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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 | $Log$ | |
47fc6bd5 | 18 | Revision 1.33 2001/10/21 18:35:56 hristov |
19 | Several pointers were set to zero in the default constructors to avoid memory management problems | |
20 | ||
2685bf00 | 21 | Revision 1.32 2001/07/27 17:09:36 morsch |
22 | Use local SetTrack, KeepTrack and SetHighWaterMark methods | |
23 | to delegate either to local stack or to stack owned by AliRun. | |
24 | (Piotr Skowronski, A.M.) | |
25 | ||
a99cf51f | 26 | Revision 1.31 2001/07/13 10:58:54 morsch |
27 | - Some coded moved to AliGenMC | |
28 | - Improved handling of secondary vertices. | |
29 | ||
fff02fee | 30 | Revision 1.30 2001/06/15 07:55:04 morsch |
31 | Put only first generation decay products on the stack. | |
32 | ||
6ba00c52 | 33 | Revision 1.29 2001/03/27 10:58:41 morsch |
34 | Initialize decayer before generation. Important if run inside cocktail. | |
35 | ||
771bbe45 | 36 | Revision 1.28 2001/03/09 13:01:41 morsch |
37 | - enum constants for paramterisation type (particle family) moved to AliGen*lib.h | |
38 | - use AliGenGSIlib::kUpsilon, AliGenPHOSlib::kEtaPrime to access the constants | |
39 | ||
34f60c01 | 40 | Revision 1.27 2001/02/02 15:21:10 morsch |
41 | Set high water mark after last particle. | |
42 | Use Vertex() method for Vertex. | |
43 | ||
d9ea0e3b | 44 | Revision 1.26 2000/12/21 16:24:06 morsch |
45 | Coding convention clean-up | |
46 | ||
675e9664 | 47 | Revision 1.25 2000/11/30 07:12:50 alibrary |
48 | Introducing new Rndm and QA classes | |
49 | ||
65fb704d | 50 | Revision 1.24 2000/10/18 19:11:27 hristov |
51 | Division by zero fixed | |
52 | ||
919c2096 | 53 | Revision 1.23 2000/10/02 21:28:06 fca |
54 | Removal of useless dependecies via forward declarations | |
55 | ||
94de3818 | 56 | Revision 1.22 2000/09/12 14:14:55 morsch |
57 | Call fDecayer->ForceDecay() at the beginning of Generate(). | |
58 | ||
00d6ce7d | 59 | Revision 1.21 2000/09/08 15:39:01 morsch |
60 | Handle the case fForceDecay=all during the generation, i.e. select all secondaries. | |
61 | ||
5ab0acc9 | 62 | Revision 1.20 2000/09/06 14:35:44 morsch |
63 | Use AliDecayerPythia for particle decays. | |
64 | ||
fa480368 | 65 | Revision 1.19 2000/07/11 18:24:56 fca |
66 | Coding convention corrections + few minor bug fixes | |
67 | ||
aee8290b | 68 | Revision 1.18 2000/06/29 21:08:27 morsch |
69 | All paramatrisation libraries derive from the pure virtual base class AliGenLib. | |
70 | This allows to pass a pointer to a library directly to AliGenParam and avoids the | |
71 | use of function pointers in Config.C. | |
72 | ||
b22ee262 | 73 | Revision 1.17 2000/06/09 20:33:30 morsch |
74 | All coding rule violations except RS3 corrected | |
75 | ||
f87cfe57 | 76 | Revision 1.16 2000/05/02 07:51:31 morsch |
77 | - Control precision of pT sampling TF1::SetNpx(..) | |
78 | - Correct initialisation of child-cuts in all constructors. | |
79 | - Most coding rule violations corrected. | |
80 | ||
749070b6 | 81 | Revision 1.15 2000/04/03 15:42:12 morsch |
82 | Cuts on primary particles are separated from those on the decay products. Methods | |
83 | SetChildMomentumRange, SetChildPtRange, SetChildPhiRange, SetChildThetaRange added. | |
84 | ||
cc5d764c | 85 | Revision 1.14 1999/11/09 07:38:48 fca |
86 | Changes for compatibility with version 2.23 of ROOT | |
87 | ||
084c1b4a | 88 | Revision 1.13 1999/11/04 11:30:31 fca |
89 | Correct the logics for SetForceDecay | |
90 | ||
28337bc1 | 91 | Revision 1.12 1999/11/03 17:43:20 fca |
92 | New version from G.Martinez & A.Morsch | |
93 | ||
886b6f73 | 94 | Revision 1.11 1999/09/29 09:24:14 fca |
95 | Introduction of the Copyright and cvs Log | |
96 | ||
4c039060 | 97 | */ |
98 | ||
fe4da5cc | 99 | #include "AliGenParam.h" |
fa480368 | 100 | #include "AliDecayerPythia.h" |
fe4da5cc | 101 | #include "AliGenMUONlib.h" |
102 | #include "AliRun.h" | |
1578254f | 103 | #include <TParticle.h> |
fa480368 | 104 | #include <TParticlePDG.h> |
105 | #include <TDatabasePDG.h> | |
106 | #include <TLorentzVector.h> | |
107 | ||
f87cfe57 | 108 | #include <TF1.h> |
fe4da5cc | 109 | |
110 | ClassImp(AliGenParam) | |
111 | ||
112 | //------------------------------------------------------------ | |
113 | ||
114 | //Begin_Html | |
115 | /* | |
1439f98e | 116 | <img src="picts/AliGenParam.gif"> |
fe4da5cc | 117 | */ |
118 | //End_Html | |
119 | ||
120 | //____________________________________________________________ | |
121 | //____________________________________________________________ | |
122 | AliGenParam::AliGenParam() | |
fe4da5cc | 123 | { |
b22ee262 | 124 | // Deafault constructor |
125 | fPtPara = 0; | |
126 | fYPara = 0; | |
34f60c01 | 127 | fParam = 0; |
128 | fAnalog = kAnalog; | |
b22ee262 | 129 | SetDeltaPt(); |
675e9664 | 130 | // |
131 | // Set random number generator | |
132 | sRandom = fRandom; | |
2685bf00 | 133 | fDecayer = 0; |
b22ee262 | 134 | } |
135 | ||
fff02fee | 136 | AliGenParam::AliGenParam(Int_t npart, AliGenLib * Library, Int_t param, char* tname):AliGenMC(npart) |
b22ee262 | 137 | { |
138 | // Constructor using number of particles parameterisation id and library | |
139 | ||
140 | fPtParaFunc = Library->GetPt(param, tname); | |
141 | fYParaFunc = Library->GetY (param, tname); | |
142 | fIpParaFunc = Library->GetIp(param, tname); | |
143 | ||
144 | fPtPara = 0; | |
145 | fYPara = 0; | |
146 | fParam = param; | |
34f60c01 | 147 | fAnalog = kAnalog; |
b22ee262 | 148 | SetForceDecay(); |
b22ee262 | 149 | SetDeltaPt(); |
675e9664 | 150 | // |
151 | // Set random number generator | |
152 | sRandom = fRandom; | |
fe4da5cc | 153 | } |
154 | ||
155 | //____________________________________________________________ | |
886b6f73 | 156 | |
fff02fee | 157 | AliGenParam::AliGenParam(Int_t npart, Int_t param, char* tname):AliGenMC(npart) |
fe4da5cc | 158 | { |
b22ee262 | 159 | // Constructor using parameterisation id and number of particles |
160 | // | |
675e9664 | 161 | AliGenLib* pLibrary = new AliGenMUONlib(); |
b22ee262 | 162 | |
675e9664 | 163 | fPtParaFunc = pLibrary->GetPt(param, tname); |
164 | fYParaFunc = pLibrary->GetY (param, tname); | |
165 | fIpParaFunc = pLibrary->GetIp(param, tname); | |
b22ee262 | 166 | |
167 | fPtPara = 0; | |
168 | fYPara = 0; | |
169 | fParam = param; | |
34f60c01 | 170 | fAnalog = kAnalog; |
b22ee262 | 171 | fChildSelect.Set(5); |
172 | for (Int_t i=0; i<5; i++) fChildSelect[i]=0; | |
173 | SetForceDecay(); | |
174 | SetCutOnChild(); | |
175 | SetChildMomentumRange(); | |
176 | SetChildPtRange(); | |
177 | SetChildPhiRange(); | |
178 | SetChildThetaRange(); | |
179 | SetDeltaPt(); | |
fe4da5cc | 180 | } |
181 | ||
34f60c01 | 182 | AliGenParam::AliGenParam(Int_t npart, Int_t param, |
886b6f73 | 183 | Double_t (*PtPara) (Double_t*, Double_t*), |
184 | Double_t (*YPara ) (Double_t* ,Double_t*), | |
65fb704d | 185 | Int_t (*IpPara) (TRandom *)) |
fff02fee | 186 | :AliGenMC(npart) |
886b6f73 | 187 | { |
749070b6 | 188 | // Constructor |
28337bc1 | 189 | // Gines Martinez 1/10/99 |
886b6f73 | 190 | fPtParaFunc = PtPara; |
191 | fYParaFunc = YPara; | |
192 | fIpParaFunc = IpPara; | |
28337bc1 | 193 | // |
886b6f73 | 194 | fPtPara = 0; |
195 | fYPara = 0; | |
196 | fParam = param; | |
34f60c01 | 197 | fAnalog = kAnalog; |
886b6f73 | 198 | fChildSelect.Set(5); |
199 | for (Int_t i=0; i<5; i++) fChildSelect[i]=0; | |
200 | SetForceDecay(); | |
201 | SetCutOnChild(); | |
749070b6 | 202 | SetChildMomentumRange(); |
203 | SetChildPtRange(); | |
204 | SetChildPhiRange(); | |
205 | SetChildThetaRange(); | |
206 | SetDeltaPt(); | |
886b6f73 | 207 | } |
208 | ||
f87cfe57 | 209 | |
210 | AliGenParam::AliGenParam(const AliGenParam & Paramd) | |
211 | { | |
212 | // copy constructor | |
213 | } | |
214 | ||
fe4da5cc | 215 | //____________________________________________________________ |
216 | AliGenParam::~AliGenParam() | |
217 | { | |
749070b6 | 218 | // Destructor |
fe4da5cc | 219 | delete fPtPara; |
220 | delete fYPara; | |
221 | } | |
222 | ||
223 | //____________________________________________________________ | |
224 | void AliGenParam::Init() | |
225 | { | |
749070b6 | 226 | // Initialisation |
fa480368 | 227 | |
228 | fDecayer = new AliDecayerPythia(); | |
fe4da5cc | 229 | //Begin_Html |
230 | /* | |
1439f98e | 231 | <img src="picts/AliGenParam.gif"> |
fe4da5cc | 232 | */ |
233 | //End_Html | |
234 | ||
749070b6 | 235 | fPtPara = new TF1("Pt-Parametrization",fPtParaFunc,fPtMin,fPtMax,0); |
236 | // Set representation precision to 10 MeV | |
237 | Int_t npx= Int_t((fPtMax-fPtMin)/fDeltaPt); | |
238 | ||
239 | fPtPara->SetNpx(npx); | |
240 | ||
241 | fYPara = new TF1("Y -Parametrization",fYParaFunc,fYMin,fYMax,0); | |
242 | TF1* ptPara = new TF1("Pt-Parametrization",fPtParaFunc,0,15,0); | |
243 | TF1* yPara = new TF1("Y -Parametrization",fYParaFunc,-6,6,0); | |
b7601ac4 | 244 | |
fe4da5cc | 245 | // |
246 | // dN/dy| y=0 | |
749070b6 | 247 | Double_t y1=0; |
248 | Double_t y2=0; | |
249 | ||
250 | fdNdy0=fYParaFunc(&y1,&y2); | |
fe4da5cc | 251 | // |
252 | // Integral over generation region | |
749070b6 | 253 | Float_t intYS = yPara ->Integral(fYMin, fYMax); |
254 | Float_t intPt0 = ptPara->Integral(0,15); | |
255 | Float_t intPtS = ptPara->Integral(fPtMin,fPtMax); | |
256 | Float_t phiWgt=(fPhiMax-fPhiMin)/2./TMath::Pi(); | |
34f60c01 | 257 | if (fAnalog == kAnalog) { |
749070b6 | 258 | fYWgt = intYS/fdNdy0; |
259 | fPtWgt = intPtS/intPt0; | |
260 | fParentWeight = fYWgt*fPtWgt*phiWgt/fNpart; | |
261 | } else { | |
262 | fYWgt = intYS/fdNdy0; | |
263 | fPtWgt = (fPtMax-fPtMin)/intPt0; | |
264 | fParentWeight = fYWgt*fPtWgt*phiWgt/fNpart; | |
265 | } | |
fe4da5cc | 266 | // |
267 | // particle decay related initialization | |
00d6ce7d | 268 | fDecayer->SetForceDecay(fForceDecay); |
fa480368 | 269 | fDecayer->Init(); |
00d6ce7d | 270 | |
fe4da5cc | 271 | // |
fff02fee | 272 | AliGenMC::Init(); |
fe4da5cc | 273 | } |
274 | ||
275 | //____________________________________________________________ | |
276 | void AliGenParam::Generate() | |
277 | { | |
28337bc1 | 278 | // |
279 | // Generate 'npart' of light and heavy mesons (J/Psi, upsilon or phi, Pion, | |
280 | // Kaons, Etas, Omegas) and Baryons (proton, antiprotons, neutrons and | |
281 | // antineutrons in the the desired theta, phi and momentum windows; | |
282 | // Gaussian smearing on the vertex is done if selected. | |
cc5d764c | 283 | // The decay of heavy mesons is done using lujet, |
284 | // and the childern particle are tracked by GEANT | |
285 | // However, light mesons are directly tracked by GEANT | |
286 | // setting fForceDecay = nodecay (SetForceDecay(nodecay)) | |
28337bc1 | 287 | // |
771bbe45 | 288 | // |
289 | // Reinitialize decayer | |
290 | fDecayer->Init(); | |
291 | // | |
28337bc1 | 292 | Float_t polar[3]= {0,0,0}; // Polarisation of the parent particle (for GEANT tracking) |
293 | Float_t origin0[3]; // Origin of the generated parent particle (for GEANT tracking) | |
294 | Float_t pt, pl, ptot; // Transverse, logitudinal and total momenta of the parent particle | |
295 | Float_t phi, theta; // Phi and theta spherical angles of the parent particle momentum | |
296 | Float_t p[3], pc[3], | |
fff02fee | 297 | och[3]; // Momentum, polarisation and origin of the children particles from lujet |
fe4da5cc | 298 | Float_t ty, xmt; |
fff02fee | 299 | Int_t nt, i, j; |
fe4da5cc | 300 | Float_t wgtp, wgtch; |
301 | Double_t dummy; | |
09fd3ea2 | 302 | static TClonesArray *particles; |
fe4da5cc | 303 | // |
fff02fee | 304 | if(!particles) particles = new TClonesArray("TParticle",1000); |
fa480368 | 305 | |
675e9664 | 306 | static TDatabasePDG *pDataBase = new TDatabasePDG(); |
307 | if(!pDataBase) pDataBase = new TDatabasePDG(); | |
fe4da5cc | 308 | // |
309 | Float_t random[6]; | |
28337bc1 | 310 | |
311 | // Calculating vertex position per event | |
fe4da5cc | 312 | for (j=0;j<3;j++) origin0[j]=fOrigin[j]; |
aee8290b | 313 | if(fVertexSmear==kPerEvent) { |
d9ea0e3b | 314 | Vertex(); |
315 | for (j=0;j<3;j++) origin0[j]=fVertex[j]; | |
fe4da5cc | 316 | } |
d9ea0e3b | 317 | |
21aaa175 | 318 | Int_t ipa=0; |
fff02fee | 319 | |
28337bc1 | 320 | // Generating fNpart particles |
21aaa175 | 321 | while (ipa<fNpart) { |
cc5d764c | 322 | while(1) { |
fe4da5cc | 323 | // |
324 | // particle type | |
65fb704d | 325 | Int_t iPart = fIpParaFunc(fRandom); |
fa480368 | 326 | fChildWeight=(fDecayer->GetPartialBranchingRatio(iPart))*fParentWeight; |
675e9664 | 327 | TParticlePDG *particle = pDataBase->GetParticle(iPart); |
fa480368 | 328 | Float_t am = particle->Mass(); |
329 | ||
65fb704d | 330 | Rndm(random,2); |
fe4da5cc | 331 | // |
332 | // phi | |
333 | phi=fPhiMin+random[0]*(fPhiMax-fPhiMin); | |
334 | // | |
335 | // y | |
336 | ty=Float_t(TMath::TanH(fYPara->GetRandom())); | |
337 | // | |
338 | // pT | |
34f60c01 | 339 | if (fAnalog == kAnalog) { |
fe4da5cc | 340 | pt=fPtPara->GetRandom(); |
341 | wgtp=fParentWeight; | |
342 | wgtch=fChildWeight; | |
343 | } else { | |
344 | pt=fPtMin+random[1]*(fPtMax-fPtMin); | |
345 | Double_t ptd=pt; | |
346 | wgtp=fParentWeight*fPtParaFunc(& ptd, &dummy); | |
347 | wgtch=fChildWeight*fPtParaFunc(& ptd, &dummy); | |
348 | } | |
349 | xmt=sqrt(pt*pt+am*am); | |
47fc6bd5 | 350 | if (TMath::Abs(ty)==1.) ty=0.; |
fe4da5cc | 351 | pl=xmt*ty/sqrt(1.-ty*ty); |
352 | theta=TMath::ATan2(pt,pl); | |
cc5d764c | 353 | // Cut on theta |
fe4da5cc | 354 | if(theta<fThetaMin || theta>fThetaMax) continue; |
355 | ptot=TMath::Sqrt(pt*pt+pl*pl); | |
cc5d764c | 356 | // Cut on momentum |
fe4da5cc | 357 | if(ptot<fPMin || ptot>fPMax) continue; |
fff02fee | 358 | // |
fe4da5cc | 359 | p[0]=pt*TMath::Cos(phi); |
360 | p[1]=pt*TMath::Sin(phi); | |
361 | p[2]=pl; | |
aee8290b | 362 | if(fVertexSmear==kPerTrack) { |
65fb704d | 363 | Rndm(random,6); |
fe4da5cc | 364 | for (j=0;j<3;j++) { |
365 | origin0[j]= | |
366 | fOrigin[j]+fOsigma[j]*TMath::Cos(2*random[2*j]*TMath::Pi())* | |
367 | TMath::Sqrt(-2*TMath::Log(random[2*j+1])); | |
368 | } | |
369 | } | |
28337bc1 | 370 | |
371 | // Looking at fForceDecay : | |
cc5d764c | 372 | // if fForceDecay != none Primary particle decays using |
373 | // AliPythia and children are tracked by GEANT | |
28337bc1 | 374 | // |
cc5d764c | 375 | // if fForceDecay == none Primary particle is tracked by GEANT |
376 | // (In the latest, make sure that GEANT actually does all the decays you want) | |
fe4da5cc | 377 | // |
fff02fee | 378 | |
34f60c01 | 379 | if (fForceDecay != kNoDecay) { |
28337bc1 | 380 | // Using lujet to decay particle |
886b6f73 | 381 | Float_t energy=TMath::Sqrt(ptot*ptot+am*am); |
fa480368 | 382 | TLorentzVector pmom(p[0], p[1], p[2], energy); |
383 | fDecayer->Decay(iPart,&pmom); | |
fe4da5cc | 384 | // |
cc5d764c | 385 | // select decay particles |
fa480368 | 386 | Int_t np=fDecayer->ImportParticles(particles); |
886b6f73 | 387 | Int_t ncsel=0; |
fff02fee | 388 | Int_t* pFlag = new Int_t[np]; |
389 | Int_t* pParent = new Int_t[np]; | |
390 | Int_t* pSelected = new Int_t[np]; | |
391 | Int_t* trackIt = new Int_t[np]; | |
392 | ||
393 | for (i=0; i<np; i++) { | |
394 | pFlag[i] = 0; | |
395 | pSelected[i] = 0; | |
396 | pParent[i] = -1; | |
397 | } | |
398 | ||
6ba00c52 | 399 | if (np >1) { |
400 | TParticle* iparticle = (TParticle *) particles->At(0); | |
fff02fee | 401 | Int_t ipF, ipL; |
402 | for (i = 1; i<np ; i++) { | |
403 | trackIt[i] = 1; | |
6ba00c52 | 404 | iparticle = (TParticle *) particles->At(i); |
405 | Int_t kf = iparticle->GetPdgCode(); | |
fff02fee | 406 | Int_t ks = iparticle->GetStatusCode(); |
407 | // flagged particle | |
408 | ||
409 | if (pFlag[i] == 1) { | |
fff02fee | 410 | ipF = iparticle->GetFirstDaughter(); |
411 | ipL = iparticle->GetLastDaughter(); | |
412 | if (ipF > 0) for (j=ipF-1; j<ipL; j++) pFlag[j]=1; | |
413 | continue; | |
414 | } | |
415 | ||
416 | // flag decay products of particles with long life-time (c tau > .3 mum) | |
417 | ||
418 | if (ks != 1) { | |
419 | TParticlePDG *particle = pDataBase->GetParticle(kf); | |
420 | ||
421 | Double_t lifeTime = fDecayer->GetLifetime(kf); | |
422 | Double_t mass = particle->Mass(); | |
423 | Double_t width = particle->Width(); | |
47fc6bd5 | 424 | if (lifeTime > (Double_t) fMaxLifeTime) { |
fff02fee | 425 | ipF = iparticle->GetFirstDaughter(); |
426 | ipL = iparticle->GetLastDaughter(); | |
427 | if (ipF > 0) for (j=ipF-1; j<ipL; j++) pFlag[j]=1; | |
428 | } else{ | |
429 | trackIt[i] = 0; | |
430 | pSelected[i] = 1; | |
431 | } | |
432 | } // ks==1 ? | |
fe4da5cc | 433 | // |
434 | // children | |
47fc6bd5 | 435 | |
fff02fee | 436 | if (ChildSelected(TMath::Abs(kf)) || fForceDecay == kAll && trackIt[i]) |
6ba00c52 | 437 | { |
6ba00c52 | 438 | if (fCutOnChild) { |
fff02fee | 439 | pc[0]=iparticle->Px(); |
440 | pc[1]=iparticle->Py(); | |
441 | pc[2]=iparticle->Pz(); | |
442 | Bool_t childok = KinematicSelection(iparticle, 1); | |
443 | if(childok) { | |
444 | pSelected[i] = 1; | |
6ba00c52 | 445 | ncsel++; |
446 | } else { | |
447 | ncsel=-1; | |
448 | break; | |
449 | } // child kine cuts | |
450 | } else { | |
fff02fee | 451 | pSelected[i] = 1; |
886b6f73 | 452 | ncsel++; |
6ba00c52 | 453 | } // if child selection |
454 | } // select muon | |
455 | } // decay particle loop | |
456 | } // if decay products | |
457 | ||
886b6f73 | 458 | Int_t iparent; |
459 | if ((fCutOnChild && ncsel >0) || !fCutOnChild){ | |
460 | ipa++; | |
21aaa175 | 461 | // |
fff02fee | 462 | // Parent |
a99cf51f | 463 | SetTrack(0, -1, iPart, p, origin0, polar, 0, kPPrimary, nt, wgtp); |
fff02fee | 464 | pParent[0] = nt; |
a99cf51f | 465 | KeepTrack(nt); |
fff02fee | 466 | // |
467 | // Decay Products | |
468 | // | |
469 | for (i = 1; i < np; i++) { | |
470 | if (pSelected[i]) { | |
471 | TParticle* iparticle = (TParticle *) particles->At(i); | |
472 | Int_t kf = iparticle->GetPdgCode(); | |
473 | Int_t ipa = iparticle->GetFirstMother()-1; | |
474 | ||
475 | och[0] = origin0[0]+iparticle->Vx()/10; | |
476 | och[1] = origin0[1]+iparticle->Vy()/10; | |
477 | och[2] = origin0[2]+iparticle->Vz()/10; | |
478 | pc[0] = iparticle->Px(); | |
479 | pc[1] = iparticle->Py(); | |
480 | pc[2] = iparticle->Pz(); | |
481 | ||
482 | if (ipa > -1) { | |
483 | iparent = pParent[ipa]; | |
484 | } else { | |
485 | iparent = -1; | |
486 | } | |
a99cf51f | 487 | SetTrack(fTrackIt*trackIt[i], iparent, kf, |
fff02fee | 488 | pc, och, polar, |
489 | 0, kPDecay, nt, wgtch); | |
490 | pParent[i] = nt; | |
a99cf51f | 491 | KeepTrack(nt); |
fff02fee | 492 | } |
886b6f73 | 493 | } |
28337bc1 | 494 | } // Decays by Lujet |
fff02fee | 495 | |
496 | if (pFlag) delete[] pFlag; | |
497 | if (pParent) delete[] pParent; | |
498 | if (pSelected) delete[] pSelected; | |
499 | if (trackIt) delete[] trackIt; | |
21aaa175 | 500 | } // kinematic selection |
28337bc1 | 501 | else // nodecay option, so parent will be tracked by GEANT (pions, kaons, eta, omegas, baryons) |
502 | { | |
503 | gAlice-> | |
65fb704d | 504 | SetTrack(fTrackIt,-1,iPart,p,origin0,polar,0,kPPrimary,nt,wgtp); |
28337bc1 | 505 | ipa++; |
506 | } | |
fe4da5cc | 507 | break; |
21aaa175 | 508 | } // while |
fe4da5cc | 509 | } // event loop |
a99cf51f | 510 | SetHighWaterMark(nt); |
fe4da5cc | 511 | } |
512 | ||
f87cfe57 | 513 | AliGenParam& AliGenParam::operator=(const AliGenParam& rhs) |
514 | { | |
515 | // Assignment operator | |
516 | return *this; | |
517 | } | |
518 | ||
fe4da5cc | 519 | |
520 |