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5d12ce38 | 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 | /* $Id$ */ | |
17 | ||
d0d4a6b3 | 18 | // This class is extracted from the AliRun class |
19 | // and contains all the MC-related functionality | |
20 | // The number of dependencies has to be reduced... | |
21 | // Author: F.Carminati | |
22 | // Federico.Carminati@cern.ch | |
23 | ||
c75cfb51 | 24 | #include <RVersion.h> |
5d12ce38 | 25 | #include <TBrowser.h> |
26 | #include <TStopwatch.h> | |
27 | #include <TSystem.h> | |
28 | #include <TVirtualMC.h> | |
4a9de4af | 29 | #include <TGeoManager.h> |
0561efeb | 30 | |
b60e0f5e | 31 | |
21bf7095 | 32 | #include "AliLog.h" |
5d12ce38 | 33 | #include "AliDetector.h" |
34 | #include "AliGenerator.h" | |
35 | #include "AliHeader.h" | |
36 | #include "AliLego.h" | |
37 | #include "AliMC.h" | |
38 | #include "AliMCQA.h" | |
39 | #include "AliRun.h" | |
40 | #include "AliStack.h" | |
0561efeb | 41 | #include "AliMagF.h" |
5d12ce38 | 42 | #include "AliTrackReference.h" |
43 | ||
44 | ||
45 | ClassImp(AliMC) | |
46 | ||
47 | //_______________________________________________________________________ | |
48 | AliMC::AliMC() : | |
49 | fGenerator(0), | |
50 | fEventEnergy(0), | |
51 | fSummEnergy(0), | |
52 | fSum2Energy(0), | |
53 | fTrRmax(1.e10), | |
54 | fTrZmax(1.e10), | |
90e48c0c | 55 | fRDecayMax(1.e10), |
38ca2ad6 | 56 | fRDecayMin(-1.), |
90e48c0c | 57 | fDecayPdg(0), |
5d12ce38 | 58 | fImedia(0), |
59 | fTransParName("\0"), | |
60 | fMCQA(0), | |
61 | fHitLists(0), | |
62 | fTrackReferences(0) | |
63 | ||
64 | { | |
d0d4a6b3 | 65 | //default constructor |
0561efeb | 66 | DecayLimits(); |
5d12ce38 | 67 | } |
68 | ||
69 | //_______________________________________________________________________ | |
70 | AliMC::AliMC(const char *name, const char *title) : | |
71 | TVirtualMCApplication(name, title), | |
72 | fGenerator(0), | |
73 | fEventEnergy(0), | |
74 | fSummEnergy(0), | |
75 | fSum2Energy(0), | |
76 | fTrRmax(1.e10), | |
77 | fTrZmax(1.e10), | |
90e48c0c | 78 | fRDecayMax(1.e10), |
38ca2ad6 | 79 | fRDecayMin(-1.), |
90e48c0c | 80 | fDecayPdg(0), |
5d12ce38 | 81 | fImedia(new TArrayI(1000)), |
82 | fTransParName("\0"), | |
83 | fMCQA(0), | |
84 | fHitLists(new TList()), | |
85 | fTrackReferences(new TClonesArray("AliTrackReference", 100)) | |
86 | { | |
d0d4a6b3 | 87 | //constructor |
5d12ce38 | 88 | // Set transport parameters |
89 | SetTransPar(); | |
0561efeb | 90 | DecayLimits(); |
5d12ce38 | 91 | // Prepare the tracking medium lists |
92 | for(Int_t i=0;i<1000;i++) (*fImedia)[i]=-99; | |
5d12ce38 | 93 | } |
94 | ||
95 | //_______________________________________________________________________ | |
96 | AliMC::AliMC(const AliMC &mc) : | |
97 | TVirtualMCApplication(mc), | |
98 | fGenerator(0), | |
99 | fEventEnergy(0), | |
100 | fSummEnergy(0), | |
101 | fSum2Energy(0), | |
102 | fTrRmax(1.e10), | |
103 | fTrZmax(1.e10), | |
90e48c0c | 104 | fRDecayMax(1.e10), |
38ca2ad6 | 105 | fRDecayMin(-1.), |
90e48c0c | 106 | fDecayPdg(0), |
5d12ce38 | 107 | fImedia(0), |
108 | fTransParName("\0"), | |
109 | fMCQA(0), | |
110 | fHitLists(0), | |
111 | fTrackReferences(0) | |
112 | { | |
113 | // | |
90e48c0c | 114 | // Copy constructor for AliMC |
5d12ce38 | 115 | // |
116 | mc.Copy(*this); | |
117 | } | |
118 | ||
119 | //_______________________________________________________________________ | |
120 | AliMC::~AliMC() | |
121 | { | |
d0d4a6b3 | 122 | //destructor |
5d12ce38 | 123 | delete fGenerator; |
124 | delete fImedia; | |
125 | delete fMCQA; | |
126 | delete fHitLists; | |
127 | // Delete track references | |
128 | if (fTrackReferences) { | |
129 | fTrackReferences->Delete(); | |
130 | delete fTrackReferences; | |
131 | fTrackReferences = 0; | |
132 | } | |
133 | ||
134 | } | |
135 | ||
136 | //_______________________________________________________________________ | |
6c4904c2 | 137 | void AliMC::Copy(TObject &) const |
5d12ce38 | 138 | { |
d0d4a6b3 | 139 | //dummy Copy function |
21bf7095 | 140 | AliFatal("Not implemented!"); |
5d12ce38 | 141 | } |
142 | ||
143 | //_______________________________________________________________________ | |
144 | void AliMC::ConstructGeometry() | |
145 | { | |
146 | // | |
4a9de4af | 147 | // Either load geometry from file or create it through usual |
148 | // loop on detectors. In the first case the method | |
149 | // AliModule::CreateMaterials() only builds fIdtmed and is postponed | |
150 | // at InitGeometry(). | |
5d12ce38 | 151 | // |
152 | ||
4a9de4af | 153 | if(gAlice->IsRootGeometry()){ |
154 | // Load geometry | |
155 | const char *geomfilename = gAlice->GetGeometryFileName(); | |
156 | if(gSystem->ExpandPathName(geomfilename)){ | |
157 | AliInfo(Form("Loading geometry from file:\n %40s\n\n",geomfilename)); | |
158 | TGeoManager::Import(geomfilename); | |
159 | }else{ | |
160 | AliInfo(Form("Geometry file %40s not found!\n",geomfilename)); | |
161 | return; | |
162 | } | |
163 | }else{ | |
164 | // Create modules, materials, geometry | |
5d12ce38 | 165 | TStopwatch stw; |
166 | TIter next(gAlice->Modules()); | |
167 | AliModule *detector; | |
21bf7095 | 168 | AliDebug(1, "Geometry creation:"); |
5d12ce38 | 169 | while((detector = dynamic_cast<AliModule*>(next()))) { |
170 | stw.Start(); | |
171 | // Initialise detector materials and geometry | |
172 | detector->CreateMaterials(); | |
173 | detector->CreateGeometry(); | |
21bf7095 | 174 | AliInfo(Form("%10s R:%.2fs C:%.2fs", |
175 | detector->GetName(),stw.RealTime(),stw.CpuTime())); | |
5d12ce38 | 176 | } |
4a9de4af | 177 | } |
178 | ||
5d12ce38 | 179 | } |
180 | ||
181 | //_______________________________________________________________________ | |
182 | void AliMC::InitGeometry() | |
183 | { | |
184 | // | |
27cf3cdc | 185 | // Initialize detectors |
5d12ce38 | 186 | // |
187 | ||
4a9de4af | 188 | AliInfo("Initialisation:"); |
189 | TStopwatch stw; | |
190 | TIter next(gAlice->Modules()); | |
191 | AliModule *detector; | |
192 | while((detector = dynamic_cast<AliModule*>(next()))) { | |
193 | stw.Start(); | |
27cf3cdc | 194 | // Initialise detector geometry |
4a9de4af | 195 | if(gAlice->IsRootGeometry()) detector->CreateMaterials(); |
196 | detector->Init(); | |
4a9de4af | 197 | AliInfo(Form("%10s R:%.2fs C:%.2fs", |
198 | detector->GetName(),stw.RealTime(),stw.CpuTime())); | |
199 | } | |
4787b401 | 200 | } |
201 | ||
202 | //_______________________________________________________________________ | |
203 | void AliMC::SetAllAlignableVolumes() | |
204 | { | |
205 | // | |
206 | // Add alignable volumes (TGeoPNEntries) looping on all | |
207 | // active modules | |
208 | // | |
209 | ||
210 | AliInfo(Form("Setting entries for all alignable volumes of active detectors")); | |
211 | AliModule *detector; | |
212 | TIter next(gAlice->Modules()); | |
213 | while((detector = dynamic_cast<AliModule*>(next()))) { | |
214 | detector->AddAlignableVolumes(); | |
215 | } | |
5d12ce38 | 216 | } |
217 | ||
218 | //_______________________________________________________________________ | |
2057aecb | 219 | void AliMC::GeneratePrimaries() |
5d12ce38 | 220 | { |
221 | // | |
222 | // Generate primary particles and fill them in the stack. | |
223 | // | |
224 | ||
225 | Generator()->Generate(); | |
226 | } | |
227 | ||
228 | //_______________________________________________________________________ | |
229 | void AliMC::SetGenerator(AliGenerator *generator) | |
230 | { | |
231 | // | |
232 | // Load the event generator | |
233 | // | |
234 | if(!fGenerator) fGenerator = generator; | |
235 | } | |
236 | ||
237 | //_______________________________________________________________________ | |
238 | void AliMC::ResetGenerator(AliGenerator *generator) | |
239 | { | |
240 | // | |
241 | // Load the event generator | |
242 | // | |
243 | if(fGenerator) | |
244 | if(generator) | |
21bf7095 | 245 | AliWarning(Form("Replacing generator %s with %s", |
246 | fGenerator->GetName(),generator->GetName())) | |
5d12ce38 | 247 | else |
21bf7095 | 248 | AliWarning(Form("Replacing generator %s with NULL", |
249 | fGenerator->GetName())); | |
5d12ce38 | 250 | fGenerator = generator; |
251 | } | |
252 | ||
253 | //_______________________________________________________________________ | |
254 | void AliMC::FinishRun() | |
255 | { | |
256 | // Clean generator information | |
21bf7095 | 257 | AliDebug(1, "fGenerator->FinishRun()"); |
5d12ce38 | 258 | fGenerator->FinishRun(); |
259 | ||
260 | //Output energy summary tables | |
21bf7095 | 261 | AliDebug(1, "EnergySummary()"); |
262 | ToAliDebug(1, EnergySummary()); | |
5d12ce38 | 263 | } |
264 | ||
265 | //_______________________________________________________________________ | |
266 | void AliMC::BeginPrimary() | |
267 | { | |
268 | // | |
269 | // Called at the beginning of each primary track | |
270 | // | |
271 | ||
272 | // Reset Hits info | |
273 | ResetHits(); | |
274 | ResetTrackReferences(); | |
275 | ||
276 | } | |
277 | ||
278 | //_______________________________________________________________________ | |
279 | void AliMC::PreTrack() | |
280 | { | |
d0d4a6b3 | 281 | // Actions before the track's transport |
5d12ce38 | 282 | TObjArray &dets = *gAlice->Modules(); |
283 | AliModule *module; | |
284 | ||
285 | for(Int_t i=0; i<=gAlice->GetNdets(); i++) | |
286 | if((module = dynamic_cast<AliModule*>(dets[i]))) | |
287 | module->PreTrack(); | |
288 | ||
289 | fMCQA->PreTrack(); | |
290 | } | |
291 | ||
292 | //_______________________________________________________________________ | |
293 | void AliMC::Stepping() | |
294 | { | |
295 | // | |
296 | // Called at every step during transport | |
297 | // | |
0561efeb | 298 | |
38ca2ad6 | 299 | Int_t id = DetFromMate(gMC->CurrentMedium()); |
5d12ce38 | 300 | if (id < 0) return; |
301 | ||
0561efeb | 302 | |
303 | if ( gMC->IsNewTrack() && | |
304 | gMC->TrackTime() == 0. && | |
38ca2ad6 | 305 | fRDecayMin >= 0. && |
0561efeb | 306 | fRDecayMax > fRDecayMin && |
307 | gMC->TrackPid() == fDecayPdg ) | |
308 | { | |
309 | FixParticleDecaytime(); | |
310 | } | |
311 | ||
312 | ||
313 | ||
5d12ce38 | 314 | // |
315 | // --- If lego option, do it and leave | |
316 | if (gAlice->Lego()) | |
317 | gAlice->Lego()->StepManager(); | |
318 | else { | |
319 | Int_t copy; | |
320 | //Update energy deposition tables | |
321 | AddEnergyDeposit(gMC->CurrentVolID(copy),gMC->Edep()); | |
ab03c084 | 322 | // |
323 | // write tracke reference for track which is dissapearing - MI | |
b60e0f5e | 324 | if (gMC->IsTrackDisappeared()) { |
325 | if (gMC->Etot()>0.05) AddTrackReference(GetCurrentTrackNumber()); | |
326 | } | |
5d12ce38 | 327 | |
328 | //Call the appropriate stepping routine; | |
329 | AliModule *det = dynamic_cast<AliModule*>(gAlice->Modules()->At(id)); | |
330 | if(det && det->StepManagerIsEnabled()) { | |
e569033b | 331 | if(AliLog::GetGlobalDebugLevel()>0) fMCQA->StepManager(id); |
5d12ce38 | 332 | det->StepManager(); |
333 | } | |
334 | } | |
335 | } | |
336 | ||
337 | //_______________________________________________________________________ | |
338 | void AliMC::EnergySummary() | |
339 | { | |
340 | // | |
341 | // Print summary of deposited energy | |
342 | // | |
343 | ||
344 | Int_t ndep=0; | |
345 | Float_t edtot=0; | |
346 | Float_t ed, ed2; | |
347 | Int_t kn, i, left, j, id; | |
348 | const Float_t kzero=0; | |
349 | Int_t ievent=gAlice->GetRunLoader()->GetHeader()->GetEvent()+1; | |
350 | // | |
351 | // Energy loss information | |
352 | if(ievent) { | |
353 | printf("***************** Energy Loss Information per event (GEV) *****************\n"); | |
354 | for(kn=1;kn<fEventEnergy.GetSize();kn++) { | |
355 | ed=fSummEnergy[kn]; | |
356 | if(ed>0) { | |
357 | fEventEnergy[ndep]=kn; | |
358 | if(ievent>1) { | |
359 | ed=ed/ievent; | |
360 | ed2=fSum2Energy[kn]; | |
361 | ed2=ed2/ievent; | |
362 | ed2=100*TMath::Sqrt(TMath::Max(ed2-ed*ed,kzero))/ed; | |
363 | } else | |
364 | ed2=99; | |
365 | fSummEnergy[ndep]=ed; | |
366 | fSum2Energy[ndep]=TMath::Min(static_cast<Float_t>(99.),TMath::Max(ed2,kzero)); | |
367 | edtot+=ed; | |
368 | ndep++; | |
369 | } | |
370 | } | |
371 | for(kn=0;kn<(ndep-1)/3+1;kn++) { | |
372 | left=ndep-kn*3; | |
373 | for(i=0;i<(3<left?3:left);i++) { | |
374 | j=kn*3+i; | |
375 | id=Int_t (fEventEnergy[j]+0.1); | |
376 | printf(" %s %10.3f +- %10.3f%%;",gMC->VolName(id),fSummEnergy[j],fSum2Energy[j]); | |
377 | } | |
378 | printf("\n"); | |
379 | } | |
380 | // | |
381 | // Relative energy loss in different detectors | |
382 | printf("******************** Relative Energy Loss per event ********************\n"); | |
383 | printf("Total energy loss per event %10.3f GeV\n",edtot); | |
384 | for(kn=0;kn<(ndep-1)/5+1;kn++) { | |
385 | left=ndep-kn*5; | |
386 | for(i=0;i<(5<left?5:left);i++) { | |
387 | j=kn*5+i; | |
388 | id=Int_t (fEventEnergy[j]+0.1); | |
389 | printf(" %s %10.3f%%;",gMC->VolName(id),100*fSummEnergy[j]/edtot); | |
390 | } | |
391 | printf("\n"); | |
392 | } | |
393 | for(kn=0;kn<75;kn++) printf("*"); | |
394 | printf("\n"); | |
395 | } | |
396 | // | |
397 | // Reset the TArray's | |
398 | // fEventEnergy.Set(0); | |
399 | // fSummEnergy.Set(0); | |
400 | // fSum2Energy.Set(0); | |
401 | } | |
402 | ||
403 | //_____________________________________________________________________________ | |
404 | void AliMC::BeginEvent() | |
405 | { | |
406 | // | |
407 | // Clean-up previous event | |
408 | // Energy scores | |
21bf7095 | 409 | AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"); |
410 | AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"); | |
411 | AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"); | |
412 | AliDebug(1, " BEGINNING EVENT "); | |
413 | AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"); | |
414 | AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"); | |
415 | AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"); | |
5d12ce38 | 416 | |
417 | AliRunLoader *runloader=gAlice->GetRunLoader(); | |
418 | ||
419 | /*******************************/ | |
420 | /* Clean after eventual */ | |
421 | /* previous event */ | |
422 | /*******************************/ | |
423 | ||
424 | ||
425 | //Set the next event in Run Loader -> Cleans trees (TreeK and all trees in detectors), | |
426 | gAlice->SetEventNrInRun(gAlice->GetEventNrInRun()+1); | |
427 | runloader->SetEventNumber(gAlice->GetEventNrInRun());// sets new files, cleans the previous event stuff, if necessary, etc., | |
21bf7095 | 428 | AliDebug(1, Form("EventNr is %d",gAlice->GetEventNrInRun())); |
5d12ce38 | 429 | |
430 | fEventEnergy.Reset(); | |
431 | // Clean detector information | |
432 | ||
433 | if (runloader->Stack()) | |
434 | runloader->Stack()->Reset();//clean stack -> tree is unloaded | |
435 | else | |
436 | runloader->MakeStack();//or make a new one | |
504b172d | 437 | |
438 | if(gAlice->Lego() == 0x0) | |
439 | { | |
21bf7095 | 440 | AliDebug(1, "fRunLoader->MakeTree(K)"); |
504b172d | 441 | runloader->MakeTree("K"); |
442 | } | |
443 | ||
21bf7095 | 444 | AliDebug(1, "gMC->SetStack(fRunLoader->Stack())"); |
5d12ce38 | 445 | gMC->SetStack(gAlice->GetRunLoader()->Stack());//Was in InitMC - but was moved here |
446 | //because we don't have guarantee that | |
447 | //stack pointer is not going to change from event to event | |
448 | //since it bellobgs to header and is obtained via RunLoader | |
449 | // | |
450 | // Reset all Detectors & kinematics & make/reset trees | |
451 | // | |
452 | ||
453 | runloader->GetHeader()->Reset(gAlice->GetRunNumber(),gAlice->GetEvNumber(), | |
454 | gAlice->GetEventNrInRun()); | |
455 | // fRunLoader->WriteKinematics("OVERWRITE"); is there any reason to rewrite here since MakeTree does so | |
456 | ||
504b172d | 457 | if(gAlice->Lego()) |
458 | { | |
459 | gAlice->Lego()->BeginEvent(); | |
460 | return; | |
461 | } | |
462 | ||
5d12ce38 | 463 | |
21bf7095 | 464 | AliDebug(1, "ResetHits()"); |
5d12ce38 | 465 | ResetHits(); |
504b172d | 466 | |
21bf7095 | 467 | AliDebug(1, "fRunLoader->MakeTree(H)"); |
5d12ce38 | 468 | runloader->MakeTree("H"); |
504b172d | 469 | |
21bf7095 | 470 | AliDebug(1, "fRunLoader->MakeTrackRefsContainer()"); |
504b172d | 471 | runloader->MakeTrackRefsContainer();//for insurance |
5d12ce38 | 472 | |
5d12ce38 | 473 | |
474 | //create new branches and SetAdresses | |
475 | TIter next(gAlice->Modules()); | |
476 | AliModule *detector; | |
477 | while((detector = (AliModule*)next())) | |
478 | { | |
21bf7095 | 479 | AliDebug(2, Form("%s->MakeBranch(H)",detector->GetName())); |
5d12ce38 | 480 | detector->MakeBranch("H"); |
21bf7095 | 481 | AliDebug(2, Form("%s->MakeBranchTR()",detector->GetName())); |
5d12ce38 | 482 | detector->MakeBranchTR(); |
21bf7095 | 483 | AliDebug(2, Form("%s->SetTreeAddress()",detector->GetName())); |
5d12ce38 | 484 | detector->SetTreeAddress(); |
485 | } | |
ab03c084 | 486 | // make branch for AliRun track References |
487 | TTree * treeTR = runloader->TreeTR(); | |
488 | if (treeTR){ | |
489 | // make branch for central track references | |
490 | if (!fTrackReferences) fTrackReferences = new TClonesArray("AliTrackReference",0); | |
491 | TBranch *branch; | |
492 | branch = treeTR->Branch("AliRun",&fTrackReferences); | |
493 | branch->SetAddress(&fTrackReferences); | |
494 | } | |
495 | // | |
5d12ce38 | 496 | } |
497 | ||
498 | //_______________________________________________________________________ | |
499 | void AliMC::ResetHits() | |
500 | { | |
501 | // | |
502 | // Reset all Detectors hits | |
503 | // | |
504 | TIter next(gAlice->Modules()); | |
505 | AliModule *detector; | |
506 | while((detector = dynamic_cast<AliModule*>(next()))) { | |
507 | detector->ResetHits(); | |
508 | } | |
509 | } | |
510 | ||
511 | //_______________________________________________________________________ | |
512 | void AliMC::PostTrack() | |
513 | { | |
d0d4a6b3 | 514 | // Posts tracks for each module |
4a9de4af | 515 | TObjArray &dets = *gAlice->Modules(); |
516 | AliModule *module; | |
517 | ||
518 | for(Int_t i=0; i<=gAlice->GetNdets(); i++) | |
519 | if((module = dynamic_cast<AliModule*>(dets[i]))) | |
520 | module->PostTrack(); | |
5d12ce38 | 521 | } |
522 | ||
523 | //_______________________________________________________________________ | |
524 | void AliMC::FinishPrimary() | |
525 | { | |
526 | // | |
527 | // Called at the end of each primary track | |
528 | // | |
529 | AliRunLoader *runloader=gAlice->GetRunLoader(); | |
530 | // static Int_t count=0; | |
531 | // const Int_t times=10; | |
532 | // This primary is finished, purify stack | |
c75cfb51 | 533 | #if ROOT_VERSION_CODE > 262152 |
05c7517d | 534 | if (!(gMC->SecondariesAreOrdered())) |
535 | runloader->Stack()->ReorderKine(); | |
c75cfb51 | 536 | #endif |
5d12ce38 | 537 | runloader->Stack()->PurifyKine(); |
504b172d | 538 | |
5d12ce38 | 539 | TIter next(gAlice->Modules()); |
540 | AliModule *detector; | |
541 | while((detector = dynamic_cast<AliModule*>(next()))) { | |
542 | detector->FinishPrimary(); | |
504b172d | 543 | AliLoader* loader = detector->GetLoader(); |
544 | if(loader) | |
545 | { | |
546 | TTree* treeH = loader->TreeH(); | |
547 | if (treeH) treeH->Fill(); //can be Lego run and treeH can not exist | |
548 | } | |
5d12ce38 | 549 | } |
550 | ||
551 | // Write out track references if any | |
552 | if (runloader->TreeTR()) runloader->TreeTR()->Fill(); | |
553 | } | |
554 | ||
555 | //_______________________________________________________________________ | |
556 | void AliMC::FinishEvent() | |
557 | { | |
558 | // | |
559 | // Called at the end of the event. | |
560 | // | |
561 | ||
562 | // | |
38ca2ad6 | 563 | |
5d12ce38 | 564 | if(gAlice->Lego()) gAlice->Lego()->FinishEvent(); |
565 | ||
566 | TIter next(gAlice->Modules()); | |
567 | AliModule *detector; | |
568 | while((detector = dynamic_cast<AliModule*>(next()))) { | |
569 | detector->FinishEvent(); | |
570 | } | |
571 | ||
572 | //Update the energy deposit tables | |
573 | Int_t i; | |
574 | for(i=0;i<fEventEnergy.GetSize();i++) | |
575 | { | |
576 | fSummEnergy[i]+=fEventEnergy[i]; | |
577 | fSum2Energy[i]+=fEventEnergy[i]*fEventEnergy[i]; | |
578 | } | |
579 | ||
580 | AliRunLoader *runloader=gAlice->GetRunLoader(); | |
581 | ||
582 | AliHeader* header = runloader->GetHeader(); | |
583 | AliStack* stack = runloader->Stack(); | |
584 | if ( (header == 0x0) || (stack == 0x0) ) | |
585 | {//check if we got header and stack. If not cry and exit aliroot | |
21bf7095 | 586 | AliFatal("Can not get the stack or header from LOADER"); |
5d12ce38 | 587 | return;//never reached |
588 | } | |
589 | // Update Header information | |
590 | header->SetNprimary(stack->GetNprimary()); | |
591 | header->SetNtrack(stack->GetNtrack()); | |
592 | ||
593 | ||
594 | // Write out the kinematics | |
38ca2ad6 | 595 | if (!gAlice->Lego()) stack->FinishEvent(); |
5d12ce38 | 596 | |
597 | // Write out the event Header information | |
598 | TTree* treeE = runloader->TreeE(); | |
599 | if (treeE) | |
600 | { | |
601 | header->SetStack(stack); | |
602 | treeE->Fill(); | |
603 | } | |
604 | else | |
605 | { | |
21bf7095 | 606 | AliError("Can not get TreeE from RL"); |
5d12ce38 | 607 | } |
608 | ||
504b172d | 609 | if(gAlice->Lego() == 0x0) |
610 | { | |
611 | runloader->WriteKinematics("OVERWRITE"); | |
612 | runloader->WriteTrackRefs("OVERWRITE"); | |
613 | runloader->WriteHits("OVERWRITE"); | |
614 | } | |
615 | ||
21bf7095 | 616 | AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<"); |
617 | AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<"); | |
618 | AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<"); | |
619 | AliDebug(1, " FINISHING EVENT "); | |
620 | AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<"); | |
621 | AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<"); | |
622 | AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<"); | |
5d12ce38 | 623 | } |
624 | ||
625 | //_______________________________________________________________________ | |
626 | void AliMC::Field(const Double_t* x, Double_t* b) const | |
627 | { | |
d0d4a6b3 | 628 | // Calculates field "b" at point "x" |
5d12ce38 | 629 | gAlice->Field(x,b); |
630 | } | |
631 | ||
632 | //_______________________________________________________________________ | |
633 | void AliMC::Init() | |
634 | { | |
d0d4a6b3 | 635 | // MC initialization |
5d12ce38 | 636 | |
637 | //=================Create Materials and geometry | |
638 | gMC->Init(); | |
4787b401 | 639 | //Set alignable volumes for the whole geometry |
640 | SetAllAlignableVolumes(); | |
5d12ce38 | 641 | //Read the cuts for all materials |
642 | ReadTransPar(); | |
643 | //Build the special IMEDIA table | |
644 | MediaTable(); | |
645 | ||
646 | //Compute cross-sections | |
647 | gMC->BuildPhysics(); | |
648 | ||
5d12ce38 | 649 | //Initialise geometry deposition table |
650 | fEventEnergy.Set(gMC->NofVolumes()+1); | |
651 | fSummEnergy.Set(gMC->NofVolumes()+1); | |
652 | fSum2Energy.Set(gMC->NofVolumes()+1); | |
653 | ||
654 | // | |
655 | fMCQA = new AliMCQA(gAlice->GetNdets()); | |
656 | ||
657 | // Register MC in configuration | |
658 | AliConfig::Instance()->Add(gMC); | |
659 | ||
660 | } | |
661 | ||
662 | //_______________________________________________________________________ | |
663 | void AliMC::MediaTable() | |
664 | { | |
665 | // | |
666 | // Built media table to get from the media number to | |
667 | // the detector id | |
668 | // | |
669 | ||
670 | Int_t kz, nz, idt, lz, i, k, ind; | |
671 | // Int_t ibeg; | |
672 | TObjArray &dets = *gAlice->Detectors(); | |
673 | AliModule *det; | |
674 | Int_t ndets=gAlice->GetNdets(); | |
675 | // | |
676 | // For all detectors | |
677 | for (kz=0;kz<ndets;kz++) { | |
678 | // If detector is defined | |
679 | if((det=dynamic_cast<AliModule*>(dets[kz]))) { | |
680 | TArrayI &idtmed = *(det->GetIdtmed()); | |
681 | for(nz=0;nz<100;nz++) { | |
0561efeb | 682 | |
5d12ce38 | 683 | // Find max and min material number |
684 | if((idt=idtmed[nz])) { | |
685 | det->LoMedium() = det->LoMedium() < idt ? det->LoMedium() : idt; | |
686 | det->HiMedium() = det->HiMedium() > idt ? det->HiMedium() : idt; | |
687 | } | |
688 | } | |
689 | if(det->LoMedium() > det->HiMedium()) { | |
690 | det->LoMedium() = 0; | |
691 | det->HiMedium() = 0; | |
692 | } else { | |
693 | if(det->HiMedium() > fImedia->GetSize()) { | |
21bf7095 | 694 | AliError(Form("Increase fImedia from %d to %d", |
695 | fImedia->GetSize(),det->HiMedium())); | |
5d12ce38 | 696 | return; |
697 | } | |
698 | // Tag all materials in rage as belonging to detector kz | |
699 | for(lz=det->LoMedium(); lz<= det->HiMedium(); lz++) { | |
700 | (*fImedia)[lz]=kz; | |
701 | } | |
702 | } | |
703 | } | |
704 | } | |
705 | // | |
706 | // Print summary table | |
21bf7095 | 707 | AliInfo("Tracking media ranges:"); |
708 | ToAliInfo( | |
5d12ce38 | 709 | for(i=0;i<(ndets-1)/6+1;i++) { |
710 | for(k=0;k< (6<ndets-i*6?6:ndets-i*6);k++) { | |
711 | ind=i*6+k; | |
712 | det=dynamic_cast<AliModule*>(dets[ind]); | |
713 | if(det) | |
714 | printf(" %6s: %3d -> %3d;",det->GetName(),det->LoMedium(), | |
715 | det->HiMedium()); | |
716 | else | |
717 | printf(" %6s: %3d -> %3d;","NULL",0,0); | |
718 | } | |
719 | printf("\n"); | |
720 | } | |
21bf7095 | 721 | ) |
5d12ce38 | 722 | } |
723 | ||
724 | //_______________________________________________________________________ | |
725 | void AliMC::ReadTransPar() | |
726 | { | |
727 | // | |
728 | // Read filename to set the transport parameters | |
729 | // | |
730 | ||
731 | ||
732 | const Int_t kncuts=10; | |
733 | const Int_t knflags=11; | |
734 | const Int_t knpars=kncuts+knflags; | |
735 | const char kpars[knpars][7] = {"CUTGAM" ,"CUTELE","CUTNEU","CUTHAD","CUTMUO", | |
736 | "BCUTE","BCUTM","DCUTE","DCUTM","PPCUTM","ANNI", | |
737 | "BREM","COMP","DCAY","DRAY","HADR","LOSS", | |
738 | "MULS","PAIR","PHOT","RAYL"}; | |
739 | char line[256]; | |
740 | char detName[7]; | |
741 | char* filtmp; | |
742 | Float_t cut[kncuts]; | |
743 | Int_t flag[knflags]; | |
744 | Int_t i, itmed, iret, ktmed, kz; | |
745 | FILE *lun; | |
746 | // | |
747 | // See whether the file is there | |
748 | filtmp=gSystem->ExpandPathName(fTransParName.Data()); | |
749 | lun=fopen(filtmp,"r"); | |
750 | delete [] filtmp; | |
751 | if(!lun) { | |
21bf7095 | 752 | AliWarning(Form("File %s does not exist!",fTransParName.Data())); |
5d12ce38 | 753 | return; |
754 | } | |
755 | // | |
5d12ce38 | 756 | while(1) { |
757 | // Initialise cuts and flags | |
758 | for(i=0;i<kncuts;i++) cut[i]=-99; | |
759 | for(i=0;i<knflags;i++) flag[i]=-99; | |
760 | itmed=0; | |
761 | for(i=0;i<256;i++) line[i]='\0'; | |
762 | // Read up to the end of line excluded | |
763 | iret=fscanf(lun,"%[^\n]",line); | |
764 | if(iret<0) { | |
765 | //End of file | |
766 | fclose(lun); | |
5d12ce38 | 767 | return; |
768 | } | |
769 | // Read the end of line | |
770 | fscanf(lun,"%*c"); | |
771 | if(!iret) continue; | |
772 | if(line[0]=='*') continue; | |
773 | // Read the numbers | |
774 | iret=sscanf(line,"%s %d %f %f %f %f %f %f %f %f %f %f %d %d %d %d %d %d %d %d %d %d %d", | |
775 | detName,&itmed,&cut[0],&cut[1],&cut[2],&cut[3],&cut[4],&cut[5],&cut[6],&cut[7],&cut[8], | |
776 | &cut[9],&flag[0],&flag[1],&flag[2],&flag[3],&flag[4],&flag[5],&flag[6],&flag[7], | |
777 | &flag[8],&flag[9],&flag[10]); | |
778 | if(!iret) continue; | |
779 | if(iret<0) { | |
780 | //reading error | |
21bf7095 | 781 | AliWarning(Form("Error reading file %s",fTransParName.Data())); |
5d12ce38 | 782 | continue; |
783 | } | |
784 | // Check that the module exist | |
785 | AliModule *mod = gAlice->GetModule(detName); | |
786 | if(mod) { | |
787 | // Get the array of media numbers | |
788 | TArrayI &idtmed = *mod->GetIdtmed(); | |
789 | // Check that the tracking medium code is valid | |
790 | if(0<=itmed && itmed < 100) { | |
791 | ktmed=idtmed[itmed]; | |
792 | if(!ktmed) { | |
21bf7095 | 793 | AliWarning(Form("Invalid tracking medium code %d for %s",itmed,mod->GetName())); |
5d12ce38 | 794 | continue; |
795 | } | |
796 | // Set energy thresholds | |
797 | for(kz=0;kz<kncuts;kz++) { | |
798 | if(cut[kz]>=0) { | |
21bf7095 | 799 | AliDebug(2, Form("%-6s set to %10.3E for tracking medium code %4d for %s", |
800 | kpars[kz],cut[kz],itmed,mod->GetName())); | |
5d12ce38 | 801 | gMC->Gstpar(ktmed,kpars[kz],cut[kz]); |
802 | } | |
803 | } | |
804 | // Set transport mechanisms | |
805 | for(kz=0;kz<knflags;kz++) { | |
806 | if(flag[kz]>=0) { | |
21bf7095 | 807 | AliDebug(2, Form("%-6s set to %10d for tracking medium code %4d for %s", |
808 | kpars[kncuts+kz],flag[kz],itmed,mod->GetName())); | |
5d12ce38 | 809 | gMC->Gstpar(ktmed,kpars[kncuts+kz],Float_t(flag[kz])); |
810 | } | |
811 | } | |
812 | } else { | |
21bf7095 | 813 | AliWarning(Form("Invalid medium code %d",itmed)); |
5d12ce38 | 814 | continue; |
815 | } | |
816 | } else { | |
21bf7095 | 817 | AliDebug(1, Form("%s not present",detName)); |
5d12ce38 | 818 | continue; |
819 | } | |
820 | } | |
821 | } | |
822 | ||
823 | //_______________________________________________________________________ | |
824 | void AliMC::SetTransPar(const char *filename) | |
825 | { | |
826 | // | |
827 | // Sets the file name for transport parameters | |
828 | // | |
829 | fTransParName = filename; | |
830 | } | |
831 | ||
832 | //_______________________________________________________________________ | |
0054628d | 833 | void AliMC::Browse(TBrowser *b) |
5d12ce38 | 834 | { |
835 | // | |
836 | // Called when the item "Run" is clicked on the left pane | |
837 | // of the Root browser. | |
838 | // It displays the Root Trees and all detectors. | |
839 | // | |
840 | //detectors are in folders anyway | |
841 | b->Add(fMCQA,"AliMCQA"); | |
842 | } | |
843 | ||
5d12ce38 | 844 | //_______________________________________________________________________ |
845 | void AliMC::AddHit(Int_t id, Int_t track, Int_t *vol, Float_t *hits) const | |
846 | { | |
847 | // | |
848 | // Add a hit to detector id | |
849 | // | |
850 | TObjArray &dets = *gAlice->Modules(); | |
851 | if(dets[id]) dynamic_cast<AliModule*>(dets[id])->AddHit(track,vol,hits); | |
852 | } | |
853 | ||
854 | //_______________________________________________________________________ | |
855 | void AliMC::AddDigit(Int_t id, Int_t *tracks, Int_t *digits) const | |
856 | { | |
857 | // | |
858 | // Add digit to detector id | |
859 | // | |
860 | TObjArray &dets = *gAlice->Modules(); | |
861 | if(dets[id]) dynamic_cast<AliModule*>(dets[id])->AddDigit(tracks,digits); | |
862 | } | |
863 | ||
864 | //_______________________________________________________________________ | |
865 | Int_t AliMC::GetCurrentTrackNumber() const { | |
866 | // | |
867 | // Returns current track | |
868 | // | |
869 | return gAlice->GetRunLoader()->Stack()->GetCurrentTrackNumber(); | |
870 | } | |
871 | ||
872 | //_______________________________________________________________________ | |
873 | void AliMC::DumpPart (Int_t i) const | |
874 | { | |
875 | // | |
876 | // Dumps particle i in the stack | |
877 | // | |
878 | AliRunLoader * runloader = gAlice->GetRunLoader(); | |
879 | if (runloader->Stack()) | |
880 | runloader->Stack()->DumpPart(i); | |
881 | } | |
882 | ||
883 | //_______________________________________________________________________ | |
884 | void AliMC::DumpPStack () const | |
885 | { | |
886 | // | |
887 | // Dumps the particle stack | |
888 | // | |
889 | AliRunLoader * runloader = gAlice->GetRunLoader(); | |
890 | if (runloader->Stack()) | |
891 | runloader->Stack()->DumpPStack(); | |
892 | } | |
893 | ||
894 | //_______________________________________________________________________ | |
895 | Int_t AliMC::GetNtrack() const { | |
896 | // | |
897 | // Returns number of tracks in stack | |
898 | // | |
899 | Int_t ntracks = -1; | |
900 | AliRunLoader * runloader = gAlice->GetRunLoader(); | |
901 | if (runloader->Stack()) | |
902 | ntracks = runloader->Stack()->GetNtrack(); | |
903 | return ntracks; | |
904 | } | |
905 | ||
906 | //_______________________________________________________________________ | |
907 | Int_t AliMC::GetPrimary(Int_t track) const | |
908 | { | |
909 | // | |
910 | // return number of primary that has generated track | |
911 | // | |
912 | Int_t nprimary = -999; | |
913 | AliRunLoader * runloader = gAlice->GetRunLoader(); | |
914 | if (runloader->Stack()) | |
915 | nprimary = runloader->Stack()->GetPrimary(track); | |
916 | return nprimary; | |
917 | } | |
918 | ||
919 | //_______________________________________________________________________ | |
920 | TParticle* AliMC::Particle(Int_t i) const | |
921 | { | |
d0d4a6b3 | 922 | // Returns the i-th particle from the stack taking into account |
923 | // the remaping done by PurifyKine | |
5d12ce38 | 924 | AliRunLoader * runloader = gAlice->GetRunLoader(); |
925 | if (runloader) | |
926 | if (runloader->Stack()) | |
927 | return runloader->Stack()->Particle(i); | |
928 | return 0x0; | |
929 | } | |
930 | ||
931 | //_______________________________________________________________________ | |
932 | TObjArray* AliMC::Particles() const { | |
933 | // | |
934 | // Returns pointer to Particles array | |
935 | // | |
936 | AliRunLoader * runloader = gAlice->GetRunLoader(); | |
937 | if (runloader) | |
938 | if (runloader->Stack()) | |
939 | return runloader->Stack()->Particles(); | |
940 | return 0x0; | |
941 | } | |
942 | ||
943 | //_______________________________________________________________________ | |
944 | void AliMC::PushTrack(Int_t done, Int_t parent, Int_t pdg, Float_t *pmom, | |
945 | Float_t *vpos, Float_t *polar, Float_t tof, | |
2057aecb | 946 | TMCProcess mech, Int_t &ntr, Float_t weight, Int_t is) const |
5d12ce38 | 947 | { |
948 | // Delegate to stack | |
949 | // | |
950 | AliRunLoader * runloader = gAlice->GetRunLoader(); | |
951 | if (runloader) | |
952 | if (runloader->Stack()) | |
953 | runloader->Stack()->PushTrack(done, parent, pdg, pmom, vpos, polar, tof, | |
954 | mech, ntr, weight, is); | |
955 | } | |
956 | ||
957 | //_______________________________________________________________________ | |
958 | void AliMC::PushTrack(Int_t done, Int_t parent, Int_t pdg, | |
959 | Double_t px, Double_t py, Double_t pz, Double_t e, | |
960 | Double_t vx, Double_t vy, Double_t vz, Double_t tof, | |
961 | Double_t polx, Double_t poly, Double_t polz, | |
2057aecb | 962 | TMCProcess mech, Int_t &ntr, Float_t weight, Int_t is) const |
5d12ce38 | 963 | { |
964 | // Delegate to stack | |
965 | // | |
966 | AliRunLoader * runloader = gAlice->GetRunLoader(); | |
967 | if (runloader) | |
968 | if (runloader->Stack()) | |
969 | runloader->Stack()->PushTrack(done, parent, pdg, px, py, pz, e, vx, vy, vz, tof, | |
970 | polx, poly, polz, mech, ntr, weight, is); | |
971 | } | |
972 | ||
973 | //_______________________________________________________________________ | |
2057aecb | 974 | void AliMC::SetHighWaterMark(Int_t nt) const |
5d12ce38 | 975 | { |
976 | // | |
977 | // Set high water mark for last track in event | |
978 | AliRunLoader * runloader = gAlice->GetRunLoader(); | |
979 | if (runloader) | |
980 | if (runloader->Stack()) | |
981 | runloader->Stack()->SetHighWaterMark(nt); | |
982 | } | |
983 | ||
984 | //_______________________________________________________________________ | |
2057aecb | 985 | void AliMC::KeepTrack(Int_t track) const |
5d12ce38 | 986 | { |
987 | // | |
988 | // Delegate to stack | |
989 | // | |
990 | AliRunLoader * runloader = gAlice->GetRunLoader(); | |
991 | if (runloader) | |
992 | if (runloader->Stack()) | |
993 | runloader->Stack()->KeepTrack(track); | |
994 | } | |
995 | ||
996 | //_______________________________________________________________________ | |
2057aecb | 997 | void AliMC::FlagTrack(Int_t track) const |
5d12ce38 | 998 | { |
999 | // Delegate to stack | |
1000 | // | |
1001 | AliRunLoader * runloader = gAlice->GetRunLoader(); | |
1002 | if (runloader) | |
1003 | if (runloader->Stack()) | |
1004 | runloader->Stack()->FlagTrack(track); | |
1005 | } | |
1006 | ||
1007 | //_______________________________________________________________________ | |
2057aecb | 1008 | void AliMC::SetCurrentTrack(Int_t track) const |
5d12ce38 | 1009 | { |
1010 | // | |
1011 | // Set current track number | |
1012 | // | |
1013 | AliRunLoader * runloader = gAlice->GetRunLoader(); | |
1014 | if (runloader) | |
1015 | if (runloader->Stack()) | |
1016 | runloader->Stack()->SetCurrentTrack(track); | |
1017 | } | |
1018 | ||
1019 | //_______________________________________________________________________ | |
1020 | void AliMC::AddTrackReference(Int_t label){ | |
1021 | // | |
1022 | // add a trackrefernce to the list | |
1023 | if (!fTrackReferences) { | |
21bf7095 | 1024 | AliError("Container trackrefernce not active"); |
5d12ce38 | 1025 | return; |
1026 | } | |
1027 | Int_t nref = fTrackReferences->GetEntriesFast(); | |
1028 | TClonesArray &lref = *fTrackReferences; | |
1029 | new(lref[nref]) AliTrackReference(label); | |
1030 | } | |
1031 | ||
1032 | ||
1033 | ||
1034 | //_______________________________________________________________________ | |
1035 | void AliMC::ResetTrackReferences() | |
1036 | { | |
1037 | // | |
1038 | // Reset all references | |
1039 | // | |
1040 | if (fTrackReferences) fTrackReferences->Clear(); | |
1041 | ||
1042 | TIter next(gAlice->Modules()); | |
1043 | AliModule *detector; | |
1044 | while((detector = dynamic_cast<AliModule*>(next()))) { | |
1045 | detector->ResetTrackReferences(); | |
1046 | } | |
1047 | } | |
1048 | ||
1049 | void AliMC::RemapTrackReferencesIDs(Int_t *map) | |
1050 | { | |
1051 | // | |
1052 | // Remapping track reference | |
1053 | // Called at finish primary | |
1054 | // | |
1055 | if (!fTrackReferences) return; | |
4e490a96 | 1056 | Int_t nEntries = fTrackReferences->GetEntries(); |
1057 | for (Int_t i=0; i < nEntries; i++){ | |
1058 | AliTrackReference * ref = dynamic_cast<AliTrackReference*>(fTrackReferences->UncheckedAt(i)); | |
1059 | if (ref) { | |
1060 | Int_t newID = map[ref->GetTrack()]; | |
1061 | if (newID>=0) ref->SetTrack(newID); | |
1062 | else { | |
1063 | ref->SetBit(kNotDeleted,kFALSE); | |
1064 | fTrackReferences->RemoveAt(i); | |
1065 | } | |
1066 | } // if ref | |
5d12ce38 | 1067 | } |
1068 | fTrackReferences->Compress(); | |
1069 | } | |
0561efeb | 1070 | |
1071 | void AliMC::FixParticleDecaytime() | |
1072 | { | |
1073 | // | |
1074 | // Fix the particle decay time according to rmin and rmax for decays | |
1075 | // | |
1076 | ||
1077 | TLorentzVector p; | |
1078 | gMC->TrackMomentum(p); | |
1079 | Double_t tmin, tmax; | |
1080 | Double_t b; | |
1081 | ||
1082 | // Transverse velocity | |
1083 | Double_t vt = p.Pt() / p.E(); | |
1084 | ||
1085 | if ((b = gAlice->Field()->SolenoidField()) > 0.) { // [kG] | |
1086 | ||
1087 | // Radius of helix | |
1088 | ||
1089 | Double_t rho = p.Pt() / 0.0003 / b; // [cm] | |
1090 | ||
1091 | // Revolution frequency | |
1092 | ||
1093 | Double_t omega = vt / rho; | |
1094 | ||
1095 | // Maximum and minimum decay time | |
1096 | // | |
1097 | // Check for curlers first | |
1098 | if (fRDecayMax * fRDecayMax / rho / rho / 2. > 1.) return; | |
1099 | ||
1100 | // | |
1101 | ||
1102 | tmax = TMath::ACos(1. - fRDecayMax * fRDecayMax / rho / rho / 2.) / omega; // [ct] | |
1103 | tmin = TMath::ACos(1. - fRDecayMin * fRDecayMin / rho / rho / 2.) / omega; // [ct] | |
1104 | } else { | |
1105 | tmax = fRDecayMax / vt; // [ct] | |
1106 | tmin = fRDecayMin / vt; // [ct] | |
1107 | } | |
1108 | ||
1109 | // | |
1110 | // Dial t using the two limits | |
1111 | Double_t t = tmin + (tmax - tmin) * gRandom->Rndm(); // [ct] | |
1112 | // | |
1113 | // | |
1114 | // Force decay time in transport code | |
1115 | // | |
fa7ca4da | 1116 | gMC->ForceDecayTime(t / 2.99792458e10); |
0561efeb | 1117 | } |