1 | // SusyCouplings.h is a part of the PYTHIA event generator. |
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2 | // Copyright (C) 2012 Torbjorn Sjostrand. |
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3 | // Main authors of this file: N. Desai, P. Skands |
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4 | // PYTHIA is licenced under the GNU GPL version 2, see COPYING for details. |
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5 | // Please respect the MCnet Guidelines, see GUIDELINES for details. |
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6 | |
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7 | // Header file for setup of common SUSY couplings. |
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8 | |
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9 | #ifndef Pythia8_SusyCouplings_H |
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10 | #define Pythia8_SusyCouplings_H |
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11 | |
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12 | #include "PythiaComplex.h" |
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13 | #include "Settings.h" |
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14 | #include "StandardModel.h" |
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15 | #include "SusyLesHouches.h" |
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16 | |
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17 | namespace Pythia8 { |
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18 | |
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19 | class ParticleData; |
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20 | |
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21 | //========================================================================== |
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22 | |
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23 | // CoupSUSY |
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24 | // Auxiliary class to compute and store various SM and SUSY couplings. |
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25 | |
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26 | class CoupSUSY : public Couplings{ |
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27 | |
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28 | public: |
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29 | |
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30 | // Constructor |
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31 | CoupSUSY() {isInit=false; isNMSSM = false; isSUSY=true;} |
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32 | |
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33 | // Initialize |
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34 | void initSUSY(SusyLesHouches* slhaPtrIn, Settings* settingsPtrIn, |
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35 | ParticleData* particleDataPtrIn); |
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36 | |
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37 | // Status flag. Flag for NMSSM. |
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38 | bool isInit, isNMSSM; |
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39 | |
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40 | // Z and W pole masses and widths |
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41 | double mWpole, wWpole, mZpole, wZpole; |
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42 | |
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43 | // Running masses and weak mixing angle |
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44 | // (default to pole values if no running available) |
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45 | double mW, mZ, sin2W, sinW, cosW; |
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46 | |
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47 | // Tanbeta |
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48 | double tanb, cosb, sinb; |
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49 | |
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50 | //Higgs-sector parameters |
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51 | double muHiggs, alphaHiggs, mAHiggs; |
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52 | |
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53 | // ~qq~g couplings |
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54 | complex LsddG[7][4], RsddG[7][4]; |
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55 | complex LsuuG[7][4], RsuuG[7][4]; |
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56 | // Assume generation index for Squark. Translate if PDG code instead. |
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57 | complex getLsqqG(int iGenSq, int idQ) {if (abs(iGenSq) > 1000000) |
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58 | iGenSq = 3*(abs(iGenSq)/2000000) + (abs(iGenSq)%10+1)/2; |
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59 | return (abs(idQ)%2 == 0) ? LsuuG[iGenSq][abs(idQ)/2] |
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60 | : LsddG[iGenSq][(abs(idQ)+1)/2] ;} |
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61 | complex getRsqqG(int iGenSq, int idQ) {if (abs(iGenSq) > 1000000) |
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62 | iGenSq = 3*(abs(iGenSq)/2000000) + (abs(iGenSq)%10+1)/2; |
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63 | return (abs(idQ)%2 == 0) ? RsuuG[iGenSq][abs(idQ)/2] |
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64 | : RsddG[iGenSq][(abs(idQ)+1)/2] ;} |
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65 | |
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66 | // ~chi0~chi0Z couplings |
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67 | complex OLpp[6][6], ORpp[6][6]; |
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68 | |
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69 | // ~chi+~chi-Z couplings |
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70 | complex OLp[3][3], ORp[3][3]; |
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71 | |
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72 | // ~chi0~chi+W couplings |
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73 | complex OL[6][3], OR[6][3]; |
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74 | |
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75 | // qqZ couplings |
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76 | double LqqZ[7], RqqZ[7]; |
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77 | |
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78 | // ~q~qZ couplings |
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79 | complex LsdsdZ[7][7], RsdsdZ[7][7]; |
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80 | complex LsusuZ[7][7], RsusuZ[7][7]; |
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81 | complex getLsqsqZ(int idSq1, int idSq2) { |
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82 | if (abs(idSq1)%2 != abs(idSq2)%2) return complex(0.0,0.0); |
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83 | int iGen1 = 3*(abs(idSq1)/2000000) + (abs(idSq1)%10+1)/2; |
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84 | int iGen2 = 3*(abs(idSq2)/2000000) + (abs(idSq2)%10+1)/2; |
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85 | return (abs(idSq1)%2 == 0) ? LsusuZ[iGen1][iGen2] : LsdsdZ[iGen1][iGen2];} |
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86 | complex getRsqsqZ(int idSq1, int idSq2) { |
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87 | if (abs(idSq1)%2 != abs(idSq2)%2) return complex(0.0,0.0); |
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88 | int iGen1 = 3*(abs(idSq1)/2000000) + (abs(idSq1)%10+1)/2; |
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89 | int iGen2 = 3*(abs(idSq2)/2000000) + (abs(idSq2)%10+1)/2; |
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90 | return (abs(idSq1)%2 == 0) ? RsusuZ[iGen1][iGen2] : RsdsdZ[iGen1][iGen2];} |
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91 | |
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92 | // udW couplings |
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93 | complex LudW[4][4], RudW[4][4]; |
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94 | |
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95 | // ~u~dW couplings |
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96 | complex LsusdW[7][7], RsusdW[7][7]; |
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97 | |
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98 | // ~qq~chi0 couplings |
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99 | complex LsddX[7][4][6], RsddX[7][4][6]; |
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100 | complex LsuuX[7][4][6], RsuuX[7][4][6]; |
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101 | complex getLsqqX(int iSq, int idQ, int iNeut) {return (abs(idQ)%2 == 0) |
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102 | ? LsuuX[iSq][abs(idQ)/2][iNeut] : LsddX[iSq][(abs(idQ)+1)/2][iNeut] ;} |
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103 | complex getRsqqX(int iSq, int idQ, int iNeut) {return (abs(idQ)%2 == 0) |
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104 | ? RsuuX[iSq][abs(idQ)/2][iNeut] : RsddX[iSq][(abs(idQ)+1)/2][iNeut] ;} |
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105 | |
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106 | // ~du~chi+ couplings |
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107 | complex LsduX[7][4][3], RsduX[7][4][3]; |
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108 | |
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109 | // ~ud~chi+ couplings |
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110 | complex LsudX[7][4][3], RsudX[7][4][3]; |
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111 | |
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112 | //llZ couplings |
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113 | double LllZ[7], RllZ[7]; |
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114 | |
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115 | //lvW couplings |
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116 | complex LlvW[4], RlvW[4]; |
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117 | |
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118 | // ~l~lZ couplings |
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119 | complex LslslZ[7][7],RslslZ[7][7]; |
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120 | complex LsvsvZ[7][7],RsvsvZ[7][7]; |
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121 | |
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122 | // ~l~vW couplings |
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123 | complex LslsvW[7][7], RslsvW[7][7]; |
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124 | |
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125 | // ~ll~chi0 couplings |
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126 | complex LsvvX[7][4][6], RsvvX[7][4][6]; |
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127 | complex LsllX[7][4][6], RsllX[7][4][6]; |
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128 | |
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129 | // ~vl~chi+ couplings |
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130 | complex LsvlX[7][4][3], RsvlX[7][4][3]; |
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131 | |
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132 | // ~lv~chi+ couplings |
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133 | complex LslvX[7][4][3], RslvX[7][4][3]; |
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134 | |
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135 | // RPV couplings |
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136 | double rvLLE[4][4][4], rvLQD[4][4][4], rvUDD[4][4][4]; |
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137 | // Flags for RPV couplings |
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138 | bool isLLE, isLQD, isUDD; |
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139 | |
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140 | //Squark mixing matrix: needed for RPV |
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141 | complex Rusq[7][7], Rdsq[7][7]; |
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142 | |
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143 | // Return neutralino, chargino, sup, sdown and slepton flavour codes. |
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144 | int idNeut(int idChi); |
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145 | int idChar(int idChi); |
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146 | int idSup(int iSup); |
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147 | int idSdown(int iSdown); |
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148 | int idSlep(int iSlep); |
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149 | |
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150 | //Reverse lookup for neutralinos and charginos |
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151 | int typeNeut(int idPDG); |
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152 | int typeChar(int idPDG); |
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153 | |
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154 | // Return a particle name, given the PDG code. |
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155 | string getName(int pdgCode); |
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156 | |
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157 | // Pointer to SLHA instance |
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158 | // Used in SusyResonanceWidths for checking if decay table exists |
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159 | SusyLesHouches* slhaPtr; |
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160 | |
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161 | private: |
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162 | // Debug flag |
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163 | static const bool DEBUG; |
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164 | |
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165 | |
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166 | // Pointer to the settings database. |
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167 | Settings* settingsPtr; |
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168 | |
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169 | // Pointer to the particle data table. |
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170 | ParticleData* particleDataPtr; |
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171 | |
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172 | }; |
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173 | |
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174 | //========================================================================== |
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175 | |
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176 | } // end namespace Pythia8 |
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177 | |
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178 | #endif // Pythia8_SusyCouplings_H |
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