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 | #include "globals.hh" |
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28 | #include "G4ios.hh" |
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29 | #include "G4XNNTotalLowE.hh" |
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30 | #include "G4KineticTrack.hh" |
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31 | #include "G4ParticleDefinition.hh" |
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32 | #include "G4ParticleDefinition.hh" |
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33 | #include "G4Proton.hh" |
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34 | #include "G4Neutron.hh" |
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35 | |
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36 | const G4int G4XNNTotalLowE::tableSize = 29; |
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37 | |
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38 | const G4double G4XNNTotalLowE::ss[29]= |
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39 | { |
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40 | 1877.05, 1879.58, 1882.69, 1884.8, 1886.95, 1891.89, 1895.27, 1899.9, 1904.67, 1913.36, 1921.18, 1933.56, 1949.82, 1990.11, 2025.14, 2059.03, 2101.89, 2166.47, 2201.01, 2236.36, 2289.27, 2377.17, 2426.86, 2500.18, 2602.91, 2733.62, 2925.49, 3002.71 |
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41 | }; |
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42 | |
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43 | const G4double G4XNNTotalLowE::ppTot[29] = |
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44 | { |
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45 | 2000, 600, 250, 180, 138, 92, 75, 57, 46, 35, 29.5, 25.5, 25, 24, 23.7, 25, 29, 39, 44, 47, 48, 48, 47.5, 47, 45.6, 45, 43.3, 42.9, 42.9 |
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46 | }; |
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47 | |
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48 | const G4double G4XNNTotalLowE::npTot[29] = |
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49 | { |
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50 | 4250, 1380, 770, 585, 465, 300, 232, 175, 140, 100, 80, 63, 50, 40, 35, 34, 34, 36.5, 37., 37.7, 38, 39, 39.8, 40.5, 40.7, 41, 41.2, 41.5, 41.5 |
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51 | }; |
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52 | |
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53 | G4XNNTotalLowE::G4XNNTotalLowE() |
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54 | { |
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55 | |
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56 | G4LowEXsection* pp = new G4LowEXsection(); |
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57 | G4LowEXsection* np = new G4LowEXsection(); |
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58 | |
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59 | G4int i; |
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60 | for (i=0; i<tableSize; i++) |
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61 | { |
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62 | std::pair<double,double> it; |
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63 | it.first=ss[i]; |
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64 | it.second=ppTot[i]; pp->push_back(it); |
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65 | it.second=npTot[i]; np->push_back(it); |
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66 | } |
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67 | theCrossSections[G4Proton::ProtonDefinition()] = pp; |
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68 | theCrossSections[G4Neutron::NeutronDefinition()] = np; |
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69 | } |
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70 | |
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71 | |
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72 | G4XNNTotalLowE::~G4XNNTotalLowE() |
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73 | { |
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74 | |
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75 | delete theCrossSections[G4Proton::ProtonDefinition()]; |
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76 | delete theCrossSections[G4Neutron::NeutronDefinition()]; |
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77 | } |
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78 | |
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79 | G4double G4XNNTotalLowE::CrossSection(const G4KineticTrack& trk1, const G4KineticTrack& trk2) const |
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80 | { |
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81 | G4double result = 0.; |
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82 | G4double sqrtS = (trk1.Get4Momentum() + trk2.Get4Momentum()).mag(); |
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83 | G4ParticleDefinition * key = FindKeyParticle(trk1,trk2); |
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84 | |
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85 | if (theCrossSections.find(key)!= theCrossSections.end()) |
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86 | { |
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87 | LowEMap::const_iterator iter; |
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88 | for (iter = theCrossSections.begin(); iter != theCrossSections.end(); ++iter) |
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89 | { |
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90 | if ((*iter).first == key) |
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91 | { |
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92 | result = (*iter).second->CrossSection(sqrtS); |
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93 | } |
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94 | } |
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95 | } |
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96 | else |
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97 | { |
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98 | throw G4HadronicException(__FILE__, __LINE__, "G4XNNTotalLowE: particle key out of range"); |
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99 | } |
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100 | |
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101 | return result; |
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102 | } |
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103 | |
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104 | G4String G4XNNTotalLowE::Name() const |
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105 | { |
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106 | G4String name("NNTotalLowE"); |
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107 | return name; |
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108 | } |
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109 | |
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110 | |
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111 | G4bool G4XNNTotalLowE::IsValid(G4double e) const |
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112 | { |
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113 | G4bool result = e>0&&e<3*GeV; |
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114 | return result; |
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115 | } |
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116 | |
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117 | |
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