]>
Commit | Line | Data |
---|---|---|
1 | /************************************************************************** | |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | //-----------------------------------------------------------------// | |
17 | // // | |
18 | // AliTOFtracker Class // | |
19 | // Task: Perform association of the ESD tracks to TOF Clusters // | |
20 | // and Update ESD track with associated TOF Cluster parameters // | |
21 | // // | |
22 | //-----------------------------------------------------------------// | |
23 | ||
24 | #include <Rtypes.h> | |
25 | ||
26 | #include "TClonesArray.h" | |
27 | #include "TObjArray.h" | |
28 | #include "TTree.h" | |
29 | #include "TTreeStream.h" | |
30 | ||
31 | #include "AliESDEvent.h" | |
32 | #include "AliESDtrack.h" | |
33 | #include "AliESDpid.h" | |
34 | ||
35 | #include "AliTOFRecoParam.h" | |
36 | #include "AliTOFReconstructor.h" | |
37 | #include "AliTOFcluster.h" | |
38 | #include "AliTOFGeometry.h" | |
39 | #include "AliTOFtrackerMI.h" | |
40 | #include "AliTOFtrack.h" | |
41 | ||
42 | #include "AliMathBase.h" | |
43 | ||
44 | class TGeoManager; | |
45 | ||
46 | extern TGeoManager *gGeoManager; | |
47 | ||
48 | ClassImp(AliTOFtrackerMI) | |
49 | ||
50 | //_____________________________________________________________________________ | |
51 | AliTOFtrackerMI::AliTOFtrackerMI(): | |
52 | fkRecoParam(0x0), | |
53 | fGeom(0x0), | |
54 | fN(0), | |
55 | fNseeds(0), | |
56 | fNseedsTOF(0), | |
57 | fngoodmatch(0), | |
58 | fnbadmatch(0), | |
59 | fnunmatch(0), | |
60 | fnmatch(0), | |
61 | fR(379.), | |
62 | fTOFHeigth(15.3), | |
63 | fdCut(3.), | |
64 | fDx(1.5), | |
65 | fDy(0), | |
66 | fDz(0), | |
67 | fTracks(new TClonesArray("AliTOFtrack")), | |
68 | fSeeds(new TObjArray(100)), | |
69 | fDebugStreamer(0x0) | |
70 | { | |
71 | //AliTOFtrackerMI main Ctor | |
72 | ||
73 | for (Int_t ii=0; ii<kMaxCluster; ii++) fClusters[ii]=0x0; | |
74 | ||
75 | fDy=AliTOFGeometry::XPad(); | |
76 | fDz=AliTOFGeometry::ZPad(); | |
77 | fDebugStreamer = new TTreeSRedirector("TOFdebug.root"); | |
78 | } | |
79 | ||
80 | //_____________________________________________________________________________ | |
81 | AliTOFtrackerMI::~AliTOFtrackerMI(){ | |
82 | // | |
83 | // Destructor | |
84 | // | |
85 | if (fDebugStreamer) { | |
86 | //fDebugStreamer->Close(); | |
87 | delete fDebugStreamer; | |
88 | } | |
89 | delete fkRecoParam; | |
90 | delete fGeom; | |
91 | if (fTracks){ | |
92 | fTracks->Delete(); | |
93 | delete fTracks; | |
94 | fTracks=0x0; | |
95 | } | |
96 | if (fSeeds){ | |
97 | fSeeds->Delete(); | |
98 | delete fSeeds; | |
99 | fSeeds=0x0; | |
100 | } | |
101 | ||
102 | for (Int_t ii=0; ii<kMaxCluster; ii++) | |
103 | if (fClusters[ii]) fClusters[ii]->Delete(); | |
104 | ||
105 | } | |
106 | //_____________________________________________________________________________ | |
107 | void AliTOFtrackerMI::GetPidSettings(AliESDpid *esdPID) { | |
108 | // | |
109 | // Sets TOF resolution from RecoParams | |
110 | // | |
111 | if (fkRecoParam) | |
112 | esdPID->GetTOFResponse().SetTimeResolution(fkRecoParam->GetTimeResolution()); | |
113 | else | |
114 | AliWarning("fkRecoParam not yet set; cannot set PID settings"); | |
115 | } | |
116 | ||
117 | //_____________________________________________________________________________ | |
118 | Int_t AliTOFtrackerMI::PropagateBack(AliESDEvent * const event) { | |
119 | // | |
120 | // Gets seeds from ESD event and Match with TOF Clusters | |
121 | // | |
122 | ||
123 | // initialize RecoParam for current event | |
124 | AliDebug(1,"Initializing params for TOF"); | |
125 | ||
126 | fkRecoParam = AliTOFReconstructor::GetRecoParam(); // instantiate reco param from STEER... | |
127 | ||
128 | if (fkRecoParam == 0x0) { | |
129 | AliFatal("No Reco Param found for TOF!!!"); | |
130 | } | |
131 | //fkRecoParam->Dump(); | |
132 | //if(fkRecoParam->GetApplyPbPbCuts())fkRecoParam=fkRecoParam->GetPbPbparam(); | |
133 | //fkRecoParam->PrintParameters(); | |
134 | ||
135 | //Initialise some counters | |
136 | ||
137 | fNseeds=0; | |
138 | fNseedsTOF=0; | |
139 | fngoodmatch=0; | |
140 | fnbadmatch=0; | |
141 | fnunmatch=0; | |
142 | fnmatch=0; | |
143 | ||
144 | Int_t ntrk=event->GetNumberOfTracks(); | |
145 | fNseeds = ntrk; | |
146 | ||
147 | //Load ESD tracks into a local Array of ESD Seeds | |
148 | for (Int_t i=0; i<fNseeds; i++) | |
149 | fSeeds->AddLast(event->GetTrack(i)); | |
150 | ||
151 | //Prepare ESD tracks candidates for TOF Matching | |
152 | CollectESD(); | |
153 | ||
154 | //First Step with Strict Matching Criterion | |
155 | //MatchTracks(kFALSE); | |
156 | ||
157 | //Second Step with Looser Matching Criterion | |
158 | //MatchTracks(kTRUE); | |
159 | MatchTracksMI(kFALSE); // assign track to clusters | |
160 | MatchTracksMI(kTRUE); // assign clusters to esd | |
161 | ||
162 | AliInfo(Form("Number of matched tracks = %d (good = %d, bad = %d)",fnmatch,fngoodmatch,fnbadmatch)); | |
163 | ||
164 | //Update the matched ESD tracks | |
165 | ||
166 | for (Int_t i=0; i<ntrk; i++) { | |
167 | AliESDtrack *t=event->GetTrack(i); | |
168 | AliESDtrack *seed =(AliESDtrack*)fSeeds->At(i); | |
169 | ||
170 | if ( (seed->GetStatus()&AliESDtrack::kTOFin)!=0 ) { | |
171 | t->SetStatus(AliESDtrack::kTOFin); | |
172 | //if(seed->GetTOFsignal()>0){ | |
173 | if ( (seed->GetStatus()&AliESDtrack::kTOFout)!=0 ) { | |
174 | t->SetStatus(AliESDtrack::kTOFout); | |
175 | t->SetTOFsignal(seed->GetTOFsignal()); | |
176 | t->SetTOFcluster(seed->GetTOFcluster()); | |
177 | Int_t tlab[3]; seed->GetTOFLabel(tlab); | |
178 | t->SetTOFLabel(tlab); | |
179 | ||
180 | // Check done: | |
181 | // by calling the AliESDtrack::UpdateTrackParams, | |
182 | // the current track parameters are changed | |
183 | // and it could cause refit problems. | |
184 | // We need to update only the following track parameters: | |
185 | // the track length and expected times. | |
186 | // Removed AliESDtrack::UpdateTrackParams call | |
187 | // Called AliESDtrack::SetIntegratedTimes(...) and | |
188 | // AliESDtrack::SetIntegratedLength() routines. | |
189 | /* | |
190 | AliTOFtrack *track = new AliTOFtrack(*seed); | |
191 | t->UpdateTrackParams(track,AliESDtrack::kTOFout); | |
192 | delete track; | |
193 | */ | |
194 | ||
195 | Double_t times[10]; seed->GetIntegratedTimes(times); | |
196 | t->SetIntegratedTimes(times); | |
197 | t->SetIntegratedLength(seed->GetIntegratedLength()); | |
198 | t->SetTOFsignalToT(seed->GetTOFsignalToT()); | |
199 | t->SetTOFCalChannel(seed->GetTOFCalChannel()); | |
200 | t->SetTOFDeltaBC(seed->GetTOFDeltaBC()); | |
201 | t->SetTOFL0L1(seed->GetTOFL0L1()); | |
202 | // | |
203 | // Make attention, please: | |
204 | // AliESDtrack::fTOFInfo array does not be stored in the AliESDs.root file | |
205 | // it is there only for a check during the reconstruction step. | |
206 | Float_t info[10]; | |
207 | seed->GetTOFInfo(info); | |
208 | t->SetTOFInfo(info); | |
209 | } | |
210 | } | |
211 | } | |
212 | ||
213 | ||
214 | //Make TOF PID | |
215 | ||
216 | fSeeds->Clear(); | |
217 | fTracks->Delete(); | |
218 | return 0; | |
219 | ||
220 | } | |
221 | //_________________________________________________________________________ | |
222 | void AliTOFtrackerMI::CollectESD() { | |
223 | //prepare the set of ESD tracks to be matched to clusters in TOF | |
224 | ||
225 | TClonesArray &aTOFTrack = *fTracks; | |
226 | Int_t c0=0; | |
227 | Int_t c1=0; | |
228 | for (Int_t i=0; i<fNseeds; i++) { | |
229 | ||
230 | AliESDtrack *t =(AliESDtrack*)fSeeds->At(i); | |
231 | if ((t->GetStatus()&AliESDtrack::kTPCout)==0)continue; | |
232 | ||
233 | AliTOFtrack *track = new AliTOFtrack(*t); // New | |
234 | Float_t x = (Float_t)track->GetX(); //New | |
235 | ||
236 | // TRD good tracks, already propagated at 371 cm | |
237 | if ( ( (t->GetStatus()&AliESDtrack::kTRDout)!=0 ) && | |
238 | ( x >= AliTOFGeometry::Rmin() ) ) { | |
239 | if ( track->PropagateToInnerTOF() ) { | |
240 | track->SetSeedIndex(i); | |
241 | t->UpdateTrackParams(track,AliESDtrack::kTOFin); | |
242 | new(aTOFTrack[fNseedsTOF]) AliTOFtrack(*track); | |
243 | fNseedsTOF++; | |
244 | c0++; | |
245 | delete track; | |
246 | } | |
247 | } | |
248 | ||
249 | // Propagate the rest of TPCbp | |
250 | else { | |
251 | if ( track->PropagateToInnerTOF() ) { // temporary solution | |
252 | track->SetSeedIndex(i); | |
253 | t->UpdateTrackParams(track,AliESDtrack::kTOFin); | |
254 | new(aTOFTrack[fNseedsTOF]) AliTOFtrack(*track); | |
255 | fNseedsTOF++; | |
256 | c1++; | |
257 | } | |
258 | delete track; | |
259 | } | |
260 | } | |
261 | // | |
262 | // | |
263 | printf("TRD\tOn\t%d\tOff\t%d\n",c0,c1); | |
264 | ||
265 | // Sort according uncertainties on track position | |
266 | fTracks->Sort(); | |
267 | ||
268 | } | |
269 | ||
270 | //_________________________________________________________________________ | |
271 | void AliTOFtrackerMI::MatchTracks( Bool_t /*mLastStep*/) const { | |
272 | return; | |
273 | } | |
274 | // | |
275 | // | |
276 | //_________________________________________________________________________ | |
277 | void AliTOFtrackerMI::MatchTracksMI(Bool_t mLastStep){ | |
278 | ||
279 | //Match ESD tracks to clusters in TOF | |
280 | const Float_t kTofOffset = 0; // time offset | |
281 | const Float_t kMinQuality = -6.; // minimal quality | |
282 | const Float_t kMaxQualityD = 1.; // max delta quality if cluster used | |
283 | const Float_t kForbiddenR = 0.1; // minimal PID according TPC | |
284 | ||
285 | static const Double_t kMasses[AliPID::kSPECIES+1]={ | |
286 | 0.000511, 0.105658, 0.139570, 0.493677, 0.938272, 1.875613 | |
287 | }; | |
288 | ||
289 | Int_t nSteps=(Int_t)(fTOFHeigth/0.1); | |
290 | ||
291 | //PH Arrays (moved outside of the loop) | |
292 | Float_t * trackPos[4]; | |
293 | for (Int_t ii=0; ii<4; ii++) trackPos[ii] = new Float_t[nSteps]; | |
294 | Int_t * clind = new Int_t[fN]; | |
295 | ||
296 | // Some init | |
297 | const Int_t kNclusterMax = 1000; // related to fN value | |
298 | AliTOFcluster *clusters[kNclusterMax]; | |
299 | Int_t index[kNclusterMax]; | |
300 | Float_t quality[kNclusterMax]; | |
301 | Float_t dist3D[kNclusterMax][6]; | |
302 | Double_t times[kNclusterMax][6]; | |
303 | Float_t mintimedist[kNclusterMax]; | |
304 | Float_t likelihood[kNclusterMax]; | |
305 | Float_t length[kNclusterMax]; | |
306 | Double_t tpcpid[AliPID::kSPECIES+1]; // overrun_static - coverity warning | |
307 | dist3D[0][0]=1; | |
308 | ||
309 | for (Int_t i=0; i<fNseedsTOF; i++) { | |
310 | ||
311 | AliTOFtrack *track =(AliTOFtrack*)fTracks->UncheckedAt(i); | |
312 | AliESDtrack *t =(AliESDtrack*)fSeeds->At(track->GetSeedIndex()); | |
313 | Bool_t hasTime = ( (t->GetStatus()& AliESDtrack::kTIME)>0) ? kTRUE:kFALSE; // did we integrate time | |
314 | Float_t trdquality = t->GetTRDQuality(); | |
315 | // | |
316 | // Normalize tpc pid | |
317 | // | |
318 | t->GetTPCpid(tpcpid); | |
319 | Double_t sumpid=0; | |
320 | for (Int_t ipid=0;ipid<AliPID::kSPECIES;ipid++){ | |
321 | sumpid+=tpcpid[ipid]; | |
322 | } | |
323 | for (Int_t ipid=0;ipid<AliPID::kSPECIES;ipid++){ | |
324 | if (sumpid>0) tpcpid[ipid]/=sumpid; | |
325 | else{ | |
326 | tpcpid[ipid]=0.2; | |
327 | } | |
328 | } | |
329 | ||
330 | if (trdquality<0) continue; // no chance | |
331 | // | |
332 | AliTOFtrack *trackTOFin =new AliTOFtrack(*track); | |
333 | // | |
334 | //propagat track to the middle of TOF | |
335 | // | |
336 | Float_t xs = 379.2; // should be defined in the TOF geometry | |
337 | Double_t ymax=xs*TMath::Tan(0.5*AliTOFGeometry::GetAlpha()); | |
338 | Bool_t skip=kFALSE; | |
339 | Double_t ysect=trackTOFin->GetYat(xs,skip); | |
340 | if (skip){ | |
341 | xs = 373.; | |
342 | ymax=xs*TMath::Tan(0.5*AliTOFGeometry::GetAlpha()); | |
343 | ysect=trackTOFin->GetYat(xs,skip); | |
344 | } | |
345 | if (ysect > ymax) { | |
346 | if (!trackTOFin->Rotate(AliTOFGeometry::GetAlpha())) { | |
347 | continue; | |
348 | } | |
349 | } else if (ysect <-ymax) { | |
350 | if (!trackTOFin->Rotate(-AliTOFGeometry::GetAlpha())) { | |
351 | continue; | |
352 | } | |
353 | } | |
354 | if(!trackTOFin->PropagateTo(xs)) { | |
355 | continue; | |
356 | } | |
357 | // | |
358 | // Determine a window around the track | |
359 | // | |
360 | Double_t x,par[5]; | |
361 | trackTOFin->GetExternalParameters(x,par); | |
362 | Double_t cov[15]; | |
363 | trackTOFin->GetExternalCovariance(cov); | |
364 | ||
365 | if (cov[0]<0. || cov[2]<0.) { | |
366 | AliWarning(Form("Very strange track (%d)! At least one of its covariance matrix diagonal elements is negative!",i)); | |
367 | //delete trackTOFin; | |
368 | //continue; | |
369 | } | |
370 | ||
371 | Float_t scalefact=3.; | |
372 | Double_t dphi= | |
373 | scalefact* | |
374 | ((5*TMath::Sqrt(TMath::Abs(cov[0])) + 3.*fDy + 10.*TMath::Abs(par[2]))/fR); | |
375 | Double_t dz= | |
376 | scalefact* | |
377 | (5*TMath::Sqrt(TMath::Abs(cov[2])) + 3.*fDz + 10.*TMath::Abs(par[3])); | |
378 | ||
379 | Double_t phi=TMath::ATan2(par[0],x) + trackTOFin->GetAlpha(); | |
380 | if (phi<-TMath::Pi())phi+=2*TMath::Pi(); | |
381 | if (phi>=TMath::Pi())phi-=2*TMath::Pi(); | |
382 | Double_t z=par[1]; | |
383 | ||
384 | Int_t nc =0; | |
385 | Int_t nfound =0; | |
386 | // find the clusters in the window of the track | |
387 | ||
388 | for (Int_t k=FindClusterIndex(z-dz); k<fN; k++) { | |
389 | ||
390 | if (nc>=kNclusterMax) { | |
391 | AliWarning("No more matchable clusters can be stored! Please, increase the corresponding vectors size."); | |
392 | break; | |
393 | } | |
394 | ||
395 | AliTOFcluster *c=fClusters[k]; | |
396 | if (c->GetZ() > z+dz) break; | |
397 | // if (c->IsUsed()) continue; | |
398 | ||
399 | Double_t dph=TMath::Abs(c->GetPhi()-phi); | |
400 | if (dph>TMath::Pi()) dph-=2.*TMath::Pi(); | |
401 | if (TMath::Abs(dph)>dphi) continue; | |
402 | ||
403 | clind[nc] = k; | |
404 | nc++; | |
405 | } | |
406 | ||
407 | AliDebug(1,Form(" Number of matchable TOF clusters for the track number %d: %d",i,nc)); | |
408 | ||
409 | // | |
410 | // select close clusters | |
411 | // | |
412 | Double_t mom=t->GetP(); | |
413 | // Bool_t dump = kTRUE; | |
414 | for (Int_t icl=0; icl<nc; icl++){ | |
415 | Float_t distances[5]; | |
416 | ||
417 | index[nfound]=clind[icl]; | |
418 | AliTOFcluster *cluster = fClusters[clind[icl]]; | |
419 | GetLinearDistances(trackTOFin, cluster, distances); | |
420 | dist3D[nfound][0] = distances[4]; | |
421 | dist3D[nfound][1] = distances[1]; | |
422 | dist3D[nfound][2] = distances[2]; | |
423 | // cut on distance | |
424 | if (TMath::Abs(dist3D[nfound][1])>20 || TMath::Abs(dist3D[nfound][2])>20) continue; | |
425 | // | |
426 | GetLikelihood(distances[1],distances[2],cov,trackTOFin, dist3D[nfound][3], dist3D[nfound][4]); | |
427 | // | |
428 | // cut on likelihood | |
429 | if (dist3D[nfound][3]*dist3D[nfound][4]<0.00000000000001) continue; // log likelihood | |
430 | if (TMath::Log(dist3D[nfound][3]*dist3D[nfound][4])<-9) continue; // log likelihood | |
431 | // | |
432 | clusters[nfound] = cluster; | |
433 | // | |
434 | //length and TOF updates | |
435 | trackTOFin->GetIntegratedTimes(times[nfound]); | |
436 | length[nfound] = trackTOFin->GetIntegratedLength(); | |
437 | length[nfound]+=distances[4]; | |
438 | mintimedist[nfound]=1000; | |
439 | Double_t tof2=AliTOFGeometry::TdcBinWidth()*cluster->GetTDC()+kTofOffset; // in ps | |
440 | // Float_t tgamma = TMath::Sqrt(cluster->GetR()*cluster->GetR()+cluster->GetZ()*cluster->GetZ())/0.03; //time for "primary" gamma | |
441 | //if (trackTOFin->GetPt()<0.7 && TMath::Abs(tgamma-tof2)<350) continue; // gamma conversion candidate - TEMPORARY | |
442 | for(Int_t j=0;j<AliPID::kSPECIES+1;j++){ | |
443 | ||
444 | Double_t mass=kMasses[j]; | |
445 | times[nfound][j]+=distances[4]/3e-2*TMath::Sqrt(mom*mom+mass*mass)/mom; // add time distance | |
446 | if ( TMath::Abs(times[nfound][j]-tof2)<mintimedist[nfound] && tpcpid[j]>kForbiddenR){ | |
447 | mintimedist[nfound]=TMath::Abs(times[nfound][j]-tof2); | |
448 | } | |
449 | } | |
450 | // | |
451 | Float_t liketime = TMath::Exp(-mintimedist[nfound]/90.)+0.25*TMath::Exp(-mintimedist[nfound]/180.); | |
452 | if (!hasTime) liketime=0.2; | |
453 | likelihood[nfound] = TMath::Log(dist3D[nfound][3]*dist3D[nfound][4]*liketime); | |
454 | ||
455 | if (TMath::Log(dist3D[nfound][3]*dist3D[nfound][4])<-1){ | |
456 | if (likelihood[nfound]<-9.) continue; | |
457 | } | |
458 | // | |
459 | nfound++; | |
460 | } | |
461 | ||
462 | AliDebug(1,Form(" Number of track points for the track number %d: %d",i,nfound)); | |
463 | ||
464 | if (nfound == 0 ) { | |
465 | fnunmatch++; | |
466 | delete trackTOFin; | |
467 | continue; | |
468 | } | |
469 | // | |
470 | //choose the best cluster | |
471 | // | |
472 | //Float_t quality[kNclusterMax]; | |
473 | //Int_t index[kNclusterMax]; | |
474 | for (Int_t kk=0; kk<kNclusterMax; kk++) quality[kk]=0; | |
475 | // | |
476 | AliTOFcluster * cgold=0; | |
477 | Int_t igold =-1; | |
478 | for (Int_t icl=0;icl<nfound;icl++){ | |
479 | quality[icl] = dist3D[icl][3]*dist3D[icl][4]; | |
480 | } | |
481 | TMath::Sort(nfound,quality,index,kTRUE); | |
482 | igold = index[0]; | |
483 | cgold = clusters[igold]; | |
484 | if (nfound>1 &&likelihood[index[1]]>likelihood[index[0]]){ | |
485 | if ( quality[index[0]]<quality[index[1]]+0.5){ | |
486 | igold = index[1]; | |
487 | cgold = clusters[igold]; | |
488 | } | |
489 | } | |
490 | // | |
491 | // | |
492 | Float_t qualityGold = TMath::Log(0.0000001+(quality[igold]*(0.1+TMath::Exp(-mintimedist[igold]/80.))*(0.2+trdquality))); | |
493 | if (!mLastStep){ | |
494 | if (cgold->GetQuality()<qualityGold) cgold->SetQuality(qualityGold); | |
495 | continue; | |
496 | } | |
497 | // | |
498 | if (mLastStep){ | |
499 | //signed better cluster | |
500 | if (cgold->GetQuality()>qualityGold+kMaxQualityD) continue; | |
501 | if (2.*qualityGold-cgold->GetQuality()<kMinQuality) continue; | |
502 | } | |
503 | ||
504 | Int_t inonfake=-1; | |
505 | ||
506 | for (Int_t icl=0;icl<nfound;icl++){ | |
507 | if ( | |
508 | (clusters[index[icl]]->GetLabel(0)==TMath::Abs(trackTOFin->GetLabel())) | |
509 | || | |
510 | (clusters[index[icl]]->GetLabel(1)==TMath::Abs(trackTOFin->GetLabel())) | |
511 | || | |
512 | (clusters[index[icl]]->GetLabel(2)==TMath::Abs(trackTOFin->GetLabel())) | |
513 | ) { | |
514 | inonfake = icl; | |
515 | break; | |
516 | } | |
517 | } | |
518 | fnmatch++;; | |
519 | if (inonfake==0) fngoodmatch++; | |
520 | else{ | |
521 | fnbadmatch++; | |
522 | } | |
523 | ||
524 | Int_t tlab[3]; | |
525 | tlab[0]=cgold->GetLabel(0); | |
526 | tlab[1]=cgold->GetLabel(1); | |
527 | tlab[2]=cgold->GetLabel(2); | |
528 | // Double_t tof2=25.*cgold->GetTDC()-350; // in ps | |
529 | Double_t tof2=AliTOFGeometry::TdcBinWidth()*cgold->GetTDC()+kTofOffset; // in ps | |
530 | Float_t tgamma = TMath::Sqrt(cgold->GetR()*cgold->GetR()+cgold->GetZ()*cgold->GetZ())/0.03; | |
531 | Float_t info[10]={dist3D[igold][0], | |
532 | dist3D[igold][1], | |
533 | dist3D[igold][2], | |
534 | dist3D[igold][3], | |
535 | dist3D[igold][4], | |
536 | mintimedist[igold], | |
537 | -1, | |
538 | tgamma, | |
539 | qualityGold, | |
540 | static_cast<Float_t>(cgold->GetQuality())}; | |
541 | // GetLinearDistances(trackTOFin,cgold,&info[6]); | |
542 | if (inonfake>=0){ | |
543 | info[6] = inonfake; | |
544 | // info[7] = mintimedist[index[inonfake]]; | |
545 | } | |
546 | // | |
547 | // Store quantities to be used for TOF Calibration | |
548 | Float_t tToT=cgold->GetToT(); // in ps | |
549 | t->SetTOFsignalToT(tToT); | |
550 | Int_t ind[5]; | |
551 | ind[0]=cgold->GetDetInd(0); | |
552 | ind[1]=cgold->GetDetInd(1); | |
553 | ind[2]=cgold->GetDetInd(2); | |
554 | ind[3]=cgold->GetDetInd(3); | |
555 | ind[4]=cgold->GetDetInd(4); | |
556 | Int_t calindex = AliTOFGeometry::GetIndex(ind); | |
557 | t->SetTOFCalChannel(calindex); | |
558 | ||
559 | t->SetTOFInfo(info); | |
560 | t->SetTOFsignal(tof2); | |
561 | t->SetTOFcluster(cgold->GetIndex()); | |
562 | t->SetTOFDeltaBC(cgold->GetDeltaBC()); | |
563 | t->SetTOFL0L1(cgold->GetL0L1Latency()); | |
564 | ||
565 | AliDebug(2, Form("%7i %7i %10i %10i %10i %10i %7i", | |
566 | i, | |
567 | fnmatch-1, | |
568 | TMath::Abs(trackTOFin->GetLabel()), | |
569 | tlab[0], tlab[1], tlab[2], | |
570 | igold)); // AdC | |
571 | ||
572 | AliTOFtrack *trackTOFout = new AliTOFtrack(*t); | |
573 | trackTOFout->PropagateTo(379.); | |
574 | ||
575 | // Fill the track residual histograms. | |
576 | FillResiduals(trackTOFout,cgold,kFALSE); | |
577 | ||
578 | t->UpdateTrackParams(trackTOFout,AliESDtrack::kTOFout); | |
579 | t->SetIntegratedLength(length[igold]); | |
580 | t->SetIntegratedTimes(times[igold]); | |
581 | t->SetTOFLabel(tlab); | |
582 | // | |
583 | delete trackTOFin; | |
584 | delete trackTOFout; | |
585 | // | |
586 | } | |
587 | // | |
588 | // | |
589 | // | |
590 | for (Int_t ii=0; ii<4; ii++) delete [] trackPos[ii]; | |
591 | delete [] clind; | |
592 | //delete calib; // AdC | |
593 | } | |
594 | //_________________________________________________________________________ | |
595 | ||
596 | Int_t AliTOFtrackerMI::LoadClusters(TTree *cTree) { | |
597 | //-------------------------------------------------------------------- | |
598 | //This function loads the TOF clusters | |
599 | //-------------------------------------------------------------------- | |
600 | ||
601 | TBranch *branch=cTree->GetBranch("TOF"); | |
602 | if (!branch) { | |
603 | AliError("can't get the branch with the TOF clusters !"); | |
604 | return 1; | |
605 | } | |
606 | ||
607 | static TClonesArray dummy("AliTOFcluster",10000); | |
608 | dummy.Clear(); | |
609 | TClonesArray *clusters=&dummy; | |
610 | branch->SetAddress(&clusters); | |
611 | ||
612 | cTree->GetEvent(0); | |
613 | Int_t nc=clusters->GetEntriesFast(); | |
614 | AliInfo(Form("Number of clusters: %d",nc)); | |
615 | ||
616 | for (Int_t i=0; i<nc; i++) { | |
617 | AliTOFcluster *c=(AliTOFcluster*)clusters->UncheckedAt(i); | |
618 | ||
619 | //PH fClusters[i]=new AliTOFcluster(*c); fN++; | |
620 | fClusters[i]=c; fN++; | |
621 | ||
622 | //AliInfo(Form("%4i %4i %f %f %f %f %f %2i %1i %2i %1i %2i",i, fClusters[i]->GetIndex(),fClusters[i]->GetZ(),fClusters[i]->GetR(),fClusters[i]->GetPhi(), fClusters[i]->GetTDC(),fClusters[i]->GetADC(),fClusters[i]->GetDetInd(0),fClusters[i]->GetDetInd(1),fClusters[i]->GetDetInd(2),fClusters[i]->GetDetInd(3),fClusters[i]->GetDetInd(4))); | |
623 | //AliInfo(Form("%i %f",i, fClusters[i]->GetZ())); | |
624 | } | |
625 | ||
626 | //AliInfo(Form("Number of clusters: %d",fN)); | |
627 | ||
628 | return 0; | |
629 | } | |
630 | //_________________________________________________________________________ | |
631 | void AliTOFtrackerMI::UnloadClusters() { | |
632 | //-------------------------------------------------------------------- | |
633 | //This function unloads TOF clusters | |
634 | //-------------------------------------------------------------------- | |
635 | for (Int_t i=0; i<fN; i++) { | |
636 | //PH delete fClusters[i]; | |
637 | fClusters[i] = 0x0; | |
638 | } | |
639 | fN=0; | |
640 | } | |
641 | ||
642 | ||
643 | ||
644 | ||
645 | //_________________________________________________________________________ | |
646 | Int_t AliTOFtrackerMI::InsertCluster(AliTOFcluster *c) { | |
647 | //-------------------------------------------------------------------- | |
648 | //This function adds a cluster to the array of clusters sorted in Z | |
649 | //-------------------------------------------------------------------- | |
650 | if (fN==kMaxCluster) { | |
651 | AliError("Too many clusters !"); | |
652 | return 1; | |
653 | } | |
654 | ||
655 | if (fN==0) {fClusters[fN++]=c; return 0;} | |
656 | Int_t i=FindClusterIndex(c->GetZ()); | |
657 | memmove(fClusters+i+1 ,fClusters+i,(fN-i)*sizeof(AliTOFcluster*)); | |
658 | fClusters[i]=c; fN++; | |
659 | ||
660 | return 0; | |
661 | } | |
662 | ||
663 | //_________________________________________________________________________ | |
664 | Int_t AliTOFtrackerMI::FindClusterIndex(Double_t z) const { | |
665 | //-------------------------------------------------------------------- | |
666 | // This function returns the index of the nearest cluster | |
667 | //-------------------------------------------------------------------- | |
668 | if (fN==0) return 0; | |
669 | if (z <= fClusters[0]->GetZ()) return 0; | |
670 | if (z > fClusters[fN-1]->GetZ()) return fN; | |
671 | Int_t b=0, e=fN-1, m=(b+e)/2; | |
672 | for (; b<e; m=(b+e)/2) { | |
673 | if (z > fClusters[m]->GetZ()) b=m+1; | |
674 | else e=m; | |
675 | } | |
676 | return m; | |
677 | } | |
678 | ||
679 | //_________________________________________________________________________ | |
680 | Float_t AliTOFtrackerMI::GetLinearDistances(AliTOFtrack * track, AliTOFcluster *cluster, Float_t distances[5]) | |
681 | { | |
682 | // | |
683 | // calclates distance between cluster and track | |
684 | // use linear aproximation | |
685 | // | |
686 | //const Float_t kRaddeg = 180/3.14159265358979312; | |
687 | const Float_t kRaddeg = TMath::RadToDeg(); | |
688 | // | |
689 | // Float_t tiltangle = fGeom->GetAngles(cluster->fdetIndex[1],cluster->fdetIndex[2])/kRaddeg; //tiltangle | |
690 | Int_t cind[5]; | |
691 | cind[0]= cluster->GetDetInd(0); | |
692 | cind[1]= cluster->GetDetInd(1); | |
693 | cind[2]= cluster->GetDetInd(2); | |
694 | cind[3]= cluster->GetDetInd(3); | |
695 | cind[4]= cluster->GetDetInd(4); | |
696 | Float_t tiltangle = AliTOFGeometry::GetAngles(cluster->GetDetInd(1),cluster->GetDetInd(2))/kRaddeg; //tiltangle | |
697 | ||
698 | Float_t cpos[3]; //cluster position | |
699 | Float_t cpos0[3]; //cluster position | |
700 | // fGeom->GetPos(cluster->fdetIndex,cpos); | |
701 | //fGeom->GetPos(cluster->fdetIndex,cpos0); | |
702 | // | |
703 | fGeom->GetPos(cind,cpos); | |
704 | fGeom->GetPos(cind,cpos0); | |
705 | ||
706 | Float_t phi = TMath::ATan2(cpos[1],cpos[0]); | |
707 | if(phi<0) phi=2.*TMath::Pi()+phi; | |
708 | // Get the local angle in the sector philoc | |
709 | Float_t phiangle = (Int_t (phi*kRaddeg/20.) + 0.5)*20./kRaddeg; | |
710 | // | |
711 | Double_t v0[3]; | |
712 | Double_t dir[3]; | |
713 | track->GetXYZ(v0); | |
714 | track->GetPxPyPz(dir); | |
715 | dir[0]/=track->GetP(); | |
716 | dir[1]/=track->GetP(); | |
717 | dir[2]/=track->GetP(); | |
718 | // | |
719 | // | |
720 | //rotate 0 | |
721 | Float_t sinphi = TMath::Sin(phiangle); | |
722 | Float_t cosphi = TMath::Cos(phiangle); | |
723 | Float_t sinth = TMath::Sin(tiltangle); | |
724 | Float_t costh = TMath::Cos(tiltangle); | |
725 | // | |
726 | Float_t temp; | |
727 | temp = cpos[0]*cosphi+cpos[1]*sinphi; | |
728 | cpos[1] = -cpos[0]*sinphi+cpos[1]*cosphi; | |
729 | cpos[0] = temp; | |
730 | temp = v0[0]*cosphi+v0[1]*sinphi; | |
731 | v0[1] = -v0[0]*sinphi+v0[1]*cosphi; | |
732 | v0[0] = temp; | |
733 | // | |
734 | temp = cpos[0]*costh+cpos[2]*sinth; | |
735 | cpos[2] = -cpos[0]*sinth+cpos[2]*costh; | |
736 | cpos[0] = temp; | |
737 | temp = v0[0]*costh+v0[2]*sinth; | |
738 | v0[2] = -v0[0]*sinth+v0[2]*costh; | |
739 | v0[0] = temp; | |
740 | // | |
741 | // | |
742 | //rotate direction vector | |
743 | // | |
744 | temp = dir[0]*cosphi+dir[1]*sinphi; | |
745 | dir[1] = -dir[0]*sinphi+dir[1]*cosphi; | |
746 | dir[0] = temp; | |
747 | // | |
748 | temp = dir[0]*costh+dir[2]*sinth; | |
749 | dir[2] = -dir[0]*sinth+dir[2]*costh; | |
750 | dir[0] = temp; | |
751 | // | |
752 | Float_t v3[3]; | |
753 | Float_t k = (cpos[0]-v0[0])/dir[0]; | |
754 | v3[0] = v0[0]+k*dir[0]; | |
755 | v3[1] = v0[1]+k*dir[1]; | |
756 | v3[2] = v0[2]+k*dir[2]; | |
757 | // | |
758 | distances[0] = v3[0]-cpos[0]; | |
759 | distances[1] = v3[1]-cpos[1]; | |
760 | distances[2] = v3[2]-cpos[2]; | |
761 | distances[3] = TMath::Sqrt( distances[0]*distances[0]+distances[1]*distances[1]+distances[2]*distances[2]); //distance | |
762 | distances[4] = k; //length | |
763 | ||
764 | // | |
765 | // Debuging part of the matching | |
766 | // | |
767 | if (track->GetLabel()==cluster->GetLabel(0) || | |
768 | track->GetLabel()==cluster->GetLabel(1) || | |
769 | track->GetLabel()==cluster->GetLabel(2) ){ | |
770 | TTreeSRedirector& cstream = *fDebugStreamer; | |
771 | Float_t tdc = cluster->GetTDC(); | |
772 | cstream<<"Tracks"<< | |
773 | "TOF.="<<track<< | |
774 | "Cx="<<cpos0[0]<< | |
775 | "Cy="<<cpos0[1]<< | |
776 | "Cz="<<cpos0[2]<< | |
777 | "Dist="<<k<< | |
778 | "Dist0="<<distances[0]<< | |
779 | "Dist1="<<distances[1]<< | |
780 | "Dist2="<<distances[2]<< | |
781 | "TDC="<<tdc<< | |
782 | "\n"; | |
783 | } | |
784 | return distances[3]; | |
785 | } | |
786 | ||
787 | //_________________________________________________________________________ | |
788 | void AliTOFtrackerMI::GetLikelihood(Float_t dy, Float_t dz, const Double_t *cov, AliTOFtrack * /*track*/, Float_t & py, Float_t &pz) const | |
789 | { | |
790 | // | |
791 | // get likelihood - track covariance taken | |
792 | // 75 % of gauss with expected sigma | |
793 | // 25 % of gauss with extended sigma | |
794 | ||
795 | Double_t kMaxSigmaY = 0.6; // ~ 90% of TRD tracks | |
796 | Double_t kMaxSigmaZ = 1.2; // ~ 90% of TRD tracks | |
797 | Double_t kMeanSigmaY = 0.25; // mean TRD sigma | |
798 | Double_t kMeanSigmaZ = 0.5; // mean TRD sigma | |
799 | ||
800 | ||
801 | Float_t normwidth, normd, p0,p1; | |
802 | Float_t sigmay = TMath::Max(TMath::Sqrt(TMath::Abs(cov[0])+kMeanSigmaY*kMeanSigmaY),kMaxSigmaY); | |
803 | Float_t sigmaz = TMath::Max(TMath::Sqrt(TMath::Abs(cov[2])+kMeanSigmaZ*kMeanSigmaZ),kMaxSigmaZ); | |
804 | ||
805 | py=0; | |
806 | pz=0; | |
807 | // | |
808 | // py calculation - 75% admixture of original sigma - 25% tails | |
809 | // | |
810 | normwidth = fDy/sigmay; | |
811 | normd = dy/sigmay; | |
812 | p0 = 0.5*(1+AliMathBase::ErfFast(normd-normwidth*0.5)); | |
813 | p1 = 0.5*(1+AliMathBase::ErfFast(normd+normwidth*0.5)); | |
814 | py+= 0.75*(p1-p0); | |
815 | // | |
816 | normwidth = fDy/(3.*sigmay); | |
817 | normd = dy/(3.*sigmay); | |
818 | p0 = 0.5*(1+AliMathBase::ErfFast(normd-normwidth*0.5)); | |
819 | p1 = 0.5*(1+AliMathBase::ErfFast(normd+normwidth*0.5)); | |
820 | py+= 0.25*(p1-p0); | |
821 | // | |
822 | // pz calculation - 75% admixture of original sigma - 25% tails | |
823 | // | |
824 | normwidth = fDz/sigmaz; | |
825 | normd = dz/sigmaz; | |
826 | p0 = 0.5*(1+AliMathBase::ErfFast(normd-normwidth*0.5)); | |
827 | p1 = 0.5*(1+AliMathBase::ErfFast(normd+normwidth*0.5)); | |
828 | pz+= 0.75*(p1-p0); | |
829 | // | |
830 | normwidth = fDz/(3.*sigmaz); | |
831 | normd = dz/(3.*sigmaz); | |
832 | p0 = 0.5*(1+AliMathBase::ErfFast(normd-normwidth*0.5)); | |
833 | p1 = 0.5*(1+AliMathBase::ErfFast(normd+normwidth*0.5)); | |
834 | pz+= 0.25*(p1-p0); | |
835 | } | |
836 | //_________________________________________________________________________ | |
837 | ||
838 | void AliTOFtrackerMI::FillClusterArray(TObjArray* arr) const | |
839 | { | |
840 | // | |
841 | // Returns the TOF cluster array | |
842 | // | |
843 | ||
844 | if (fN==0) | |
845 | arr = 0x0; | |
846 | else | |
847 | for (Int_t i=0; i<fN; ++i) arr->Add(fClusters[i]); | |
848 | ||
849 | } |