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b8dc484b | 1 | /************************************************************************** |
48217459 | 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 | **************************************************************************/ | |
b8dc484b | 15 | |
d19b6003 | 16 | /* $Id$ */ |
17 | ||
3d1463c8 | 18 | //----------------------------------------------------------------------------- |
5398f946 | 19 | /// \class AliMUONRecoCheck |
78649106 | 20 | /// Utility class to check reconstruction |
5398f946 | 21 | /// Reconstructed tracks are compared to reference tracks. |
22 | /// The reference tracks are built from AliTrackReference for the | |
23 | /// hit in chamber (0..9) and from kinematics for the vertex parameters. | |
3d1463c8 | 24 | //----------------------------------------------------------------------------- |
b8dc484b | 25 | |
9bdda5f6 | 26 | // 13 Nov 2007: |
27 | // Added a method to create a list of reconstructed AliMUONTrack objects from | |
28 | // ESD data. This is necessary since the track objects that are actually created | |
29 | // during offline reconstruction are no longer stored to disk. | |
30 | // - Artur Szostak <artursz@iafrica.com> | |
103e6575 | 31 | // 25 Jan 2008: |
32 | // Use the new ESDInterface to create MUON objects from ESD data | |
33 | // - Philippe Pillot | |
9bdda5f6 | 34 | |
cc056de1 | 35 | #include "AliMUONRecoCheck.h" |
36 | #include "AliMUONTrack.h" | |
103e6575 | 37 | #include "AliMUONVTrackStore.h" |
38 | #include "AliMUONVCluster.h" | |
39 | #include "AliMUONVClusterStore.h" | |
cc056de1 | 40 | #include "AliMUONConstants.h" |
103e6575 | 41 | #include "AliMUONESDInterface.h" |
a0dc65b4 | 42 | #include "AliMUONRecoParam.h" |
96ebe67e | 43 | #include "AliMCEventHandler.h" |
44 | #include "AliMCEvent.h" | |
b8dc484b | 45 | #include "AliStack.h" |
cc056de1 | 46 | #include "AliTrackReference.h" |
9bdda5f6 | 47 | #include "AliLog.h" |
48 | #include "AliESDEvent.h" | |
49 | #include "AliESDMuonTrack.h" | |
96ebe67e | 50 | |
61fed964 | 51 | #include <TFile.h> |
52 | #include <TTree.h> | |
cc056de1 | 53 | #include <TParticle.h> |
5b1afea0 | 54 | #include <TParticlePDG.h> |
96ebe67e | 55 | #include <Riostream.h> |
56 | ||
5398f946 | 57 | /// \cond CLASSIMP |
b8dc484b | 58 | ClassImp(AliMUONRecoCheck) |
5398f946 | 59 | /// \endcond |
b8dc484b | 60 | |
068e4c36 | 61 | //_____________________________________________________________________________ |
a0dc65b4 | 62 | AliMUONRecoCheck::AliMUONRecoCheck(AliMUONRecoParam* recoParam, Char_t *esdFileName, Char_t *pathSim) |
48217459 | 63 | : TObject(), |
a0dc65b4 | 64 | fRecoParam(recoParam), |
96ebe67e | 65 | fMCEventHandler(new AliMCEventHandler()), |
61fed964 | 66 | fESDEvent(new AliESDEvent()), |
67 | fESDTree (0x0), | |
68 | fESDFile (0x0), | |
96ebe67e | 69 | fCurrentEvent(0), |
70 | fTrackRefStore(0x0), | |
71 | fRecoTrackRefStore(0x0), | |
72 | fRecoTrackStore(0x0) | |
068e4c36 | 73 | { |
48217459 | 74 | /// Normal ctor |
61fed964 | 75 | |
76 | // TrackRefs and Particules | |
96ebe67e | 77 | fMCEventHandler->SetInputPath(pathSim); |
78 | fMCEventHandler->InitIO(""); | |
61fed964 | 79 | |
80 | // ESD MUON Tracks | |
81 | fESDFile = TFile::Open(esdFileName); // open the file | |
82 | if (!fESDFile || !fESDFile->IsOpen()) { | |
83 | AliError(Form("opening ESD file %s failed", esdFileName)); | |
84 | fESDFile = 0x0; | |
85 | return; | |
86 | } | |
87 | fESDTree = (TTree*) fESDFile->Get("esdTree"); // get the tree | |
88 | if (!fESDTree) { | |
89 | AliError("no ESD tree found"); | |
90 | fESDFile->Close(); | |
91 | fESDFile = 0x0; | |
92 | return; | |
93 | } | |
94 | fESDEvent->ReadFromTree(fESDTree); // link fESDEvent to the tree | |
068e4c36 | 95 | } |
96 | ||
b8dc484b | 97 | //_____________________________________________________________________________ |
48217459 | 98 | AliMUONRecoCheck::~AliMUONRecoCheck() |
b8dc484b | 99 | { |
48217459 | 100 | /// Destructor |
96ebe67e | 101 | delete fMCEventHandler; |
61fed964 | 102 | delete fESDEvent; |
103 | if (fESDFile) fESDFile->Close(); | |
96ebe67e | 104 | ResetStores(); |
105 | } | |
106 | ||
107 | //_____________________________________________________________________________ | |
108 | void AliMUONRecoCheck::ResetStores() | |
109 | { | |
110 | /// Deletes all the store objects that have been created and resets the pointers to 0x0 | |
111 | delete fTrackRefStore; fTrackRefStore = 0x0; | |
112 | delete fRecoTrackRefStore; fRecoTrackRefStore = 0x0; | |
113 | delete fRecoTrackStore; fRecoTrackStore = 0x0; | |
114 | } | |
115 | ||
116 | //_____________________________________________________________________________ | |
117 | Int_t AliMUONRecoCheck::NumberOfEvents() const | |
118 | { | |
119 | /// Return the number of events | |
61fed964 | 120 | if (fESDTree) return fESDTree->GetEntries(); |
96ebe67e | 121 | return 0; |
b8dc484b | 122 | } |
123 | ||
48217459 | 124 | //_____________________________________________________________________________ |
96ebe67e | 125 | AliMUONVTrackStore* AliMUONRecoCheck::ReconstructedTracks(Int_t event) |
48217459 | 126 | { |
61fed964 | 127 | /// Return a track store containing the reconstructed tracks (converted into |
128 | /// MUONTrack objects) for a given event | |
96ebe67e | 129 | if (event != fCurrentEvent) { |
130 | ResetStores(); | |
131 | fCurrentEvent = event; | |
132 | } | |
133 | ||
134 | if (fRecoTrackStore != 0x0) return fRecoTrackStore; | |
61fed964 | 135 | else { |
136 | if (!fESDTree) return 0x0; | |
137 | if (fESDTree->GetEvent(event) <= 0) { | |
138 | AliError(Form("fails to read ESD object for event %d", event)); | |
139 | return 0x0; | |
9bdda5f6 | 140 | } |
61fed964 | 141 | MakeReconstructedTracks(); |
142 | return fRecoTrackStore; | |
9bdda5f6 | 143 | } |
9bdda5f6 | 144 | } |
145 | ||
146 | //_____________________________________________________________________________ | |
96ebe67e | 147 | AliMUONVTrackStore* AliMUONRecoCheck::TrackRefs(Int_t event) |
b8dc484b | 148 | { |
48217459 | 149 | /// Return a track store containing the track references (converted into |
150 | /// MUONTrack objects) for a given event | |
96ebe67e | 151 | if (event != fCurrentEvent) { |
152 | ResetStores(); | |
153 | fCurrentEvent = event; | |
154 | } | |
155 | ||
156 | if (fTrackRefStore != 0x0) return fTrackRefStore; | |
157 | else { | |
61fed964 | 158 | if (!fMCEventHandler->GetEvent(event)) { |
159 | AliError(Form("fails to read MC objects for event %d", event)); | |
160 | return 0x0; | |
161 | } | |
96ebe67e | 162 | MakeTrackRefs(); |
163 | return fTrackRefStore; | |
164 | } | |
b8dc484b | 165 | } |
166 | ||
167 | //_____________________________________________________________________________ | |
96ebe67e | 168 | AliMUONVTrackStore* AliMUONRecoCheck::ReconstructibleTracks(Int_t event) |
b8dc484b | 169 | { |
48217459 | 170 | /// Return a track store containing the reconstructible tracks for a given event |
96ebe67e | 171 | if (event != fCurrentEvent) { |
172 | ResetStores(); | |
173 | fCurrentEvent = event; | |
174 | } | |
175 | ||
176 | if (fRecoTrackRefStore != 0x0) return fRecoTrackRefStore; | |
177 | else { | |
178 | if (TrackRefs(event) == 0x0) return 0x0; | |
179 | MakeReconstructibleTracks(); | |
180 | return fRecoTrackRefStore; | |
181 | } | |
48217459 | 182 | } |
b8dc484b | 183 | |
61fed964 | 184 | //_____________________________________________________________________________ |
185 | void AliMUONRecoCheck::MakeReconstructedTracks() | |
186 | { | |
187 | /// Make reconstructed tracks | |
103e6575 | 188 | if (!(fRecoTrackStore = AliMUONESDInterface::NewTrackStore())) return; |
61fed964 | 189 | |
b1fea02e | 190 | // loop over all reconstructed tracks and add them to the store (skip ghosts) |
103e6575 | 191 | Int_t nTracks = (Int_t) fESDEvent->GetNumberOfMuonTracks(); |
b1fea02e | 192 | for (Int_t iTrack = 0; iTrack < nTracks; iTrack++) { |
193 | AliESDMuonTrack* esdTrack = fESDEvent->GetMuonTrack(iTrack); | |
a0dc65b4 | 194 | if (esdTrack->ContainTrackerData()) AliMUONESDInterface::Add(GetRecoParam(),*esdTrack, *fRecoTrackStore); |
b1fea02e | 195 | } |
61fed964 | 196 | |
197 | } | |
198 | ||
48217459 | 199 | //_____________________________________________________________________________ |
96ebe67e | 200 | void AliMUONRecoCheck::MakeTrackRefs() |
48217459 | 201 | { |
202 | /// Make reconstructible tracks | |
103e6575 | 203 | AliMUONVTrackStore *tmpTrackRefStore = AliMUONESDInterface::NewTrackStore(); |
204 | if (!tmpTrackRefStore) return; | |
48217459 | 205 | |
96ebe67e | 206 | Double_t x, y, z, pX, pY, pZ, bendingSlope, nonBendingSlope, inverseBendingMomentum; |
207 | TParticle* particle; | |
208 | TClonesArray* trackRefs; | |
209 | Int_t nTrackRef = fMCEventHandler->MCEvent()->GetNumberOfTracks(); | |
103e6575 | 210 | AliMUONVClusterStore* cStore = AliMUONESDInterface::NewClusterStore(); |
211 | if (!cStore) return; | |
212 | AliMUONVCluster* hit = cStore->CreateCluster(0,0,0); | |
b8dc484b | 213 | |
96ebe67e | 214 | // loop over simulated tracks |
215 | for (Int_t iTrackRef = 0; iTrackRef < nTrackRef; ++iTrackRef) { | |
216 | Int_t nHits = fMCEventHandler->GetParticleAndTR(iTrackRef, particle, trackRefs); | |
48217459 | 217 | |
96ebe67e | 218 | // skip empty trackRefs |
219 | if (nHits < 1) continue; | |
220 | ||
61fed964 | 221 | // get the particle charge for further calculation |
222 | TParticlePDG* ppdg = particle->GetPDG(); | |
46df197d | 223 | Int_t charge = ppdg != NULL ? (Int_t)(ppdg->Charge()/3.0) : 0; |
96ebe67e | 224 | |
61fed964 | 225 | AliMUONTrack track; |
48217459 | 226 | |
96ebe67e | 227 | // loop over simulated track hits |
228 | for (Int_t iHit = 0; iHit < nHits; ++iHit) { | |
229 | AliTrackReference* trackReference = static_cast<AliTrackReference*>(trackRefs->UncheckedAt(iHit)); | |
068e4c36 | 230 | |
61fed964 | 231 | // skip trackRefs not in MUON |
232 | if (trackReference->DetectorId() != AliTrackReference::kMUON) continue; | |
233 | ||
96ebe67e | 234 | // Get track parameters of current hit |
235 | x = trackReference->X(); | |
236 | y = trackReference->Y(); | |
237 | z = trackReference->Z(); | |
238 | pX = trackReference->Px(); | |
239 | pY = trackReference->Py(); | |
240 | pZ = trackReference->Pz(); | |
b8dc484b | 241 | |
96ebe67e | 242 | // check chamberId of current trackReference |
243 | Int_t chamberId = AliMUONConstants::ChamberNumber(z); | |
244 | if (chamberId < 0 || chamberId >= AliMUONConstants::NTrackingCh()) continue; | |
48217459 | 245 | |
96ebe67e | 246 | // set hit parameters |
103e6575 | 247 | hit->SetUniqueID(AliMUONVCluster::BuildUniqueID(chamberId, 0, 0)); |
248 | hit->SetXYZ(x,y,z); | |
249 | hit->SetErrXY(0.,0.); | |
b8dc484b | 250 | |
96ebe67e | 251 | // compute track parameters at hit |
7cdc832b | 252 | bendingSlope = 0; |
253 | nonBendingSlope = 0; | |
254 | inverseBendingMomentum = 0; | |
96ebe67e | 255 | if (TMath::Abs(pZ) > 0) { |
256 | bendingSlope = pY/pZ; | |
257 | nonBendingSlope = pX/pZ; | |
b8dc484b | 258 | } |
96ebe67e | 259 | Double_t pYZ = TMath::Sqrt(pY*pY+pZ*pZ); |
260 | if (pYZ >0) inverseBendingMomentum = 1/pYZ; | |
261 | inverseBendingMomentum *= charge; | |
262 | ||
263 | // set track parameters at hit | |
264 | AliMUONTrackParam trackParam; | |
265 | trackParam.SetNonBendingCoor(x); | |
266 | trackParam.SetBendingCoor(y); | |
267 | trackParam.SetZ(z); | |
268 | trackParam.SetBendingSlope(bendingSlope); | |
269 | trackParam.SetNonBendingSlope(nonBendingSlope); | |
270 | trackParam.SetInverseBendingMomentum(inverseBendingMomentum); | |
271 | ||
272 | // add track parameters at current hit to the track | |
103e6575 | 273 | track.AddTrackParamAtCluster(trackParam, *hit, kTRUE); |
96ebe67e | 274 | } |
275 | ||
61fed964 | 276 | // if none of the track hits was in MUON, goto the next track |
277 | if (track.GetNClusters() < 1) continue; | |
278 | ||
279 | // get track parameters at particle's vertex | |
280 | x = particle->Vx(); | |
281 | y = particle->Vy(); | |
282 | z = particle->Vz(); | |
283 | pX = particle->Px(); | |
284 | pY = particle->Py(); | |
285 | pZ = particle->Pz(); | |
286 | ||
287 | // compute rest of track parameters at particle's vertex | |
288 | bendingSlope = 0; | |
289 | nonBendingSlope = 0; | |
290 | inverseBendingMomentum = 0; | |
291 | if (TMath::Abs(pZ) > 0) { | |
292 | bendingSlope = pY/pZ; | |
293 | nonBendingSlope = pX/pZ; | |
294 | } | |
295 | Double_t pYZ = TMath::Sqrt(pY*pY+pZ*pZ); | |
296 | if (pYZ >0) inverseBendingMomentum = 1/pYZ; | |
297 | inverseBendingMomentum *= charge; | |
298 | ||
299 | // set track parameters at particle's vertex | |
300 | AliMUONTrackParam trackParamAtVertex; | |
301 | trackParamAtVertex.SetNonBendingCoor(x); | |
302 | trackParamAtVertex.SetBendingCoor(y); | |
303 | trackParamAtVertex.SetZ(z); | |
304 | trackParamAtVertex.SetBendingSlope(bendingSlope); | |
305 | trackParamAtVertex.SetNonBendingSlope(nonBendingSlope); | |
306 | trackParamAtVertex.SetInverseBendingMomentum(inverseBendingMomentum); | |
307 | ||
308 | // add track parameters at vertex | |
309 | track.SetTrackParamAtVertex(&trackParamAtVertex); | |
310 | ||
103e6575 | 311 | // store the track |
96ebe67e | 312 | track.SetTrackID(iTrackRef); |
313 | tmpTrackRefStore->Add(track); | |
b8dc484b | 314 | } |
b8dc484b | 315 | |
96ebe67e | 316 | CleanMuonTrackRef(tmpTrackRefStore); |
48217459 | 317 | |
103e6575 | 318 | delete hit; |
319 | delete cStore; | |
96ebe67e | 320 | delete tmpTrackRefStore; |
b8dc484b | 321 | } |
322 | ||
323 | //_____________________________________________________________________________ | |
96ebe67e | 324 | void AliMUONRecoCheck::CleanMuonTrackRef(const AliMUONVTrackStore *tmpTrackRefStore) |
b8dc484b | 325 | { |
48217459 | 326 | /// Re-calculate hits parameters because two AliTrackReferences are recorded for |
327 | /// each chamber (one when particle is entering + one when particle is leaving | |
328 | /// the sensitive volume) | |
103e6575 | 329 | if (!(fTrackRefStore = AliMUONESDInterface::NewTrackStore())) return; |
48217459 | 330 | |
96ebe67e | 331 | Double_t maxGasGap = 1.; // cm |
332 | Double_t x, y, z, pX, pY, pZ, x1, y1, z1, pX1, pY1, pZ1, z2; | |
333 | Double_t bendingSlope,nonBendingSlope,inverseBendingMomentum; | |
103e6575 | 334 | AliMUONVClusterStore* cStore = AliMUONESDInterface::NewClusterStore(); |
335 | if (!cStore) return; | |
336 | AliMUONVCluster* hit = cStore->CreateCluster(0,0,0); | |
48217459 | 337 | |
96ebe67e | 338 | // create iterator |
339 | TIter next(tmpTrackRefStore->CreateIterator()); | |
48217459 | 340 | |
96ebe67e | 341 | // loop over tmpTrackRef |
48217459 | 342 | AliMUONTrack* track; |
96ebe67e | 343 | while ( ( track = static_cast<AliMUONTrack*>(next()) ) ) { |
344 | ||
345 | AliMUONTrack newTrack; | |
346 | ||
347 | // loop over tmpTrackRef's hits | |
348 | Int_t iHit1 = 0; | |
349 | Int_t nTrackHits = track->GetNClusters(); | |
350 | while (iHit1 < nTrackHits) { | |
351 | AliMUONTrackParam *trackParam1 = (AliMUONTrackParam*) track->GetTrackParamAtCluster()->UncheckedAt(iHit1); | |
352 | ||
353 | // get track parameters at hit1 | |
354 | x1 = trackParam1->GetNonBendingCoor(); | |
355 | y1 = trackParam1->GetBendingCoor(); | |
356 | z1 = trackParam1->GetZ(); | |
357 | pX1 = trackParam1->Px(); | |
358 | pY1 = trackParam1->Py(); | |
359 | pZ1 = trackParam1->Pz(); | |
360 | ||
361 | // prepare new track parameters | |
362 | x = x1; | |
363 | y = y1; | |
364 | z = z1; | |
365 | pX = pX1; | |
366 | pY = pY1; | |
367 | pZ = pZ1; | |
368 | ||
369 | // loop over next tmpTrackRef's hits | |
370 | Int_t nCombinedHits = 1; | |
371 | for (Int_t iHit2 = iHit1+1; iHit2 < nTrackHits; iHit2++) { | |
372 | AliMUONTrackParam *trackParam2 = (AliMUONTrackParam*) track->GetTrackParamAtCluster()->UncheckedAt(iHit2); | |
48217459 | 373 | |
96ebe67e | 374 | // get z position of hit2 |
375 | z2 = trackParam2->GetZ(); | |
376 | ||
377 | // complete new track parameters if hit2 is on the same detection element | |
378 | if ( TMath::Abs(z2-z1) < maxGasGap ) { | |
379 | x += trackParam2->GetNonBendingCoor(); | |
380 | y += trackParam2->GetBendingCoor(); | |
381 | z += z2; | |
382 | pX += trackParam2->Px(); | |
383 | pY += trackParam2->Py(); | |
384 | pZ += trackParam2->Pz(); | |
385 | nCombinedHits++; | |
48217459 | 386 | iHit1 = iHit2; |
387 | } | |
388 | ||
96ebe67e | 389 | } |
390 | ||
391 | // finalize new track parameters | |
392 | x /= (Double_t)nCombinedHits; | |
393 | y /= (Double_t)nCombinedHits; | |
394 | z /= (Double_t)nCombinedHits; | |
395 | pX /= (Double_t)nCombinedHits; | |
396 | pY /= (Double_t)nCombinedHits; | |
397 | pZ /= (Double_t)nCombinedHits; | |
398 | bendingSlope = 0; | |
399 | nonBendingSlope = 0; | |
400 | inverseBendingMomentum = 0; | |
401 | if (TMath::Abs(pZ) > 0) { | |
402 | bendingSlope = pY/pZ; | |
403 | nonBendingSlope = pX/pZ; | |
404 | } | |
405 | Double_t pYZ = TMath::Sqrt(pY*pY+pZ*pZ); | |
406 | if (pYZ >0) inverseBendingMomentum = 1/pYZ; | |
407 | inverseBendingMomentum *= trackParam1->GetCharge(); | |
b8dc484b | 408 | |
96ebe67e | 409 | // set hit parameters |
103e6575 | 410 | hit->SetUniqueID(AliMUONVCluster::BuildUniqueID(trackParam1->GetClusterPtr()->GetChamberId(), 0, 0)); |
411 | hit->SetXYZ(x,y,z); | |
412 | hit->SetErrXY(0.,0.); | |
48217459 | 413 | |
96ebe67e | 414 | // set new track parameters at new hit |
415 | AliMUONTrackParam trackParam; | |
416 | trackParam.SetNonBendingCoor(x); | |
417 | trackParam.SetBendingCoor(y); | |
418 | trackParam.SetZ(z); | |
419 | trackParam.SetBendingSlope(bendingSlope); | |
420 | trackParam.SetNonBendingSlope(nonBendingSlope); | |
421 | trackParam.SetInverseBendingMomentum(inverseBendingMomentum); | |
422 | ||
423 | // add track parameters at current hit to the track | |
103e6575 | 424 | newTrack.AddTrackParamAtCluster(trackParam, *hit, kTRUE); |
b8dc484b | 425 | |
426 | iHit1++; | |
96ebe67e | 427 | } |
48217459 | 428 | |
96ebe67e | 429 | newTrack.SetTrackID(track->GetTrackID()); |
430 | newTrack.SetTrackParamAtVertex(track->GetTrackParamAtVertex()); | |
431 | fTrackRefStore->Add(newTrack); | |
b8dc484b | 432 | |
96ebe67e | 433 | } |
b8dc484b | 434 | |
103e6575 | 435 | delete hit; |
436 | delete cStore; | |
b8dc484b | 437 | } |
438 | ||
439 | //_____________________________________________________________________________ | |
96ebe67e | 440 | void AliMUONRecoCheck::MakeReconstructibleTracks() |
b8dc484b | 441 | { |
61fed964 | 442 | /// Isolate the reconstructible tracks |
103e6575 | 443 | if (!(fRecoTrackRefStore = AliMUONESDInterface::NewTrackStore())) return; |
48217459 | 444 | |
96ebe67e | 445 | // create iterator on trackRef |
446 | TIter next(fTrackRefStore->CreateIterator()); | |
b8dc484b | 447 | |
96ebe67e | 448 | // loop over trackRef |
48217459 | 449 | AliMUONTrack* track; |
96ebe67e | 450 | while ( ( track = static_cast<AliMUONTrack*>(next()) ) ) { |
451 | ||
452 | Bool_t* chamberInTrack = new Bool_t(AliMUONConstants::NTrackingCh()); | |
453 | for (Int_t iCh = 0; iCh < AliMUONConstants::NTrackingCh(); iCh++) chamberInTrack[iCh] = kFALSE; | |
48217459 | 454 | |
96ebe67e | 455 | // loop over trackRef's hits to get hit chambers |
456 | Int_t nTrackHits = track->GetNClusters(); | |
457 | for (Int_t iHit = 0; iHit < nTrackHits; iHit++) { | |
458 | AliMUONVCluster* hit = ((AliMUONTrackParam*) track->GetTrackParamAtCluster()->UncheckedAt(iHit))->GetClusterPtr(); | |
459 | chamberInTrack[hit->GetChamberId()] = kTRUE; | |
cc056de1 | 460 | } |
96ebe67e | 461 | |
cc056de1 | 462 | // track is reconstructible if the particle is depositing a hit |
463 | // in the following chamber combinations: | |
96ebe67e | 464 | Bool_t trackOK = kTRUE; |
465 | if (!chamberInTrack[0] && !chamberInTrack[1]) trackOK = kFALSE; | |
466 | if (!chamberInTrack[2] && !chamberInTrack[3]) trackOK = kFALSE; | |
467 | if (!chamberInTrack[4] && !chamberInTrack[5]) trackOK = kFALSE; | |
468 | Int_t nHitsInLastStations = 0; | |
469 | for (Int_t iCh = 6; iCh < AliMUONConstants::NTrackingCh(); iCh++) | |
470 | if (chamberInTrack[iCh]) nHitsInLastStations++; | |
471 | if(nHitsInLastStations < 3) trackOK = kFALSE; | |
48217459 | 472 | |
96ebe67e | 473 | // Add reconstructible tracks to fRecoTrackRefStore |
474 | if (trackOK) fRecoTrackRefStore->Add(*track); | |
48217459 | 475 | |
96ebe67e | 476 | delete [] chamberInTrack; |
b8dc484b | 477 | } |
48217459 | 478 | |
b8dc484b | 479 | } |
480 |