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8d2cd130 | 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 | ||
16 | /* | |
17 | $Log$ | |
adf4d898 | 18 | Revision 1.1 2003/03/15 15:00:48 morsch |
19 | Classed imported from EVGEN. | |
20 | ||
8d2cd130 | 21 | Revision 1.28 2002/12/09 08:22:56 morsch |
22 | UA1 jet finder (Pycell) for software triggering added. | |
23 | ||
24 | Revision 1.27 2002/11/15 00:39:37 morsch | |
25 | - Correct initialisation of sRandom. | |
26 | - QCD Jets with initial and final state gluon radiation is default | |
27 | - pt kick for jets default | |
28 | - Interface to Pyclus added. | |
29 | ||
30 | Revision 1.26 2002/11/14 00:37:32 morsch | |
31 | Warning message for kPyJets added. | |
32 | ||
33 | Revision 1.25 2002/10/14 14:55:35 hristov | |
34 | Merging the VirtualMC branch to the main development branch (HEAD) | |
35 | ||
36 | Revision 1.20.6.1 2002/06/10 14:57:41 hristov | |
37 | Merged with v3-08-02 | |
38 | ||
39 | Revision 1.24 2002/05/22 13:22:53 morsch | |
40 | Process kPyMbNonDiffr added. | |
41 | ||
42 | Revision 1.23 2002/05/06 07:17:29 morsch | |
43 | Pyr gives random number r in interval 0 < r < 1. | |
44 | ||
45 | Revision 1.22 2002/04/26 10:28:48 morsch | |
46 | Option kPyBeautyPbMNR added (N. Carrer). | |
47 | ||
48 | Revision 1.21 2002/03/25 14:46:16 morsch | |
49 | Case kPyD0PbMNR added (N. Carrer). | |
50 | ||
51 | Revision 1.20 2002/03/03 13:48:50 morsch | |
52 | Option kPyCharmPbMNR added. Produce charm pairs in agreement with MNR | |
53 | NLO calculations (Nicola Carrer). | |
54 | ||
55 | Revision 1.19 2002/02/20 08:52:20 morsch | |
56 | Correct documentation of SetNuclei method. | |
57 | ||
58 | Revision 1.18 2002/02/07 10:43:06 morsch | |
59 | Tuned pp-min.bias settings (M.Monteno, R.Ugoccioni and N.Carrer) | |
60 | ||
61 | Revision 1.17 2001/12/19 15:40:43 morsch | |
62 | For kPyJets enforce simple jet topology, i.e no initial or final state | |
63 | gluon radiation and no primordial pT. | |
64 | ||
65 | Revision 1.16 2001/10/12 11:13:59 morsch | |
66 | Missing break statements added (thanks to Nicola Carrer) | |
67 | ||
68 | Revision 1.15 2001/03/27 10:54:50 morsch | |
69 | Add ResetDecayTable() and SsetDecayTable() methods. | |
70 | ||
71 | Revision 1.14 2001/03/09 13:03:40 morsch | |
72 | Process_t and Struc_Func_t moved to AliPythia.h | |
73 | ||
74 | Revision 1.13 2000/12/18 08:55:35 morsch | |
75 | Make AliPythia dependent generartors work with new scheme of random number generation | |
76 | ||
77 | Revision 1.12 2000/11/30 07:12:50 alibrary | |
78 | Introducing new Rndm and QA classes | |
79 | ||
80 | Revision 1.11 2000/10/20 06:30:06 fca | |
81 | Use version 0 to avoid streamer generation | |
82 | ||
83 | Revision 1.10 2000/10/06 14:18:44 morsch | |
84 | Upper cut of prim. pT distribution set to 5. GeV | |
85 | ||
86 | Revision 1.9 2000/09/18 10:41:35 morsch | |
87 | Add possibility to use nuclear structure functions from PDF library V8. | |
88 | ||
89 | Revision 1.8 2000/09/06 14:26:24 morsch | |
90 | Decayer functionality of AliPythia has been moved to AliDecayerPythia. | |
91 | Class is now a singleton. | |
92 | ||
93 | Revision 1.7 2000/06/09 20:34:50 morsch | |
94 | All coding rule violations except RS3 corrected | |
95 | ||
96 | Revision 1.6 1999/11/09 07:38:48 fca | |
97 | Changes for compatibility with version 2.23 of ROOT | |
98 | ||
99 | Revision 1.5 1999/11/03 17:43:20 fca | |
100 | New version from G.Martinez & A.Morsch | |
101 | ||
102 | Revision 1.4 1999/09/29 09:24:14 fca | |
103 | Introduction of the Copyright and cvs Log | |
104 | ||
105 | */ | |
106 | ||
107 | ||
108 | #include "AliPythia.h" | |
109 | ||
110 | ClassImp(AliPythia) | |
111 | ||
112 | #ifndef WIN32 | |
113 | # define pyclus pyclus_ | |
114 | # define pycell pycell_ | |
115 | # define type_of_call | |
116 | #else | |
117 | # define pyclus PYCLUS | |
118 | # define pycell PYCELL | |
119 | # define type_of_call _stdcall | |
120 | #endif | |
121 | ||
122 | extern "C" void type_of_call pyclus(Int_t & ); | |
123 | extern "C" void type_of_call pycell(Int_t & ); | |
124 | ||
125 | //_____________________________________________________________________________ | |
126 | ||
127 | AliPythia* AliPythia::fgAliPythia=NULL; | |
128 | ||
129 | AliPythia::AliPythia() | |
130 | { | |
131 | // Default Constructor | |
132 | // | |
133 | // Set random number | |
134 | if (!sRandom) sRandom=fRandom; | |
135 | ||
136 | } | |
137 | ||
138 | void AliPythia::ProcInit(Process_t process, Float_t energy, StrucFunc_t strucfunc) | |
139 | { | |
140 | // Initialise the process to generate | |
141 | if (!sRandom) sRandom = gRandom; | |
142 | ||
143 | fProcess = process; | |
144 | fEcms = energy; | |
145 | fStrucFunc = strucfunc; | |
146 | // don't decay p0 | |
147 | SetMDCY(Pycomp(111),1,0); | |
148 | // select structure function | |
149 | SetMSTP(52,2); | |
150 | SetMSTP(51,strucfunc); | |
151 | // | |
152 | // Pythia initialisation for selected processes// | |
153 | // | |
154 | // Make MSEL clean | |
155 | // | |
156 | for (Int_t i=1; i<= 200; i++) { | |
157 | SetMSUB(i,0); | |
158 | } | |
159 | // select charm production | |
160 | switch (process) | |
161 | { | |
162 | case kPyCharm: | |
163 | SetMSEL(4); | |
164 | // | |
165 | // heavy quark masses | |
166 | ||
167 | SetPMAS(4,1,1.2); | |
168 | SetMSTU(16,2); | |
169 | // | |
170 | // primordial pT | |
171 | SetMSTP(91,1); | |
172 | SetPARP(91,1.); | |
173 | SetPARP(93,5.); | |
174 | // | |
175 | break; | |
176 | case kPyBeauty: | |
177 | SetMSEL(5); | |
178 | SetPMAS(5,1,4.75); | |
179 | SetMSTU(16,2); | |
180 | break; | |
181 | case kPyJpsi: | |
182 | SetMSEL(0); | |
183 | // gg->J/Psi g | |
184 | SetMSUB(86,1); | |
185 | break; | |
186 | case kPyJpsiChi: | |
187 | SetMSEL(0); | |
188 | // gg->J/Psi g | |
189 | SetMSUB(86,1); | |
190 | // gg-> chi_0c g | |
191 | SetMSUB(87,1); | |
192 | // gg-> chi_1c g | |
193 | SetMSUB(88,1); | |
194 | // gg-> chi_2c g | |
195 | SetMSUB(89,1); | |
196 | break; | |
197 | case kPyCharmUnforced: | |
198 | SetMSEL(0); | |
199 | // gq->qg | |
200 | SetMSUB(28,1); | |
201 | // gg->qq | |
202 | SetMSUB(53,1); | |
203 | // gg->gg | |
204 | SetMSUB(68,1); | |
205 | break; | |
206 | case kPyBeautyUnforced: | |
207 | SetMSEL(0); | |
208 | // gq->qg | |
209 | SetMSUB(28,1); | |
210 | // gg->qq | |
211 | SetMSUB(53,1); | |
212 | // gg->gg | |
213 | SetMSUB(68,1); | |
214 | break; | |
215 | case kPyMb: | |
216 | // Minimum Bias pp-Collisions | |
217 | // | |
218 | // | |
219 | // select Pythia min. bias model | |
220 | SetMSEL(0); | |
221 | SetMSUB(92,1); // single diffraction AB-->XB | |
222 | SetMSUB(93,1); // single diffraction AB-->AX | |
223 | SetMSUB(94,1); // double diffraction | |
224 | SetMSUB(95,1); // low pt production | |
225 | SetMSTP(81,1); // multiple interactions switched on | |
226 | SetMSTP(82,3); // model with varying impact param. & a single Gaussian | |
227 | SetPARP(82,3.47); // set value pT_0 for turn-off of the cross section of | |
228 | // multiple interaction at a reference energy = 14000 GeV | |
229 | SetPARP(89,14000.); // reference energy for the above parameter | |
230 | SetPARP(90,0.174); // set exponent for energy dependence of pT_0 | |
231 | case kPyMbNonDiffr: | |
232 | // Minimum Bias pp-Collisions | |
233 | // | |
234 | // | |
235 | // select Pythia min. bias model | |
236 | SetMSEL(0); | |
237 | SetMSUB(95,1); // low pt production | |
238 | SetMSTP(81,1); // multiple interactions switched on | |
239 | SetMSTP(82,3); // model with varying impact param. & a single Gaussian | |
240 | SetPARP(82,3.47); // set value pT_0 for turn-off of the cross section of | |
241 | // multiple interaction at a reference energy = 14000 GeV | |
242 | SetPARP(89,14000.); // reference energy for the above parameter | |
243 | SetPARP(90,0.174); // set exponent for energy dependence of pT_0 | |
244 | ||
245 | break; | |
246 | case kPyJets: | |
247 | // | |
248 | // QCD Jets | |
249 | // | |
250 | SetMSEL(1); | |
251 | break; | |
252 | case kPyDirectGamma: | |
253 | SetMSEL(10); | |
254 | break; | |
adf4d898 | 255 | case kPyCharmPbPbMNR: |
256 | case kPyD0PbPbMNR: | |
8d2cd130 | 257 | // Tuning of Pythia parameters aimed to get a resonable agreement |
258 | // between with the NLO calculation by Mangano, Nason, Ridolfi for the | |
259 | // c-cbar single inclusive and double differential distributions. | |
260 | // This parameter settings are meant to work with Pb-Pb collisions | |
adf4d898 | 261 | // (AliGenPythia::SetNuclei) and with kCTEQ4L PDFs. |
8d2cd130 | 262 | // To get a good agreement the minimum ptHard (AliGenPythia::SetPtHard) |
263 | // has to be set to 2.1GeV. Example in ConfigCharmPPR.C. | |
264 | ||
265 | // All QCD processes | |
266 | SetMSEL(1); | |
267 | ||
268 | // No multiple interactions | |
269 | SetMSTP(81,0); | |
270 | SetPARP(81,0.0); | |
271 | SetPARP(82,0.0); | |
272 | ||
273 | // Initial/final parton shower on (Pythia default) | |
274 | SetMSTP(61,1); | |
275 | SetMSTP(71,1); | |
276 | ||
277 | // 2nd order alpha_s | |
278 | SetMSTP(2,2); | |
279 | ||
280 | // QCD scales | |
281 | SetMSTP(32,2); | |
282 | SetPARP(34,1.0); | |
283 | ||
adf4d898 | 284 | // Intrinsic <kT> |
8d2cd130 | 285 | SetMSTP(91,1); |
286 | SetPARP(91,1.304); | |
287 | SetPARP(93,6.52); | |
288 | ||
289 | // Set c-quark mass | |
290 | SetPMAS(4,1,1.2); | |
291 | ||
292 | break; | |
adf4d898 | 293 | case kPyCharmpPbMNR: |
294 | case kPyD0pPbMNR: | |
295 | // Tuning of Pythia parameters aimed to get a resonable agreement | |
296 | // between with the NLO calculation by Mangano, Nason, Ridolfi for the | |
297 | // c-cbar single inclusive and double differential distributions. | |
298 | // This parameter settings are meant to work with p-Pb collisions | |
299 | // (AliGenPythia::SetNuclei) and with kCTEQ4L PDFs. | |
300 | // To get a good agreement the minimum ptHard (AliGenPythia::SetPtHard) | |
301 | // has to be set to 2.1GeV. Example in ConfigCharmPPR.C. | |
302 | ||
303 | // All QCD processes | |
304 | SetMSEL(1); | |
305 | ||
306 | // No multiple interactions | |
307 | SetMSTP(81,0); | |
308 | SetPARP(81,0.0); | |
309 | SetPARP(82,0.0); | |
310 | ||
311 | // Initial/final parton shower on (Pythia default) | |
312 | SetMSTP(61,1); | |
313 | SetMSTP(71,1); | |
314 | ||
315 | // 2nd order alpha_s | |
316 | SetMSTP(2,2); | |
317 | ||
318 | // QCD scales | |
319 | SetMSTP(32,2); | |
320 | SetPARP(34,1.0); | |
321 | ||
322 | // Intrinsic <kT> | |
323 | SetMSTP(91,1); | |
324 | SetPARP(91,1.16); | |
325 | SetPARP(93,5.8); | |
326 | ||
327 | // Set c-quark mass | |
328 | SetPMAS(4,1,1.2); | |
329 | ||
330 | break; | |
331 | case kPyCharmppMNR: | |
332 | case kPyD0ppMNR: | |
333 | // Tuning of Pythia parameters aimed to get a resonable agreement | |
334 | // between with the NLO calculation by Mangano, Nason, Ridolfi for the | |
335 | // c-cbar single inclusive and double differential distributions. | |
336 | // This parameter settings are meant to work with pp collisions | |
337 | // (AliGenPythia::SetNuclei) and with kCTEQ4L PDFs. | |
338 | // To get a good agreement the minimum ptHard (AliGenPythia::SetPtHard) | |
339 | // has to be set to 2.1GeV. Example in ConfigCharmPPR.C. | |
340 | ||
341 | // All QCD processes | |
342 | SetMSEL(1); | |
343 | ||
344 | // No multiple interactions | |
345 | SetMSTP(81,0); | |
346 | SetPARP(81,0.0); | |
347 | SetPARP(82,0.0); | |
348 | ||
349 | // Initial/final parton shower on (Pythia default) | |
350 | SetMSTP(61,1); | |
351 | SetMSTP(71,1); | |
352 | ||
353 | // 2nd order alpha_s | |
354 | SetMSTP(2,2); | |
355 | ||
356 | // QCD scales | |
357 | SetMSTP(32,2); | |
358 | SetPARP(34,1.0); | |
359 | ||
360 | // Intrinsic <kT^2> | |
361 | SetMSTP(91,1); | |
362 | SetPARP(91,1.); | |
363 | SetPARP(93,5.); | |
364 | ||
365 | // Set c-quark mass | |
366 | SetPMAS(4,1,1.2); | |
367 | ||
368 | break; | |
369 | case kPyBeautyPbPbMNR: | |
8d2cd130 | 370 | // Tuning of Pythia parameters aimed to get a resonable agreement |
371 | // between with the NLO calculation by Mangano, Nason, Ridolfi for the | |
372 | // b-bbar single inclusive and double differential distributions. | |
373 | // This parameter settings are meant to work with Pb-Pb collisions | |
374 | // (AliGenPythia::SetNuclei) and with kCTEQ4L PDFs. | |
375 | // To get a good agreement the minimum ptHard (AliGenPythia::SetPtHard) | |
376 | // has to be set to 2.75GeV. Example in ConfigBeautyPPR.C. | |
377 | ||
378 | // All QCD processes | |
379 | SetMSEL(1); | |
380 | ||
381 | // No multiple interactions | |
382 | SetMSTP(81,0); | |
383 | SetPARP(81,0.0); | |
384 | SetPARP(82,0.0); | |
385 | ||
386 | // Initial/final parton shower on (Pythia default) | |
387 | SetMSTP(61,1); | |
388 | SetMSTP(71,1); | |
389 | ||
390 | // 2nd order alpha_s | |
391 | SetMSTP(2,2); | |
392 | ||
393 | // QCD scales | |
394 | SetMSTP(32,2); | |
395 | SetPARP(34,1.0); | |
396 | SetPARP(67,1.0); | |
397 | SetPARP(71,1.0); | |
398 | ||
adf4d898 | 399 | // Intrinsic <kT> |
8d2cd130 | 400 | SetMSTP(91,1); |
401 | SetPARP(91,2.035); | |
402 | SetPARP(93,10.17); | |
403 | ||
404 | // Set b-quark mass | |
405 | SetPMAS(5,1,4.75); | |
406 | ||
adf4d898 | 407 | break; |
408 | case kPyBeautypPbMNR: | |
409 | // Tuning of Pythia parameters aimed to get a resonable agreement | |
410 | // between with the NLO calculation by Mangano, Nason, Ridolfi for the | |
411 | // b-bbar single inclusive and double differential distributions. | |
412 | // This parameter settings are meant to work with p-Pb collisions | |
413 | // (AliGenPythia::SetNuclei) and with kCTEQ4L PDFs. | |
414 | // To get a good agreement the minimum ptHard (AliGenPythia::SetPtHard) | |
415 | // has to be set to 2.75GeV. Example in ConfigBeautyPPR.C. | |
416 | ||
417 | // All QCD processes | |
418 | SetMSEL(1); | |
419 | ||
420 | // No multiple interactions | |
421 | SetMSTP(81,0); | |
422 | SetPARP(81,0.0); | |
423 | SetPARP(82,0.0); | |
424 | ||
425 | // Initial/final parton shower on (Pythia default) | |
426 | SetMSTP(61,1); | |
427 | SetMSTP(71,1); | |
428 | ||
429 | // 2nd order alpha_s | |
430 | SetMSTP(2,2); | |
431 | ||
432 | // QCD scales | |
433 | SetMSTP(32,2); | |
434 | SetPARP(34,1.0); | |
435 | SetPARP(67,1.0); | |
436 | SetPARP(71,1.0); | |
437 | ||
438 | // Intrinsic <kT> | |
439 | SetMSTP(91,1); | |
440 | SetPARP(91,1.60); | |
441 | SetPARP(93,8.00); | |
442 | ||
443 | // Set b-quark mass | |
444 | SetPMAS(5,1,4.75); | |
445 | ||
446 | break; | |
447 | case kPyBeautyppMNR: | |
448 | // Tuning of Pythia parameters aimed to get a resonable agreement | |
449 | // between with the NLO calculation by Mangano, Nason, Ridolfi for the | |
450 | // b-bbar single inclusive and double differential distributions. | |
451 | // This parameter settings are meant to work with pp collisions | |
452 | // (AliGenPythia::SetNuclei) and with kCTEQ4L PDFs. | |
453 | // To get a good agreement the minimum ptHard (AliGenPythia::SetPtHard) | |
454 | // has to be set to 2.75GeV. Example in ConfigBeautyPPR.C. | |
455 | ||
456 | // All QCD processes | |
457 | SetMSEL(1); | |
458 | ||
459 | // No multiple interactions | |
460 | SetMSTP(81,0); | |
461 | SetPARP(81,0.0); | |
462 | SetPARP(82,0.0); | |
463 | ||
464 | // Initial/final parton shower on (Pythia default) | |
465 | SetMSTP(61,1); | |
466 | SetMSTP(71,1); | |
467 | ||
468 | // 2nd order alpha_s | |
469 | SetMSTP(2,2); | |
470 | ||
471 | // QCD scales | |
472 | SetMSTP(32,2); | |
473 | SetPARP(34,1.0); | |
474 | SetPARP(67,1.0); | |
475 | SetPARP(71,1.0); | |
476 | ||
477 | // Intrinsic <kT> | |
478 | SetMSTP(91,1); | |
479 | SetPARP(91,1.); | |
480 | SetPARP(93,5.); | |
481 | ||
482 | // Set b-quark mass | |
483 | SetPMAS(5,1,4.75); | |
484 | ||
8d2cd130 | 485 | break; |
486 | } | |
487 | // | |
488 | // Initialize PYTHIA | |
489 | SetMSTP(41,1); // all resonance decays switched on | |
490 | ||
491 | Initialize("CMS","p","p",fEcms); | |
492 | ||
493 | } | |
494 | ||
495 | Int_t AliPythia::CheckedLuComp(Int_t kf) | |
496 | { | |
497 | // Check Lund particle code (for debugging) | |
498 | Int_t kc=Pycomp(kf); | |
499 | printf("\n Lucomp kf,kc %d %d",kf,kc); | |
500 | return kc; | |
501 | } | |
502 | ||
503 | void AliPythia::SetNuclei(Int_t a1, Int_t a2) | |
504 | { | |
505 | // Treat protons as inside nuclei with mass numbers a1 and a2 | |
506 | // The MSTP array in the PYPARS common block is used to enable and | |
507 | // select the nuclear structure functions. | |
508 | // MSTP(52) : (D=1) choice of proton and nuclear structure-function library | |
509 | // =1: internal PYTHIA acording to MSTP(51) | |
510 | // =2: PDFLIB proton s.f., with MSTP(51) = 1000xNGROUP+NSET | |
511 | // If the following mass number both not equal zero, nuclear corrections of the stf are used. | |
512 | // MSTP(192) : Mass number of nucleus side 1 | |
513 | // MSTP(193) : Mass number of nucleus side 2 | |
514 | SetMSTP(52,2); | |
515 | SetMSTP(192, a1); | |
516 | SetMSTP(193, a2); | |
517 | } | |
518 | ||
519 | ||
520 | AliPythia* AliPythia::Instance() | |
521 | { | |
522 | // Set random number generator | |
523 | if (fgAliPythia) { | |
524 | return fgAliPythia; | |
525 | } else { | |
526 | fgAliPythia = new AliPythia(); | |
527 | return fgAliPythia; | |
528 | } | |
529 | } | |
530 | ||
531 | void AliPythia::PrintParticles() | |
532 | { | |
533 | // Print list of particl properties | |
534 | Int_t np = 0; | |
535 | ||
536 | for (Int_t kf=0; kf<1000000; kf++) { | |
537 | for (Int_t c = 1; c > -2; c-=2) { | |
538 | ||
539 | Int_t kc = Pycomp(c*kf); | |
540 | if (kc) { | |
541 | Float_t mass = GetPMAS(kc,1); | |
542 | Float_t width = GetPMAS(kc,2); | |
543 | Float_t tau = GetPMAS(kc,4); | |
544 | ||
545 | char* name = new char[8]; | |
546 | Pyname(kf,name); | |
547 | ||
548 | np++; | |
549 | ||
550 | printf("\n mass, width, tau: %6d %s %10.3f %10.3e %10.3e", | |
551 | c*kf, name, mass, width, tau); | |
552 | } | |
553 | } | |
554 | } | |
555 | printf("\n Number of particles %d \n \n", np); | |
556 | } | |
557 | ||
558 | void AliPythia::ResetDecayTable() | |
559 | { | |
560 | // Set default values for pythia decay switches | |
561 | Int_t i; | |
562 | for (i = 1; i < 501; i++) SetMDCY(i,1,fDefMDCY[i]); | |
563 | for (i = 1; i < 2001; i++) SetMDME(i,1,fDefMDME[i]); | |
564 | } | |
565 | ||
566 | void AliPythia::SetDecayTable() | |
567 | { | |
568 | // Set default values for pythia decay switches | |
569 | // | |
570 | Int_t i; | |
571 | for (i = 1; i < 501; i++) fDefMDCY[i] = GetMDCY(i,1); | |
572 | for (i = 1; i < 2001; i++) fDefMDME[i] = GetMDME(i,1); | |
573 | } | |
574 | ||
575 | void AliPythia::Pyclus(Int_t& njet) | |
576 | { | |
577 | // Call Pythia clustering algorithm | |
578 | // | |
579 | pyclus(njet); | |
580 | } | |
581 | ||
582 | void AliPythia::Pycell(Int_t& njet) | |
583 | { | |
584 | // Call Pythia jet reconstruction algorithm | |
585 | // | |
586 | pycell(njet); | |
587 | } | |
588 | ||
589 | ||
590 | ||
591 | #ifndef WIN32 | |
592 | #define pyr pyr_ | |
593 | #define pyrset pyrset_ | |
594 | #define pyrget pyrget_ | |
595 | #define pyclus pyclus_ | |
596 | #define pycell pycell_ | |
597 | #else | |
598 | #define pyr PYR | |
599 | #define pyrset PYRSET | |
600 | #define pyrget PYRGET | |
601 | #define pyclus PYCLUS | |
602 | #define pycell PYCELL | |
603 | #endif | |
604 | ||
605 | extern "C" { | |
606 | Double_t pyr(Int_t*) | |
607 | { | |
608 | Float_t r; | |
609 | do r=sRandom->Rndm(); while(0 >= r || r >= 1); | |
610 | return r; | |
611 | } | |
612 | void pyrset(Int_t*,Int_t*) {} | |
613 | void pyrget(Int_t*,Int_t*) {} | |
614 | } | |
615 | ||
616 | ||
617 | ||
618 | ||
619 |