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d88fbf15 | 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 | **************************************************************************/ | |
0e46b9ae | 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 | //-----------------------------------------------------------------// | |
d88fbf15 | 23 | |
24 | #include <Rtypes.h> | |
0e46b9ae | 25 | |
d88fbf15 | 26 | #include "TClonesArray.h" |
0841bd02 | 27 | #include "TObjArray.h" |
0e46b9ae | 28 | #include "TTree.h" |
d88fbf15 | 29 | #include "TTreeStream.h" |
0e46b9ae | 30 | |
af885e0f | 31 | #include "AliESDEvent.h" |
0e46b9ae | 32 | #include "AliESDtrack.h" |
10d100d4 | 33 | #include "AliESDpid.h" |
0e46b9ae | 34 | |
e0ddb533 | 35 | #include "AliTOFRecoParam.h" |
3a646035 | 36 | #include "AliTOFReconstructor.h" |
0e46b9ae | 37 | #include "AliTOFcluster.h" |
96f01799 | 38 | #include "AliTOFGeometry.h" |
0e46b9ae | 39 | #include "AliTOFtrackerMI.h" |
40 | #include "AliTOFtrack.h" | |
5c7c93fa | 41 | |
bb7e41dd | 42 | #include "AliMathBase.h" |
43 | ||
5c7c93fa | 44 | class TGeoManager; |
0e46b9ae | 45 | |
46 | extern TGeoManager *gGeoManager; | |
d88fbf15 | 47 | |
48 | ClassImp(AliTOFtrackerMI) | |
49 | ||
50 | //_____________________________________________________________________________ | |
e0ddb533 | 51 | AliTOFtrackerMI::AliTOFtrackerMI(): |
069bb393 | 52 | fkRecoParam(0x0), |
e0ddb533 | 53 | fGeom(0x0), |
58d8d9a3 | 54 | fN(0), |
55 | fNseeds(0), | |
56 | fNseedsTOF(0), | |
57 | fngoodmatch(0), | |
58 | fnbadmatch(0), | |
59 | fnunmatch(0), | |
60 | fnmatch(0), | |
8dacd1bb | 61 | fR(379.), |
58d8d9a3 | 62 | fTOFHeigth(15.3), |
63 | fdCut(3.), | |
64 | fDx(1.5), | |
65 | fDy(0), | |
66 | fDz(0), | |
b42a5ea1 | 67 | fTracks(new TClonesArray("AliTOFtrack")), |
de60fa8a | 68 | fSeeds(new TObjArray(100)), |
58d8d9a3 | 69 | fDebugStreamer(0x0) |
70 | { | |
d88fbf15 | 71 | //AliTOFtrackerMI main Ctor |
72 | ||
96f01799 | 73 | fDy=AliTOFGeometry::XPad(); |
74 | fDz=AliTOFGeometry::ZPad(); | |
e0ddb533 | 75 | fDebugStreamer = new TTreeSRedirector("TOFdebug.root"); |
d88fbf15 | 76 | } |
7aeeaf38 | 77 | |
78 | //_____________________________________________________________________________ | |
d88fbf15 | 79 | AliTOFtrackerMI::~AliTOFtrackerMI(){ |
80 | // | |
069bb393 | 81 | // Destructor |
d88fbf15 | 82 | // |
83 | if (fDebugStreamer) { | |
84 | //fDebugStreamer->Close(); | |
85 | delete fDebugStreamer; | |
86 | } | |
069bb393 | 87 | delete fkRecoParam; |
e0ddb533 | 88 | delete fGeom; |
b42a5ea1 | 89 | if (fTracks){ |
90 | fTracks->Delete(); | |
91 | delete fTracks; | |
92 | fTracks=0x0; | |
93 | } | |
94 | if (fSeeds){ | |
95 | fSeeds->Delete(); | |
96 | delete fSeeds; | |
97 | fSeeds=0x0; | |
98 | } | |
d88fbf15 | 99 | } |
10d100d4 | 100 | //_____________________________________________________________________________ |
101 | void AliTOFtrackerMI::GetPidSettings(AliESDpid *esdPID) { | |
102 | // | |
103 | // Sets TOF resolution from RecoParams | |
104 | // | |
069bb393 | 105 | if (fkRecoParam) |
106 | esdPID->GetTOFResponse().SetTimeResolution(fkRecoParam->GetTimeResolution()); | |
10d100d4 | 107 | else |
069bb393 | 108 | AliWarning("fkRecoParam not yet set; cannot set PID settings"); |
10d100d4 | 109 | } |
d88fbf15 | 110 | |
d88fbf15 | 111 | //_____________________________________________________________________________ |
069bb393 | 112 | Int_t AliTOFtrackerMI::PropagateBack(AliESDEvent * const event) { |
d88fbf15 | 113 | // |
114 | // Gets seeds from ESD event and Match with TOF Clusters | |
115 | // | |
116 | ||
3a646035 | 117 | // initialize RecoParam for current event |
bafe290d | 118 | AliDebug(1,"Initializing params for TOF"); |
3a646035 | 119 | |
069bb393 | 120 | fkRecoParam = AliTOFReconstructor::GetRecoParam(); // instantiate reco param from STEER... |
90b234fe | 121 | |
069bb393 | 122 | if (fkRecoParam == 0x0) { |
3a646035 | 123 | AliFatal("No Reco Param found for TOF!!!"); |
124 | } | |
069bb393 | 125 | //fkRecoParam->Dump(); |
126 | //if(fkRecoParam->GetApplyPbPbCuts())fkRecoParam=fkRecoParam->GetPbPbparam(); | |
127 | //fkRecoParam->PrintParameters(); | |
128 | ||
d88fbf15 | 129 | //Initialise some counters |
130 | ||
131 | fNseeds=0; | |
132 | fNseedsTOF=0; | |
133 | fngoodmatch=0; | |
134 | fnbadmatch=0; | |
135 | fnunmatch=0; | |
136 | fnmatch=0; | |
137 | ||
138 | Int_t ntrk=event->GetNumberOfTracks(); | |
139 | fNseeds = ntrk; | |
d88fbf15 | 140 | |
141 | //Load ESD tracks into a local Array of ESD Seeds | |
0841bd02 | 142 | for (Int_t i=0; i<fNseeds; i++) |
143 | fSeeds->AddLast(event->GetTrack(i)); | |
d88fbf15 | 144 | |
145 | //Prepare ESD tracks candidates for TOF Matching | |
146 | CollectESD(); | |
147 | ||
148 | //First Step with Strict Matching Criterion | |
149 | //MatchTracks(kFALSE); | |
150 | ||
151 | //Second Step with Looser Matching Criterion | |
152 | //MatchTracks(kTRUE); | |
153 | MatchTracksMI(kFALSE); // assign track to clusters | |
154 | MatchTracksMI(kTRUE); // assign clusters to esd | |
155 | ||
bafe290d | 156 | AliInfo(Form("Number of matched tracks = %d (good = %d, bad = %d)",fnmatch,fngoodmatch,fnbadmatch)); |
d88fbf15 | 157 | |
158 | //Update the matched ESD tracks | |
159 | ||
160 | for (Int_t i=0; i<ntrk; i++) { | |
161 | AliESDtrack *t=event->GetTrack(i); | |
0841bd02 | 162 | AliESDtrack *seed =(AliESDtrack*)fSeeds->At(i); |
2188ddfc | 163 | |
164 | if ( (seed->GetStatus()&AliESDtrack::kTOFin)!=0 ) { | |
165 | t->SetStatus(AliESDtrack::kTOFin); | |
166 | //if(seed->GetTOFsignal()>0){ | |
167 | if ( (seed->GetStatus()&AliESDtrack::kTOFout)!=0 ) { | |
e81ea7b6 | 168 | t->SetStatus(AliESDtrack::kTOFout); |
2188ddfc | 169 | t->SetTOFsignal(seed->GetTOFsignal()); |
170 | t->SetTOFcluster(seed->GetTOFcluster()); | |
e81ea7b6 | 171 | Int_t tlab[3]; seed->GetTOFLabel(tlab); |
2188ddfc | 172 | t->SetTOFLabel(tlab); |
e81ea7b6 | 173 | |
174 | // Check done: | |
175 | // by calling the AliESDtrack::UpdateTrackParams, | |
176 | // the current track parameters are changed | |
177 | // and it could cause refit problems. | |
178 | // We need to update only the following track parameters: | |
179 | // the track length and expected times. | |
180 | // Removed AliESDtrack::UpdateTrackParams call | |
181 | // Called AliESDtrack::SetIntegratedTimes(...) and | |
182 | // AliESDtrack::SetIntegratedLength() routines. | |
183 | /* | |
2188ddfc | 184 | AliTOFtrack *track = new AliTOFtrack(*seed); |
2188ddfc | 185 | t->UpdateTrackParams(track,AliESDtrack::kTOFout); |
e81ea7b6 | 186 | delete track; |
187 | */ | |
188 | ||
189 | Double_t times[10]; seed->GetIntegratedTimes(times); | |
2188ddfc | 190 | t->SetIntegratedTimes(times); |
e81ea7b6 | 191 | t->SetIntegratedLength(seed->GetIntegratedLength()); |
2188ddfc | 192 | t->SetTOFsignalToT(seed->GetTOFsignalToT()); |
193 | t->SetTOFCalChannel(seed->GetTOFCalChannel()); | |
8b441e14 | 194 | t->SetTOFDeltaBC(seed->GetTOFDeltaBC()); |
195 | t->SetTOFL0L1(seed->GetTOFL0L1()); | |
2188ddfc | 196 | // |
e81ea7b6 | 197 | // Make attention, please: |
198 | // AliESDtrack::fTOFInfo array does not be stored in the AliESDs.root file | |
199 | // it is there only for a check during the reconstruction step. | |
24322e5c | 200 | Float_t info[10]; |
201 | seed->GetTOFInfo(info); | |
2188ddfc | 202 | t->SetTOFInfo(info); |
2188ddfc | 203 | } |
d88fbf15 | 204 | } |
205 | } | |
206 | ||
207 | ||
208 | //Make TOF PID | |
d88fbf15 | 209 | |
de60fa8a | 210 | fSeeds->Clear(); |
0841bd02 | 211 | fTracks->Delete(); |
d88fbf15 | 212 | return 0; |
213 | ||
214 | } | |
215 | //_________________________________________________________________________ | |
216 | void AliTOFtrackerMI::CollectESD() { | |
217 | //prepare the set of ESD tracks to be matched to clusters in TOF | |
218 | ||
d88fbf15 | 219 | TClonesArray &aTOFTrack = *fTracks; |
220 | Int_t c0=0; | |
221 | Int_t c1=0; | |
222 | for (Int_t i=0; i<fNseeds; i++) { | |
223 | ||
0841bd02 | 224 | AliESDtrack *t =(AliESDtrack*)fSeeds->At(i); |
d88fbf15 | 225 | if ((t->GetStatus()&AliESDtrack::kTPCout)==0)continue; |
226 | ||
d88fbf15 | 227 | AliTOFtrack *track = new AliTOFtrack(*t); // New |
2188ddfc | 228 | Float_t x = (Float_t)track->GetX(); //New |
229 | ||
230 | // TRD good tracks, already propagated at 371 cm | |
231 | if ( ( (t->GetStatus()&AliESDtrack::kTRDout)!=0 ) && | |
232 | ( x >= AliTOFGeometry::Rmin() ) ) { | |
233 | if ( track->PropagateToInnerTOF() ) { | |
234 | track->SetSeedIndex(i); | |
235 | t->UpdateTrackParams(track,AliESDtrack::kTOFin); | |
236 | new(aTOFTrack[fNseedsTOF]) AliTOFtrack(*track); | |
237 | fNseedsTOF++; | |
238 | c0++; | |
239 | delete track; | |
240 | } | |
d88fbf15 | 241 | } |
242 | ||
2188ddfc | 243 | // Propagate the rest of TPCbp |
d88fbf15 | 244 | else { |
2188ddfc | 245 | if ( track->PropagateToInnerTOF() ) { // temporary solution |
d88fbf15 | 246 | track->SetSeedIndex(i); |
2188ddfc | 247 | t->UpdateTrackParams(track,AliESDtrack::kTOFin); |
d88fbf15 | 248 | new(aTOFTrack[fNseedsTOF]) AliTOFtrack(*track); |
249 | fNseedsTOF++; | |
250 | c1++; | |
251 | } | |
252 | delete track; | |
253 | } | |
254 | } | |
255 | // | |
256 | // | |
257 | printf("TRD\tOn\t%d\tOff\t%d\n",c0,c1); | |
258 | ||
259 | // Sort according uncertainties on track position | |
260 | fTracks->Sort(); | |
261 | ||
262 | } | |
263 | ||
d88fbf15 | 264 | //_________________________________________________________________________ |
069bb393 | 265 | void AliTOFtrackerMI::MatchTracks( Bool_t /*mLastStep*/) const { |
d88fbf15 | 266 | return; |
267 | } | |
268 | // | |
269 | // | |
270 | //_________________________________________________________________________ | |
271 | void AliTOFtrackerMI::MatchTracksMI(Bool_t mLastStep){ | |
272 | ||
273 | //Match ESD tracks to clusters in TOF | |
2bf66a2d | 274 | const Float_t kTofOffset = 26; // time offset |
275 | const Float_t kMinQuality = -6.; // minimal quality | |
276 | const Float_t kMaxQualityD = 1.; // max delta quality if cluster used | |
277 | const Float_t kForbiddenR = 0.1; // minimal PID according TPC | |
d88fbf15 | 278 | |
279 | static const Double_t kMasses[]={ | |
280 | 0.000511, 0.105658, 0.139570, 0.493677, 0.938272, 1.875613 | |
281 | }; | |
282 | ||
283 | Int_t nSteps=(Int_t)(fTOFHeigth/0.1); | |
284 | ||
285 | //PH Arrays (moved outside of the loop) | |
286 | Float_t * trackPos[4]; | |
287 | for (Int_t ii=0; ii<4; ii++) trackPos[ii] = new Float_t[nSteps]; | |
128563f6 | 288 | Int_t * clind = new Int_t[fN]; |
d88fbf15 | 289 | |
290 | // Some init | |
53884c34 | 291 | const Int_t kNclusterMax = 1000; // related to fN value |
292 | AliTOFcluster *clusters[kNclusterMax]; | |
293 | Int_t index[kNclusterMax]; | |
294 | Float_t quality[kNclusterMax]; | |
295 | Float_t dist3D[kNclusterMax][6]; | |
296 | Double_t times[kNclusterMax][6]; | |
297 | Float_t mintimedist[kNclusterMax]; | |
298 | Float_t likelihood[kNclusterMax]; | |
299 | Float_t length[kNclusterMax]; | |
3c609b5c | 300 | Double_t tpcpid[5]; |
d88fbf15 | 301 | dist3D[0][0]=1; |
302 | ||
303 | for (Int_t i=0; i<fNseedsTOF; i++) { | |
304 | ||
305 | AliTOFtrack *track =(AliTOFtrack*)fTracks->UncheckedAt(i); | |
0841bd02 | 306 | AliESDtrack *t =(AliESDtrack*)fSeeds->At(track->GetSeedIndex()); |
d88fbf15 | 307 | Bool_t hasTime = ( (t->GetStatus()& AliESDtrack::kTIME)>0) ? kTRUE:kFALSE; // did we integrate time |
308 | Float_t trdquality = t->GetTRDQuality(); | |
309 | // | |
310 | // Normalize tpc pid | |
311 | // | |
312 | t->GetTPCpid(tpcpid); | |
313 | Double_t sumpid=0; | |
314 | for (Int_t ipid=0;ipid<5;ipid++){ | |
315 | sumpid+=tpcpid[ipid]; | |
316 | } | |
317 | for (Int_t ipid=0;ipid<5;ipid++){ | |
318 | if (sumpid>0) tpcpid[ipid]/=sumpid; | |
319 | else{ | |
320 | tpcpid[ipid]=0.2; | |
321 | } | |
322 | } | |
323 | ||
324 | if (trdquality<0) continue; // no chance | |
325 | // | |
326 | AliTOFtrack *trackTOFin =new AliTOFtrack(*track); | |
327 | // | |
328 | //propagat track to the middle of TOF | |
329 | // | |
8dacd1bb | 330 | Float_t xs = 379.2; // should be defined in the TOF geometry |
96f01799 | 331 | Double_t ymax=xs*TMath::Tan(0.5*AliTOFGeometry::GetAlpha()); |
d3c7bfac | 332 | Bool_t skip=kFALSE; |
d88fbf15 | 333 | Double_t ysect=trackTOFin->GetYat(xs,skip); |
334 | if (skip){ | |
8dacd1bb | 335 | xs = 373.; |
96f01799 | 336 | ymax=xs*TMath::Tan(0.5*AliTOFGeometry::GetAlpha()); |
d88fbf15 | 337 | ysect=trackTOFin->GetYat(xs,skip); |
338 | } | |
339 | if (ysect > ymax) { | |
96f01799 | 340 | if (!trackTOFin->Rotate(AliTOFGeometry::GetAlpha())) { |
d88fbf15 | 341 | continue; |
342 | } | |
343 | } else if (ysect <-ymax) { | |
96f01799 | 344 | if (!trackTOFin->Rotate(-AliTOFGeometry::GetAlpha())) { |
d88fbf15 | 345 | continue; |
346 | } | |
347 | } | |
348 | if(!trackTOFin->PropagateTo(xs)) { | |
349 | continue; | |
350 | } | |
351 | // | |
352 | // Determine a window around the track | |
353 | // | |
354 | Double_t x,par[5]; | |
355 | trackTOFin->GetExternalParameters(x,par); | |
356 | Double_t cov[15]; | |
357 | trackTOFin->GetExternalCovariance(cov); | |
53884c34 | 358 | |
359 | if (cov[0]<0. || cov[2]<0.) { | |
360 | AliWarning(Form("Very strange track (%d)! At least one of its covariance matrix diagonal elements is negative!",i)); | |
ecd795d8 | 361 | //delete trackTOFin; |
362 | //continue; | |
53884c34 | 363 | } |
364 | ||
d88fbf15 | 365 | Float_t scalefact=3.; |
366 | Double_t dphi= | |
367 | scalefact* | |
ecd795d8 | 368 | ((5*TMath::Sqrt(TMath::Abs(cov[0])) + 3.*fDy + 10.*TMath::Abs(par[2]))/fR); |
d88fbf15 | 369 | Double_t dz= |
370 | scalefact* | |
ecd795d8 | 371 | (5*TMath::Sqrt(TMath::Abs(cov[2])) + 3.*fDz + 10.*TMath::Abs(par[3])); |
d88fbf15 | 372 | |
373 | Double_t phi=TMath::ATan2(par[0],x) + trackTOFin->GetAlpha(); | |
374 | if (phi<-TMath::Pi())phi+=2*TMath::Pi(); | |
375 | if (phi>=TMath::Pi())phi-=2*TMath::Pi(); | |
376 | Double_t z=par[1]; | |
377 | ||
378 | Int_t nc =0; | |
379 | Int_t nfound =0; | |
380 | // find the clusters in the window of the track | |
381 | ||
382 | for (Int_t k=FindClusterIndex(z-dz); k<fN; k++) { | |
53884c34 | 383 | |
384 | if (nc>=kNclusterMax) { | |
385 | AliWarning("No more matchable clusters can be stored! Please, increase the corresponding vectors size."); | |
386 | break; | |
387 | } | |
388 | ||
d88fbf15 | 389 | AliTOFcluster *c=fClusters[k]; |
390 | if (c->GetZ() > z+dz) break; | |
391 | // if (c->IsUsed()) continue; | |
392 | ||
393 | Double_t dph=TMath::Abs(c->GetPhi()-phi); | |
394 | if (dph>TMath::Pi()) dph-=2.*TMath::Pi(); | |
395 | if (TMath::Abs(dph)>dphi) continue; | |
3c609b5c | 396 | |
128563f6 | 397 | clind[nc] = k; |
d88fbf15 | 398 | nc++; |
399 | } | |
400 | ||
53884c34 | 401 | AliDebug(1,Form(" Number of matchable TOF clusters for the track number %d: %d",i,nc)); |
402 | ||
d88fbf15 | 403 | // |
404 | // select close clusters | |
405 | // | |
406 | Double_t mom=t->GetP(); | |
407 | // Bool_t dump = kTRUE; | |
408 | for (Int_t icl=0; icl<nc; icl++){ | |
409 | Float_t distances[5]; | |
53884c34 | 410 | |
128563f6 | 411 | index[nfound]=clind[icl]; |
412 | AliTOFcluster *cluster = fClusters[clind[icl]]; | |
2bf66a2d | 413 | GetLinearDistances(trackTOFin, cluster, distances); |
d88fbf15 | 414 | dist3D[nfound][0] = distances[4]; |
415 | dist3D[nfound][1] = distances[1]; | |
416 | dist3D[nfound][2] = distances[2]; | |
417 | // cut on distance | |
418 | if (TMath::Abs(dist3D[nfound][1])>20 || TMath::Abs(dist3D[nfound][2])>20) continue; | |
419 | // | |
420 | GetLikelihood(distances[1],distances[2],cov,trackTOFin, dist3D[nfound][3], dist3D[nfound][4]); | |
421 | // | |
422 | // cut on likelihood | |
423 | if (dist3D[nfound][3]*dist3D[nfound][4]<0.00000000000001) continue; // log likelihood | |
424 | if (TMath::Log(dist3D[nfound][3]*dist3D[nfound][4])<-9) continue; // log likelihood | |
425 | // | |
426 | clusters[nfound] = cluster; | |
427 | // | |
2bf66a2d | 428 | //length and TOF updates |
d88fbf15 | 429 | trackTOFin->GetIntegratedTimes(times[nfound]); |
430 | length[nfound] = trackTOFin->GetIntegratedLength(); | |
431 | length[nfound]+=distances[4]; | |
432 | mintimedist[nfound]=1000; | |
96f01799 | 433 | Double_t tof2=AliTOFGeometry::TdcBinWidth()*cluster->GetTDC()+kTofOffset; // in ps |
d88fbf15 | 434 | // Float_t tgamma = TMath::Sqrt(cluster->GetR()*cluster->GetR()+cluster->GetZ()*cluster->GetZ())/0.03; //time for "primary" gamma |
435 | //if (trackTOFin->GetPt()<0.7 && TMath::Abs(tgamma-tof2)<350) continue; // gamma conversion candidate - TEMPORARY | |
436 | for(Int_t j=0;j<=5;j++){ | |
437 | Double_t mass=kMasses[j]; | |
438 | times[nfound][j]+=distances[4]/3e-2*TMath::Sqrt(mom*mom+mass*mass)/mom; // add time distance | |
439 | if ( TMath::Abs(times[nfound][j]-tof2)<mintimedist[nfound] && tpcpid[j]>kForbiddenR){ | |
440 | mintimedist[nfound]=TMath::Abs(times[nfound][j]-tof2); | |
441 | } | |
442 | } | |
443 | // | |
444 | Float_t liketime = TMath::Exp(-mintimedist[nfound]/90.)+0.25*TMath::Exp(-mintimedist[nfound]/180.); | |
445 | if (!hasTime) liketime=0.2; | |
446 | likelihood[nfound] = TMath::Log(dist3D[nfound][3]*dist3D[nfound][4]*liketime); | |
447 | ||
448 | if (TMath::Log(dist3D[nfound][3]*dist3D[nfound][4])<-1){ | |
449 | if (likelihood[nfound]<-9.) continue; | |
450 | } | |
451 | // | |
452 | nfound++; | |
53884c34 | 453 | } |
454 | ||
455 | AliDebug(1,Form(" Number of track points for the track number %d: %d",i,nfound)); | |
456 | ||
d88fbf15 | 457 | if (nfound == 0 ) { |
458 | fnunmatch++; | |
459 | delete trackTOFin; | |
460 | continue; | |
461 | } | |
462 | // | |
463 | //choose the best cluster | |
464 | // | |
53884c34 | 465 | //Float_t quality[kNclusterMax]; |
466 | //Int_t index[kNclusterMax]; | |
467 | for (Int_t kk=0; kk<kNclusterMax; kk++) quality[kk]=0; | |
d88fbf15 | 468 | // |
469 | AliTOFcluster * cgold=0; | |
470 | Int_t igold =-1; | |
471 | for (Int_t icl=0;icl<nfound;icl++){ | |
472 | quality[icl] = dist3D[icl][3]*dist3D[icl][4]; | |
473 | } | |
474 | TMath::Sort(nfound,quality,index,kTRUE); | |
475 | igold = index[0]; | |
476 | cgold = clusters[igold]; | |
477 | if (nfound>1 &&likelihood[index[1]]>likelihood[index[0]]){ | |
478 | if ( quality[index[0]]<quality[index[1]]+0.5){ | |
479 | igold = index[1]; | |
480 | cgold = clusters[igold]; | |
481 | } | |
482 | } | |
483 | // | |
484 | // | |
485 | Float_t qualityGold = TMath::Log(0.0000001+(quality[igold]*(0.1+TMath::Exp(-mintimedist[igold]/80.))*(0.2+trdquality))); | |
486 | if (!mLastStep){ | |
487 | if (cgold->GetQuality()<qualityGold) cgold->SetQuality(qualityGold); | |
488 | continue; | |
489 | } | |
490 | // | |
491 | if (mLastStep){ | |
492 | //signed better cluster | |
493 | if (cgold->GetQuality()>qualityGold+kMaxQualityD) continue; | |
494 | if (2.*qualityGold-cgold->GetQuality()<kMinQuality) continue; | |
495 | } | |
496 | ||
497 | Int_t inonfake=-1; | |
498 | ||
499 | for (Int_t icl=0;icl<nfound;icl++){ | |
500 | if ( | |
501 | (clusters[index[icl]]->GetLabel(0)==TMath::Abs(trackTOFin->GetLabel())) | |
502 | || | |
503 | (clusters[index[icl]]->GetLabel(1)==TMath::Abs(trackTOFin->GetLabel())) | |
504 | || | |
505 | (clusters[index[icl]]->GetLabel(2)==TMath::Abs(trackTOFin->GetLabel())) | |
506 | ) { | |
507 | inonfake = icl; | |
508 | break; | |
509 | } | |
510 | } | |
511 | fnmatch++;; | |
512 | if (inonfake==0) fngoodmatch++; | |
513 | else{ | |
514 | fnbadmatch++; | |
515 | } | |
516 | ||
517 | Int_t tlab[3]; | |
518 | tlab[0]=cgold->GetLabel(0); | |
519 | tlab[1]=cgold->GetLabel(1); | |
520 | tlab[2]=cgold->GetLabel(2); | |
521 | // Double_t tof2=25.*cgold->GetTDC()-350; // in ps | |
96f01799 | 522 | Double_t tof2=AliTOFGeometry::TdcBinWidth()*cgold->GetTDC()+kTofOffset; // in ps |
d88fbf15 | 523 | Float_t tgamma = TMath::Sqrt(cgold->GetR()*cgold->GetR()+cgold->GetZ()*cgold->GetZ())/0.03; |
24322e5c | 524 | Float_t info[10]={dist3D[igold][0], |
525 | dist3D[igold][1], | |
526 | dist3D[igold][2], | |
527 | dist3D[igold][3], | |
528 | dist3D[igold][4], | |
529 | mintimedist[igold], | |
530 | -1, | |
531 | tgamma, | |
532 | qualityGold, | |
533 | cgold->GetQuality()}; | |
d88fbf15 | 534 | // GetLinearDistances(trackTOFin,cgold,&info[6]); |
535 | if (inonfake>=0){ | |
536 | info[6] = inonfake; | |
537 | // info[7] = mintimedist[index[inonfake]]; | |
538 | } | |
539 | // | |
a533f541 | 540 | // Store quantities to be used for TOF Calibration |
7aeeaf38 | 541 | Float_t tToT=cgold->GetToT(); // in ps |
542 | t->SetTOFsignalToT(tToT); | |
a533f541 | 543 | Int_t ind[5]; |
544 | ind[0]=cgold->GetDetInd(0); | |
545 | ind[1]=cgold->GetDetInd(1); | |
546 | ind[2]=cgold->GetDetInd(2); | |
547 | ind[3]=cgold->GetDetInd(3); | |
548 | ind[4]=cgold->GetDetInd(4); | |
96f01799 | 549 | Int_t calindex = AliTOFGeometry::GetIndex(ind); |
a533f541 | 550 | t->SetTOFCalChannel(calindex); |
551 | ||
d88fbf15 | 552 | t->SetTOFInfo(info); |
553 | t->SetTOFsignal(tof2); | |
554 | t->SetTOFcluster(cgold->GetIndex()); | |
8b441e14 | 555 | t->SetTOFDeltaBC(cgold->GetDeltaBC()); |
556 | t->SetTOFL0L1(cgold->GetL0L1Latency()); | |
32ead898 | 557 | |
558 | AliDebug(2, Form("%7i %7i %10i %10i %10i %10i %7i", | |
559 | i, | |
3a646035 | 560 | fnmatch-1, |
32ead898 | 561 | TMath::Abs(trackTOFin->GetLabel()), |
562 | tlab[0], tlab[1], tlab[2], | |
563 | igold)); // AdC | |
564 | ||
d88fbf15 | 565 | AliTOFtrack *trackTOFout = new AliTOFtrack(*t); |
8dacd1bb | 566 | trackTOFout->PropagateTo(379.); |
77a9ea9a | 567 | |
568 | // Fill the track residual histograms. | |
569 | FillResiduals(trackTOFout,cgold,kFALSE); | |
570 | ||
d88fbf15 | 571 | t->UpdateTrackParams(trackTOFout,AliESDtrack::kTOFout); |
572 | t->SetIntegratedLength(length[igold]); | |
573 | t->SetIntegratedTimes(times[igold]); | |
574 | t->SetTOFLabel(tlab); | |
575 | // | |
576 | delete trackTOFin; | |
577 | delete trackTOFout; | |
578 | // | |
579 | } | |
580 | // | |
581 | // | |
582 | // | |
583 | for (Int_t ii=0; ii<4; ii++) delete [] trackPos[ii]; | |
128563f6 | 584 | delete [] clind; |
3a646035 | 585 | //delete calib; // AdC |
d88fbf15 | 586 | } |
d88fbf15 | 587 | //_________________________________________________________________________ |
128563f6 | 588 | |
d88fbf15 | 589 | Int_t AliTOFtrackerMI::LoadClusters(TTree *cTree) { |
590 | //-------------------------------------------------------------------- | |
591 | //This function loads the TOF clusters | |
592 | //-------------------------------------------------------------------- | |
593 | ||
594 | TBranch *branch=cTree->GetBranch("TOF"); | |
595 | if (!branch) { | |
596 | AliError("can't get the branch with the TOF clusters !"); | |
597 | return 1; | |
598 | } | |
599 | ||
b42a5ea1 | 600 | static TClonesArray dummy("AliTOFcluster",10000); |
601 | dummy.Clear(); | |
602 | TClonesArray *clusters=&dummy; | |
d88fbf15 | 603 | branch->SetAddress(&clusters); |
604 | ||
605 | cTree->GetEvent(0); | |
606 | Int_t nc=clusters->GetEntriesFast(); | |
607 | AliInfo(Form("Number of clusters: %d",nc)); | |
608 | ||
609 | for (Int_t i=0; i<nc; i++) { | |
610 | AliTOFcluster *c=(AliTOFcluster*)clusters->UncheckedAt(i); | |
d88fbf15 | 611 | |
16a2e36a | 612 | //PH fClusters[i]=new AliTOFcluster(*c); fN++; |
613 | fClusters[i]=c; fN++; | |
d88fbf15 | 614 | |
615 | //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))); | |
616 | //AliInfo(Form("%i %f",i, fClusters[i]->GetZ())); | |
617 | } | |
618 | ||
619 | //AliInfo(Form("Number of clusters: %d",fN)); | |
620 | ||
621 | return 0; | |
622 | } | |
623 | //_________________________________________________________________________ | |
624 | void AliTOFtrackerMI::UnloadClusters() { | |
625 | //-------------------------------------------------------------------- | |
626 | //This function unloads TOF clusters | |
627 | //-------------------------------------------------------------------- | |
628 | for (Int_t i=0; i<fN; i++) { | |
16a2e36a | 629 | //PH delete fClusters[i]; |
d88fbf15 | 630 | fClusters[i] = 0x0; |
631 | } | |
632 | fN=0; | |
633 | } | |
634 | ||
635 | ||
636 | ||
637 | ||
638 | //_________________________________________________________________________ | |
639 | Int_t AliTOFtrackerMI::InsertCluster(AliTOFcluster *c) { | |
640 | //-------------------------------------------------------------------- | |
641 | //This function adds a cluster to the array of clusters sorted in Z | |
642 | //-------------------------------------------------------------------- | |
643 | if (fN==kMaxCluster) { | |
0e46b9ae | 644 | AliError("Too many clusters !"); |
d88fbf15 | 645 | return 1; |
646 | } | |
647 | ||
648 | if (fN==0) {fClusters[fN++]=c; return 0;} | |
649 | Int_t i=FindClusterIndex(c->GetZ()); | |
650 | memmove(fClusters+i+1 ,fClusters+i,(fN-i)*sizeof(AliTOFcluster*)); | |
651 | fClusters[i]=c; fN++; | |
652 | ||
653 | return 0; | |
654 | } | |
655 | ||
656 | //_________________________________________________________________________ | |
657 | Int_t AliTOFtrackerMI::FindClusterIndex(Double_t z) const { | |
658 | //-------------------------------------------------------------------- | |
659 | // This function returns the index of the nearest cluster | |
660 | //-------------------------------------------------------------------- | |
661 | if (fN==0) return 0; | |
662 | if (z <= fClusters[0]->GetZ()) return 0; | |
663 | if (z > fClusters[fN-1]->GetZ()) return fN; | |
664 | Int_t b=0, e=fN-1, m=(b+e)/2; | |
665 | for (; b<e; m=(b+e)/2) { | |
666 | if (z > fClusters[m]->GetZ()) b=m+1; | |
667 | else e=m; | |
668 | } | |
669 | return m; | |
670 | } | |
671 | ||
24322e5c | 672 | //_________________________________________________________________________ |
d88fbf15 | 673 | Float_t AliTOFtrackerMI::GetLinearDistances(AliTOFtrack * track, AliTOFcluster *cluster, Float_t distances[5]) |
674 | { | |
675 | // | |
676 | // calclates distance between cluster and track | |
677 | // use linear aproximation | |
678 | // | |
24322e5c | 679 | //const Float_t kRaddeg = 180/3.14159265358979312; |
680 | const Float_t kRaddeg = TMath::RadToDeg(); | |
d88fbf15 | 681 | // |
682 | // Float_t tiltangle = fGeom->GetAngles(cluster->fdetIndex[1],cluster->fdetIndex[2])/kRaddeg; //tiltangle | |
683 | Int_t cind[5]; | |
684 | cind[0]= cluster->GetDetInd(0); | |
685 | cind[1]= cluster->GetDetInd(1); | |
686 | cind[2]= cluster->GetDetInd(2); | |
687 | cind[3]= cluster->GetDetInd(3); | |
688 | cind[4]= cluster->GetDetInd(4); | |
96f01799 | 689 | Float_t tiltangle = AliTOFGeometry::GetAngles(cluster->GetDetInd(1),cluster->GetDetInd(2))/kRaddeg; //tiltangle |
d88fbf15 | 690 | |
691 | Float_t cpos[3]; //cluster position | |
692 | Float_t cpos0[3]; //cluster position | |
693 | // fGeom->GetPos(cluster->fdetIndex,cpos); | |
694 | //fGeom->GetPos(cluster->fdetIndex,cpos0); | |
695 | // | |
696 | fGeom->GetPos(cind,cpos); | |
697 | fGeom->GetPos(cind,cpos0); | |
698 | ||
699 | Float_t phi = TMath::ATan2(cpos[1],cpos[0]); | |
700 | if(phi<0) phi=2.*TMath::Pi()+phi; | |
701 | // Get the local angle in the sector philoc | |
24322e5c | 702 | Float_t phiangle = (Int_t (phi*kRaddeg/20.) + 0.5)*20./kRaddeg; |
d88fbf15 | 703 | // |
704 | Double_t v0[3]; | |
705 | Double_t dir[3]; | |
6c94f330 | 706 | track->GetXYZ(v0); |
707 | track->GetPxPyPz(dir); | |
d88fbf15 | 708 | dir[0]/=track->GetP(); |
709 | dir[1]/=track->GetP(); | |
710 | dir[2]/=track->GetP(); | |
711 | // | |
712 | // | |
713 | //rotate 0 | |
714 | Float_t sinphi = TMath::Sin(phiangle); | |
715 | Float_t cosphi = TMath::Cos(phiangle); | |
716 | Float_t sinth = TMath::Sin(tiltangle); | |
717 | Float_t costh = TMath::Cos(tiltangle); | |
718 | // | |
719 | Float_t temp; | |
720 | temp = cpos[0]*cosphi+cpos[1]*sinphi; | |
721 | cpos[1] = -cpos[0]*sinphi+cpos[1]*cosphi; | |
722 | cpos[0] = temp; | |
24322e5c | 723 | temp = v0[0]*cosphi+v0[1]*sinphi; |
d88fbf15 | 724 | v0[1] = -v0[0]*sinphi+v0[1]*cosphi; |
725 | v0[0] = temp; | |
726 | // | |
727 | temp = cpos[0]*costh+cpos[2]*sinth; | |
728 | cpos[2] = -cpos[0]*sinth+cpos[2]*costh; | |
729 | cpos[0] = temp; | |
24322e5c | 730 | temp = v0[0]*costh+v0[2]*sinth; |
731 | v0[2] = -v0[0]*sinth+v0[2]*costh; | |
732 | v0[0] = temp; | |
d88fbf15 | 733 | // |
734 | // | |
735 | //rotate direction vector | |
736 | // | |
24322e5c | 737 | temp = dir[0]*cosphi+dir[1]*sinphi; |
d88fbf15 | 738 | dir[1] = -dir[0]*sinphi+dir[1]*cosphi; |
739 | dir[0] = temp; | |
740 | // | |
24322e5c | 741 | temp = dir[0]*costh+dir[2]*sinth; |
742 | dir[2] = -dir[0]*sinth+dir[2]*costh; | |
743 | dir[0] = temp; | |
d88fbf15 | 744 | // |
745 | Float_t v3[3]; | |
746 | Float_t k = (cpos[0]-v0[0])/dir[0]; | |
747 | v3[0] = v0[0]+k*dir[0]; | |
748 | v3[1] = v0[1]+k*dir[1]; | |
749 | v3[2] = v0[2]+k*dir[2]; | |
750 | // | |
751 | distances[0] = v3[0]-cpos[0]; | |
752 | distances[1] = v3[1]-cpos[1]; | |
753 | distances[2] = v3[2]-cpos[2]; | |
754 | distances[3] = TMath::Sqrt( distances[0]*distances[0]+distances[1]*distances[1]+distances[2]*distances[2]); //distance | |
755 | distances[4] = k; //length | |
756 | ||
757 | // | |
758 | // Debuging part of the matching | |
759 | // | |
24322e5c | 760 | if (track->GetLabel()==cluster->GetLabel(0) || |
761 | track->GetLabel()==cluster->GetLabel(1) || | |
762 | track->GetLabel()==cluster->GetLabel(2) ){ | |
d88fbf15 | 763 | TTreeSRedirector& cstream = *fDebugStreamer; |
764 | Float_t tdc = cluster->GetTDC(); | |
765 | cstream<<"Tracks"<< | |
766 | "TOF.="<<track<< | |
767 | "Cx="<<cpos0[0]<< | |
768 | "Cy="<<cpos0[1]<< | |
769 | "Cz="<<cpos0[2]<< | |
770 | "Dist="<<k<< | |
771 | "Dist0="<<distances[0]<< | |
772 | "Dist1="<<distances[1]<< | |
773 | "Dist2="<<distances[2]<< | |
774 | "TDC="<<tdc<< | |
775 | "\n"; | |
776 | } | |
777 | return distances[3]; | |
778 | } | |
779 | ||
24322e5c | 780 | //_________________________________________________________________________ |
069bb393 | 781 | void AliTOFtrackerMI::GetLikelihood(Float_t dy, Float_t dz, const Double_t *cov, AliTOFtrack * /*track*/, Float_t & py, Float_t &pz) const |
d88fbf15 | 782 | { |
783 | // | |
784 | // get likelihood - track covariance taken | |
785 | // 75 % of gauss with expected sigma | |
786 | // 25 % of gauss with extended sigma | |
787 | ||
788 | Double_t kMaxSigmaY = 0.6; // ~ 90% of TRD tracks | |
789 | Double_t kMaxSigmaZ = 1.2; // ~ 90% of TRD tracks | |
790 | Double_t kMeanSigmaY = 0.25; // mean TRD sigma | |
791 | Double_t kMeanSigmaZ = 0.5; // mean TRD sigma | |
792 | ||
793 | ||
794 | Float_t normwidth, normd, p0,p1; | |
38c767fa | 795 | Float_t sigmay = TMath::Max(TMath::Sqrt(TMath::Abs(cov[0])+kMeanSigmaY*kMeanSigmaY),kMaxSigmaY); |
796 | Float_t sigmaz = TMath::Max(TMath::Sqrt(TMath::Abs(cov[2])+kMeanSigmaZ*kMeanSigmaZ),kMaxSigmaZ); | |
d88fbf15 | 797 | |
798 | py=0; | |
799 | pz=0; | |
800 | // | |
801 | // py calculation - 75% admixture of original sigma - 25% tails | |
802 | // | |
803 | normwidth = fDy/sigmay; | |
804 | normd = dy/sigmay; | |
bb7e41dd | 805 | p0 = 0.5*(1+AliMathBase::ErfFast(normd-normwidth*0.5)); |
806 | p1 = 0.5*(1+AliMathBase::ErfFast(normd+normwidth*0.5)); | |
d88fbf15 | 807 | py+= 0.75*(p1-p0); |
808 | // | |
809 | normwidth = fDy/(3.*sigmay); | |
810 | normd = dy/(3.*sigmay); | |
bb7e41dd | 811 | p0 = 0.5*(1+AliMathBase::ErfFast(normd-normwidth*0.5)); |
812 | p1 = 0.5*(1+AliMathBase::ErfFast(normd+normwidth*0.5)); | |
d88fbf15 | 813 | py+= 0.25*(p1-p0); |
814 | // | |
815 | // pz calculation - 75% admixture of original sigma - 25% tails | |
816 | // | |
817 | normwidth = fDz/sigmaz; | |
818 | normd = dz/sigmaz; | |
bb7e41dd | 819 | p0 = 0.5*(1+AliMathBase::ErfFast(normd-normwidth*0.5)); |
820 | p1 = 0.5*(1+AliMathBase::ErfFast(normd+normwidth*0.5)); | |
d88fbf15 | 821 | pz+= 0.75*(p1-p0); |
822 | // | |
823 | normwidth = fDz/(3.*sigmaz); | |
824 | normd = dz/(3.*sigmaz); | |
bb7e41dd | 825 | p0 = 0.5*(1+AliMathBase::ErfFast(normd-normwidth*0.5)); |
826 | p1 = 0.5*(1+AliMathBase::ErfFast(normd+normwidth*0.5)); | |
d88fbf15 | 827 | pz+= 0.25*(p1-p0); |
828 | } | |
128563f6 | 829 | //_________________________________________________________________________ |
830 | ||
831 | void AliTOFtrackerMI::FillClusterArray(TObjArray* arr) const | |
832 | { | |
833 | // | |
834 | // Returns the TOF cluster array | |
835 | // | |
836 | ||
837 | if (fN==0) | |
838 | arr = 0x0; | |
839 | else | |
840 | for (Int_t i=0; i<fN; ++i) arr->Add(fClusters[i]); | |
841 | ||
842 | } |