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63ba5337 | 1 | // SusyCouplings.h is a part of the PYTHIA event generator. |
2 | // Copyright (C) 2012 Torbjorn Sjostrand. | |
3 | // Main authors of this file: N. Desai, P. Skands | |
4 | // PYTHIA is licenced under the GNU GPL version 2, see COPYING for details. | |
5 | // Please respect the MCnet Guidelines, see GUIDELINES for details. | |
6 | ||
7 | // Header file for setup of common SUSY couplings. | |
8 | ||
9 | #ifndef Pythia8_SusyCouplings_H | |
10 | #define Pythia8_SusyCouplings_H | |
11 | ||
12 | #include "PythiaComplex.h" | |
13 | #include "Settings.h" | |
14 | #include "StandardModel.h" | |
15 | #include "SusyLesHouches.h" | |
16 | ||
17 | namespace Pythia8 { | |
18 | ||
19 | class ParticleData; | |
20 | ||
21 | //========================================================================== | |
22 | ||
23 | // CoupSUSY | |
24 | // Auxiliary class to compute and store various SM and SUSY couplings. | |
25 | ||
26 | class CoupSUSY : public Couplings{ | |
27 | ||
28 | public: | |
29 | ||
30 | // Constructor | |
31 | CoupSUSY() {isInit=false; isNMSSM = false; isSUSY=true;} | |
32 | ||
33 | // Initialize | |
34 | void initSUSY(SusyLesHouches* slhaPtrIn, Settings* settingsPtrIn, | |
35 | ParticleData* particleDataPtrIn); | |
36 | ||
37 | // Status flag. Flag for NMSSM. | |
38 | bool isInit, isNMSSM; | |
39 | ||
40 | // Z and W pole masses and widths | |
41 | double mWpole, wWpole, mZpole, wZpole; | |
42 | ||
43 | // Running masses and weak mixing angle | |
44 | // (default to pole values if no running available) | |
45 | double mW, mZ, sin2W, sinW, cosW; | |
46 | ||
47 | // Tanbeta | |
48 | double tanb, cosb, sinb; | |
49 | ||
50 | //Higgs-sector parameters | |
51 | double muHiggs, alphaHiggs, mAHiggs; | |
52 | ||
53 | // ~qq~g couplings | |
54 | complex LsddG[7][4], RsddG[7][4]; | |
55 | complex LsuuG[7][4], RsuuG[7][4]; | |
56 | // Assume generation index for Squark. Translate if PDG code instead. | |
57 | complex getLsqqG(int iGenSq, int idQ) {if (abs(iGenSq) > 1000000) | |
58 | iGenSq = 3*(abs(iGenSq)/2000000) + (abs(iGenSq)%10+1)/2; | |
59 | return (abs(idQ)%2 == 0) ? LsuuG[iGenSq][abs(idQ)/2] | |
60 | : LsddG[iGenSq][(abs(idQ)+1)/2] ;} | |
61 | complex getRsqqG(int iGenSq, int idQ) {if (abs(iGenSq) > 1000000) | |
62 | iGenSq = 3*(abs(iGenSq)/2000000) + (abs(iGenSq)%10+1)/2; | |
63 | return (abs(idQ)%2 == 0) ? RsuuG[iGenSq][abs(idQ)/2] | |
64 | : RsddG[iGenSq][(abs(idQ)+1)/2] ;} | |
65 | ||
66 | // ~chi0~chi0Z couplings | |
67 | complex OLpp[6][6], ORpp[6][6]; | |
68 | ||
69 | // ~chi+~chi-Z couplings | |
70 | complex OLp[3][3], ORp[3][3]; | |
71 | ||
72 | // ~chi0~chi+W couplings | |
73 | complex OL[6][3], OR[6][3]; | |
74 | ||
75 | // qqZ couplings | |
76 | double LqqZ[7], RqqZ[7]; | |
77 | ||
78 | // ~q~qZ couplings | |
79 | complex LsdsdZ[7][7], RsdsdZ[7][7]; | |
80 | complex LsusuZ[7][7], RsusuZ[7][7]; | |
81 | complex getLsqsqZ(int idSq1, int idSq2) { | |
82 | if (abs(idSq1)%2 != abs(idSq2)%2) return complex(0.0,0.0); | |
83 | int iGen1 = 3*(abs(idSq1)/2000000) + (abs(idSq1)%10+1)/2; | |
84 | int iGen2 = 3*(abs(idSq2)/2000000) + (abs(idSq2)%10+1)/2; | |
85 | return (abs(idSq1)%2 == 0) ? LsusuZ[iGen1][iGen2] : LsdsdZ[iGen1][iGen2];} | |
86 | complex getRsqsqZ(int idSq1, int idSq2) { | |
87 | if (abs(idSq1)%2 != abs(idSq2)%2) return complex(0.0,0.0); | |
88 | int iGen1 = 3*(abs(idSq1)/2000000) + (abs(idSq1)%10+1)/2; | |
89 | int iGen2 = 3*(abs(idSq2)/2000000) + (abs(idSq2)%10+1)/2; | |
90 | return (abs(idSq1)%2 == 0) ? RsusuZ[iGen1][iGen2] : RsdsdZ[iGen1][iGen2];} | |
91 | ||
92 | // udW couplings | |
93 | complex LudW[4][4], RudW[4][4]; | |
94 | ||
95 | // ~u~dW couplings | |
96 | complex LsusdW[7][7], RsusdW[7][7]; | |
97 | ||
98 | // ~qq~chi0 couplings | |
99 | complex LsddX[7][4][6], RsddX[7][4][6]; | |
100 | complex LsuuX[7][4][6], RsuuX[7][4][6]; | |
101 | complex getLsqqX(int iSq, int idQ, int iNeut) {return (abs(idQ)%2 == 0) | |
102 | ? LsuuX[iSq][abs(idQ)/2][iNeut] : LsddX[iSq][(abs(idQ)+1)/2][iNeut] ;} | |
103 | complex getRsqqX(int iSq, int idQ, int iNeut) {return (abs(idQ)%2 == 0) | |
104 | ? RsuuX[iSq][abs(idQ)/2][iNeut] : RsddX[iSq][(abs(idQ)+1)/2][iNeut] ;} | |
105 | ||
106 | // ~du~chi+ couplings | |
107 | complex LsduX[7][4][3], RsduX[7][4][3]; | |
108 | ||
109 | // ~ud~chi+ couplings | |
110 | complex LsudX[7][4][3], RsudX[7][4][3]; | |
111 | ||
112 | //llZ couplings | |
113 | double LllZ[7], RllZ[7]; | |
114 | ||
115 | //lvW couplings | |
116 | complex LlvW[4], RlvW[4]; | |
117 | ||
118 | // ~l~lZ couplings | |
119 | complex LslslZ[7][7],RslslZ[7][7]; | |
120 | complex LsvsvZ[7][7],RsvsvZ[7][7]; | |
121 | ||
122 | // ~l~vW couplings | |
123 | complex LslsvW[7][7], RslsvW[7][7]; | |
124 | ||
125 | // ~ll~chi0 couplings | |
126 | complex LsvvX[7][4][6], RsvvX[7][4][6]; | |
127 | complex LsllX[7][4][6], RsllX[7][4][6]; | |
128 | ||
129 | // ~vl~chi+ couplings | |
130 | complex LsvlX[7][4][3], RsvlX[7][4][3]; | |
131 | ||
132 | // ~lv~chi+ couplings | |
133 | complex LslvX[7][4][3], RslvX[7][4][3]; | |
134 | ||
135 | // RPV couplings | |
136 | double rvLLE[4][4][4], rvLQD[4][4][4], rvUDD[4][4][4]; | |
137 | // Flags for RPV couplings | |
138 | bool isLLE, isLQD, isUDD; | |
139 | ||
140 | //Squark mixing matrix: needed for RPV | |
141 | complex Rusq[7][7], Rdsq[7][7]; | |
142 | ||
143 | // Return neutralino, chargino, sup, sdown and slepton flavour codes. | |
144 | int idNeut(int idChi); | |
145 | int idChar(int idChi); | |
146 | int idSup(int iSup); | |
147 | int idSdown(int iSdown); | |
148 | int idSlep(int iSlep); | |
149 | ||
150 | //Reverse lookup for neutralinos and charginos | |
151 | int typeNeut(int idPDG); | |
152 | int typeChar(int idPDG); | |
153 | ||
154 | // Return a particle name, given the PDG code. | |
155 | string getName(int pdgCode); | |
156 | ||
157 | // Pointer to SLHA instance | |
158 | // Used in SusyResonanceWidths for checking if decay table exists | |
159 | SusyLesHouches* slhaPtr; | |
160 | ||
161 | private: | |
162 | // Debug flag | |
163 | static const bool DEBUG; | |
164 | ||
165 | ||
166 | // Pointer to the settings database. | |
167 | Settings* settingsPtr; | |
168 | ||
169 | // Pointer to the particle data table. | |
170 | ParticleData* particleDataPtr; | |
171 | ||
172 | }; | |
173 | ||
174 | //========================================================================== | |
175 | ||
176 | } // end namespace Pythia8 | |
177 | ||
178 | #endif // Pythia8_SusyCouplings_H |