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e40b9538 | 1 | #ifndef ALIGENEMLIB_H |
2 | #define ALIGENEMLIB_H | |
3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
4 | * See cxx source for full Copyright notice */ | |
5 | ||
6 | /* $Id: AliGenEMlib.h 30052 2008-11-25 14:54:18Z morsch $ */ | |
7 | ||
8 | ///////////////////////////////////////////////////////////////////////////// | |
9 | // // | |
10 | // Implementation of AliGenEMlib for electron, di-electron, and photon // | |
11 | // cocktail calculations. // | |
12 | // It is based on AliGenGSIlib. // | |
13 | // // | |
14 | // Responsible: R.Averbeck@gsi.de // | |
15 | // // | |
16 | ///////////////////////////////////////////////////////////////////////////// | |
17 | ||
18 | #include "AliGenLib.h" | |
19 | class TRandom; | |
20 | ||
21 | class AliGenEMlib :public AliGenLib { | |
6e38a462 | 22 | public: |
23 | ||
24 | enum Particle_t{kPizero=0x0, kEta=0x1, kRho0=0x2, kOmega=0x3, kEtaprime=0x4, kPhi=0x5, kJpsi=0x6, kSigma0=0x7, kK0s=0x8, kDeltaPlPl=0x9, kDeltaPl=0xA, kDeltaMi=0xB, kDeltaZero=0xC, kRhoPl = 0xD, kRhoMi = 0xE, kK0star = 0xF, kDirectRealGamma=0x10, kDirectVirtGamma=0x11 }; | |
25 | enum Centrality_t{ kpp = 0x0, | |
26 | k0005=0x1, k0510=0x2, k1020=0x3, k2030=0x4, k3040=0x5, k4050=0x6, k5060=0x7, k0010=0x8, k2040=0x9, k4060=0xA, k6080=0xB, k0020=0xC, k0040=0xD, k2080=0xE, k4080=0xF, kCentralities=0x10}; | |
27 | enum CollisionSystem_t {kpp900GeV=0x0, kpp2760GeV=0x1, kpp7TeV=0x2, kpPb=0x3, kPbPb=0x4}; | |
28 | enum PtParamSetPi0_t{kPizeroParam=0x0, kPizeroParamlow=0x1, kPizeroParamhigh=0x2, | |
29 | kPichargedParam=0x3, kPichargedParamlow=0x4, kPichargedParamhigh=0x5, | |
30 | kPizeroParamAlter=0x6, kPizeroParamAlterlow=0x7, kPizeroParamAlterhigh=0x8, | |
31 | kNPi0Param=0x9 | |
32 | }; | |
33 | enum PtParamSetEta_t{kEtaParampp=0x0, kEtaParampplow=0x1, kEtaParampphigh=0x2, | |
34 | kEtaParamRatiopp=0x3, kEtaParamRatiopplow=0x4, kEtaParamRatiopphigh=0x5, | |
35 | kEtaParamPbPb=0x6, | |
36 | kEtaParamPPb=0x7 | |
37 | }; | |
38 | enum PtParamSetOmega_t{kOmegaParampp=0x0, kOmegaParampplow=0x1, kOmegaParampphigh=0x2, | |
39 | kOmegaParamRatiopp=0x3, kOmegaParamRatiopplow=0x4, kOmegaParamRatiopphigh=0x5, | |
40 | kOmegaParamPbPb=0x6, | |
41 | kOmegaParamPPb=0x7 | |
42 | }; | |
43 | enum PtParamSetPhi_t{kPhiParampp=0x0, kPhiParampplow=0x1, kPhiParampphigh=0x2, | |
44 | kPhiParamPbPb=0x3, | |
45 | kPhiParamPPb=0x4 | |
46 | }; | |
47 | ||
48 | ||
49 | enum v2Sys_t{kLoV2Sys=-1, kNoV2Sys=0, kUpV2Sys=+1}; | |
50 | ||
51 | AliGenEMlib() { } ; | |
52 | ||
53 | static void SelectParams( Int_t collisionSystem, | |
54 | Int_t ptSelectPi0, | |
55 | Int_t ptSelectEta, | |
56 | Int_t ptSelectOmega, | |
57 | Int_t ptSelectPhi, | |
58 | Int_t centSelect=kpp, | |
59 | Int_t v2sys=kNoV2Sys) { | |
60 | fgSelectedCollisionsSystem = collisionSystem; | |
61 | fgSelectedPtParamPi0=ptSelectPi0; | |
62 | fgSelectedPtParamEta=ptSelectEta; | |
63 | fgSelectedPtParamOmega=ptSelectOmega; | |
64 | fgSelectedPtParamPhi=ptSelectPhi; | |
65 | fgSelectedCentrality=centSelect; | |
66 | fgSelectedV2Systematic=v2sys; | |
67 | ||
68 | } | |
69 | ||
70 | GenFunc GetPt(Int_t param, const char * tname=0) const; | |
71 | GenFunc GetY(Int_t param, const char * tname=0) const; | |
72 | GenFuncIp GetIp(Int_t param, const char * tname=0) const; | |
73 | GenFunc GetV2(Int_t param, const char * tname=0) const; | |
74 | ||
75 | //private: | |
76 | ||
77 | // General functions | |
78 | ||
79 | // General functions | |
80 | static Int_t fgSelectedCollisionsSystem; // selected pT parameter | |
81 | static Int_t fgSelectedPtParamPi0; // selected pT parameter | |
82 | static Int_t fgSelectedPtParamEta; // selected pT parameter | |
83 | static Int_t fgSelectedPtParamOmega; // selected pT parameter | |
84 | static Int_t fgSelectedPtParamPhi; // selected pT parameter | |
85 | static Int_t fgSelectedCentrality; // selected Centrality | |
86 | static Int_t fgSelectedV2Systematic; // selected v2 systematics, usefully values: -1,0,1 | |
87 | ||
88 | ||
89 | static Double_t PtModifiedHagedornThermal(Double_t pt, | |
90 | Double_t c, | |
91 | Double_t p0, | |
92 | Double_t p1, | |
93 | Double_t n, | |
94 | Double_t cT, | |
95 | Double_t T); | |
96 | ||
97 | ||
98 | ||
99 | static Double_t PtModifiedHagedornExp(Double_t pt, | |
100 | Double_t c, | |
101 | Double_t p0, | |
102 | Double_t p1, | |
103 | Double_t p2, | |
104 | Double_t n); | |
105 | ||
106 | ||
107 | static Double_t PtModifiedHagedornExp2(Double_t pt, | |
108 | Double_t c, | |
109 | Double_t a, | |
110 | Double_t b, | |
111 | Double_t p0, | |
112 | Double_t p1, | |
113 | Double_t d, | |
114 | Double_t n); | |
115 | ||
116 | ||
117 | static Double_t PtTsallis(Double_t pt, | |
118 | Double_t m, | |
119 | Double_t c, | |
120 | Double_t T, | |
121 | Double_t n); | |
122 | ||
123 | static Double_t PtParticleRatiopp(Double_t pt, | |
124 | Double_t m1, | |
125 | Double_t m2, | |
126 | Double_t c1, | |
127 | Double_t c2, | |
128 | Double_t T1, | |
129 | Double_t T2, | |
130 | Double_t n); | |
131 | ||
132 | static Double_t PtXQCD( Double_t pt, | |
133 | Double_t a, | |
134 | Double_t b, | |
135 | Double_t c, | |
136 | Double_t d, | |
137 | Double_t e, | |
138 | Double_t f); | |
139 | ||
140 | static Double_t PtModTsallis( Double_t pt, | |
141 | Double_t a, | |
142 | Double_t b, | |
143 | Double_t c, | |
144 | Double_t d, | |
145 | Double_t e, | |
146 | Double_t f, | |
147 | Double_t g, | |
148 | Double_t mass); | |
149 | ||
150 | static Double_t PtQCD( Double_t pt, | |
151 | Double_t a, | |
152 | Double_t b, | |
153 | Double_t c, | |
154 | Double_t d, | |
155 | Double_t e); | |
156 | ||
157 | static Double_t PtExponential(const Double_t *pt, const Double_t *param); | |
158 | static Double_t PtModifiedHagedornPowerlaw(const Double_t *pt, const Double_t *param); | |
159 | static Double_t PtDoublePowerlaw(const Double_t *pt, const Double_t *param); | |
160 | static Double_t IntegratedKrollWada(const Double_t *mh, const Double_t *); | |
161 | ||
162 | // direct gamma | |
163 | static Double_t PtPromptRealGamma(const Double_t *px, const Double_t *dummy); | |
164 | static Double_t PtPromptVirtGamma(const Double_t *px, const Double_t *dummy); | |
165 | static Double_t PtThermalRealGamma(const Double_t *px, const Double_t *dummy); | |
166 | static Double_t PtThermalVirtGamma(const Double_t *px, const Double_t *dummy); | |
167 | ||
168 | static Int_t IpDirectRealGamma(TRandom *ran); | |
169 | static Double_t PtDirectRealGamma(const Double_t *px, const Double_t *dummy); | |
170 | static Double_t YDirectRealGamma(const Double_t *py, const Double_t *dummy); | |
171 | static Double_t V2DirectRealGamma(const Double_t *px, const Double_t *dummy); | |
172 | ||
173 | static Int_t IpDirectVirtGamma(TRandom *ran); | |
174 | static Double_t PtDirectVirtGamma(const Double_t *px, const Double_t *dummy); | |
175 | static Double_t YDirectVirtGamma(const Double_t *py, const Double_t *dummy); | |
176 | static Double_t V2DirectVirtGamma(const Double_t *px, const Double_t *dummy); | |
177 | ||
178 | // Pizero | |
179 | static Int_t IpPizero(TRandom *ran); | |
180 | static Double_t PtPizero(const Double_t *px, const Double_t *dummy); | |
181 | static Double_t YPizero(const Double_t *py, const Double_t *dummy); | |
182 | static Double_t V2Pizero(const Double_t *px, const Double_t *dummy); | |
183 | ||
184 | // Eta | |
185 | static Int_t IpEta(TRandom *ran); | |
186 | static Double_t PtEta(const Double_t *px, const Double_t *dummy); | |
187 | static Double_t YEta(const Double_t *py, const Double_t *dummy); | |
188 | static Double_t V2Eta(const Double_t *px, const Double_t *dummy); | |
189 | ||
190 | // Rho | |
191 | static Int_t IpRho0(TRandom *ran); | |
192 | static Double_t PtRho0(const Double_t *px, const Double_t *dummy); | |
193 | static Double_t YRho0(const Double_t *py, const Double_t *dummy); | |
194 | static Double_t V2Rho0(const Double_t *py, const Double_t *dummy); | |
195 | ||
196 | ||
197 | // Omega | |
198 | static Int_t IpOmega(TRandom *ran); | |
199 | static Double_t PtOmega(const Double_t *px, const Double_t *dummy); | |
200 | static Double_t YOmega(const Double_t *py, const Double_t *dummy); | |
201 | static Double_t V2Omega(const Double_t *py, const Double_t *dummy); | |
202 | ||
203 | // Etaprime | |
204 | static Int_t IpEtaprime(TRandom *ran); | |
205 | static Double_t PtEtaprime(const Double_t *px, const Double_t *dummy); | |
206 | static Double_t YEtaprime(const Double_t *py, const Double_t *dummy); | |
207 | static Double_t V2Etaprime(const Double_t *py, const Double_t *dummy); | |
208 | ||
209 | // Phi | |
210 | static Int_t IpPhi(TRandom *ran); | |
211 | static Double_t PtPhi(const Double_t *px, const Double_t *dummy); | |
212 | static Double_t YPhi(const Double_t *py, const Double_t *dummy); | |
213 | static Double_t V2Phi(const Double_t *py, const Double_t *dummy); | |
214 | ||
215 | // Jpsi | |
216 | static Int_t IpJpsi(TRandom *ran); | |
217 | static Double_t PtJpsi(const Double_t *px, const Double_t *dummy); | |
218 | static Double_t YJpsi(const Double_t *py, const Double_t *dummy); | |
219 | static Double_t V2Jpsi(const Double_t *py, const Double_t *dummy); | |
220 | ||
221 | // Sigma | |
222 | static Int_t IpSigma(TRandom *ran); | |
223 | static Double_t PtSigma( const Double_t *px, const Double_t *dummy ); | |
224 | static Double_t YSigma(const Double_t *py, const Double_t *dummy); | |
225 | static Double_t V2Sigma0( const Double_t *px, const Double_t *dummy ); | |
226 | ||
227 | // K0short | |
228 | static Int_t IpK0short(TRandom *ran); | |
229 | static Double_t PtK0short( const Double_t *px, const Double_t *dummy ); | |
230 | static Double_t YK0short(const Double_t *py, const Double_t *dummy); | |
231 | static Double_t V2K0sshort( const Double_t *px, const Double_t *dummy ); | |
232 | ||
233 | // Delta++ | |
234 | static Int_t IpDeltaPlPl(TRandom *ran); | |
235 | static Double_t PtDeltaPlPl( const Double_t *px, const Double_t *dummy ); | |
236 | static Double_t YDeltaPlPl(const Double_t *py, const Double_t *dummy); | |
237 | static Double_t V2DeltaPlPl( const Double_t *px, const Double_t *dummy ); | |
238 | ||
239 | // Delta+ | |
240 | static Int_t IpDeltaPl(TRandom *ran); | |
241 | static Double_t PtDeltaPl( const Double_t *px, const Double_t *dummy ); | |
242 | static Double_t YDeltaPl(const Double_t *py, const Double_t *dummy); | |
243 | static Double_t V2DeltaPl( const Double_t *px, const Double_t *dummy ); | |
244 | ||
245 | // Delta- | |
246 | static Int_t IpDeltaMi(TRandom *ran); | |
247 | static Double_t PtDeltaMi( const Double_t *px, const Double_t *dummy ); | |
248 | static Double_t YDeltaMi(const Double_t *py, const Double_t *dummy); | |
249 | static Double_t V2DeltaMi( const Double_t *px, const Double_t *dummy ); | |
250 | ||
251 | // Delta0 | |
252 | static Int_t IpDeltaZero(TRandom *ran); | |
253 | static Double_t PtDeltaZero( const Double_t *px, const Double_t *dummy ); | |
254 | static Double_t YDeltaZero(const Double_t *py, const Double_t *dummy); | |
255 | static Double_t V2DeltaZero( const Double_t *px, const Double_t *dummy ); | |
256 | ||
257 | // Rho+ | |
258 | static Int_t IpRhoPl(TRandom *ran); | |
259 | static Double_t PtRhoPl( const Double_t *px, const Double_t *dummy ); | |
260 | static Double_t YRhoPl(const Double_t *py, const Double_t *dummy); | |
261 | static Double_t V2RhoPl( const Double_t *px, const Double_t *dummy ); | |
262 | ||
263 | // Rho- | |
264 | static Int_t IpRhoMi(TRandom *ran); | |
265 | static Double_t PtRhoMi( const Double_t *px, const Double_t *dummy ); | |
266 | static Double_t YRhoMi(const Double_t *py, const Double_t *dummy); | |
267 | static Double_t V2RhoMi( const Double_t *px, const Double_t *dummy ); | |
268 | ||
269 | // K0* | |
270 | static Int_t IpK0star(TRandom *ran); | |
271 | static Double_t PtK0star( const Double_t *px, const Double_t *dummy ); | |
272 | static Double_t YK0star(const Double_t *py, const Double_t *dummy); | |
273 | static Double_t V2K0star( const Double_t *px, const Double_t *dummy ); | |
274 | ||
275 | ||
276 | // General | |
277 | //static Double_t PtFlat(const Double_t *px, const Double_t *dummy); | |
278 | static Double_t YFlat(Double_t y); | |
279 | static Double_t MtScal(Double_t pt, Int_t np); | |
280 | static Double_t V2Param(const Double_t *px, const Double_t *param); | |
281 | static Double_t V2Flat(const Double_t *px, const Double_t *param); | |
282 | static Double_t KEtScal(Double_t pt, Int_t np); | |
283 | static Double_t GetTAA(Int_t cent); | |
284 | ||
285 | static Double_t CrossOverLc(double a, double b, double x); | |
286 | static Double_t CrossOverRc(double a, double b, double x); | |
287 | ||
288 | static const Double_t fgkPtParam[kCentralities][10]; // parameters of pi pt spectrum | |
289 | static const Double_t fgkModTsallisParamPi0PbPb[kCentralities][7]; // parameters for ModTsallis function for pi0 in PbPb | |
290 | static const Double_t fgkModTsallisParamPiChargedPbPb[kCentralities][7]; // parameters for ModTsallis function for pi+- in PbPb | |
291 | static const Double_t fgkV2param[kCentralities][16]; // parameters of pi v2 | |
292 | static const Double_t fgkRawPtOfV2Param[kCentralities][10]; // parameters of the raw pt spectrum of v2 analysys | |
293 | static const Double_t fgkThermPtParam[kCentralities][2]; // parameters of thermal gamma pt | |
294 | static const Double_t fgkHM[16]; // particle masses | |
295 | static const Double_t fgkMtFactor[3][16]; // mt scaling factor | |
296 | static const Double_t fgkParamSetPi07TeV[kNPi0Param][7]; // parameters for pi0 in 7 TeV | |
297 | static const Double_t fgkParamSetPi02760GeV[kNPi0Param][7]; // parameters for pi0 in 2.76 TeV | |
298 | static const Double_t fgkParamSetPi0900GeV[kNPi0Param][7]; // parameters for pi0 in 0.9 TeV | |
299 | ||
300 | ClassDef(AliGenEMlib,1) | |
301 | ||
e40b9538 | 302 | }; |
303 | ||
4ae1c9f0 | 304 | |
e40b9538 | 305 | #endif |