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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
01a0f5d0 24#include <string.h>
25
c75cfb51 26#include <RVersion.h>
3e2e3ece 27#include <TArrayI.h>
7ca4655f 28#include <TClonesArray.h>
3e2e3ece 29#include <TFile.h>
f7a1cc68 30#include <TGeoGlobalMagField.h>
7ca4655f 31#include <TGeoManager.h>
3e2e3ece 32#include <TParticle.h>
33#include <TROOT.h>
5d12ce38 34#include <TStopwatch.h>
35#include <TSystem.h>
36#include <TVirtualMC.h>
81333cca 37#include <TMCVerbose.h>
c93255fe 38#include <TTree.h>
b60e0f5e 39
3e2e3ece 40#include "AliCDBEntry.h"
41#include "AliCDBManager.h"
42#include "AliCDBStorage.h"
5d12ce38 43#include "AliDetector.h"
44#include "AliGenerator.h"
3e2e3ece 45#include "AliGeomManager.h"
5d12ce38 46#include "AliHeader.h"
3e2e3ece 47#include "AliHit.h"
5d12ce38 48#include "AliLego.h"
3e2e3ece 49#include "AliLog.h"
5d12ce38 50#include "AliMC.h"
3e2e3ece 51#include "AliMagF.h"
5d12ce38 52#include "AliRun.h"
3e2e3ece 53#include "AliSimulation.h"
5d12ce38 54#include "AliStack.h"
55#include "AliTrackReference.h"
a5fe2c41 56#include "AliTransportMonitor.h"
5d12ce38 57
66b0310c 58using std::endl;
59using std::cout;
5d12ce38 60ClassImp(AliMC)
61
62//_______________________________________________________________________
63AliMC::AliMC() :
64 fGenerator(0),
9d188d33 65 fSaveRndmStatus(kFALSE),
66 fSaveRndmEventStatus(kFALSE),
67 fReadRndmStatus(kFALSE),
a5fe2c41 68 fUseMonitoring(kFALSE),
9d188d33 69 fRndmFileName("random.root"),
5d12ce38 70 fEventEnergy(0),
71 fSummEnergy(0),
72 fSum2Energy(0),
73 fTrRmax(1.e10),
74 fTrZmax(1.e10),
90e48c0c 75 fRDecayMax(1.e10),
38ca2ad6 76 fRDecayMin(-1.),
90e48c0c 77 fDecayPdg(0),
5d12ce38 78 fImedia(0),
79 fTransParName("\0"),
a5fe2c41 80 fMonitor(0),
5d12ce38 81 fHitLists(0),
3cac0921 82 fTmpTreeTR(0),
83 fTmpFileTR(0),
fd650020 84 fTrackReferences(),
85 fTmpTrackReferences()
5d12ce38 86
87{
d0d4a6b3 88 //default constructor
0561efeb 89 DecayLimits();
5d12ce38 90}
91
92//_______________________________________________________________________
93AliMC::AliMC(const char *name, const char *title) :
94 TVirtualMCApplication(name, title),
95 fGenerator(0),
9d188d33 96 fSaveRndmStatus(kFALSE),
97 fSaveRndmEventStatus(kFALSE),
98 fReadRndmStatus(kFALSE),
a5fe2c41 99 fUseMonitoring(kFALSE),
9d188d33 100 fRndmFileName("random.root"),
5d12ce38 101 fEventEnergy(0),
102 fSummEnergy(0),
103 fSum2Energy(0),
104 fTrRmax(1.e10),
105 fTrZmax(1.e10),
90e48c0c 106 fRDecayMax(1.e10),
38ca2ad6 107 fRDecayMin(-1.),
90e48c0c 108 fDecayPdg(0),
5d12ce38 109 fImedia(new TArrayI(1000)),
110 fTransParName("\0"),
a5fe2c41 111 fMonitor(0),
5d12ce38 112 fHitLists(new TList()),
3cac0921 113 fTmpTreeTR(0),
114 fTmpFileTR(0),
fd650020 115 fTrackReferences("AliTrackReference", 100),
116 fTmpTrackReferences("AliTrackReference", 100)
5d12ce38 117{
d0d4a6b3 118 //constructor
5d12ce38 119 // Set transport parameters
120 SetTransPar();
0561efeb 121 DecayLimits();
5d12ce38 122 // Prepare the tracking medium lists
123 for(Int_t i=0;i<1000;i++) (*fImedia)[i]=-99;
5d12ce38 124}
125
5d12ce38 126//_______________________________________________________________________
127AliMC::~AliMC()
128{
d0d4a6b3 129 //destructor
5d12ce38 130 delete fGenerator;
131 delete fImedia;
5d12ce38 132 delete fHitLists;
a5fe2c41 133 delete fMonitor;
5d12ce38 134 // Delete track references
5d12ce38 135}
136
5d12ce38 137//_______________________________________________________________________
138void AliMC::ConstructGeometry()
139{
140 //
4a9de4af 141 // Either load geometry from file or create it through usual
142 // loop on detectors. In the first case the method
143 // AliModule::CreateMaterials() only builds fIdtmed and is postponed
144 // at InitGeometry().
5d12ce38 145 //
146
d97f1dbe 147 if(AliSimulation::Instance()->IsGeometryFromFile()){ //load geometry either from CDB or from file
148 if(IsGeometryFromCDB()){
ced249e6 149 AliInfo("Loading geometry from CDB default storage");
150 AliCDBPath path("GRP","Geometry","Data");
151 AliCDBEntry *entry=AliCDBManager::Instance()->Get(path.GetPath());
152 if(!entry) AliFatal("Unable to load geometry from CDB!");
153 entry->SetOwner(0);
154 gGeoManager = (TGeoManager*) entry->GetObject();
155 if (!gGeoManager) AliFatal("TGeoManager object not found in the specified CDB entry!");
4a9de4af 156 }else{
ced249e6 157 // Load geometry
d97f1dbe 158 const char *geomfilename = AliSimulation::Instance()->GetGeometryFile();
ced249e6 159 if(gSystem->ExpandPathName(geomfilename)){
160 AliInfo(Form("Loading geometry from file:\n %40s",geomfilename));
161 TGeoManager::Import(geomfilename);
162 }else{
163 AliInfo(Form("Geometry file %40s not found!\n",geomfilename));
164 return;
165 }
4a9de4af 166 }
f82dfc3c 167 gMC->SetRootGeometry();
4a9de4af 168 }else{
169 // Create modules, materials, geometry
e8bfa5e3 170 if (!gGeoManager) new TGeoManager("ALICE", "ALICE geometry");
5d12ce38 171 TStopwatch stw;
172 TIter next(gAlice->Modules());
173 AliModule *detector;
21bf7095 174 AliDebug(1, "Geometry creation:");
5d12ce38 175 while((detector = dynamic_cast<AliModule*>(next()))) {
176 stw.Start();
177 // Initialise detector materials and geometry
178 detector->CreateMaterials();
179 detector->CreateGeometry();
21bf7095 180 AliInfo(Form("%10s R:%.2fs C:%.2fs",
181 detector->GetName(),stw.RealTime(),stw.CpuTime()));
5d12ce38 182 }
4a9de4af 183 }
184
5d12ce38 185}
186
39b3f8ba 187//_______________________________________________________________________
188Bool_t AliMC::MisalignGeometry()
189{
d97f1dbe 190 // Call misalignment code if AliSimulation object was defined.
191
192 if(!AliSimulation::Instance()->IsGeometryFromFile()){
193 //Set alignable volumes for the whole geometry
194 SetAllAlignableVolumes();
195 }
196 // Misalign geometry via AliSimulation instance
197 if (!AliSimulation::Instance()) return kFALSE;
198 AliGeomManager::SetGeometry(gGeoManager);
199 if(!AliGeomManager::CheckSymNamesLUT("ALL"))
0bf7aade 200 AliFatal("Current loaded geometry differs in the definition of symbolic names!");
d97f1dbe 201
202 return AliSimulation::Instance()->MisalignGeometry(AliRunLoader::Instance());
39b3f8ba 203}
204
661663fa 205//_______________________________________________________________________
206void AliMC::ConstructOpGeometry()
207{
208 //
209 // Loop all detector modules and call DefineOpticalProperties() method
210 //
211
212 TIter next(gAlice->Modules());
213 AliModule *detector;
214 AliInfo("Optical properties definition");
215 while((detector = dynamic_cast<AliModule*>(next()))) {
dde0a601 216 // Initialise detector geometry
d97f1dbe 217 if(AliSimulation::Instance()->IsGeometryFromFile()) detector->CreateMaterials();
661663fa 218 // Initialise detector optical properties
219 detector->DefineOpticalProperties();
220 }
221}
222
81333cca 223#include <TPDGCode.h>
224//_______________________________________________________________________
225void AliMC::AddParticles()
226{
227 //
228 // Add particles (not present in Geant3 or Geant4)
229 //
230
231 // --------------------------------------------------------------------
232 // An example of adding a particle He5 with defined decay mode
233 // (TO BE REMOVED after a useful code is added)
234
235 cout << "########## AliMC::AddParticles" << endl;
236
237 //Hypertriton
238 gMC->DefineParticle(1010010030, "HyperTriton", kPTHadron, 2.99131 , 1.0, 2.632e-10,"Ion", 0.0, 0, 1, 0, 0, 0, 0, 0, 3, kFALSE);
239 //Anti-Hypertriton
240 gMC->DefineParticle(-1010010030, "AntiHyperTriton", kPTHadron, 2.99131 , 1.0, 2.632e-10,"Ion", 0.0, 0, 1, 0, 0, 0, 0, 0, 3, kFALSE);
241
c05d75f7 242//Hyper hydrogen 4
243 gMC->DefineParticle(1010010040, "Hyperhydrog4", kPTHadron, 3.931 , 1.0, 2.632e-10,"Ion", 0.0, 0, 1, 0, 0, 0, 0, 0, 4, kFALSE);
244 //Anti-Hyper hydrogen 4
245 gMC->DefineParticle(-1010010040, "AntiHyperhydrog4", kPTHadron, 3.931 , 1.0, 2.632e-10,"Ion", 0.0, 0, 1, 0, 0, 0, 0, 0, 4, kFALSE);
246
247//Hyper helium 4
248 gMC->DefineParticle(1010020040, "Hyperhelium4", kPTHadron, 3.929 , 2.0, 2.632e-10,"Ion", 0.0, 0, 1, 0, 0, 0, 0, 0, 4, kFALSE);
249 //Anti-Hyper helium 4
250 gMC->DefineParticle(-1010020040, "AntiHyperhelium4", kPTHadron, 3.929 , 2.0, 2.632e-10,"Ion", 0.0, 0, 1, 0, 0, 0, 0, 0, 4, kFALSE);
251
81333cca 252
253 //Lambda-Neutron
851a3884 254 gMC->DefineParticle(1010000020, "LambdaNeutron", kPTNeutron, 2.054 , 0.0, 2.632e-10,"Hadron", 0.0, 0, 1, 0, 0, 0, 0, 0, 2, kFALSE);
81333cca 255
256 //Anti-Lambda-Neutron
257 gMC->DefineParticle(-1010000020, "AntiLambdaNeutron", kPTNeutron, 2.054 , 0.0, 2.632e-10,"Hadron", 0.0, 0, 1, 0, 0, 0, 0, 0, 2, kFALSE);
258
259 //H-Dibaryon
260 gMC->DefineParticle(1020000020, "Hdibaryon", kPTNeutron, 2.21, 0.0, 2.632e-10,"Hadron", 0.0, 0, 1, 0, 0, 0, 0, 0, 2, kFALSE);
261 //Anti-H-Dibaryon
262 gMC->DefineParticle(-1020000020, "AntiHdibaryon", kPTNeutron, 2.21 , 0.0, 2.632e-10,"Hadron", 0.0, 0, 1, 0, 0, 0, 0, 0, 2, kFALSE);
263
851a3884 264 //Xi-Proton
265 gMC->DefineParticle(1030000020, "Xi0Proton", kPTHadron, 2.248 , 1.0, 1.333e-10,"Ion", 0.0, 0, 1, 0, 0, 0, 0, 0, 2, kFALSE);
266
267 //Anti-Xi-Proton
268 gMC->DefineParticle(-1030000020, "AntiXi0Proton", kPTHadron, 2.248 , 1.0, 1.333e-10,"Ion", 0.0, 0, 1, 0, 0, 0, 0, 0, 2, kFALSE);
269
270 //Lambda-Neutron-Neutron
271 gMC->DefineParticle(1010000030, "LambdaNeutronNeutron", kPTNeutron, 2.982 , 0.0, 2.632e-10,"Hadron", 0.0, 0, 1, 0, 0, 0, 0, 0, 2, kFALSE);
272
273 //Anti-Lambda-Neutron-Neutron
274 gMC->DefineParticle(-1010000030, "AntiLambdaNeutronNeutron", kPTNeutron, 2.982 , 0.0, 2.632e-10,"Hadron", 0.0, 0, 1, 0, 0, 0, 0, 0, 2, kFALSE);
275
81333cca 276
277 // Define the 2- and 3-body phase space decay for the Hyper-Triton
278 Int_t mode[6][3];
279 Float_t bratio[6];
280
281 for (Int_t kz = 0; kz < 6; kz++) {
282 bratio[kz] = 0.;
283 mode[kz][0] = 0;
284 mode[kz][1] = 0;
285 mode[kz][2] = 0;
286 }
287 bratio[0] = 50.;
288 mode[0][0] = 1000020030; // Helium3
289 mode[0][1] = -211; // negative pion
c05d75f7 290
81333cca 291 bratio[1] = 50.;
292 mode[1][0] = 1000010020; // deuteron
293 mode[1][1] = 2212; // proton
294 mode[1][2] = -211; // negative pion
295
296 gMC->SetDecayMode(1010010030,bratio,mode);
297
298
299
300 // Define the 2- and 3-body phase space decay for the Anti-Hyper-Triton
301 Int_t amode[6][3];
302 Float_t abratio[6];
303
304 for (Int_t kz = 0; kz < 6; kz++) {
305 abratio[kz] = 0.;
306 amode[kz][0] = 0;
307 amode[kz][1] = 0;
308 amode[kz][2] = 0;
309 }
310 abratio[0] = 50.;
311 amode[0][0] = -1000020030; // anti- Helium3
312 amode[0][1] = 211; // positive pion
313 abratio[1] = 50.;
314 amode[1][0] = -1000010020; // anti-deuteron
315 amode[1][1] = -2212; // anti-proton
316 amode[1][2] = 211; // positive pion
317
318 gMC->SetDecayMode(-1010010030,abratio,amode);
319
c05d75f7 320 ////// ----------Hypernuclei with Mass=4 ----------- //////////
321
322 // Define the 2- and 3-body phase space decay for the Hyper Hydrogen 4
323
324 Int_t mode3[6][3];
325 Float_t bratio3[6];
326
327 for (Int_t kz = 0; kz < 6; kz++) {
328 bratio3[kz] = 0.;
329 mode3[kz][0] = 0;
330 mode3[kz][1] = 0;
331 mode3[kz][2] = 0;
332 }
333 bratio3[0] = 50.;
334 mode3[0][0] = 1000020040; // Helium4
335 mode3[0][1] = -211; // negative pion
336
337 bratio3[1] = 50.;
338 mode3[1][0] = 1000010030; // tritium
339 mode3[1][1] = 2212; // proton
340 mode3[1][2] = -211; // negative pion
341
342 gMC->SetDecayMode(1010010040,bratio3,mode3);
343
344
345 // Define the 2- and 3-body phase space decay for the Hyper Hydrogen 4
346 Int_t amode3[6][3];
347 Float_t abratio3[6];
348
349 for (Int_t kz = 0; kz < 6; kz++) {
350 abratio3[kz] = 0.;
351 amode3[kz][0] = 0;
352 amode3[kz][1] = 0;
353 amode3[kz][2] = 0;
354 }
355 abratio3[0] = 50.;
356 amode3[0][0] = -1000020040; // anti- Helium4
357 amode3[0][1] = 211; // positive pion
358 abratio3[1] = 50.;
359 amode3[1][0] = -1000010030; // anti-tritium
360 amode3[1][1] = -2212; // anti-proton
361 amode3[1][2] = 211; // positive pion
362
363 gMC->SetDecayMode(-1010010040,abratio3,amode3);
364
365
366 // Define the 3-body phase space decay for the Hyper Helium 4
367 Int_t mode4[6][3];
368 Float_t bratio4[6];
369
370 for (Int_t kz = 0; kz < 6; kz++) {
371 bratio4[kz] = 0.;
372 mode4[kz][0] = 0;
373 mode4[kz][1] = 0;
374 mode4[kz][2] = 0;
375 }
376 bratio4[0] = 100.;
377 mode4[0][0] = 1000020030; // Helium3
378 mode4[0][1] = -211; // negative pion
379 mode4[0][2] = 2212; // proton
380
381 gMC->SetDecayMode(1010020040,bratio4,mode4);
382
383
384 // Define the 2-body phase space decay for the Anti-Hyper Helium 4
385 Int_t amode4[6][3];
386 Float_t abratio4[6];
387
388 for (Int_t kz = 0; kz < 6; kz++) {
389 abratio4[kz] = 0.;
390 amode4[kz][0] = 0;
391 amode4[kz][1] = 0;
392 amode4[kz][2] = 0;
393 }
394 abratio4[0] = 100.;
395 amode4[0][0] = -1000020030; // anti-Helium 3
396 amode4[0][1] = 211; // positive pion
397 amode4[0][2] = -2212; // anti proton
398
399 gMC->SetDecayMode(-1010020040,abratio4,amode4);
400
401
81333cca 402 // Define the 2-body phase space decay for the Lambda-neutron boundstate
403 Int_t mode1[6][3];
404 Float_t bratio1[6];
405
406 for (Int_t kz = 0; kz < 6; kz++) {
407 bratio1[kz] = 0.;
408 mode1[kz][0] = 0;
409 mode1[kz][1] = 0;
410 mode1[kz][2] = 0;
411 }
412 bratio1[0] = 100.;
413 mode1[0][0] = 1000010020; // deuteron
414 mode1[0][1] = -211; // negative pion
415
416 gMC->SetDecayMode(1010000020,bratio1,mode1);
417
418
419 // Define the 2-body phase space decay for the Anti-Lambda-neutron boundstate
420 Int_t amode1[6][3];
421 Float_t abratio1[6];
422
423 for (Int_t kz = 0; kz < 6; kz++) {
424 abratio1[kz] = 0.;
425 amode1[kz][0] = 0;
426 amode1[kz][1] = 0;
427 amode1[kz][2] = 0;
428 }
429 abratio1[0] = 100.;
430 amode1[0][0] = -1000010020; // anti-deuteron
431 amode1[0][1] = 211; // positive pion
432
433 gMC->SetDecayMode(-1010000020,abratio1,amode1);
434
435 // Define the 2-body phase space decay for the H-Dibaryon
436 Int_t mode2[6][3];
437 Float_t bratio2[6];
438
439 for (Int_t kz = 0; kz < 6; kz++) {
440 bratio2[kz] = 0.;
441 mode2[kz][0] = 0;
442 mode2[kz][1] = 0;
443 mode2[kz][2] = 0;
444 }
445 bratio2[0] = 100.;
446 mode2[0][0] = 3122; // Lambda
447 mode2[0][1] = 2212; // proton
448 mode2[0][2] = -211; // negative pion
449
450 gMC->SetDecayMode(1020000020,bratio2,mode2);
451
452 // Define the 2-body phase space decay for the Anti-H-Dibaryon
453 Int_t amode2[6][3];
454 Float_t abratio2[6];
455
456 for (Int_t kz = 0; kz < 6; kz++) {
457 abratio2[kz] = 0.;
458 amode2[kz][0] = 0;
459 amode2[kz][1] = 0;
460 amode2[kz][2] = 0;
461 }
462 abratio2[0] = 100.;
463 amode2[0][0] = -3122; // anti-deuteron
464 amode2[0][1] = -2212; // anti-proton
465 amode2[0][2] = 211; // positive pion
466
467 gMC->SetDecayMode(-1020000020,abratio2,amode2);
468
851a3884 469 // Define the 2-body phase space decay for the Xi0P
470 Int_t mode5[6][3];
471 Float_t bratio5[6];
472
473 for (Int_t kz = 0; kz < 6; kz++) {
474 bratio5[kz] = 0.;
475 mode5[kz][0] = 0;
476 mode5[kz][1] = 0;
477 mode5[kz][2] = 0;
478 }
479 bratio5[0] = 100.;
480 mode5[0][0] = 3122; // Lambda
481 mode5[0][1] = 2212; // proton
482
483 gMC->SetDecayMode(1030000020,bratio5,mode5);
484
485 // Define the 2-body phase space decay for the Anti-Xi0P
486 Int_t amode5[6][3];
487 Float_t abratio5[6];
488
489 for (Int_t kz = 0; kz < 6; kz++) {
490 abratio5[kz] = 0.;
491 amode5[kz][0] = 0;
492 amode5[kz][1] = 0;
493 amode5[kz][2] = 0;
494 }
495 abratio5[0] = 100.;
496 amode5[0][0] = -3122; // anti-Lambda
497 amode5[0][1] = -2212; // anti-proton
498
499 gMC->SetDecayMode(-1030000020,abratio5,amode5);
500
501 // Define the 2-body phase space decay for the Lambda-Neutron-Neutron
502 Int_t mode6[6][3];
503 Float_t bratio6[6];
504
505 for (Int_t kz = 0; kz < 6; kz++) {
506 bratio6[kz] = 0.;
507 mode6[kz][0] = 0;
508 mode6[kz][1] = 0;
509 mode6[kz][2] = 0;
510 }
511 bratio6[0] = 100.;
512 mode6[0][0] = 1000010030; // triton
513 mode6[0][1] = -211; // pion
514
515 gMC->SetDecayMode(1010000030,bratio6,mode6);
516
517 // Define the 2-body phase space decay for the Anti-Lambda-Neutron-Neutron
518 Int_t amode6[6][3];
519 Float_t abratio6[6];
520
521 for (Int_t kz = 0; kz < 6; kz++) {
522 abratio6[kz] = 0.;
523 amode6[kz][0] = 0;
524 amode6[kz][1] = 0;
525 amode6[kz][2] = 0;
526 }
527 abratio6[0] = 100.;
528 amode6[0][0] = -1000010030; // anti-triton
529 amode6[0][1] = 211; // pion
530
531 gMC->SetDecayMode(-1010000030,abratio6,amode6);
532
81333cca 533 // end of the example
534 // --------------------------------------------------------------------
535}
536
5d12ce38 537//_______________________________________________________________________
538void AliMC::InitGeometry()
539{
540 //
27cf3cdc 541 // Initialize detectors
5d12ce38 542 //
543
4a9de4af 544 AliInfo("Initialisation:");
545 TStopwatch stw;
546 TIter next(gAlice->Modules());
547 AliModule *detector;
548 while((detector = dynamic_cast<AliModule*>(next()))) {
549 stw.Start();
4a9de4af 550 detector->Init();
4a9de4af 551 AliInfo(Form("%10s R:%.2fs C:%.2fs",
552 detector->GetName(),stw.RealTime(),stw.CpuTime()));
553 }
4787b401 554}
555
d97f1dbe 556//_______________________________________________________________________
557void AliMC::SetGeometryFromCDB()
558{
559 // Set the loading of geometry from cdb instead of creating it
560 // A default CDB storage needs to be set before this method is called
561 if(AliCDBManager::Instance()->IsDefaultStorageSet() &&
562 AliCDBManager::Instance()->GetRun() >= 0)
563 AliSimulation::Instance()->SetGeometryFile("*OCDB*");
564 else
565 AliError("Loading of geometry from CDB ignored. First set a default CDB storage!");
566}
567
568//_______________________________________________________________________
569Bool_t AliMC::IsGeometryFromCDB() const
570{
571 return (strcmp(AliSimulation::Instance()->GetGeometryFile(),"*OCDB*")==0);
572}
573
4787b401 574//_______________________________________________________________________
575void AliMC::SetAllAlignableVolumes()
576{
577 //
578 // Add alignable volumes (TGeoPNEntries) looping on all
579 // active modules
580 //
581
582 AliInfo(Form("Setting entries for all alignable volumes of active detectors"));
583 AliModule *detector;
584 TIter next(gAlice->Modules());
585 while((detector = dynamic_cast<AliModule*>(next()))) {
586 detector->AddAlignableVolumes();
587 }
5d12ce38 588}
589
590//_______________________________________________________________________
2057aecb 591void AliMC::GeneratePrimaries()
5d12ce38 592{
593 //
594 // Generate primary particles and fill them in the stack.
595 //
596
597 Generator()->Generate();
598}
599
600//_______________________________________________________________________
601void AliMC::SetGenerator(AliGenerator *generator)
602{
603 //
604 // Load the event generator
605 //
606 if(!fGenerator) fGenerator = generator;
607}
608
609//_______________________________________________________________________
610void AliMC::ResetGenerator(AliGenerator *generator)
611{
612 //
613 // Load the event generator
614 //
9a213abc 615 if(fGenerator) {
616 if(generator) {
21bf7095 617 AliWarning(Form("Replacing generator %s with %s",
9a213abc 618 fGenerator->GetName(),generator->GetName()));
619 }
620 else {
21bf7095 621 AliWarning(Form("Replacing generator %s with NULL",
622 fGenerator->GetName()));
9a213abc 623 }
624 }
5d12ce38 625 fGenerator = generator;
626}
627
628//_______________________________________________________________________
629void AliMC::FinishRun()
630{
631 // Clean generator information
21bf7095 632 AliDebug(1, "fGenerator->FinishRun()");
5d12ce38 633 fGenerator->FinishRun();
a5fe2c41 634
635 // Monitoring information
636 if (fMonitor) {
637 fMonitor->Print();
638 fMonitor->Export("timing.root");
639 }
5d12ce38 640
641 //Output energy summary tables
21bf7095 642 AliDebug(1, "EnergySummary()");
643 ToAliDebug(1, EnergySummary());
5d12ce38 644}
645
646//_______________________________________________________________________
647void AliMC::BeginPrimary()
648{
649 //
650 // Called at the beginning of each primary track
651 //
652
653 // Reset Hits info
654 ResetHits();
655 ResetTrackReferences();
5d12ce38 656}
657
658//_______________________________________________________________________
659void AliMC::PreTrack()
660{
d0d4a6b3 661 // Actions before the track's transport
dde0a601 662
81333cca 663 //verbose.PreTrack();
664
5d12ce38 665 TObjArray &dets = *gAlice->Modules();
666 AliModule *module;
667
668 for(Int_t i=0; i<=gAlice->GetNdets(); i++)
669 if((module = dynamic_cast<AliModule*>(dets[i])))
670 module->PreTrack();
5d12ce38 671}
672
673//_______________________________________________________________________
674void AliMC::Stepping()
675{
676 //
677 // Called at every step during transport
678 //
81333cca 679 //verbose.Stepping();
680
38ca2ad6 681 Int_t id = DetFromMate(gMC->CurrentMedium());
5d12ce38 682 if (id < 0) return;
683
0561efeb 684
685 if ( gMC->IsNewTrack() &&
686 gMC->TrackTime() == 0. &&
38ca2ad6 687 fRDecayMin >= 0. &&
0561efeb 688 fRDecayMax > fRDecayMin &&
689 gMC->TrackPid() == fDecayPdg )
690 {
691 FixParticleDecaytime();
692 }
693
a5fe2c41 694 // --- If monitoring timing was requested, monitor the step
695 if (fUseMonitoring) {
696 if (!fMonitor) {
697 fMonitor = new AliTransportMonitor(gMC->NofVolumes()+1);
698 fMonitor->Start();
699 }
700 if (gMC->IsNewTrack() || gMC->TrackTime() == 0. || gMC->TrackStep()<1.1E-10) {
701 fMonitor->DummyStep();
702 } else {
703 // Normal stepping
704 Int_t copy;
705 Int_t volId = gMC->CurrentVolID(copy);
706 Int_t pdg = gMC->TrackPid();
707 TLorentzVector xyz, pxpypz;
708 gMC->TrackPosition(xyz);
709 gMC->TrackMomentum(pxpypz);
710 fMonitor->StepInfo(volId, pdg, pxpypz.E(), xyz.X(), xyz.Y(), xyz.Z());
711 }
712 }
5d12ce38 713 //
714 // --- If lego option, do it and leave
3e2e3ece 715 if (AliSimulation::Instance()->Lego())
716 AliSimulation::Instance()->Lego()->StepManager();
5d12ce38 717 else {
718 Int_t copy;
719 //Update energy deposition tables
720 AddEnergyDeposit(gMC->CurrentVolID(copy),gMC->Edep());
ab03c084 721 //
722 // write tracke reference for track which is dissapearing - MI
faad98df 723
724 if (gMC->IsTrackDisappeared() && !(gMC->IsTrackAlive())) {
725 if (gMC->Etot() > 0.05) AddTrackReference(GetCurrentTrackNumber(),
9ac3aec9 726 AliTrackReference::kDisappeared);
faad98df 727
728
b60e0f5e 729 }
faad98df 730
5d12ce38 731 //Call the appropriate stepping routine;
732 AliModule *det = dynamic_cast<AliModule*>(gAlice->Modules()->At(id));
733 if(det && det->StepManagerIsEnabled()) {
5d12ce38 734 det->StepManager();
735 }
736 }
737}
738
739//_______________________________________________________________________
740void AliMC::EnergySummary()
741{
9ac3aec9 742 //e
5d12ce38 743 // Print summary of deposited energy
744 //
745
746 Int_t ndep=0;
747 Float_t edtot=0;
748 Float_t ed, ed2;
749 Int_t kn, i, left, j, id;
750 const Float_t kzero=0;
33c3c91a 751 Int_t ievent=AliRunLoader::Instance()->GetHeader()->GetEvent()+1;
5d12ce38 752 //
753 // Energy loss information
754 if(ievent) {
755 printf("***************** Energy Loss Information per event (GEV) *****************\n");
756 for(kn=1;kn<fEventEnergy.GetSize();kn++) {
757 ed=fSummEnergy[kn];
758 if(ed>0) {
759 fEventEnergy[ndep]=kn;
760 if(ievent>1) {
761 ed=ed/ievent;
762 ed2=fSum2Energy[kn];
763 ed2=ed2/ievent;
764 ed2=100*TMath::Sqrt(TMath::Max(ed2-ed*ed,kzero))/ed;
765 } else
766 ed2=99;
767 fSummEnergy[ndep]=ed;
768 fSum2Energy[ndep]=TMath::Min(static_cast<Float_t>(99.),TMath::Max(ed2,kzero));
769 edtot+=ed;
770 ndep++;
771 }
772 }
773 for(kn=0;kn<(ndep-1)/3+1;kn++) {
774 left=ndep-kn*3;
775 for(i=0;i<(3<left?3:left);i++) {
776 j=kn*3+i;
777 id=Int_t (fEventEnergy[j]+0.1);
778 printf(" %s %10.3f +- %10.3f%%;",gMC->VolName(id),fSummEnergy[j],fSum2Energy[j]);
779 }
780 printf("\n");
781 }
782 //
783 // Relative energy loss in different detectors
784 printf("******************** Relative Energy Loss per event ********************\n");
785 printf("Total energy loss per event %10.3f GeV\n",edtot);
786 for(kn=0;kn<(ndep-1)/5+1;kn++) {
787 left=ndep-kn*5;
788 for(i=0;i<(5<left?5:left);i++) {
789 j=kn*5+i;
790 id=Int_t (fEventEnergy[j]+0.1);
791 printf(" %s %10.3f%%;",gMC->VolName(id),100*fSummEnergy[j]/edtot);
792 }
793 printf("\n");
794 }
795 for(kn=0;kn<75;kn++) printf("*");
796 printf("\n");
797 }
798 //
799 // Reset the TArray's
800 // fEventEnergy.Set(0);
801 // fSummEnergy.Set(0);
802 // fSum2Energy.Set(0);
803}
9d188d33 804#include <TFile.h>
5d12ce38 805//_____________________________________________________________________________
806void AliMC::BeginEvent()
807{
808 //
809 // Clean-up previous event
810 // Energy scores
21bf7095 811 AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>");
812 AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>");
813 AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>");
814 AliDebug(1, " BEGINNING EVENT ");
815 AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>");
816 AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>");
817 AliDebug(1, ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>");
9d188d33 818
33c3c91a 819 AliRunLoader *runloader=AliRunLoader::Instance();
5d12ce38 820
821 /*******************************/
822 /* Clean after eventual */
823 /* previous event */
824 /*******************************/
825
826
827 //Set the next event in Run Loader -> Cleans trees (TreeK and all trees in detectors),
828 gAlice->SetEventNrInRun(gAlice->GetEventNrInRun()+1);
829 runloader->SetEventNumber(gAlice->GetEventNrInRun());// sets new files, cleans the previous event stuff, if necessary, etc.,
21bf7095 830 AliDebug(1, Form("EventNr is %d",gAlice->GetEventNrInRun()));
5d12ce38 831
832 fEventEnergy.Reset();
833 // Clean detector information
834
835 if (runloader->Stack())
3cac0921 836 runloader->Stack()->Reset();//clean stack -> tree is unloaded
5d12ce38 837 else
3cac0921 838 runloader->MakeStack();//or make a new one
504b172d 839
9d188d33 840 // Random engine status
841 //
9ac3aec9 842
9d188d33 843 if ( fSaveRndmStatus || fSaveRndmEventStatus) {
844 TString fileName="random";
845 if ( fSaveRndmEventStatus ) {
846 fileName += "Evt";
847 fileName += gAlice->GetEventNrInRun();
848 }
849 fileName += ".root";
850
851 // write ROOT random engine status
852 cout << "Saving random engine status in " << fileName.Data() << endl;
853 TFile f(fileName.Data(),"RECREATE");
854 gRandom->Write(fileName.Data());
855 }
856
857 if ( fReadRndmStatus ) {
858 //read ROOT random engine status
859 cout << "Reading random engine status from " << fRndmFileName.Data() << endl;
860 TFile f(fRndmFileName.Data());
861 gRandom->Read(fRndmFileName.Data());
862 }
863
3e2e3ece 864 if(AliSimulation::Instance()->Lego() == 0x0)
3cac0921 865 {
866 AliDebug(1, "fRunLoader->MakeTree(K)");
867 runloader->MakeTree("K");
868 }
869
21bf7095 870 AliDebug(1, "gMC->SetStack(fRunLoader->Stack())");
d3b3a3b2 871 gMC->SetStack(runloader->Stack());//Was in InitMC - but was moved here
5d12ce38 872 //because we don't have guarantee that
873 //stack pointer is not going to change from event to event
874 //since it bellobgs to header and is obtained via RunLoader
875 //
876 // Reset all Detectors & kinematics & make/reset trees
877 //
878
8c8fbdcd 879 runloader->GetHeader()->Reset(AliCDBManager::Instance()->GetRun(),gAlice->GetEvNumber(),
3cac0921 880 gAlice->GetEventNrInRun());
5d12ce38 881// fRunLoader->WriteKinematics("OVERWRITE"); is there any reason to rewrite here since MakeTree does so
882
3e2e3ece 883 if(AliSimulation::Instance()->Lego())
3cac0921 884 {
3e2e3ece 885 AliSimulation::Instance()->Lego()->BeginEvent();
3cac0921 886 return;
887 }
504b172d 888
5d12ce38 889
21bf7095 890 AliDebug(1, "ResetHits()");
5d12ce38 891 ResetHits();
504b172d 892
21bf7095 893 AliDebug(1, "fRunLoader->MakeTree(H)");
5d12ce38 894 runloader->MakeTree("H");
504b172d 895
5d12ce38 896
5d12ce38 897
3cac0921 898 MakeTmpTrackRefsTree();
5d12ce38 899 //create new branches and SetAdresses
900 TIter next(gAlice->Modules());
901 AliModule *detector;
902 while((detector = (AliModule*)next()))
903 {
3cac0921 904 AliDebug(2, Form("%s->MakeBranch(H)",detector->GetName()));
905 detector->MakeBranch("H");
5d12ce38 906 }
907}
908
909//_______________________________________________________________________
910void AliMC::ResetHits()
911{
912 //
913 // Reset all Detectors hits
914 //
915 TIter next(gAlice->Modules());
916 AliModule *detector;
917 while((detector = dynamic_cast<AliModule*>(next()))) {
918 detector->ResetHits();
919 }
920}
921
3e2e3ece 922//_______________________________________________________________________
923void AliMC::ResetDigits()
924{
925 //
926 // Reset all Detectors digits
927 //
928 TIter next(gAlice->Modules());
929 AliModule *detector;
930 while((detector = dynamic_cast<AliModule*>(next()))) {
931 detector->ResetDigits();
932 }
933}
934
935//_______________________________________________________________________
936void AliMC::ResetSDigits()
937{
938 //
939 // Reset all Detectors digits
940 //
941 TIter next(gAlice->Modules());
942 AliModule *detector;
943 while((detector = dynamic_cast<AliModule*>(next()))) {
944 detector->ResetSDigits();
945 }
946}
947
5d12ce38 948//_______________________________________________________________________
949void AliMC::PostTrack()
950{
d0d4a6b3 951 // Posts tracks for each module
dde0a601 952
4a9de4af 953 TObjArray &dets = *gAlice->Modules();
954 AliModule *module;
955
956 for(Int_t i=0; i<=gAlice->GetNdets(); i++)
957 if((module = dynamic_cast<AliModule*>(dets[i])))
958 module->PostTrack();
5d12ce38 959}
960
961//_______________________________________________________________________
962void AliMC::FinishPrimary()
963{
964 //
965 // Called at the end of each primary track
966 //
dde0a601 967
33c3c91a 968 AliRunLoader *runloader=AliRunLoader::Instance();
5d12ce38 969 // static Int_t count=0;
970 // const Int_t times=10;
971 // This primary is finished, purify stack
c75cfb51 972#if ROOT_VERSION_CODE > 262152
942a9039 973 if (!(gMC->SecondariesAreOrdered())) {
77db8cbf 974 if (runloader->Stack()->ReorderKine()) RemapHits();
942a9039 975 }
c75cfb51 976#endif
77db8cbf 977 if (runloader->Stack()->PurifyKine()) RemapHits();
504b172d 978
5d12ce38 979 TIter next(gAlice->Modules());
980 AliModule *detector;
981 while((detector = dynamic_cast<AliModule*>(next()))) {
982 detector->FinishPrimary();
504b172d 983 AliLoader* loader = detector->GetLoader();
984 if(loader)
985 {
986 TTree* treeH = loader->TreeH();
987 if (treeH) treeH->Fill(); //can be Lego run and treeH can not exist
988 }
5d12ce38 989 }
990
991 // Write out track references if any
3cac0921 992 if (fTmpTreeTR) fTmpTreeTR->Fill();
5d12ce38 993}
994
942a9039 995void AliMC::RemapHits()
996{
997//
998// Remaps the track labels of the hits
33c3c91a 999 AliRunLoader *runloader=AliRunLoader::Instance();
942a9039 1000 AliStack* stack = runloader->Stack();
1001 TList* hitLists = GetHitLists();
1002 TIter next(hitLists);
1003 TCollection *hitList;
1004
1005 while((hitList = dynamic_cast<TCollection*>(next()))) {
1006 TIter nexthit(hitList);
1007 AliHit *hit;
1008 while((hit = dynamic_cast<AliHit*>(nexthit()))) {
1009 hit->SetTrack(stack->TrackLabel(hit->GetTrack()));
1010 }
1011 }
1012
1013 //
1014 // This for detectors which have a special mapping mechanism
1015 // for hits, such as TPC and TRD
1016 //
ac2b85c0 1017
942a9039 1018
1019 TObjArray* modules = gAlice->Modules();
1020 TIter nextmod(modules);
ac2b85c0 1021 AliModule *module;
1022 while((module = (AliModule*) nextmod())) {
1023 AliDetector* det = dynamic_cast<AliDetector*> (module);
1024 if (det) det->RemapTrackHitIDs(stack->TrackLabelMap());
942a9039 1025 }
1026 //
1027 RemapTrackReferencesIDs(stack->TrackLabelMap());
1028}
1029
5d12ce38 1030//_______________________________________________________________________
1031void AliMC::FinishEvent()
1032{
1033 //
1034 // Called at the end of the event.
1035 //
38ca2ad6 1036
3e2e3ece 1037 if(AliSimulation::Instance()->Lego()) AliSimulation::Instance()->Lego()->FinishEvent();
5d12ce38 1038
1039 TIter next(gAlice->Modules());
1040 AliModule *detector;
1041 while((detector = dynamic_cast<AliModule*>(next()))) {
1042 detector->FinishEvent();
1043 }
1044
1045 //Update the energy deposit tables
1046 Int_t i;
1047 for(i=0;i<fEventEnergy.GetSize();i++)
1048 {
1049 fSummEnergy[i]+=fEventEnergy[i];
1050 fSum2Energy[i]+=fEventEnergy[i]*fEventEnergy[i];
1051 }
1052
33c3c91a 1053 AliRunLoader *runloader=AliRunLoader::Instance();
5d12ce38 1054
1055 AliHeader* header = runloader->GetHeader();
1056 AliStack* stack = runloader->Stack();
1057 if ( (header == 0x0) || (stack == 0x0) )
1058 {//check if we got header and stack. If not cry and exit aliroot
21bf7095 1059 AliFatal("Can not get the stack or header from LOADER");
5d12ce38 1060 return;//never reached
1061 }
1062 // Update Header information
1063 header->SetNprimary(stack->GetNprimary());
1064 header->SetNtrack(stack->GetNtrack());
475baf89 1065 header->SetTimeStamp(AliSimulation::Instance()->GenerateTimeStamp());
5d12ce38 1066
5d12ce38 1067 // Write out the kinematics
3e2e3ece 1068 if (!AliSimulation::Instance()->Lego()) stack->FinishEvent();
3cac0921 1069
1070 // Synchronize the TreeTR with TreeK
172bc1fb 1071 if (fTmpTreeTR) ReorderAndExpandTreeTR();
5d12ce38 1072
1073 // Write out the event Header information
1074 TTree* treeE = runloader->TreeE();
1075 if (treeE)
1076 {
1077 header->SetStack(stack);
1078 treeE->Fill();
1079 }
1080 else
1081 {
21bf7095 1082 AliError("Can not get TreeE from RL");
5d12ce38 1083 }
1084
3e2e3ece 1085 if(AliSimulation::Instance()->Lego() == 0x0)
504b172d 1086 {
1087 runloader->WriteKinematics("OVERWRITE");
1088 runloader->WriteTrackRefs("OVERWRITE");
1089 runloader->WriteHits("OVERWRITE");
1090 }
1091
21bf7095 1092 AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<");
1093 AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<");
1094 AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<");
1095 AliDebug(1, " FINISHING EVENT ");
1096 AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<");
1097 AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<");
1098 AliDebug(1, "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<");
5d12ce38 1099}
1100
5d12ce38 1101//_______________________________________________________________________
1102void AliMC::Init()
1103{
d0d4a6b3 1104 // MC initialization
5d12ce38 1105
9d188d33 1106
5d12ce38 1107 //=================Create Materials and geometry
1108 gMC->Init();
4e889ff4 1109 // Set alignable volumes for the whole geometry (with old root)
1110#if ROOT_VERSION_CODE < 331527
1111 SetAllAlignableVolumes();
1112#endif
5d12ce38 1113 //Read the cuts for all materials
1114 ReadTransPar();
1115 //Build the special IMEDIA table
1116 MediaTable();
1117
1118 //Compute cross-sections
1119 gMC->BuildPhysics();
1120
5d12ce38 1121 //Initialise geometry deposition table
1122 fEventEnergy.Set(gMC->NofVolumes()+1);
1123 fSummEnergy.Set(gMC->NofVolumes()+1);
1124 fSum2Energy.Set(gMC->NofVolumes()+1);
1125
5d12ce38 1126 // Register MC in configuration
1127 AliConfig::Instance()->Add(gMC);
5d12ce38 1128}
1129
1130//_______________________________________________________________________
1131void AliMC::MediaTable()
1132{
1133 //
1134 // Built media table to get from the media number to
1135 // the detector id
1136 //
1137
1138 Int_t kz, nz, idt, lz, i, k, ind;
1139 // Int_t ibeg;
1140 TObjArray &dets = *gAlice->Detectors();
1141 AliModule *det;
1142 Int_t ndets=gAlice->GetNdets();
1143 //
1144 // For all detectors
1145 for (kz=0;kz<ndets;kz++) {
1146 // If detector is defined
1147 if((det=dynamic_cast<AliModule*>(dets[kz]))) {
1148 TArrayI &idtmed = *(det->GetIdtmed());
1149 for(nz=0;nz<100;nz++) {
0561efeb 1150
5d12ce38 1151 // Find max and min material number
1152 if((idt=idtmed[nz])) {
1153 det->LoMedium() = det->LoMedium() < idt ? det->LoMedium() : idt;
1154 det->HiMedium() = det->HiMedium() > idt ? det->HiMedium() : idt;
1155 }
1156 }
1157 if(det->LoMedium() > det->HiMedium()) {
1158 det->LoMedium() = 0;
1159 det->HiMedium() = 0;
1160 } else {
1161 if(det->HiMedium() > fImedia->GetSize()) {
21bf7095 1162 AliError(Form("Increase fImedia from %d to %d",
1163 fImedia->GetSize(),det->HiMedium()));
5d12ce38 1164 return;
1165 }
1166 // Tag all materials in rage as belonging to detector kz
1167 for(lz=det->LoMedium(); lz<= det->HiMedium(); lz++) {
1168 (*fImedia)[lz]=kz;
1169 }
1170 }
1171 }
1172 }
1173 //
1174 // Print summary table
21bf7095 1175 AliInfo("Tracking media ranges:");
1176 ToAliInfo(
5d12ce38 1177 for(i=0;i<(ndets-1)/6+1;i++) {
1178 for(k=0;k< (6<ndets-i*6?6:ndets-i*6);k++) {
1179 ind=i*6+k;
1180 det=dynamic_cast<AliModule*>(dets[ind]);
1181 if(det)
1182 printf(" %6s: %3d -> %3d;",det->GetName(),det->LoMedium(),
1183 det->HiMedium());
1184 else
1185 printf(" %6s: %3d -> %3d;","NULL",0,0);
1186 }
1187 printf("\n");
1188 }
13242232 1189 );
5d12ce38 1190}
1191
1192//_______________________________________________________________________
1193void AliMC::ReadTransPar()
1194{
1195 //
1196 // Read filename to set the transport parameters
1197 //
1198
1199
1200 const Int_t kncuts=10;
61721f6c 1201 const Int_t knflags=12;
5d12ce38 1202 const Int_t knpars=kncuts+knflags;
1203 const char kpars[knpars][7] = {"CUTGAM" ,"CUTELE","CUTNEU","CUTHAD","CUTMUO",
1204 "BCUTE","BCUTM","DCUTE","DCUTM","PPCUTM","ANNI",
1205 "BREM","COMP","DCAY","DRAY","HADR","LOSS",
61721f6c 1206 "MULS","PAIR","PHOT","RAYL","STRA"};
5d12ce38 1207 char line[256];
1208 char detName[7];
1209 char* filtmp;
1210 Float_t cut[kncuts];
1211 Int_t flag[knflags];
a5a7da11 1212 Int_t i, itmed, iret, jret, ktmed, kz;
5d12ce38 1213 FILE *lun;
1214 //
1215 // See whether the file is there
1216 filtmp=gSystem->ExpandPathName(fTransParName.Data());
1217 lun=fopen(filtmp,"r");
1218 delete [] filtmp;
1219 if(!lun) {
21bf7095 1220 AliWarning(Form("File %s does not exist!",fTransParName.Data()));
5d12ce38 1221 return;
1222 }
1223 //
5d12ce38 1224 while(1) {
1225 // Initialise cuts and flags
1226 for(i=0;i<kncuts;i++) cut[i]=-99;
1227 for(i=0;i<knflags;i++) flag[i]=-99;
1228 itmed=0;
01a0f5d0 1229 memset(line,0,256);
5d12ce38 1230 // Read up to the end of line excluded
01a0f5d0 1231 iret=fscanf(lun,"%255[^\n]",line);
5d12ce38 1232 if(iret<0) {
1233 //End of file
1234 fclose(lun);
5d12ce38 1235 return;
1236 }
1237 // Read the end of line
a5a7da11 1238 jret = fscanf(lun,"%*c");
5d12ce38 1239 if(!iret) continue;
1240 if(line[0]=='*') continue;
1241 // Read the numbers
e6585570 1242 iret=sscanf(line,"%6s %d %f %f %f %f %f %f %f %f %f %f %d %d %d %d %d %d %d %d %d %d %d %d",
5d12ce38 1243 detName,&itmed,&cut[0],&cut[1],&cut[2],&cut[3],&cut[4],&cut[5],&cut[6],&cut[7],&cut[8],
1244 &cut[9],&flag[0],&flag[1],&flag[2],&flag[3],&flag[4],&flag[5],&flag[6],&flag[7],
61721f6c 1245 &flag[8],&flag[9],&flag[10],&flag[11]);
5d12ce38 1246 if(!iret) continue;
1247 if(iret<0) {
1248 //reading error
21bf7095 1249 AliWarning(Form("Error reading file %s",fTransParName.Data()));
5d12ce38 1250 continue;
1251 }
1252 // Check that the module exist
1253 AliModule *mod = gAlice->GetModule(detName);
1254 if(mod) {
1255 // Get the array of media numbers
1256 TArrayI &idtmed = *mod->GetIdtmed();
1257 // Check that the tracking medium code is valid
1258 if(0<=itmed && itmed < 100) {
1259 ktmed=idtmed[itmed];
1260 if(!ktmed) {
21bf7095 1261 AliWarning(Form("Invalid tracking medium code %d for %s",itmed,mod->GetName()));
5d12ce38 1262 continue;
1263 }
1264 // Set energy thresholds
1265 for(kz=0;kz<kncuts;kz++) {
1266 if(cut[kz]>=0) {
21bf7095 1267 AliDebug(2, Form("%-6s set to %10.3E for tracking medium code %4d for %s",
1268 kpars[kz],cut[kz],itmed,mod->GetName()));
5d12ce38 1269 gMC->Gstpar(ktmed,kpars[kz],cut[kz]);
1270 }
1271 }
1272 // Set transport mechanisms
1273 for(kz=0;kz<knflags;kz++) {
1274 if(flag[kz]>=0) {
21bf7095 1275 AliDebug(2, Form("%-6s set to %10d for tracking medium code %4d for %s",
1276 kpars[kncuts+kz],flag[kz],itmed,mod->GetName()));
5d12ce38 1277 gMC->Gstpar(ktmed,kpars[kncuts+kz],Float_t(flag[kz]));
1278 }
1279 }
1280 } else {
21bf7095 1281 AliWarning(Form("Invalid medium code %d",itmed));
5d12ce38 1282 continue;
1283 }
1284 } else {
21bf7095 1285 AliDebug(1, Form("%s not present",detName));
5d12ce38 1286 continue;
1287 }
1288 }
1289}
1290
1291//_______________________________________________________________________
1292void AliMC::SetTransPar(const char *filename)
1293{
1294 //
1295 // Sets the file name for transport parameters
1296 //
1297 fTransParName = filename;
1298}
1299
5d12ce38 1300//_______________________________________________________________________
1301void AliMC::AddHit(Int_t id, Int_t track, Int_t *vol, Float_t *hits) const
1302{
1303 //
1304 // Add a hit to detector id
1305 //
1306 TObjArray &dets = *gAlice->Modules();
1c9a8216 1307 if(dets[id]) static_cast<AliModule*>(dets[id])->AddHit(track,vol,hits);
5d12ce38 1308}
1309
1310//_______________________________________________________________________
1311void AliMC::AddDigit(Int_t id, Int_t *tracks, Int_t *digits) const
1312{
1313 //
1314 // Add digit to detector id
1315 //
1316 TObjArray &dets = *gAlice->Modules();
1c9a8216 1317 if(dets[id]) static_cast<AliModule*>(dets[id])->AddDigit(tracks,digits);
5d12ce38 1318}
1319
1320//_______________________________________________________________________
1321Int_t AliMC::GetCurrentTrackNumber() const {
1322 //
1323 // Returns current track
1324 //
33c3c91a 1325 return AliRunLoader::Instance()->Stack()->GetCurrentTrackNumber();
5d12ce38 1326}
1327
1328//_______________________________________________________________________
1329void AliMC::DumpPart (Int_t i) const
1330{
1331 //
1332 // Dumps particle i in the stack
1333 //
33c3c91a 1334 AliRunLoader * runloader = AliRunLoader::Instance();
5d12ce38 1335 if (runloader->Stack())
1336 runloader->Stack()->DumpPart(i);
1337}
1338
1339//_______________________________________________________________________
1340void AliMC::DumpPStack () const
1341{
1342 //
1343 // Dumps the particle stack
1344 //
33c3c91a 1345 AliRunLoader * runloader = AliRunLoader::Instance();
5d12ce38 1346 if (runloader->Stack())
1347 runloader->Stack()->DumpPStack();
1348}
1349
1350//_______________________________________________________________________
1351Int_t AliMC::GetNtrack() const {
1352 //
1353 // Returns number of tracks in stack
1354 //
1355 Int_t ntracks = -1;
33c3c91a 1356 AliRunLoader * runloader = AliRunLoader::Instance();
5d12ce38 1357 if (runloader->Stack())
1358 ntracks = runloader->Stack()->GetNtrack();
1359 return ntracks;
1360}
1361
1362//_______________________________________________________________________
1363Int_t AliMC::GetPrimary(Int_t track) const
1364{
1365 //
1366 // return number of primary that has generated track
1367 //
1368 Int_t nprimary = -999;
33c3c91a 1369 AliRunLoader * runloader = AliRunLoader::Instance();
5d12ce38 1370 if (runloader->Stack())
1371 nprimary = runloader->Stack()->GetPrimary(track);
1372 return nprimary;
1373}
1374
1375//_______________________________________________________________________
1376TParticle* AliMC::Particle(Int_t i) const
1377{
d0d4a6b3 1378 // Returns the i-th particle from the stack taking into account
1379 // the remaping done by PurifyKine
33c3c91a 1380 AliRunLoader * runloader = AliRunLoader::Instance();
5d12ce38 1381 if (runloader)
1382 if (runloader->Stack())
1383 return runloader->Stack()->Particle(i);
1384 return 0x0;
1385}
1386
1387//_______________________________________________________________________
6c753956 1388const TObjArray* AliMC::Particles() const {
5d12ce38 1389 //
1390 // Returns pointer to Particles array
1391 //
33c3c91a 1392 AliRunLoader * runloader = AliRunLoader::Instance();
5d12ce38 1393 if (runloader)
1394 if (runloader->Stack())
1395 return runloader->Stack()->Particles();
1396 return 0x0;
1397}
1398
1399//_______________________________________________________________________
3e2e3ece 1400void AliMC::PushTrack(Int_t done, Int_t parent, Int_t pdg, const Float_t *pmom,
1401 const Float_t *vpos, const Float_t *polar, Float_t tof,
2057aecb 1402 TMCProcess mech, Int_t &ntr, Float_t weight, Int_t is) const
5d12ce38 1403{
1404// Delegate to stack
1405//
33c3c91a 1406 AliRunLoader * runloader = AliRunLoader::Instance();
5d12ce38 1407 if (runloader)
1408 if (runloader->Stack())
1409 runloader->Stack()->PushTrack(done, parent, pdg, pmom, vpos, polar, tof,
1410 mech, ntr, weight, is);
1411}
1412
1413//_______________________________________________________________________
1414void AliMC::PushTrack(Int_t done, Int_t parent, Int_t pdg,
1415 Double_t px, Double_t py, Double_t pz, Double_t e,
1416 Double_t vx, Double_t vy, Double_t vz, Double_t tof,
1417 Double_t polx, Double_t poly, Double_t polz,
2057aecb 1418 TMCProcess mech, Int_t &ntr, Float_t weight, Int_t is) const
5d12ce38 1419{
1420 // Delegate to stack
1421 //
33c3c91a 1422 AliRunLoader * runloader = AliRunLoader::Instance();
5d12ce38 1423 if (runloader)
1424 if (runloader->Stack())
1425 runloader->Stack()->PushTrack(done, parent, pdg, px, py, pz, e, vx, vy, vz, tof,
1426 polx, poly, polz, mech, ntr, weight, is);
1427}
1428
1429//_______________________________________________________________________
2057aecb 1430void AliMC::SetHighWaterMark(Int_t nt) const
5d12ce38 1431{
1432 //
1433 // Set high water mark for last track in event
33c3c91a 1434 AliRunLoader * runloader = AliRunLoader::Instance();
5d12ce38 1435 if (runloader)
1436 if (runloader->Stack())
1437 runloader->Stack()->SetHighWaterMark(nt);
1438}
1439
1440//_______________________________________________________________________
2057aecb 1441void AliMC::KeepTrack(Int_t track) const
5d12ce38 1442{
1443 //
1444 // Delegate to stack
1445 //
33c3c91a 1446 AliRunLoader * runloader = AliRunLoader::Instance();
5d12ce38 1447 if (runloader)
1448 if (runloader->Stack())
1449 runloader->Stack()->KeepTrack(track);
1450}
1451
1452//_______________________________________________________________________
2057aecb 1453void AliMC::FlagTrack(Int_t track) const
5d12ce38 1454{
1455 // Delegate to stack
1456 //
33c3c91a 1457 AliRunLoader * runloader = AliRunLoader::Instance();
5d12ce38 1458 if (runloader)
1459 if (runloader->Stack())
1460 runloader->Stack()->FlagTrack(track);
1461}
1462
1463//_______________________________________________________________________
2057aecb 1464void AliMC::SetCurrentTrack(Int_t track) const
5d12ce38 1465{
1466 //
1467 // Set current track number
1468 //
33c3c91a 1469 AliRunLoader * runloader = AliRunLoader::Instance();
5d12ce38 1470 if (runloader)
1471 if (runloader->Stack())
1472 runloader->Stack()->SetCurrentTrack(track);
1473}
1474
1475//_______________________________________________________________________
9ac3aec9 1476AliTrackReference* AliMC::AddTrackReference(Int_t label, Int_t id)
1477{
5d12ce38 1478 //
1479 // add a trackrefernce to the list
9ac3aec9 1480 Int_t primary = GetPrimary(label);
1481 Particle(primary)->SetBit(kKeepBit);
1482
fd650020 1483 Int_t nref = fTmpTrackReferences.GetEntriesFast();
1484 return new(fTmpTrackReferences[nref]) AliTrackReference(label, id);
5d12ce38 1485}
1486
1487
1488
1489//_______________________________________________________________________
1490void AliMC::ResetTrackReferences()
1491{
1492 //
1493 // Reset all references
1494 //
fd650020 1495 fTmpTrackReferences.Clear();
5d12ce38 1496}
1497
dde0a601 1498//_______________________________________________________________________
6da30991 1499void AliMC::RemapTrackReferencesIDs(const Int_t *map)
5d12ce38 1500{
1501 //
1502 // Remapping track reference
1503 // Called at finish primary
1504 //
fd650020 1505
1506 Int_t nEntries = fTmpTrackReferences.GetEntries();
4e490a96 1507 for (Int_t i=0; i < nEntries; i++){
fd650020 1508 AliTrackReference * ref = dynamic_cast<AliTrackReference*>(fTmpTrackReferences.UncheckedAt(i));
4e490a96 1509 if (ref) {
1510 Int_t newID = map[ref->GetTrack()];
1511 if (newID>=0) ref->SetTrack(newID);
1512 else {
1513 ref->SetBit(kNotDeleted,kFALSE);
fd650020 1514 fTmpTrackReferences.RemoveAt(i);
4e490a96 1515 }
1516 } // if ref
5d12ce38 1517 }
fd650020 1518 fTmpTrackReferences.Compress();
5d12ce38 1519}
0561efeb 1520
dde0a601 1521//_______________________________________________________________________
0561efeb 1522void AliMC::FixParticleDecaytime()
1523{
1524 //
1525 // Fix the particle decay time according to rmin and rmax for decays
1526 //
1527
1528 TLorentzVector p;
1529 gMC->TrackMomentum(p);
1530 Double_t tmin, tmax;
1531 Double_t b;
1532
1533 // Transverse velocity
1534 Double_t vt = p.Pt() / p.E();
1535
f7a1cc68 1536 if ((b = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->SolenoidField()) > 0.) { // [kG]
0561efeb 1537
1538 // Radius of helix
1539
1540 Double_t rho = p.Pt() / 0.0003 / b; // [cm]
1541
1542 // Revolution frequency
1543
1544 Double_t omega = vt / rho;
1545
1546 // Maximum and minimum decay time
1547 //
1548 // Check for curlers first
bfd20868 1549 const Double_t kOvRhoSqr2 = 1./(rho*TMath::Sqrt(2.));
1550 if (fRDecayMax * kOvRhoSqr2 > 1.) return;
0561efeb 1551
1552 //
1553
bfd20868 1554 tmax = TMath::ACos((1.-fRDecayMax*kOvRhoSqr2)*(1.+fRDecayMax*kOvRhoSqr2)) / omega; // [ct]
ec29d701 1555 tmin = TMath::ACos((1.-fRDecayMin*kOvRhoSqr2)*(1.+fRDecayMin*kOvRhoSqr2)) / omega; // [ct]
0561efeb 1556 } else {
1557 tmax = fRDecayMax / vt; // [ct]
1558 tmin = fRDecayMin / vt; // [ct]
1559 }
1560
1561 //
1562 // Dial t using the two limits
1563 Double_t t = tmin + (tmax - tmin) * gRandom->Rndm(); // [ct]
1564 //
1565 //
1566 // Force decay time in transport code
1567 //
fa7ca4da 1568 gMC->ForceDecayTime(t / 2.99792458e10);
0561efeb 1569}
3cac0921 1570
1571void AliMC::MakeTmpTrackRefsTree()
1572{
1573 // Make the temporary track reference tree
1574 fTmpFileTR = new TFile("TrackRefsTmp.root", "recreate");
1575 fTmpTreeTR = new TTree("TreeTR", "Track References");
fd650020 1576 TClonesArray* pRef = &fTmpTrackReferences;
fda9d714 1577 fTmpTreeTR->Branch("TrackReferences", &pRef, 4000);
3cac0921 1578}
1579
dde0a601 1580//_______________________________________________________________________
3cac0921 1581void AliMC::ReorderAndExpandTreeTR()
1582{
1583//
1584// Reorder and expand the temporary track reference tree in order to match the kinematics tree
1585//
1586
33c3c91a 1587 AliRunLoader *rl = AliRunLoader::Instance();
3cac0921 1588//
1589// TreeTR
1590 AliDebug(1, "fRunLoader->MakeTrackRefsContainer()");
1591 rl->MakeTrackRefsContainer();
1592 TTree * treeTR = rl->TreeTR();
3cac0921 1593 // make branch for central track references
fd650020 1594 TClonesArray* pRef = &fTrackReferences;
7275b148 1595 treeTR->Branch("TrackReferences", &pRef);
3cac0921 1596
1597 AliStack* stack = rl->Stack();
1598 Int_t np = stack->GetNprimary();
1599 Int_t nt = fTmpTreeTR->GetEntries();
3cac0921 1600 //
1601 // Loop over tracks and find the secondaries with the help of the kine tree
5ce21fc4 1602 Int_t ifills = 0;
1603 Int_t it = 0;
1604 for (Int_t ip = np - 1; ip > -1; ip--) {
1605 TParticle *part = stack->Particle(ip);
5a9cf418 1606 //printf("Particle %5d %5d %5d %5d %5d \n", ip, part->GetPdgCode(), part->GetFirstMother(), part->GetFirstDaughter(), part->GetLastDaughter());
2c4e7c77 1607
5ce21fc4 1608 // Skip primaries that have not been transported
3cac0921 1609 Int_t dau1 = part->GetFirstDaughter();
1610 Int_t dau2 = -1;
f4414561 1611 if (!part->TestBit(kTransportBit)) continue;
5ce21fc4 1612 //
1613 fTmpTreeTR->GetEntry(it++);
fd650020 1614 Int_t nh = fTmpTrackReferences.GetEntries();
5ce21fc4 1615 // Determine range of secondaries produced by this primary
3cac0921 1616 if (dau1 > -1) {
5ce21fc4 1617 Int_t inext = ip - 1;
3cac0921 1618 while (dau2 < 0) {
1619 if (inext >= 0) {
1620 part = stack->Particle(inext);
5ce21fc4 1621 dau2 = part->GetFirstDaughter();
5a9cf418 1622 if (!(part->TestBit(kTransportBit)) || dau2 == -1 || dau2 < np) {
1623// if (dau2 == -1 || dau2 < np) {
5ce21fc4 1624 dau2 = -1;
1625 } else {
1626 dau2--;
1627 }
3cac0921 1628 } else {
1629 dau2 = stack->GetNtrack() - 1;
1630 }
1631 inext--;
5ce21fc4 1632 } // find upper bound
1633 } // dau2 < 0
2c4e7c77 1634// printf("Check (1) %5d %5d %5d %5d %5d \n", ip, np, it, dau1, dau2);
3cac0921 1635 //
1636 // Loop over reference hits and find secondary label
1637 for (Int_t id = dau1; (id <= dau2) && (dau1 > -1); id++) {
1638 for (Int_t ih = 0; ih < nh; ih++) {
fd650020 1639 AliTrackReference* tr = (AliTrackReference*) fTmpTrackReferences.At(ih);
3cac0921 1640 Int_t label = tr->Label();
5ce21fc4 1641 // Skip primaries
1642 if (label == ip) continue;
2c4e7c77 1643 if (label > dau2 || label < dau1)
1644 AliWarning(Form("Track Reference Label out of range !: %5d %5d %5d \n", label, dau1, dau2));
3cac0921 1645 if (label == id) {
1646 // secondary found
fd650020 1647 Int_t nref = fTrackReferences.GetEntriesFast();
1648 new(fTrackReferences[nref]) AliTrackReference(*tr);
3cac0921 1649 }
1650 } // hits
1651 treeTR->Fill();
fd650020 1652 fTrackReferences.Clear();
5ce21fc4 1653 ifills++;
3cac0921 1654 } // daughters
1655 } // tracks
3cac0921 1656 //
1657 // Now loop again and write the primaries
5ce21fc4 1658 it = nt - 1;
1659 for (Int_t ip = 0; ip < np; ip++) {
1660 TParticle* part = stack->Particle(ip);
f4414561 1661// if ((part->GetFirstDaughter() == -1 && part->GetStatusCode() <= 1) || part->GetFirstDaughter() >= np)
c226988d 1662 if (part->TestBit(kTransportBit))
f4414561 1663 {
5ce21fc4 1664 // Skip particles that have not been transported
1665 fTmpTreeTR->GetEntry(it--);
fd650020 1666 Int_t nh = fTmpTrackReferences.GetEntries();
5ce21fc4 1667 //
1668 // Loop over reference hits and find primary labels
1669 for (Int_t ih = 0; ih < nh; ih++) {
fd650020 1670 AliTrackReference* tr = (AliTrackReference*) fTmpTrackReferences.At(ih);
5ce21fc4 1671 Int_t label = tr->Label();
1672 if (label == ip) {
fd650020 1673 Int_t nref = fTrackReferences.GetEntriesFast();
1674 new(fTrackReferences[nref]) AliTrackReference(*tr);
5ce21fc4 1675 }
1676 }
3cac0921 1677 }
1678 treeTR->Fill();
fd650020 1679 fTrackReferences.Clear();
5ce21fc4 1680 ifills++;
3cac0921 1681 } // tracks
5ce21fc4 1682 // Check
1683 if (ifills != stack->GetNtrack())
1684 AliWarning(Form("Number of entries in TreeTR (%5d) unequal to TreeK (%5d) \n", ifills, stack->GetNtrack()));
3cac0921 1685//
1686// Clean-up
1687 delete fTmpTreeTR;
1688 fTmpFileTR->Close();
1689 delete fTmpFileTR;
fd650020 1690 fTmpTrackReferences.Clear();
3cac0921 1691 gSystem->Exec("rm -rf TrackRefsTmp.root");
1692}
1693