[1] | 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;} |
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| 537 | |
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| 538 | // Select flavour, colour and anticolour. |
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| 539 | virtual void setIdColAcol(); |
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| 540 | |
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| 541 | // Evaluate weight for decay angles. |
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| 542 | virtual double weightDecay( Event& process, int iResBeg, int iResEnd); |
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| 543 | |
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| 544 | // Info on the subprocess. |
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| 545 | virtual string name() const {return nameSave;} |
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| 546 | virtual int code() const {return codeSave;} |
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| 547 | virtual string inFlux() const {return "qg";} |
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| 548 | virtual int id3Mass() const {return idRes;} |
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| 549 | |
---|
| 550 | private: |
---|
| 551 | |
---|
| 552 | // Store standard prefactor. |
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| 553 | double widHgg, sigma, openFrac; |
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| 554 | int higgsType, codeSave, idRes; |
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| 555 | string nameSave; |
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| 556 | }; |
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| 557 | |
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| 558 | //========================================================================== |
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| 559 | |
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| 560 | // A derived class for q qbar -> H g (SM or BSM Higgs via heavy top loop). |
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| 561 | // (H can be H0 SM or H1, H2, A3 from BSM). |
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| 562 | |
---|
| 563 | class Sigma2qqbar2Hglt : public Sigma2Process { |
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| 564 | |
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| 565 | public: |
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| 566 | |
---|
| 567 | // Constructor. |
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| 568 | Sigma2qqbar2Hglt(int higgsTypeIn) : higgsType(higgsTypeIn) {} |
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| 569 | |
---|
| 570 | // Initialize process. |
---|
| 571 | virtual void initProc(); |
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| 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;} |
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| 578 | |
---|
| 579 | // Select flavour, colour and anticolour. |
---|
| 580 | virtual void setIdColAcol(); |
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| 581 | |
---|
| 582 | // Evaluate weight for decay angles. |
---|
| 583 | virtual double weightDecay( Event& process, int iResBeg, int iResEnd); |
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| 584 | |
---|
| 585 | // Info on the subprocess. |
---|
| 586 | virtual string name() const {return nameSave;} |
---|
| 587 | virtual int code() const {return codeSave;} |
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| 588 | virtual string inFlux() const {return "qqbarSame";} |
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| 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 | //========================================================================== |
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| 600 | |
---|
| 601 | // A derived class for f fbar' -> H+-. |
---|
| 602 | |
---|
| 603 | class Sigma1ffbar2Hchg : public Sigma1Process { |
---|
| 604 | |
---|
| 605 | public: |
---|
| 606 | |
---|
| 607 | // Constructor. |
---|
| 608 | Sigma1ffbar2Hchg() {} |
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| 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 |
---|