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 | // $Id: G4NucleiModel.cc,v 1.48 2010/05/26 18:29:28 dennis Exp $ |
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26 | // Geant4 tag: $Name: geant4-09-04-beta-cand-01 $ |
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27 | // |
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28 | // 20100112 M. Kelsey -- Remove G4CascadeMomentum, use G4LorentzVector directly |
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29 | // 20100114 M. Kelsey -- Use G4ThreeVector for position |
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30 | // 20100309 M. Kelsey -- Use new generateWithRandomAngles for theta,phi stuff; |
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31 | // eliminate some unnecessary std::pow(), move ctor here |
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32 | // 20100407 M. Kelsey -- Replace std::vector<>::resize(0) with ::clear(). |
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33 | // Move output vectors from generateParticleFate() and |
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34 | // ::generateInteractionPartners() to be data members; return via |
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35 | // const-ref instead of by value. |
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36 | // 20100413 M. Kelsey -- Pass G4CollisionOutput by ref to ::collide() |
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37 | // 20100418 M. Kelsey -- Reference output particle lists via const-ref |
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38 | // 20100421 M. Kelsey -- Replace hardwired p/n masses with G4PartDef's |
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39 | // 20100517 M. Kelsey -- Use G4CascadeINterpolator for cross-section |
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40 | // calculations. use G4Cascade*Channel for total xsec in pi-N |
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41 | // N-N channels. Move absorptionCrossSection() from SpecialFunc. |
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42 | |
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43 | //#define CHC_CHECK |
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44 | |
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45 | #include "G4NucleiModel.hh" |
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46 | #include "G4CascadeInterpolator.hh" |
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47 | #include "G4CascadeNNChannel.hh" |
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48 | #include "G4CascadeNPChannel.hh" |
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49 | #include "G4CascadePPChannel.hh" |
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50 | #include "G4CascadePiMinusNChannel.hh" |
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51 | #include "G4CascadePiMinusPChannel.hh" |
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52 | #include "G4CascadePiPlusNChannel.hh" |
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53 | #include "G4CascadePiPlusPChannel.hh" |
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54 | #include "G4CascadePiZeroNChannel.hh" |
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55 | #include "G4CascadePiZeroPChannel.hh" |
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56 | #include "G4CollisionOutput.hh" |
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57 | #include "G4ElementaryParticleCollider.hh" |
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58 | #include "G4HadTmpUtil.hh" |
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59 | #include "G4InuclNuclei.hh" |
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60 | #include "G4InuclParticleNames.hh" |
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61 | #include "G4InuclSpecialFunctions.hh" |
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62 | #include "G4LorentzConvertor.hh" |
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63 | #include "G4Neutron.hh" |
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64 | #include "G4NucleiProperties.hh" |
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65 | #include "G4Proton.hh" |
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66 | |
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67 | using namespace G4InuclParticleNames; |
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68 | using namespace G4InuclSpecialFunctions; |
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69 | |
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70 | |
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71 | typedef std::vector<G4InuclElementaryParticle>::iterator particleIterator; |
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72 | |
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73 | G4NucleiModel::G4NucleiModel() : verboseLevel(0) { |
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74 | if (verboseLevel > 3) { |
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75 | G4cout << " >>> G4NucleiModel::G4NucleiModel" << G4endl; |
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76 | } |
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77 | } |
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78 | |
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79 | G4NucleiModel::G4NucleiModel(G4InuclNuclei* nuclei) : verboseLevel(0) { |
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80 | generateModel(nuclei->getA(), nuclei->getZ()); |
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81 | } |
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82 | |
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83 | |
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84 | void |
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85 | G4NucleiModel::generateModel(G4double a, G4double z) { |
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86 | if (verboseLevel > 3) { |
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87 | G4cout << " >>> G4NucleiModel::generateModel" << G4endl; |
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88 | } |
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89 | |
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90 | const G4double AU = 1.7234; |
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91 | const G4double cuu = 3.3836; |
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92 | // const G4double convertToFermis = 2.8197; |
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93 | const G4double pf_coeff = 1.932; |
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94 | const G4double pion_vp = 0.007; // in GeV |
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95 | const G4double pion_vp_small = 0.007; |
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96 | const G4double radForSmall = 8.0; // fermi |
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97 | const G4double piTimes4thirds = 4.189; // 4 Pi/3 |
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98 | const G4double mproton = G4Proton::Definition()->GetPDGMass() / GeV; |
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99 | const G4double mneutron = G4Neutron::Definition()->GetPDGMass() / GeV; |
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100 | const G4double alfa3[3] = { 0.7, 0.3, 0.01 }; // listing zone radius |
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101 | const G4double alfa6[6] = { 0.9, 0.6, 0.4, 0.2, 0.1, 0.05 }; |
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102 | |
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103 | A = a; |
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104 | Z = z; |
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105 | neutronNumber = a - z; |
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106 | protonNumber = z; |
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107 | neutronNumberCurrent = neutronNumber; |
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108 | protonNumberCurrent = protonNumber; |
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109 | |
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110 | // Set binding energies |
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111 | // G4double dm = bindingEnergy(a, z); |
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112 | G4double dm = G4NucleiProperties::GetBindingEnergy(G4lrint(a), G4lrint(z)); |
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113 | |
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114 | binding_energies.push_back(0.001 * std::fabs(G4NucleiProperties::GetBindingEnergy(G4lrint(a-1), G4lrint(z-1)) - dm)); // for P |
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115 | binding_energies.push_back(0.001 * std::fabs(G4NucleiProperties::GetBindingEnergy(G4lrint(a-1), G4lrint(z)) - dm)); // for N |
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116 | |
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117 | G4double CU = cuu*G4cbrt(a); // half-density radius * 2.8197 |
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118 | G4double D1 = CU/AU; |
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119 | G4double D = std::exp(-D1); |
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120 | G4double CU2 = 0.0; |
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121 | |
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122 | if (a > 4.5) { |
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123 | std::vector<G4double> ur; |
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124 | G4int icase = 0; |
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125 | |
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126 | if (a > 99.5) { |
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127 | number_of_zones = 6; |
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128 | ur.push_back(-D1); |
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129 | |
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130 | for (G4int i = 0; i < number_of_zones; i++) { |
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131 | G4double y = std::log((1.0 + D) / alfa6[i] - 1.0); |
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132 | zone_radii.push_back(CU + AU * y); |
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133 | ur.push_back(y); |
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134 | } |
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135 | |
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136 | } else if (a > 11.5) { |
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137 | number_of_zones = 3; |
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138 | ur.push_back(-D1); |
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139 | |
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140 | for (G4int i = 0; i < number_of_zones; i++) { |
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141 | G4double y = std::log((1.0 + D)/alfa3[i] - 1.0); |
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142 | zone_radii.push_back(CU + AU * y); |
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143 | ur.push_back(y); |
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144 | } |
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145 | |
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146 | } else { |
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147 | number_of_zones = 3; |
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148 | icase = 1; |
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149 | ur.push_back(0.0); |
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150 | |
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151 | G4double CU1 = CU * CU; |
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152 | CU2 = std::sqrt(CU1 * (1.0 - 1.0 / a) + 6.4); |
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153 | |
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154 | for (G4int i = 0; i < number_of_zones; i++) { |
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155 | G4double y = std::sqrt(-std::log(alfa3[i])); |
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156 | zone_radii.push_back(CU2 * y); |
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157 | ur.push_back(y); |
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158 | } |
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159 | } |
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160 | |
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161 | G4double tot_vol = 0.0; |
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162 | std::vector<G4double> v; |
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163 | std::vector<G4double> v1; |
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164 | |
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165 | G4int i(0); |
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166 | for (i = 0; i < number_of_zones; i++) { |
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167 | G4double v0; |
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168 | |
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169 | if (icase == 0) { |
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170 | v0 = volNumInt(ur[i], ur[i + 1], CU, D1); |
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171 | |
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172 | } else { |
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173 | v0 = volNumInt1(ur[i], ur[i + 1], CU2); |
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174 | }; |
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175 | |
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176 | v.push_back(v0); |
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177 | tot_vol += v0; |
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178 | |
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179 | v0 = zone_radii[i]*zone_radii[i]*zone_radii[i]; |
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180 | if (i > 0) v0 -= zone_radii[i-1]*zone_radii[i-1]*zone_radii[i-1]; |
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181 | |
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182 | v1.push_back(v0); |
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183 | } |
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184 | |
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185 | // Protons |
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186 | G4double dd0 = z/tot_vol/piTimes4thirds; |
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187 | std::vector<G4double> rod; |
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188 | std::vector<G4double> pf; |
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189 | std::vector<G4double> vz; |
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190 | |
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191 | for (i = 0; i < number_of_zones; i++) { |
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192 | G4double rd = dd0 * v[i] / v1[i]; |
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193 | rod.push_back(rd); |
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194 | G4double pff = pf_coeff * G4cbrt(rd); |
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195 | pf.push_back(pff); |
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196 | vz.push_back(0.5 * pff * pff / mproton + binding_energies[0]); |
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197 | } |
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198 | |
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199 | nucleon_densities.push_back(rod); |
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200 | zone_potentials.push_back(vz); |
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201 | fermi_momenta.push_back(pf); |
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202 | |
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203 | // Neutrons |
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204 | dd0 = (a - z)/tot_vol/piTimes4thirds; |
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205 | rod.clear(); |
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206 | pf.clear(); |
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207 | vz.clear(); |
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208 | |
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209 | for (i = 0; i < number_of_zones; i++) { |
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210 | G4double rd = dd0 * v[i] / v1[i]; |
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211 | rod.push_back(rd); |
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212 | G4double pff = pf_coeff * G4cbrt(rd); |
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213 | pf.push_back(pff); |
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214 | vz.push_back(0.5 * pff * pff / mneutron + binding_energies[1]); |
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215 | }; |
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216 | |
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217 | nucleon_densities.push_back(rod); |
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218 | zone_potentials.push_back(vz); |
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219 | fermi_momenta.push_back(pf); |
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220 | |
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221 | // pion stuff (primitive) |
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222 | std::vector<G4double> vp(number_of_zones, pion_vp); |
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223 | zone_potentials.push_back(vp); |
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224 | |
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225 | // kaon potential (primitive) |
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226 | std::vector<G4double> kp(number_of_zones, -0.015); |
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227 | zone_potentials.push_back(kp); |
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228 | |
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229 | // hyperon potential (primitive) |
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230 | std::vector<G4double> hp(number_of_zones, 0.03); |
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231 | zone_potentials.push_back(hp); |
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232 | |
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233 | } else { // a < 5 |
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234 | number_of_zones = 1; |
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235 | G4double smallRad = radForSmall; |
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236 | if (a == 4) smallRad *= 0.7; |
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237 | zone_radii.push_back(smallRad); |
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238 | G4double vol = 1.0 / piTimes4thirds / (zone_radii[0]*zone_radii[0]*zone_radii[0]); |
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239 | |
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240 | // proton |
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241 | std::vector<G4double> rod; |
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242 | std::vector<G4double> pf; |
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243 | std::vector<G4double> vz; |
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244 | for (G4int i = 0; i < number_of_zones; i++) { |
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245 | G4double rd = vol*z; |
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246 | rod.push_back(rd); |
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247 | G4double pff = pf_coeff * G4cbrt(rd); |
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248 | pf.push_back(pff); |
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249 | vz.push_back(0.5 * pff * pff / mproton + binding_energies[0]); |
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250 | } |
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251 | |
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252 | nucleon_densities.push_back(rod); |
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253 | zone_potentials.push_back(vz); |
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254 | fermi_momenta.push_back(pf); |
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255 | |
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256 | // neutron |
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257 | rod.clear(); |
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258 | pf.clear(); |
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259 | vz.clear(); |
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260 | for (G4int i = 0; i < number_of_zones; i++) { |
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261 | G4double rd = vol*(a-z); |
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262 | rod.push_back(rd); |
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263 | G4double pff = pf_coeff * G4cbrt(rd); |
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264 | pf.push_back(pff); |
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265 | vz.push_back(0.5 * pff * pff / mneutron + binding_energies[1]); |
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266 | } |
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267 | |
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268 | nucleon_densities.push_back(rod); |
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269 | zone_potentials.push_back(vz); |
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270 | fermi_momenta.push_back(pf); |
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271 | |
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272 | // pion (primitive) |
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273 | std::vector<G4double> vp(number_of_zones, pion_vp_small); |
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274 | zone_potentials.push_back(vp); |
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275 | |
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276 | // kaon potential (primitive) |
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277 | std::vector<G4double> kp(number_of_zones, -0.015); |
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278 | zone_potentials.push_back(kp); |
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279 | |
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280 | // hyperon potential (primitive) |
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281 | std::vector<G4double> hp(number_of_zones, 0.03); |
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282 | zone_potentials.push_back(hp); |
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283 | } |
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284 | |
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285 | nuclei_radius = zone_radii[zone_radii.size() - 1]; |
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286 | |
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287 | /* |
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288 | // Print nuclear radii and densities |
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289 | G4cout << " For A = " << a << " zone radii = "; |
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290 | for (G4int i = 0; i < number_of_zones; i++) G4cout << zone_radii[i] << " "; |
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291 | G4cout << " " << G4endl; |
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292 | |
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293 | G4cout << " proton densities: "; |
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294 | for (G4int i = 0; i < number_of_zones; i++) |
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295 | G4cout << nucleon_densities[0][i] << " "; |
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296 | G4cout << G4endl; |
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297 | |
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298 | G4cout << " neutron densities: "; |
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299 | for (G4int i = 0; i < number_of_zones; i++) |
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300 | G4cout << nucleon_densities[1][i] << " "; |
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301 | G4cout << G4endl; |
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302 | |
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303 | G4cout << " protons per shell " ; |
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304 | G4double rinner = 0.0; |
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305 | G4double router = 0.0; |
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306 | G4double shellVolume = 0.0; |
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307 | for (G4int i = 0; i < number_of_zones; i++) { // loop over zones |
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308 | router = zone_radii[i]; |
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309 | shellVolume = piTimes4thirds*(router*router*router - rinner*rinner*rinner); |
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310 | G4cout << G4lrint(shellVolume*nucleon_densities[0][i]) << " "; |
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311 | rinner = router; |
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312 | } |
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313 | G4cout << G4endl; |
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314 | |
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315 | G4cout << " neutrons per shell " ; |
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316 | rinner = 0.0; |
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317 | router = 0.0; |
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318 | shellVolume = 0.0; |
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319 | for (G4int i = 0; i < number_of_zones; i++) { // loop over zones |
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320 | router = zone_radii[i]; |
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321 | shellVolume = piTimes4thirds*(router*router*router - rinner*rinner*rinner); |
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322 | G4cout << G4lrint(shellVolume*nucleon_densities[1][i]) << " "; |
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323 | rinner = router; |
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324 | } |
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325 | G4cout << G4endl; |
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326 | */ |
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327 | } |
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328 | |
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329 | |
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330 | G4double G4NucleiModel::getFermiKinetic(G4int ip, G4int izone) const { |
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331 | G4double ekin = 0.0; |
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332 | |
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333 | if (ip < 3 && izone < number_of_zones) { // ip for proton/neutron only |
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334 | G4double pf = fermi_momenta[ip - 1][izone]; |
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335 | G4double mass = G4InuclElementaryParticle::getParticleMass(ip); |
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336 | |
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337 | ekin = std::sqrt(pf * pf + mass * mass) - mass; |
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338 | } |
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339 | return ekin; |
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340 | } |
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341 | |
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342 | |
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343 | G4double |
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344 | G4NucleiModel::volNumInt(G4double r1, G4double r2, |
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345 | G4double, G4double d1) const { |
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346 | |
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347 | if (verboseLevel > 3) { |
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348 | G4cout << " >>> G4NucleiModel::volNumInt" << G4endl; |
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349 | } |
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350 | |
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351 | const G4double au3 = 5.11864; |
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352 | const G4double epsilon = 1.0e-3; |
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353 | const G4int itry_max = 1000; |
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354 | G4double d2 = 2.0 * d1; |
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355 | G4double dr = r2 - r1; |
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356 | G4double fi = 0.5 * (r1 * (r1 + d2) / (1.0 + std::exp(r1)) + r2 * (r2 + d2) / (1.0 + std::exp(r2))); |
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357 | G4double fun1 = fi * dr; |
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358 | G4double fun; |
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359 | G4double jc = 1; |
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360 | G4double dr1 = dr; |
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361 | G4int itry = 0; |
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362 | |
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363 | while (itry < itry_max) { |
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364 | dr *= 0.5; |
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365 | itry++; |
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366 | |
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367 | G4double r = r1 - dr; |
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368 | fi = 0.0; |
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369 | G4int jc1 = G4int(std::pow(2.0, jc - 1) + 0.1); |
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370 | |
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371 | for (G4int i = 0; i < jc1; i++) { |
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372 | r += dr1; |
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373 | fi += r * (r + d2) / (1.0 + std::exp(r)); |
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374 | }; |
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375 | |
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376 | fun = 0.5 * fun1 + fi * dr; |
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377 | |
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378 | if (std::fabs((fun - fun1) / fun) > epsilon) { |
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379 | jc++; |
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380 | dr1 = dr; |
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381 | fun1 = fun; |
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382 | } else { |
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383 | break; |
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384 | } |
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385 | |
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386 | } |
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387 | |
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388 | if (verboseLevel > 2){ |
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389 | if(itry == itry_max) G4cout << " volNumInt-> n iter " << itry_max << G4endl; |
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390 | } |
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391 | |
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392 | return au3 * (fun + d1 * d1 * std::log((1.0 + std::exp(-r1)) / (1.0 + std::exp(-r2)))); |
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393 | } |
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394 | |
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395 | |
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396 | G4double |
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397 | G4NucleiModel::volNumInt1(G4double r1, G4double r2, |
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398 | G4double cu2) const { |
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399 | if (verboseLevel > 3) { |
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400 | G4cout << " >>> G4NucleiModel::volNumInt1" << G4endl; |
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401 | } |
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402 | |
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403 | const G4double epsilon = 1.0e-3; |
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404 | const G4int itry_max = 1000; |
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405 | |
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406 | G4double dr = r2 - r1; |
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407 | G4double fi = 0.5 * (r1 * r1 * std::exp(-r1 * r1) + r2 * r2 * std::exp(-r2 * r2)); |
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408 | G4double fun1 = fi * dr; |
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409 | G4double fun; |
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410 | G4double jc = 1; |
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411 | G4double dr1 = dr; |
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412 | G4int itry = 0; |
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413 | |
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414 | while (itry < itry_max) { |
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415 | dr *= 0.5; |
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416 | itry++; |
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417 | G4double r = r1 - dr; |
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418 | fi = 0.0; |
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419 | G4int jc1 = int(std::pow(2.0, jc - 1) + 0.1); |
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420 | |
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421 | for (G4int i = 0; i < jc1; i++) { |
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422 | r += dr1; |
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423 | fi += r * r * std::exp(-r * r); |
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424 | } |
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425 | |
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426 | fun = 0.5 * fun1 + fi * dr; |
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427 | |
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428 | if (std::fabs((fun - fun1) / fun) > epsilon) { |
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429 | jc++; |
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430 | dr1 = dr; |
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431 | fun1 = fun; |
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432 | |
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433 | } else { |
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434 | break; |
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435 | } |
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436 | |
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437 | } |
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438 | |
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439 | if (verboseLevel > 2){ |
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440 | if (itry == itry_max) G4cout << " volNumInt1-> n iter " << itry_max << G4endl; |
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441 | } |
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442 | |
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443 | return cu2*cu2*cu2 * fun; |
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444 | } |
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445 | |
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446 | |
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447 | void G4NucleiModel::printModel() const { |
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448 | |
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449 | if (verboseLevel > 3) { |
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450 | G4cout << " >>> G4NucleiModel::printModel" << G4endl; |
---|
451 | } |
---|
452 | |
---|
453 | G4cout << " nuclei model for A " << A << " Z " << Z << G4endl |
---|
454 | << " proton binding energy " << binding_energies[0] << |
---|
455 | " neutron binding energy " << binding_energies[1] << G4endl |
---|
456 | << " Nculei radius " << nuclei_radius << " number of zones " << |
---|
457 | number_of_zones << G4endl; |
---|
458 | |
---|
459 | for (G4int i = 0; i < number_of_zones; i++) |
---|
460 | |
---|
461 | G4cout << " zone " << i+1 << " radius " << zone_radii[i] << G4endl |
---|
462 | << " protons: density " << getDensity(1,i) << " PF " << |
---|
463 | getFermiMomentum(1,i) << " VP " << getPotential(1,i) << G4endl |
---|
464 | << " neutrons: density " << getDensity(2,i) << " PF " << |
---|
465 | getFermiMomentum(2,i) << " VP " << getPotential(2,i) << G4endl |
---|
466 | << " pions: VP " << getPotential(3,i) << G4endl; |
---|
467 | } |
---|
468 | |
---|
469 | |
---|
470 | G4LorentzVector |
---|
471 | G4NucleiModel::generateNucleonMomentum(G4int type, G4int zone) const { |
---|
472 | G4double pmod = getFermiMomentum(type, zone) * G4cbrt(inuclRndm()); |
---|
473 | G4double mass = G4InuclElementaryParticle::getParticleMass(type); |
---|
474 | |
---|
475 | return generateWithRandomAngles(pmod, mass); |
---|
476 | } |
---|
477 | |
---|
478 | |
---|
479 | G4InuclElementaryParticle |
---|
480 | G4NucleiModel::generateNucleon(G4int type, G4int zone) const { |
---|
481 | if (verboseLevel > 3) { |
---|
482 | G4cout << " >>> G4NucleiModel::generateNucleon" << G4endl; |
---|
483 | } |
---|
484 | |
---|
485 | G4LorentzVector mom = generateNucleonMomentum(type, zone); |
---|
486 | return G4InuclElementaryParticle(mom, type); |
---|
487 | } |
---|
488 | |
---|
489 | |
---|
490 | G4InuclElementaryParticle |
---|
491 | G4NucleiModel::generateQuasiDeutron(G4int type1, G4int type2, |
---|
492 | G4int zone) const { |
---|
493 | |
---|
494 | if (verboseLevel > 3) { |
---|
495 | G4cout << " >>> G4NucleiModel::generateQuasiDeutron" << G4endl; |
---|
496 | } |
---|
497 | |
---|
498 | // Quasideuteron consists of an unbound but associated nucleon pair |
---|
499 | |
---|
500 | // FIXME: Why generate two separate nucleon momenta (randomly!) and |
---|
501 | // add them, instead of just throwing a net momentum for the |
---|
502 | // dinulceon state? And why do I have to capture the two |
---|
503 | // return values into local variables? |
---|
504 | G4LorentzVector mom1 = generateNucleonMomentum(type1, zone); |
---|
505 | G4LorentzVector mom2 = generateNucleonMomentum(type2, zone); |
---|
506 | G4LorentzVector dmom = mom1+mom2; |
---|
507 | |
---|
508 | G4int dtype = 0; |
---|
509 | if (type1*type2 == pro*pro) dtype = 111; |
---|
510 | else if (type1*type2 == pro*neu) dtype = 112; |
---|
511 | else if (type1*type2 == neu*neu) dtype = 122; |
---|
512 | |
---|
513 | return G4InuclElementaryParticle(dmom, dtype); |
---|
514 | } |
---|
515 | |
---|
516 | |
---|
517 | void |
---|
518 | G4NucleiModel::generateInteractionPartners(G4CascadParticle& cparticle) { |
---|
519 | if (verboseLevel > 3) { |
---|
520 | G4cout << " >>> G4NucleiModel::generateInteractionPartners" << G4endl; |
---|
521 | } |
---|
522 | |
---|
523 | const G4double pi4by3 = 4.1887903; // 4 Pi / 3 |
---|
524 | const G4double small = 1.0e-10; |
---|
525 | const G4double huge_num = 50.0; |
---|
526 | const G4double pn_spec = 1.0; |
---|
527 | |
---|
528 | //const G4double pn_spec = 0.5; |
---|
529 | |
---|
530 | //const G4double young_cut = std::sqrt(10.0) * 0.5; |
---|
531 | //const G4double young_cut = std::sqrt(10.0) * 0.45; |
---|
532 | const G4double young_cut = std::sqrt(10.0) * 0.25; |
---|
533 | //const G4double young_cut = std::sqrt(10.0) * 0.2; |
---|
534 | //const G4double young_cut = std::sqrt(10.0) * 0.1; |
---|
535 | //const G4double young_cut = 0.0; |
---|
536 | |
---|
537 | thePartners.clear(); // Reset buffer for next cycle |
---|
538 | |
---|
539 | G4int ptype = cparticle.getParticle().type(); |
---|
540 | G4int zone = cparticle.getCurrentZone(); |
---|
541 | G4double pmass = cparticle.getParticle().getMass(); |
---|
542 | G4LorentzVector pmom = cparticle.getParticle().getMomentum(); |
---|
543 | G4double r_in; |
---|
544 | G4double r_out; |
---|
545 | |
---|
546 | if (zone == number_of_zones) { // particle is outside |
---|
547 | r_in = nuclei_radius; |
---|
548 | r_out = 0.0; |
---|
549 | |
---|
550 | } else if (zone == 0) { // particle is outside core |
---|
551 | r_in = 0.0; |
---|
552 | r_out = zone_radii[0]; |
---|
553 | |
---|
554 | } else { |
---|
555 | r_in = zone_radii[zone - 1]; |
---|
556 | r_out = zone_radii[zone]; |
---|
557 | }; |
---|
558 | |
---|
559 | G4double path = cparticle.getPathToTheNextZone(r_in, r_out); |
---|
560 | |
---|
561 | if (verboseLevel > 2){ |
---|
562 | G4cout << " r_in " << r_in << " r_out " << r_out << " path " << path << G4endl; |
---|
563 | } |
---|
564 | |
---|
565 | if (path < -small) { // something wrong |
---|
566 | return; |
---|
567 | |
---|
568 | } else if (std::fabs(path) < small) { // just on the boundary |
---|
569 | path = 0.0; |
---|
570 | |
---|
571 | G4InuclElementaryParticle particle; // Dummy -- no type or momentum |
---|
572 | thePartners.push_back(partner(particle, path)); |
---|
573 | |
---|
574 | } else { // normal case |
---|
575 | G4LorentzConvertor dummy_convertor; |
---|
576 | dummy_convertor.setBullet(pmom, pmass); |
---|
577 | |
---|
578 | for (G4int ip = 1; ip < 3; ip++) { |
---|
579 | G4InuclElementaryParticle particle = generateNucleon(ip, zone); |
---|
580 | dummy_convertor.setTarget(particle.getMomentum(), particle.getMass()); |
---|
581 | G4double ekin = dummy_convertor.getKinEnergyInTheTRS(); |
---|
582 | |
---|
583 | // Total cross section converted from mb to fm**2 |
---|
584 | G4double csec = totalCrossSection(ekin, ptype * ip); |
---|
585 | |
---|
586 | if(verboseLevel > 2){ |
---|
587 | G4cout << " ip " << ip << " ekin " << ekin << " csec " << csec << G4endl; |
---|
588 | } |
---|
589 | |
---|
590 | G4double dens = nucleon_densities[ip - 1][zone]; |
---|
591 | G4double rat = getRatio(ip); |
---|
592 | G4double pw = -path * dens * csec * rat; |
---|
593 | |
---|
594 | if (pw < -huge_num) pw = -huge_num; |
---|
595 | pw = 1.0 - std::exp(pw); |
---|
596 | |
---|
597 | if (verboseLevel > 2){ |
---|
598 | G4cout << " pw " << pw << " rat " << rat << G4endl; |
---|
599 | } |
---|
600 | |
---|
601 | G4double spath = path; |
---|
602 | |
---|
603 | if (inuclRndm() < pw) { |
---|
604 | spath = -1.0 / dens / csec / rat * std::log(1.0 - pw * inuclRndm()); |
---|
605 | if (cparticle.young(young_cut, spath)) spath = path; |
---|
606 | |
---|
607 | if (verboseLevel > 2){ |
---|
608 | G4cout << " ip " << ip << " spath " << spath << G4endl; |
---|
609 | } |
---|
610 | |
---|
611 | }; |
---|
612 | if (spath < path) thePartners.push_back(partner(particle, spath)); |
---|
613 | }; |
---|
614 | |
---|
615 | if (verboseLevel > 2){ |
---|
616 | G4cout << " after nucleons " << thePartners.size() << " path " << path << G4endl; |
---|
617 | } |
---|
618 | |
---|
619 | if (cparticle.getParticle().pion()) { // absorption possible |
---|
620 | if (verboseLevel > 2) { |
---|
621 | G4cout << " trying quasi-deuterons with bullet: "; |
---|
622 | cparticle.getParticle().printParticle(); |
---|
623 | } |
---|
624 | |
---|
625 | std::vector<G4InuclElementaryParticle> qdeutrons(3); |
---|
626 | std::vector<G4double> acsecs(3); |
---|
627 | |
---|
628 | G4double tot_abs_csec = 0.0; |
---|
629 | G4double abs_sec; |
---|
630 | G4double vol = zone_radii[zone]*zone_radii[zone]*zone_radii[zone]; |
---|
631 | |
---|
632 | if (zone > 0) vol -= zone_radii[zone-1]*zone_radii[zone-1]*zone_radii[zone-1]; |
---|
633 | vol *= pi4by3; |
---|
634 | |
---|
635 | G4double rat = getRatio(1); |
---|
636 | G4double rat1 = getRatio(2); |
---|
637 | |
---|
638 | G4InuclElementaryParticle ppd = generateQuasiDeutron(1, 1, zone); |
---|
639 | |
---|
640 | if (ptype == 7 || ptype == 5) { |
---|
641 | dummy_convertor.setTarget(ppd.getMomentum(), ppd.getMass()); |
---|
642 | |
---|
643 | G4double ekin = dummy_convertor.getKinEnergyInTheTRS(); |
---|
644 | |
---|
645 | if (verboseLevel > 2) { |
---|
646 | G4cout << " ptype=" << ptype << " using pp target" << G4endl; |
---|
647 | ppd.printParticle(); |
---|
648 | } |
---|
649 | |
---|
650 | abs_sec = absorptionCrossSection(ekin, ptype); |
---|
651 | abs_sec *= nucleon_densities[0][zone] * nucleon_densities[0][zone]* |
---|
652 | rat * rat * vol; |
---|
653 | |
---|
654 | } else { |
---|
655 | abs_sec = 0.0; |
---|
656 | }; |
---|
657 | |
---|
658 | // abs_sec = 0.0; |
---|
659 | tot_abs_csec += abs_sec; |
---|
660 | acsecs.push_back(abs_sec); |
---|
661 | qdeutrons.push_back(ppd); |
---|
662 | |
---|
663 | G4InuclElementaryParticle npd = generateQuasiDeutron(1, 2, zone); |
---|
664 | |
---|
665 | dummy_convertor.setTarget(npd.getMomentum(), npd.getMass()); |
---|
666 | |
---|
667 | G4double ekin = dummy_convertor.getKinEnergyInTheTRS(); |
---|
668 | |
---|
669 | if (verboseLevel > 2) { |
---|
670 | G4cout << " using np target" << G4endl; |
---|
671 | npd.printParticle(); |
---|
672 | } |
---|
673 | |
---|
674 | abs_sec = absorptionCrossSection(ekin, ptype); |
---|
675 | abs_sec *= pn_spec * nucleon_densities[0][zone] * nucleon_densities[1][zone] * |
---|
676 | rat * rat1 * vol; |
---|
677 | tot_abs_csec += abs_sec; |
---|
678 | acsecs.push_back(abs_sec); |
---|
679 | qdeutrons.push_back(npd); |
---|
680 | |
---|
681 | G4InuclElementaryParticle nnd = generateQuasiDeutron(2, 2, zone); |
---|
682 | |
---|
683 | if (ptype == 7 || ptype == 3) { |
---|
684 | dummy_convertor.setTarget(nnd.getMomentum(), nnd.getMass()); |
---|
685 | |
---|
686 | G4double ekin = dummy_convertor.getKinEnergyInTheTRS(); |
---|
687 | |
---|
688 | if (verboseLevel > 2) { |
---|
689 | G4cout << " ptype=" << ptype << " using nn target" << G4endl; |
---|
690 | nnd.printParticle(); |
---|
691 | } |
---|
692 | |
---|
693 | abs_sec = absorptionCrossSection(ekin, ptype); |
---|
694 | abs_sec *= nucleon_densities[1][zone] * nucleon_densities[1][zone] * |
---|
695 | rat1 * rat1 * vol; |
---|
696 | |
---|
697 | } else { |
---|
698 | abs_sec = 0.0; |
---|
699 | }; |
---|
700 | |
---|
701 | // abs_sec = 0.0; |
---|
702 | tot_abs_csec += abs_sec; |
---|
703 | acsecs.push_back(abs_sec); |
---|
704 | qdeutrons.push_back(nnd); |
---|
705 | |
---|
706 | if (verboseLevel > 2){ |
---|
707 | G4cout << " rod1 " << acsecs[0] << " rod2 " << acsecs[1] |
---|
708 | << " rod3 " << acsecs[2] << G4endl; |
---|
709 | } |
---|
710 | |
---|
711 | if (tot_abs_csec > small) { |
---|
712 | |
---|
713 | G4double pw = -path * tot_abs_csec; |
---|
714 | |
---|
715 | if (pw < -huge_num) pw = -huge_num; |
---|
716 | pw = 1.0 - std::exp(pw); |
---|
717 | |
---|
718 | if (verboseLevel > 2){ |
---|
719 | G4cout << " pw " << pw << G4endl; |
---|
720 | } |
---|
721 | |
---|
722 | G4double apath = path; |
---|
723 | |
---|
724 | if (inuclRndm() < pw) |
---|
725 | apath = -1.0 / tot_abs_csec * std::log(1.0 - pw * inuclRndm()); |
---|
726 | |
---|
727 | if (cparticle.young(young_cut, apath)) apath = path; |
---|
728 | |
---|
729 | if(verboseLevel > 2){ |
---|
730 | G4cout << " apath " << apath << " path " << path << G4endl; |
---|
731 | } |
---|
732 | |
---|
733 | if (apath < path) { // chose the qdeutron |
---|
734 | |
---|
735 | G4double sl = inuclRndm() * tot_abs_csec; |
---|
736 | G4double as = 0.0; |
---|
737 | |
---|
738 | for (G4int i = 0; i < 3; i++) { |
---|
739 | as += acsecs[i]; |
---|
740 | |
---|
741 | if (sl < as) { |
---|
742 | |
---|
743 | if (verboseLevel > 2){ |
---|
744 | G4cout << " deut type " << i << G4endl; |
---|
745 | } |
---|
746 | |
---|
747 | thePartners.push_back(partner(qdeutrons[i], apath)); |
---|
748 | |
---|
749 | break; |
---|
750 | }; |
---|
751 | }; |
---|
752 | }; |
---|
753 | }; |
---|
754 | }; |
---|
755 | |
---|
756 | if(verboseLevel > 2){ |
---|
757 | G4cout << " after deutrons " << thePartners.size() << G4endl; |
---|
758 | } |
---|
759 | |
---|
760 | if (thePartners.size() > 1) { // Sort list by path length |
---|
761 | std::sort(thePartners.begin(), thePartners.end(), sortPartners); |
---|
762 | } |
---|
763 | |
---|
764 | G4InuclElementaryParticle particle; // Dummy for end of list |
---|
765 | thePartners.push_back(partner(particle, path)); |
---|
766 | } |
---|
767 | |
---|
768 | return; |
---|
769 | } |
---|
770 | |
---|
771 | |
---|
772 | const std::vector<G4CascadParticle>& |
---|
773 | G4NucleiModel::generateParticleFate(G4CascadParticle& cparticle, |
---|
774 | G4ElementaryParticleCollider* theElementaryParticleCollider) { |
---|
775 | if (verboseLevel > 3) |
---|
776 | G4cout << " >>> G4NucleiModel::generateParticleFate" << G4endl; |
---|
777 | |
---|
778 | outgoing_cparticles.clear(); // Clear return buffer for this event |
---|
779 | |
---|
780 | generateInteractionPartners(cparticle); // Fills "thePartners" data |
---|
781 | |
---|
782 | if (thePartners.empty()) { // smth. is wrong -> needs special treatment |
---|
783 | G4cout << " generateParticleFate-> can not be here " << G4endl; |
---|
784 | return outgoing_cparticles; |
---|
785 | } |
---|
786 | |
---|
787 | G4int npart = thePartners.size(); |
---|
788 | |
---|
789 | if (npart == 1) { // cparticle is on the next zone entry |
---|
790 | // need to go here if particle outside nucleus ? |
---|
791 | // |
---|
792 | cparticle.propagateAlongThePath(thePartners[0].second); |
---|
793 | cparticle.incrementCurrentPath(thePartners[0].second); |
---|
794 | boundaryTransition(cparticle); |
---|
795 | outgoing_cparticles.push_back(cparticle); |
---|
796 | |
---|
797 | if (verboseLevel > 2){ |
---|
798 | G4cout << " next zone " << G4endl; |
---|
799 | cparticle.print(); |
---|
800 | } |
---|
801 | |
---|
802 | } else { // there are possible interactions |
---|
803 | |
---|
804 | G4ThreeVector old_position = cparticle.getPosition(); |
---|
805 | |
---|
806 | G4InuclElementaryParticle bullet = cparticle.getParticle(); |
---|
807 | |
---|
808 | G4bool no_interaction = true; |
---|
809 | |
---|
810 | G4int zone = cparticle.getCurrentZone(); |
---|
811 | |
---|
812 | G4CollisionOutput output; |
---|
813 | |
---|
814 | for (G4int i = 0; i < npart - 1; i++) { |
---|
815 | if (i > 0) cparticle.updatePosition(old_position); |
---|
816 | |
---|
817 | G4InuclElementaryParticle target = thePartners[i].first; |
---|
818 | |
---|
819 | if (verboseLevel > 2){ |
---|
820 | if (target.quasi_deutron()) |
---|
821 | G4cout << " try absorption: target " << target.type() << " bullet " << |
---|
822 | bullet.type() << G4endl; |
---|
823 | } |
---|
824 | |
---|
825 | output.reset(); |
---|
826 | theElementaryParticleCollider->collide(&bullet, &target, output); |
---|
827 | |
---|
828 | if (verboseLevel > 2) output.printCollisionOutput(); |
---|
829 | |
---|
830 | // Don't need to copy list, as "output" isn't changed again below |
---|
831 | const std::vector<G4InuclElementaryParticle>& outgoing_particles = |
---|
832 | output.getOutgoingParticles(); |
---|
833 | |
---|
834 | if (passFermi(outgoing_particles, zone)) { // interaction |
---|
835 | cparticle.propagateAlongThePath(thePartners[i].second); |
---|
836 | G4ThreeVector new_position = cparticle.getPosition(); |
---|
837 | |
---|
838 | for (G4int ip = 0; ip < G4int(outgoing_particles.size()); ip++) { |
---|
839 | G4CascadParticle temp(outgoing_particles[ip], new_position, zone, 0.0, 0); |
---|
840 | outgoing_cparticles.push_back(temp); |
---|
841 | } |
---|
842 | |
---|
843 | no_interaction = false; |
---|
844 | current_nucl1 = 0; |
---|
845 | current_nucl2 = 0; |
---|
846 | #ifdef CHC_CHECK |
---|
847 | G4double out_charge = 0.0; |
---|
848 | |
---|
849 | for (G4int ip = 0; ip < G4int(outgoing_particles.size()); ip++) |
---|
850 | out_charge += outgoing_particles[ip].getCharge(); |
---|
851 | |
---|
852 | G4cout << " multiplicity " << outgoing_particles.size() << |
---|
853 | " bul type " << bullet.type() << " targ type " << target.type() << |
---|
854 | G4endl << " initial charge " << bullet.getCharge() + target.getCharge() |
---|
855 | << " out charge " << out_charge << G4endl; |
---|
856 | #endif |
---|
857 | |
---|
858 | if (verboseLevel > 2){ |
---|
859 | G4cout << " partner type " << target.type() << G4endl; |
---|
860 | } |
---|
861 | |
---|
862 | if (target.nucleon()) { |
---|
863 | current_nucl1 = target.type(); |
---|
864 | |
---|
865 | } else { |
---|
866 | if (verboseLevel > 2) G4cout << " good absorption " << G4endl; |
---|
867 | |
---|
868 | current_nucl1 = (target.type() - 100) / 10; |
---|
869 | current_nucl2 = target.type() - 100 - 10 * current_nucl1; |
---|
870 | } |
---|
871 | |
---|
872 | if (current_nucl1 == 1) { |
---|
873 | protonNumberCurrent -= 1.0; |
---|
874 | |
---|
875 | } else { |
---|
876 | neutronNumberCurrent -= 1.0; |
---|
877 | }; |
---|
878 | |
---|
879 | if (current_nucl2 == 1) { |
---|
880 | protonNumberCurrent -= 1.0; |
---|
881 | |
---|
882 | } else if(current_nucl2 == 2) { |
---|
883 | neutronNumberCurrent -= 1.0; |
---|
884 | }; |
---|
885 | |
---|
886 | break; |
---|
887 | }; |
---|
888 | } // loop over partners |
---|
889 | |
---|
890 | if (no_interaction) { // still no interactions |
---|
891 | cparticle.updatePosition(old_position); |
---|
892 | cparticle.propagateAlongThePath(thePartners[npart - 1].second); |
---|
893 | cparticle.incrementCurrentPath(thePartners[npart - 1].second); |
---|
894 | boundaryTransition(cparticle); |
---|
895 | outgoing_cparticles.push_back(cparticle); |
---|
896 | }; |
---|
897 | }; |
---|
898 | |
---|
899 | return outgoing_cparticles; |
---|
900 | } |
---|
901 | |
---|
902 | G4bool G4NucleiModel::passFermi(const std::vector<G4InuclElementaryParticle>& particles, |
---|
903 | G4int zone) { |
---|
904 | if (verboseLevel > 3) { |
---|
905 | G4cout << " >>> G4NucleiModel::passFermi" << G4endl; |
---|
906 | } |
---|
907 | |
---|
908 | for (G4int i = 0; i < G4int(particles.size()); i++) { |
---|
909 | |
---|
910 | if (particles[i].nucleon()) { |
---|
911 | |
---|
912 | if (verboseLevel > 2){ |
---|
913 | G4cout << " type " << particles[i].type() << " p " << particles[i].getMomModule() |
---|
914 | << " pf " << fermi_momenta[particles[i].type() - 1][zone] << G4endl; |
---|
915 | } |
---|
916 | |
---|
917 | if (particles[i].getMomModule() < fermi_momenta[particles[i].type() - 1][zone]) { |
---|
918 | |
---|
919 | if (verboseLevel > 2) { |
---|
920 | G4cout << " rejected by fermi: type " << particles[i].type() << |
---|
921 | " p " << particles[i].getMomModule() << G4endl; |
---|
922 | } |
---|
923 | |
---|
924 | return false; |
---|
925 | }; |
---|
926 | }; |
---|
927 | }; |
---|
928 | return true; |
---|
929 | } |
---|
930 | |
---|
931 | void G4NucleiModel::boundaryTransition(G4CascadParticle& cparticle) { |
---|
932 | |
---|
933 | if (verboseLevel > 3) { |
---|
934 | G4cout << " >>> G4NucleiModel::boundaryTransition" << G4endl; |
---|
935 | } |
---|
936 | |
---|
937 | G4int zone = cparticle.getCurrentZone(); |
---|
938 | |
---|
939 | if (cparticle.movingInsideNuclei() && zone == 0) { |
---|
940 | G4cout << " boundaryTransition-> in zone 0 " << G4endl; |
---|
941 | |
---|
942 | } else { |
---|
943 | G4LorentzVector mom = cparticle.getMomentum(); |
---|
944 | G4ThreeVector pos = cparticle.getPosition(); |
---|
945 | |
---|
946 | G4int type = cparticle.getParticle().type(); |
---|
947 | |
---|
948 | G4double pr = pos.dot(mom.vect()); |
---|
949 | G4double r = pos.mag(); |
---|
950 | |
---|
951 | pr /= r; |
---|
952 | |
---|
953 | G4int next_zone = cparticle.movingInsideNuclei() ? zone - 1 : zone + 1; |
---|
954 | |
---|
955 | G4double dv = getPotential(type,zone) - getPotential(type, next_zone); |
---|
956 | // G4cout << "Potentials for type " << type << " = " |
---|
957 | // << getPotential(type,zone) << " , " |
---|
958 | // << getPotential(type,next_zone) << G4endl; |
---|
959 | |
---|
960 | G4double qv = dv * dv - 2.0 * dv * mom.e() + pr * pr; |
---|
961 | |
---|
962 | G4double p1r; |
---|
963 | |
---|
964 | if (verboseLevel > 2){ |
---|
965 | G4cout << " type " << type << " zone " << zone |
---|
966 | << " next " << next_zone |
---|
967 | << " qv " << qv << " dv " << dv << G4endl; |
---|
968 | } |
---|
969 | |
---|
970 | if(qv <= 0.0) { // reflection |
---|
971 | p1r = -pr; |
---|
972 | cparticle.incrementReflectionCounter(); |
---|
973 | |
---|
974 | } else { // transition |
---|
975 | p1r = std::sqrt(qv); |
---|
976 | if(pr < 0.0) p1r = -p1r; |
---|
977 | cparticle.updateZone(next_zone); |
---|
978 | cparticle.resetReflection(); |
---|
979 | }; |
---|
980 | |
---|
981 | G4double prr = (p1r - pr) / r; |
---|
982 | |
---|
983 | mom.setVect(mom.vect() + pos*prr); |
---|
984 | cparticle.updateParticleMomentum(mom); |
---|
985 | }; |
---|
986 | } |
---|
987 | |
---|
988 | G4bool G4NucleiModel::worthToPropagate(const G4CascadParticle& cparticle) const { |
---|
989 | |
---|
990 | if (verboseLevel > 3) { |
---|
991 | G4cout << " >>> G4NucleiModel::worthToPropagate" << G4endl; |
---|
992 | } |
---|
993 | |
---|
994 | const G4double cut_coeff = 2.0; |
---|
995 | |
---|
996 | G4bool worth = true; |
---|
997 | |
---|
998 | if (cparticle.reflectedNow()) { |
---|
999 | G4int zone = cparticle.getCurrentZone(); |
---|
1000 | |
---|
1001 | G4int ip = cparticle.getParticle().type(); |
---|
1002 | |
---|
1003 | if (cparticle.getParticle().getKineticEnergy() < cut_coeff * |
---|
1004 | getFermiKinetic(ip, zone)) worth = false; |
---|
1005 | |
---|
1006 | if (verboseLevel > 3) { |
---|
1007 | G4cout << "ekin=" << cparticle.getParticle().getKineticEnergy() |
---|
1008 | << " fermiKin=" << getFermiKinetic(ip, zone) << " : worth? " |
---|
1009 | << worth << G4endl; |
---|
1010 | } |
---|
1011 | }; |
---|
1012 | |
---|
1013 | return worth; |
---|
1014 | } |
---|
1015 | |
---|
1016 | G4double G4NucleiModel::getRatio(G4int ip) const { |
---|
1017 | |
---|
1018 | if (verboseLevel > 3) { |
---|
1019 | G4cout << " >>> G4NucleiModel::getRatio" << G4endl; |
---|
1020 | } |
---|
1021 | |
---|
1022 | G4double rat; |
---|
1023 | // G4double ratm; |
---|
1024 | |
---|
1025 | // Calculate number of protons and neutrons in local region |
---|
1026 | // G4double Athird = G4cbrt(A); |
---|
1027 | // G4double Nneut = Athird*(A-Z)/A; |
---|
1028 | // G4double Nprot = Athird*Z/A; |
---|
1029 | |
---|
1030 | // Reduce number of |
---|
1031 | if (ip == 1) { |
---|
1032 | if (verboseLevel > 2){ |
---|
1033 | G4cout << " current " << protonNumberCurrent << " inp " << protonNumber << G4endl; |
---|
1034 | } |
---|
1035 | |
---|
1036 | rat = protonNumberCurrent/protonNumber; |
---|
1037 | |
---|
1038 | // Calculate ratio modified for local region |
---|
1039 | // G4double deltaP = protonNumber - protonNumberCurrent; |
---|
1040 | // G4cout << " deltaP = " << deltaP << G4endl; |
---|
1041 | // ratm = std::max(0.0, (Nprot - deltaP)/Nprot); |
---|
1042 | |
---|
1043 | } else { |
---|
1044 | if (verboseLevel > 2){ |
---|
1045 | G4cout << " current " << neutronNumberCurrent << " inp " << neutronNumber << G4endl; |
---|
1046 | } |
---|
1047 | |
---|
1048 | rat = neutronNumberCurrent/neutronNumber; |
---|
1049 | |
---|
1050 | // Calculate ratio modified for local region |
---|
1051 | // G4double deltaN = neutronNumber - neutronNumberCurrent; |
---|
1052 | // G4cout << " deltaN = " << deltaN << G4endl; |
---|
1053 | // ratm = std::max(0.0, (Nneut - deltaN)/Nneut); |
---|
1054 | } |
---|
1055 | |
---|
1056 | // G4cout << " get ratio: ratm = " << ratm << G4endl; |
---|
1057 | return rat; |
---|
1058 | // return ratm; |
---|
1059 | } |
---|
1060 | |
---|
1061 | G4CascadParticle G4NucleiModel::initializeCascad(G4InuclElementaryParticle* particle) { |
---|
1062 | |
---|
1063 | if (verboseLevel > 3) { |
---|
1064 | G4cout << " >>> G4NucleiModel::initializeCascad(G4InuclElementaryParticle* particle)" << G4endl; |
---|
1065 | } |
---|
1066 | |
---|
1067 | const G4double large = 1000.0; |
---|
1068 | |
---|
1069 | G4double s1 = std::sqrt(inuclRndm()); |
---|
1070 | G4double phi = randomPHI(); |
---|
1071 | G4double rz = nuclei_radius * s1; |
---|
1072 | |
---|
1073 | G4ThreeVector pos(rz*std::cos(phi), rz*std::sin(phi), |
---|
1074 | -nuclei_radius*std::sqrt(1.0 - s1*s1)); |
---|
1075 | |
---|
1076 | G4CascadParticle cpart(*particle, pos, number_of_zones, large, 0); |
---|
1077 | |
---|
1078 | if (verboseLevel > 2) cpart.print(); |
---|
1079 | |
---|
1080 | return cpart; |
---|
1081 | } |
---|
1082 | |
---|
1083 | void G4NucleiModel::initializeCascad(G4InuclNuclei* bullet, |
---|
1084 | G4InuclNuclei* target, |
---|
1085 | modelLists& output) { |
---|
1086 | |
---|
1087 | if (verboseLevel > 3) { |
---|
1088 | G4cout << " >>> G4NucleiModel::initializeCascad(G4InuclNuclei* bullet, G4InuclNuclei* target)" << G4endl; |
---|
1089 | } |
---|
1090 | |
---|
1091 | const G4double large = 1000.0; |
---|
1092 | const G4double max_a_for_cascad = 5.0; |
---|
1093 | const G4double ekin_cut = 2.0; |
---|
1094 | const G4double small_ekin = 1.0e-6; |
---|
1095 | const G4double r_large2for3 = 62.0; |
---|
1096 | const G4double r0forAeq3 = 3.92; |
---|
1097 | const G4double s3max = 6.5; |
---|
1098 | const G4double r_large2for4 = 69.14; |
---|
1099 | const G4double r0forAeq4 = 4.16; |
---|
1100 | const G4double s4max = 7.0; |
---|
1101 | const G4int itry_max = 100; |
---|
1102 | |
---|
1103 | // Convenient references to input buffer contents |
---|
1104 | std::vector<G4CascadParticle>& casparticles = output.first; |
---|
1105 | std::vector<G4InuclElementaryParticle>& particles = output.second; |
---|
1106 | |
---|
1107 | casparticles.clear(); // Reset input buffer to fill this event |
---|
1108 | particles.clear(); |
---|
1109 | |
---|
1110 | // first decide whether it will be cascad or compound final nuclei |
---|
1111 | G4double ab = bullet->getA(); |
---|
1112 | G4double zb = bullet->getZ(); |
---|
1113 | G4double at = target->getA(); |
---|
1114 | G4double zt = target->getZ(); |
---|
1115 | |
---|
1116 | G4double massb = bullet->getMass(); // For creating LorentzVectors below |
---|
1117 | |
---|
1118 | if (ab < max_a_for_cascad) { |
---|
1119 | |
---|
1120 | G4double benb = 0.001 * G4NucleiProperties::GetBindingEnergy(G4lrint(ab), G4lrint(zb)) / ab; |
---|
1121 | G4double bent = 0.001 * G4NucleiProperties::GetBindingEnergy(G4lrint(at), G4lrint(zt)) / at; |
---|
1122 | G4double ben = benb < bent ? bent : benb; |
---|
1123 | |
---|
1124 | if (bullet->getKineticEnergy()/ab > ekin_cut*ben) { |
---|
1125 | G4int itryg = 0; |
---|
1126 | |
---|
1127 | while (casparticles.size() == 0 && itryg < itry_max) { |
---|
1128 | itryg++; |
---|
1129 | |
---|
1130 | if(itryg > 0) particles.clear(); |
---|
1131 | |
---|
1132 | // nucleons coordinates and momenta in nuclei rest frame |
---|
1133 | std::vector<G4ThreeVector> coordinates; |
---|
1134 | std::vector<G4LorentzVector> momentums; |
---|
1135 | |
---|
1136 | if (ab < 3.0) { // deutron, simplest case |
---|
1137 | G4double r = 2.214 - 3.4208 * std::log(1.0 - 0.981 * inuclRndm()); |
---|
1138 | G4double s = 2.0 * inuclRndm() - 1.0; |
---|
1139 | G4double r1 = r * std::sqrt(1.0 - s * s); |
---|
1140 | G4double phi = randomPHI(); |
---|
1141 | |
---|
1142 | G4ThreeVector coord1(r1*std::cos(phi), r1*std::sin(phi), r*s); |
---|
1143 | coordinates.push_back(coord1); |
---|
1144 | |
---|
1145 | coord1 *= -1.; |
---|
1146 | coordinates.push_back(coord1); |
---|
1147 | |
---|
1148 | G4double p = 0.0; |
---|
1149 | G4bool bad = true; |
---|
1150 | G4int itry = 0; |
---|
1151 | |
---|
1152 | while (bad && itry < itry_max) { |
---|
1153 | itry++; |
---|
1154 | p = 456.0 * inuclRndm(); |
---|
1155 | |
---|
1156 | if (p * p / (p * p + 2079.36) / (p * p + 2079.36) > 1.2023e-4 * inuclRndm() && |
---|
1157 | p * r > 312.0) bad = false; |
---|
1158 | }; |
---|
1159 | |
---|
1160 | if (itry == itry_max) |
---|
1161 | if (verboseLevel > 2){ |
---|
1162 | G4cout << " deutron bullet generation-> itry = " << itry_max << G4endl; |
---|
1163 | } |
---|
1164 | |
---|
1165 | p = 0.0005 * p; |
---|
1166 | |
---|
1167 | if (verboseLevel > 2){ |
---|
1168 | G4cout << " p nuc " << p << G4endl; |
---|
1169 | } |
---|
1170 | |
---|
1171 | G4LorentzVector mom = generateWithRandomAngles(p, massb); |
---|
1172 | |
---|
1173 | momentums.push_back(mom); |
---|
1174 | mom.setVect(-mom.vect()); |
---|
1175 | momentums.push_back(-mom); |
---|
1176 | } else { |
---|
1177 | G4int ia = int(ab + 0.5); |
---|
1178 | |
---|
1179 | G4ThreeVector coord1; |
---|
1180 | |
---|
1181 | G4bool badco = true; |
---|
1182 | |
---|
1183 | G4int itry = 0; |
---|
1184 | |
---|
1185 | if (ab < 4.0) { // a == 3 |
---|
1186 | while (badco && itry < itry_max) { |
---|
1187 | if (itry > 0) coordinates.clear(); |
---|
1188 | itry++; |
---|
1189 | G4int i(0); |
---|
1190 | |
---|
1191 | for (i = 0; i < 2; i++) { |
---|
1192 | G4int itry1 = 0; |
---|
1193 | G4double s, u, rho; |
---|
1194 | G4double fmax = std::exp(-0.5) / std::sqrt(0.5); |
---|
1195 | |
---|
1196 | while (itry1 < itry_max) { |
---|
1197 | itry1++; |
---|
1198 | s = -std::log(inuclRndm()); |
---|
1199 | u = fmax * inuclRndm(); |
---|
1200 | rho = std::sqrt(s) * std::exp(-s); |
---|
1201 | |
---|
1202 | if (std::sqrt(s) * std::exp(-s) > u && s < s3max) { |
---|
1203 | s = r0forAeq3 * std::sqrt(s); |
---|
1204 | coord1 = generateWithRandomAngles(s).vect(); |
---|
1205 | coordinates.push_back(coord1); |
---|
1206 | |
---|
1207 | if (verboseLevel > 2){ |
---|
1208 | G4cout << " i " << i << " r " << coord1.mag() << G4endl; |
---|
1209 | } |
---|
1210 | break; |
---|
1211 | }; |
---|
1212 | }; |
---|
1213 | |
---|
1214 | if (itry1 == itry_max) { // bad case |
---|
1215 | coord1.set(10000.,10000.,10000.); |
---|
1216 | coordinates.push_back(coord1); |
---|
1217 | break; |
---|
1218 | }; |
---|
1219 | }; |
---|
1220 | |
---|
1221 | coord1 = -coordinates[0] - coordinates[1]; |
---|
1222 | if (verboseLevel > 2) { |
---|
1223 | G4cout << " 3 r " << coord1.mag() << G4endl; |
---|
1224 | } |
---|
1225 | |
---|
1226 | coordinates.push_back(coord1); |
---|
1227 | |
---|
1228 | G4bool large_dist = false; |
---|
1229 | |
---|
1230 | for (i = 0; i < 2; i++) { |
---|
1231 | for (G4int j = i+1; j < 3; j++) { |
---|
1232 | G4double r2 = (coordinates[i]-coordinates[j]).mag2(); |
---|
1233 | |
---|
1234 | if (verboseLevel > 2) { |
---|
1235 | G4cout << " i " << i << " j " << j << " r2 " << r2 << G4endl; |
---|
1236 | } |
---|
1237 | |
---|
1238 | if (r2 > r_large2for3) { |
---|
1239 | large_dist = true; |
---|
1240 | |
---|
1241 | break; |
---|
1242 | }; |
---|
1243 | }; |
---|
1244 | |
---|
1245 | if (large_dist) break; |
---|
1246 | }; |
---|
1247 | |
---|
1248 | if(!large_dist) badco = false; |
---|
1249 | |
---|
1250 | }; |
---|
1251 | |
---|
1252 | } else { // a >= 4 |
---|
1253 | G4double b = 3./(ab - 2.0); |
---|
1254 | G4double b1 = 1.0 - b / 2.0; |
---|
1255 | G4double u = b1 + std::sqrt(b1 * b1 + b); |
---|
1256 | b = 1.0 / b; |
---|
1257 | G4double fmax = (1.0 + u * b) * u * std::exp(-u); |
---|
1258 | |
---|
1259 | while (badco && itry < itry_max) { |
---|
1260 | |
---|
1261 | if (itry > 0) coordinates.clear(); |
---|
1262 | itry++; |
---|
1263 | G4int i(0); |
---|
1264 | |
---|
1265 | for (i = 0; i < ia-1; i++) { |
---|
1266 | G4int itry1 = 0; |
---|
1267 | G4double s, u; |
---|
1268 | |
---|
1269 | while (itry1 < itry_max) { |
---|
1270 | itry1++; |
---|
1271 | s = -std::log(inuclRndm()); |
---|
1272 | u = fmax * inuclRndm(); |
---|
1273 | |
---|
1274 | if (std::sqrt(s) * std::exp(-s) * (1.0 + b * s) > u && s < s4max) { |
---|
1275 | s = r0forAeq4 * std::sqrt(s); |
---|
1276 | coord1 = generateWithRandomAngles(s).vect(); |
---|
1277 | coordinates.push_back(coord1); |
---|
1278 | |
---|
1279 | if (verboseLevel > 2) { |
---|
1280 | G4cout << " i " << i << " r " << coord1.mag() << G4endl; |
---|
1281 | } |
---|
1282 | |
---|
1283 | break; |
---|
1284 | }; |
---|
1285 | }; |
---|
1286 | |
---|
1287 | if (itry1 == itry_max) { // bad case |
---|
1288 | coord1.set(10000.,10000.,10000.); |
---|
1289 | coordinates.push_back(coord1); |
---|
1290 | break; |
---|
1291 | }; |
---|
1292 | }; |
---|
1293 | |
---|
1294 | coord1 *= 0.0; // Cheap way to reset |
---|
1295 | for(G4int j = 0; j < ia -1; j++) coord1 -= coordinates[j]; |
---|
1296 | |
---|
1297 | coordinates.push_back(coord1); |
---|
1298 | |
---|
1299 | if (verboseLevel > 2){ |
---|
1300 | G4cout << " last r " << coord1.mag() << G4endl; |
---|
1301 | } |
---|
1302 | |
---|
1303 | G4bool large_dist = false; |
---|
1304 | |
---|
1305 | for (i = 0; i < ia-1; i++) { |
---|
1306 | for (G4int j = i+1; j < ia; j++) { |
---|
1307 | |
---|
1308 | G4double r2 = (coordinates[i]-coordinates[j]).mag2(); |
---|
1309 | |
---|
1310 | if (verboseLevel > 2){ |
---|
1311 | G4cout << " i " << i << " j " << j << " r2 " << r2 << G4endl; |
---|
1312 | } |
---|
1313 | |
---|
1314 | if (r2 > r_large2for4) { |
---|
1315 | large_dist = true; |
---|
1316 | |
---|
1317 | break; |
---|
1318 | }; |
---|
1319 | }; |
---|
1320 | |
---|
1321 | if (large_dist) break; |
---|
1322 | }; |
---|
1323 | |
---|
1324 | if (!large_dist) badco = false; |
---|
1325 | }; |
---|
1326 | }; |
---|
1327 | |
---|
1328 | if(badco) { |
---|
1329 | G4cout << " can not generate the nucleons coordinates for a " |
---|
1330 | << ab << G4endl; |
---|
1331 | |
---|
1332 | casparticles.clear(); // Return empty buffer on error |
---|
1333 | particles.clear(); |
---|
1334 | return; |
---|
1335 | |
---|
1336 | } else { // momentums |
---|
1337 | G4double p, u, x; |
---|
1338 | G4LorentzVector mom; |
---|
1339 | //G4bool badp = True; |
---|
1340 | G4int i(0); |
---|
1341 | |
---|
1342 | for (i = 0; i < ia - 1; i++) { |
---|
1343 | G4int itry = 0; |
---|
1344 | |
---|
1345 | while(itry < itry_max) { |
---|
1346 | itry++; |
---|
1347 | u = -std::log(0.879853 - 0.8798502 * inuclRndm()); |
---|
1348 | x = u * std::exp(-u); |
---|
1349 | |
---|
1350 | if(x > inuclRndm()) { |
---|
1351 | p = std::sqrt(0.01953 * u); |
---|
1352 | mom = generateWithRandomAngles(p, massb); |
---|
1353 | momentums.push_back(mom); |
---|
1354 | |
---|
1355 | break; |
---|
1356 | }; |
---|
1357 | }; |
---|
1358 | |
---|
1359 | if(itry == itry_max) { |
---|
1360 | G4cout << " can not generate proper momentum for a " |
---|
1361 | << ab << G4endl; |
---|
1362 | |
---|
1363 | casparticles.clear(); // Return empty buffer on error |
---|
1364 | particles.clear(); |
---|
1365 | return; |
---|
1366 | }; |
---|
1367 | |
---|
1368 | }; |
---|
1369 | // last momentum |
---|
1370 | |
---|
1371 | mom *= 0.; // Cheap way to reset |
---|
1372 | for(G4int j=0; j< ia-1; j++) mom -= momentums[j]; |
---|
1373 | |
---|
1374 | momentums.push_back(mom); |
---|
1375 | }; |
---|
1376 | } |
---|
1377 | |
---|
1378 | // Coordinates and momenta at rest are generated, now back to the lab |
---|
1379 | G4double rb = 0.0; |
---|
1380 | G4int i(0); |
---|
1381 | |
---|
1382 | for(i = 0; i < G4int(coordinates.size()); i++) { |
---|
1383 | G4double rp = coordinates[i].mag2(); |
---|
1384 | |
---|
1385 | if(rp > rb) rb = rp; |
---|
1386 | }; |
---|
1387 | |
---|
1388 | // nuclei i.p. as a whole |
---|
1389 | G4double s1 = std::sqrt(inuclRndm()); |
---|
1390 | G4double phi = randomPHI(); |
---|
1391 | G4double rz = (nuclei_radius + rb) * s1; |
---|
1392 | G4ThreeVector global_pos(rz*std::cos(phi), rz*std::sin(phi), |
---|
1393 | -(nuclei_radius+rb)*std::sqrt(1.0-s1*s1)); |
---|
1394 | |
---|
1395 | for (i = 0; i < G4int(coordinates.size()); i++) { |
---|
1396 | coordinates[i] += global_pos; |
---|
1397 | }; |
---|
1398 | |
---|
1399 | // all nucleons at rest |
---|
1400 | std::vector<G4InuclElementaryParticle> raw_particles; |
---|
1401 | G4int ia = G4int(ab + 0.5); |
---|
1402 | G4int iz = G4int(zb + 0.5); |
---|
1403 | |
---|
1404 | for (G4int ipa = 0; ipa < ia; ipa++) { |
---|
1405 | G4int knd = ipa < iz ? 1 : 2; |
---|
1406 | raw_particles.push_back(G4InuclElementaryParticle(momentums[ipa], knd)); |
---|
1407 | }; |
---|
1408 | |
---|
1409 | G4InuclElementaryParticle dummy(small_ekin, 1); |
---|
1410 | G4LorentzConvertor toTheBulletRestFrame; |
---|
1411 | toTheBulletRestFrame.setBullet(dummy.getMomentum(), dummy.getMass()); |
---|
1412 | toTheBulletRestFrame.setTarget(bullet->getMomentum(),bullet->getMass()); |
---|
1413 | toTheBulletRestFrame.toTheTargetRestFrame(); |
---|
1414 | |
---|
1415 | particleIterator ipart; |
---|
1416 | |
---|
1417 | for (ipart = raw_particles.begin(); ipart != raw_particles.end(); ipart++) { |
---|
1418 | ipart->setMomentum(toTheBulletRestFrame.backToTheLab(ipart->getMomentum())); |
---|
1419 | }; |
---|
1420 | |
---|
1421 | // fill cascad particles and outgoing particles |
---|
1422 | |
---|
1423 | for(G4int ip = 0; ip < G4int(raw_particles.size()); ip++) { |
---|
1424 | G4LorentzVector mom = raw_particles[ip].getMomentum(); |
---|
1425 | G4double pmod = mom.rho(); |
---|
1426 | G4double t0 = -mom.vect().dot(coordinates[ip]) / pmod; |
---|
1427 | G4double det = t0 * t0 + nuclei_radius * nuclei_radius |
---|
1428 | - coordinates[ip].mag2(); |
---|
1429 | G4double tr = -1.0; |
---|
1430 | |
---|
1431 | if(det > 0.0) { |
---|
1432 | G4double t1 = t0 + std::sqrt(det); |
---|
1433 | G4double t2 = t0 - std::sqrt(det); |
---|
1434 | |
---|
1435 | if(std::fabs(t1) <= std::fabs(t2)) { |
---|
1436 | if(t1 > 0.0) { |
---|
1437 | if(coordinates[ip].z() + mom.z() * t1 / pmod <= 0.0) tr = t1; |
---|
1438 | }; |
---|
1439 | |
---|
1440 | if(tr < 0.0 && t2 > 0.0) { |
---|
1441 | |
---|
1442 | if(coordinates[ip].z() + mom.z() * t2 / pmod <= 0.0) tr = t2; |
---|
1443 | }; |
---|
1444 | |
---|
1445 | } else { |
---|
1446 | if(t2 > 0.0) { |
---|
1447 | |
---|
1448 | if(coordinates[ip].z() + mom.z() * t2 / pmod <= 0.0) tr = t2; |
---|
1449 | }; |
---|
1450 | |
---|
1451 | if(tr < 0.0 && t1 > 0.0) { |
---|
1452 | if(coordinates[ip].z() + mom.z() * t1 / pmod <= 0.0) tr = t1; |
---|
1453 | }; |
---|
1454 | }; |
---|
1455 | |
---|
1456 | }; |
---|
1457 | |
---|
1458 | if(tr >= 0.0) { // cascad particle |
---|
1459 | coordinates[ip] += mom*tr / pmod; |
---|
1460 | casparticles.push_back(G4CascadParticle(raw_particles[ip], |
---|
1461 | coordinates[ip], |
---|
1462 | number_of_zones, large, 0)); |
---|
1463 | |
---|
1464 | } else { |
---|
1465 | particles.push_back(raw_particles[ip]); |
---|
1466 | }; |
---|
1467 | }; |
---|
1468 | }; |
---|
1469 | |
---|
1470 | if(casparticles.size() == 0) { |
---|
1471 | particles.clear(); |
---|
1472 | |
---|
1473 | G4cout << " can not generate proper distribution for " << itry_max |
---|
1474 | << " steps " << G4endl; |
---|
1475 | }; |
---|
1476 | }; |
---|
1477 | }; |
---|
1478 | |
---|
1479 | if(verboseLevel > 2){ |
---|
1480 | G4int ip(0); |
---|
1481 | |
---|
1482 | G4cout << " cascad particles: " << casparticles.size() << G4endl; |
---|
1483 | for(ip = 0; ip < G4int(casparticles.size()); ip++) casparticles[ip].print(); |
---|
1484 | |
---|
1485 | G4cout << " outgoing particles: " << particles.size() << G4endl; |
---|
1486 | for(ip = 0; ip < G4int(particles.size()); ip++) |
---|
1487 | particles[ip].printParticle(); |
---|
1488 | } |
---|
1489 | |
---|
1490 | return; // Buffer has been filled |
---|
1491 | } |
---|
1492 | |
---|
1493 | |
---|
1494 | G4double G4NucleiModel::absorptionCrossSection(G4double ke, G4int type) const { |
---|
1495 | if (type != pionPlus && type != pionMinus && type != pionZero) { |
---|
1496 | G4cerr << " absorptionCrossSection only valid for incident pions" << G4endl; |
---|
1497 | return 0.; |
---|
1498 | } |
---|
1499 | |
---|
1500 | // was 0.2 since the beginning, then changed to 1.0 |
---|
1501 | // now 0.1 to convert from mb to fm**2 |
---|
1502 | const G4double corr_fac = 1.0; |
---|
1503 | G4double csec = 0.0; |
---|
1504 | |
---|
1505 | if (ke < 0.3) { |
---|
1506 | csec = 0.1106 / std::sqrt(ke) - 0.8 + 0.08 / ((ke-0.123)*(ke-0.123) + 0.0056); |
---|
1507 | |
---|
1508 | } else if (ke < 1.0) { |
---|
1509 | csec = 3.6735 * (1.0-ke)*(1.0-ke); |
---|
1510 | }; |
---|
1511 | |
---|
1512 | if (csec < 0.0) csec = 0.0; |
---|
1513 | |
---|
1514 | if (verboseLevel > 2) { |
---|
1515 | G4cout << " ekin " << ke << " abs. csec " << corr_fac * csec << G4endl; |
---|
1516 | } |
---|
1517 | |
---|
1518 | csec *= corr_fac; |
---|
1519 | |
---|
1520 | return csec; |
---|
1521 | } |
---|
1522 | |
---|
1523 | G4double G4NucleiModel::totalCrossSection(G4double ke, G4int rtype) const |
---|
1524 | { |
---|
1525 | static const G4double keScale[] = { |
---|
1526 | 0.0, 0.01, 0.013, 0.018, 0.024, 0.032, 0.042, 0.056, 0.075, 0.1, |
---|
1527 | 0.13, 0.18, 0.24, 0.32, 0.42, 0.56, 0.75, 1.0, 1.3, 1.8, |
---|
1528 | 2.4, 3.2, 4.2, 5.6, 7.5, 10.0, 13.0, 18.0, 24.0, 32.0}; |
---|
1529 | static const G4int NBINS = sizeof(keScale)/sizeof(G4double); |
---|
1530 | |
---|
1531 | static G4CascadeInterpolator<NBINS> interp(keScale); |
---|
1532 | |
---|
1533 | // Pion and nucleon scattering cross-sections are available elsewhere |
---|
1534 | switch (rtype) { |
---|
1535 | case pro*pro: return G4CascadePPChannel::getCrossSection(ke); break; |
---|
1536 | case pro*neu: return G4CascadeNPChannel::getCrossSection(ke); break; |
---|
1537 | case pip*pro: return G4CascadePiPlusPChannel::getCrossSection(ke); break; |
---|
1538 | case neu*neu: return G4CascadeNNChannel::getCrossSection(ke); break; |
---|
1539 | case pim*pro: return G4CascadePiMinusPChannel::getCrossSection(ke); break; |
---|
1540 | case pip*neu: return G4CascadePiPlusNChannel::getCrossSection(ke); break; |
---|
1541 | case pi0*pro: return G4CascadePiZeroPChannel::getCrossSection(ke); break; |
---|
1542 | case pim*neu: return G4CascadePiMinusNChannel::getCrossSection(ke); break; |
---|
1543 | case pi0*neu: return G4CascadePiZeroNChannel::getCrossSection(ke); break; |
---|
1544 | // Remaining channels are handled locally until arrays are moved |
---|
1545 | case kpl*pro: |
---|
1546 | case k0*neu: return interp.interpolate(ke, kpPtot); break; |
---|
1547 | case kmi*pro: |
---|
1548 | case k0b*neu: return interp.interpolate(ke, kmPtot); break; |
---|
1549 | case kpl*neu: |
---|
1550 | case k0*pro: return interp.interpolate(ke, kpNtot); break; |
---|
1551 | case kmi*neu: |
---|
1552 | case k0b*pro: return interp.interpolate(ke, kmNtot); break; |
---|
1553 | case lam*pro: |
---|
1554 | case lam*neu: |
---|
1555 | case s0*pro: |
---|
1556 | case s0*neu: return interp.interpolate(ke, lPtot); break; |
---|
1557 | case sp*pro: |
---|
1558 | case sm*neu: return interp.interpolate(ke, spPtot); break; |
---|
1559 | case sm*pro: |
---|
1560 | case sp*neu: return interp.interpolate(ke, smPtot); break; |
---|
1561 | case xi0*pro: |
---|
1562 | case xim*neu: return interp.interpolate(ke, xi0Ptot); break; |
---|
1563 | case xim*pro: |
---|
1564 | case xi0*neu: return interp.interpolate(ke, ximPtot); break; |
---|
1565 | default: |
---|
1566 | G4cout << " unknown collison type = " << rtype << G4endl; |
---|
1567 | } |
---|
1568 | |
---|
1569 | return 0.; // Failure |
---|
1570 | } |
---|
1571 | |
---|
1572 | // Initialize cross-section interpolation tables |
---|
1573 | |
---|
1574 | const G4double G4NucleiModel::kpPtot[30] = { |
---|
1575 | 10.0, 10.34, 10.44, 10.61, 10.82, 11.09, 11.43, 11.71, 11.75, 11.8, |
---|
1576 | 11.98, 12.28, 12.56, 12.48, 12.67, 14.48, 15.92, 17.83, 17.93, 17.88, |
---|
1577 | 17.46, 17.3, 17.3, 17.4, 17.4, 17.4, 17.4, 17.5, 17.7, 17.8}; |
---|
1578 | |
---|
1579 | const G4double G4NucleiModel::kpNtot[30] = { |
---|
1580 | 6.64, 6.99, 7.09, 7.27, 7.48, 7.75, 8.1, 8.49, 8.84, 9.31, |
---|
1581 | 9.8, 10.62, 11.64, 13.08, 14.88, 16.60, 17.5, 18.68, 18.68, 18.29, |
---|
1582 | 17.81, 17.6, 17.6, 17.6, 17.6, 17.6, 17.7, 17.8, 17.9, 18.0}; |
---|
1583 | |
---|
1584 | const G4double G4NucleiModel::kmPtot[30] = { |
---|
1585 | 1997.0, 1681.41, 1586.74, 1428.95, 1239.59, 987.12, 671.54, 377.85, 247.30, 75.54, |
---|
1586 | 71.08, 54.74, 44.08, 44.38, 45.45, 45.07, 41.04, 35.75, 33.22, 30.08, |
---|
1587 | 27.61, 26.5, 25.2, 24.0, 23.4, 22.8, 22.0, 21.3, 21.0, 20.9}; |
---|
1588 | |
---|
1589 | const G4double G4NucleiModel::kmNtot[30] = { |
---|
1590 | 6.15, 6.93, 7.16, 7.55, 8.02, 8.65, 9.43, 10.36, 11.34, 12.64, |
---|
1591 | 14.01, 16.45, 19.32, 23.0, 27.6, 30.92, 29.78, 28.28, 25.62, 23.1, |
---|
1592 | 22.31, 21.9, 21.73, 21.94, 21.23, 20.5, 20.4, 20.2, 20.1, 20.0}; |
---|
1593 | |
---|
1594 | const G4double G4NucleiModel::lPtot[30] = { |
---|
1595 | 300.0, 249.07, 233.8, 208.33, 177.78, 137.04, 86.11, 41.41, 28.86, 12.35, |
---|
1596 | 13.82, 16.76, 20.68, 25.9, 30.37, 31.56, 32.83, 34.5, 34.91, 35.11, |
---|
1597 | 35.03, 36.06, 35.13, 35.01, 35.0, 35.0, 35.0, 35.0, 35.0, 35.0}; |
---|
1598 | |
---|
1599 | const G4double G4NucleiModel::spPtot[30] = { |
---|
1600 | 150.0, 146.0, 144.8, 142.8, 140.4, 137.2, 133.2, 127.6, 120.0, 110.0, |
---|
1601 | 98.06, 84.16, 72.28, 56.58, 43.22, 40.44, 36.14, 30.48, 31.53, 31.92, |
---|
1602 | 29.25, 28.37, 29.81, 33.15, 33.95, 34.0, 34.0, 34.0, 34.0, 34.0}; |
---|
1603 | |
---|
1604 | const G4double G4NucleiModel::smPtot[30] = { |
---|
1605 | 937.0, 788.14, 743.48, 669.05, 579.74, 460.65, 311.79, 183.33, 153.65, 114.6, |
---|
1606 | 105.18, 89.54, 70.58, 45.5, 32.17, 32.54, 32.95, 33.49, 33.55, 33.87, |
---|
1607 | 34.02, 34.29, 33.93, 33.88, 34.0, 34.0, 34.0, 34.0, 34.0, 34.0}; |
---|
1608 | |
---|
1609 | const G4double G4NucleiModel::xi0Ptot[30] = { |
---|
1610 | 16.0, 14.72, 14.34, 13.7, 12.93, 11.9, 10.62, 9.29, 8.3, 7.0, |
---|
1611 | 7.96, 9.56, 11.48, 14.04, 19.22, 25.29, 29.4, 34.8, 34.32, 33.33, |
---|
1612 | 31.89, 29.55, 27.89, 21.43, 17.0, 16.0, 16.0, 16.0, 16.0, 16.0}; |
---|
1613 | |
---|
1614 | const G4double G4NucleiModel::ximPtot[30] = { |
---|
1615 | 33.0, 32.5, 32.35, 32.1, 31.8, 31.4, 30.9, 30.2, 29.25, 28.0, |
---|
1616 | 26.5, 24.6, 22.8, 20.78, 18.22, 19.95, 21.7, 24.0, 24.74, 25.95, |
---|
1617 | 27.59, 27.54, 23.16, 17.43, 12.94, 12.0, 12.0, 12.0, 12.0, 12.0}; |
---|