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 | // $Id: G4ExcitedSigmaConstructor.cc,v 1.11 2006/10/12 10:59:45 kurasige Exp $ |
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28 | // GEANT4 tag $Name: HEAD $ |
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29 | // |
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30 | // |
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31 | // -------------------------------------------------------------- |
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32 | // GEANT 4 class implementation file |
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33 | // |
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34 | // History: first implementation, based on object model of |
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35 | // 10 oct 1998 H.Kurashige |
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36 | // --------------------------------------------------------------- |
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37 | |
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38 | |
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39 | #include "G4ExcitedSigmaConstructor.hh" |
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40 | |
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41 | #include "G4ParticleDefinition.hh" |
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42 | #include "G4ParticleTable.hh" |
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43 | #include "G4ShortLivedTable.hh" |
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44 | #include "G4PhaseSpaceDecayChannel.hh" |
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45 | #include "G4VDecayChannel.hh" |
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46 | #include "G4DecayTable.hh" |
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47 | |
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48 | G4ExcitedSigmaConstructor::G4ExcitedSigmaConstructor(): |
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49 | G4ExcitedBaryonConstructor(NStates, SigmaIsoSpin) |
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50 | { |
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51 | |
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52 | } |
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53 | |
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54 | G4ExcitedSigmaConstructor::~G4ExcitedSigmaConstructor() |
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55 | { |
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56 | } |
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57 | |
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58 | G4DecayTable* G4ExcitedSigmaConstructor::CreateDecayTable( |
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59 | const G4String& parentName, |
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60 | G4int iIso3, |
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61 | G4int iState, |
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62 | G4bool fAnti) |
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63 | { |
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64 | |
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65 | // create decay table |
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66 | G4DecayTable* decayTable = new G4DecayTable(); |
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67 | |
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68 | G4double br; |
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69 | if ( (br=bRatio[iState][NK]) >0.0) { |
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70 | AddNKMode( decayTable, parentName, br, iIso3, fAnti); |
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71 | } |
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72 | |
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73 | if ( (br=bRatio[iState][NKStar]) >0.0) { |
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74 | AddNKStarMode( decayTable, parentName, br, iIso3, fAnti); |
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75 | } |
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76 | |
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77 | if ( (br=bRatio[iState][SigmaPi]) >0.0) { |
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78 | AddSigmaPiMode( decayTable, parentName, br, iIso3, fAnti); |
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79 | } |
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80 | |
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81 | if ( (br=bRatio[iState][SigmaStarPi]) >0.0) { |
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82 | AddSigmaStarPiMode( decayTable, parentName, br, iIso3, fAnti); |
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83 | } |
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84 | |
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85 | if ( (br=bRatio[iState][LambdaPi]) >0.0) { |
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86 | AddLambdaPiMode( decayTable, parentName, br, iIso3, fAnti); |
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87 | } |
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88 | |
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89 | if ( (br=bRatio[iState][SigmaEta]) >0.0) { |
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90 | AddSigmaEtaMode( decayTable, parentName, br, iIso3, fAnti); |
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91 | } |
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92 | |
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93 | if ( (br=bRatio[iState][LambdaStarPi]) >0.0) { |
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94 | AddLambdaStarPiMode( decayTable, parentName, br, iIso3, fAnti); |
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95 | } |
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96 | |
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97 | if ( (br=bRatio[iState][DeltaK]) >0.0) { |
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98 | AddDeltaKMode( decayTable, parentName, br, iIso3, fAnti); |
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99 | } |
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100 | |
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101 | return decayTable; |
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102 | } |
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103 | |
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104 | G4DecayTable* G4ExcitedSigmaConstructor::AddSigmaEtaMode( |
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105 | G4DecayTable* decayTable, const G4String& nameParent, |
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106 | G4double br, G4int iIso3, G4bool fAnti) |
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107 | { |
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108 | G4VDecayChannel* mode; |
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109 | // |
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110 | G4String daughterH; |
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111 | if (iIso3== +2) { |
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112 | daughterH = "sigma+"; |
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113 | } else if (iIso3== 0) { |
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114 | daughterH = "sigma0"; |
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115 | } else if (iIso3== -2) { |
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116 | daughterH = "sigma-"; |
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117 | } |
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118 | if (fAnti) daughterH = "anti_" + daughterH; |
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119 | |
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120 | // create decay channel [parent BR #daughters] |
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121 | mode = new G4PhaseSpaceDecayChannel(nameParent, br, 2, |
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122 | daughterH,"eta"); |
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123 | // add decay table |
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124 | decayTable->Insert(mode); |
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125 | |
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126 | return decayTable; |
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127 | } |
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128 | |
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129 | G4DecayTable* G4ExcitedSigmaConstructor::AddNKMode( |
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130 | G4DecayTable* decayTable, const G4String& nameParent, |
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131 | G4double br, G4int iIso3, G4bool fAnti) |
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132 | |
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133 | |
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134 | { |
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135 | G4VDecayChannel* mode; |
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136 | |
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137 | G4String daughterN; |
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138 | G4String daughterK; |
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139 | G4double r = 0.; |
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140 | |
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141 | // ------------ N K- ------------ |
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142 | // determine daughters |
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143 | if (iIso3== +2) { |
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144 | r=0.; |
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145 | } else if (iIso3== 0) { |
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146 | daughterN = "proton"; |
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147 | r = br/2.; |
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148 | } else if (iIso3== -2) { |
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149 | daughterN = "neutron"; |
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150 | r = br; |
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151 | } |
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152 | if (!fAnti) { |
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153 | daughterK = "kaon-"; |
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154 | } else { |
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155 | daughterK = "kaon+"; |
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156 | } |
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157 | if (fAnti) daughterN = "anti_" + daughterN; |
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158 | if (r>0.) { |
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159 | // create decay channel [parent BR #daughters] |
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160 | mode = new G4PhaseSpaceDecayChannel(nameParent, r, 2, |
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161 | daughterN,daughterK); |
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162 | // add decay table |
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163 | decayTable->Insert(mode); |
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164 | } |
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165 | |
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166 | // ------------ N K0 ------------ |
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167 | // determine daughters |
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168 | if (iIso3== +2) { |
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169 | daughterN = "proton"; |
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170 | r=br; |
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171 | } else if (iIso3== 0) { |
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172 | daughterN = "neutron"; |
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173 | r = br/2.; |
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174 | } else if (iIso3== -2) { |
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175 | r = 0.; |
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176 | } |
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177 | if (!fAnti) { |
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178 | daughterK = "anti_kaon0"; |
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179 | } else { |
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180 | |
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181 | daughterK = "kaon0"; |
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182 | } |
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183 | if (fAnti) daughterN = "anti_" + daughterN; |
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184 | if (r>0.) { |
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185 | // create decay channel [parent BR #daughters] |
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186 | mode = new G4PhaseSpaceDecayChannel(nameParent, r, 2, |
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187 | daughterN,daughterK); |
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188 | // add decay table |
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189 | decayTable->Insert(mode); |
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190 | } |
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191 | |
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192 | return decayTable; |
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193 | } |
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194 | |
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195 | G4DecayTable* G4ExcitedSigmaConstructor::AddDeltaKMode( |
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196 | G4DecayTable* decayTable, const G4String& nameParent, |
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197 | G4double br, G4int iIso3, G4bool fAnti) |
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198 | { |
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199 | G4VDecayChannel* mode; |
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200 | |
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201 | G4String daughterN; |
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202 | G4String daughterK; |
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203 | G4double r = 0.; |
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204 | |
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205 | // ------------ N K- ------------ |
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206 | // determine daughters |
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207 | if (iIso3== +2) { |
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208 | daughterN = "delta++"; |
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209 | r=0.75*br; |
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210 | } else if (iIso3== 0) { |
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211 | daughterN = "delta+"; |
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212 | r = br/2.; |
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213 | } else if (iIso3== -2) { |
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214 | daughterN = "delta0"; |
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215 | r = 0.25*br; |
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216 | } |
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217 | if (!fAnti) { |
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218 | daughterK = "kaon-"; |
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219 | } else { |
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220 | daughterK = "kaon+"; |
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221 | } |
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222 | if (fAnti) daughterN = "anti_" + daughterN; |
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223 | if (r>0.) { |
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224 | // create decay channel [parent BR #daughters] |
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225 | mode = new G4PhaseSpaceDecayChannel(nameParent, r, 2, |
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226 | daughterN,daughterK); |
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227 | // add decay table |
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228 | decayTable->Insert(mode); |
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229 | } |
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230 | |
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231 | // ------------ N K0 ------------ |
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232 | // determine daughters |
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233 | if (iIso3== +2) { |
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234 | daughterN = "delta+"; |
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235 | r=0.25*br; |
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236 | } else if (iIso3== 0) { |
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237 | daughterN = "delta0"; |
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238 | r = br/2.; |
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239 | } else if (iIso3== -2) { |
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240 | daughterN = "delta-"; |
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241 | r=0.75*br; |
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242 | } |
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243 | if (!fAnti) { |
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244 | daughterK = "anti_kaon0"; |
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245 | } else { |
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246 | daughterK = "kaon0"; |
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247 | } |
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248 | if (fAnti) daughterN = "anti_" + daughterN; |
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249 | if (r>0.) { |
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250 | |
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251 | |
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252 | // create decay channel [parent BR #daughters] |
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253 | mode = new G4PhaseSpaceDecayChannel(nameParent, r, 2, |
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254 | daughterN,daughterK); |
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255 | // add decay table |
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256 | decayTable->Insert(mode); |
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257 | } |
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258 | |
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259 | return decayTable; |
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260 | } |
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261 | |
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262 | |
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263 | G4DecayTable* G4ExcitedSigmaConstructor::AddNKStarMode( |
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264 | G4DecayTable* decayTable, const G4String& nameParent, |
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265 | G4double br, G4int iIso3, G4bool fAnti) |
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266 | { |
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267 | G4VDecayChannel* mode; |
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268 | |
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269 | G4String daughterN; |
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270 | G4String daughterK; |
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271 | G4double r = 0.; |
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272 | |
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273 | // ------------ N K- ------------ |
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274 | // determine daughters |
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275 | if (iIso3== +2) { |
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276 | |
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277 | r=0.; |
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278 | } else if (iIso3== 0) { |
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279 | daughterN = "proton"; |
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280 | r = br/2.; |
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281 | } else if (iIso3== -2) { |
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282 | daughterN = "neutron"; |
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283 | r = br; |
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284 | } |
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285 | if (!fAnti) { |
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286 | daughterK = "k_star-"; |
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287 | } else { |
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288 | daughterK = "k_star+"; |
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289 | } |
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290 | if (fAnti) daughterN = "anti_" + daughterN; |
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291 | if (r>0.) { |
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292 | // create decay channel [parent BR #daughters] |
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293 | mode = new G4PhaseSpaceDecayChannel(nameParent, r, 2, |
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294 | daughterN,daughterK); |
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295 | // add decay table |
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296 | decayTable->Insert(mode); |
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297 | } |
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298 | |
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299 | // ------------ N K0 ------------ |
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300 | |
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301 | // determine daughters |
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302 | if (iIso3== +2) { |
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303 | daughterN = "proton"; |
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304 | r=br; |
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305 | } else if (iIso3== 0) { |
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306 | daughterN = "neutron"; |
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307 | r = br/2.; |
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308 | } else if (iIso3== -2) { |
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309 | r = 0.; |
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310 | } |
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311 | if (!fAnti) { |
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312 | daughterK = "anti_k_star0"; |
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313 | } else { |
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314 | daughterK = "k_star0"; |
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315 | } |
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316 | if (fAnti) daughterN = "anti_" + daughterN; |
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317 | // create decay channel [parent BR #daughters] |
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318 | if (r>0.) { |
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319 | mode = new G4PhaseSpaceDecayChannel(nameParent, r, 2, |
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320 | daughterN,daughterK); |
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321 | // add decay table |
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322 | decayTable->Insert(mode); |
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323 | } |
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324 | |
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325 | return decayTable; |
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326 | } |
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327 | |
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328 | G4DecayTable* G4ExcitedSigmaConstructor::AddSigmaPiMode( |
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329 | G4DecayTable* decayTable, const G4String& nameParent, |
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330 | G4double br, G4int iIso3, G4bool fAnti) |
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331 | { |
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332 | G4VDecayChannel* mode; |
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333 | |
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334 | G4String daughterSigma; |
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335 | G4String daughterPi; |
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336 | G4double r = 0.; |
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337 | |
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338 | // ------------ Sigma+ pi - ------------ |
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339 | // determine daughters |
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340 | if (iIso3== +2) { |
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341 | r = 0.; |
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342 | } else if (iIso3== 0) { |
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343 | daughterSigma = "sigma+"; |
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344 | r = br/2.; |
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345 | } else if (iIso3== -2) { |
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346 | daughterSigma = "sigma0"; |
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347 | r = br/2.; |
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348 | } |
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349 | if (!fAnti) { |
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350 | daughterPi = "pi-"; |
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351 | } else { |
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352 | daughterPi = "pi+"; |
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353 | } |
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354 | if (fAnti) daughterSigma = "anti_" + daughterSigma; |
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355 | if (r>0.) { |
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356 | // create decay channel [parent BR #daughters] |
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357 | mode = new G4PhaseSpaceDecayChannel(nameParent, r, 2, |
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358 | daughterSigma,daughterPi); |
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359 | // add decay table |
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360 | decayTable->Insert(mode); |
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361 | } |
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362 | // ------------ Sigma0 Pi0 ------------ |
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363 | // determine daughters |
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364 | if (iIso3== +2) { |
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365 | daughterSigma = "sigma+"; |
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366 | r = br/2.; |
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367 | } else if (iIso3== 0) { |
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368 | r = 0.; |
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369 | } else if (iIso3== -2) { |
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370 | daughterSigma = "sigma-"; |
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371 | |
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372 | |
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373 | r = br/2.; |
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374 | } |
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375 | daughterPi = "pi0"; |
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376 | if (fAnti) daughterSigma = "anti_" + daughterSigma; |
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377 | if (r>0.) { |
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378 | // create decay channel [parent BR #daughters] |
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379 | mode = new G4PhaseSpaceDecayChannel(nameParent, r, 2, |
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380 | daughterSigma,daughterPi); |
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381 | // add decay table |
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382 | decayTable->Insert(mode); |
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383 | } |
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384 | |
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385 | // ------------ Sigma- pi + ------------ |
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386 | // determine daughters |
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387 | if (iIso3== +2) { |
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388 | daughterSigma = "sigma0"; |
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389 | r = br/2.; |
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390 | } else if (iIso3== 0) { |
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391 | daughterSigma = "sigma-"; |
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392 | r = br/2.; |
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393 | } else if (iIso3== -2) { |
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394 | r = 0.; |
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395 | } |
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396 | if (!fAnti) { |
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397 | daughterPi = "pi+"; |
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398 | } else { |
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399 | daughterPi = "pi-"; |
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400 | } |
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401 | if (fAnti) daughterSigma = "anti_" + daughterSigma; |
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402 | if (r>0.) { |
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403 | // create decay channel [parent BR #daughters] |
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404 | mode = new G4PhaseSpaceDecayChannel(nameParent, r, 2, |
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405 | daughterSigma,daughterPi); |
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406 | // add decay table |
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407 | decayTable->Insert(mode); |
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408 | } |
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409 | |
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410 | return decayTable; |
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411 | } |
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412 | |
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413 | |
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414 | G4DecayTable* G4ExcitedSigmaConstructor::AddSigmaStarPiMode( |
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415 | G4DecayTable* decayTable, const G4String& nameParent, |
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416 | G4double br, G4int iIso3, G4bool fAnti) |
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417 | { |
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418 | G4VDecayChannel* mode; |
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419 | |
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420 | |
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421 | G4String daughterSigma; |
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422 | G4String daughterPi; |
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423 | G4double r = 0.; |
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424 | |
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425 | // ------------ Sigma+ pi - ------------ |
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426 | // determine daughters |
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427 | if (iIso3== +2) { |
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428 | r = 0.; |
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429 | } else if (iIso3== 0) { |
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430 | daughterSigma = "sigma(1385)+"; |
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431 | r = br/2.; |
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432 | } else if (iIso3== -2) { |
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433 | daughterSigma = "sigma(1385)0"; |
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434 | r = br/2.; |
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435 | } |
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436 | if (!fAnti) { |
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437 | daughterPi = "pi-"; |
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438 | } else { |
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439 | daughterPi = "pi+"; |
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440 | } |
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441 | if (fAnti) daughterSigma = "anti_" + daughterSigma; |
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442 | if (r>0.) { |
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443 | // create decay channel [parent BR #daughters] |
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444 | mode = new G4PhaseSpaceDecayChannel(nameParent, r, 2, |
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445 | daughterSigma,daughterPi); |
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446 | // add decay table |
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447 | decayTable->Insert(mode); |
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448 | } |
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449 | // ------------ Sigma0 Pi0 ------------ |
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450 | // determine daughters |
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451 | if (iIso3== +2) { |
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452 | daughterSigma = "sigma(1385)+"; |
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453 | r = br/2.; |
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454 | } else if (iIso3== 0) { |
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455 | r = 0.; |
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456 | } else if (iIso3== -2) { |
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457 | daughterSigma = "sigma(1385)-"; |
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458 | r = br/2.; |
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459 | } |
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460 | daughterPi = "pi0"; |
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461 | if (fAnti) daughterSigma = "anti_" + daughterSigma; |
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462 | if (r>0.) { |
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463 | // create decay channel [parent BR #daughters] |
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464 | mode = new G4PhaseSpaceDecayChannel(nameParent, r, 2, |
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465 | daughterSigma,daughterPi); |
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466 | |
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467 | // add decay table |
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468 | decayTable->Insert(mode); |
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469 | } |
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470 | |
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471 | // ------------ Sigma- pi + ------------ |
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472 | // determine daughters |
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473 | if (iIso3== +2) { |
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474 | daughterSigma = "sigma(1385)0"; |
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475 | r = br/2.; |
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476 | } else if (iIso3== 0) { |
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477 | daughterSigma = "sigma(1385)-"; |
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478 | r = br/2.; |
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479 | } else if (iIso3== -2) { |
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480 | r = 0.; |
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481 | } |
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482 | if (!fAnti) { |
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483 | daughterPi = "pi+"; |
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484 | } else { |
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485 | daughterPi = "pi-"; |
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486 | } |
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487 | if (fAnti) daughterSigma = "anti_" + daughterSigma; |
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488 | if (r>0.) { |
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489 | // create decay channel [parent BR #daughters] |
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490 | |
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491 | mode = new G4PhaseSpaceDecayChannel(nameParent, r, 2, |
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492 | daughterSigma,daughterPi); |
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493 | // add decay table |
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494 | decayTable->Insert(mode); |
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495 | } |
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496 | |
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497 | return decayTable; |
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498 | } |
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499 | |
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500 | G4DecayTable* G4ExcitedSigmaConstructor::AddLambdaPiMode( |
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501 | G4DecayTable* decayTable, const G4String& nameParent, |
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502 | G4double br, G4int iIso3, G4bool fAnti) |
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503 | { |
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504 | G4VDecayChannel* mode; |
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505 | |
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506 | G4String daughterLambda = "lambda"; |
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507 | G4String daughterPi; |
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508 | |
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509 | // determine daughters |
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510 | if (iIso3== +2) { |
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511 | if (!fAnti) { |
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512 | daughterPi = "pi+"; |
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513 | } else { |
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514 | daughterPi = "pi-"; |
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515 | } |
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516 | } else if (iIso3== 0) { |
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517 | daughterPi = "pi0"; |
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518 | } else if (iIso3== -2) { |
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519 | if (!fAnti) { |
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520 | daughterPi = "pi-"; |
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521 | } else { |
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522 | daughterPi = "pi+"; |
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523 | } |
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524 | } |
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525 | if (fAnti) daughterLambda = "anti_" + daughterLambda; |
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526 | // create decay channel [parent BR #daughters] |
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527 | mode = new G4PhaseSpaceDecayChannel(nameParent, br, 2, |
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528 | daughterLambda, daughterPi); |
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529 | // add decay table |
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530 | decayTable->Insert(mode); |
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531 | |
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532 | return decayTable; |
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533 | } |
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534 | |
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535 | G4DecayTable* G4ExcitedSigmaConstructor::AddLambdaStarPiMode( |
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536 | G4DecayTable* decayTable, const G4String& nameParent, |
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537 | G4double br, G4int iIso3, G4bool fAnti) |
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538 | { |
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539 | G4VDecayChannel* mode; |
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540 | |
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541 | G4String daughterLambda = "lambda(1405)"; |
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542 | G4String daughterPi; |
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543 | |
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544 | // determine daughters |
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545 | if (iIso3== +2) { |
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546 | if (!fAnti) { |
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547 | daughterPi = "pi+"; |
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548 | } else { |
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549 | daughterPi = "pi-"; |
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550 | } |
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551 | } else if (iIso3== 0) { |
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552 | daughterPi = "pi0"; |
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553 | } else if (iIso3== -2) { |
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554 | if (!fAnti) { |
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555 | daughterPi = "pi-"; |
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556 | } else { |
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557 | daughterPi = "pi+"; |
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558 | } |
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559 | } |
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560 | |
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561 | if (fAnti) daughterLambda = "anti_" + daughterLambda; |
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562 | // create decay channel [parent BR #daughters] |
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563 | mode = new G4PhaseSpaceDecayChannel(nameParent, br, 2, |
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564 | daughterLambda,daughterPi); |
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565 | // add decay table |
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566 | decayTable->Insert(mode); |
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567 | |
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568 | return decayTable; |
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569 | } |
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570 | |
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571 | const char* G4ExcitedSigmaConstructor::name[] = { |
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572 | "sigma(1385)","sigma(1660)","sigma(1670)","sigma(1750)","sigma(1775)", |
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573 | "sigma(1915)","sigma(1940)","sigma(2030)" |
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574 | }; |
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575 | |
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576 | const G4double G4ExcitedSigmaConstructor::mass[] = { |
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577 | 1.3837*GeV, 1.660*GeV, 1.670*GeV, 1.750*GeV, 1.775*GeV, |
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578 | 1.915*GeV, 1.940*GeV, 2.030*GeV |
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579 | }; |
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580 | |
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581 | const G4double G4ExcitedSigmaConstructor::width[] = { |
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582 | 35.8*MeV, 100.0*MeV, 60.0*MeV, 90.0*MeV, 120.0*MeV, |
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583 | 120.0*MeV, 220.0*MeV, 180.0*MeV |
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584 | }; |
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585 | |
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586 | const G4int G4ExcitedSigmaConstructor::iSpin[] = { |
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587 | 3, 1, 3, 1, 5, |
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588 | 5, 3, 7 |
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589 | }; |
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590 | |
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591 | const G4int G4ExcitedSigmaConstructor::iParity[] = { |
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592 | +1, +1, -1, -1, -1, |
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593 | +1, -1, +1 |
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594 | }; |
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595 | |
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596 | |
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597 | const G4int G4ExcitedSigmaConstructor::encodingOffset[] = { |
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598 | 0, 10000, 10000, 20000, 0, |
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599 | 10000, 20000, 0 |
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600 | }; |
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601 | |
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602 | const G4double G4ExcitedSigmaConstructor::bRatio[ G4ExcitedSigmaConstructor::NStates ][ G4ExcitedSigmaConstructor::NumberOfDecayModes] = |
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603 | { |
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604 | { 0.0, 0.0, 0.12, 0.0, 0.88, 0.0, 0.0, 0.0}, |
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605 | { 0.30, 0.0, 0.35, 0.0, 0.35, 0.0, 0.0, 0.0}, |
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606 | { 0.15, 0.0, 0.70, 0.0, 0.15, 0.0, 0.0, 0.0}, |
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607 | { 0.40, 0.0, 0.05, 0.0, 0.0, 0.55, 0.0, 0.0}, |
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608 | { 0.40, 0.0, 0.04, 0.10, 0.23, 0.0, 0.23, 0.0}, |
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609 | { 0.15, 0.0, 0.40, 0.05, 0.40, 0.0, 0.0, 0.0}, |
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610 | { 0.10, 0.15, 0.15, 0.15, 0.15, 0.0, 0.15, 0.15}, |
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611 | { 0.20, 0.04, 0.10, 0.10, 0.20, 0.0, 0.18, 0.18} |
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612 | |
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613 | }; |
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614 | |
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615 | |
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616 | |
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617 | |
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618 | |
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619 | |
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620 | |
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621 | |
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622 | |
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623 | |
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624 | |
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