0: |
---|
| 811 | resultant->SetDefinition( aXiZero ); |
---|
| 812 | // targetParticle->SetDefinition( aNeutron ); |
---|
| 813 | break; |
---|
| 814 | case 1: |
---|
| 815 | resultant->SetDefinition( aNeutron ); |
---|
| 816 | // targetParticle->SetDefinition( aXiZero ); |
---|
| 817 | break; |
---|
| 818 | case 2: |
---|
| 819 | resultant->SetDefinition( aSigmaZero ); |
---|
| 820 | // targetParticle->SetDefinition( aSigmaZero ); |
---|
| 821 | break; |
---|
| 822 | case 3: |
---|
| 823 | resultant->SetDefinition( aLambda ); |
---|
| 824 | // targetParticle->SetDefinition( aLambda ); |
---|
| 825 | break; |
---|
| 826 | case 4: |
---|
| 827 | resultant->SetDefinition( aSigmaZero ); |
---|
| 828 | // targetParticle->SetDefinition( aLambda ); |
---|
| 829 | break; |
---|
| 830 | case 5: |
---|
| 831 | resultant->SetDefinition( aLambda ); |
---|
| 832 | // targetParticle->SetDefinition( aSigmaZero ); |
---|
| 833 | break; |
---|
| 834 | default: |
---|
| 835 | resultant->SetDefinition( aProton ); |
---|
| 836 | // targetParticle->SetDefinition( aXiMinus ); |
---|
| 837 | break; |
---|
| 838 | } |
---|
| 839 | } |
---|
| 840 | delete targetParticle; |
---|
| 841 | return resultant; |
---|
| 842 | } |
---|
| 843 | delete targetParticle; |
---|
| 844 | return (G4DynamicParticle*)NULL; |
---|
| 845 | } |
---|
| 846 | |
---|
| 847 | G4DynamicParticle * |
---|
| 848 | G4LightMedia::AntiXiZeroExchange( |
---|
| 849 | const G4HadProjectile *incidentParticle, |
---|
| 850 | const G4Nucleus& targetNucleus ) |
---|
| 851 | { |
---|
| 852 | // NOTE: The FORTRAN version of the cascade, CASAXO, simply called the |
---|
| 853 | // routine for the XiZero particle. Hence, the Exchange function |
---|
| 854 | // below is just a copy of the Exchange from the XiZero particle |
---|
| 855 | |
---|
| 856 | G4ParticleDefinition* aNeutron = G4Neutron::Neutron(); |
---|
| 857 | G4ParticleDefinition* aProton = G4Proton::Proton(); |
---|
| 858 | G4ParticleDefinition* aLambda = G4Lambda::Lambda(); |
---|
| 859 | G4ParticleDefinition* aSigmaZero = G4SigmaZero::SigmaZero(); |
---|
| 860 | G4ParticleDefinition* aSigmaMinus = G4SigmaMinus::SigmaMinus(); |
---|
| 861 | G4ParticleDefinition* aSigmaPlus = G4SigmaPlus::SigmaPlus(); |
---|
| 862 | G4ParticleDefinition* aXiMinus = G4XiMinus::XiMinus(); |
---|
| 863 | |
---|
| 864 | const G4double atomicNumber = targetNucleus.GetZ(); |
---|
| 865 | |
---|
| 866 | G4DynamicParticle* targetParticle = targetNucleus.ReturnTargetParticle(); |
---|
| 867 | |
---|
| 868 | const G4double cech[] = {0.50,0.45,0.40,0.35,0.30,0.25,0.06,0.04,0.005,0.0}; |
---|
| 869 | G4int iplab = G4int( std::min( 9.0, incidentParticle->GetTotalMomentum()/GeV*2.5 ) ); |
---|
| 870 | if( G4UniformRand() <= cech[iplab]/std::pow(atomicNumber,0.42) ) { |
---|
| 871 | G4DynamicParticle* resultant = new G4DynamicParticle; |
---|
| 872 | if( targetParticle->GetDefinition() == aNeutron ) { |
---|
| 873 | G4int irn = G4int( G4UniformRand()*7.0 ); |
---|
| 874 | switch( irn ) { |
---|
| 875 | case 0: |
---|
| 876 | resultant->SetDefinition( aSigmaZero ); |
---|
| 877 | // targetParticle->SetDefinition( aSigmaZero ); |
---|
| 878 | break; |
---|
| 879 | case 1: |
---|
| 880 | resultant->SetDefinition( aLambda ); |
---|
| 881 | // targetParticle->SetDefinition( aLambda ); |
---|
| 882 | break; |
---|
| 883 | case 2: |
---|
| 884 | resultant->SetDefinition( aXiMinus ); |
---|
| 885 | // targetParticle->SetDefinition( aProton ); |
---|
| 886 | break; |
---|
| 887 | case 3: |
---|
| 888 | resultant->SetDefinition( aProton ); |
---|
| 889 | // targetParticle->SetDefinition( aXiMinus ); |
---|
| 890 | break; |
---|
| 891 | case 4: |
---|
| 892 | resultant->SetDefinition( aSigmaPlus ); |
---|
| 893 | // targetParticle->SetDefinition( aSigmaMinus ); |
---|
| 894 | break; |
---|
| 895 | case 5: |
---|
| 896 | resultant->SetDefinition( aSigmaMinus ); |
---|
| 897 | // targetParticle->SetDefinition( aSigmaPlus ); |
---|
| 898 | break; |
---|
| 899 | default: |
---|
| 900 | resultant->SetDefinition( aNeutron ); |
---|
| 901 | // targetParticle->SetDefinition( aXiZero ); |
---|
| 902 | break; |
---|
| 903 | } |
---|
| 904 | } else { // target particle is a proton |
---|
| 905 | G4int irn = G4int( G4UniformRand()*5.0 ); |
---|
| 906 | switch( irn ) { |
---|
| 907 | case 0: |
---|
| 908 | resultant->SetDefinition( aSigmaPlus ); |
---|
| 909 | // targetParticle->SetDefinition( aSigmaZero ); |
---|
| 910 | break; |
---|
| 911 | case 1: |
---|
| 912 | resultant->SetDefinition( aSigmaZero ); |
---|
| 913 | // targetParticle->SetDefinition( aSigmaPlus ); |
---|
| 914 | break; |
---|
| 915 | case 2: |
---|
| 916 | resultant->SetDefinition( aSigmaPlus ); |
---|
| 917 | // targetParticle->SetDefinition( aLambda ); |
---|
| 918 | break; |
---|
| 919 | case 3: |
---|
| 920 | resultant->SetDefinition( aLambda ); |
---|
| 921 | // targetParticle->SetDefinition( aSigmaPlus ); |
---|
| 922 | break; |
---|
| 923 | default: |
---|
| 924 | resultant->SetDefinition( aProton ); |
---|
| 925 | // targetParticle->SetDefinition( aXiZero ); |
---|
| 926 | break; |
---|
| 927 | } |
---|
| 928 | } |
---|
| 929 | delete targetParticle; |
---|
| 930 | return resultant; |
---|
| 931 | } |
---|
| 932 | delete targetParticle; |
---|
| 933 | return (G4DynamicParticle*)NULL; |
---|
| 934 | } |
---|
| 935 | |
---|
| 936 | G4DynamicParticle * |
---|
| 937 | G4LightMedia::AntiXiMinusExchange( |
---|
| 938 | const G4HadProjectile *incidentParticle, |
---|
| 939 | const G4Nucleus& targetNucleus ) |
---|
| 940 | { |
---|
| 941 | // NOTE: The FORTRAN version of the cascade, CASAXM, simply called the |
---|
| 942 | // routine for the XiMinus particle. Hence, the Exchange function |
---|
| 943 | // below is just a copy of the Exchange from the XiMinus particle |
---|
| 944 | |
---|
| 945 | G4ParticleDefinition* aNeutron = G4Neutron::Neutron(); |
---|
| 946 | G4ParticleDefinition* aProton = G4Proton::Proton(); |
---|
| 947 | G4ParticleDefinition* aLambda = G4Lambda::Lambda(); |
---|
| 948 | G4ParticleDefinition* aSigmaZero = G4SigmaZero::SigmaZero(); |
---|
| 949 | G4ParticleDefinition* aSigmaMinus = G4SigmaMinus::SigmaMinus(); |
---|
| 950 | G4ParticleDefinition* aXiZero = G4XiZero::XiZero(); |
---|
| 951 | |
---|
| 952 | const G4double atomicNumber = targetNucleus.GetZ(); |
---|
| 953 | |
---|
| 954 | G4DynamicParticle* targetParticle = targetNucleus.ReturnTargetParticle(); |
---|
| 955 | |
---|
| 956 | const G4double cech[] = {0.50,0.45,0.40,0.35,0.30,0.25,0.06,0.04,0.005,0.0}; |
---|
| 957 | G4int iplab = G4int( std::min( 9.0, incidentParticle->GetTotalMomentum()/GeV*2.5 ) ); |
---|
| 958 | if( G4UniformRand() <= cech[iplab]/std::pow(atomicNumber,0.42) ) { |
---|
| 959 | G4DynamicParticle* resultant = new G4DynamicParticle; |
---|
| 960 | if( targetParticle->GetDefinition() == aNeutron ) { |
---|
| 961 | G4int irn = G4int( G4UniformRand()*5.0 ); |
---|
| 962 | switch( irn ) { |
---|
| 963 | case 0: |
---|
| 964 | resultant->SetDefinition( aNeutron ); |
---|
| 965 | // targetParticle->SetDefinition( aXiMinus ); |
---|
| 966 | break; |
---|
| 967 | case 1: |
---|
| 968 | resultant->SetDefinition( aSigmaZero ); |
---|
| 969 | // targetParticle->SetDefinition( aSigmaMinus ); |
---|
| 970 | break; |
---|
| 971 | case 2: |
---|
| 972 | resultant->SetDefinition( aSigmaMinus ); |
---|
| 973 | // targetParticle->SetDefinition( aSigmaZero ); |
---|
| 974 | break; |
---|
| 975 | case 3: |
---|
| 976 | resultant->SetDefinition( aLambda ); |
---|
| 977 | // targetParticle->SetDefinition( aSigmaMinus ); |
---|
| 978 | break; |
---|
| 979 | default: |
---|
| 980 | resultant->SetDefinition( aSigmaMinus ); |
---|
| 981 | // targetParticle->SetDefinition( aLambda ); |
---|
| 982 | break; |
---|
| 983 | } |
---|
| 984 | } else { // target particle is a proton |
---|
| 985 | G4int irn = G4int( G4UniformRand()*7.0 ); |
---|
| 986 | switch( irn ) { |
---|
| 987 | case 0: |
---|
| 988 | resultant->SetDefinition( aXiZero ); |
---|
| 989 | // targetParticle->SetDefinition( aNeutron ); |
---|
| 990 | break; |
---|
| 991 | case 1: |
---|
| 992 | resultant->SetDefinition( aNeutron ); |
---|
| 993 | // targetParticle->SetDefinition( aXiZero ); |
---|
| 994 | break; |
---|
| 995 | case 2: |
---|
| 996 | resultant->SetDefinition( aSigmaZero ); |
---|
| 997 | // targetParticle->SetDefinition( aSigmaZero ); |
---|
| 998 | break; |
---|
| 999 | case 3: |
---|
| 1000 | resultant->SetDefinition( aLambda ); |
---|
| 1001 | // targetParticle->SetDefinition( aLambda ); |
---|
| 1002 | break; |
---|
| 1003 | case 4: |
---|
| 1004 | resultant->SetDefinition( aSigmaZero ); |
---|
| 1005 | // targetParticle->SetDefinition( aLambda ); |
---|
| 1006 | break; |
---|
| 1007 | case 5: |
---|
| 1008 | resultant->SetDefinition( aLambda ); |
---|
| 1009 | // targetParticle->SetDefinition( aSigmaZero ); |
---|
| 1010 | break; |
---|
| 1011 | default: |
---|
| 1012 | resultant->SetDefinition( aProton ); |
---|
| 1013 | // targetParticle->SetDefinition( aXiMinus ); |
---|
| 1014 | break; |
---|
| 1015 | } |
---|
| 1016 | } |
---|
| 1017 | delete targetParticle; |
---|
| 1018 | return resultant; |
---|
| 1019 | } |
---|
| 1020 | delete targetParticle; |
---|
| 1021 | return (G4DynamicParticle*)NULL; |
---|
| 1022 | } |
---|
| 1023 | |
---|
| 1024 | G4DynamicParticle * |
---|
| 1025 | G4LightMedia::OmegaMinusExchange( |
---|
| 1026 | const G4HadProjectile *incidentParticle, |
---|
| 1027 | const G4Nucleus& targetNucleus ) |
---|
| 1028 | { |
---|
| 1029 | G4ParticleDefinition* aNeutron = G4Neutron::Neutron(); |
---|
| 1030 | G4ParticleDefinition* aProton = G4Proton::Proton(); |
---|
| 1031 | G4ParticleDefinition* aLambda = G4Lambda::Lambda(); |
---|
| 1032 | G4ParticleDefinition* aSigmaZero = G4SigmaZero::SigmaZero(); |
---|
| 1033 | G4ParticleDefinition* aSigmaMinus = G4SigmaMinus::SigmaMinus(); |
---|
| 1034 | G4ParticleDefinition* aSigmaPlus = G4SigmaPlus::SigmaPlus(); |
---|
| 1035 | G4ParticleDefinition* aXiMinus = G4XiMinus::XiMinus(); |
---|
| 1036 | G4ParticleDefinition* aXiZero = G4XiZero::XiZero(); |
---|
| 1037 | |
---|
| 1038 | const G4double atomicNumber = targetNucleus.GetZ(); |
---|
| 1039 | |
---|
| 1040 | G4DynamicParticle* targetParticle = targetNucleus.ReturnTargetParticle(); |
---|
| 1041 | |
---|
| 1042 | const G4double cech[] = {0.50,0.45,0.40,0.35,0.30,0.25,0.06,0.04,0.005,0.0}; |
---|
| 1043 | G4int iplab = G4int( std::min( 9.0, incidentParticle->GetTotalMomentum()/GeV*2.5 ) ); |
---|
| 1044 | if( G4UniformRand() <= cech[iplab]/std::pow(atomicNumber,0.42) ) { |
---|
| 1045 | G4DynamicParticle* resultant = new G4DynamicParticle; |
---|
| 1046 | |
---|
| 1047 | // introduce charge and strangeness exchange reactions |
---|
| 1048 | |
---|
| 1049 | if( targetParticle->GetDefinition() == aNeutron ) { |
---|
| 1050 | G4int irn = G4int( G4UniformRand()*7.0 ); |
---|
| 1051 | switch( irn ) { |
---|
| 1052 | case 0: |
---|
| 1053 | resultant->SetDefinition( aXiZero ); |
---|
| 1054 | // targetParticle->SetDefinition( aSigmaMinus ); |
---|
| 1055 | break; |
---|
| 1056 | case 1: |
---|
| 1057 | resultant->SetDefinition( aSigmaMinus ); |
---|
| 1058 | // targetParticle->SetDefinition( aXiZero ); |
---|
| 1059 | break; |
---|
| 1060 | case 2: |
---|
| 1061 | resultant->SetDefinition( aXiMinus ); |
---|
| 1062 | // targetParticle->SetDefinition( aLambda ); |
---|
| 1063 | break; |
---|
| 1064 | case 3: |
---|
| 1065 | resultant->SetDefinition( aLambda ); |
---|
| 1066 | // targetParticle->SetDefinition( aXiMinus ); |
---|
| 1067 | break; |
---|
| 1068 | case 4: |
---|
| 1069 | resultant->SetDefinition( aXiMinus ); |
---|
| 1070 | // targetParticle->SetDefinition( aSigmaZero ); |
---|
| 1071 | break; |
---|
| 1072 | case 5: |
---|
| 1073 | resultant->SetDefinition( aSigmaZero ); |
---|
| 1074 | // targetParticle->SetDefinition( aXiMinus ); |
---|
| 1075 | break; |
---|
| 1076 | default: |
---|
| 1077 | resultant->SetDefinition( aNeutron ); |
---|
| 1078 | // targetParticle->SetDefinition( anOmegaMinus ); |
---|
| 1079 | break; |
---|
| 1080 | } |
---|
| 1081 | } else { // target particle is a proton |
---|
| 1082 | G4int irn = G4int( G4UniformRand()*7.0 ); |
---|
| 1083 | switch( irn ) { |
---|
| 1084 | case 0: |
---|
| 1085 | resultant->SetDefinition( aXiZero ); |
---|
| 1086 | // targetParticle->SetDefinition( aSigmaZero ); |
---|
| 1087 | break; |
---|
| 1088 | case 1: |
---|
| 1089 | resultant->SetDefinition( aSigmaZero ); |
---|
| 1090 | // targetParticle->SetDefinition( aXiZero ); |
---|
| 1091 | break; |
---|
| 1092 | case 2: |
---|
| 1093 | resultant->SetDefinition( aXiZero ); |
---|
| 1094 | // targetParticle->SetDefinition( aLambda ); |
---|
| 1095 | break; |
---|
| 1096 | case 3: |
---|
| 1097 | resultant->SetDefinition( aLambda ); |
---|
| 1098 | // targetParticle->SetDefinition( aXiZero ); |
---|
| 1099 | break; |
---|
| 1100 | case 4: |
---|
| 1101 | resultant->SetDefinition( aXiMinus ); |
---|
| 1102 | // targetParticle->SetDefinition( aSigmaPlus ); |
---|
| 1103 | break; |
---|
| 1104 | case 5: |
---|
| 1105 | resultant->SetDefinition( aSigmaPlus ); |
---|
| 1106 | // targetParticle->SetDefinition( aXiMinus ); |
---|
| 1107 | break; |
---|
| 1108 | default: |
---|
| 1109 | resultant->SetDefinition( aProton ); |
---|
| 1110 | // targetParticle->SetDefinition( anOmegaMinus ); |
---|
| 1111 | break; |
---|
| 1112 | } |
---|
| 1113 | } |
---|
| 1114 | delete targetParticle; |
---|
| 1115 | return resultant; |
---|
| 1116 | } |
---|
| 1117 | delete targetParticle; |
---|
| 1118 | return (G4DynamicParticle*)NULL; |
---|
| 1119 | } |
---|
| 1120 | |
---|
| 1121 | G4DynamicParticle * |
---|
| 1122 | G4LightMedia::AntiOmegaMinusExchange( |
---|
| 1123 | const G4HadProjectile *incidentParticle, |
---|
| 1124 | const G4Nucleus& targetNucleus ) |
---|
| 1125 | { |
---|
| 1126 | // NOTE: The FORTRAN version of the cascade, CASAOM, simply called the |
---|
| 1127 | // routine for the OmegaMinus particle. Hence, the Exchange function |
---|
| 1128 | // below is just a copy of the Exchange from the OmegaMinus particle. |
---|
| 1129 | |
---|
| 1130 | G4ParticleDefinition* aNeutron = G4Neutron::Neutron(); |
---|
| 1131 | G4ParticleDefinition* aProton = G4Proton::Proton(); |
---|
| 1132 | G4ParticleDefinition* aLambda = G4Lambda::Lambda(); |
---|
| 1133 | G4ParticleDefinition* aSigmaZero = G4SigmaZero::SigmaZero(); |
---|
| 1134 | G4ParticleDefinition* aSigmaMinus = G4SigmaMinus::SigmaMinus(); |
---|
| 1135 | G4ParticleDefinition* aSigmaPlus = G4SigmaPlus::SigmaPlus(); |
---|
| 1136 | G4ParticleDefinition* aXiMinus = G4XiMinus::XiMinus(); |
---|
| 1137 | G4ParticleDefinition* aXiZero = G4XiZero::XiZero(); |
---|
| 1138 | |
---|
| 1139 | const G4double atomicNumber = targetNucleus.GetZ(); |
---|
| 1140 | |
---|
| 1141 | G4DynamicParticle* targetParticle = targetNucleus.ReturnTargetParticle(); |
---|
| 1142 | |
---|
| 1143 | const G4double cech[] = {0.50,0.45,0.40,0.35,0.30,0.25,0.06,0.04,0.005,0.0}; |
---|
| 1144 | G4int iplab = G4int( std::min( 9.0, incidentParticle->GetTotalMomentum()/GeV*2.5 ) ); |
---|
| 1145 | if( G4UniformRand() <= cech[iplab]/std::pow(atomicNumber,0.42) ) { |
---|
| 1146 | G4DynamicParticle* resultant = new G4DynamicParticle; |
---|
| 1147 | |
---|
| 1148 | // introduce charge and strangeness exchange reactions |
---|
| 1149 | |
---|
| 1150 | if( targetParticle->GetDefinition() == aNeutron ) { |
---|
| 1151 | G4int irn = G4int( G4UniformRand()*7.0 ); |
---|
| 1152 | switch( irn ) { |
---|
| 1153 | case 0: |
---|
| 1154 | resultant->SetDefinition( aXiZero ); |
---|
| 1155 | // targetParticle->SetDefinition( aSigmaMinus ); |
---|
| 1156 | break; |
---|
| 1157 | case 1: |
---|
| 1158 | resultant->SetDefinition( aSigmaMinus ); |
---|
| 1159 | // targetParticle->SetDefinition( aXiZero ); |
---|
| 1160 | break; |
---|
| 1161 | case 2: |
---|
| 1162 | resultant->SetDefinition( aXiMinus ); |
---|
| 1163 | // targetParticle->SetDefinition( aLambda ); |
---|
| 1164 | break; |
---|
| 1165 | case 3: |
---|
| 1166 | resultant->SetDefinition( aLambda ); |
---|
| 1167 | // targetParticle->SetDefinition( aXiMinus ); |
---|
| 1168 | break; |
---|
| 1169 | case 4: |
---|
| 1170 | resultant->SetDefinition( aXiMinus ); |
---|
| 1171 | // targetParticle->SetDefinition( aSigmaZero ); |
---|
| 1172 | break; |
---|
| 1173 | case 5: |
---|
| 1174 | resultant->SetDefinition( aSigmaZero ); |
---|
| 1175 | // targetParticle->SetDefinition( aXiMinus ); |
---|
| 1176 | break; |
---|
| 1177 | default: |
---|
| 1178 | resultant->SetDefinition( aNeutron ); |
---|
| 1179 | // targetParticle->SetDefinition( anOmegaMinus ); |
---|
| 1180 | break; |
---|
| 1181 | } |
---|
| 1182 | } else { // target particle is a proton |
---|
| 1183 | G4int irn = G4int( G4UniformRand()*7.0 ); |
---|
| 1184 | switch( irn ) { |
---|
| 1185 | case 0: |
---|
| 1186 | resultant->SetDefinition( aXiZero ); |
---|
| 1187 | // targetParticle->SetDefinition( aSigmaZero ); |
---|
| 1188 | break; |
---|
| 1189 | case 1: |
---|
| 1190 | resultant->SetDefinition( aSigmaZero ); |
---|
| 1191 | // targetParticle->SetDefinition( aXiZero ); |
---|
| 1192 | break; |
---|
| 1193 | case 2: |
---|
| 1194 | resultant->SetDefinition( aXiZero ); |
---|
| 1195 | // targetParticle->SetDefinition( aLambda ); |
---|
| 1196 | break; |
---|
| 1197 | case 3: |
---|
| 1198 | resultant->SetDefinition( aLambda ); |
---|
| 1199 | // targetParticle->SetDefinition( aXiZero ); |
---|
| 1200 | break; |
---|
| 1201 | case 4: |
---|
| 1202 | resultant->SetDefinition( aXiMinus ); |
---|
| 1203 | // targetParticle->SetDefinition( aSigmaPlus ); |
---|
| 1204 | break; |
---|
| 1205 | case 5: |
---|
| 1206 | resultant->SetDefinition( aSigmaPlus ); |
---|
| 1207 | // targetParticle->SetDefinition( aXiMinus ); |
---|
| 1208 | break; |
---|
| 1209 | default: |
---|
| 1210 | resultant->SetDefinition( aProton ); |
---|
| 1211 | // targetParticle->SetDefinition( anOmegaMinus ); |
---|
| 1212 | break; |
---|
| 1213 | } |
---|
| 1214 | } |
---|
| 1215 | delete targetParticle; |
---|
| 1216 | return resultant; |
---|
| 1217 | } |
---|
| 1218 | delete targetParticle; |
---|
| 1219 | return (G4DynamicParticle*)NULL; |
---|
| 1220 | } |
---|
| 1221 | |
---|
| 1222 | /* end of file */ |
---|
| 1223 | |
---|