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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 "TGeoManager.h" |
28 | #include "TTree.h" | |
d88fbf15 | 29 | #include "TTreeStream.h" |
0e46b9ae | 30 | |
31 | #include "AliRun.h" | |
32 | #include "AliESD.h" | |
33 | #include "AliESDtrack.h" | |
34 | ||
e0ddb533 | 35 | #include "AliTOFRecoParam.h" |
a533f541 | 36 | #include "AliTOFcalib.h" |
0e46b9ae | 37 | #include "AliTOFcluster.h" |
e0ddb533 | 38 | #include "AliTOFGeometryV5.h" |
0e46b9ae | 39 | #include "AliTOFtrackerMI.h" |
40 | #include "AliTOFtrack.h" | |
41 | ||
42 | extern TGeoManager *gGeoManager; | |
d88fbf15 | 43 | |
44 | ClassImp(AliTOFtrackerMI) | |
45 | ||
46 | //_____________________________________________________________________________ | |
e0ddb533 | 47 | AliTOFtrackerMI::AliTOFtrackerMI(): |
48 | fRecoParam(0x0), | |
49 | fGeom(0x0), | |
50 | fPid(0x0), | |
58d8d9a3 | 51 | fN(0), |
52 | fNseeds(0), | |
53 | fNseedsTOF(0), | |
54 | fngoodmatch(0), | |
55 | fnbadmatch(0), | |
56 | fnunmatch(0), | |
57 | fnmatch(0), | |
58 | fR(378.), | |
59 | fTOFHeigth(15.3), | |
60 | fdCut(3.), | |
61 | fDx(1.5), | |
62 | fDy(0), | |
63 | fDz(0), | |
64 | fTracks(0x0), | |
65 | fSeeds(0x0), | |
66 | fDebugStreamer(0x0) | |
67 | { | |
d88fbf15 | 68 | //AliTOFtrackerMI main Ctor |
69 | ||
e0ddb533 | 70 | fRecoParam=new AliTOFRecoParam(); |
71 | fGeom=new AliTOFGeometryV5(); | |
72 | Double_t parPID[2]; | |
73 | parPID[0]=fRecoParam->GetTimeResolution(); | |
74 | parPID[1]=fRecoParam->GetTimeNSigma(); | |
75 | fPid=new AliTOFpidESD(parPID); | |
76 | fDy=fGeom->XPad(); | |
77 | fDz=fGeom->ZPad(); | |
78 | fDebugStreamer = new TTreeSRedirector("TOFdebug.root"); | |
d88fbf15 | 79 | } |
80 | //_____________________________________________________________________________ | |
58d8d9a3 | 81 | AliTOFtrackerMI::AliTOFtrackerMI(const AliTOFtrackerMI &t): |
82 | AliTracker(), | |
e0ddb533 | 83 | fRecoParam(0x0), |
58d8d9a3 | 84 | fGeom(0x0), |
e0ddb533 | 85 | fPid(0x0), |
58d8d9a3 | 86 | fN(0), |
87 | fNseeds(0), | |
88 | fNseedsTOF(0), | |
89 | fngoodmatch(0), | |
90 | fnbadmatch(0), | |
91 | fnunmatch(0), | |
92 | fnmatch(0), | |
93 | fR(378.), | |
94 | fTOFHeigth(15.3), | |
95 | fdCut(3.), | |
96 | fDx(1.5), | |
97 | fDy(0), | |
98 | fDz(0), | |
99 | fTracks(0x0), | |
100 | fSeeds(0x0), | |
101 | fDebugStreamer(0x0) | |
102 | { | |
d88fbf15 | 103 | //AliTOFtrackerMI copy Ctor |
104 | ||
d88fbf15 | 105 | fNseeds=t.fNseeds; |
106 | fNseedsTOF=t.fNseedsTOF; | |
107 | fngoodmatch=t.fngoodmatch; | |
108 | fnbadmatch=t.fnbadmatch; | |
109 | fnunmatch=t.fnunmatch; | |
110 | fnmatch=t.fnmatch; | |
e0ddb533 | 111 | fRecoParam = t.fRecoParam; |
d88fbf15 | 112 | fGeom = t.fGeom; |
e0ddb533 | 113 | fPid = t.fPid; |
d88fbf15 | 114 | fR=t.fR; |
115 | fTOFHeigth=t.fTOFHeigth; | |
116 | fdCut=t.fdCut; | |
117 | fDy=t.fDy; | |
118 | fDz=t.fDz; | |
119 | fDx=1.5; | |
120 | fSeeds=t.fSeeds; | |
121 | fTracks=t.fTracks; | |
122 | fN=t.fN; | |
123 | } | |
124 | ||
125 | //_________________________________________________________________________________ | |
7aeeaf38 | 126 | AliTOFtrackerMI& AliTOFtrackerMI::operator=(const AliTOFtrackerMI &t) |
127 | { | |
128 | //AliTOFtrackerMI assignment operator | |
129 | ||
7aeeaf38 | 130 | this->fNseeds=t.fNseeds; |
131 | this->fNseedsTOF=t.fNseedsTOF; | |
132 | this->fngoodmatch=t.fngoodmatch; | |
133 | this->fnbadmatch=t.fnbadmatch; | |
134 | this->fnunmatch=t.fnunmatch; | |
135 | this->fnmatch=t.fnmatch; | |
e0ddb533 | 136 | this->fRecoParam = t.fRecoParam; |
7aeeaf38 | 137 | this->fGeom = t.fGeom; |
e0ddb533 | 138 | this->fPid = t.fPid; |
7aeeaf38 | 139 | this->fR=t.fR; |
140 | this->fTOFHeigth=t.fTOFHeigth; | |
141 | this->fdCut=t.fdCut; | |
142 | this->fDy=t.fDy; | |
143 | this->fDz=t.fDz; | |
144 | this->fDx=t.fDx; | |
145 | this->fSeeds=t.fSeeds; | |
146 | this->fTracks=t.fTracks; | |
147 | this->fN=t.fN; | |
148 | return *this; | |
149 | ||
150 | } | |
151 | ||
152 | //_____________________________________________________________________________ | |
d88fbf15 | 153 | AliTOFtrackerMI::~AliTOFtrackerMI(){ |
154 | // | |
155 | // | |
156 | // | |
157 | if (fDebugStreamer) { | |
158 | //fDebugStreamer->Close(); | |
159 | delete fDebugStreamer; | |
160 | } | |
e0ddb533 | 161 | delete fRecoParam; |
162 | delete fGeom; | |
163 | delete fPid; | |
d88fbf15 | 164 | } |
165 | ||
d88fbf15 | 166 | //_____________________________________________________________________________ |
167 | Int_t AliTOFtrackerMI::PropagateBack(AliESD* event) { | |
168 | // | |
169 | // Gets seeds from ESD event and Match with TOF Clusters | |
170 | // | |
171 | ||
172 | ||
173 | //Initialise some counters | |
174 | ||
175 | fNseeds=0; | |
176 | fNseedsTOF=0; | |
177 | fngoodmatch=0; | |
178 | fnbadmatch=0; | |
179 | fnunmatch=0; | |
180 | fnmatch=0; | |
181 | ||
182 | Int_t ntrk=event->GetNumberOfTracks(); | |
183 | fNseeds = ntrk; | |
184 | fSeeds= new TClonesArray("AliESDtrack"); | |
185 | TClonesArray &aESDTrack = *fSeeds; | |
186 | ||
187 | ||
188 | //Load ESD tracks into a local Array of ESD Seeds | |
189 | ||
190 | for (Int_t i=0; i<fNseeds; i++) { | |
191 | AliESDtrack *t=event->GetTrack(i); | |
192 | new(aESDTrack[i]) AliESDtrack(*t); | |
193 | } | |
194 | ||
195 | //Prepare ESD tracks candidates for TOF Matching | |
196 | CollectESD(); | |
197 | ||
198 | //First Step with Strict Matching Criterion | |
199 | //MatchTracks(kFALSE); | |
200 | ||
201 | //Second Step with Looser Matching Criterion | |
202 | //MatchTracks(kTRUE); | |
203 | MatchTracksMI(kFALSE); // assign track to clusters | |
204 | MatchTracksMI(kTRUE); // assign clusters to esd | |
205 | ||
206 | Info("PropagateBack","Number of matched tracks: %d",fnmatch); | |
207 | Info("PropagateBack","Number of good matched tracks: %d",fngoodmatch); | |
208 | Info("PropagateBack","Number of bad matched tracks: %d",fnbadmatch); | |
209 | ||
210 | //Update the matched ESD tracks | |
211 | ||
212 | for (Int_t i=0; i<ntrk; i++) { | |
213 | AliESDtrack *t=event->GetTrack(i); | |
214 | AliESDtrack *seed =(AliESDtrack*)fSeeds->UncheckedAt(i); | |
215 | if(seed->GetTOFsignal()>0){ | |
216 | t->SetTOFsignal(seed->GetTOFsignal()); | |
217 | t->SetTOFcluster(seed->GetTOFcluster()); | |
218 | Int_t tlab[3]; | |
219 | seed->GetTOFLabel(tlab); | |
220 | t->SetTOFLabel(tlab); | |
221 | AliTOFtrack *track = new AliTOFtrack(*seed); | |
222 | Float_t info[10]; | |
223 | Double_t times[10]; | |
224 | seed->GetTOFInfo(info); | |
225 | seed->GetIntegratedTimes(times); | |
226 | t->UpdateTrackParams(track,AliESDtrack::kTOFout); | |
227 | t->SetIntegratedLength(seed->GetIntegratedLength()); | |
228 | t->SetIntegratedTimes(times); | |
a533f541 | 229 | t->SetTOFsignalToT(seed->GetTOFsignalToT()); |
230 | t->SetTOFCalChannel(seed->GetTOFCalChannel()); | |
d88fbf15 | 231 | // |
232 | t->SetTOFInfo(info); | |
233 | delete track; | |
234 | } | |
235 | } | |
236 | ||
237 | ||
238 | //Make TOF PID | |
e0ddb533 | 239 | fPid->MakePID(event); |
d88fbf15 | 240 | |
241 | if (fSeeds) { | |
242 | fSeeds->Delete(); | |
243 | delete fSeeds; | |
244 | fSeeds = 0x0; | |
245 | } | |
246 | if (fTracks) { | |
247 | fTracks->Delete(); | |
248 | delete fTracks; | |
249 | fTracks = 0x0; | |
250 | } | |
251 | return 0; | |
252 | ||
253 | } | |
254 | //_________________________________________________________________________ | |
255 | void AliTOFtrackerMI::CollectESD() { | |
256 | //prepare the set of ESD tracks to be matched to clusters in TOF | |
257 | ||
258 | fTracks= new TClonesArray("AliTOFtrack"); | |
259 | TClonesArray &aTOFTrack = *fTracks; | |
260 | Int_t c0=0; | |
261 | Int_t c1=0; | |
262 | for (Int_t i=0; i<fNseeds; i++) { | |
263 | ||
264 | AliESDtrack *t =(AliESDtrack*)fSeeds->UncheckedAt(i); | |
265 | if ((t->GetStatus()&AliESDtrack::kTPCout)==0)continue; | |
266 | ||
267 | // TRD good tracks, already propagated at 371 cm | |
268 | ||
269 | AliTOFtrack *track = new AliTOFtrack(*t); // New | |
270 | Double_t x = track->GetX(); //New | |
271 | ||
272 | if (((t->GetStatus()&AliESDtrack::kTRDout)!=0 ) && | |
d3c7bfac | 273 | ( x >= fGeom->RinTOF()) ){ |
d88fbf15 | 274 | track->SetSeedIndex(i); |
275 | t->UpdateTrackParams(track,AliESDtrack::kTOFout); | |
276 | new(aTOFTrack[fNseedsTOF]) AliTOFtrack(*track); | |
277 | fNseedsTOF++; | |
278 | c0++; | |
279 | delete track; | |
280 | } | |
281 | ||
282 | // Propagate the rest of TPCbp | |
283 | ||
284 | else { | |
e0ddb533 | 285 | if(track->PropagateToInnerTOF()){ // temporary solution |
d88fbf15 | 286 | track->SetSeedIndex(i); |
287 | t->UpdateTrackParams(track,AliESDtrack::kTOFout); | |
288 | new(aTOFTrack[fNseedsTOF]) AliTOFtrack(*track); | |
289 | fNseedsTOF++; | |
290 | c1++; | |
291 | } | |
292 | delete track; | |
293 | } | |
294 | } | |
295 | // | |
296 | // | |
297 | printf("TRD\tOn\t%d\tOff\t%d\n",c0,c1); | |
298 | ||
299 | // Sort according uncertainties on track position | |
300 | fTracks->Sort(); | |
301 | ||
302 | } | |
303 | ||
304 | ||
305 | ||
306 | ||
307 | ||
308 | ||
309 | ||
310 | // | |
311 | // | |
312 | //_________________________________________________________________________ | |
313 | void AliTOFtrackerMI::MatchTracks( Bool_t /*mLastStep*/){ | |
314 | return; | |
315 | } | |
316 | // | |
317 | // | |
318 | //_________________________________________________________________________ | |
319 | void AliTOFtrackerMI::MatchTracksMI(Bool_t mLastStep){ | |
320 | ||
321 | //Match ESD tracks to clusters in TOF | |
322 | const Float_t kTofOffset = 26; // time offset | |
323 | const Float_t kMinQuality = -6.; // minimal quality | |
324 | const Float_t kMaxQualityD = 1.; // max delta quality if cluster used | |
325 | const Float_t kForbiddenR = 0.1; // minimal PID according TPC | |
326 | ||
327 | static const Double_t kMasses[]={ | |
328 | 0.000511, 0.105658, 0.139570, 0.493677, 0.938272, 1.875613 | |
329 | }; | |
330 | ||
331 | Int_t nSteps=(Int_t)(fTOFHeigth/0.1); | |
332 | ||
a533f541 | 333 | AliTOFcalib *calib = new AliTOFcalib(fGeom); |
334 | ||
d88fbf15 | 335 | //PH Arrays (moved outside of the loop) |
336 | Float_t * trackPos[4]; | |
337 | for (Int_t ii=0; ii<4; ii++) trackPos[ii] = new Float_t[nSteps]; | |
338 | Int_t * clind[6]; | |
339 | for (Int_t ii=0;ii<6;ii++) clind[ii] = new Int_t[fN]; | |
340 | ||
341 | // Some init | |
342 | ||
343 | Int_t index[1000]; | |
344 | Float_t dist3D[1000][6]; | |
345 | Double_t times[1000][6]; | |
346 | Float_t mintimedist[1000]; | |
347 | Float_t likelihood[1000]; | |
348 | Float_t length[1000]; | |
349 | AliTOFcluster *clusters[1000]; | |
350 | Double_t tpcpid[5]; | |
351 | dist3D[0][0]=1; | |
352 | ||
353 | for (Int_t i=0; i<fNseedsTOF; i++) { | |
354 | ||
355 | AliTOFtrack *track =(AliTOFtrack*)fTracks->UncheckedAt(i); | |
356 | AliESDtrack *t =(AliESDtrack*)fSeeds->UncheckedAt(track->GetSeedIndex()); | |
357 | Bool_t hasTime = ( (t->GetStatus()& AliESDtrack::kTIME)>0) ? kTRUE:kFALSE; // did we integrate time | |
358 | Float_t trdquality = t->GetTRDQuality(); | |
359 | // | |
360 | // Normalize tpc pid | |
361 | // | |
362 | t->GetTPCpid(tpcpid); | |
363 | Double_t sumpid=0; | |
364 | for (Int_t ipid=0;ipid<5;ipid++){ | |
365 | sumpid+=tpcpid[ipid]; | |
366 | } | |
367 | for (Int_t ipid=0;ipid<5;ipid++){ | |
368 | if (sumpid>0) tpcpid[ipid]/=sumpid; | |
369 | else{ | |
370 | tpcpid[ipid]=0.2; | |
371 | } | |
372 | } | |
373 | ||
374 | if (trdquality<0) continue; // no chance | |
375 | // | |
376 | AliTOFtrack *trackTOFin =new AliTOFtrack(*track); | |
377 | // | |
378 | //propagat track to the middle of TOF | |
379 | // | |
d3c7bfac | 380 | Float_t xs = 378.2; // should be defined in the TOF geometry |
e0ddb533 | 381 | Double_t ymax=xs*TMath::Tan(0.5*fGeom->GetAlpha()); |
d3c7bfac | 382 | Bool_t skip=kFALSE; |
d88fbf15 | 383 | Double_t ysect=trackTOFin->GetYat(xs,skip); |
384 | if (skip){ | |
385 | xs = 372.; | |
e0ddb533 | 386 | ymax=xs*TMath::Tan(0.5*fGeom->GetAlpha()); |
d88fbf15 | 387 | ysect=trackTOFin->GetYat(xs,skip); |
388 | } | |
389 | if (ysect > ymax) { | |
e0ddb533 | 390 | if (!trackTOFin->Rotate(fGeom->GetAlpha())) { |
d88fbf15 | 391 | continue; |
392 | } | |
393 | } else if (ysect <-ymax) { | |
e0ddb533 | 394 | if (!trackTOFin->Rotate(-fGeom->GetAlpha())) { |
d88fbf15 | 395 | continue; |
396 | } | |
397 | } | |
398 | if(!trackTOFin->PropagateTo(xs)) { | |
399 | continue; | |
400 | } | |
401 | // | |
402 | // Determine a window around the track | |
403 | // | |
404 | Double_t x,par[5]; | |
405 | trackTOFin->GetExternalParameters(x,par); | |
406 | Double_t cov[15]; | |
407 | trackTOFin->GetExternalCovariance(cov); | |
408 | Float_t scalefact=3.; | |
409 | Double_t dphi= | |
410 | scalefact* | |
411 | ((5*TMath::Sqrt(cov[0]) + 3.*fDy +10.*TMath::Abs(par[2]))/fR); | |
412 | Double_t dz= | |
413 | scalefact* | |
414 | (5*TMath::Sqrt(cov[2]) + 3.*fDz +10.*TMath::Abs(par[3])); | |
415 | ||
416 | Double_t phi=TMath::ATan2(par[0],x) + trackTOFin->GetAlpha(); | |
417 | if (phi<-TMath::Pi())phi+=2*TMath::Pi(); | |
418 | if (phi>=TMath::Pi())phi-=2*TMath::Pi(); | |
419 | Double_t z=par[1]; | |
420 | ||
421 | Int_t nc =0; | |
422 | Int_t nfound =0; | |
423 | // find the clusters in the window of the track | |
424 | ||
425 | for (Int_t k=FindClusterIndex(z-dz); k<fN; k++) { | |
426 | AliTOFcluster *c=fClusters[k]; | |
427 | if (c->GetZ() > z+dz) break; | |
428 | // if (c->IsUsed()) continue; | |
429 | ||
430 | Double_t dph=TMath::Abs(c->GetPhi()-phi); | |
431 | if (dph>TMath::Pi()) dph-=2.*TMath::Pi(); | |
432 | if (TMath::Abs(dph)>dphi) continue; | |
433 | ||
434 | clind[0][nc] = c->GetDetInd(0); | |
435 | clind[1][nc] = c->GetDetInd(1); | |
436 | clind[2][nc] = c->GetDetInd(2); | |
437 | clind[3][nc] = c->GetDetInd(3); | |
438 | clind[4][nc] = c->GetDetInd(4); | |
439 | clind[5][nc] = k; | |
440 | nc++; | |
441 | } | |
442 | ||
443 | // | |
444 | // select close clusters | |
445 | // | |
446 | Double_t mom=t->GetP(); | |
447 | // Bool_t dump = kTRUE; | |
448 | for (Int_t icl=0; icl<nc; icl++){ | |
449 | Float_t distances[5]; | |
450 | if (nfound>=1000) break; | |
451 | index[nfound]=clind[5][icl]; | |
452 | AliTOFcluster *cluster = fClusters[clind[5][icl]]; | |
453 | GetLinearDistances(trackTOFin,cluster, distances); | |
454 | dist3D[nfound][0] = distances[4]; | |
455 | dist3D[nfound][1] = distances[1]; | |
456 | dist3D[nfound][2] = distances[2]; | |
457 | // cut on distance | |
458 | if (TMath::Abs(dist3D[nfound][1])>20 || TMath::Abs(dist3D[nfound][2])>20) continue; | |
459 | // | |
460 | GetLikelihood(distances[1],distances[2],cov,trackTOFin, dist3D[nfound][3], dist3D[nfound][4]); | |
461 | // | |
462 | // cut on likelihood | |
463 | if (dist3D[nfound][3]*dist3D[nfound][4]<0.00000000000001) continue; // log likelihood | |
464 | if (TMath::Log(dist3D[nfound][3]*dist3D[nfound][4])<-9) continue; // log likelihood | |
465 | // | |
466 | clusters[nfound] = cluster; | |
467 | // | |
468 | //length and TOF updates | |
469 | trackTOFin->GetIntegratedTimes(times[nfound]); | |
470 | length[nfound] = trackTOFin->GetIntegratedLength(); | |
471 | length[nfound]+=distances[4]; | |
472 | mintimedist[nfound]=1000; | |
e0ddb533 | 473 | Double_t tof2=fGeom->TdcBinWidth()*cluster->GetTDC()+kTofOffset; // in ps |
d88fbf15 | 474 | // Float_t tgamma = TMath::Sqrt(cluster->GetR()*cluster->GetR()+cluster->GetZ()*cluster->GetZ())/0.03; //time for "primary" gamma |
475 | //if (trackTOFin->GetPt()<0.7 && TMath::Abs(tgamma-tof2)<350) continue; // gamma conversion candidate - TEMPORARY | |
476 | for(Int_t j=0;j<=5;j++){ | |
477 | Double_t mass=kMasses[j]; | |
478 | times[nfound][j]+=distances[4]/3e-2*TMath::Sqrt(mom*mom+mass*mass)/mom; // add time distance | |
479 | if ( TMath::Abs(times[nfound][j]-tof2)<mintimedist[nfound] && tpcpid[j]>kForbiddenR){ | |
480 | mintimedist[nfound]=TMath::Abs(times[nfound][j]-tof2); | |
481 | } | |
482 | } | |
483 | // | |
484 | Float_t liketime = TMath::Exp(-mintimedist[nfound]/90.)+0.25*TMath::Exp(-mintimedist[nfound]/180.); | |
485 | if (!hasTime) liketime=0.2; | |
486 | likelihood[nfound] = TMath::Log(dist3D[nfound][3]*dist3D[nfound][4]*liketime); | |
487 | ||
488 | if (TMath::Log(dist3D[nfound][3]*dist3D[nfound][4])<-1){ | |
489 | if (likelihood[nfound]<-9.) continue; | |
490 | } | |
491 | // | |
492 | nfound++; | |
493 | } | |
494 | if (nfound == 0 ) { | |
495 | fnunmatch++; | |
496 | delete trackTOFin; | |
497 | continue; | |
498 | } | |
499 | // | |
500 | //choose the best cluster | |
501 | // | |
502 | Float_t quality[1000]; | |
503 | Int_t index[1000]; | |
504 | // | |
505 | AliTOFcluster * cgold=0; | |
506 | Int_t igold =-1; | |
507 | for (Int_t icl=0;icl<nfound;icl++){ | |
508 | quality[icl] = dist3D[icl][3]*dist3D[icl][4]; | |
509 | } | |
510 | TMath::Sort(nfound,quality,index,kTRUE); | |
511 | igold = index[0]; | |
512 | cgold = clusters[igold]; | |
513 | if (nfound>1 &&likelihood[index[1]]>likelihood[index[0]]){ | |
514 | if ( quality[index[0]]<quality[index[1]]+0.5){ | |
515 | igold = index[1]; | |
516 | cgold = clusters[igold]; | |
517 | } | |
518 | } | |
519 | // | |
520 | // | |
521 | Float_t qualityGold = TMath::Log(0.0000001+(quality[igold]*(0.1+TMath::Exp(-mintimedist[igold]/80.))*(0.2+trdquality))); | |
522 | if (!mLastStep){ | |
523 | if (cgold->GetQuality()<qualityGold) cgold->SetQuality(qualityGold); | |
524 | continue; | |
525 | } | |
526 | // | |
527 | if (mLastStep){ | |
528 | //signed better cluster | |
529 | if (cgold->GetQuality()>qualityGold+kMaxQualityD) continue; | |
530 | if (2.*qualityGold-cgold->GetQuality()<kMinQuality) continue; | |
531 | } | |
532 | ||
533 | Int_t inonfake=-1; | |
534 | ||
535 | for (Int_t icl=0;icl<nfound;icl++){ | |
536 | if ( | |
537 | (clusters[index[icl]]->GetLabel(0)==TMath::Abs(trackTOFin->GetLabel())) | |
538 | || | |
539 | (clusters[index[icl]]->GetLabel(1)==TMath::Abs(trackTOFin->GetLabel())) | |
540 | || | |
541 | (clusters[index[icl]]->GetLabel(2)==TMath::Abs(trackTOFin->GetLabel())) | |
542 | ) { | |
543 | inonfake = icl; | |
544 | break; | |
545 | } | |
546 | } | |
547 | fnmatch++;; | |
548 | if (inonfake==0) fngoodmatch++; | |
549 | else{ | |
550 | fnbadmatch++; | |
551 | } | |
552 | ||
553 | Int_t tlab[3]; | |
554 | tlab[0]=cgold->GetLabel(0); | |
555 | tlab[1]=cgold->GetLabel(1); | |
556 | tlab[2]=cgold->GetLabel(2); | |
557 | // Double_t tof2=25.*cgold->GetTDC()-350; // in ps | |
e0ddb533 | 558 | Double_t tof2=fGeom->TdcBinWidth()*cgold->GetTDC()+kTofOffset; // in ps |
d88fbf15 | 559 | Float_t tgamma = TMath::Sqrt(cgold->GetR()*cgold->GetR()+cgold->GetZ()*cgold->GetZ())/0.03; |
560 | Float_t info[11]={dist3D[igold][0],dist3D[igold][1],dist3D[igold][2],dist3D[igold][3],dist3D[igold][4],mintimedist[igold], | |
561 | -1,tgamma, qualityGold,cgold->GetQuality(),0}; | |
562 | // GetLinearDistances(trackTOFin,cgold,&info[6]); | |
563 | if (inonfake>=0){ | |
564 | info[6] = inonfake; | |
565 | // info[7] = mintimedist[index[inonfake]]; | |
566 | } | |
567 | // | |
a533f541 | 568 | // Store quantities to be used for TOF Calibration |
7aeeaf38 | 569 | Float_t tToT=cgold->GetToT(); // in ps |
570 | t->SetTOFsignalToT(tToT); | |
a533f541 | 571 | Int_t ind[5]; |
572 | ind[0]=cgold->GetDetInd(0); | |
573 | ind[1]=cgold->GetDetInd(1); | |
574 | ind[2]=cgold->GetDetInd(2); | |
575 | ind[3]=cgold->GetDetInd(3); | |
576 | ind[4]=cgold->GetDetInd(4); | |
577 | Int_t calindex = calib->GetIndex(ind); | |
578 | t->SetTOFCalChannel(calindex); | |
579 | ||
d88fbf15 | 580 | t->SetTOFInfo(info); |
581 | t->SetTOFsignal(tof2); | |
582 | t->SetTOFcluster(cgold->GetIndex()); | |
583 | AliTOFtrack *trackTOFout = new AliTOFtrack(*t); | |
584 | trackTOFout->PropagateTo(378.); | |
585 | t->UpdateTrackParams(trackTOFout,AliESDtrack::kTOFout); | |
586 | t->SetIntegratedLength(length[igold]); | |
587 | t->SetIntegratedTimes(times[igold]); | |
588 | t->SetTOFLabel(tlab); | |
589 | // | |
590 | delete trackTOFin; | |
591 | delete trackTOFout; | |
592 | // | |
593 | } | |
594 | // | |
595 | // | |
596 | // | |
597 | for (Int_t ii=0; ii<4; ii++) delete [] trackPos[ii]; | |
598 | for (Int_t ii=0;ii<6;ii++) delete [] clind[ii]; | |
a533f541 | 599 | delete calib; |
d88fbf15 | 600 | } |
601 | ||
602 | ||
603 | ||
604 | ||
605 | // //_________________________________________________________________________ | |
606 | // Int_t AliTOFtrackerMI::LoadClusters(TTree *dTree) { | |
607 | // //-------------------------------------------------------------------- | |
608 | // //This function loads the TOF clusters | |
609 | // //-------------------------------------------------------------------- | |
610 | ||
611 | // TBranch *branch=dTree->GetBranch("TOF"); | |
612 | // if (!branch) { | |
0e46b9ae | 613 | // AliError(" can't get the branch with the TOF digits !"); |
d88fbf15 | 614 | // return 1; |
615 | // } | |
616 | ||
617 | // TClonesArray dummy("AliTOFdigit",10000), *digits=&dummy; | |
618 | // branch->SetAddress(&digits); | |
619 | ||
620 | // dTree->GetEvent(0); | |
621 | // Int_t nd=digits->GetEntriesFast(); | |
622 | // Info("LoadClusters","number of digits: %d",nd); | |
623 | ||
624 | // for (Int_t i=0; i<nd; i++) { | |
625 | // AliTOFdigit *d=(AliTOFdigit*)digits->UncheckedAt(i); | |
626 | // Int_t dig[5]; Float_t g[3]; | |
627 | // dig[0]=d->GetSector(); | |
628 | // dig[1]=d->GetPlate(); | |
629 | // dig[2]=d->GetStrip(); | |
630 | // dig[3]=d->GetPadz(); | |
631 | // dig[4]=d->GetPadx(); | |
632 | ||
633 | // fGeom->GetPos(dig,g); | |
634 | ||
635 | // Double_t h[5]; | |
636 | // h[0]=TMath::Sqrt(g[0]*g[0]+g[1]*g[1]); | |
637 | // h[1]=TMath::ATan2(g[1],g[0]); h[2]=g[2]; | |
638 | // h[3]=d->GetTdc(); h[4]=d->GetAdc(); | |
639 | ||
640 | // AliTOFcluster *cl=new AliTOFcluster(h,d->GetTracks(),dig,i); | |
641 | // InsertCluster(cl); | |
642 | // } | |
643 | ||
644 | // return 0; | |
645 | // } | |
646 | // //_________________________________________________________________________ | |
647 | // void AliTOFtrackerMI::UnloadClusters() { | |
648 | // //-------------------------------------------------------------------- | |
649 | // //This function unloads TOF clusters | |
650 | // //-------------------------------------------------------------------- | |
651 | // for (Int_t i=0; i<fN; i++) delete fClusters[i]; | |
652 | // fN=0; | |
653 | // } | |
654 | ||
655 | ||
656 | ||
657 | //_________________________________________________________________________ | |
658 | Int_t AliTOFtrackerMI::LoadClusters(TTree *cTree) { | |
659 | //-------------------------------------------------------------------- | |
660 | //This function loads the TOF clusters | |
661 | //-------------------------------------------------------------------- | |
662 | ||
663 | TBranch *branch=cTree->GetBranch("TOF"); | |
664 | if (!branch) { | |
665 | AliError("can't get the branch with the TOF clusters !"); | |
666 | return 1; | |
667 | } | |
668 | ||
669 | TClonesArray dummy("AliTOFcluster",10000), *clusters=&dummy; | |
670 | branch->SetAddress(&clusters); | |
671 | ||
672 | cTree->GetEvent(0); | |
673 | Int_t nc=clusters->GetEntriesFast(); | |
674 | AliInfo(Form("Number of clusters: %d",nc)); | |
675 | ||
676 | for (Int_t i=0; i<nc; i++) { | |
677 | AliTOFcluster *c=(AliTOFcluster*)clusters->UncheckedAt(i); | |
678 | /* | |
679 | for (Int_t jj=0; jj<5; jj++) dig[jj]=c->GetDetInd(jj); | |
680 | ||
681 | Double_t h[5]; | |
682 | h[0]=c->GetR(); | |
683 | h[1]=c->GetPhi(); | |
684 | h[2]=c->GetZ(); | |
685 | h[3]=c->GetTDC(); | |
686 | h[4]=c->GetADC(); | |
687 | ||
688 | Int_t indexDig[3]; | |
689 | for (Int_t jj=0; jj<3; jj++) indexDig[jj] = c->GetLabel(jj); | |
690 | ||
691 | AliTOFcluster *cl=new AliTOFcluster(h,c->GetTracks(),dig,i); | |
692 | */ | |
693 | ||
694 | // fClusters[i]=c; fN++; | |
695 | fClusters[i]=new AliTOFcluster(*c); fN++; | |
696 | ||
697 | //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))); | |
698 | //AliInfo(Form("%i %f",i, fClusters[i]->GetZ())); | |
699 | } | |
700 | ||
701 | //AliInfo(Form("Number of clusters: %d",fN)); | |
702 | ||
703 | return 0; | |
704 | } | |
705 | //_________________________________________________________________________ | |
706 | void AliTOFtrackerMI::UnloadClusters() { | |
707 | //-------------------------------------------------------------------- | |
708 | //This function unloads TOF clusters | |
709 | //-------------------------------------------------------------------- | |
710 | for (Int_t i=0; i<fN; i++) { | |
711 | delete fClusters[i]; | |
712 | fClusters[i] = 0x0; | |
713 | } | |
714 | fN=0; | |
715 | } | |
716 | ||
717 | ||
718 | ||
719 | ||
720 | //_________________________________________________________________________ | |
721 | Int_t AliTOFtrackerMI::InsertCluster(AliTOFcluster *c) { | |
722 | //-------------------------------------------------------------------- | |
723 | //This function adds a cluster to the array of clusters sorted in Z | |
724 | //-------------------------------------------------------------------- | |
725 | if (fN==kMaxCluster) { | |
0e46b9ae | 726 | AliError("Too many clusters !"); |
d88fbf15 | 727 | return 1; |
728 | } | |
729 | ||
730 | if (fN==0) {fClusters[fN++]=c; return 0;} | |
731 | Int_t i=FindClusterIndex(c->GetZ()); | |
732 | memmove(fClusters+i+1 ,fClusters+i,(fN-i)*sizeof(AliTOFcluster*)); | |
733 | fClusters[i]=c; fN++; | |
734 | ||
735 | return 0; | |
736 | } | |
737 | ||
738 | //_________________________________________________________________________ | |
739 | Int_t AliTOFtrackerMI::FindClusterIndex(Double_t z) const { | |
740 | //-------------------------------------------------------------------- | |
741 | // This function returns the index of the nearest cluster | |
742 | //-------------------------------------------------------------------- | |
743 | if (fN==0) return 0; | |
744 | if (z <= fClusters[0]->GetZ()) return 0; | |
745 | if (z > fClusters[fN-1]->GetZ()) return fN; | |
746 | Int_t b=0, e=fN-1, m=(b+e)/2; | |
747 | for (; b<e; m=(b+e)/2) { | |
748 | if (z > fClusters[m]->GetZ()) b=m+1; | |
749 | else e=m; | |
750 | } | |
751 | return m; | |
752 | } | |
753 | ||
754 | ||
755 | ||
756 | Float_t AliTOFtrackerMI::GetLinearDistances(AliTOFtrack * track, AliTOFcluster *cluster, Float_t distances[5]) | |
757 | { | |
758 | // | |
759 | // calclates distance between cluster and track | |
760 | // use linear aproximation | |
761 | // | |
762 | const Float_t kRaddeg = 180/3.14159265358979312; | |
763 | // | |
764 | // Float_t tiltangle = fGeom->GetAngles(cluster->fdetIndex[1],cluster->fdetIndex[2])/kRaddeg; //tiltangle | |
765 | Int_t cind[5]; | |
766 | cind[0]= cluster->GetDetInd(0); | |
767 | cind[1]= cluster->GetDetInd(1); | |
768 | cind[2]= cluster->GetDetInd(2); | |
769 | cind[3]= cluster->GetDetInd(3); | |
770 | cind[4]= cluster->GetDetInd(4); | |
771 | Float_t tiltangle = fGeom->GetAngles(cluster->GetDetInd(1),cluster->GetDetInd(2))/kRaddeg; //tiltangle | |
772 | ||
773 | Float_t cpos[3]; //cluster position | |
774 | Float_t cpos0[3]; //cluster position | |
775 | // fGeom->GetPos(cluster->fdetIndex,cpos); | |
776 | //fGeom->GetPos(cluster->fdetIndex,cpos0); | |
777 | // | |
778 | fGeom->GetPos(cind,cpos); | |
779 | fGeom->GetPos(cind,cpos0); | |
780 | ||
781 | Float_t phi = TMath::ATan2(cpos[1],cpos[0]); | |
782 | if(phi<0) phi=2.*TMath::Pi()+phi; | |
783 | // Get the local angle in the sector philoc | |
784 | Float_t phiangle = (Int_t (phi*kRaddeg/20.) + 0.5)*20./kRaddeg; | |
785 | // | |
786 | Double_t v0[3]; | |
787 | Double_t dir[3]; | |
6c94f330 | 788 | track->GetXYZ(v0); |
789 | track->GetPxPyPz(dir); | |
d88fbf15 | 790 | dir[0]/=track->GetP(); |
791 | dir[1]/=track->GetP(); | |
792 | dir[2]/=track->GetP(); | |
793 | // | |
794 | // | |
795 | //rotate 0 | |
796 | Float_t sinphi = TMath::Sin(phiangle); | |
797 | Float_t cosphi = TMath::Cos(phiangle); | |
798 | Float_t sinth = TMath::Sin(tiltangle); | |
799 | Float_t costh = TMath::Cos(tiltangle); | |
800 | // | |
801 | Float_t temp; | |
802 | temp = cpos[0]*cosphi+cpos[1]*sinphi; | |
803 | cpos[1] = -cpos[0]*sinphi+cpos[1]*cosphi; | |
804 | cpos[0] = temp; | |
805 | temp = v0[0]*cosphi+v0[1]*sinphi; | |
806 | v0[1] = -v0[0]*sinphi+v0[1]*cosphi; | |
807 | v0[0] = temp; | |
808 | // | |
809 | temp = cpos[0]*costh+cpos[2]*sinth; | |
810 | cpos[2] = -cpos[0]*sinth+cpos[2]*costh; | |
811 | cpos[0] = temp; | |
812 | temp = v0[0]*costh+v0[2]*sinth; | |
813 | v0[2] = -v0[0]*sinth+v0[2]*costh; | |
814 | v0[0] = temp; | |
815 | // | |
816 | // | |
817 | //rotate direction vector | |
818 | // | |
819 | temp = dir[0]*cosphi+dir[1]*sinphi; | |
820 | dir[1] = -dir[0]*sinphi+dir[1]*cosphi; | |
821 | dir[0] = temp; | |
822 | // | |
823 | temp = dir[0]*costh+dir[2]*sinth; | |
824 | dir[2] = -dir[0]*sinth+dir[2]*costh; | |
825 | dir[0] = temp; | |
826 | // | |
827 | Float_t v3[3]; | |
828 | Float_t k = (cpos[0]-v0[0])/dir[0]; | |
829 | v3[0] = v0[0]+k*dir[0]; | |
830 | v3[1] = v0[1]+k*dir[1]; | |
831 | v3[2] = v0[2]+k*dir[2]; | |
832 | // | |
833 | distances[0] = v3[0]-cpos[0]; | |
834 | distances[1] = v3[1]-cpos[1]; | |
835 | distances[2] = v3[2]-cpos[2]; | |
836 | distances[3] = TMath::Sqrt( distances[0]*distances[0]+distances[1]*distances[1]+distances[2]*distances[2]); //distance | |
837 | distances[4] = k; //length | |
838 | ||
839 | // | |
840 | // Debuging part of the matching | |
841 | // | |
842 | if (track->GetLabel()==cluster->GetLabel(0) ||track->GetLabel()==cluster->GetLabel(1) ){ | |
843 | TTreeSRedirector& cstream = *fDebugStreamer; | |
844 | Float_t tdc = cluster->GetTDC(); | |
845 | cstream<<"Tracks"<< | |
846 | "TOF.="<<track<< | |
847 | "Cx="<<cpos0[0]<< | |
848 | "Cy="<<cpos0[1]<< | |
849 | "Cz="<<cpos0[2]<< | |
850 | "Dist="<<k<< | |
851 | "Dist0="<<distances[0]<< | |
852 | "Dist1="<<distances[1]<< | |
853 | "Dist2="<<distances[2]<< | |
854 | "TDC="<<tdc<< | |
855 | "\n"; | |
856 | } | |
857 | return distances[3]; | |
858 | } | |
859 | ||
860 | ||
861 | ||
862 | void AliTOFtrackerMI::GetLikelihood(Float_t dy, Float_t dz, const Double_t *cov, AliTOFtrack * /*track*/, Float_t & py, Float_t &pz) | |
863 | { | |
864 | // | |
865 | // get likelihood - track covariance taken | |
866 | // 75 % of gauss with expected sigma | |
867 | // 25 % of gauss with extended sigma | |
868 | ||
869 | Double_t kMaxSigmaY = 0.6; // ~ 90% of TRD tracks | |
870 | Double_t kMaxSigmaZ = 1.2; // ~ 90% of TRD tracks | |
871 | Double_t kMeanSigmaY = 0.25; // mean TRD sigma | |
872 | Double_t kMeanSigmaZ = 0.5; // mean TRD sigma | |
873 | ||
874 | ||
875 | Float_t normwidth, normd, p0,p1; | |
876 | Float_t sigmay = TMath::Max(TMath::Sqrt(cov[0]+kMeanSigmaY*kMeanSigmaY),kMaxSigmaY); | |
877 | Float_t sigmaz = TMath::Max(TMath::Sqrt(cov[2]+kMeanSigmaZ*kMeanSigmaZ),kMaxSigmaZ); | |
878 | ||
879 | py=0; | |
880 | pz=0; | |
881 | // | |
882 | // py calculation - 75% admixture of original sigma - 25% tails | |
883 | // | |
884 | normwidth = fDy/sigmay; | |
885 | normd = dy/sigmay; | |
886 | p0 = 0.5*(1+TMath::Erf(normd-normwidth*0.5)); | |
887 | p1 = 0.5*(1+TMath::Erf(normd+normwidth*0.5)); | |
888 | py+= 0.75*(p1-p0); | |
889 | // | |
890 | normwidth = fDy/(3.*sigmay); | |
891 | normd = dy/(3.*sigmay); | |
892 | p0 = 0.5*(1+TMath::Erf(normd-normwidth*0.5)); | |
893 | p1 = 0.5*(1+TMath::Erf(normd+normwidth*0.5)); | |
894 | py+= 0.25*(p1-p0); | |
895 | // | |
896 | // pz calculation - 75% admixture of original sigma - 25% tails | |
897 | // | |
898 | normwidth = fDz/sigmaz; | |
899 | normd = dz/sigmaz; | |
900 | p0 = 0.5*(1+TMath::Erf(normd-normwidth*0.5)); | |
901 | p1 = 0.5*(1+TMath::Erf(normd+normwidth*0.5)); | |
902 | pz+= 0.75*(p1-p0); | |
903 | // | |
904 | normwidth = fDz/(3.*sigmaz); | |
905 | normd = dz/(3.*sigmaz); | |
906 | p0 = 0.5*(1+TMath::Erf(normd-normwidth*0.5)); | |
907 | p1 = 0.5*(1+TMath::Erf(normd+normwidth*0.5)); | |
908 | pz+= 0.25*(p1-p0); | |
909 | } |