[819] | 1 | // |
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| 2 | // ******************************************************************** |
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| 3 | // * License and Disclaimer * |
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| 4 | // * * |
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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| 7 | // * conditions of the Geant4 Software License, included in the file * |
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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| 9 | // * include a list of copyright holders. * |
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| 10 | // * * |
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| 11 | // * Neither the authors of this software system, nor their employing * |
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| 12 | // * institutes,nor the agencies providing financial support for this * |
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| 13 | // * work make any representation or warranty, express or implied, * |
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| 14 | // * regarding this software system or assume any liability for its * |
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| 15 | // * use. Please see the license in the file LICENSE and URL above * |
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| 16 | // * for the full disclaimer and the limitation of liability. * |
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| 17 | // * * |
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| 18 | // * This code implementation is the result of the scientific and * |
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| 19 | // * technical work of the GEANT4 collaboration. * |
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| 20 | // * By using, copying, modifying or distributing the software (or * |
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| 21 | // * any work based on the software) you agree to acknowledge its * |
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| 22 | // * use in resulting scientific publications, and indicate your * |
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| 23 | // * acceptance of all terms of the Geant4 Software license. * |
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| 24 | // ******************************************************************** |
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| 25 | // |
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| 26 | #include "globals.hh" |
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| 27 | #include "G4ios.hh" |
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| 28 | #include "G4XNNElasticLowE.hh" |
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| 29 | #include "G4KineticTrack.hh" |
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| 30 | #include "G4ParticleDefinition.hh" |
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| 31 | #include "G4PhysicsVector.hh" |
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| 32 | #include "G4PhysicsLnVector.hh" |
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| 33 | #include "G4ParticleDefinition.hh" |
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| 34 | #include "G4Proton.hh" |
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| 35 | #include "G4Neutron.hh" |
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| 36 | |
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| 37 | |
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| 38 | const G4double G4XNNElasticLowE::_lowLimit = 0.; |
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| 39 | const G4double G4XNNElasticLowE::_highLimit = 3.*GeV; |
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| 40 | |
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| 41 | // Low energy limit of the cross-section table (in GeV) |
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| 42 | // Units are assigned while filling the PhysicsVector |
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| 43 | const G4double G4XNNElasticLowE::_eMinTable = 1.8964808; |
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| 44 | const G4double G4XNNElasticLowE::_eStepLog = 0.01; |
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| 45 | |
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| 46 | // Cross-sections in mb |
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| 47 | // Units are assigned while filling the PhysicsVector |
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| 48 | |
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| 49 | const G4int G4XNNElasticLowE::tableSize = 101; |
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| 50 | |
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| 51 | const G4double G4XNNElasticLowE::ppTable[101] = |
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| 52 | { |
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| 53 | 60.00, //was 0. |
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| 54 | 33.48, 26.76, 25.26, 24.55, 23.94, 23.77, 23.72, 23.98, |
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| 55 | 25.48, 27.52, 27.72, 27.21, 25.80, 26.00, 24.32, 23.81, |
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| 56 | 24.37, 24.36, 23.13, 22.43, 21.71, 21.01, 20.83, 20.74, |
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| 57 | 20.25, 20.10, 20.59, 20.04, 20.83, 20.84, 21.07, 20.83, |
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| 58 | 20.79, 21.88, 21.15, 20.92, 19.00, 18.60, 17.30, 17.00, |
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| 59 | 16.70, 16.50, 16.20, 15.80, 15.57, 15.20, 15.00, 14.60, |
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| 60 | 14.20, 14.00, 13.80, 13.60, 13.40, 13.20, 13.00, 12.85, |
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| 61 | 12.70, 12.60, 12.50, 12.40, 12.30, 12.20, 12.10, 12.00, |
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| 62 | 11.90, 11.80, 11.75, 11.70, 11.64, 11.53, 11.41, 11.31, |
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| 63 | 11.22, 11.13, 11.05, 10.97, 10.89, 10.82, 10.75, 10.68, |
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| 64 | 10.61, 10.54, 10.48, 10.41, 10.35, 10.28, 10.22, 10.16, |
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| 65 | 10.13, 10.10, 10.08, 10.05, 10.02, 9.99, 9.96, 9.93, |
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| 66 | 9.90, 9.87, 9.84, 9.80 |
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| 67 | }; |
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| 68 | |
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| 69 | const G4double G4XNNElasticLowE::npTable[101] = |
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| 70 | { |
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| 71 | 1500.00, // was 0. |
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| 72 | 248.20, 93.38, 55.26, 44.50, 41.33, 38.48, 37.20, 35.98, |
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| 73 | 35.02, 34.47, 32.48, 30.76, 29.46, 28.53, 27.84, 27.20, |
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| 74 | 26.53, 25.95, 25.59, 25.46, 25.00, 24.49, 24.08, 23.86, |
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| 75 | 23.17, 22.70, 21.88, 21.48, 20.22, 19.75, 18.97, 18.39, |
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| 76 | 17.98, 17.63, 17.21, 16.72, 16.68, 16.58, 16.42, 16.22, |
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| 77 | 15.98, 15.71, 15.42, 15.14, 14.87, 14.65, 14.44, 14.26, |
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| 78 | 14.10, 13.95, 13.80, 13.64, 13.47, 13.29, 13.09, 12.89, |
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| 79 | 12.68, 12.47, 12.27, 12.06, 11.84, 11.76, 11.69, 11.60, |
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| 80 | 11.50, 11.41, 11.29, 11.17, 11.06, 10.93, 10.81, 10.68, |
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| 81 | 10.56, 10.44, 10.33, 10.21, 10.12, 10.03, 9.96, 9.89, |
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| 82 | 9.83, 9.80, 9.77, 9.75, 9.74, 9.74, 9.74, 9.76, |
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| 83 | 9.73, 9.70, 9.68, 9.65, 9.63, 9.60, 9.57, 9.55, |
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| 84 | 9.52, 9.49, 9.46, 9.43 |
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| 85 | }; |
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| 86 | |
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| 87 | |
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| 88 | G4XNNElasticLowE::G4XNNElasticLowE() |
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| 89 | { |
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| 90 | // Cross-sections are available in the range (_eMin,_eMax) |
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| 91 | |
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| 92 | _eMin = _eMinTable * GeV; |
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| 93 | _eMax = std::exp(std::log(_eMinTable) + tableSize * _eStepLog) * GeV; |
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| 94 | if (_eMin < _lowLimit) |
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| 95 | throw G4HadronicException(__FILE__, __LINE__, "G4XNNElasticLowE::G4XNNElasticLowE - Low energy limit not valid"); |
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| 96 | if (_highLimit > _eMax) |
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| 97 | throw G4HadronicException(__FILE__, __LINE__, "G4XNNElasticLowE::G4XNNElasticLowE - High energy limit not valid"); |
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| 98 | G4PhysicsVector* pp = new G4PhysicsLnVector(_eMin,_eMax,tableSize); |
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| 99 | |
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| 100 | _eMin = std::exp(std::log(_eMinTable)-_eStepLog)*GeV; |
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| 101 | if (_eMin < _lowLimit) |
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| 102 | throw G4HadronicException(__FILE__, __LINE__, "G4XNNElasticLowE::G4XNNElasticLowE - Low energy limit not valid"); |
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| 103 | G4PhysicsVector* np = new G4PhysicsLnVector(_eMin,_eMax,tableSize); |
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| 104 | |
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| 105 | G4int i; |
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| 106 | for (i=0; i<tableSize; i++) |
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| 107 | { |
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| 108 | G4double value = ppTable[i] * millibarn; |
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| 109 | pp->PutValue(i,value); |
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| 110 | value = npTable[i] * millibarn; |
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| 111 | np->PutValue(i,value); |
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| 112 | } |
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[1228] | 113 | xMap[G4Proton::ProtonDefinition()] = pp; |
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| 114 | xMap[G4Neutron::NeutronDefinition()] = np; |
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[819] | 115 | } |
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| 116 | |
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| 117 | |
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| 118 | G4XNNElasticLowE::~G4XNNElasticLowE() |
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| 119 | { |
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[1228] | 120 | delete xMap[G4Proton::ProtonDefinition()]; |
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| 121 | delete xMap[G4Neutron::NeutronDefinition()]; |
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[819] | 122 | } |
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| 123 | |
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| 124 | |
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| 125 | G4bool G4XNNElasticLowE::operator==(const G4XNNElasticLowE &right) const |
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| 126 | { |
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| 127 | return (this == (G4XNNElasticLowE *) &right); |
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| 128 | } |
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| 129 | |
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| 130 | |
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| 131 | G4bool G4XNNElasticLowE::operator!=(const G4XNNElasticLowE &right) const |
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| 132 | { |
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| 133 | |
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| 134 | return (this != (G4XNNElasticLowE *) &right); |
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| 135 | } |
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| 136 | |
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| 137 | |
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| 138 | G4double G4XNNElasticLowE::CrossSection(const G4KineticTrack& trk1, const G4KineticTrack& trk2) const |
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| 139 | { |
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| 140 | G4double sigma = 0.; |
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| 141 | G4double sqrtS = (trk1.Get4Momentum() + trk2.Get4Momentum()).mag(); |
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| 142 | G4bool dummy = false; |
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| 143 | |
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[1228] | 144 | G4ParticleDefinition * key = FindKeyParticle(trk1,trk2); |
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[819] | 145 | |
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[1228] | 146 | typedef std::map <G4ParticleDefinition *, G4PhysicsVector*, std::less<G4ParticleDefinition *> > StringPhysMap; |
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[819] | 147 | |
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| 148 | if (xMap.find(key)!= xMap.end()) |
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| 149 | { |
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| 150 | |
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| 151 | StringPhysMap::const_iterator iter; |
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| 152 | for (iter = xMap.begin(); iter != xMap.end(); ++iter) |
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| 153 | { |
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[1228] | 154 | G4ParticleDefinition * str = (*iter).first; |
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[819] | 155 | if (str == key) |
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| 156 | { |
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| 157 | G4PhysicsVector* physVector = (*iter).second; |
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| 158 | // G4PhysicsVector* physVector = xMap[key]; |
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| 159 | if (sqrtS >= _eMin && sqrtS <= _eMax) |
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| 160 | { |
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| 161 | sigma = physVector->GetValue(sqrtS,dummy); |
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| 162 | } else if ( sqrtS < _eMin ) |
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| 163 | { |
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| 164 | sigma = physVector->GetValue(_eMin,dummy); |
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| 165 | } |
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[1228] | 166 | //G4cout << " sqrtS / sigma " << sqrtS/GeV << " / " << |
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| 167 | // sigma/millibarn << G4endl; |
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[819] | 168 | } |
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| 169 | } |
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| 170 | } |
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| 171 | return sigma; |
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| 172 | } |
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| 173 | |
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| 174 | |
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| 175 | void G4XNNElasticLowE::Print() const |
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| 176 | { |
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| 177 | // Dump the pp cross-section table |
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| 178 | |
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| 179 | G4cout << Name() << ", pp cross-section: " << G4endl; |
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| 180 | |
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| 181 | G4bool dummy = false; |
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| 182 | G4int i; |
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[1228] | 183 | G4ParticleDefinition * key = G4Proton::ProtonDefinition(); |
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[819] | 184 | G4PhysicsVector* pp = 0; |
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| 185 | |
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[1228] | 186 | typedef std::map <G4ParticleDefinition *, G4PhysicsVector*, std::less<G4ParticleDefinition *> > StringPhysMap; |
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[819] | 187 | StringPhysMap::const_iterator iter; |
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| 188 | |
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| 189 | for (iter = xMap.begin(); iter != xMap.end(); ++iter) |
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| 190 | { |
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[1228] | 191 | G4ParticleDefinition * str = (*iter).first; |
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[819] | 192 | if (str == key) |
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| 193 | { |
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| 194 | pp = (*iter).second; |
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| 195 | } |
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| 196 | } |
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| 197 | |
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| 198 | if (pp != 0) |
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| 199 | { |
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| 200 | for (i=0; i<tableSize; i++) |
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| 201 | { |
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| 202 | G4double e = pp->GetLowEdgeEnergy(i); |
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| 203 | G4double sigma = pp->GetValue(e,dummy) / millibarn; |
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| 204 | G4cout << i << ") e = " << e / GeV << " GeV ---- Cross section = " << sigma << " mb " << G4endl; |
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| 205 | } |
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| 206 | } |
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| 207 | |
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| 208 | // Dump the np cross-section table |
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| 209 | |
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| 210 | G4cout << Name() << ", np cross-section: " << G4endl; |
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| 211 | |
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[1228] | 212 | key = G4Neutron::NeutronDefinition(); |
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[819] | 213 | G4PhysicsVector* np = 0; |
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| 214 | for (iter = xMap.begin(); iter != xMap.end(); ++iter) |
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| 215 | { |
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[1228] | 216 | G4ParticleDefinition * str = (*iter).first; |
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[819] | 217 | if (str == key) |
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| 218 | { |
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| 219 | np = (*iter).second; |
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| 220 | } |
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| 221 | } |
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| 222 | |
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| 223 | // G4PhysicsVector* np = xMap[G4Neutron::NeutronDefinition()->GetParticleName()]; |
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| 224 | |
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| 225 | if (np != 0) |
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| 226 | { |
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| 227 | for (i=0; i<tableSize; i++) |
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| 228 | { |
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| 229 | G4double e = np->GetLowEdgeEnergy(i); |
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| 230 | G4double sigma = np->GetValue(e,dummy) / millibarn; |
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| 231 | G4cout << i << ") e = " << e / GeV << " GeV ---- Cross section = " << sigma << " mb " << G4endl; |
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| 232 | } |
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| 233 | } |
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| 234 | G4VCrossSectionSource::Print(); |
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| 235 | } |
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| 236 | |
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| 237 | |
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| 238 | G4String G4XNNElasticLowE::Name() const |
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| 239 | { |
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| 240 | G4String name("NNElasticLowE"); |
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| 241 | return name; |
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| 242 | } |
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| 243 | |
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| 244 | |
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| 245 | |
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| 246 | G4bool G4XNNElasticLowE::IsValid(G4double e) const |
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| 247 | { |
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| 248 | G4bool answer = InLimits(e,_lowLimit,_highLimit); |
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| 249 | |
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| 250 | return answer; |
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| 251 | } |
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| 252 | |
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| 253 | |
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