1 | // SusyResonanceWidths.h is a part of the PYTHIA event generator. |
---|
2 | // Copyright (C) 2012 Torbjorn Sjostrand |
---|
3 | // Main author of this file: N. Desai |
---|
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 resonance properties: dynamical widths etc. |
---|
8 | // SusyResonanceWidths: base class for all SUSY resonances. |
---|
9 | |
---|
10 | #ifndef Pythia8_SusyResonanceWidths_H |
---|
11 | #define Pythia8_SusyResonanceWidths_H |
---|
12 | |
---|
13 | #include "ResonanceWidths.h" |
---|
14 | #include "SusyCouplings.h" |
---|
15 | |
---|
16 | namespace Pythia8 { |
---|
17 | |
---|
18 | class ParticleData; |
---|
19 | |
---|
20 | //========================================================================== |
---|
21 | |
---|
22 | class WidthFunction { |
---|
23 | |
---|
24 | public: |
---|
25 | |
---|
26 | // Constructor and destructor. |
---|
27 | WidthFunction() { }; |
---|
28 | virtual ~WidthFunction() { }; |
---|
29 | |
---|
30 | void init( ParticleData* particleDataPtrIn, CoupSUSY* coupSUSYPtrIn); |
---|
31 | |
---|
32 | virtual void setInternal(int idResIn, int id1In, int id2In, int id3In, |
---|
33 | int idIntIn, int) {setInternal2(idResIn, id1In, id2In, id3In, idIntIn);} |
---|
34 | |
---|
35 | virtual double function(double m12); |
---|
36 | virtual double function(double m12, double m23); |
---|
37 | |
---|
38 | protected: |
---|
39 | |
---|
40 | void setInternal2(int idResIn, int id1In, int id2In, int id3In, int idIntIn); |
---|
41 | |
---|
42 | ParticleData* particleDataPtr; |
---|
43 | CoupSUSY* coupSUSYPtr; |
---|
44 | int id1,id2,id3; |
---|
45 | |
---|
46 | // Variables for 3-body decays |
---|
47 | double mRes, mInt, gammaInt, m1,m2,m3; |
---|
48 | int idRes, idInt,iSq,iQ,iX; |
---|
49 | bool isSqDown; |
---|
50 | |
---|
51 | }; |
---|
52 | |
---|
53 | //========================================================================== |
---|
54 | |
---|
55 | class Psi: public WidthFunction { |
---|
56 | |
---|
57 | public: |
---|
58 | |
---|
59 | // Destructor. |
---|
60 | virtual ~Psi() { }; |
---|
61 | |
---|
62 | virtual void setInternal(int idResIn, int id1In, int id2In, int id3In, |
---|
63 | int idIntIn, int); |
---|
64 | virtual double function(double m12); |
---|
65 | |
---|
66 | }; |
---|
67 | |
---|
68 | //========================================================================== |
---|
69 | |
---|
70 | class Upsilon: public WidthFunction { |
---|
71 | |
---|
72 | public: |
---|
73 | |
---|
74 | // Destructor. |
---|
75 | virtual ~Upsilon() { }; |
---|
76 | |
---|
77 | virtual void setInternal(int idResIn, int id1In, int id2In, int id3In, |
---|
78 | int idIntIn, int idInt2); |
---|
79 | virtual double function(double m12); |
---|
80 | |
---|
81 | protected: |
---|
82 | |
---|
83 | int iSq2, idInt2; |
---|
84 | double mInt2, gammaInt2; |
---|
85 | |
---|
86 | }; |
---|
87 | |
---|
88 | //========================================================================== |
---|
89 | |
---|
90 | class Phi: public WidthFunction { |
---|
91 | |
---|
92 | public: |
---|
93 | |
---|
94 | // Destructor. |
---|
95 | virtual ~Phi() { }; |
---|
96 | |
---|
97 | virtual void setInternal(int idResIn, int id1In, int id2In, int id3In, |
---|
98 | int idIntIn, int idInt2); |
---|
99 | virtual double function(double m12sqIn); |
---|
100 | |
---|
101 | protected: |
---|
102 | |
---|
103 | int iSq2, idInt2; |
---|
104 | double mInt2, gammaInt2, m12sq; |
---|
105 | |
---|
106 | private: |
---|
107 | |
---|
108 | double function2(double m23sq); |
---|
109 | double integrateGauss(double m23min, double m23max, double tol); |
---|
110 | |
---|
111 | }; |
---|
112 | |
---|
113 | //========================================================================== |
---|
114 | |
---|
115 | class SUSYResonanceWidths : public ResonanceWidths{ |
---|
116 | |
---|
117 | public: |
---|
118 | |
---|
119 | SUSYResonanceWidths() {} |
---|
120 | |
---|
121 | // Return particle type |
---|
122 | int typeNeut(int idPDG); |
---|
123 | int typeChar(int idPDG); |
---|
124 | |
---|
125 | protected: |
---|
126 | |
---|
127 | virtual bool init(Info* infoPtrIn, Settings* settingsPtrIn, |
---|
128 | ParticleData* particleDataPtrIn, Couplings* couplingsPtrIn); |
---|
129 | |
---|
130 | // Gaussian integrator |
---|
131 | double integrateGauss( WidthFunction* widthFn, double, double, double); |
---|
132 | |
---|
133 | // SUSY couplings |
---|
134 | CoupSUSY* coupSUSYPtr; |
---|
135 | |
---|
136 | static const bool DEBUG; |
---|
137 | |
---|
138 | }; |
---|
139 | |
---|
140 | //========================================================================== |
---|
141 | |
---|
142 | // The ResonanceSquark class handles the Squark resonances. |
---|
143 | |
---|
144 | class ResonanceSquark : public SUSYResonanceWidths { |
---|
145 | |
---|
146 | public: |
---|
147 | |
---|
148 | // Constructor. |
---|
149 | ResonanceSquark(int idResIn) {initBasic(idResIn);} |
---|
150 | |
---|
151 | private: |
---|
152 | |
---|
153 | // Locally stored properties and couplings. |
---|
154 | |
---|
155 | // Initialize constants. |
---|
156 | virtual void initConstants(); |
---|
157 | |
---|
158 | // Calculate various common prefactors for the current mass. |
---|
159 | virtual void calcPreFac(bool = false); |
---|
160 | |
---|
161 | // Caclulate width for currently considered channel. |
---|
162 | virtual void calcWidth(bool calledFromInit = false); |
---|
163 | |
---|
164 | double s2W; |
---|
165 | |
---|
166 | }; |
---|
167 | |
---|
168 | //========================================================================== |
---|
169 | |
---|
170 | // The ResonanceGluino class handles the Gluino resonances. |
---|
171 | |
---|
172 | class ResonanceGluino : public SUSYResonanceWidths { |
---|
173 | |
---|
174 | public: |
---|
175 | |
---|
176 | // Constructor. |
---|
177 | ResonanceGluino(int idResIn) {initBasic(idResIn);} |
---|
178 | |
---|
179 | private: |
---|
180 | |
---|
181 | // Locally stored properties and couplings. |
---|
182 | |
---|
183 | // Initialize constants. |
---|
184 | virtual void initConstants(); |
---|
185 | |
---|
186 | // Calculate various common prefactors for the current mass. |
---|
187 | virtual void calcPreFac(bool = false); |
---|
188 | |
---|
189 | // Caclulate width for currently considered channel. |
---|
190 | virtual void calcWidth(bool calledFromInit = false); |
---|
191 | |
---|
192 | }; |
---|
193 | |
---|
194 | //========================================================================== |
---|
195 | |
---|
196 | // The ResonanceNeut class handles the Neutralino resonances. |
---|
197 | |
---|
198 | class ResonanceNeut : public SUSYResonanceWidths { |
---|
199 | |
---|
200 | public: |
---|
201 | |
---|
202 | // Constructor. |
---|
203 | ResonanceNeut(int idResIn) {initBasic(idResIn);} |
---|
204 | |
---|
205 | private: |
---|
206 | |
---|
207 | // Locally stored properties and couplings. |
---|
208 | double kinFac2; |
---|
209 | |
---|
210 | // Initialize constants. |
---|
211 | virtual void initConstants(); |
---|
212 | |
---|
213 | // Calculate various common prefactors for the current mass. |
---|
214 | virtual void calcPreFac(bool = false); |
---|
215 | |
---|
216 | // Caclulate width for currently considered channel. |
---|
217 | virtual void calcWidth(bool calledFromInit = false); |
---|
218 | |
---|
219 | double s2W; |
---|
220 | |
---|
221 | // Functions for 3-body decays |
---|
222 | Psi psi; |
---|
223 | Phi phi; |
---|
224 | Upsilon upsil; |
---|
225 | |
---|
226 | }; |
---|
227 | |
---|
228 | //========================================================================== |
---|
229 | |
---|
230 | // The ResonanceChar class handles the Chargino resonances. |
---|
231 | |
---|
232 | class ResonanceChar : public SUSYResonanceWidths { |
---|
233 | |
---|
234 | public: |
---|
235 | |
---|
236 | // Constructor. |
---|
237 | ResonanceChar(int idResIn) {initBasic(idResIn);} |
---|
238 | |
---|
239 | private: |
---|
240 | |
---|
241 | // Locally stored properties and couplings. |
---|
242 | double kinFac2; |
---|
243 | |
---|
244 | // Initialize constants. |
---|
245 | virtual void initConstants(); |
---|
246 | |
---|
247 | // Calculate various common prefactors for the current mass. |
---|
248 | virtual void calcPreFac(bool = false); |
---|
249 | |
---|
250 | // Caclulate width for currently considered channel. |
---|
251 | virtual void calcWidth(bool calledFromInit = false); |
---|
252 | |
---|
253 | double s2W; |
---|
254 | |
---|
255 | //Functions for 3-body decays |
---|
256 | Psi psi; |
---|
257 | Phi phi; |
---|
258 | Upsilon upsil; |
---|
259 | |
---|
260 | }; |
---|
261 | |
---|
262 | //========================================================================== |
---|
263 | |
---|
264 | // The ResonanceSlepton class handles the Slepton/Sneutrino resonances. |
---|
265 | |
---|
266 | class ResonanceSlepton : public SUSYResonanceWidths { |
---|
267 | |
---|
268 | public: |
---|
269 | |
---|
270 | // Constructor. |
---|
271 | ResonanceSlepton(int idResIn) {initBasic(idResIn);} |
---|
272 | |
---|
273 | private: |
---|
274 | |
---|
275 | // Locally stored properties and couplings. |
---|
276 | |
---|
277 | // Initialize constants. |
---|
278 | virtual void initConstants(); |
---|
279 | |
---|
280 | // Calculate various common prefactors for the current mass. |
---|
281 | virtual void calcPreFac(bool = false); |
---|
282 | |
---|
283 | // Calculate width for currently considered channel. |
---|
284 | virtual void calcWidth(bool calledFromInit = false); |
---|
285 | |
---|
286 | double s2W; |
---|
287 | |
---|
288 | }; |
---|
289 | |
---|
290 | //========================================================================== |
---|
291 | |
---|
292 | } // end namespace Pythia8 |
---|
293 | |
---|
294 | #endif // end Pythia8_SusyResonanceWidths_H |
---|