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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" |
0e46b9ae | 27 | #include "TTree.h" |
d88fbf15 | 28 | #include "TTreeStream.h" |
0e46b9ae | 29 | |
af885e0f | 30 | #include "AliESDEvent.h" |
0e46b9ae | 31 | #include "AliESDtrack.h" |
32 | ||
e0ddb533 | 33 | #include "AliTOFRecoParam.h" |
3a646035 | 34 | #include "AliTOFReconstructor.h" |
0e46b9ae | 35 | #include "AliTOFcluster.h" |
96f01799 | 36 | #include "AliTOFGeometry.h" |
0e46b9ae | 37 | #include "AliTOFtrackerMI.h" |
38 | #include "AliTOFtrack.h" | |
5c7c93fa | 39 | #include "AliTOFpidESD.h" |
40 | ||
41 | class TGeoManager; | |
0e46b9ae | 42 | |
43 | extern TGeoManager *gGeoManager; | |
d88fbf15 | 44 | |
45 | ClassImp(AliTOFtrackerMI) | |
46 | ||
47 | //_____________________________________________________________________________ | |
e0ddb533 | 48 | AliTOFtrackerMI::AliTOFtrackerMI(): |
49 | fRecoParam(0x0), | |
50 | fGeom(0x0), | |
51 | fPid(0x0), | |
58d8d9a3 | 52 | fN(0), |
53 | fNseeds(0), | |
54 | fNseedsTOF(0), | |
55 | fngoodmatch(0), | |
56 | fnbadmatch(0), | |
57 | fnunmatch(0), | |
58 | fnmatch(0), | |
8dacd1bb | 59 | fR(379.), |
58d8d9a3 | 60 | fTOFHeigth(15.3), |
61 | fdCut(3.), | |
62 | fDx(1.5), | |
63 | fDy(0), | |
64 | fDz(0), | |
b42a5ea1 | 65 | fTracks(new TClonesArray("AliTOFtrack")), |
66 | fSeeds(new TClonesArray("AliESDtrack")), | |
58d8d9a3 | 67 | fDebugStreamer(0x0) |
68 | { | |
d88fbf15 | 69 | //AliTOFtrackerMI main Ctor |
70 | ||
96f01799 | 71 | fDy=AliTOFGeometry::XPad(); |
72 | fDz=AliTOFGeometry::ZPad(); | |
e0ddb533 | 73 | fDebugStreamer = new TTreeSRedirector("TOFdebug.root"); |
d88fbf15 | 74 | } |
7aeeaf38 | 75 | |
76 | //_____________________________________________________________________________ | |
d88fbf15 | 77 | AliTOFtrackerMI::~AliTOFtrackerMI(){ |
78 | // | |
79 | // | |
80 | // | |
81 | if (fDebugStreamer) { | |
82 | //fDebugStreamer->Close(); | |
83 | delete fDebugStreamer; | |
84 | } | |
e0ddb533 | 85 | delete fRecoParam; |
86 | delete fGeom; | |
87 | delete fPid; | |
b42a5ea1 | 88 | if (fTracks){ |
89 | fTracks->Delete(); | |
90 | delete fTracks; | |
91 | fTracks=0x0; | |
92 | } | |
93 | if (fSeeds){ | |
94 | fSeeds->Delete(); | |
95 | delete fSeeds; | |
96 | fSeeds=0x0; | |
97 | } | |
d88fbf15 | 98 | } |
99 | ||
d88fbf15 | 100 | //_____________________________________________________________________________ |
af885e0f | 101 | Int_t AliTOFtrackerMI::PropagateBack(AliESDEvent* event) { |
d88fbf15 | 102 | // |
103 | // Gets seeds from ESD event and Match with TOF Clusters | |
104 | // | |
105 | ||
3a646035 | 106 | // initialize RecoParam for current event |
107 | ||
108 | AliInfo("Initializing params for TOF... "); | |
109 | ||
110 | fRecoParam = AliTOFReconstructor::GetRecoParam(); // instantiate reco param from STEER... | |
90b234fe | 111 | |
3a646035 | 112 | if (fRecoParam == 0x0) { |
113 | AliFatal("No Reco Param found for TOF!!!"); | |
114 | } | |
115 | //fRecoParam->Dump(); | |
a825d829 | 116 | //if(fRecoParam->GetApplyPbPbCuts())fRecoParam=fRecoParam->GetPbPbparam(); |
90b234fe | 117 | //fRecoParam->PrintParameters(); |
118 | ||
3a646035 | 119 | Double_t parPID[2]; |
120 | parPID[0]=fRecoParam->GetTimeResolution(); | |
121 | parPID[1]=fRecoParam->GetTimeNSigma(); | |
122 | fPid=new AliTOFpidESD(parPID); | |
d88fbf15 | 123 | |
124 | //Initialise some counters | |
125 | ||
126 | fNseeds=0; | |
127 | fNseedsTOF=0; | |
128 | fngoodmatch=0; | |
129 | fnbadmatch=0; | |
130 | fnunmatch=0; | |
131 | fnmatch=0; | |
132 | ||
133 | Int_t ntrk=event->GetNumberOfTracks(); | |
134 | fNseeds = ntrk; | |
d88fbf15 | 135 | TClonesArray &aESDTrack = *fSeeds; |
136 | ||
137 | ||
138 | //Load ESD tracks into a local Array of ESD Seeds | |
139 | ||
140 | for (Int_t i=0; i<fNseeds; i++) { | |
141 | AliESDtrack *t=event->GetTrack(i); | |
142 | new(aESDTrack[i]) AliESDtrack(*t); | |
143 | } | |
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 | ||
156 | Info("PropagateBack","Number of matched tracks: %d",fnmatch); | |
157 | Info("PropagateBack","Number of good matched tracks: %d",fngoodmatch); | |
158 | Info("PropagateBack","Number of bad matched tracks: %d",fnbadmatch); | |
159 | ||
160 | //Update the matched ESD tracks | |
161 | ||
162 | for (Int_t i=0; i<ntrk; i++) { | |
163 | AliESDtrack *t=event->GetTrack(i); | |
164 | AliESDtrack *seed =(AliESDtrack*)fSeeds->UncheckedAt(i); | |
2188ddfc | 165 | |
166 | if ( (seed->GetStatus()&AliESDtrack::kTOFin)!=0 ) { | |
167 | t->SetStatus(AliESDtrack::kTOFin); | |
168 | //if(seed->GetTOFsignal()>0){ | |
169 | if ( (seed->GetStatus()&AliESDtrack::kTOFout)!=0 ) { | |
170 | t->SetTOFsignal(seed->GetTOFsignal()); | |
171 | t->SetTOFcluster(seed->GetTOFcluster()); | |
172 | Int_t tlab[3]; | |
173 | seed->GetTOFLabel(tlab); | |
174 | t->SetTOFLabel(tlab); | |
175 | AliTOFtrack *track = new AliTOFtrack(*seed); | |
176 | Float_t info[10]; | |
177 | Double_t times[10]; | |
178 | seed->GetTOFInfo(info); | |
179 | seed->GetIntegratedTimes(times); | |
180 | t->UpdateTrackParams(track,AliESDtrack::kTOFout); | |
181 | t->SetIntegratedLength(seed->GetIntegratedLength()); | |
182 | t->SetIntegratedTimes(times); | |
183 | t->SetTOFsignalToT(seed->GetTOFsignalToT()); | |
184 | t->SetTOFCalChannel(seed->GetTOFCalChannel()); | |
185 | // | |
186 | t->SetTOFInfo(info); | |
187 | delete track; | |
188 | } | |
d88fbf15 | 189 | } |
190 | } | |
191 | ||
192 | ||
193 | //Make TOF PID | |
e0ddb533 | 194 | fPid->MakePID(event); |
d88fbf15 | 195 | |
b42a5ea1 | 196 | fSeeds->Clear(); |
197 | fTracks->Clear(); | |
d88fbf15 | 198 | return 0; |
199 | ||
200 | } | |
201 | //_________________________________________________________________________ | |
202 | void AliTOFtrackerMI::CollectESD() { | |
203 | //prepare the set of ESD tracks to be matched to clusters in TOF | |
204 | ||
d88fbf15 | 205 | TClonesArray &aTOFTrack = *fTracks; |
206 | Int_t c0=0; | |
207 | Int_t c1=0; | |
208 | for (Int_t i=0; i<fNseeds; i++) { | |
209 | ||
210 | AliESDtrack *t =(AliESDtrack*)fSeeds->UncheckedAt(i); | |
211 | if ((t->GetStatus()&AliESDtrack::kTPCout)==0)continue; | |
212 | ||
d88fbf15 | 213 | AliTOFtrack *track = new AliTOFtrack(*t); // New |
2188ddfc | 214 | Float_t x = (Float_t)track->GetX(); //New |
215 | ||
216 | // TRD good tracks, already propagated at 371 cm | |
217 | if ( ( (t->GetStatus()&AliESDtrack::kTRDout)!=0 ) && | |
218 | ( x >= AliTOFGeometry::Rmin() ) ) { | |
219 | if ( track->PropagateToInnerTOF() ) { | |
220 | track->SetSeedIndex(i); | |
221 | t->UpdateTrackParams(track,AliESDtrack::kTOFin); | |
222 | new(aTOFTrack[fNseedsTOF]) AliTOFtrack(*track); | |
223 | fNseedsTOF++; | |
224 | c0++; | |
225 | delete track; | |
226 | } | |
d88fbf15 | 227 | } |
228 | ||
2188ddfc | 229 | // Propagate the rest of TPCbp |
d88fbf15 | 230 | else { |
2188ddfc | 231 | if ( track->PropagateToInnerTOF() ) { // temporary solution |
d88fbf15 | 232 | track->SetSeedIndex(i); |
2188ddfc | 233 | t->UpdateTrackParams(track,AliESDtrack::kTOFin); |
d88fbf15 | 234 | new(aTOFTrack[fNseedsTOF]) AliTOFtrack(*track); |
235 | fNseedsTOF++; | |
236 | c1++; | |
237 | } | |
238 | delete track; | |
239 | } | |
240 | } | |
241 | // | |
242 | // | |
243 | printf("TRD\tOn\t%d\tOff\t%d\n",c0,c1); | |
244 | ||
245 | // Sort according uncertainties on track position | |
246 | fTracks->Sort(); | |
247 | ||
248 | } | |
249 | ||
250 | ||
251 | ||
252 | ||
253 | ||
254 | ||
255 | ||
256 | // | |
257 | // | |
258 | //_________________________________________________________________________ | |
259 | void AliTOFtrackerMI::MatchTracks( Bool_t /*mLastStep*/){ | |
260 | return; | |
261 | } | |
262 | // | |
263 | // | |
264 | //_________________________________________________________________________ | |
265 | void AliTOFtrackerMI::MatchTracksMI(Bool_t mLastStep){ | |
266 | ||
267 | //Match ESD tracks to clusters in TOF | |
2bf66a2d | 268 | const Float_t kTofOffset = 26; // time offset |
269 | const Float_t kMinQuality = -6.; // minimal quality | |
270 | const Float_t kMaxQualityD = 1.; // max delta quality if cluster used | |
271 | const Float_t kForbiddenR = 0.1; // minimal PID according TPC | |
d88fbf15 | 272 | |
273 | static const Double_t kMasses[]={ | |
274 | 0.000511, 0.105658, 0.139570, 0.493677, 0.938272, 1.875613 | |
275 | }; | |
276 | ||
277 | Int_t nSteps=(Int_t)(fTOFHeigth/0.1); | |
278 | ||
3a646035 | 279 | //AliTOFcalib *calib = new AliTOFcalib(); // AdC |
a533f541 | 280 | |
d88fbf15 | 281 | //PH Arrays (moved outside of the loop) |
282 | Float_t * trackPos[4]; | |
283 | for (Int_t ii=0; ii<4; ii++) trackPos[ii] = new Float_t[nSteps]; | |
128563f6 | 284 | Int_t * clind = new Int_t[fN]; |
d88fbf15 | 285 | |
286 | // Some init | |
287 | ||
288 | Int_t index[1000]; | |
3c609b5c | 289 | Float_t quality[1000]; |
d88fbf15 | 290 | Float_t dist3D[1000][6]; |
291 | Double_t times[1000][6]; | |
292 | Float_t mintimedist[1000]; | |
293 | Float_t likelihood[1000]; | |
294 | Float_t length[1000]; | |
295 | AliTOFcluster *clusters[1000]; | |
3c609b5c | 296 | Double_t tpcpid[5]; |
d88fbf15 | 297 | dist3D[0][0]=1; |
298 | ||
299 | for (Int_t i=0; i<fNseedsTOF; i++) { | |
300 | ||
301 | AliTOFtrack *track =(AliTOFtrack*)fTracks->UncheckedAt(i); | |
302 | AliESDtrack *t =(AliESDtrack*)fSeeds->UncheckedAt(track->GetSeedIndex()); | |
303 | Bool_t hasTime = ( (t->GetStatus()& AliESDtrack::kTIME)>0) ? kTRUE:kFALSE; // did we integrate time | |
304 | Float_t trdquality = t->GetTRDQuality(); | |
305 | // | |
306 | // Normalize tpc pid | |
307 | // | |
308 | t->GetTPCpid(tpcpid); | |
309 | Double_t sumpid=0; | |
310 | for (Int_t ipid=0;ipid<5;ipid++){ | |
311 | sumpid+=tpcpid[ipid]; | |
312 | } | |
313 | for (Int_t ipid=0;ipid<5;ipid++){ | |
314 | if (sumpid>0) tpcpid[ipid]/=sumpid; | |
315 | else{ | |
316 | tpcpid[ipid]=0.2; | |
317 | } | |
318 | } | |
319 | ||
320 | if (trdquality<0) continue; // no chance | |
321 | // | |
322 | AliTOFtrack *trackTOFin =new AliTOFtrack(*track); | |
323 | // | |
324 | //propagat track to the middle of TOF | |
325 | // | |
8dacd1bb | 326 | Float_t xs = 379.2; // should be defined in the TOF geometry |
96f01799 | 327 | Double_t ymax=xs*TMath::Tan(0.5*AliTOFGeometry::GetAlpha()); |
d3c7bfac | 328 | Bool_t skip=kFALSE; |
d88fbf15 | 329 | Double_t ysect=trackTOFin->GetYat(xs,skip); |
330 | if (skip){ | |
8dacd1bb | 331 | xs = 373.; |
96f01799 | 332 | ymax=xs*TMath::Tan(0.5*AliTOFGeometry::GetAlpha()); |
d88fbf15 | 333 | ysect=trackTOFin->GetYat(xs,skip); |
334 | } | |
335 | if (ysect > ymax) { | |
96f01799 | 336 | if (!trackTOFin->Rotate(AliTOFGeometry::GetAlpha())) { |
d88fbf15 | 337 | continue; |
338 | } | |
339 | } else if (ysect <-ymax) { | |
96f01799 | 340 | if (!trackTOFin->Rotate(-AliTOFGeometry::GetAlpha())) { |
d88fbf15 | 341 | continue; |
342 | } | |
343 | } | |
344 | if(!trackTOFin->PropagateTo(xs)) { | |
345 | continue; | |
346 | } | |
347 | // | |
348 | // Determine a window around the track | |
349 | // | |
350 | Double_t x,par[5]; | |
351 | trackTOFin->GetExternalParameters(x,par); | |
352 | Double_t cov[15]; | |
353 | trackTOFin->GetExternalCovariance(cov); | |
354 | Float_t scalefact=3.; | |
355 | Double_t dphi= | |
356 | scalefact* | |
2bf66a2d | 357 | ((5*TMath::Sqrt(cov[0]) + 3.*fDy + 10.*TMath::Abs(par[2]))/fR); |
d88fbf15 | 358 | Double_t dz= |
359 | scalefact* | |
2bf66a2d | 360 | (5*TMath::Sqrt(cov[2]) + 3.*fDz + 10.*TMath::Abs(par[3])); |
d88fbf15 | 361 | |
362 | Double_t phi=TMath::ATan2(par[0],x) + trackTOFin->GetAlpha(); | |
363 | if (phi<-TMath::Pi())phi+=2*TMath::Pi(); | |
364 | if (phi>=TMath::Pi())phi-=2*TMath::Pi(); | |
365 | Double_t z=par[1]; | |
366 | ||
367 | Int_t nc =0; | |
368 | Int_t nfound =0; | |
369 | // find the clusters in the window of the track | |
370 | ||
371 | for (Int_t k=FindClusterIndex(z-dz); k<fN; k++) { | |
372 | AliTOFcluster *c=fClusters[k]; | |
373 | if (c->GetZ() > z+dz) break; | |
374 | // if (c->IsUsed()) continue; | |
375 | ||
376 | Double_t dph=TMath::Abs(c->GetPhi()-phi); | |
377 | if (dph>TMath::Pi()) dph-=2.*TMath::Pi(); | |
378 | if (TMath::Abs(dph)>dphi) continue; | |
3c609b5c | 379 | |
128563f6 | 380 | clind[nc] = k; |
d88fbf15 | 381 | nc++; |
382 | } | |
383 | ||
384 | // | |
385 | // select close clusters | |
386 | // | |
387 | Double_t mom=t->GetP(); | |
388 | // Bool_t dump = kTRUE; | |
389 | for (Int_t icl=0; icl<nc; icl++){ | |
390 | Float_t distances[5]; | |
391 | if (nfound>=1000) break; | |
128563f6 | 392 | index[nfound]=clind[icl]; |
393 | AliTOFcluster *cluster = fClusters[clind[icl]]; | |
2bf66a2d | 394 | GetLinearDistances(trackTOFin, cluster, distances); |
d88fbf15 | 395 | dist3D[nfound][0] = distances[4]; |
396 | dist3D[nfound][1] = distances[1]; | |
397 | dist3D[nfound][2] = distances[2]; | |
398 | // cut on distance | |
399 | if (TMath::Abs(dist3D[nfound][1])>20 || TMath::Abs(dist3D[nfound][2])>20) continue; | |
400 | // | |
401 | GetLikelihood(distances[1],distances[2],cov,trackTOFin, dist3D[nfound][3], dist3D[nfound][4]); | |
402 | // | |
403 | // cut on likelihood | |
404 | if (dist3D[nfound][3]*dist3D[nfound][4]<0.00000000000001) continue; // log likelihood | |
405 | if (TMath::Log(dist3D[nfound][3]*dist3D[nfound][4])<-9) continue; // log likelihood | |
406 | // | |
407 | clusters[nfound] = cluster; | |
408 | // | |
2bf66a2d | 409 | //length and TOF updates |
d88fbf15 | 410 | trackTOFin->GetIntegratedTimes(times[nfound]); |
411 | length[nfound] = trackTOFin->GetIntegratedLength(); | |
412 | length[nfound]+=distances[4]; | |
413 | mintimedist[nfound]=1000; | |
96f01799 | 414 | Double_t tof2=AliTOFGeometry::TdcBinWidth()*cluster->GetTDC()+kTofOffset; // in ps |
d88fbf15 | 415 | // Float_t tgamma = TMath::Sqrt(cluster->GetR()*cluster->GetR()+cluster->GetZ()*cluster->GetZ())/0.03; //time for "primary" gamma |
416 | //if (trackTOFin->GetPt()<0.7 && TMath::Abs(tgamma-tof2)<350) continue; // gamma conversion candidate - TEMPORARY | |
417 | for(Int_t j=0;j<=5;j++){ | |
418 | Double_t mass=kMasses[j]; | |
419 | times[nfound][j]+=distances[4]/3e-2*TMath::Sqrt(mom*mom+mass*mass)/mom; // add time distance | |
420 | if ( TMath::Abs(times[nfound][j]-tof2)<mintimedist[nfound] && tpcpid[j]>kForbiddenR){ | |
421 | mintimedist[nfound]=TMath::Abs(times[nfound][j]-tof2); | |
422 | } | |
423 | } | |
424 | // | |
425 | Float_t liketime = TMath::Exp(-mintimedist[nfound]/90.)+0.25*TMath::Exp(-mintimedist[nfound]/180.); | |
426 | if (!hasTime) liketime=0.2; | |
427 | likelihood[nfound] = TMath::Log(dist3D[nfound][3]*dist3D[nfound][4]*liketime); | |
428 | ||
429 | if (TMath::Log(dist3D[nfound][3]*dist3D[nfound][4])<-1){ | |
430 | if (likelihood[nfound]<-9.) continue; | |
431 | } | |
432 | // | |
433 | nfound++; | |
434 | } | |
435 | if (nfound == 0 ) { | |
436 | fnunmatch++; | |
437 | delete trackTOFin; | |
438 | continue; | |
439 | } | |
440 | // | |
441 | //choose the best cluster | |
442 | // | |
3c609b5c | 443 | //Float_t quality[1000]; |
444 | //Int_t index[1000]; | |
445 | for (Int_t kk=0; kk<1000; kk++) quality[kk]=0; | |
d88fbf15 | 446 | // |
447 | AliTOFcluster * cgold=0; | |
448 | Int_t igold =-1; | |
449 | for (Int_t icl=0;icl<nfound;icl++){ | |
450 | quality[icl] = dist3D[icl][3]*dist3D[icl][4]; | |
451 | } | |
452 | TMath::Sort(nfound,quality,index,kTRUE); | |
453 | igold = index[0]; | |
454 | cgold = clusters[igold]; | |
455 | if (nfound>1 &&likelihood[index[1]]>likelihood[index[0]]){ | |
456 | if ( quality[index[0]]<quality[index[1]]+0.5){ | |
457 | igold = index[1]; | |
458 | cgold = clusters[igold]; | |
459 | } | |
460 | } | |
461 | // | |
462 | // | |
463 | Float_t qualityGold = TMath::Log(0.0000001+(quality[igold]*(0.1+TMath::Exp(-mintimedist[igold]/80.))*(0.2+trdquality))); | |
464 | if (!mLastStep){ | |
465 | if (cgold->GetQuality()<qualityGold) cgold->SetQuality(qualityGold); | |
466 | continue; | |
467 | } | |
468 | // | |
469 | if (mLastStep){ | |
470 | //signed better cluster | |
471 | if (cgold->GetQuality()>qualityGold+kMaxQualityD) continue; | |
472 | if (2.*qualityGold-cgold->GetQuality()<kMinQuality) continue; | |
473 | } | |
474 | ||
475 | Int_t inonfake=-1; | |
476 | ||
477 | for (Int_t icl=0;icl<nfound;icl++){ | |
478 | if ( | |
479 | (clusters[index[icl]]->GetLabel(0)==TMath::Abs(trackTOFin->GetLabel())) | |
480 | || | |
481 | (clusters[index[icl]]->GetLabel(1)==TMath::Abs(trackTOFin->GetLabel())) | |
482 | || | |
483 | (clusters[index[icl]]->GetLabel(2)==TMath::Abs(trackTOFin->GetLabel())) | |
484 | ) { | |
485 | inonfake = icl; | |
486 | break; | |
487 | } | |
488 | } | |
489 | fnmatch++;; | |
490 | if (inonfake==0) fngoodmatch++; | |
491 | else{ | |
492 | fnbadmatch++; | |
493 | } | |
494 | ||
495 | Int_t tlab[3]; | |
496 | tlab[0]=cgold->GetLabel(0); | |
497 | tlab[1]=cgold->GetLabel(1); | |
498 | tlab[2]=cgold->GetLabel(2); | |
499 | // Double_t tof2=25.*cgold->GetTDC()-350; // in ps | |
96f01799 | 500 | Double_t tof2=AliTOFGeometry::TdcBinWidth()*cgold->GetTDC()+kTofOffset; // in ps |
d88fbf15 | 501 | Float_t tgamma = TMath::Sqrt(cgold->GetR()*cgold->GetR()+cgold->GetZ()*cgold->GetZ())/0.03; |
502 | Float_t info[11]={dist3D[igold][0],dist3D[igold][1],dist3D[igold][2],dist3D[igold][3],dist3D[igold][4],mintimedist[igold], | |
503 | -1,tgamma, qualityGold,cgold->GetQuality(),0}; | |
504 | // GetLinearDistances(trackTOFin,cgold,&info[6]); | |
505 | if (inonfake>=0){ | |
506 | info[6] = inonfake; | |
507 | // info[7] = mintimedist[index[inonfake]]; | |
508 | } | |
509 | // | |
a533f541 | 510 | // Store quantities to be used for TOF Calibration |
7aeeaf38 | 511 | Float_t tToT=cgold->GetToT(); // in ps |
512 | t->SetTOFsignalToT(tToT); | |
a533f541 | 513 | Int_t ind[5]; |
514 | ind[0]=cgold->GetDetInd(0); | |
515 | ind[1]=cgold->GetDetInd(1); | |
516 | ind[2]=cgold->GetDetInd(2); | |
517 | ind[3]=cgold->GetDetInd(3); | |
518 | ind[4]=cgold->GetDetInd(4); | |
96f01799 | 519 | Int_t calindex = AliTOFGeometry::GetIndex(ind); |
a533f541 | 520 | t->SetTOFCalChannel(calindex); |
521 | ||
d88fbf15 | 522 | t->SetTOFInfo(info); |
523 | t->SetTOFsignal(tof2); | |
524 | t->SetTOFcluster(cgold->GetIndex()); | |
32ead898 | 525 | |
526 | AliDebug(2, Form("%7i %7i %10i %10i %10i %10i %7i", | |
527 | i, | |
3a646035 | 528 | fnmatch-1, |
32ead898 | 529 | TMath::Abs(trackTOFin->GetLabel()), |
530 | tlab[0], tlab[1], tlab[2], | |
531 | igold)); // AdC | |
532 | ||
d88fbf15 | 533 | AliTOFtrack *trackTOFout = new AliTOFtrack(*t); |
8dacd1bb | 534 | trackTOFout->PropagateTo(379.); |
77a9ea9a | 535 | |
536 | // Fill the track residual histograms. | |
537 | FillResiduals(trackTOFout,cgold,kFALSE); | |
538 | ||
d88fbf15 | 539 | t->UpdateTrackParams(trackTOFout,AliESDtrack::kTOFout); |
540 | t->SetIntegratedLength(length[igold]); | |
541 | t->SetIntegratedTimes(times[igold]); | |
542 | t->SetTOFLabel(tlab); | |
543 | // | |
544 | delete trackTOFin; | |
545 | delete trackTOFout; | |
546 | // | |
547 | } | |
548 | // | |
549 | // | |
550 | // | |
551 | for (Int_t ii=0; ii<4; ii++) delete [] trackPos[ii]; | |
128563f6 | 552 | delete [] clind; |
3a646035 | 553 | //delete calib; // AdC |
d88fbf15 | 554 | } |
d88fbf15 | 555 | //_________________________________________________________________________ |
128563f6 | 556 | |
d88fbf15 | 557 | Int_t AliTOFtrackerMI::LoadClusters(TTree *cTree) { |
558 | //-------------------------------------------------------------------- | |
559 | //This function loads the TOF clusters | |
560 | //-------------------------------------------------------------------- | |
561 | ||
562 | TBranch *branch=cTree->GetBranch("TOF"); | |
563 | if (!branch) { | |
564 | AliError("can't get the branch with the TOF clusters !"); | |
565 | return 1; | |
566 | } | |
567 | ||
b42a5ea1 | 568 | static TClonesArray dummy("AliTOFcluster",10000); |
569 | dummy.Clear(); | |
570 | TClonesArray *clusters=&dummy; | |
d88fbf15 | 571 | branch->SetAddress(&clusters); |
572 | ||
573 | cTree->GetEvent(0); | |
574 | Int_t nc=clusters->GetEntriesFast(); | |
575 | AliInfo(Form("Number of clusters: %d",nc)); | |
576 | ||
577 | for (Int_t i=0; i<nc; i++) { | |
578 | AliTOFcluster *c=(AliTOFcluster*)clusters->UncheckedAt(i); | |
d88fbf15 | 579 | |
d88fbf15 | 580 | fClusters[i]=new AliTOFcluster(*c); fN++; |
581 | ||
582 | //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))); | |
583 | //AliInfo(Form("%i %f",i, fClusters[i]->GetZ())); | |
584 | } | |
585 | ||
586 | //AliInfo(Form("Number of clusters: %d",fN)); | |
587 | ||
588 | return 0; | |
589 | } | |
590 | //_________________________________________________________________________ | |
591 | void AliTOFtrackerMI::UnloadClusters() { | |
592 | //-------------------------------------------------------------------- | |
593 | //This function unloads TOF clusters | |
594 | //-------------------------------------------------------------------- | |
595 | for (Int_t i=0; i<fN; i++) { | |
596 | delete fClusters[i]; | |
597 | fClusters[i] = 0x0; | |
598 | } | |
599 | fN=0; | |
600 | } | |
601 | ||
602 | ||
603 | ||
604 | ||
605 | //_________________________________________________________________________ | |
606 | Int_t AliTOFtrackerMI::InsertCluster(AliTOFcluster *c) { | |
607 | //-------------------------------------------------------------------- | |
608 | //This function adds a cluster to the array of clusters sorted in Z | |
609 | //-------------------------------------------------------------------- | |
610 | if (fN==kMaxCluster) { | |
0e46b9ae | 611 | AliError("Too many clusters !"); |
d88fbf15 | 612 | return 1; |
613 | } | |
614 | ||
615 | if (fN==0) {fClusters[fN++]=c; return 0;} | |
616 | Int_t i=FindClusterIndex(c->GetZ()); | |
617 | memmove(fClusters+i+1 ,fClusters+i,(fN-i)*sizeof(AliTOFcluster*)); | |
618 | fClusters[i]=c; fN++; | |
619 | ||
620 | return 0; | |
621 | } | |
622 | ||
623 | //_________________________________________________________________________ | |
624 | Int_t AliTOFtrackerMI::FindClusterIndex(Double_t z) const { | |
625 | //-------------------------------------------------------------------- | |
626 | // This function returns the index of the nearest cluster | |
627 | //-------------------------------------------------------------------- | |
628 | if (fN==0) return 0; | |
629 | if (z <= fClusters[0]->GetZ()) return 0; | |
630 | if (z > fClusters[fN-1]->GetZ()) return fN; | |
631 | Int_t b=0, e=fN-1, m=(b+e)/2; | |
632 | for (; b<e; m=(b+e)/2) { | |
633 | if (z > fClusters[m]->GetZ()) b=m+1; | |
634 | else e=m; | |
635 | } | |
636 | return m; | |
637 | } | |
638 | ||
639 | ||
640 | ||
641 | Float_t AliTOFtrackerMI::GetLinearDistances(AliTOFtrack * track, AliTOFcluster *cluster, Float_t distances[5]) | |
642 | { | |
643 | // | |
644 | // calclates distance between cluster and track | |
645 | // use linear aproximation | |
646 | // | |
647 | const Float_t kRaddeg = 180/3.14159265358979312; | |
648 | // | |
649 | // Float_t tiltangle = fGeom->GetAngles(cluster->fdetIndex[1],cluster->fdetIndex[2])/kRaddeg; //tiltangle | |
650 | Int_t cind[5]; | |
651 | cind[0]= cluster->GetDetInd(0); | |
652 | cind[1]= cluster->GetDetInd(1); | |
653 | cind[2]= cluster->GetDetInd(2); | |
654 | cind[3]= cluster->GetDetInd(3); | |
655 | cind[4]= cluster->GetDetInd(4); | |
96f01799 | 656 | Float_t tiltangle = AliTOFGeometry::GetAngles(cluster->GetDetInd(1),cluster->GetDetInd(2))/kRaddeg; //tiltangle |
d88fbf15 | 657 | |
658 | Float_t cpos[3]; //cluster position | |
659 | Float_t cpos0[3]; //cluster position | |
660 | // fGeom->GetPos(cluster->fdetIndex,cpos); | |
661 | //fGeom->GetPos(cluster->fdetIndex,cpos0); | |
662 | // | |
663 | fGeom->GetPos(cind,cpos); | |
664 | fGeom->GetPos(cind,cpos0); | |
665 | ||
666 | Float_t phi = TMath::ATan2(cpos[1],cpos[0]); | |
667 | if(phi<0) phi=2.*TMath::Pi()+phi; | |
668 | // Get the local angle in the sector philoc | |
669 | Float_t phiangle = (Int_t (phi*kRaddeg/20.) + 0.5)*20./kRaddeg; | |
670 | // | |
671 | Double_t v0[3]; | |
672 | Double_t dir[3]; | |
6c94f330 | 673 | track->GetXYZ(v0); |
674 | track->GetPxPyPz(dir); | |
d88fbf15 | 675 | dir[0]/=track->GetP(); |
676 | dir[1]/=track->GetP(); | |
677 | dir[2]/=track->GetP(); | |
678 | // | |
679 | // | |
680 | //rotate 0 | |
681 | Float_t sinphi = TMath::Sin(phiangle); | |
682 | Float_t cosphi = TMath::Cos(phiangle); | |
683 | Float_t sinth = TMath::Sin(tiltangle); | |
684 | Float_t costh = TMath::Cos(tiltangle); | |
685 | // | |
686 | Float_t temp; | |
687 | temp = cpos[0]*cosphi+cpos[1]*sinphi; | |
688 | cpos[1] = -cpos[0]*sinphi+cpos[1]*cosphi; | |
689 | cpos[0] = temp; | |
690 | temp = v0[0]*cosphi+v0[1]*sinphi; | |
691 | v0[1] = -v0[0]*sinphi+v0[1]*cosphi; | |
692 | v0[0] = temp; | |
693 | // | |
694 | temp = cpos[0]*costh+cpos[2]*sinth; | |
695 | cpos[2] = -cpos[0]*sinth+cpos[2]*costh; | |
696 | cpos[0] = temp; | |
697 | temp = v0[0]*costh+v0[2]*sinth; | |
698 | v0[2] = -v0[0]*sinth+v0[2]*costh; | |
699 | v0[0] = temp; | |
700 | // | |
701 | // | |
702 | //rotate direction vector | |
703 | // | |
704 | temp = dir[0]*cosphi+dir[1]*sinphi; | |
705 | dir[1] = -dir[0]*sinphi+dir[1]*cosphi; | |
706 | dir[0] = temp; | |
707 | // | |
708 | temp = dir[0]*costh+dir[2]*sinth; | |
709 | dir[2] = -dir[0]*sinth+dir[2]*costh; | |
710 | dir[0] = temp; | |
711 | // | |
712 | Float_t v3[3]; | |
713 | Float_t k = (cpos[0]-v0[0])/dir[0]; | |
714 | v3[0] = v0[0]+k*dir[0]; | |
715 | v3[1] = v0[1]+k*dir[1]; | |
716 | v3[2] = v0[2]+k*dir[2]; | |
717 | // | |
718 | distances[0] = v3[0]-cpos[0]; | |
719 | distances[1] = v3[1]-cpos[1]; | |
720 | distances[2] = v3[2]-cpos[2]; | |
721 | distances[3] = TMath::Sqrt( distances[0]*distances[0]+distances[1]*distances[1]+distances[2]*distances[2]); //distance | |
722 | distances[4] = k; //length | |
723 | ||
724 | // | |
725 | // Debuging part of the matching | |
726 | // | |
727 | if (track->GetLabel()==cluster->GetLabel(0) ||track->GetLabel()==cluster->GetLabel(1) ){ | |
728 | TTreeSRedirector& cstream = *fDebugStreamer; | |
729 | Float_t tdc = cluster->GetTDC(); | |
730 | cstream<<"Tracks"<< | |
731 | "TOF.="<<track<< | |
732 | "Cx="<<cpos0[0]<< | |
733 | "Cy="<<cpos0[1]<< | |
734 | "Cz="<<cpos0[2]<< | |
735 | "Dist="<<k<< | |
736 | "Dist0="<<distances[0]<< | |
737 | "Dist1="<<distances[1]<< | |
738 | "Dist2="<<distances[2]<< | |
739 | "TDC="<<tdc<< | |
740 | "\n"; | |
741 | } | |
742 | return distances[3]; | |
743 | } | |
744 | ||
745 | ||
746 | ||
747 | void AliTOFtrackerMI::GetLikelihood(Float_t dy, Float_t dz, const Double_t *cov, AliTOFtrack * /*track*/, Float_t & py, Float_t &pz) | |
748 | { | |
749 | // | |
750 | // get likelihood - track covariance taken | |
751 | // 75 % of gauss with expected sigma | |
752 | // 25 % of gauss with extended sigma | |
753 | ||
754 | Double_t kMaxSigmaY = 0.6; // ~ 90% of TRD tracks | |
755 | Double_t kMaxSigmaZ = 1.2; // ~ 90% of TRD tracks | |
756 | Double_t kMeanSigmaY = 0.25; // mean TRD sigma | |
757 | Double_t kMeanSigmaZ = 0.5; // mean TRD sigma | |
758 | ||
759 | ||
760 | Float_t normwidth, normd, p0,p1; | |
761 | Float_t sigmay = TMath::Max(TMath::Sqrt(cov[0]+kMeanSigmaY*kMeanSigmaY),kMaxSigmaY); | |
762 | Float_t sigmaz = TMath::Max(TMath::Sqrt(cov[2]+kMeanSigmaZ*kMeanSigmaZ),kMaxSigmaZ); | |
763 | ||
764 | py=0; | |
765 | pz=0; | |
766 | // | |
767 | // py calculation - 75% admixture of original sigma - 25% tails | |
768 | // | |
769 | normwidth = fDy/sigmay; | |
770 | normd = dy/sigmay; | |
771 | p0 = 0.5*(1+TMath::Erf(normd-normwidth*0.5)); | |
772 | p1 = 0.5*(1+TMath::Erf(normd+normwidth*0.5)); | |
773 | py+= 0.75*(p1-p0); | |
774 | // | |
775 | normwidth = fDy/(3.*sigmay); | |
776 | normd = dy/(3.*sigmay); | |
777 | p0 = 0.5*(1+TMath::Erf(normd-normwidth*0.5)); | |
778 | p1 = 0.5*(1+TMath::Erf(normd+normwidth*0.5)); | |
779 | py+= 0.25*(p1-p0); | |
780 | // | |
781 | // pz calculation - 75% admixture of original sigma - 25% tails | |
782 | // | |
783 | normwidth = fDz/sigmaz; | |
784 | normd = dz/sigmaz; | |
785 | p0 = 0.5*(1+TMath::Erf(normd-normwidth*0.5)); | |
786 | p1 = 0.5*(1+TMath::Erf(normd+normwidth*0.5)); | |
787 | pz+= 0.75*(p1-p0); | |
788 | // | |
789 | normwidth = fDz/(3.*sigmaz); | |
790 | normd = dz/(3.*sigmaz); | |
791 | p0 = 0.5*(1+TMath::Erf(normd-normwidth*0.5)); | |
792 | p1 = 0.5*(1+TMath::Erf(normd+normwidth*0.5)); | |
793 | pz+= 0.25*(p1-p0); | |
794 | } | |
128563f6 | 795 | //_________________________________________________________________________ |
796 | ||
797 | void AliTOFtrackerMI::FillClusterArray(TObjArray* arr) const | |
798 | { | |
799 | // | |
800 | // Returns the TOF cluster array | |
801 | // | |
802 | ||
803 | if (fN==0) | |
804 | arr = 0x0; | |
805 | else | |
806 | for (Int_t i=0; i<fN; ++i) arr->Add(fClusters[i]); | |
807 | ||
808 | } |