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