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886b6f73 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
88cb7938 | 16 | /* $Id$ */ |
886b6f73 | 17 | |
18 | //====================================================================== | |
19 | // AliGenPHOSlib class contains parameterizations of the | |
20 | // pion, kaon, eta, omega, etaprime, phi and baryon (proton, | |
21 | // antiproton, neutron and anti-neutron) particles for the | |
22 | // study of the neutral background in PHOS detector. | |
23 | // These parameterizations are used by the | |
24 | // AliGenParam class: | |
25 | // AliGenParam(npar, param, AliGenPHOSlib::GetPt(param), | |
26 | // AliGenPHOSlib::GetY(param), | |
27 | // AliGenPHOSlib::GetIp(param) ) | |
28 | // param represents the particle to be simulated : | |
29 | // Pion, Kaon, Eta, Omega, Etaprime, Phi or Baryon | |
30 | // Pt distributions are calculated from the transverse mass scaling | |
9ae59e17 | 31 | // with Pions, using the PtScal function taken from AliGenMUONlib |
886b6f73 | 32 | // version aliroot 3.01 |
33 | // | |
9ae59e17 | 34 | // Gines MARTINEZ. Laurent APHECETCHE and Yves SCHUTZ |
35 | // GPS @ SUBATECH, Nantes , France (October 1999) | |
886b6f73 | 36 | // http://www-subatech.in2p3.fr/~photons/subatech |
37 | // martinez@subatech.in2p3.fr | |
35ead6c1 | 38 | // Additional particle species simulation options has been added: |
39 | // Charged Pion, Charged Kaons, KLong Proton, Anti-Proton, Neutron, | |
40 | // Anti-Neutron --> Changes made by Gustavo Conesa in November 2004 | |
8fc6910b | 41 | // Add flat Omega(782) distribution in Nov. 2010 by Renzhuo WAN |
886b6f73 | 42 | //====================================================================== |
43 | ||
65fb704d | 44 | #include "TMath.h" |
45 | #include "TRandom.h" | |
46 | ||
886b6f73 | 47 | #include "AliGenPHOSlib.h" |
886b6f73 | 48 | |
49 | ClassImp(AliGenPHOSlib) | |
50 | ||
51 | //====================================================================== | |
52 | // P I O N S | |
53 | // (From GetPt, GetY and GetIp as param = Pion) | |
54 | // Transverse momentum distribution" PtPion | |
55 | // Rapidity distribution YPion | |
56 | // Particle distribution IdPion 111, 211 and -211 (pi0, pi+ and pi-) | |
57 | // | |
75e0cc59 | 58 | Double_t AliGenPHOSlib::PtPion(const Double_t *px, const Double_t *) |
886b6f73 | 59 | { |
60 | // Pion transverse momentum distribtuion taken | |
9ae59e17 | 61 | // from AliGenMUONlib class, version 3.01 of aliroot |
886b6f73 | 62 | // PT-PARAMETERIZATION CDF, PRL 61(88) 1819 |
63 | // POWER LAW FOR PT > 500 MEV | |
64 | // MT SCALING BELOW (T=160 MEV) | |
65 | // | |
f87cfe57 | 66 | const Double_t kp0 = 1.3; |
67 | const Double_t kxn = 8.28; | |
68 | const Double_t kxlim=0.5; | |
69 | const Double_t kt=0.160; | |
70 | const Double_t kxmpi=0.139; | |
71 | const Double_t kb=1.; | |
72 | Double_t y, y1, kxmpi2, ynorm, a; | |
886b6f73 | 73 | Double_t x=*px; |
74 | // | |
f87cfe57 | 75 | y1=TMath::Power(kp0/(kp0+kxlim),kxn); |
76 | kxmpi2=kxmpi*kxmpi; | |
77 | ynorm=kb*(TMath::Exp(-sqrt(kxlim*kxlim+kxmpi2)/kt)); | |
886b6f73 | 78 | a=ynorm/y1; |
f87cfe57 | 79 | if (x > kxlim) |
80 | y=a*TMath::Power(kp0/(kp0+x),kxn); | |
886b6f73 | 81 | else |
f87cfe57 | 82 | y=kb*TMath::Exp(-sqrt(x*x+kxmpi2)/kt); |
886b6f73 | 83 | return y*x; |
84 | } | |
75e0cc59 | 85 | Double_t AliGenPHOSlib::YPion( const Double_t *py, const Double_t *) |
886b6f73 | 86 | { |
f87cfe57 | 87 | // |
88 | // pion y-distribution | |
89 | // | |
90 | ||
91 | const Double_t ka = 7000.; | |
92 | const Double_t kdy = 4.; | |
886b6f73 | 93 | |
94 | Double_t y=TMath::Abs(*py); | |
95 | // | |
f87cfe57 | 96 | Double_t ex = y*y/(2*kdy*kdy); |
97 | return ka*TMath::Exp(-ex); | |
886b6f73 | 98 | } |
f87cfe57 | 99 | |
078ff23f | 100 | Int_t AliGenPHOSlib::IpPion(TRandom */*ran*/) |
886b6f73 | 101 | { |
f87cfe57 | 102 | // particle composition pi+, pi0, pi- |
103 | // | |
104 | ||
886b6f73 | 105 | return 111 ; |
886b6f73 | 106 | } |
35ead6c1 | 107 | Int_t AliGenPHOSlib::IpChargedPion(TRandom *ran) |
108 | { | |
109 | // particle composition pi+, pi0, pi- | |
110 | // | |
111 | ||
112 | Float_t random = ran->Rndm(); | |
113 | ||
114 | if ( (2.*random) < 1. ) | |
115 | { | |
116 | return 211 ; | |
117 | } | |
118 | else | |
119 | { | |
120 | return -211 ; | |
121 | } | |
122 | } | |
74c62c73 | 123 | |
124 | //End Pions | |
125 | //====================================================================== | |
126 | // Pi 0 Flat Distribution | |
127 | // Transverse momentum distribution PtPi0Flat | |
128 | // Rapidity distribution YPi0Flat | |
129 | // Particle distribution IdPi0Flat 111 (pi0) | |
130 | // | |
131 | ||
75e0cc59 | 132 | Double_t AliGenPHOSlib::PtPi0Flat(const Double_t */*px*/, const Double_t *) |
74c62c73 | 133 | { |
134 | // Pion transverse momentum flat distribution | |
135 | ||
136 | return 1; | |
137 | ||
138 | } | |
139 | ||
75e0cc59 | 140 | Double_t AliGenPHOSlib::YPi0Flat( const Double_t */*py*/, const Double_t *) |
74c62c73 | 141 | { |
142 | ||
143 | // pion y-distribution | |
144 | // | |
145 | return 1.; | |
146 | } | |
147 | ||
148 | Int_t AliGenPHOSlib::IpPi0Flat(TRandom *) | |
149 | { | |
150 | ||
151 | // particle composition pi0 | |
152 | // | |
153 | return 111 ; | |
154 | } | |
155 | // End Pi0Flat | |
886b6f73 | 156 | //============================================================= |
157 | // | |
f87cfe57 | 158 | Double_t AliGenPHOSlib::PtScal(Double_t pt, Int_t np) |
159 | { | |
886b6f73 | 160 | // Mt-scaling |
161 | // Fonction for the calculation of the Pt distribution for a | |
162 | // given particle np, from the pion Pt distribution using the | |
163 | // mt scaling. This function was taken from AliGenMUONlib | |
164 | // aliroot version 3.01, and was extended for baryons | |
165 | // np = 1=>Pions 2=>Kaons 3=>Etas 4=>Omegas 5=>ETA' 6=>PHI | |
166 | // 7=>BARYONS-BARYONBARS | |
f87cfe57 | 167 | |
886b6f73 | 168 | // SCALING EN MASSE PAR RAPPORT A PTPI |
0db2f441 | 169 | // MASS 0=>PI, 1=>K, 2=>ETA, 3=>OMEGA, 4=>ETA',5=>PHI |
f87cfe57 | 170 | const Double_t khm[10] = {0.1396, 0.494, 0.547, 0.782, 0.957, 1.02, |
0db2f441 | 171 | // MASS 6=>BARYON-BARYONBAR |
886b6f73 | 172 | 0.938, 0. , 0., 0.}; |
173 | // VALUE MESON/PI AT 5 GEV | |
f87cfe57 | 174 | const Double_t kfmax[10]={1., 1., 1., 1., 1., 1., 1., 1., 1., 1.}; |
f87cfe57 | 175 | Double_t f5=TMath::Power(((sqrt(100.018215)+2.)/(sqrt(100.+khm[np]*khm[np])+2.0)),12.3); |
176 | Double_t kfmax2=f5/kfmax[np]; | |
886b6f73 | 177 | // PIONS |
178 | Double_t ptpion=100.*PtPion(&pt, (Double_t*) 0); | |
179 | Double_t fmtscal=TMath::Power(((sqrt(pt*pt+0.018215)+2.)/ | |
f87cfe57 | 180 | (sqrt(pt*pt+khm[np]*khm[np])+2.0)),12.3)/ kfmax2; |
886b6f73 | 181 | return fmtscal*ptpion; |
74c62c73 | 182 | |
886b6f73 | 183 | } |
184 | // End Scaling | |
185 | //============================================================================ | |
186 | // K A O N S | |
75e0cc59 | 187 | Double_t AliGenPHOSlib::PtKaon( const Double_t *px, const Double_t *) |
886b6f73 | 188 | { |
f87cfe57 | 189 | // kaon |
190 | // pt-distribution | |
191 | //____________________________________________________________ | |
192 | ||
0db2f441 | 193 | return PtScal(*px,1); // 1==> Kaon in the PtScal function |
886b6f73 | 194 | } |
195 | ||
75e0cc59 | 196 | Double_t AliGenPHOSlib::YKaon( const Double_t *py, const Double_t *) |
886b6f73 | 197 | { |
f87cfe57 | 198 | // y-distribution |
199 | //____________________________________________________________ | |
200 | ||
201 | const Double_t ka = 1000.; | |
202 | const Double_t kdy = 4.; | |
886b6f73 | 203 | |
204 | ||
205 | Double_t y=TMath::Abs(*py); | |
206 | // | |
f87cfe57 | 207 | Double_t ex = y*y/(2*kdy*kdy); |
208 | return ka*TMath::Exp(-ex); | |
886b6f73 | 209 | } |
210 | ||
65fb704d | 211 | Int_t AliGenPHOSlib::IpKaon(TRandom *ran) |
886b6f73 | 212 | { |
f87cfe57 | 213 | // particle composition |
214 | // | |
215 | ||
65fb704d | 216 | Float_t random = ran->Rndm(); |
217 | Float_t random2 = ran->Rndm(); | |
218 | if (random2 < 0.5) | |
886b6f73 | 219 | { |
65fb704d | 220 | if (random < 0.5) { |
886b6f73 | 221 | return 321; // K+ |
222 | } else { | |
223 | return -321; // K- | |
224 | } | |
225 | } | |
226 | else | |
227 | { | |
65fb704d | 228 | if (random < 0.5) { |
9ae59e17 | 229 | return 130; // K^0 short |
886b6f73 | 230 | } else { |
9ae59e17 | 231 | return 310; // K^0 long |
886b6f73 | 232 | } |
233 | } | |
234 | } | |
35ead6c1 | 235 | |
236 | Int_t AliGenPHOSlib::IpChargedKaon(TRandom *ran) | |
237 | { | |
238 | // particle composition | |
239 | // | |
240 | ||
241 | Float_t random = ran->Rndm(); | |
242 | ||
243 | if (random < 0.5) { | |
244 | return 321; // K+ | |
245 | } else { | |
246 | return -321; // K- | |
247 | } | |
248 | ||
249 | ||
250 | } | |
251 | Int_t AliGenPHOSlib::IpKaon0L(TRandom *) | |
252 | { | |
253 | // particle composition | |
254 | // | |
255 | ||
256 | return 130; // K^0 long | |
257 | } | |
886b6f73 | 258 | // End Kaons |
259 | //============================================================================ | |
260 | //============================================================================ | |
261 | // E T A S | |
75e0cc59 | 262 | Double_t AliGenPHOSlib::PtEta( const Double_t *px, const Double_t *) |
886b6f73 | 263 | { |
f87cfe57 | 264 | // etas |
265 | // pt-distribution | |
266 | //____________________________________________________________ | |
267 | ||
0db2f441 | 268 | return PtScal(*px,2); // 2==> Eta in the PtScal function |
886b6f73 | 269 | } |
270 | ||
75e0cc59 | 271 | Double_t AliGenPHOSlib::YEta( const Double_t *py, const Double_t *) |
886b6f73 | 272 | { |
f87cfe57 | 273 | // y-distribution |
274 | //____________________________________________________________ | |
275 | ||
276 | const Double_t ka = 1000.; | |
277 | const Double_t kdy = 4.; | |
886b6f73 | 278 | |
279 | ||
280 | Double_t y=TMath::Abs(*py); | |
281 | // | |
f87cfe57 | 282 | Double_t ex = y*y/(2*kdy*kdy); |
283 | return ka*TMath::Exp(-ex); | |
886b6f73 | 284 | } |
285 | ||
65fb704d | 286 | Int_t AliGenPHOSlib::IpEta(TRandom *) |
886b6f73 | 287 | { |
f87cfe57 | 288 | // particle composition |
289 | // | |
290 | ||
886b6f73 | 291 | return 221; // eta |
292 | } | |
293 | // End Etas | |
74c62c73 | 294 | |
295 | //====================================================================== | |
296 | // Eta Flat Distribution | |
297 | // Transverse momentum distribution PtEtaFlat | |
298 | // Rapidity distribution YEtaFlat | |
299 | // Particle distribution IdEtaFlat 111 (pi0) | |
300 | // | |
301 | ||
75e0cc59 | 302 | Double_t AliGenPHOSlib::PtEtaFlat(const Double_t */*px*/, const Double_t *) |
74c62c73 | 303 | { |
304 | // Eta transverse momentum flat distribution | |
305 | ||
306 | return 1; | |
307 | ||
308 | } | |
309 | ||
75e0cc59 | 310 | Double_t AliGenPHOSlib::YEtaFlat( const Double_t */*py*/, const Double_t *) |
74c62c73 | 311 | { |
312 | // | |
313 | // pion y-distribution | |
314 | // | |
315 | return 1.; | |
316 | } | |
317 | ||
318 | Int_t AliGenPHOSlib::IpEtaFlat(TRandom *) | |
319 | { | |
320 | // | |
321 | // particle composition eta | |
322 | // | |
323 | return 221 ; | |
324 | } | |
35ead6c1 | 325 | // End EtaFlat |
886b6f73 | 326 | //============================================================================ |
327 | //============================================================================ | |
328 | // O M E G A S | |
75e0cc59 | 329 | Double_t AliGenPHOSlib::PtOmega( const Double_t *px, const Double_t *) |
f87cfe57 | 330 | { |
886b6f73 | 331 | // omegas |
332 | // pt-distribution | |
333 | //____________________________________________________________ | |
f87cfe57 | 334 | |
0db2f441 | 335 | return PtScal(*px,3); // 3==> Omega in the PtScal function |
886b6f73 | 336 | } |
337 | ||
75e0cc59 | 338 | Double_t AliGenPHOSlib::YOmega( const Double_t *py, const Double_t *) |
886b6f73 | 339 | { |
f87cfe57 | 340 | // y-distribution |
341 | //____________________________________________________________ | |
342 | ||
343 | const Double_t ka = 1000.; | |
344 | const Double_t kdy = 4.; | |
886b6f73 | 345 | |
346 | ||
347 | Double_t y=TMath::Abs(*py); | |
348 | // | |
f87cfe57 | 349 | Double_t ex = y*y/(2*kdy*kdy); |
350 | return ka*TMath::Exp(-ex); | |
886b6f73 | 351 | } |
352 | ||
65fb704d | 353 | Int_t AliGenPHOSlib::IpOmega(TRandom *) |
886b6f73 | 354 | { |
f87cfe57 | 355 | // particle composition |
356 | // | |
357 | ||
886b6f73 | 358 | return 223; // Omega |
359 | } | |
360 | // End Omega | |
361 | //============================================================================ | |
8fc6910b | 362 | //====================================================================== |
363 | // Omega(782) Flat Distribution | |
364 | // Transverse momentum distribution PtOmegaFlat | |
365 | // Rapidity distribution YOmegaFlat | |
366 | // Particle distribution IdOmegaFlat 223(0mega) | |
367 | // | |
368 | ||
369 | Double_t AliGenPHOSlib::PtOmegaFlat(const Double_t */*px*/, const Double_t *) | |
370 | { | |
371 | // omega transverse momentum flat distribution | |
372 | ||
373 | return 1; | |
374 | ||
375 | } | |
376 | ||
377 | Double_t AliGenPHOSlib::YOmegaFlat( const Double_t */*py*/, const Double_t *) | |
378 | { | |
379 | ||
380 | // omega y-distribution | |
381 | // | |
382 | return 1.; | |
383 | } | |
384 | ||
385 | Int_t AliGenPHOSlib::IpOmegaFlat(TRandom *) | |
386 | { | |
387 | ||
388 | // particle composition omega | |
389 | // | |
390 | return 223 ; | |
391 | } | |
392 | // End OmegaFlat | |
393 | ||
394 | ||
886b6f73 | 395 | //============================================================================ |
396 | // E T A P R I M E | |
75e0cc59 | 397 | Double_t AliGenPHOSlib::PtEtaprime( const Double_t *px, const Double_t *) |
f87cfe57 | 398 | { |
886b6f73 | 399 | // etaprime |
400 | // pt-distribution | |
401 | //____________________________________________________________ | |
f87cfe57 | 402 | |
0db2f441 | 403 | return PtScal(*px,4); // 4==> Etaprime in the PtScal function |
886b6f73 | 404 | } |
405 | ||
75e0cc59 | 406 | Double_t AliGenPHOSlib::YEtaprime( const Double_t *py, const Double_t *) |
886b6f73 | 407 | { |
f87cfe57 | 408 | // y-distribution |
409 | //____________________________________________________________ | |
410 | ||
411 | const Double_t ka = 1000.; | |
412 | const Double_t kdy = 4.; | |
886b6f73 | 413 | |
414 | ||
415 | Double_t y=TMath::Abs(*py); | |
416 | // | |
f87cfe57 | 417 | Double_t ex = y*y/(2*kdy*kdy); |
418 | return ka*TMath::Exp(-ex); | |
886b6f73 | 419 | } |
420 | ||
65fb704d | 421 | Int_t AliGenPHOSlib::IpEtaprime(TRandom *) |
886b6f73 | 422 | { |
f87cfe57 | 423 | // particle composition |
424 | // | |
425 | ||
886b6f73 | 426 | return 331; // Etaprime |
427 | } | |
428 | // End EtaPrime | |
429 | //=================================================================== | |
430 | //============================================================================ | |
431 | // P H I S | |
75e0cc59 | 432 | Double_t AliGenPHOSlib::PtPhi( const Double_t *px, const Double_t *) |
f87cfe57 | 433 | { |
886b6f73 | 434 | // phi |
435 | // pt-distribution | |
436 | //____________________________________________________________ | |
f87cfe57 | 437 | |
0db2f441 | 438 | return PtScal(*px,5); // 5==> Phi in the PtScal function |
886b6f73 | 439 | } |
440 | ||
75e0cc59 | 441 | Double_t AliGenPHOSlib::YPhi( const Double_t *py, const Double_t *) |
886b6f73 | 442 | { |
f87cfe57 | 443 | // y-distribution |
444 | //____________________________________________________________ | |
445 | ||
446 | const Double_t ka = 1000.; | |
447 | const Double_t kdy = 4.; | |
886b6f73 | 448 | |
449 | ||
450 | Double_t y=TMath::Abs(*py); | |
451 | // | |
f87cfe57 | 452 | Double_t ex = y*y/(2*kdy*kdy); |
453 | return ka*TMath::Exp(-ex); | |
886b6f73 | 454 | } |
455 | ||
65fb704d | 456 | Int_t AliGenPHOSlib::IpPhi(TRandom *) |
f87cfe57 | 457 | { |
886b6f73 | 458 | // particle composition |
459 | // | |
f87cfe57 | 460 | |
886b6f73 | 461 | return 333; // Phi |
462 | } | |
463 | // End Phis | |
464 | //=================================================================== | |
465 | //============================================================================ | |
466 | // B A R Y O N S == protons, protonsbar, neutrons, and neutronsbars | |
75e0cc59 | 467 | Double_t AliGenPHOSlib::PtBaryon( const Double_t *px, const Double_t *) |
f87cfe57 | 468 | { |
886b6f73 | 469 | // baryons |
470 | // pt-distribution | |
471 | //____________________________________________________________ | |
f87cfe57 | 472 | |
0db2f441 | 473 | return PtScal(*px,6); // 6==> Baryon in the PtScal function |
886b6f73 | 474 | } |
475 | ||
75e0cc59 | 476 | Double_t AliGenPHOSlib::YBaryon( const Double_t *py, const Double_t *) |
886b6f73 | 477 | { |
f87cfe57 | 478 | // y-distribution |
479 | //____________________________________________________________ | |
480 | ||
481 | const Double_t ka = 1000.; | |
482 | const Double_t kdy = 4.; | |
886b6f73 | 483 | |
484 | ||
485 | Double_t y=TMath::Abs(*py); | |
486 | // | |
f87cfe57 | 487 | Double_t ex = y*y/(2*kdy*kdy); |
488 | return ka*TMath::Exp(-ex); | |
886b6f73 | 489 | } |
490 | ||
65fb704d | 491 | Int_t AliGenPHOSlib::IpBaryon(TRandom *ran) |
886b6f73 | 492 | { |
f87cfe57 | 493 | // particle composition |
494 | // | |
495 | ||
65fb704d | 496 | Float_t random = ran->Rndm(); |
497 | Float_t random2 = ran->Rndm(); | |
498 | if (random2 < 0.5) | |
886b6f73 | 499 | { |
65fb704d | 500 | if (random < 0.5) { |
886b6f73 | 501 | return 2212; // p |
502 | } else { | |
503 | return -2212; // pbar | |
504 | } | |
505 | } | |
506 | else | |
507 | { | |
65fb704d | 508 | if (random < 0.5) { |
886b6f73 | 509 | return 2112; // n |
510 | } else { | |
511 | return -2112; // n bar | |
512 | } | |
513 | } | |
35ead6c1 | 514 | } |
515 | ||
516 | Int_t AliGenPHOSlib::IpProton(TRandom *) | |
517 | { | |
518 | // particle composition | |
519 | // | |
520 | return 2212; // p | |
521 | ||
522 | } | |
523 | Int_t AliGenPHOSlib::IpAProton(TRandom *) | |
524 | { | |
525 | // particle composition | |
526 | // | |
527 | return -2212; // p bar | |
528 | ||
529 | } | |
530 | ||
531 | Int_t AliGenPHOSlib::IpNeutron(TRandom *) | |
532 | { | |
533 | // particle composition | |
534 | // | |
535 | return 2112; // n | |
536 | ||
537 | } | |
538 | Int_t AliGenPHOSlib::IpANeutron(TRandom *) | |
539 | { | |
540 | // particle composition | |
541 | // | |
542 | return -2112; // n | |
543 | ||
886b6f73 | 544 | } |
545 | // End Baryons | |
546 | //=================================================================== | |
547 | ||
75e0cc59 | 548 | typedef Double_t (*GenFunc) (const Double_t*, const Double_t*); |
198bb1c7 | 549 | GenFunc AliGenPHOSlib::GetPt(Int_t param, const char* /*tname*/) const |
886b6f73 | 550 | { |
f87cfe57 | 551 | // Return pinter to pT parameterisation |
886b6f73 | 552 | GenFunc func; |
553 | ||
554 | switch (param) | |
35ead6c1 | 555 | { |
556 | case kPion: | |
886b6f73 | 557 | func=PtPion; |
558 | break; | |
35ead6c1 | 559 | case kPi0Flat: |
74c62c73 | 560 | func=PtPi0Flat; |
561 | break; | |
35ead6c1 | 562 | case kKaon: |
886b6f73 | 563 | func=PtKaon; |
564 | break; | |
35ead6c1 | 565 | case kEta: |
886b6f73 | 566 | func=PtEta; |
567 | break; | |
35ead6c1 | 568 | case kEtaFlat: |
74c62c73 | 569 | func=PtEtaFlat; |
570 | break; | |
35ead6c1 | 571 | case kOmega: |
886b6f73 | 572 | func=PtOmega; |
573 | break; | |
8fc6910b | 574 | case kOmegaFlat: |
575 | func=PtOmegaFlat; | |
576 | break; | |
35ead6c1 | 577 | case kEtaPrime: |
886b6f73 | 578 | func=PtEtaprime; |
579 | break; | |
35ead6c1 | 580 | case kBaryon: |
886b6f73 | 581 | func=PtBaryon; |
582 | break; | |
35ead6c1 | 583 | default: |
886b6f73 | 584 | func=0; |
585 | printf("<AliGenPHOSlib::GetPt> unknown parametrisationn"); | |
35ead6c1 | 586 | } |
886b6f73 | 587 | return func; |
588 | } | |
589 | ||
198bb1c7 | 590 | GenFunc AliGenPHOSlib::GetY(Int_t param, const char* /*tname*/) const |
886b6f73 | 591 | { |
35ead6c1 | 592 | // Return pointer to Y parameterisation |
593 | GenFunc func; | |
594 | switch (param) | |
886b6f73 | 595 | { |
34f60c01 | 596 | case kPion: |
35ead6c1 | 597 | func=YPion; |
598 | break; | |
74c62c73 | 599 | case kPi0Flat: |
35ead6c1 | 600 | func=YPi0Flat; |
601 | break; | |
34f60c01 | 602 | case kKaon: |
35ead6c1 | 603 | func=YKaon; |
604 | break; | |
34f60c01 | 605 | case kEta: |
35ead6c1 | 606 | func=YEta; |
607 | break; | |
608 | case kEtaFlat: | |
609 | func=YEtaFlat; | |
610 | break; | |
34f60c01 | 611 | case kOmega: |
35ead6c1 | 612 | func=YOmega; |
613 | break; | |
8fc6910b | 614 | case kOmegaFlat: |
615 | func=YOmegaFlat; | |
616 | break; | |
34f60c01 | 617 | case kEtaPrime: |
35ead6c1 | 618 | func=YEtaprime; |
619 | break; | |
34f60c01 | 620 | case kPhi: |
35ead6c1 | 621 | func=YPhi; |
622 | break; | |
34f60c01 | 623 | case kBaryon: |
35ead6c1 | 624 | func=YBaryon; |
625 | break; | |
886b6f73 | 626 | default: |
35ead6c1 | 627 | func=0; |
628 | printf("<AliGenPHOSlib::GetY> unknown parametrisationn"); | |
886b6f73 | 629 | } |
35ead6c1 | 630 | return func; |
886b6f73 | 631 | } |
65fb704d | 632 | typedef Int_t (*GenFuncIp) (TRandom *); |
198bb1c7 | 633 | GenFuncIp AliGenPHOSlib::GetIp(Int_t param, const char* /*tname*/) const |
886b6f73 | 634 | { |
35ead6c1 | 635 | // Return pointer to particle composition |
636 | GenFuncIp func; | |
637 | switch (param) | |
886b6f73 | 638 | { |
74c62c73 | 639 | case kPion: |
35ead6c1 | 640 | func=IpPion; |
641 | break; | |
642 | case kChargedPion: | |
643 | func=IpChargedPion; | |
644 | break; | |
74c62c73 | 645 | case kPi0Flat: |
35ead6c1 | 646 | func=IpPi0Flat; |
647 | break; | |
34f60c01 | 648 | case kKaon: |
35ead6c1 | 649 | func=IpKaon; |
650 | break; | |
651 | case kChargedKaon: | |
652 | func=IpChargedKaon; | |
653 | break; | |
654 | case kKaon0L: | |
655 | func=IpKaon0L; | |
656 | break; | |
34f60c01 | 657 | case kEta: |
35ead6c1 | 658 | func=IpEta; |
659 | break; | |
74c62c73 | 660 | case kEtaFlat: |
35ead6c1 | 661 | func=IpEtaFlat; |
662 | break; | |
663 | ||
34f60c01 | 664 | case kOmega: |
35ead6c1 | 665 | func=IpOmega; |
666 | break; | |
8fc6910b | 667 | case kOmegaFlat: |
668 | func=IpOmegaFlat; | |
669 | break; | |
34f60c01 | 670 | case kEtaPrime: |
35ead6c1 | 671 | func=IpEtaprime; |
672 | break; | |
34f60c01 | 673 | case kPhi: |
35ead6c1 | 674 | func=IpPhi; |
675 | break; | |
34f60c01 | 676 | case kBaryon: |
35ead6c1 | 677 | func=IpBaryon; |
678 | break; | |
679 | case kProton: | |
680 | func=IpProton; | |
681 | break; | |
682 | case kAProton: | |
683 | func=IpAProton; | |
684 | break; | |
685 | case kNeutron: | |
686 | func=IpNeutron; | |
687 | break; | |
688 | case kANeutron: | |
689 | func=IpANeutron; | |
690 | break; | |
691 | ||
886b6f73 | 692 | default: |
35ead6c1 | 693 | func=0; |
694 | printf("<AliGenPHOSlib::GetIp> unknown parametrisationn"); | |
886b6f73 | 695 | } |
35ead6c1 | 696 | return func; |
886b6f73 | 697 | } |
698 |