- Add omega forced decay.
[u/mrichter/AliRoot.git] / EVGEN / AliGenPythia.cxx
CommitLineData
4c039060 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$Log$
fd8fb861 18Revision 1.46 2001/12/19 10:36:19 morsch
19Add possibility if jet kinematic biasing.
20
988b118b 21Revision 1.45 2001/11/28 08:06:52 morsch
22Use fMaxLifeTime parameter.
23
8cdfd303 24Revision 1.44 2001/11/27 13:13:07 morsch
25Maximum lifetime for long-lived particles to be put on the stack is parameter.
26It can be set via SetMaximumLifetime(..).
27
47fc6bd5 28Revision 1.43 2001/10/21 18:35:56 hristov
29Several pointers were set to zero in the default constructors to avoid memory management problems
30
2685bf00 31Revision 1.42 2001/10/15 08:21:55 morsch
32Vertex truncation settings moved to AliGenMC.
33
4c07486d 34Revision 1.41 2001/10/08 08:45:42 morsch
35Possibility of vertex cut added.
36
a0b2b296 37Revision 1.40 2001/09/25 11:30:23 morsch
38Pass event vertex to header.
39
c5d36e84 40Revision 1.39 2001/07/27 17:09:36 morsch
41Use local SetTrack, KeepTrack and SetHighWaterMark methods
42to delegate either to local stack or to stack owned by AliRun.
43(Piotr Skowronski, A.M.)
44
a99cf51f 45Revision 1.38 2001/07/13 10:58:54 morsch
46- Some coded moved to AliGenMC
47- Improved handling of secondary vertices.
48
fff02fee 49Revision 1.37 2001/06/28 11:17:28 morsch
50SetEventListRange setter added. Events in specified range are listed for
51debugging. (Yuri Kharlov)
52
11dfaf8d 53Revision 1.36 2001/03/30 07:05:49 morsch
54Final print-out in finish run.
55Write parton system for jet-production (preliminary solution).
56
9be6226f 57Revision 1.35 2001/03/09 13:03:40 morsch
58Process_t and Struc_Func_t moved to AliPythia.h
59
f1a48a38 60Revision 1.34 2001/02/14 15:50:40 hristov
61The last particle in event marked using SetHighWaterMark
62
28adac24 63Revision 1.33 2001/01/30 09:23:12 hristov
64Streamers removed (R.Brun)
65
a8a6107b 66Revision 1.32 2001/01/26 19:55:51 hristov
67Major upgrade of AliRoot code
68
2ab0c725 69Revision 1.31 2001/01/17 10:54:31 hristov
70Better protection against FPE
71
0f9e52a3 72Revision 1.30 2000/12/18 08:55:35 morsch
73Make AliPythia dependent generartors work with new scheme of random number generation
74
3356c022 75Revision 1.29 2000/12/04 11:22:03 morsch
76Init of sRandom as in 1.15
77
097ec7c1 78Revision 1.28 2000/12/02 11:41:39 morsch
79Use SetRandom() to initialize random number generator in constructor.
80
1ed25e11 81Revision 1.27 2000/11/30 20:29:02 morsch
82Initialise static variable sRandom in constructor: sRandom = fRandom;
83
ad1df918 84Revision 1.26 2000/11/30 07:12:50 alibrary
85Introducing new Rndm and QA classes
86
65fb704d 87Revision 1.25 2000/10/18 19:11:27 hristov
88Division by zero fixed
89
919c2096 90Revision 1.24 2000/09/18 10:41:35 morsch
91Add possibility to use nuclear structure functions from PDF library V8.
92
811826d8 93Revision 1.23 2000/09/14 14:05:40 morsch
94dito
95
819f84ad 96Revision 1.22 2000/09/14 14:02:22 morsch
97- Correct conversion from mm to cm when passing particle vertex to MC.
98- Correct handling of fForceDecay == all.
99
4451ef92 100Revision 1.21 2000/09/12 14:14:55 morsch
101Call fDecayer->ForceDecay() at the beginning of Generate().
102
00d6ce7d 103Revision 1.20 2000/09/06 14:29:33 morsch
104Use AliPythia for event generation an AliDecayPythia for decays.
105Correct handling of "nodecay" option
106
18edb254 107Revision 1.19 2000/07/11 18:24:56 fca
108Coding convention corrections + few minor bug fixes
109
aee8290b 110Revision 1.18 2000/06/30 12:40:34 morsch
111Pythia takes care of vertex smearing. Correct conversion from Pythia units (mm) to
112Geant units (cm).
113
1512e357 114Revision 1.17 2000/06/09 20:34:07 morsch
115All coding rule violations except RS3 corrected
116
f87cfe57 117Revision 1.16 2000/05/15 15:04:20 morsch
118The full event is written for fNtrack = -1
119Coding rule violations corrected.
120
5ddeb374 121Revision 1.15 2000/04/26 10:14:24 morsch
122Particles array has one entry more than pythia particle list. Upper bound of
123particle loop changed to np-1 (R. Guernane, AM)
124
2a0e6f5b 125Revision 1.14 2000/04/05 08:36:13 morsch
126Check status code of particles in Pythia event
127to avoid double counting as partonic state and final state particle.
128
23211d3e 129Revision 1.13 1999/11/09 07:38:48 fca
130Changes for compatibility with version 2.23 of ROOT
131
084c1b4a 132Revision 1.12 1999/11/03 17:43:20 fca
133New version from G.Martinez & A.Morsch
134
886b6f73 135Revision 1.11 1999/09/29 09:24:14 fca
136Introduction of the Copyright and cvs Log
4c039060 137*/
138
fe4da5cc 139#include "AliGenPythia.h"
fff02fee 140#include "AliGenPythiaEventHeader.h"
18edb254 141#include "AliDecayerPythia.h"
fe4da5cc 142#include "AliRun.h"
143#include "AliPythia.h"
18edb254 144#include "AliPDG.h"
1578254f 145#include <TParticle.h>
18edb254 146#include <TSystem.h>
f87cfe57 147
fe4da5cc 148 ClassImp(AliGenPythia)
149
150AliGenPythia::AliGenPythia()
fff02fee 151 :AliGenMC()
fe4da5cc 152{
18edb254 153// Default Constructor
2685bf00 154 fParticles = 0;
155 fPythia = 0;
988b118b 156 fDecayer = new AliDecayerPythia();
11dfaf8d 157 SetEventListRange();
988b118b 158 SetJetPhiRange();
159 SetJetEtaRange();
fe4da5cc 160}
161
162AliGenPythia::AliGenPythia(Int_t npart)
fff02fee 163 :AliGenMC(npart)
fe4da5cc 164{
165// default charm production at 5. 5 TeV
166// semimuonic decay
167// structure function GRVHO
168//
169 fXsection = 0.;
811826d8 170 fNucA1=0;
171 fNucA2=0;
fe4da5cc 172 SetProcess();
173 SetStrucFunc();
886b6f73 174 SetForceDecay();
fe4da5cc 175 SetPtHard();
176 SetEnergyCMS();
18edb254 177 fDecayer = new AliDecayerPythia();
1ed25e11 178 // Set random number generator
097ec7c1 179 sRandom=fRandom;
fff02fee 180 fFlavorSelect = 0;
181 // Produced particles
182 fParticles = new TClonesArray("TParticle",1000);
c5d36e84 183 fEventVertex.Set(3);
988b118b 184 SetEventListRange();
185 SetJetPhiRange();
186 SetJetEtaRange();
fe4da5cc 187}
188
f87cfe57 189AliGenPythia::AliGenPythia(const AliGenPythia & Pythia)
190{
191// copy constructor
192}
193
fe4da5cc 194AliGenPythia::~AliGenPythia()
195{
5ddeb374 196// Destructor
fe4da5cc 197}
198
11dfaf8d 199void AliGenPythia::SetEventListRange(Int_t eventFirst, Int_t eventLast)
200{
201 // Set a range of event numbers, for which a table
202 // of generated particle will be printed
203 fDebugEventFirst = eventFirst;
204 fDebugEventLast = eventLast;
205 if (fDebugEventLast==-1) fDebugEventLast=fDebugEventFirst;
206}
207
fe4da5cc 208void AliGenPythia::Init()
209{
5ddeb374 210// Initialisation
18edb254 211 SetMC(AliPythia::Instance());
fe4da5cc 212 fPythia=(AliPythia*) fgMCEvGen;
213//
214 fParentWeight=1./Float_t(fNpart);
215//
216// Forward Paramters to the AliPythia object
00d6ce7d 217 fDecayer->SetForceDecay(fForceDecay);
18edb254 218 fDecayer->Init();
00d6ce7d 219
18edb254 220
fe4da5cc 221 fPythia->SetCKIN(3,fPtHardMin);
222 fPythia->SetCKIN(4,fPtHardMax);
811826d8 223 if (fNucA1 > 0 && fNucA2 > 0) fPythia->SetNuclei(fNucA1, fNucA2);
fe4da5cc 224 fPythia->ProcInit(fProcess,fEnergyCMS,fStrucFunc);
18edb254 225
226 // fPythia->Pylist(0);
227 // fPythia->Pystat(2);
fe4da5cc 228// Parent and Children Selection
229 switch (fProcess)
230 {
f1a48a38 231 case kPyCharm:
fff02fee 232 fParentSelect[0] = 411;
233 fParentSelect[1] = 421;
234 fParentSelect[2] = 431;
235 fParentSelect[3] = 4122;
236 fFlavorSelect = 4;
fe4da5cc 237 break;
f1a48a38 238 case kPyCharmUnforced:
fff02fee 239 fParentSelect[0] = 411;
240 fParentSelect[1] = 421;
241 fParentSelect[2] = 431;
242 fParentSelect[3]= 4122;
243 fFlavorSelect = 4;
fe4da5cc 244 break;
f1a48a38 245 case kPyBeauty:
fff02fee 246 fParentSelect[0]= 511;
247 fParentSelect[1]= 521;
248 fParentSelect[2]= 531;
249 fParentSelect[3]= 5122;
250 fParentSelect[4]= 5132;
251 fParentSelect[5]= 5232;
252 fParentSelect[6]= 5332;
253 fFlavorSelect = 5;
fe4da5cc 254 break;
f1a48a38 255 case kPyBeautyUnforced:
fff02fee 256 fParentSelect[0] = 511;
257 fParentSelect[1] = 521;
258 fParentSelect[2] = 531;
259 fParentSelect[3] = 5122;
260 fParentSelect[4] = 5132;
261 fParentSelect[5] = 5232;
262 fParentSelect[6] = 5332;
263 fFlavorSelect = 5;
fe4da5cc 264 break;
f1a48a38 265 case kPyJpsiChi:
266 case kPyJpsi:
fff02fee 267 fParentSelect[0] = 443;
fe4da5cc 268 break;
f1a48a38 269 case kPyMb:
270 case kPyJets:
271 case kPyDirectGamma:
5be1fe76 272 break;
fe4da5cc 273 }
fff02fee 274 AliGenMC::Init();
fe4da5cc 275}
276
277void AliGenPythia::Generate()
278{
5ddeb374 279// Generate one event
00d6ce7d 280 fDecayer->ForceDecay();
a0b2b296 281
9be6226f 282 Float_t polar[3] = {0,0,0};
283 Float_t origin[3] = {0,0,0};
fff02fee 284 Float_t p[3];
5be1fe76 285// converts from mm/c to s
286 const Float_t kconv=0.001/2.999792458e8;
fe4da5cc 287//
fe4da5cc 288 Int_t nt=0;
289 Int_t jev=0;
7921755b 290 Int_t j, kf;
fe4da5cc 291 fTrials=0;
fff02fee 292
fd8fb861 293 // Set collision vertex position
aee8290b 294 if(fVertexSmear==kPerEvent) {
1512e357 295 fPythia->SetMSTP(151,1);
fe4da5cc 296 for (j=0;j<3;j++) {
fff02fee 297 fPythia->SetPARP(151+j, fOsigma[j]*10.);
fe4da5cc 298 }
aee8290b 299 } else if (fVertexSmear==kPerTrack) {
fe4da5cc 300 fPythia->SetMSTP(151,0);
fe4da5cc 301 }
fff02fee 302// event loop
fe4da5cc 303 while(1)
304 {
084c1b4a 305 fPythia->Pyevnt();
11dfaf8d 306 if (gAlice->GetEvNumber()>=fDebugEventFirst &&
307 gAlice->GetEvNumber()<=fDebugEventLast) fPythia->Pylist(1);
fe4da5cc 308 fTrials++;
47fc6bd5 309
fff02fee 310 fPythia->ImportParticles(fParticles,"All");
311
312//
313//
314//
315 Int_t i;
316
317 Int_t np = fParticles->GetEntriesFast();
a0b2b296 318 if (np == 0 ) continue;
319// Get event vertex and discard the event if the Z coord. is too big
4c07486d 320 TParticle *iparticle = (TParticle *) fParticles->At(0);
321 Float_t distz = iparticle->Vz()/10.;
322 if(TMath::Abs(distz)>fCutVertexZ*fOsigma[2]) continue;
a0b2b296 323//
4c07486d 324 fEventVertex[0] = iparticle->Vx()/10.+fOrigin.At(0);
325 fEventVertex[1] = iparticle->Vy()/10.+fOrigin.At(1);
326 fEventVertex[2] = iparticle->Vz()/10.+fOrigin.At(2);
a0b2b296 327//
fff02fee 328 Int_t* pParent = new Int_t[np];
329 Int_t* pSelected = new Int_t[np];
330 Int_t* trackIt = new Int_t[np];
331 for (i=0; i< np-1; i++) {
332 pParent[i] = -1;
333 pSelected[i] = 0;
334 }
fe4da5cc 335 printf("\n **************************************************%d\n",np);
fff02fee 336 Int_t nc = 0;
f1a48a38 337 if (fProcess != kPyMb && fProcess != kPyJets && fProcess != kPyDirectGamma) {
fd8fb861 338
fff02fee 339 for (i = 0; i<np-1; i++) {
c5d36e84 340 iparticle = (TParticle *) fParticles->At(i);
23211d3e 341 Int_t ks = iparticle->GetStatusCode();
a8228d85 342 kf = CheckPDGCode(iparticle->GetPdgCode());
fff02fee 343// No initial state partons
2a0e6f5b 344 if (ks==21) continue;
fe4da5cc 345//
fff02fee 346// Heavy Flavor Selection
5be1fe76 347//
fff02fee 348 // quark ?
349 kf = TMath::Abs(kf);
350 Int_t kfl = kf;
351 // meson ?
352 if (kfl > 10) kfl/=100;
353 // baryon
354 if (kfl > 10) kfl/=10;
355 if (kfl > 10) kfl/=10;
356
357 Int_t ipa = iparticle->GetFirstMother()-1;
358 Int_t kfMo = 0;
359
360 if (ipa > -1) {
361 TParticle * mother = (TParticle *) fParticles->At(ipa);
362 kfMo = TMath::Abs(mother->GetPdgCode());
363 }
364// printf("\n particle (all) %d %d %d", i, pSelected[i], kf);
365 if (kfl >= fFlavorSelect) {
5be1fe76 366//
fff02fee 367// Heavy flavor hadron or quark
fe4da5cc 368//
fff02fee 369// Kinematic seletion on final state heavy flavor mesons
370 if (ParentSelected(kf) && !KinematicSelection(iparticle, 0))
371 {
372 nc = -1;
373 break;
374 }
375 pSelected[i] = 1;
376// printf("\n particle (HF) %d %d %d", i, pSelected[i], kf);
377 } else {
378// Kinematic seletion on decay products
379 if (fCutOnChild && ParentSelected(kfMo) && ChildSelected(kf)
380 && !KinematicSelection(iparticle, 1))
381 {
382 nc = -1;
383 break;
384 }
fe4da5cc 385//
fff02fee 386// Decay products
387// Select if mother was selected and is not tracked
388
389 if (pSelected[ipa] &&
390 !trackIt[ipa] && // mother will be tracked ?
391 kfMo != 5 && // mother is b-quark, don't store fragments
392 kfMo != 4 && // mother is c-quark, don't store fragments
393 kf != 92) // don't store string
394 {
fe4da5cc 395//
fff02fee 396// Semi-stable or de-selected: diselect decay products:
fe4da5cc 397//
5be1fe76 398//
47fc6bd5 399 if (pSelected[i] == -1 || fDecayer->GetLifetime(kf) > fMaxLifeTime)
fff02fee 400 {
401 Int_t ipF = iparticle->GetFirstDaughter();
402 Int_t ipL = iparticle->GetLastDaughter();
403 if (ipF > 0) for (j = ipF-1; j < ipL; j++) pSelected[j] = -1;
404 }
405// printf("\n particle (decay) %d %d %d", i, pSelected[i], kf);
406 pSelected[i] = (pSelected[i] == -1) ? 0 : 1;
407 }
408 }
409 if (pSelected[i] == -1) pSelected[i] = 0;
410 if (!pSelected[i]) continue;
411 nc++;
412// Decision on tracking
413 trackIt[i] = 0;
414//
415// Track final state particle
416 if (ks == 1) trackIt[i] = 1;
417// Track semi-stable particles
8cdfd303 418 if ((ks ==1) || (fDecayer->GetLifetime(kf) > fMaxLifeTime)) trackIt[i] = 1;
fff02fee 419// Track particles selected by process if undecayed.
420 if (fForceDecay == kNoDecay) {
421 if (ParentSelected(kf)) trackIt[i] = 1;
422 } else {
423 if (ParentSelected(kf)) trackIt[i] = 0;
424 }
425//
426//
427
428 } // particle selection loop
429 if (nc > -1) {
430 for (i = 0; i<np-1; i++) {
431 if (!pSelected[i]) continue;
432 TParticle * iparticle = (TParticle *) fParticles->At(i);
433 kf = CheckPDGCode(iparticle->GetPdgCode());
a0b2b296 434 p[0] = iparticle->Px();
435 p[1] = iparticle->Py();
436 p[2] = iparticle->Pz();
437 origin[0] = fOrigin[0]+iparticle->Vx()/10.;
438 origin[1] = fOrigin[1]+iparticle->Vy()/10.;
439 origin[2] = fOrigin[2]+iparticle->Vz()/10.;
440 Float_t tof = kconv*iparticle->T();
441 Int_t ipa = iparticle->GetFirstMother()-1;
fff02fee 442 Int_t iparent = (ipa > -1) ? pParent[ipa] : -1;
a99cf51f 443 SetTrack(fTrackIt*trackIt[i] ,
fff02fee 444 iparent, kf, p, origin, polar, tof, kPPrimary, nt, 1.);
445 pParent[i] = nt;
a99cf51f 446 KeepTrack(nt);
fff02fee 447 } // SetTrack loop
448 }
449 } else {
450 nc = GenerateMB();
5be1fe76 451 } // mb ?
fff02fee 452
fe4da5cc 453 if (nc > 0) {
5be1fe76 454 jev+=nc;
5ddeb374 455 if (jev >= fNpart || fNpart == -1) {
fe4da5cc 456 fKineBias=Float_t(fNpart)/Float_t(fTrials);
23211d3e 457 printf("\n Trials: %i %i %i\n",fTrials, fNpart, jev);
fd8fb861 458 MakeHeader();
fe4da5cc 459 break;
460 }
461 }
462 } // event loop
a99cf51f 463 SetHighWaterMark(nt);
fe4da5cc 464// adjust weight due to kinematic selection
465 AdjustWeights();
466// get cross-section
467 fXsection=fPythia->GetPARI(1);
468}
469
fff02fee 470Int_t AliGenPythia::GenerateMB()
fe4da5cc 471{
fff02fee 472 Int_t i, kf, nt, iparent;
473 Int_t nc = 0;
474 Float_t p[3];
475 Float_t polar[3] = {0,0,0};
476 Float_t origin[3] = {0,0,0};
fff02fee 477// converts from mm/c to s
478 const Float_t kconv=0.001/2.999792458e8;
4451ef92 479
fff02fee 480 Int_t np = fParticles->GetEntriesFast();
481 Int_t* pParent = new Int_t[np];
482 for (i=0; i< np-1; i++) pParent[i] = -1;
988b118b 483 if (fProcess == kPyJets) {
484 TParticle* jet1 = (TParticle *) fParticles->At(6);
485 TParticle* jet2 = (TParticle *) fParticles->At(7);
486 if (!CheckTrigger(jet1, jet2)) return 0;
487 }
488
fff02fee 489 for (i = 0; i<np-1; i++) {
490 Int_t trackIt = 0;
491 TParticle * iparticle = (TParticle *) fParticles->At(i);
492 kf = CheckPDGCode(iparticle->GetPdgCode());
493 Int_t ks = iparticle->GetStatusCode();
494 Int_t km = iparticle->GetFirstMother();
495// printf("\n Particle: %d %d %d", i, kf, ks);
496
497 if ((ks == 1 && kf!=0 && KinematicSelection(iparticle, 0)) ||
498 (ks != 1) ||
499 (fProcess == kPyJets && ks == 21 && km == 0 && i>1)) {
500 nc++;
501 if (ks == 1) trackIt = 1;
502 Int_t ipa = iparticle->GetFirstMother()-1;
fe4da5cc 503
fff02fee 504 iparent = (ipa > -1) ? pParent[ipa] : -1;
fe4da5cc 505
506//
fff02fee 507// store track information
a0b2b296 508 p[0] = iparticle->Px();
509 p[1] = iparticle->Py();
510 p[2] = iparticle->Pz();
511 origin[0] = fOrigin[0]+iparticle->Vx()/10.;
512 origin[1] = fOrigin[1]+iparticle->Vy()/10.;
513 origin[2] = fOrigin[2]+iparticle->Vz()/10.;
fff02fee 514 Float_t tof=kconv*iparticle->T();
a99cf51f 515 SetTrack(fTrackIt*trackIt, iparent, kf, p, origin, polar,
a0b2b296 516 tof, kPPrimary, nt);
a99cf51f 517 KeepTrack(nt);
fff02fee 518 pParent[i] = nt;
519 } // select particle
520 } // particle loop
521
522 if (pParent) delete[] pParent;
fe4da5cc 523
fff02fee 524 printf("\n I've put %i particles on the stack \n",nc);
fff02fee 525 return nc;
526}
fe4da5cc 527
fe4da5cc 528
fff02fee 529void AliGenPythia::FinishRun()
530{
531// Print x-section summary
532 fPythia->Pystat(1);
fe4da5cc 533}
fff02fee 534
fe4da5cc 535void AliGenPythia::AdjustWeights()
536{
5ddeb374 537// Adjust the weights after generation of all events
538//
5ddeb374 539 TParticle *part;
fe4da5cc 540 Int_t ntrack=gAlice->GetNtrack();
541 for (Int_t i=0; i<ntrack; i++) {
2ab0c725 542 part= gAlice->Particle(i);
5ddeb374 543 part->SetWeight(part->GetWeight()*fKineBias);
fe4da5cc 544 }
545}
811826d8 546
547void AliGenPythia::SetNuclei(Int_t a1, Int_t a2)
548{
549// Treat protons as inside nuclei with mass numbers a1 and a2
550 fNucA1 = a1;
551 fNucA2 = a2;
552}
fff02fee 553
554
555void AliGenPythia::MakeHeader()
556{
557// Builds the event header, to be called after each event
558 AliGenEventHeader* header = new AliGenPythiaEventHeader("Pythia");
c5d36e84 559 ((AliGenPythiaEventHeader*) header)->SetProcessType(fPythia->GetMSTI(1));
fd8fb861 560 ((AliGenPythiaEventHeader*) header)->SetTrials(fTrials);
c5d36e84 561 header->SetPrimaryVertex(fEventVertex);
562 gAlice->SetGenEventHeader(header);
fff02fee 563}
811826d8 564
988b118b 565
566Bool_t AliGenPythia::CheckTrigger(TParticle* jet1, TParticle* jet2)
567{
568// Check the kinematic trigger condition
569//
570 Double_t eta1 = jet1->Eta();
571 Double_t eta2 = jet2->Eta();
572 Double_t phi1 = jet1->Phi();
573 Double_t phi2 = jet2->Phi();
574 Bool_t triggered = kFALSE;
575 //Check eta range first...
576 if ((eta1 < fEtaMaxJet && eta1 > fEtaMinJet) ||
577 (eta2 < fEtaMaxJet && eta2 > fEtaMinJet))
578 {
579 //Eta is okay, now check phi range
580 if ((phi1 < fPhiMaxJet && phi1 > fPhiMinJet) ||
581 (phi2 < fPhiMaxJet && phi2 > fPhiMinJet))
582 {
583 triggered = kTRUE;
584 }
585 }
586 return triggered;
587}
811826d8 588
f87cfe57 589AliGenPythia& AliGenPythia::operator=(const AliGenPythia& rhs)
590{
591// Assignment operator
592 return *this;
593}
fe4da5cc 594
595
811826d8 596
a8a6107b 597#ifdef never
18edb254 598void AliGenPythia::Streamer(TBuffer &R__b)
599{
600 // Stream an object of class AliGenPythia.
601
602 if (R__b.IsReading()) {
603 Version_t R__v = R__b.ReadVersion(); if (R__v) { }
604 AliGenerator::Streamer(R__b);
605 R__b >> (Int_t&)fProcess;
606 R__b >> (Int_t&)fStrucFunc;
607 R__b >> (Int_t&)fForceDecay;
608 R__b >> fEnergyCMS;
609 R__b >> fKineBias;
610 R__b >> fTrials;
611 fParentSelect.Streamer(R__b);
612 fChildSelect.Streamer(R__b);
613 R__b >> fXsection;
614// (AliPythia::Instance())->Streamer(R__b);
615 R__b >> fPtHardMin;
616 R__b >> fPtHardMax;
617// if (fDecayer) fDecayer->Streamer(R__b);
618 } else {
619 R__b.WriteVersion(AliGenPythia::IsA());
620 AliGenerator::Streamer(R__b);
621 R__b << (Int_t)fProcess;
622 R__b << (Int_t)fStrucFunc;
623 R__b << (Int_t)fForceDecay;
624 R__b << fEnergyCMS;
625 R__b << fKineBias;
626 R__b << fTrials;
627 fParentSelect.Streamer(R__b);
628 fChildSelect.Streamer(R__b);
629 R__b << fXsection;
630// R__b << fPythia;
631 R__b << fPtHardMin;
632 R__b << fPtHardMax;
633 // fDecayer->Streamer(R__b);
634 }
635}
a8a6107b 636#endif
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