1 | // SigmaHiggs.h is a part of the PYTHIA event generator. |
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2 | // Copyright (C) 2012 Torbjorn Sjostrand. |
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3 | // Part of code written by Marc Montull, CERN summer student 2007. |
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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 Higgs process differential cross sections. |
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8 | // Contains classes derived from SigmaProcess via Sigma2Process. |
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9 | |
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10 | #ifndef Pythia8_SigmaHiggs_H |
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11 | #define Pythia8_SigmaHiggs_H |
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12 | |
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13 | #include "SigmaProcess.h" |
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14 | |
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15 | namespace Pythia8 { |
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16 | |
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17 | //========================================================================== |
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18 | |
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19 | // A derived class for f fbar -> H0 (SM), H1, H2 or A3 (BSM). |
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20 | |
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21 | class Sigma1ffbar2H : public Sigma1Process { |
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22 | |
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23 | public: |
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24 | |
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25 | // Constructor. |
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26 | Sigma1ffbar2H(int higgsTypeIn) : higgsType(higgsTypeIn) {} |
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27 | |
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28 | // Initialize process. |
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29 | virtual void initProc(); |
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30 | |
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31 | // Calculate flavour-independent parts of cross section. |
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32 | virtual void sigmaKin(); |
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33 | |
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34 | // Evaluate sigmaHat(sHat). |
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35 | virtual double sigmaHat(); |
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36 | |
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37 | // Select flavour, colour and anticolour. |
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38 | virtual void setIdColAcol(); |
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39 | |
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40 | // Evaluate weight for decay angles. |
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41 | virtual double weightDecay( Event& process, int iResBeg, int iResEnd); |
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42 | |
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43 | // Info on the subprocess. |
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44 | virtual string name() const {return nameSave;} |
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45 | virtual int code() const {return codeSave;} |
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46 | virtual string inFlux() const {return "ffbarSame";} |
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47 | virtual int resonanceA() const {return idRes;} |
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48 | |
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49 | private: |
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50 | |
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51 | // An H0, H1, H2 or A3 resonance object provides coupling |
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52 | // and propagator expressions. |
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53 | ParticleDataEntry* HResPtr; |
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54 | double mRes, GammaRes, m2Res, GamMRat, sigBW, widthOut; |
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55 | int higgsType, codeSave, idRes; |
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56 | string nameSave; |
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57 | }; |
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58 | |
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59 | //========================================================================== |
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60 | |
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61 | // A derived class for g g -> H0 (SM), H1, H2 or A3 (BSM). |
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62 | |
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63 | class Sigma1gg2H : public Sigma1Process { |
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64 | |
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65 | public: |
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66 | |
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67 | // Constructor. |
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68 | Sigma1gg2H(int higgsTypeIn) : higgsType(higgsTypeIn) {} |
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69 | |
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70 | // Initialize process. |
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71 | virtual void initProc(); |
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72 | |
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73 | // Calculate flavour-independent parts of cross section. |
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74 | virtual void sigmaKin(); |
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75 | |
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76 | // Evaluate sigmaHat(sHat). |
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77 | virtual double sigmaHat() {return sigma;} |
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78 | |
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79 | // Select flavour, colour and anticolour. |
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80 | virtual void setIdColAcol(); |
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81 | |
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82 | // Evaluate weight for decay angles. |
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83 | virtual double weightDecay( Event& process, int iResBeg, int iResEnd); |
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84 | |
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85 | // Info on the subprocess. |
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86 | virtual string name() const {return nameSave ;} |
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87 | virtual int code() const {return codeSave;} |
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88 | virtual string inFlux() const {return "gg";} |
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89 | virtual int resonanceA() const {return idRes;} |
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90 | |
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91 | private: |
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92 | |
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93 | // A H0, H1, H2 or A3 resonance object provides coupling |
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94 | // and propagator expressions. |
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95 | ParticleDataEntry* HResPtr; |
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96 | double mRes, GammaRes, m2Res, GamMRat, sigma; |
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97 | int higgsType, codeSave, idRes; |
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98 | string nameSave; |
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99 | }; |
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100 | |
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101 | //========================================================================== |
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102 | |
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103 | // A derived class for gamma gamma -> H0 (SM Higgs), H1, H2 or A3 (BSM Higgs). |
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104 | |
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105 | class Sigma1gmgm2H : public Sigma1Process { |
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106 | |
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107 | public: |
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108 | |
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109 | // Constructor. |
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110 | Sigma1gmgm2H(int higgsTypeIn) : higgsType(higgsTypeIn) {} |
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111 | |
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112 | // Initialize process. |
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113 | virtual void initProc(); |
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114 | |
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115 | // Calculate flavour-independent parts of cross section. |
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116 | virtual void sigmaKin(); |
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117 | |
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118 | // Evaluate sigmaHat(sHat). |
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119 | virtual double sigmaHat() {return sigma;} |
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120 | |
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121 | // Select flavour, colour and anticolour. |
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122 | virtual void setIdColAcol(); |
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123 | |
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124 | // Evaluate weight for decay angles. |
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125 | virtual double weightDecay( Event& process, int iResBeg, int iResEnd); |
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126 | |
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127 | // Info on the subprocess. |
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128 | virtual string name() const {return nameSave;} |
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129 | virtual int code() const {return codeSave;} |
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130 | virtual string inFlux() const {return "gmgm";} |
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131 | virtual int resonanceA() const {return idRes;} |
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132 | |
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133 | private: |
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134 | |
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135 | // A H0, H1, H2 or A3 resonance object provides coupling |
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136 | // and propagator expressions. |
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137 | ParticleDataEntry* HResPtr; |
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138 | double mRes, GammaRes, m2Res, GamMRat, sigma; |
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139 | int higgsType, codeSave, idRes; |
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140 | string nameSave; |
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141 | }; |
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142 | |
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143 | //========================================================================== |
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144 | |
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145 | // A derived class for f fbar -> H Z0. |
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146 | // (H can be H0 SM or H1, H2, A3 from BSM). |
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147 | class Sigma2ffbar2HZ : public Sigma2Process { |
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148 | |
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149 | public: |
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150 | |
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151 | // Constructor. |
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152 | Sigma2ffbar2HZ(int higgsTypeIn) : higgsType(higgsTypeIn) {} |
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153 | |
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154 | // Initialize process. |
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155 | virtual void initProc(); |
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156 | |
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157 | // Calculate flavour-independent parts of cross section. |
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158 | virtual void sigmaKin(); |
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159 | |
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160 | // Evaluate d(sigmaHat)/d(tHat). |
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161 | virtual double sigmaHat(); |
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162 | |
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163 | // Select flavour, colour and anticolour. |
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164 | virtual void setIdColAcol(); |
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165 | |
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166 | // Evaluate weight for decay angles. |
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167 | virtual double weightDecay( Event& process, int iResBeg, int iResEnd); |
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168 | |
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169 | // Info on the subprocess. |
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170 | virtual string name() const {return nameSave;} |
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171 | virtual int code() const {return codeSave;} |
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172 | virtual string inFlux() const {return "ffbarSame";} |
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173 | virtual bool isSChannel() const {return true;} |
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174 | virtual int id3Mass() const {return idRes;} |
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175 | virtual int id4Mass() const {return 23;} |
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176 | virtual int resonanceA() const {return 23;} |
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177 | virtual int gmZmode() const {return 2;} |
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178 | |
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179 | private: |
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180 | |
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181 | // Store Z0 mass and width. |
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182 | double mZ, widZ, mZS, mwZS, thetaWRat, sigma0, openFracPair, coup2Z; |
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183 | int higgsType, codeSave, idRes; |
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184 | string nameSave; |
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185 | }; |
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186 | |
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187 | //========================================================================== |
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188 | |
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189 | // A derived class for f fbar -> H W+- (Standard Model Higgs). |
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190 | // (H can be H0 SM or H1, H2, A3 from BSM). |
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191 | |
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192 | class Sigma2ffbar2HW : public Sigma2Process { |
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193 | |
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194 | public: |
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195 | |
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196 | // Constructor. |
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197 | Sigma2ffbar2HW(int higgsTypeIn) : higgsType(higgsTypeIn) {} |
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198 | |
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199 | // Initialize process. |
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200 | virtual void initProc(); |
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201 | |
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202 | // Calculate flavour-independent parts of cross section. |
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203 | virtual void sigmaKin(); |
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204 | |
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205 | // Evaluate d(sigmaHat)/d(tHat). |
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206 | virtual double sigmaHat(); |
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207 | |
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208 | // Select flavour, colour and anticolour. |
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209 | virtual void setIdColAcol(); |
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210 | |
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211 | // Evaluate weight for decay angles. |
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212 | virtual double weightDecay( Event& process, int iResBeg, int iResEnd); |
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213 | |
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214 | // Info on the subprocess. |
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215 | virtual string name() const {return nameSave;} |
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216 | virtual int code() const {return codeSave;} |
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217 | virtual string inFlux() const {return "ffbarChg";} |
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218 | virtual bool isSChannel() const {return true;} |
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219 | virtual int id3Mass() const {return idRes;} |
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220 | virtual int id4Mass() const {return 24;} |
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221 | virtual int resonanceA() const {return 24;} |
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222 | |
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223 | private: |
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224 | |
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225 | // Store W+- mass and width, and couplings. |
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226 | double mW, widW, mWS, mwWS, thetaWRat, sigma0, openFracPairPos, |
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227 | openFracPairNeg, coup2W; |
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228 | int higgsType, codeSave, idRes; |
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229 | string nameSave; |
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230 | }; |
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231 | |
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232 | //========================================================================== |
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233 | |
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234 | // A derived class for f f' -> H f f' (Z0 Z0 fusion of SM or BSM Higgs). |
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235 | // (H can be H0 SM or H1, H2, A3 from BSM). |
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236 | |
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237 | class Sigma3ff2HfftZZ : public Sigma3Process { |
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238 | |
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239 | public: |
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240 | |
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241 | // Constructor. |
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242 | Sigma3ff2HfftZZ(int higgsTypeIn) : higgsType(higgsTypeIn) {} |
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243 | |
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244 | // Initialize process. |
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245 | virtual void initProc(); |
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246 | |
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247 | // Calculate flavour-independent parts of cross section. |
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248 | virtual void sigmaKin(); |
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249 | |
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250 | // Evaluate sigmaHat(sHat). |
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251 | virtual double sigmaHat(); |
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252 | |
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253 | // Select flavour, colour and anticolour. |
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254 | virtual void setIdColAcol(); |
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255 | |
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256 | // Evaluate weight for decay angles. |
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257 | virtual double weightDecay( Event& process, int iResBeg, int iResEnd); |
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258 | |
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259 | // Info on the subprocess. |
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260 | virtual string name() const {return nameSave;} |
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261 | virtual int code() const {return codeSave;} |
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262 | virtual string inFlux() const {return "ff";} |
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263 | virtual int id3Mass() const {return idRes;} |
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264 | |
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265 | // Instructions for 3-body phase space with t-channel propagators. |
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266 | virtual int idTchan1() const {return 23;} |
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267 | virtual int idTchan2() const {return 23;} |
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268 | virtual double tChanFracPow1() const {return 0.05;} |
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269 | virtual double tChanFracPow2() const {return 0.9;} |
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270 | virtual bool useMirrorWeight() const {return true;} |
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271 | |
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272 | private: |
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273 | |
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274 | // Store standard factors. |
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275 | double mZS, prefac, sigma1, sigma2, openFrac, coup2Z; |
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276 | int higgsType, codeSave, idRes; |
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277 | string nameSave; |
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278 | }; |
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279 | |
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280 | //========================================================================== |
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281 | |
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282 | // A derived class for f_1 f_2 -> H f_3 f_4 (W+ W- fusion of SM or BSM Higgs). |
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283 | // (H can be H0 SM or H1, H2, A3 from BSM). |
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284 | |
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285 | class Sigma3ff2HfftWW : public Sigma3Process { |
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286 | |
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287 | public: |
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288 | |
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289 | // Constructor. |
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290 | Sigma3ff2HfftWW(int higgsTypeIn) : higgsType(higgsTypeIn) {} |
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291 | |
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292 | // Initialize process. |
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293 | virtual void initProc(); |
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294 | |
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295 | // Calculate flavour-independent parts of cross section. |
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296 | virtual void sigmaKin(); |
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297 | |
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298 | // Evaluate sigmaHat(sHat). |
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299 | virtual double sigmaHat(); |
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300 | |
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301 | // Select flavour, colour and anticolour. |
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302 | virtual void setIdColAcol(); |
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303 | |
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304 | // Evaluate weight for decay angles. |
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305 | virtual double weightDecay( Event& process, int iResBeg, int iResEnd); |
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306 | |
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307 | // Info on the subprocess. |
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308 | virtual string name() const {return nameSave;} |
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309 | virtual int code() const {return codeSave;} |
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310 | virtual string inFlux() const {return "ff";} |
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311 | virtual int id3Mass() const {return idRes;} |
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312 | |
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313 | // Instructions for 3-body phase space with t-channel propagators. |
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314 | virtual int idTchan1() const {return 24;} |
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315 | virtual int idTchan2() const {return 24;} |
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316 | virtual double tChanFracPow1() const {return 0.05;} |
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317 | virtual double tChanFracPow2() const {return 0.9;} |
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318 | virtual bool useMirrorWeight() const {return true;} |
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319 | |
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320 | private: |
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321 | |
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322 | // Store standard prefactor. |
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323 | double mWS, prefac, sigma0, openFrac, coup2W; |
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324 | int higgsType, codeSave, idRes; |
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325 | string nameSave; |
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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 | // A derived class for g g -> H Q Qbar (Q Qbar fusion of SM or BSM Higgs). |
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331 | // (H can be H0 SM or H1, H2, A3 from BSM). |
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332 | |
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333 | class Sigma3gg2HQQbar : public Sigma3Process { |
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334 | |
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335 | public: |
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336 | |
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337 | // Constructor. |
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338 | Sigma3gg2HQQbar(int idIn, int higgsTypeIn) : idNew(idIn), |
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339 | higgsType(higgsTypeIn) {} |
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340 | |
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341 | // Initialize process. |
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342 | virtual void initProc(); |
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343 | |
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344 | // Calculate flavour-independent parts of cross section. |
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345 | virtual void sigmaKin(); |
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346 | |
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347 | // Evaluate sigmaHat(sHat). |
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348 | virtual double sigmaHat() {return sigma;} |
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349 | |
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350 | // Select flavour, colour and anticolour. |
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351 | virtual void setIdColAcol(); |
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352 | |
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353 | // Evaluate weight for decay angles. |
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354 | virtual double weightDecay( Event& process, int iResBeg, int iResEnd); |
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355 | |
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356 | // Info on the subprocess. |
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357 | virtual string name() const {return nameSave;} |
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358 | virtual int code() const {return codeSave;} |
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359 | virtual string inFlux() const {return "gg";} |
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360 | virtual int id3Mass() const {return idRes;} |
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361 | virtual int id4Mass() const {return idNew;} |
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362 | virtual int id5Mass() const {return idNew;} |
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363 | |
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364 | // Instructions for 3-body phase space with t-channel propagators. |
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365 | virtual int idTchan1() const {return idNew;} |
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366 | virtual int idTchan2() const {return idNew;} |
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367 | virtual double tChanFracPow1() const {return 0.4;} |
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368 | virtual double tChanFracPow2() const {return 0.2;} |
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369 | virtual bool useMirrorWeight() const {return false;} |
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370 | |
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371 | private: |
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372 | |
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373 | // Store flavour-specific process information and standard prefactor. |
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374 | double prefac, sigma, openFracTriplet, coup2Q; |
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375 | int idNew, higgsType, codeSave, idRes; |
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376 | string nameSave; |
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377 | |
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378 | }; |
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379 | |
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380 | //========================================================================== |
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381 | |
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382 | // A derived class for q qbar -> H Q Qbar (Q Qbar fusion of SM or BSM Higgs). |
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383 | // (H can be H0 SM or H1, H2, A3 from BSM). |
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384 | |
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385 | class Sigma3qqbar2HQQbar : public Sigma3Process { |
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386 | |
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387 | public: |
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388 | |
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389 | // Constructor. |
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390 | Sigma3qqbar2HQQbar(int idIn, int higgsTypeIn) : idNew(idIn), |
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391 | higgsType(higgsTypeIn) {} |
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392 | |
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393 | // Initialize process. |
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394 | virtual void initProc(); |
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395 | |
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396 | // Calculate flavour-independent parts of cross section. |
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397 | virtual void sigmaKin(); |
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398 | |
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399 | // Evaluate sigmaHat(sHat). |
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400 | virtual double sigmaHat() {return sigma;} |
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401 | |
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402 | // Select flavour, colour and anticolour. |
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403 | virtual void setIdColAcol(); |
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404 | |
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405 | // Evaluate weight for decay angles. |
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406 | virtual double weightDecay( Event& process, int iResBeg, int iResEnd); |
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407 | |
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408 | // Info on the subprocess. |
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409 | virtual string name() const {return nameSave;} |
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410 | virtual int code() const {return codeSave;} |
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411 | virtual string inFlux() const {return "qqbarSame";} |
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412 | virtual int id3Mass() const {return idRes;} |
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413 | virtual int id4Mass() const {return idNew;} |
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414 | virtual int id5Mass() const {return idNew;} |
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415 | |
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416 | // Instructions for 3-body phase space with t-channel propagators. |
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417 | virtual int idTchan1() const {return idNew;} |
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418 | virtual int idTchan2() const {return idNew;} |
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419 | virtual double tChanFracPow1() const {return 0.4;} |
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420 | virtual double tChanFracPow2() const {return 0.2;} |
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421 | virtual bool useMirrorWeight() const {return false;} |
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422 | |
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423 | private: |
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424 | |
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425 | // Store flavour-specific process information and standard prefactor. |
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426 | double prefac, sigma, openFracTriplet, coup2Q; |
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427 | int idNew, higgsType, codeSave, idRes; |
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428 | string nameSave; |
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429 | |
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430 | }; |
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431 | |
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432 | //========================================================================== |
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433 | |
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434 | // A derived class for q g -> H q (SM or BSM Higgs). |
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435 | // (H can be H0 SM or H1, H2, A3 from BSM). |
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436 | |
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437 | class Sigma2qg2Hq : public Sigma2Process { |
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438 | |
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439 | public: |
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440 | |
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441 | // Constructor. |
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442 | Sigma2qg2Hq(int idIn, int higgsTypeIn) : idNew(idIn), |
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443 | higgsType(higgsTypeIn) {} |
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444 | |
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445 | // Initialize process. |
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446 | virtual void initProc(); |
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447 | |
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448 | // Calculate flavour-independent parts of cross section. |
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449 | virtual void sigmaKin(); |
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450 | |
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451 | // Evaluate sigmaHat(sHat). |
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452 | virtual double sigmaHat(); |
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453 | |
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454 | // Select flavour, colour and anticolour. |
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455 | virtual void setIdColAcol(); |
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456 | |
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457 | // Evaluate weight for decay angles. |
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458 | virtual double weightDecay( Event& process, int iResBeg, int iResEnd); |
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459 | |
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460 | // Info on the subprocess. |
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461 | virtual string name() const {return nameSave;} |
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462 | virtual int code() const {return codeSave;} |
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463 | virtual string inFlux() const {return "qg";} |
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464 | virtual int id3Mass() const {return idRes;} |
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465 | virtual int id4Mass() const {return idNew;} |
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466 | |
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467 | private: |
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468 | |
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469 | // Store flavour-specific process information and standard prefactor. |
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470 | double m2W, thetaWRat, sigma, openFrac; |
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471 | int idNew, higgsType, codeSave, idRes; |
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472 | string nameSave; |
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473 | |
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474 | }; |
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475 | |
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476 | //========================================================================== |
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477 | |
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478 | // A derived class for g g -> H0 g (SM or BSM Higgs via heavy top loop). |
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479 | // (H can be H0 SM or H1, H2, A3 from BSM). |
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480 | |
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481 | class Sigma2gg2Hglt : public Sigma2Process { |
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482 | |
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483 | public: |
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484 | |
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485 | // Constructor. |
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486 | Sigma2gg2Hglt(int higgsTypeIn) : higgsType(higgsTypeIn) {} |
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487 | |
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488 | // Initialize process. |
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489 | virtual void initProc(); |
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490 | |
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491 | // Calculate flavour-independent parts of cross section. |
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492 | virtual void sigmaKin(); |
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493 | |
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494 | // Evaluate d(sigmaHat)/d(tHat). |
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495 | virtual double sigmaHat() {return sigma;} |
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496 | |
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497 | // Select flavour, colour and anticolour. |
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498 | virtual void setIdColAcol(); |
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499 | |
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500 | // Evaluate weight for decay angles. |
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501 | virtual double weightDecay( Event& process, int iResBeg, int iResEnd); |
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502 | |
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503 | // Info on the subprocess. |
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504 | virtual string name() const {return nameSave;} |
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505 | virtual int code() const {return codeSave;} |
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506 | virtual string inFlux() const {return "gg";} |
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507 | virtual int id3Mass() const {return idRes;} |
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508 | |
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509 | private: |
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510 | |
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511 | // Store standard prefactor. |
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512 | double widHgg, sigma, openFrac; |
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513 | int higgsType, codeSave, idRes; |
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514 | string nameSave; |
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515 | }; |
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516 | |
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517 | //========================================================================== |
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518 | |
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519 | // A derived class for q g -> H q (SM or BSM Higgs via heavy top loop). |
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520 | // (H can be H0 SM or H1, H2, A3 from BSM). |
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521 | |
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522 | class Sigma2qg2Hqlt : public Sigma2Process { |
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523 | |
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524 | public: |
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525 | |
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526 | // Constructor. |
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527 | Sigma2qg2Hqlt(int higgsTypeIn) : higgsType(higgsTypeIn) {} |
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528 | |
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529 | // Initialize process. |
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530 | virtual void initProc(); |
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531 | |
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532 | // Calculate flavour-independent parts of cross section. |
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533 | virtual void sigmaKin(); |
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534 | |
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535 | // Evaluate d(sigmaHat)/d(tHat). |
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536 | virtual double sigmaHat() {return sigma;} |
---|
537 | |
---|
538 | // Select flavour, colour and anticolour. |
---|
539 | virtual void setIdColAcol(); |
---|
540 | |
---|
541 | // Evaluate weight for decay angles. |
---|
542 | virtual double weightDecay( Event& process, int iResBeg, int iResEnd); |
---|
543 | |
---|
544 | // Info on the subprocess. |
---|
545 | virtual string name() const {return nameSave;} |
---|
546 | virtual int code() const {return codeSave;} |
---|
547 | virtual string inFlux() const {return "qg";} |
---|
548 | virtual int id3Mass() const {return idRes;} |
---|
549 | |
---|
550 | private: |
---|
551 | |
---|
552 | // Store standard prefactor. |
---|
553 | double widHgg, sigma, openFrac; |
---|
554 | int higgsType, codeSave, idRes; |
---|
555 | string nameSave; |
---|
556 | }; |
---|
557 | |
---|
558 | //========================================================================== |
---|
559 | |
---|
560 | // A derived class for q qbar -> H g (SM or BSM Higgs via heavy top loop). |
---|
561 | // (H can be H0 SM or H1, H2, A3 from BSM). |
---|
562 | |
---|
563 | class Sigma2qqbar2Hglt : public Sigma2Process { |
---|
564 | |
---|
565 | public: |
---|
566 | |
---|
567 | // Constructor. |
---|
568 | Sigma2qqbar2Hglt(int higgsTypeIn) : higgsType(higgsTypeIn) {} |
---|
569 | |
---|
570 | // Initialize process. |
---|
571 | virtual void initProc(); |
---|
572 | |
---|
573 | // Calculate flavour-independent parts of cross section. |
---|
574 | virtual void sigmaKin(); |
---|
575 | |
---|
576 | // Evaluate d(sigmaHat)/d(tHat). |
---|
577 | virtual double sigmaHat() {return sigma;} |
---|
578 | |
---|
579 | // Select flavour, colour and anticolour. |
---|
580 | virtual void setIdColAcol(); |
---|
581 | |
---|
582 | // Evaluate weight for decay angles. |
---|
583 | virtual double weightDecay( Event& process, int iResBeg, int iResEnd); |
---|
584 | |
---|
585 | // Info on the subprocess. |
---|
586 | virtual string name() const {return nameSave;} |
---|
587 | virtual int code() const {return codeSave;} |
---|
588 | virtual string inFlux() const {return "qqbarSame";} |
---|
589 | virtual int id3Mass() const {return idRes;} |
---|
590 | |
---|
591 | private: |
---|
592 | |
---|
593 | // Store standard prefactor. |
---|
594 | double widHgg, sigma, openFrac; |
---|
595 | int higgsType, codeSave, idRes; |
---|
596 | string nameSave; |
---|
597 | }; |
---|
598 | |
---|
599 | //========================================================================== |
---|
600 | |
---|
601 | // A derived class for f fbar' -> H+-. |
---|
602 | |
---|
603 | class Sigma1ffbar2Hchg : public Sigma1Process { |
---|
604 | |
---|
605 | public: |
---|
606 | |
---|
607 | // Constructor. |
---|
608 | Sigma1ffbar2Hchg() {} |
---|
609 | |
---|
610 | // Initialize process. |
---|
611 | virtual void initProc(); |
---|
612 | |
---|
613 | // Calculate flavour-independent parts of cross section. |
---|
614 | virtual void sigmaKin(); |
---|
615 | |
---|
616 | // Evaluate sigmaHat(sHat). |
---|
617 | virtual double sigmaHat(); |
---|
618 | |
---|
619 | // Select flavour, colour and anticolour. |
---|
620 | virtual void setIdColAcol(); |
---|
621 | |
---|
622 | // Evaluate weight for decay angles. |
---|
623 | virtual double weightDecay( Event& process, int iResBeg, int iResEnd); |
---|
624 | |
---|
625 | // Info on the subprocess. |
---|
626 | virtual string name() const {return "f fbar' -> H+-";} |
---|
627 | virtual int code() const {return 961;} |
---|
628 | virtual string inFlux() const {return "ffbarChg";} |
---|
629 | virtual int resonanceA() const {return 37;} |
---|
630 | |
---|
631 | private: |
---|
632 | |
---|
633 | // A H0 resonance object provides coupling and propagator expressions. |
---|
634 | ParticleDataEntry* HResPtr; |
---|
635 | double mRes, GammaRes, m2Res, GamMRat, m2W, thetaWRat, tan2Beta, sigBW, |
---|
636 | widthOutPos, widthOutNeg; |
---|
637 | |
---|
638 | }; |
---|
639 | |
---|
640 | //========================================================================== |
---|
641 | |
---|
642 | // A derived class for q g -> H+- q'. |
---|
643 | |
---|
644 | class Sigma2qg2Hchgq : public Sigma2Process { |
---|
645 | |
---|
646 | public: |
---|
647 | |
---|
648 | // Constructor. |
---|
649 | Sigma2qg2Hchgq(int idIn, int codeIn, string nameIn) : idNew(idIn), |
---|
650 | codeSave(codeIn), nameSave(nameIn) {} |
---|
651 | |
---|
652 | // Initialize process. |
---|
653 | virtual void initProc(); |
---|
654 | |
---|
655 | // Calculate flavour-independent parts of cross section. |
---|
656 | virtual void sigmaKin(); |
---|
657 | |
---|
658 | // Evaluate sigmaHat(sHat). |
---|
659 | virtual double sigmaHat(); |
---|
660 | |
---|
661 | // Select flavour, colour and anticolour. |
---|
662 | virtual void setIdColAcol(); |
---|
663 | |
---|
664 | // Evaluate weight for decay angles. |
---|
665 | virtual double weightDecay( Event& process, int iResBeg, int iResEnd); |
---|
666 | |
---|
667 | // Info on the subprocess. |
---|
668 | virtual string name() const {return nameSave;} |
---|
669 | virtual int code() const {return codeSave;} |
---|
670 | virtual string inFlux() const {return "qg";} |
---|
671 | virtual int id3Mass() const {return 37;} |
---|
672 | virtual int id4Mass() const {return idNew;} |
---|
673 | |
---|
674 | private: |
---|
675 | |
---|
676 | // Store flavour-specific process information and standard prefactor. |
---|
677 | int idNew, codeSave, idOld, idUp, idDn; |
---|
678 | string nameSave; |
---|
679 | double m2W, thetaWRat, tan2Beta, sigma, openFracPos, openFracNeg; |
---|
680 | |
---|
681 | }; |
---|
682 | |
---|
683 | //========================================================================== |
---|
684 | |
---|
685 | // A derived class for f fbar -> A0(H_3) h0(H_1) or A0(H_3) H0(H_2). |
---|
686 | |
---|
687 | class Sigma2ffbar2A3H12 : public Sigma2Process { |
---|
688 | |
---|
689 | public: |
---|
690 | |
---|
691 | // Constructor. |
---|
692 | Sigma2ffbar2A3H12(int higgsTypeIn) : higgsType(higgsTypeIn) {} |
---|
693 | |
---|
694 | // Initialize process. |
---|
695 | virtual void initProc(); |
---|
696 | |
---|
697 | // Calculate flavour-independent parts of cross section. |
---|
698 | virtual void sigmaKin(); |
---|
699 | |
---|
700 | // Evaluate sigmaHat(sHat). |
---|
701 | virtual double sigmaHat(); |
---|
702 | |
---|
703 | // Select flavour, colour and anticolour. |
---|
704 | virtual void setIdColAcol(); |
---|
705 | |
---|
706 | // Evaluate weight for decay angles. |
---|
707 | virtual double weightDecay( Event& process, int iResBeg, int iResEnd); |
---|
708 | |
---|
709 | // Info on the subprocess. |
---|
710 | virtual string name() const {return nameSave;} |
---|
711 | virtual int code() const {return codeSave;} |
---|
712 | virtual string inFlux() const {return "ffbarSame";} |
---|
713 | virtual int id3Mass() const {return 36;} |
---|
714 | virtual int id4Mass() const {return higgs12;} |
---|
715 | |
---|
716 | private: |
---|
717 | |
---|
718 | // Store flavour-specific process information and standard prefactor. |
---|
719 | int higgsType, higgs12, codeSave; |
---|
720 | string nameSave; |
---|
721 | double coupZA3H12, m2Z, mGammaZ, thetaWRat, openFrac, sigma0; |
---|
722 | |
---|
723 | }; |
---|
724 | |
---|
725 | //========================================================================== |
---|
726 | |
---|
727 | // A derived class for f fbar -> H+- h0(H_1) or H+- H0(H_2). |
---|
728 | |
---|
729 | class Sigma2ffbar2HchgH12 : public Sigma2Process { |
---|
730 | |
---|
731 | public: |
---|
732 | |
---|
733 | // Constructor. |
---|
734 | Sigma2ffbar2HchgH12(int higgsTypeIn) : higgsType(higgsTypeIn) {} |
---|
735 | |
---|
736 | // Initialize process. |
---|
737 | virtual void initProc(); |
---|
738 | |
---|
739 | // Calculate flavour-independent parts of cross section. |
---|
740 | virtual void sigmaKin(); |
---|
741 | |
---|
742 | // Evaluate sigmaHat(sHat). |
---|
743 | virtual double sigmaHat(); |
---|
744 | |
---|
745 | // Select flavour, colour and anticolour. |
---|
746 | virtual void setIdColAcol(); |
---|
747 | |
---|
748 | // Evaluate weight for decay angles. |
---|
749 | virtual double weightDecay( Event& process, int iResBeg, int iResEnd); |
---|
750 | |
---|
751 | // Info on the subprocess. |
---|
752 | virtual string name() const {return nameSave;} |
---|
753 | virtual int code() const {return codeSave;} |
---|
754 | virtual string inFlux() const {return "ffbarChg";} |
---|
755 | virtual int id3Mass() const {return 37;} |
---|
756 | virtual int id4Mass() const {return higgs12;} |
---|
757 | |
---|
758 | private: |
---|
759 | |
---|
760 | // Store flavour-specific process information and standard prefactor. |
---|
761 | int higgsType, higgs12, codeSave; |
---|
762 | string nameSave; |
---|
763 | double coupWHchgH12, m2W, mGammaW, thetaWRat, openFracPos, openFracNeg, |
---|
764 | sigma0; |
---|
765 | |
---|
766 | }; |
---|
767 | |
---|
768 | //========================================================================== |
---|
769 | |
---|
770 | // A derived class for f fbar -> H+ H-. |
---|
771 | |
---|
772 | class Sigma2ffbar2HposHneg : public Sigma2Process { |
---|
773 | |
---|
774 | public: |
---|
775 | |
---|
776 | // Constructor. |
---|
777 | Sigma2ffbar2HposHneg() {} |
---|
778 | |
---|
779 | // Initialize process. |
---|
780 | virtual void initProc(); |
---|
781 | |
---|
782 | // Calculate flavour-independent parts of cross section. |
---|
783 | virtual void sigmaKin(); |
---|
784 | |
---|
785 | // Evaluate sigmaHat(sHat). |
---|
786 | virtual double sigmaHat(); |
---|
787 | |
---|
788 | // Select flavour, colour and anticolour. |
---|
789 | virtual void setIdColAcol(); |
---|
790 | |
---|
791 | // Evaluate weight for decay angles. |
---|
792 | virtual double weightDecay( Event& process, int iResBeg, int iResEnd); |
---|
793 | |
---|
794 | // Info on the subprocess. |
---|
795 | virtual string name() const {return "f fbar -> H+ H-";} |
---|
796 | virtual int code() const {return 1085;} |
---|
797 | virtual string inFlux() const {return "ffbarSame";} |
---|
798 | virtual int id3Mass() const {return 37;} |
---|
799 | virtual int id4Mass() const {return 37;} |
---|
800 | |
---|
801 | private: |
---|
802 | |
---|
803 | // Store flavour-specific process information and standard prefactor. |
---|
804 | double m2Z, mGammaZ, thetaWRat, eH, lH, openFrac, gamSig, intSig, resSig; |
---|
805 | |
---|
806 | }; |
---|
807 | |
---|
808 | //========================================================================== |
---|
809 | |
---|
810 | } // end namespace Pythia8 |
---|
811 | |
---|
812 | #endif // Pythia8_SigmaHiggs_H |
---|