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Updated temperature status bit (V. Pospisil)
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e43c066c 1/**************************************************************************
9a5326b1 2 * Copyright(c) 2007-2009, ALICE Experiment at CERN, All rights reserved. *
e43c066c 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 **************************************************************************/
9a5326b1 15/* $Id$ */
bf6adc12 16
e43c066c 17//-------------------------------------------------------------------------
18// Implementation of the ITS tracker class
00a7cc50 19// It reads AliITSRecPoint clusters and creates AliITStrackMI tracks
e43c066c 20// and fills with them the ESD
15dd636f 21// Origin: Marian Ivanov, CERN, Marian.Ivanov@cern.ch
afd25725 22// dE/dx analysis by: Boris Batyunya, JINR, Boris.Batiounia@cern.ch
23// Params moved to AliITSRecoParam by: Andrea Dainese, INFN
24// Material budget from TGeo by: Ludovic Gaudichet & Andrea Dainese, INFN
e43c066c 25//-------------------------------------------------------------------------
bf6adc12 26
27#include <TMatrixD.h>
e43c066c 28#include <TTree.h>
bf6adc12 29#include <TTreeStream.h>
afd25725 30#include <TDatabasePDG.h>
9a5326b1 31#include <TString.h>
e50912db 32#include <TRandom.h>
afd25725 33
bf6adc12 34
af885e0f 35#include "AliESDEvent.h"
aad72f45 36#include "AliESDtrack.h"
9a5326b1 37#include "AliESDVertex.h"
6c94f330 38#include "AliV0.h"
bf6adc12 39#include "AliHelix.h"
00a7cc50 40#include "AliITSRecPoint.h"
e341247d 41#include "AliITSgeomTGeo.h"
44347160 42#include "AliITSReconstructor.h"
df29e9a4 43#include "AliTrackPointArray.h"
44#include "AliAlignObj.h"
572f41f9 45#include "AliITSClusterParam.h"
ae00569a 46#include "AliCDBManager.h"
47#include "AliCDBEntry.h"
48#include "AliITSCalibrationSPD.h"
49#include "AliITSCalibrationSDD.h"
50#include "AliITSCalibrationSSD.h"
7167ae53 51#include "AliITSPlaneEff.h"
52#include "AliITSPlaneEffSPD.h"
53#include "AliITSPlaneEffSDD.h"
54#include "AliITSPlaneEffSSD.h"
ae00569a 55#include "AliITStrackerMI.h"
e43c066c 56
57ClassImp(AliITStrackerMI)
e43c066c 58
e50912db 59AliITStrackerMI::AliITSlayer AliITStrackerMI::fgLayers[AliITSgeomTGeo::kNLayers]; // ITS layers
44347160 60
8221b41b 61AliITStrackerMI::AliITStrackerMI():AliTracker(),
62fI(0),
63fBestTrack(),
64fTrackToFollow(),
65fTrackHypothesys(),
66fBestHypothesys(),
67fOriginal(),
68fCurrentEsdTrack(),
69fPass(0),
70fAfterV0(kFALSE),
71fLastLayerToTrackTo(0),
afd25725 72fCoefficients(0),
8221b41b 73fEsd(0),
e50912db 74fTrackingPhase("Default"),
6518a6c5 75fUseTGeo(3),
e50912db 76fNtracks(0),
77fxOverX0Pipe(-1.),
78fxTimesRhoPipe(-1.),
79fxOverX0PipeTrks(0),
80fxTimesRhoPipeTrks(0),
81fxOverX0ShieldTrks(0),
82fxTimesRhoShieldTrks(0),
83fxOverX0LayerTrks(0),
84fxTimesRhoLayerTrks(0),
4a66240a 85fDebugStreamer(0),
ae00569a 86fPlaneEff(0) {
8221b41b 87 //Default constructor
e50912db 88 Int_t i;
89 for(i=0;i<4;i++) fSPDdetzcentre[i]=0.;
90 for(i=0;i<2;i++) {fxOverX0Shield[i]=-1.;fxTimesRhoShield[i]=-1.;}
91 for(i=0;i<6;i++) {fxOverX0Layer[i]=-1.;fxTimesRhoLayer[i]=-1.;}
8221b41b 92}
44347160 93//------------------------------------------------------------------------
1f3e997f 94AliITStrackerMI::AliITStrackerMI(const Char_t *geom) : AliTracker(),
e50912db 95fI(AliITSgeomTGeo::GetNLayers()),
8221b41b 96fBestTrack(),
97fTrackToFollow(),
98fTrackHypothesys(),
99fBestHypothesys(),
100fOriginal(),
101fCurrentEsdTrack(),
102fPass(0),
103fAfterV0(kFALSE),
e50912db 104fLastLayerToTrackTo(AliITSRecoParam::GetLastLayerToTrackTo()),
afd25725 105fCoefficients(0),
8221b41b 106fEsd(0),
e50912db 107fTrackingPhase("Default"),
6518a6c5 108fUseTGeo(3),
e50912db 109fNtracks(0),
110fxOverX0Pipe(-1.),
111fxTimesRhoPipe(-1.),
112fxOverX0PipeTrks(0),
113fxTimesRhoPipeTrks(0),
114fxOverX0ShieldTrks(0),
115fxTimesRhoShieldTrks(0),
116fxOverX0LayerTrks(0),
117fxTimesRhoLayerTrks(0),
4a66240a 118fDebugStreamer(0),
ae00569a 119fPlaneEff(0) {
e43c066c 120 //--------------------------------------------------------------------
121 //This is the AliITStrackerMI constructor
122 //--------------------------------------------------------------------
e341247d 123 if (geom) {
124 AliWarning("\"geom\" is actually a dummy argument !");
125 }
126
afd25725 127 fCoefficients = 0;
628e7bb0 128 fAfterV0 = kFALSE;
e341247d 129
e50912db 130 for (Int_t i=1; i<AliITSgeomTGeo::GetNLayers()+1; i++) {
e341247d 131 Int_t nlad=AliITSgeomTGeo::GetNLadders(i);
132 Int_t ndet=AliITSgeomTGeo::GetNDetectors(i);
133
134 Double_t xyz[3], &x=xyz[0], &y=xyz[1], &z=xyz[2];
135 AliITSgeomTGeo::GetOrigTranslation(i,1,1,xyz);
e43c066c 136 Double_t poff=TMath::ATan2(y,x);
137 Double_t zoff=z;
e341247d 138 Double_t r=TMath::Sqrt(x*x + y*y);
e43c066c 139
e341247d 140 AliITSgeomTGeo::GetOrigTranslation(i,1,2,xyz);
e43c066c 141 r += TMath::Sqrt(x*x + y*y);
e341247d 142 AliITSgeomTGeo::GetOrigTranslation(i,2,1,xyz);
e43c066c 143 r += TMath::Sqrt(x*x + y*y);
e341247d 144 AliITSgeomTGeo::GetOrigTranslation(i,2,2,xyz);
e43c066c 145 r += TMath::Sqrt(x*x + y*y);
146 r*=0.25;
147
148 new (fgLayers+i-1) AliITSlayer(r,poff,zoff,nlad,ndet);
149
150 for (Int_t j=1; j<nlad+1; j++) {
151 for (Int_t k=1; k<ndet+1; k++) { //Fill this layer with detectors
e341247d 152 TGeoHMatrix m; AliITSgeomTGeo::GetOrigMatrix(i,j,k,m);
1f3e997f 153 const TGeoHMatrix *tm=AliITSgeomTGeo::GetTracking2LocalMatrix(i,j,k);
154 m.Multiply(tm);
155 Double_t txyz[3]={0.}, xyz[3]={0.};
156 m.LocalToMaster(txyz,xyz);
157 Double_t r=TMath::Sqrt(xyz[0]*xyz[0] + xyz[1]*xyz[1]);
158 Double_t phi=TMath::ATan2(xyz[1],xyz[0]);
e341247d 159
160 if (phi<0) phi+=TMath::TwoPi();
161 else if (phi>=TMath::TwoPi()) phi-=TMath::TwoPi();
162
e43c066c 163 AliITSdetector &det=fgLayers[i-1].GetDetector((j-1)*ndet + k-1);
164 new(&det) AliITSdetector(r,phi);
165 }
166 }
167
168 }
169
e50912db 170 fI=AliITSgeomTGeo::GetNLayers();
e43c066c 171
172 fPass=0;
173 fConstraint[0]=1; fConstraint[1]=0;
174
afd25725 175 Double_t xyzVtx[]={AliITSReconstructor::GetRecoParam()->GetXVdef(),
176 AliITSReconstructor::GetRecoParam()->GetYVdef(),
177 AliITSReconstructor::GetRecoParam()->GetZVdef()};
178 Double_t ersVtx[]={AliITSReconstructor::GetRecoParam()->GetSigmaXVdef(),
179 AliITSReconstructor::GetRecoParam()->GetSigmaYVdef(),
180 AliITSReconstructor::GetRecoParam()->GetSigmaZVdef()};
181 SetVertex(xyzVtx,ersVtx);
e43c066c 182
e50912db 183 for (Int_t i=0; i<AliITSgeomTGeo::GetNLayers(); i++) fLayersNotToSkip[i]=AliITSRecoParam::GetLayersNotToSkip(i);
184 fLastLayerToTrackTo=AliITSRecoParam::GetLastLayerToTrackTo();
628e7bb0 185 for (Int_t i=0;i<100000;i++){
186 fBestTrackIndex[i]=0;
187 }
afd25725 188
189 // store positions of centre of SPD modules (in z)
190 Double_t tr[3];
191 AliITSgeomTGeo::GetTranslation(1,1,1,tr);
192 fSPDdetzcentre[0] = tr[2];
193 AliITSgeomTGeo::GetTranslation(1,1,2,tr);
194 fSPDdetzcentre[1] = tr[2];
195 AliITSgeomTGeo::GetTranslation(1,1,3,tr);
196 fSPDdetzcentre[2] = tr[2];
197 AliITSgeomTGeo::GetTranslation(1,1,4,tr);
198 fSPDdetzcentre[3] = tr[2];
199
afd25725 200 fUseTGeo = AliITSReconstructor::GetRecoParam()->GetUseTGeoInTracker();
6518a6c5 201 if(AliITSReconstructor::GetRecoParam()->GetExtendedEtaAcceptance() && fUseTGeo!=1 && fUseTGeo!=3) {
202 AliWarning("fUseTGeo changed to 3 because fExtendedEtaAcceptance is kTRUE");
203 fUseTGeo = 3;
204 }
e50912db 205
206 for(Int_t i=0;i<2;i++) {fxOverX0Shield[i]=-1.;fxTimesRhoShield[i]=-1.;}
207 for(Int_t i=0;i<6;i++) {fxOverX0Layer[i]=-1.;fxTimesRhoLayer[i]=-1.;}
208
81e97e0d 209 fDebugStreamer = new TTreeSRedirector("ITSdebug.root");
210
7167ae53 211 // only for plane efficiency evaluation
212 if (AliITSReconstructor::GetRecoParam()->GetComputePlaneEff()) {
213 for(Int_t ilay=0;ilay<6;ilay++) {
214 if(AliITSReconstructor::GetRecoParam()->GetLayersToSkip(ilay)) {
215 if (ilay<2) fPlaneEff = new AliITSPlaneEffSPD();
216 else if (ilay<4) fPlaneEff = new AliITSPlaneEffSDD();
217 else fPlaneEff = new AliITSPlaneEffSSD();
218 break; // only one layer type to skip at once
219 }
220 }
221 if(!fPlaneEff->ReadFromCDB())
222 {AliWarning("AliITStrackerMI reading of AliITSPlaneEff from OCDB failed") ;}
5fbd4fd6 223 if(AliITSReconstructor::GetRecoParam()->GetHistoPlaneEff()) {
224 fPlaneEff->SetCreateHistos(kTRUE);
225 //fPlaneEff->ReadHistosFromFile();
226 }
7167ae53 227 }
628e7bb0 228}
44347160 229//------------------------------------------------------------------------
8221b41b 230AliITStrackerMI::AliITStrackerMI(const AliITStrackerMI &tracker):AliTracker(tracker),
231fI(tracker.fI),
232fBestTrack(tracker.fBestTrack),
233fTrackToFollow(tracker.fTrackToFollow),
234fTrackHypothesys(tracker.fTrackHypothesys),
235fBestHypothesys(tracker.fBestHypothesys),
236fOriginal(tracker.fOriginal),
237fCurrentEsdTrack(tracker.fCurrentEsdTrack),
238fPass(tracker.fPass),
239fAfterV0(tracker.fAfterV0),
240fLastLayerToTrackTo(tracker.fLastLayerToTrackTo),
afd25725 241fCoefficients(tracker.fCoefficients),
8221b41b 242fEsd(tracker.fEsd),
e50912db 243fTrackingPhase(tracker.fTrackingPhase),
afd25725 244fUseTGeo(tracker.fUseTGeo),
e50912db 245fNtracks(tracker.fNtracks),
246fxOverX0Pipe(tracker.fxOverX0Pipe),
247fxTimesRhoPipe(tracker.fxTimesRhoPipe),
248fxOverX0PipeTrks(0),
249fxTimesRhoPipeTrks(0),
250fxOverX0ShieldTrks(0),
251fxTimesRhoShieldTrks(0),
252fxOverX0LayerTrks(0),
253fxTimesRhoLayerTrks(0),
4a66240a 254fDebugStreamer(tracker.fDebugStreamer),
ae00569a 255fPlaneEff(tracker.fPlaneEff) {
8221b41b 256 //Copy constructor
e50912db 257 Int_t i;
258 for(i=0;i<4;i++) {
259 fSPDdetzcentre[i]=tracker.fSPDdetzcentre[i];
260 }
261 for(i=0;i<6;i++) {
262 fxOverX0Layer[i]=tracker.fxOverX0Layer[i];
263 fxTimesRhoLayer[i]=tracker.fxTimesRhoLayer[i];
264 }
265 for(i=0;i<2;i++) {
266 fxOverX0Shield[i]=tracker.fxOverX0Shield[i];
267 fxTimesRhoShield[i]=tracker.fxTimesRhoShield[i];
268 }
8221b41b 269}
44347160 270//------------------------------------------------------------------------
8221b41b 271AliITStrackerMI & AliITStrackerMI::operator=(const AliITStrackerMI &tracker){
272 //Assignment operator
273 this->~AliITStrackerMI();
274 new(this) AliITStrackerMI(tracker);
275 return *this;
276}
44347160 277//------------------------------------------------------------------------
628e7bb0 278AliITStrackerMI::~AliITStrackerMI()
279{
280 //
281 //destructor
282 //
e50912db 283 if (fCoefficients) delete [] fCoefficients;
284 DeleteTrksMaterialLUT();
81e97e0d 285 if (fDebugStreamer) {
286 //fDebugStreamer->Close();
287 delete fDebugStreamer;
288 }
e43c066c 289}
44347160 290//------------------------------------------------------------------------
e43c066c 291void AliITStrackerMI::SetLayersNotToSkip(Int_t *l) {
292 //--------------------------------------------------------------------
293 //This function set masks of the layers which must be not skipped
294 //--------------------------------------------------------------------
e50912db 295 for (Int_t i=0; i<AliITSgeomTGeo::GetNLayers(); i++) fLayersNotToSkip[i]=l[i];
e43c066c 296}
44347160 297//------------------------------------------------------------------------
e43c066c 298Int_t AliITStrackerMI::LoadClusters(TTree *cTree) {
299 //--------------------------------------------------------------------
300 //This function loads ITS clusters
301 //--------------------------------------------------------------------
00a7cc50 302 TBranch *branch=cTree->GetBranch("ITSRecPoints");
e43c066c 303 if (!branch) {
304 Error("LoadClusters"," can't get the branch !\n");
305 return 1;
306 }
307
00a7cc50 308 TClonesArray dummy("AliITSRecPoint",10000), *clusters=&dummy;
e43c066c 309 branch->SetAddress(&clusters);
310
311 Int_t j=0;
312 Int_t detector=0;
e50912db 313 for (Int_t i=0; i<AliITSgeomTGeo::GetNLayers(); i++) {
e43c066c 314 Int_t ndet=fgLayers[i].GetNdetectors();
315 Int_t jmax = j + fgLayers[i].GetNladders()*ndet;
316 for (; j<jmax; j++) {
317 if (!cTree->GetEvent(j)) continue;
318 Int_t ncl=clusters->GetEntriesFast();
319 SignDeltas(clusters,GetZ());
1f3e997f 320
e43c066c 321 while (ncl--) {
00a7cc50 322 AliITSRecPoint *c=(AliITSRecPoint*)clusters->UncheckedAt(ncl);
75fb37cc 323 detector=c->GetDetectorIndex();
a504d56f 324
75fb37cc 325 if (!c->Misalign()) AliWarning("Can't misalign this cluster !");
a504d56f 326
00a7cc50 327 fgLayers[i].InsertCluster(new AliITSRecPoint(*c));
e43c066c 328 }
329 clusters->Delete();
afd25725 330 // add dead zone "virtual" cluster in SPD, if there is a cluster within
331 // zwindow cm from the dead zone
332 if (i<2 && AliITSReconstructor::GetRecoParam()->GetAddVirtualClustersInDeadZone()) {
e50912db 333 for (Float_t xdead = 0; xdead < AliITSRecoParam::GetSPDdetxlength(); xdead += (i+1.)*AliITSReconstructor::GetRecoParam()->GetXPassDeadZoneHits()) {
afd25725 334 Int_t lab[4] = {0,0,0,detector};
335 Int_t info[3] = {0,0,i};
6518a6c5 336 Float_t q = 0.; // this identifies virtual clusters
afd25725 337 Float_t hit[5] = {xdead,
338 0.,
339 AliITSReconstructor::GetRecoParam()->GetSigmaXDeadZoneHit2(),
340 AliITSReconstructor::GetRecoParam()->GetSigmaZDeadZoneHit2(),
341 q};
342 Bool_t local = kTRUE;
343 Double_t zwindow = AliITSReconstructor::GetRecoParam()->GetZWindowDeadZone();
e50912db 344 hit[1] = fSPDdetzcentre[0]+0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 345 if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow)
346 fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local));
e50912db 347 hit[1] = fSPDdetzcentre[1]-0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 348 if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow)
349 fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local));
e50912db 350 hit[1] = fSPDdetzcentre[1]+0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 351 if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow)
352 fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local));
e50912db 353 hit[1] = fSPDdetzcentre[2]-0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 354 if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow)
355 fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local));
e50912db 356 hit[1] = fSPDdetzcentre[2]+0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 357 if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow)
358 fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local));
e50912db 359 hit[1] = fSPDdetzcentre[3]-0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 360 if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow)
361 fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local));
e43c066c 362 }
6518a6c5 363 } // "virtual" clusters in SPD
e43c066c 364
365 }
366 //
367 fgLayers[i].ResetRoad(); //road defined by the cluster density
368 fgLayers[i].SortClusters();
369 }
370
371 return 0;
372}
44347160 373//------------------------------------------------------------------------
e43c066c 374void AliITStrackerMI::UnloadClusters() {
375 //--------------------------------------------------------------------
376 //This function unloads ITS clusters
377 //--------------------------------------------------------------------
e50912db 378 for (Int_t i=0; i<AliITSgeomTGeo::GetNLayers(); i++) fgLayers[i].ResetClusters();
e43c066c 379}
44347160 380//------------------------------------------------------------------------
afd25725 381static Int_t CorrectForTPCtoITSDeadZoneMaterial(AliITStrackMI *t) {
e43c066c 382 //--------------------------------------------------------------------
383 // Correction for the material between the TPC and the ITS
e43c066c 384 //--------------------------------------------------------------------
e50912db 385 if (t->GetX() > AliITSRecoParam::Getriw()) { // inward direction
386 if (!t->PropagateToTGeo(AliITSRecoParam::Getriw(),1)) return 0;// TPC inner wall
387 if (!t->PropagateToTGeo(AliITSRecoParam::Getrcd(),1)) return 0;// TPC central drum
388 if (!t->PropagateToTGeo(AliITSRecoParam::Getrs(),1)) return 0;// ITS screen
389 } else if (t->GetX() < AliITSRecoParam::Getrs()) { // outward direction
390 if (!t->PropagateToTGeo(AliITSRecoParam::Getrs(),1)) return 0;// ITS screen
391 if (!t->PropagateToTGeo(AliITSRecoParam::Getrcd(),1)) return 0;// TPC central drum
392 if (!t->PropagateToTGeo(AliITSRecoParam::Getriw()+0.001,1)) return 0;// TPC inner wall
e43c066c 393 } else {
afd25725 394 Error("CorrectForTPCtoITSDeadZoneMaterial","Track is already in the dead zone !");
e50912db 395 return 0;
e43c066c 396 }
397
e50912db 398 return 1;
e43c066c 399}
44347160 400//------------------------------------------------------------------------
af885e0f 401Int_t AliITStrackerMI::Clusters2Tracks(AliESDEvent *event) {
e43c066c 402 //--------------------------------------------------------------------
403 // This functions reconstructs ITS tracks
404 // The clusters must be already loaded !
405 //--------------------------------------------------------------------
e50912db 406 fTrackingPhase="Clusters2Tracks";
407
e43c066c 408 TObjArray itsTracks(15000);
628e7bb0 409 fOriginal.Clear();
81e97e0d 410 fEsd = event; // store pointer to the esd
afd25725 411
9a5326b1 412 // temporary (for cosmics)
413 if(event->GetVertex()) {
414 TString title = event->GetVertex()->GetTitle();
415 if(title.Contains("cosmics")) {
416 Double_t xyz[3]={GetX(),GetY(),GetZ()};
417 Double_t exyz[3]={0.1,0.1,0.1};
418 SetVertex(xyz,exyz);
419 }
420 }
421 // temporary
afd25725 422
e43c066c 423 {/* Read ESD tracks */
afd25725 424 Double_t pimass = TDatabasePDG::Instance()->GetParticle(211)->Mass();
e43c066c 425 Int_t nentr=event->GetNumberOfTracks();
426 Info("Clusters2Tracks", "Number of ESD tracks: %d\n", nentr);
427 while (nentr--) {
428 AliESDtrack *esd=event->GetTrack(nentr);
429
430 if ((esd->GetStatus()&AliESDtrack::kTPCin)==0) continue;
431 if (esd->GetStatus()&AliESDtrack::kTPCout) continue;
432 if (esd->GetStatus()&AliESDtrack::kITSin) continue;
51ad6848 433 if (esd->GetKinkIndex(0)>0) continue; //kink daughter
15dd636f 434 AliITStrackMI *t=0;
e43c066c 435 try {
15dd636f 436 t=new AliITStrackMI(*esd);
e43c066c 437 } catch (const Char_t *msg) {
628e7bb0 438 //Warning("Clusters2Tracks",msg);
e43c066c 439 delete t;
440 continue;
441 }
b9671574 442 t->GetDZ(GetX(),GetY(),GetZ(),t->GetDP()); //I.B.
443 Double_t vdist = TMath::Sqrt(t->GetD(0)*t->GetD(0)+t->GetD(1)*t->GetD(1));
6518a6c5 444
445
afd25725 446 // look at the ESD mass hypothesys !
447 if (t->GetMass()<0.9*pimass) t->SetMass(pimass);
e43c066c 448 // write expected q
b9671574 449 t->SetExpQ(TMath::Max(0.8*t->GetESDtrack()->GetTPCsignal(),30.));
e43c066c 450
afd25725 451 if (esd->GetV0Index(0)>0 && t->GetD(0)<AliITSReconstructor::GetRecoParam()->GetMaxDforV0dghtrForProlongation()){
81e97e0d 452 //track - can be V0 according to TPC
afd25725 453 } else {
454 if (TMath::Abs(t->GetD(0))>AliITSReconstructor::GetRecoParam()->GetMaxDForProlongation()) {
81e97e0d 455 delete t;
456 continue;
e50912db 457 }
afd25725 458 if (TMath::Abs(vdist)>AliITSReconstructor::GetRecoParam()->GetMaxDZForProlongation()) {
81e97e0d 459 delete t;
460 continue;
461 }
6c23ffed 462 if (t->Pt()<AliITSReconstructor::GetRecoParam()->GetMinPtForProlongation()) {
81e97e0d 463 delete t;
464 continue;
465 }
e50912db 466 if (!CorrectForTPCtoITSDeadZoneMaterial(t)) {
81e97e0d 467 delete t;
468 continue;
469 }
e43c066c 470 }
b9671574 471 t->SetReconstructed(kFALSE);
e43c066c 472 itsTracks.AddLast(t);
628e7bb0 473 fOriginal.AddLast(t);
e43c066c 474 }
475 } /* End Read ESD tracks */
476
477 itsTracks.Sort();
628e7bb0 478 fOriginal.Sort();
e43c066c 479 Int_t nentr=itsTracks.GetEntriesFast();
480 fTrackHypothesys.Expand(nentr);
81e97e0d 481 fBestHypothesys.Expand(nentr);
afd25725 482 MakeCoefficients(nentr);
513ab112 483 if(fUseTGeo==3 || fUseTGeo==4) MakeTrksMaterialLUT(event->GetNumberOfTracks());
e43c066c 484 Int_t ntrk=0;
afd25725 485 // THE TWO TRACKING PASSES
e43c066c 486 for (fPass=0; fPass<2; fPass++) {
487 Int_t &constraint=fConstraint[fPass]; if (constraint<0) continue;
e50912db 488 for (fCurrentEsdTrack=0; fCurrentEsdTrack<nentr; fCurrentEsdTrack++) {
2755f080 489 //cerr<<fPass<<" "<<fCurrentEsdTrack<<'\n';
e50912db 490 AliITStrackMI *t=(AliITStrackMI*)itsTracks.UncheckedAt(fCurrentEsdTrack);
e43c066c 491 if (t==0) continue; //this track has been already tracked
b9671574 492 if (t->GetReconstructed()&&(t->GetNUsed()<1.5)) continue; //this track was already "succesfully" reconstructed
791f9a2a 493 Float_t dz[2]; t->GetDZ(GetX(),GetY(),GetZ(),dz); //I.B.
afd25725 494 if (fConstraint[fPass]) {
495 if (TMath::Abs(dz[0])>AliITSReconstructor::GetRecoParam()->GetMaxDZToUseConstraint() ||
496 TMath::Abs(dz[1])>AliITSReconstructor::GetRecoParam()->GetMaxDZToUseConstraint()) continue;
497 }
e43c066c 498
499 Int_t tpcLabel=t->GetLabel(); //save the TPC track label
500 fI = 6;
501 ResetTrackToFollow(*t);
502 ResetBestTrack();
6518a6c5 503
e50912db 504 FollowProlongationTree(t,fCurrentEsdTrack,fConstraint[fPass]);
e43c066c 505
506 SortTrackHypothesys(fCurrentEsdTrack,20,0); //MI change
507 //
ae00569a 508 AliITStrackMI *besttrack = GetBestHypothesys(fCurrentEsdTrack,t,15);
e43c066c 509 if (!besttrack) continue;
510 besttrack->SetLabel(tpcLabel);
511 // besttrack->CookdEdx();
512 CookdEdx(besttrack);
b9671574 513 besttrack->SetFakeRatio(1.);
e43c066c 514 CookLabel(besttrack,0.); //For comparison only
e43c066c 515 UpdateESDtrack(besttrack,AliESDtrack::kITSin);
628e7bb0 516
628e7bb0 517 if (fConstraint[fPass]&&(!besttrack->IsGoldPrimary())) continue; //to be tracked also without vertex constrain
518
b9671574 519 t->SetReconstructed(kTRUE);
e43c066c 520 ntrk++;
521 }
522 GetBestHypothesysMIP(itsTracks);
afd25725 523 } // end loop on the two tracking passes
e43c066c 524
525 //GetBestHypothesysMIP(itsTracks);
afd25725 526 if(event->GetNumberOfV0s()>0) UpdateTPCV0(event);
527 if(AliITSReconstructor::GetRecoParam()->GetFindV0s()) FindV02(event);
628e7bb0 528 fAfterV0 = kTRUE;
529 //GetBestHypothesysMIP(itsTracks);
530 //
e43c066c 531 itsTracks.Delete();
532 //
533 Int_t entries = fTrackHypothesys.GetEntriesFast();
e50912db 534 for (Int_t ientry=0; ientry<entries; ientry++) {
e43c066c 535 TObjArray * array =(TObjArray*)fTrackHypothesys.UncheckedAt(ientry);
536 if (array) array->Delete();
537 delete fTrackHypothesys.RemoveAt(ientry);
538 }
539
540 fTrackHypothesys.Delete();
81e97e0d 541 fBestHypothesys.Delete();
628e7bb0 542 fOriginal.Clear();
afd25725 543 delete [] fCoefficients;
544 fCoefficients=0;
e50912db 545 DeleteTrksMaterialLUT();
546
e43c066c 547 Info("Clusters2Tracks","Number of prolonged tracks: %d\n",ntrk);
e50912db 548
549 fTrackingPhase="Default";
628e7bb0 550
e43c066c 551 return 0;
552}
44347160 553//------------------------------------------------------------------------
af885e0f 554Int_t AliITStrackerMI::PropagateBack(AliESDEvent *event) {
e43c066c 555 //--------------------------------------------------------------------
556 // This functions propagates reconstructed ITS tracks back
557 // The clusters must be loaded !
558 //--------------------------------------------------------------------
e50912db 559 fTrackingPhase="PropagateBack";
e43c066c 560 Int_t nentr=event->GetNumberOfTracks();
561 Info("PropagateBack", "Number of ESD tracks: %d\n", nentr);
562
563 Int_t ntrk=0;
564 for (Int_t i=0; i<nentr; i++) {
565 AliESDtrack *esd=event->GetTrack(i);
566
567 if ((esd->GetStatus()&AliESDtrack::kITSin)==0) continue;
568 if (esd->GetStatus()&AliESDtrack::kITSout) continue;
569
15dd636f 570 AliITStrackMI *t=0;
e43c066c 571 try {
15dd636f 572 t=new AliITStrackMI(*esd);
e43c066c 573 } catch (const Char_t *msg) {
628e7bb0 574 //Warning("PropagateBack",msg);
e43c066c 575 delete t;
576 continue;
577 }
b9671574 578 t->SetExpQ(TMath::Max(0.8*t->GetESDtrack()->GetTPCsignal(),30.));
e43c066c 579
580 ResetTrackToFollow(*t);
581
9a5326b1 582 // propagate to vertex [SR, GSI 17.02.2003]
e43c066c 583 // Start Time measurement [SR, GSI 17.02.2003], corrected by I.Belikov
e50912db 584 if (CorrectForPipeMaterial(&fTrackToFollow,"inward")) {
585 if (fTrackToFollow.PropagateToVertex(event->GetVertex()))
586 fTrackToFollow.StartTimeIntegral();
587 // from vertex to outside pipe
588 CorrectForPipeMaterial(&fTrackToFollow,"outward");
e43c066c 589 }
590
6c94f330 591 fTrackToFollow.ResetCovariance(10.); fTrackToFollow.ResetClusters();
e50912db 592 if (RefitAt(AliITSRecoParam::GetrInsideITSscreen(),&fTrackToFollow,t)) {
593 if (!CorrectForTPCtoITSDeadZoneMaterial(&fTrackToFollow)) {
e43c066c 594 delete t;
595 continue;
596 }
597 fTrackToFollow.SetLabel(t->GetLabel());
598 //fTrackToFollow.CookdEdx();
599 CookLabel(&fTrackToFollow,0.); //For comparison only
600 fTrackToFollow.UpdateESDtrack(AliESDtrack::kITSout);
601 //UseClusters(&fTrackToFollow);
602 ntrk++;
603 }
604 delete t;
605 }
606
607 Info("PropagateBack","Number of back propagated ITS tracks: %d\n",ntrk);
608
e50912db 609 fTrackingPhase="Default";
610
e43c066c 611 return 0;
612}
44347160 613//------------------------------------------------------------------------
af885e0f 614Int_t AliITStrackerMI::RefitInward(AliESDEvent *event) {
e43c066c 615 //--------------------------------------------------------------------
616 // This functions refits ITS tracks using the
617 // "inward propagated" TPC tracks
618 // The clusters must be loaded !
619 //--------------------------------------------------------------------
e50912db 620 fTrackingPhase="RefitInward";
afd25725 621 if(AliITSReconstructor::GetRecoParam()->GetFindV0s()) RefitV02(event);
e43c066c 622 Int_t nentr=event->GetNumberOfTracks();
623 Info("RefitInward", "Number of ESD tracks: %d\n", nentr);
624
625 Int_t ntrk=0;
626 for (Int_t i=0; i<nentr; i++) {
627 AliESDtrack *esd=event->GetTrack(i);
628
629 if ((esd->GetStatus()&AliESDtrack::kITSout) == 0) continue;
630 if (esd->GetStatus()&AliESDtrack::kITSrefit) continue;
631 if (esd->GetStatus()&AliESDtrack::kTPCout)
632 if ((esd->GetStatus()&AliESDtrack::kTPCrefit)==0) continue;
633
15dd636f 634 AliITStrackMI *t=0;
e43c066c 635 try {
15dd636f 636 t=new AliITStrackMI(*esd);
e43c066c 637 } catch (const Char_t *msg) {
628e7bb0 638 //Warning("RefitInward",msg);
e43c066c 639 delete t;
640 continue;
641 }
b9671574 642 t->SetExpQ(TMath::Max(0.8*t->GetESDtrack()->GetTPCsignal(),30.));
e50912db 643 if (!CorrectForTPCtoITSDeadZoneMaterial(t)) {
e43c066c 644 delete t;
645 continue;
646 }
647
648 ResetTrackToFollow(*t);
649 fTrackToFollow.ResetClusters();
650
651 if ((esd->GetStatus()&AliESDtrack::kTPCin)==0)
6c94f330 652 fTrackToFollow.ResetCovariance(10.);
e43c066c 653
654 //Refitting...
7167ae53 655 Bool_t pe=AliITSReconstructor::GetRecoParam()->GetComputePlaneEff();
656 if (RefitAt(AliITSRecoParam::GetrInsideSPD1(),&fTrackToFollow,t,kTRUE,pe)) {
e43c066c 657 fTrackToFollow.SetLabel(t->GetLabel());
658 // fTrackToFollow.CookdEdx();
659 CookdEdx(&fTrackToFollow);
660
661 CookLabel(&fTrackToFollow,0.0); //For comparison only
662
9a5326b1 663 //The beam pipe
e50912db 664 if (CorrectForPipeMaterial(&fTrackToFollow,"inward")) {
ae00569a 665 fTrackToFollow.UpdateESDtrack(AliESDtrack::kITSrefit);
9a5326b1 666 AliESDtrack *esdTrack =fTrackToFollow.GetESDtrack();
ae00569a 667 //printf(" %d\n",esdTrack->GetITSModuleIndex(0));
668 //esdTrack->UpdateTrackParams(&fTrackToFollow,AliESDtrack::kITSrefit); //original line
9a5326b1 669 Float_t r[3]={0.,0.,0.};
670 Double_t maxD=3.;
671 esdTrack->RelateToVertex(event->GetVertex(),GetBz(r),maxD);
672 ntrk++;
e43c066c 673 }
674 }
675 delete t;
676 }
677
678 Info("RefitInward","Number of refitted tracks: %d\n",ntrk);
679
e50912db 680 fTrackingPhase="Default";
681
e43c066c 682 return 0;
683}
44347160 684//------------------------------------------------------------------------
e43c066c 685AliCluster *AliITStrackerMI::GetCluster(Int_t index) const {
686 //--------------------------------------------------------------------
687 // Return pointer to a given cluster
688 //--------------------------------------------------------------------
689 Int_t l=(index & 0xf0000000) >> 28;
690 Int_t c=(index & 0x0fffffff) >> 00;
691 return fgLayers[l].GetCluster(c);
692}
9a5326b1 693//------------------------------------------------------------------------
df29e9a4 694Bool_t AliITStrackerMI::GetTrackPoint(Int_t index, AliTrackPoint& p) const {
9a5326b1 695 //--------------------------------------------------------------------
df29e9a4 696 // Get track space point with index i
9a5326b1 697 //--------------------------------------------------------------------
60066577 698
78b03929 699 Int_t l=(index & 0xf0000000) >> 28;
700 Int_t c=(index & 0x0fffffff) >> 00;
00a7cc50 701 AliITSRecPoint *cl = fgLayers[l].GetCluster(c);
df29e9a4 702 Int_t idet = cl->GetDetectorIndex();
4e65ff9e 703
60066577 704 Float_t xyz[3];
705 Float_t cov[6];
706 cl->GetGlobalXYZ(xyz);
707 cl->GetGlobalCov(cov);
708 p.SetXYZ(xyz, cov);
4e65ff9e 709
ae079791 710 AliGeomManager::ELayerID iLayer = AliGeomManager::kInvalidLayer;
df29e9a4 711 switch (l) {
712 case 0:
ae079791 713 iLayer = AliGeomManager::kSPD1;
df29e9a4 714 break;
715 case 1:
ae079791 716 iLayer = AliGeomManager::kSPD2;
df29e9a4 717 break;
718 case 2:
ae079791 719 iLayer = AliGeomManager::kSDD1;
df29e9a4 720 break;
721 case 3:
ae079791 722 iLayer = AliGeomManager::kSDD2;
9a5326b1 723 break;
724 case 4:
725 iLayer = AliGeomManager::kSSD1;
726 break;
727 case 5:
728 iLayer = AliGeomManager::kSSD2;
729 break;
730 default:
731 AliWarning(Form("Wrong layer index in ITS (%d) !",l));
732 break;
733 };
734 UShort_t volid = AliGeomManager::LayerToVolUID(iLayer,idet);
735 p.SetVolumeID((UShort_t)volid);
736 return kTRUE;
737}
738//------------------------------------------------------------------------
739Bool_t AliITStrackerMI::GetTrackPointTrackingError(Int_t index,
740 AliTrackPoint& p, const AliESDtrack *t) {
741 //--------------------------------------------------------------------
742 // Get track space point with index i
743 // (assign error estimated during the tracking)
744 //--------------------------------------------------------------------
745
746 Int_t l=(index & 0xf0000000) >> 28;
747 Int_t c=(index & 0x0fffffff) >> 00;
748 const AliITSRecPoint *cl = fgLayers[l].GetCluster(c);
749 Int_t idet = cl->GetDetectorIndex();
750 const AliITSdetector &det=fgLayers[l].GetDetector(idet);
751
752 // tgphi and tglambda of the track in tracking frame with alpha=det.GetPhi
753 Float_t detxy[2];
754 detxy[0] = det.GetR()*TMath::Cos(det.GetPhi());
755 detxy[1] = det.GetR()*TMath::Sin(det.GetPhi());
756 Double_t alpha = t->GetAlpha();
757 Double_t xdetintrackframe = detxy[0]*TMath::Cos(alpha)+detxy[1]*TMath::Sin(alpha);
758 Float_t phi = TMath::ASin(t->GetSnpAt(xdetintrackframe,AliTracker::GetBz()));
759 phi += alpha-det.GetPhi();
760 Float_t tgphi = TMath::Tan(phi);
761
762 Float_t tgl = t->GetTgl(); // tgl about const along track
763 Float_t expQ = TMath::Max(0.8*t->GetTPCsignal(),30.);
764
765 Float_t errlocalx,errlocalz;
e50912db 766 AliITSClusterParam::GetError(l,cl,tgl,tgphi,expQ,errlocalx,errlocalz);
9a5326b1 767
768 Float_t xyz[3];
769 Float_t cov[6];
770 cl->GetGlobalXYZ(xyz);
771 // cl->GetGlobalCov(cov);
772 Float_t pos[3] = {0.,0.,0.};
773 AliCluster tmpcl((UShort_t)cl->GetVolumeId(),pos[0],pos[1],pos[2],errlocalx*errlocalx,errlocalz*errlocalz,0);
774 tmpcl.GetGlobalCov(cov);
775
776 p.SetXYZ(xyz, cov);
777
778 AliGeomManager::ELayerID iLayer = AliGeomManager::kInvalidLayer;
779 switch (l) {
780 case 0:
781 iLayer = AliGeomManager::kSPD1;
782 break;
783 case 1:
784 iLayer = AliGeomManager::kSPD2;
785 break;
786 case 2:
787 iLayer = AliGeomManager::kSDD1;
788 break;
789 case 3:
790 iLayer = AliGeomManager::kSDD2;
df29e9a4 791 break;
792 case 4:
ae079791 793 iLayer = AliGeomManager::kSSD1;
df29e9a4 794 break;
795 case 5:
ae079791 796 iLayer = AliGeomManager::kSSD2;
df29e9a4 797 break;
798 default:
799 AliWarning(Form("Wrong layer index in ITS (%d) !",l));
800 break;
801 };
ae079791 802 UShort_t volid = AliGeomManager::LayerToVolUID(iLayer,idet);
df29e9a4 803 p.SetVolumeID((UShort_t)volid);
804 return kTRUE;
805}
44347160 806//------------------------------------------------------------------------
81e97e0d 807void AliITStrackerMI::FollowProlongationTree(AliITStrackMI * otrack, Int_t esdindex, Bool_t constrain)
e43c066c 808{
809 //--------------------------------------------------------------------
810 // Follow prolongation tree
811 //--------------------------------------------------------------------
81e97e0d 812 //
afd25725 813 Double_t xyzVtx[]={GetX(),GetY(),GetZ()};
814 Double_t ersVtx[]={GetSigmaX(),GetSigmaY(),GetSigmaZ()};
815
2755f080 816
b9671574 817 AliESDtrack * esd = otrack->GetESDtrack();
afd25725 818 if (esd->GetV0Index(0)>0) {
81e97e0d 819 // TEMPORARY SOLLUTION: map V0 indexes to point to proper track
afd25725 820 // mapping of ESD track is different as ITS track in Containers
81e97e0d 821 // Need something more stable
44347160 822 // Indexes are set back again to the ESD track indexes in UpdateTPCV0
81e97e0d 823 for (Int_t i=0;i<3;i++){
824 Int_t index = esd->GetV0Index(i);
825 if (index==0) break;
d6a49f20 826 AliESDv0 * vertex = fEsd->GetV0(index);
81e97e0d 827 if (vertex->GetStatus()<0) continue; // rejected V0
828 //
afd25725 829 if (esd->GetSign()>0) {
830 vertex->SetIndex(0,esdindex);
831 } else {
832 vertex->SetIndex(1,esdindex);
833 }
81e97e0d 834 }
835 }
836 TObjArray *bestarray = (TObjArray*)fBestHypothesys.At(esdindex);
837 if (!bestarray){
838 bestarray = new TObjArray(5);
839 fBestHypothesys.AddAt(bestarray,esdindex);
840 }
e43c066c 841
81e97e0d 842 //
e43c066c 843 //setup tree of the prolongations
844 //
15dd636f 845 static AliITStrackMI tracks[7][100];
846 AliITStrackMI *currenttrack;
847 static AliITStrackMI currenttrack1;
848 static AliITStrackMI currenttrack2;
849 static AliITStrackMI backuptrack;
e43c066c 850 Int_t ntracks[7];
851 Int_t nindexes[7][100];
852 Float_t normalizedchi2[100];
853 for (Int_t ilayer=0;ilayer<6;ilayer++) ntracks[ilayer]=0;
b9671574 854 otrack->SetNSkipped(0);
15dd636f 855 new (&(tracks[6][0])) AliITStrackMI(*otrack);
e43c066c 856 ntracks[6]=1;
81e97e0d 857 for (Int_t i=0;i<7;i++) nindexes[i][0]=0;
ae00569a 858 Int_t modstatus = 1; // found
859 Float_t xloc,zloc;
e43c066c 860 //
861 //
862 // follow prolongations
e50912db 863 for (Int_t ilayer=5; ilayer>=0; ilayer--) {
2755f080 864 fI = ilayer;
e43c066c 865 //
2755f080 866 AliITSlayer &layer=fgLayers[ilayer];
867 Double_t r = layer.GetR();
e43c066c 868 ntracks[ilayer]=0;
869 //
870 //
2755f080 871 Int_t nskipped=0;
e43c066c 872 Float_t nused =0;
e50912db 873 for (Int_t itrack =0; itrack<ntracks[ilayer+1]; itrack++) {
e43c066c 874 //set current track
875 if (ntracks[ilayer]>=100) break;
b9671574 876 if (tracks[ilayer+1][nindexes[ilayer+1][itrack]].GetNSkipped()>0) nskipped++;
877 if (tracks[ilayer+1][nindexes[ilayer+1][itrack]].GetNUsed()>2.) nused++;
e43c066c 878 if (ntracks[ilayer]>15+ilayer){
b9671574 879 if (itrack>1&&tracks[ilayer+1][nindexes[ilayer+1][itrack]].GetNSkipped()>0 && nskipped>4+ilayer) continue;
880 if (itrack>1&&tracks[ilayer+1][nindexes[ilayer+1][itrack]].GetNUsed()>2. && nused>3) continue;
e43c066c 881 }
882
15dd636f 883 new(&currenttrack1) AliITStrackMI(tracks[ilayer+1][nindexes[ilayer+1][itrack]]);
44347160 884
afd25725 885 // material between SSD and SDD, SDD and SPD
e50912db 886 if (ilayer==3)
887 if(!CorrectForShieldMaterial(&currenttrack1,"SDD","inward")) continue;
888 if (ilayer==1)
889 if(!CorrectForShieldMaterial(&currenttrack1,"SPD","inward")) continue;
8602c008 890
2755f080 891 // detector number
8602c008 892 Double_t phi,z;
893 if (!currenttrack1.GetPhiZat(r,phi,z)) continue;
e43c066c 894 Int_t idet=layer.FindDetectorIndex(phi,z);
e50912db 895
896 Double_t trackGlobXYZ1[3];
897 currenttrack1.GetXYZ(trackGlobXYZ1);
898
2755f080 899 // Get the budget to the primary vertex for the current track being prolonged
900 Double_t budgetToPrimVertex = GetEffectiveThickness();
901
902 // check if we allow a prolongation without point
6518a6c5 903 Int_t skip = CheckSkipLayer(&currenttrack1,ilayer,idet);
2755f080 904 if (skip) {
905 AliITStrackMI* vtrack = new (&tracks[ilayer][ntracks[ilayer]]) AliITStrackMI(currenttrack1);
6518a6c5 906 // propagate to the layer radius
907 Double_t xToGo; vtrack->GetLocalXat(r,xToGo);
908 vtrack->AliExternalTrackParam::PropagateTo(xToGo,GetBz());
2755f080 909 // apply correction for material of the current layer
910 CorrectForLayerMaterial(vtrack,ilayer,trackGlobXYZ1,"inward");
911 vtrack->SetNDeadZone(vtrack->GetNDeadZone()+1);
912 vtrack->SetClIndex(ilayer,0);
ae00569a 913 modstatus = (skip==1 ? 3 : 4); // skipped : out in z
914 LocalModuleCoord(ilayer,idet,vtrack,xloc,zloc); // local module coords
915 vtrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
2755f080 916 if(constrain) vtrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx);
917 ntracks[ilayer]++;
6518a6c5 918 continue;
2755f080 919 }
920
921 // track outside layer acceptance in z
922 if (idet<0) continue;
923
924 //propagate to the intersection with the detector plane
925 const AliITSdetector &det=layer.GetDetector(idet);
926 new(&currenttrack2) AliITStrackMI(currenttrack1);
44347160 927 if (!currenttrack1.Propagate(det.GetPhi(),det.GetR())) continue;
ae00569a 928 LocalModuleCoord(ilayer,idet,&currenttrack1,xloc,zloc); // local module coords
44347160 929 currenttrack2.Propagate(det.GetPhi(),det.GetR());
e43c066c 930 currenttrack1.SetDetectorIndex(idet);
931 currenttrack2.SetDetectorIndex(idet);
6518a6c5 932
afd25725 933 //***************
934 // DEFINITION OF SEARCH ROAD FOR CLUSTERS SELECTION
e43c066c 935 //
44347160 936 Double_t dz=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadZ()*
937 TMath::Sqrt(currenttrack1.GetSigmaZ2() +
938 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
939 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
940 AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer));
941 Double_t dy=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadY()*
942 TMath::Sqrt(currenttrack1.GetSigmaY2() +
943 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
944 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
945 AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer));
afd25725 946
44347160 947 // track at boundary between detectors, enlarge road
e50912db 948 Double_t boundaryWidth=AliITSRecoParam::GetBoundaryWidth();
949 if ( (currenttrack1.GetY()-dy < det.GetYmin()+boundaryWidth) ||
950 (currenttrack1.GetY()+dy > det.GetYmax()-boundaryWidth) ||
951 (currenttrack1.GetZ()-dz < det.GetZmin()+boundaryWidth) ||
952 (currenttrack1.GetZ()+dz > det.GetZmax()-boundaryWidth) ) {
afd25725 953 Float_t tgl = TMath::Abs(currenttrack1.GetTgl());
954 if (tgl > 1.) tgl=1.;
e50912db 955 Double_t deltaXNeighbDets=AliITSRecoParam::GetDeltaXNeighbDets();
956 dz = TMath::Sqrt(dz*dz+deltaXNeighbDets*deltaXNeighbDets*tgl*tgl);
afd25725 957 Float_t snp = TMath::Abs(currenttrack1.GetSnp());
958 if (snp > AliITSReconstructor::GetRecoParam()->GetMaxSnp()) continue;
e50912db 959 dy = TMath::Sqrt(dy*dy+deltaXNeighbDets*deltaXNeighbDets*snp*snp);
44347160 960 } // boundary
e43c066c 961
2755f080 962 // road in global (rphi,z) [i.e. in tracking ref. system]
44347160 963 Double_t zmin = currenttrack1.GetZ() - dz;
964 Double_t zmax = currenttrack1.GetZ() + dz;
965 Double_t ymin = currenttrack1.GetY() + r*det.GetPhi() - dy;
966 Double_t ymax = currenttrack1.GetY() + r*det.GetPhi() + dy;
2755f080 967
afd25725 968 // select clusters in road
e43c066c 969 layer.SelectClusters(zmin,zmax,ymin,ymax);
afd25725 970 //********************
44347160 971
afd25725 972 // Define criteria for track-cluster association
44347160 973 Double_t msz = currenttrack1.GetSigmaZ2() +
974 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
975 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
976 AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer);
977 Double_t msy = currenttrack1.GetSigmaY2() +
978 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
979 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
980 AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer);
981 if (constrain) {
982 msz *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadZC();
983 msy *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadYC();
984 } else {
985 msz *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadZNonC();
986 msy *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadYNonC();
987 }
988 msz = 1./msz; // 1/RoadZ^2
989 msy = 1./msy; // 1/RoadY^2
e43c066c 990 //
e43c066c 991 //
afd25725 992 // LOOP OVER ALL POSSIBLE TRACK PROLONGATIONS ON THIS LAYER
e43c066c 993 //
afd25725 994 const AliITSRecPoint *cl=0;
995 Int_t clidx=-1;
996 Double_t chi2trkcl=AliITSReconstructor::GetRecoParam()->GetMaxChi2(); // init with big value
6518a6c5 997 Bool_t deadzoneSPD=kFALSE;
e43c066c 998 currenttrack = &currenttrack1;
6518a6c5 999
ae00569a 1000 // check if the road contains a dead zone
1001 Int_t dead = CheckDeadZone(ilayer,idet,zmin,zmax);
1002 // create a prolongation without clusters (check also if there are no clusters in the road)
1003 if (dead ||
1004 ((layer.GetNextCluster(clidx,kTRUE))==0 &&
1005 AliITSReconstructor::GetRecoParam()->GetAllowProlongationWithEmptyRoad())) {
6518a6c5 1006 AliITStrackMI * updatetrack = new (&tracks[ilayer][ntracks[ilayer]]) AliITStrackMI(*currenttrack);
1007 updatetrack->SetClIndex(ilayer,0);
ae00569a 1008 if (dead==0) {
1009 modstatus = 5; // no cls in road
1010 } else if (dead==1) {
1011 modstatus = 7; // holes in z in SPD
1012 } else if (dead==2) {
1013 modstatus = 2; // dead from OCDB
1014 }
1015 updatetrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
6518a6c5 1016 // apply correction for material of the current layer
1017 CorrectForLayerMaterial(updatetrack,ilayer,trackGlobXYZ1,"inward");
1018 if (constrain) { // apply vertex constrain
1019 updatetrack->SetConstrain(constrain);
1020 Bool_t isPrim = kTRUE;
1021 if (ilayer<4) { // check that it's close to the vertex
1022 updatetrack->GetDZ(GetX(),GetY(),GetZ(),updatetrack->GetDP()); //I.B.
1023 if (TMath::Abs(updatetrack->GetD(0)/(1.+ilayer)) > // y
1024 AliITSReconstructor::GetRecoParam()->GetMaxDZforPrimTrk() ||
1025 TMath::Abs(updatetrack->GetD(1)/(1.+ilayer)) > // z
1026 AliITSReconstructor::GetRecoParam()->GetMaxDZforPrimTrk()) isPrim=kFALSE;
1027 }
1028 if (isPrim) updatetrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx);
1029 }
ae00569a 1030 if (dead) {
1031 updatetrack->SetNDeadZone(updatetrack->GetNDeadZone()+1);
1032 if (dead==1) { // dead zone at z=0,+-7cm in SPD
1033 updatetrack->SetDeadZoneProbability(GetSPDDeadZoneProbability(updatetrack->GetZ(),TMath::Sqrt(updatetrack->GetSigmaZ2())));
1034 deadzoneSPD=kTRUE;
1035 }
6518a6c5 1036 }
1037 ntracks[ilayer]++;
1038 }
1039
ae00569a 1040 clidx=-1;
6518a6c5 1041 // loop over clusters in the road
afd25725 1042 while ((cl=layer.GetNextCluster(clidx))!=0) {
e43c066c 1043 if (ntracks[ilayer]>95) break; //space for skipped clusters
afd25725 1044 Bool_t changedet =kFALSE;
6518a6c5 1045 if (cl->GetQ()==0 && deadzoneSPD==kTRUE) continue;
afd25725 1046 Int_t idet=cl->GetDetectorIndex();
1047
1048 if (currenttrack->GetDetectorIndex()==idet) { // track already on the cluster's detector
1049 // a first cut on track-cluster distance
1050 if ( (currenttrack->GetZ()-cl->GetZ())*(currenttrack->GetZ()-cl->GetZ())*msz +
1051 (currenttrack->GetY()-cl->GetY())*(currenttrack->GetY()-cl->GetY())*msy > 1. )
1052 continue; // cluster not associated to track
1053 } else { // have to move track to cluster's detector
e43c066c 1054 const AliITSdetector &det=layer.GetDetector(idet);
afd25725 1055 // a first cut on track-cluster distance
e43c066c 1056 Double_t y,z;
1057 if (!currenttrack2.GetProlongationFast(det.GetPhi(),det.GetR(),y,z)) continue;
afd25725 1058 if ( (z-cl->GetZ())*(z-cl->GetZ())*msz +
1059 (y-cl->GetY())*(y-cl->GetY())*msy > 1. )
44347160 1060 continue; // cluster not associated to track
e43c066c 1061 //
15dd636f 1062 new (&backuptrack) AliITStrackMI(currenttrack2);
afd25725 1063 changedet = kTRUE;
e43c066c 1064 currenttrack =&currenttrack2;
1065 if (!currenttrack->Propagate(det.GetPhi(),det.GetR())) {
15dd636f 1066 new (currenttrack) AliITStrackMI(backuptrack);
afd25725 1067 changedet = kFALSE;
e43c066c 1068 continue;
1069 }
1070 currenttrack->SetDetectorIndex(idet);
e50912db 1071 // Get again the budget to the primary vertex
1072 // for the current track being prolonged, if had to change detector
1073 //budgetToPrimVertex = GetEffectiveThickness();// not needed at the moment because anyway we take a mean material for this correction
e43c066c 1074 }
1075
afd25725 1076 // calculate track-clusters chi2
1077 chi2trkcl = GetPredictedChi2MI(currenttrack,cl,ilayer);
1078 // chi2 cut
1079 if (chi2trkcl < AliITSReconstructor::GetRecoParam()->GetMaxChi2s(ilayer)) {
6518a6c5 1080 if (cl->GetQ()==0) deadzoneSPD=kTRUE; // only 1 prolongation with virtual cluster
e43c066c 1081 if (ntracks[ilayer]>=100) continue;
15dd636f 1082 AliITStrackMI * updatetrack = new (&tracks[ilayer][ntracks[ilayer]]) AliITStrackMI(*currenttrack);
b9671574 1083 updatetrack->SetClIndex(ilayer,0);
afd25725 1084 if (changedet) new (&currenttrack2) AliITStrackMI(backuptrack);
ae00569a 1085
6518a6c5 1086 if (cl->GetQ()!=0) { // real cluster
afd25725 1087 if (!UpdateMI(updatetrack,cl,chi2trkcl,(ilayer<<28)+clidx)) continue;
1088 updatetrack->SetSampledEdx(cl->GetQ(),updatetrack->GetNumberOfClusters()-1); //b.b.
ae00569a 1089 modstatus = 1; // found
6518a6c5 1090 } else { // virtual cluster in dead zone
b9671574 1091 updatetrack->SetNDeadZone(updatetrack->GetNDeadZone()+1);
6518a6c5 1092 updatetrack->SetDeadZoneProbability(GetSPDDeadZoneProbability(updatetrack->GetZ(),TMath::Sqrt(updatetrack->GetSigmaZ2())));
ae00569a 1093 modstatus = 7; // holes in z in SPD
1094 }
1095
1096 if (changedet) {
1097 Float_t xlocnewdet,zlocnewdet;
1098 LocalModuleCoord(ilayer,idet,updatetrack,xlocnewdet,zlocnewdet); // local module coords
1099 updatetrack->SetModuleIndexInfo(ilayer,idet,modstatus,xlocnewdet,zlocnewdet);
1100 } else {
1101 updatetrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
e43c066c 1102 }
afd25725 1103 if (cl->IsUsed()) updatetrack->IncrementNUsed();
1104
1105 // apply correction for material of the current layer
e50912db 1106 CorrectForLayerMaterial(updatetrack,ilayer,trackGlobXYZ1,"inward");
1107
afd25725 1108 if (constrain) { // apply vertex constrain
b9671574 1109 updatetrack->SetConstrain(constrain);
e43c066c 1110 Bool_t isPrim = kTRUE;
afd25725 1111 if (ilayer<4) { // check that it's close to the vertex
b9671574 1112 updatetrack->GetDZ(GetX(),GetY(),GetZ(),updatetrack->GetDP()); //I.B.
afd25725 1113 if (TMath::Abs(updatetrack->GetD(0)/(1.+ilayer)) > // y
1114 AliITSReconstructor::GetRecoParam()->GetMaxDZforPrimTrk() ||
1115 TMath::Abs(updatetrack->GetD(1)/(1.+ilayer)) > // z
1116 AliITSReconstructor::GetRecoParam()->GetMaxDZforPrimTrk()) isPrim=kFALSE;
e43c066c 1117 }
afd25725 1118 if (isPrim) updatetrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx);
e43c066c 1119 } //apply vertex constrain
1120 ntracks[ilayer]++;
afd25725 1121 } // create new hypothesis
2755f080 1122 } // loop over possible prolongations
1123
1124 // allow one prolongation without clusters
6518a6c5 1125 if (constrain && itrack<=1 && currenttrack1.GetNSkipped()==0 && deadzoneSPD==kFALSE && ntracks[ilayer]<100) {
15dd636f 1126 AliITStrackMI* vtrack = new (&tracks[ilayer][ntracks[ilayer]]) AliITStrackMI(currenttrack1);
2755f080 1127 // apply correction for material of the current layer
1128 CorrectForLayerMaterial(vtrack,ilayer,trackGlobXYZ1,"inward");
b9671574 1129 vtrack->SetClIndex(ilayer,0);
ae00569a 1130 modstatus = 3; // skipped
1131 vtrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
afd25725 1132 vtrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx);
b9671574 1133 vtrack->IncrementNSkipped();
e43c066c 1134 ntracks[ilayer]++;
1135 }
628e7bb0 1136
2755f080 1137 // allow one prolongation without clusters for tracks with |tgl|>1.1
1138 if (constrain && itrack==0 && TMath::Abs(currenttrack1.GetTgl())>1.1) { //big theta - for low flux
628e7bb0 1139 AliITStrackMI* vtrack = new (&tracks[ilayer][ntracks[ilayer]]) AliITStrackMI(currenttrack1);
2755f080 1140 // apply correction for material of the current layer
1141 CorrectForLayerMaterial(vtrack,ilayer,trackGlobXYZ1,"inward");
b9671574 1142 vtrack->SetClIndex(ilayer,0);
ae00569a 1143 modstatus = 3; // skipped
1144 vtrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
afd25725 1145 vtrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx);
b9671574 1146 vtrack->SetNDeadZone(vtrack->GetNDeadZone()+1);
628e7bb0 1147 ntracks[ilayer]++;
1148 }
1149
e43c066c 1150
e50912db 1151 } // loop over tracks in layer ilayer+1
afd25725 1152
1153 //loop over track candidates for the current layer
e43c066c 1154 //
1155 //
1156 Int_t accepted=0;
1157
afd25725 1158 Int_t golden=0;
e43c066c 1159 for (Int_t itrack=0;itrack<ntracks[ilayer];itrack++){
1160 normalizedchi2[itrack] = NormalizedChi2(&tracks[ilayer][itrack],ilayer);
afd25725 1161 if (normalizedchi2[itrack] <
1162 AliITSReconstructor::GetRecoParam()->GetMaxNormChi2ForGolden(ilayer)) golden++;
44347160 1163 if (ilayer>4) {
1164 accepted++;
1165 } else {
1166 if (constrain) { // constrain
afd25725 1167 if (normalizedchi2[itrack]<AliITSReconstructor::GetRecoParam()->GetMaxNormChi2C(ilayer)+1)
1168 accepted++;
44347160 1169 } else { // !constrain
afd25725 1170 if (normalizedchi2[itrack]<AliITSReconstructor::GetRecoParam()->GetMaxNormChi2NonC(ilayer)+1)
1171 accepted++;
44347160 1172 }
e43c066c 1173 }
1174 }
afd25725 1175 // sort tracks by increasing normalized chi2
1176 TMath::Sort(ntracks[ilayer],normalizedchi2,nindexes[ilayer],kFALSE);
e43c066c 1177 ntracks[ilayer] = TMath::Min(accepted,7+2*ilayer);
afd25725 1178 if (ntracks[ilayer]<golden+2+ilayer) ntracks[ilayer]=TMath::Min(golden+2+ilayer,accepted);
e43c066c 1179 if (ntracks[ilayer]>90) ntracks[ilayer]=90;
afd25725 1180 } // end loop over layers
1181
afd25725 1182
1183 //
1184 // Now select tracks to be kept
1185 //
44347160 1186 Int_t max = constrain ? 20 : 5;
e43c066c 1187
afd25725 1188 // tracks that reach layer 0 (SPD inner)
44347160 1189 for (Int_t i=0; i<TMath::Min(max,ntracks[0]); i++) {
15dd636f 1190 AliITStrackMI & track= tracks[0][nindexes[0][i]];
628e7bb0 1191 if (track.GetNumberOfClusters()<2) continue;
afd25725 1192 if (!constrain && track.GetNormChi2(0) >
6518a6c5 1193 AliITSReconstructor::GetRecoParam()->GetMaxNormChi2NonCForHypothesis()) {
1194 continue;
1195 }
15dd636f 1196 AddTrackHypothesys(new AliITStrackMI(track), esdindex);
e43c066c 1197 }
afd25725 1198
1199 // tracks that reach layer 1 (SPD outer)
628e7bb0 1200 for (Int_t i=0;i<TMath::Min(2,ntracks[1]);i++) {
15dd636f 1201 AliITStrackMI & track= tracks[1][nindexes[1][i]];
e43c066c 1202 if (track.GetNumberOfClusters()<4) continue;
afd25725 1203 if (!constrain && track.GetNormChi2(1) >
1204 AliITSReconstructor::GetRecoParam()->GetMaxNormChi2NonCForHypothesis()) continue;
b9671574 1205 if (constrain) track.IncrementNSkipped();
81e97e0d 1206 if (!constrain) {
b9671574 1207 track.SetD(0,track.GetD(GetX(),GetY()));
afd25725 1208 track.SetNSkipped(track.GetNSkipped()+4./(4.+8.*TMath::Abs(track.GetD(0))));
b9671574 1209 if (track.GetNumberOfClusters()+track.GetNDeadZone()+track.GetNSkipped()>6) {
1210 track.SetNSkipped(6-track.GetNumberOfClusters()+track.GetNDeadZone());
e43c066c 1211 }
1212 }
15dd636f 1213 AddTrackHypothesys(new AliITStrackMI(track), esdindex);
e43c066c 1214 }
afd25725 1215
6518a6c5 1216 // tracks that reach layer 2 (SDD inner), only during non-constrained pass
81e97e0d 1217 if (!constrain){
628e7bb0 1218 for (Int_t i=0;i<TMath::Min(2,ntracks[2]);i++) {
15dd636f 1219 AliITStrackMI & track= tracks[2][nindexes[2][i]];
628e7bb0 1220 if (track.GetNumberOfClusters()<3) continue;
afd25725 1221 if (!constrain && track.GetNormChi2(2) >
1222 AliITSReconstructor::GetRecoParam()->GetMaxNormChi2NonCForHypothesis()) continue;
b9671574 1223 if (constrain) track.SetNSkipped(track.GetNSkipped()+2);
81e97e0d 1224 if (!constrain){
b9671574 1225 track.SetD(0,track.GetD(GetX(),GetY()));
afd25725 1226 track.SetNSkipped(track.GetNSkipped()+7./(7.+8.*TMath::Abs(track.GetD(0))));
b9671574 1227 if (track.GetNumberOfClusters()+track.GetNDeadZone()+track.GetNSkipped()>6) {
1228 track.SetNSkipped(6-track.GetNumberOfClusters()+track.GetNDeadZone());
e43c066c 1229 }
1230 }
15dd636f 1231 AddTrackHypothesys(new AliITStrackMI(track), esdindex);
e43c066c 1232 }
1233 }
81e97e0d 1234
afd25725 1235 if (!constrain) {
81e97e0d 1236 //
afd25725 1237 // register best track of each layer - important for V0 finder
81e97e0d 1238 //
1239 for (Int_t ilayer=0;ilayer<5;ilayer++){
1240 if (ntracks[ilayer]==0) continue;
1241 AliITStrackMI & track= tracks[ilayer][nindexes[ilayer][0]];
1242 if (track.GetNumberOfClusters()<1) continue;
1243 CookLabel(&track,0);
1244 bestarray->AddAt(new AliITStrackMI(track),ilayer);
1245 }
1246 }
1247 //
1248 // update TPC V0 information
1249 //
b9671574 1250 if (otrack->GetESDtrack()->GetV0Index(0)>0){
81e97e0d 1251 Float_t fprimvertex[3]={GetX(),GetY(),GetZ()};
1252 for (Int_t i=0;i<3;i++){
b9671574 1253 Int_t index = otrack->GetESDtrack()->GetV0Index(i);
81e97e0d 1254 if (index==0) break;
44347160 1255 AliV0 *vertex = (AliV0*)fEsd->GetV0(index);
81e97e0d 1256 if (vertex->GetStatus()<0) continue; // rejected V0
1257 //
6c94f330 1258 if (otrack->GetSign()>0) {
81e97e0d 1259 vertex->SetIndex(0,esdindex);
1260 }
1261 else{
1262 vertex->SetIndex(1,esdindex);
1263 }
1264 //find nearest layer with track info
b75d63a7 1265 Double_t xrp[3]; vertex->GetXYZ(xrp[0],xrp[1],xrp[2]); //I.B.
1266 Int_t nearestold = GetNearestLayer(xrp); //I.B.
81e97e0d 1267 Int_t nearest = nearestold;
1268 for (Int_t ilayer =nearest;ilayer<8;ilayer++){
1269 if (ntracks[nearest]==0){
1270 nearest = ilayer;
1271 }
1272 }
1273 //
1274 AliITStrackMI & track= tracks[nearest][nindexes[nearest][0]];
1275 if (nearestold<5&&nearest<5){
b9671574 1276 Bool_t accept = track.GetNormChi2(nearest)<10;
81e97e0d 1277 if (accept){
6c94f330 1278 if (track.GetSign()>0) {
b75d63a7 1279 vertex->SetParamP(track);
81e97e0d 1280 vertex->Update(fprimvertex);
44347160 1281 //vertex->SetIndex(0,track.fESDtrack->GetID());
81e97e0d 1282 if (track.GetNumberOfClusters()>2) AddTrackHypothesys(new AliITStrackMI(track), esdindex);
1283 }else{
b75d63a7 1284 vertex->SetParamN(track);
81e97e0d 1285 vertex->Update(fprimvertex);
1286 //vertex->SetIndex(1,track.fESDtrack->GetID());
1287 if (track.GetNumberOfClusters()>2) AddTrackHypothesys(new AliITStrackMI(track), esdindex);
1288 }
1289 vertex->SetStatus(vertex->GetStatus()+1);
1290 }else{
44347160 1291 //vertex->SetStatus(-2); // reject V0 - not enough clusters
81e97e0d 1292 }
1293 }
81e97e0d 1294 }
afd25725 1295 }
1296
e43c066c 1297}
44347160 1298//------------------------------------------------------------------------
e43c066c 1299AliITStrackerMI::AliITSlayer & AliITStrackerMI::GetLayer(Int_t layer) const
1300{
1301 //--------------------------------------------------------------------
1302 //
1303 //
1304 return fgLayers[layer];
1305}
44347160 1306//------------------------------------------------------------------------
8221b41b 1307AliITStrackerMI::AliITSlayer::AliITSlayer():
1308fR(0),
1309fPhiOffset(0),
1310fNladders(0),
1311fZOffset(0),
1312fNdetectors(0),
1313fDetectors(0),
1314fN(0),
1315fDy5(0),
1316fDy10(0),
1317fDy20(0),
1318fClustersCs(0),
1319fClusterIndexCs(0),
1320fYcs(0),
1321fZcs(0),
1322fNcs(0),
1323fCurrentSlice(-1),
1324fZmax(0),
1325fYmin(0),
1326fYmax(0),
1327fI(0),
1328fImax(0),
1329fSkip(0),
1330fAccepted(0),
1331fRoad(0){
e43c066c 1332 //--------------------------------------------------------------------
1333 //default AliITSlayer constructor
1334 //--------------------------------------------------------------------
e50912db 1335 for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++) {
e43c066c 1336 fClusterWeight[i]=0;
1337 fClusterTracks[0][i]=-1;
1338 fClusterTracks[1][i]=-1;
1339 fClusterTracks[2][i]=-1;
1340 fClusterTracks[3][i]=-1;
1341 }
1342}
44347160 1343//------------------------------------------------------------------------
e43c066c 1344AliITStrackerMI::AliITSlayer::
8221b41b 1345AliITSlayer(Double_t r,Double_t p,Double_t z,Int_t nl,Int_t nd):
1346fR(r),
1347fPhiOffset(p),
1348fNladders(nl),
1349fZOffset(z),
1350fNdetectors(nd),
1351fDetectors(0),
1352fN(0),
1353fDy5(0),
1354fDy10(0),
1355fDy20(0),
1356fClustersCs(0),
1357fClusterIndexCs(0),
1358fYcs(0),
1359fZcs(0),
1360fNcs(0),
1361fCurrentSlice(-1),
1362fZmax(0),
1363fYmin(0),
1364fYmax(0),
1365fI(0),
1366fImax(0),
1367fSkip(0),
1368fAccepted(0),
1369fRoad(0) {
e43c066c 1370 //--------------------------------------------------------------------
1371 //main AliITSlayer constructor
1372 //--------------------------------------------------------------------
e43c066c 1373 fDetectors=new AliITSdetector[fNladders*fNdetectors];
afd25725 1374 fRoad=2*fR*TMath::Sqrt(TMath::Pi()/1.);//assuming that there's only one cluster
e43c066c 1375}
44347160 1376//------------------------------------------------------------------------
8221b41b 1377AliITStrackerMI::AliITSlayer::AliITSlayer(const AliITSlayer& layer):
1378fR(layer.fR),
1379fPhiOffset(layer.fPhiOffset),
1380fNladders(layer.fNladders),
1381fZOffset(layer.fZOffset),
1382fNdetectors(layer.fNdetectors),
1383fDetectors(layer.fDetectors),
1384fN(layer.fN),
1385fDy5(layer.fDy5),
1386fDy10(layer.fDy10),
1387fDy20(layer.fDy20),
1388fClustersCs(layer.fClustersCs),
1389fClusterIndexCs(layer.fClusterIndexCs),
1390fYcs(layer.fYcs),
1391fZcs(layer.fZcs),
1392fNcs(layer.fNcs),
1393fCurrentSlice(layer.fCurrentSlice),
1394fZmax(layer.fZmax),
1395fYmin(layer.fYmin),
1396fYmax(layer.fYmax),
1397fI(layer.fI),
1398fImax(layer.fImax),
1399fSkip(layer.fSkip),
1400fAccepted(layer.fAccepted),
1401fRoad(layer.fRoad){
1402 //Copy constructor
1403}
44347160 1404//------------------------------------------------------------------------
e43c066c 1405AliITStrackerMI::AliITSlayer::~AliITSlayer() {
1406 //--------------------------------------------------------------------
1407 // AliITSlayer destructor
1408 //--------------------------------------------------------------------
1409 delete[] fDetectors;
1410 for (Int_t i=0; i<fN; i++) delete fClusters[i];
e50912db 1411 for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++) {
e43c066c 1412 fClusterWeight[i]=0;
1413 fClusterTracks[0][i]=-1;
1414 fClusterTracks[1][i]=-1;
1415 fClusterTracks[2][i]=-1;
1416 fClusterTracks[3][i]=-1;
1417 }
1418}
44347160 1419//------------------------------------------------------------------------
e43c066c 1420void AliITStrackerMI::AliITSlayer::ResetClusters() {
1421 //--------------------------------------------------------------------
1422 // This function removes loaded clusters
1423 //--------------------------------------------------------------------
1424 for (Int_t i=0; i<fN; i++) delete fClusters[i];
e50912db 1425 for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++){
e43c066c 1426 fClusterWeight[i]=0;
1427 fClusterTracks[0][i]=-1;
1428 fClusterTracks[1][i]=-1;
1429 fClusterTracks[2][i]=-1;
1430 fClusterTracks[3][i]=-1;
1431 }
1432
1433 fN=0;
1434 fI=0;
1435}
44347160 1436//------------------------------------------------------------------------
e43c066c 1437void AliITStrackerMI::AliITSlayer::ResetWeights() {
1438 //--------------------------------------------------------------------
1439 // This function reset weights of the clusters
1440 //--------------------------------------------------------------------
e50912db 1441 for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++) {
e43c066c 1442 fClusterWeight[i]=0;
1443 fClusterTracks[0][i]=-1;
1444 fClusterTracks[1][i]=-1;
1445 fClusterTracks[2][i]=-1;
1446 fClusterTracks[3][i]=-1;
1447 }
1448 for (Int_t i=0; i<fN;i++) {
00a7cc50 1449 AliITSRecPoint * cl = (AliITSRecPoint*)GetCluster(i);
e43c066c 1450 if (cl&&cl->IsUsed()) cl->Use();
1451 }
1452
1453}
44347160 1454//------------------------------------------------------------------------
e43c066c 1455void AliITStrackerMI::AliITSlayer::ResetRoad() {
1456 //--------------------------------------------------------------------
1457 // This function calculates the road defined by the cluster density
1458 //--------------------------------------------------------------------
1459 Int_t n=0;
1460 for (Int_t i=0; i<fN; i++) {
1461 if (TMath::Abs(fClusters[i]->GetZ())<fR) n++;
1462 }
afd25725 1463 if (n>1) fRoad=2*fR*TMath::Sqrt(TMath::Pi()/n);
e43c066c 1464}
44347160 1465//------------------------------------------------------------------------
afd25725 1466Int_t AliITStrackerMI::AliITSlayer::InsertCluster(AliITSRecPoint *cl) {
e43c066c 1467 //--------------------------------------------------------------------
1468 //This function adds a cluster to this layer
1469 //--------------------------------------------------------------------
e50912db 1470 if (fN==AliITSRecoParam::GetMaxClusterPerLayer()) {
e43c066c 1471 ::Error("InsertCluster","Too many clusters !\n");
1472 return 1;
1473 }
1474 fCurrentSlice=-1;
afd25725 1475 fClusters[fN]=cl;
1d4090b7 1476 fN++;
afd25725 1477 AliITSdetector &det=GetDetector(cl->GetDetectorIndex());
1478 if (cl->GetY()<det.GetYmin()) det.SetYmin(cl->GetY());
1479 if (cl->GetY()>det.GetYmax()) det.SetYmax(cl->GetY());
1480 if (cl->GetZ()<det.GetZmin()) det.SetZmin(cl->GetZ());
1481 if (cl->GetZ()>det.GetZmax()) det.SetZmax(cl->GetZ());
e43c066c 1482
1483 return 0;
1484}
44347160 1485//------------------------------------------------------------------------
e43c066c 1486void AliITStrackerMI::AliITSlayer::SortClusters()
1487{
1488 //
1489 //sort clusters
1490 //
00a7cc50 1491 AliITSRecPoint **clusters = new AliITSRecPoint*[fN];
1d4090b7 1492 Float_t *z = new Float_t[fN];
1493 Int_t * index = new Int_t[fN];
1494 //
1495 for (Int_t i=0;i<fN;i++){
1496 z[i] = fClusters[i]->GetZ();
1497 }
1498 TMath::Sort(fN,z,index,kFALSE);
1499 for (Int_t i=0;i<fN;i++){
1500 clusters[i] = fClusters[index[i]];
1501 }
1502 //
1503 for (Int_t i=0;i<fN;i++){
1504 fClusters[i] = clusters[i];
1505 fZ[i] = fClusters[i]->GetZ();
1506 AliITSdetector &det=GetDetector(fClusters[i]->GetDetectorIndex());
1507 Double_t y=fR*det.GetPhi() + fClusters[i]->GetY();
1508 if (y>2.*fR*TMath::Pi()) y -= 2.*fR*TMath::Pi();
1509 fY[i] = y;
1510 }
1511 delete[] index;
1512 delete[] z;
1513 delete[] clusters;
1514 //
1515
e43c066c 1516 fYB[0]=10000000;
1517 fYB[1]=-10000000;
1518 for (Int_t i=0;i<fN;i++){
1519 if (fY[i]<fYB[0]) fYB[0]=fY[i];
1520 if (fY[i]>fYB[1]) fYB[1]=fY[i];
1521 fClusterIndex[i] = i;
1522 }
1523 //
1524 // fill slices
1525 fDy5 = (fYB[1]-fYB[0])/5.;
1526 fDy10 = (fYB[1]-fYB[0])/10.;
1527 fDy20 = (fYB[1]-fYB[0])/20.;
1528 for (Int_t i=0;i<6;i++) fN5[i] =0;
1529 for (Int_t i=0;i<11;i++) fN10[i]=0;
1530 for (Int_t i=0;i<21;i++) fN20[i]=0;
1531 //
1532 for (Int_t i=0;i<6;i++) {fBy5[i][0] = fYB[0]+(i-0.75)*fDy5; fBy5[i][1] = fYB[0]+(i+0.75)*fDy5;}
1533 for (Int_t i=0;i<11;i++) {fBy10[i][0] = fYB[0]+(i-0.75)*fDy10; fBy10[i][1] = fYB[0]+(i+0.75)*fDy10;}
1534 for (Int_t i=0;i<21;i++) {fBy20[i][0] = fYB[0]+(i-0.75)*fDy20; fBy20[i][1] = fYB[0]+(i+0.75)*fDy20;}
1535 //
1536 //
1d4090b7 1537 for (Int_t i=0;i<fN;i++)
1538 for (Int_t irot=-1;irot<=1;irot++){
1539 Float_t curY = fY[i]+irot*TMath::TwoPi()*fR;
1540 // slice 5
1541 for (Int_t slice=0; slice<6;slice++){
e50912db 1542 if (fBy5[slice][0]<curY && curY<fBy5[slice][1]&&fN5[slice]<AliITSRecoParam::GetMaxClusterPerLayer5()){
1d4090b7 1543 fClusters5[slice][fN5[slice]] = fClusters[i];
1544 fY5[slice][fN5[slice]] = curY;
1545 fZ5[slice][fN5[slice]] = fZ[i];
1546 fClusterIndex5[slice][fN5[slice]]=i;
1547 fN5[slice]++;
1548 }
e43c066c 1549 }
1d4090b7 1550 // slice 10
1551 for (Int_t slice=0; slice<11;slice++){
e50912db 1552 if (fBy10[slice][0]<curY && curY<fBy10[slice][1]&&fN10[slice]<AliITSRecoParam::GetMaxClusterPerLayer10()){
1d4090b7 1553 fClusters10[slice][fN10[slice]] = fClusters[i];
1554 fY10[slice][fN10[slice]] = curY;
1555 fZ10[slice][fN10[slice]] = fZ[i];
1556 fClusterIndex10[slice][fN10[slice]]=i;
1557 fN10[slice]++;
1558 }
e43c066c 1559 }
1d4090b7 1560 // slice 20
1561 for (Int_t slice=0; slice<21;slice++){
e50912db 1562 if (fBy20[slice][0]<curY && curY<fBy20[slice][1]&&fN20[slice]<AliITSRecoParam::GetMaxClusterPerLayer20()){
1d4090b7 1563 fClusters20[slice][fN20[slice]] = fClusters[i];
1564 fY20[slice][fN20[slice]] = curY;
1565 fZ20[slice][fN20[slice]] = fZ[i];
1566 fClusterIndex20[slice][fN20[slice]]=i;
1567 fN20[slice]++;
1568 }
1569 }
e43c066c 1570 }
1d4090b7 1571
1572 //
1573 // consistency check
1574 //
1575 for (Int_t i=0;i<fN-1;i++){
1576 if (fZ[i]>fZ[i+1]){
ae00569a 1577 printf("Bug\n");
e43c066c 1578 }
1579 }
1d4090b7 1580 //
1581 for (Int_t slice=0;slice<21;slice++)
1582 for (Int_t i=0;i<fN20[slice]-1;i++){
1583 if (fZ20[slice][i]>fZ20[slice][i+1]){
ae00569a 1584 printf("Bug\n");
1d4090b7 1585 }
1586 }
1587
1588
e43c066c 1589}
44347160 1590//------------------------------------------------------------------------
e43c066c 1591Int_t AliITStrackerMI::AliITSlayer::FindClusterIndex(Float_t z) const {
1592 //--------------------------------------------------------------------
1593 // This function returns the index of the nearest cluster
1594 //--------------------------------------------------------------------
1595 Int_t ncl=0;
1596 const Float_t *zcl;
1597 if (fCurrentSlice<0) {
1598 ncl = fN;
1599 zcl = fZ;
1600 }
1601 else{
1602 ncl = fNcs;
1603 zcl = fZcs;;
1604 }
1605
1606 if (ncl==0) return 0;
1607 Int_t b=0, e=ncl-1, m=(b+e)/2;
1608 for (; b<e; m=(b+e)/2) {
1609 // if (z > fClusters[m]->GetZ()) b=m+1;
1610 if (z > zcl[m]) b=m+1;
1611 else e=m;
1612 }
1613 return m;
1614}
44347160 1615//------------------------------------------------------------------------
e43c066c 1616void AliITStrackerMI::AliITSlayer::
1617SelectClusters(Double_t zmin,Double_t zmax,Double_t ymin, Double_t ymax) {
1618 //--------------------------------------------------------------------
1619 // This function sets the "window"
1620 //--------------------------------------------------------------------
1621
628e7bb0 1622 Double_t circle=2*TMath::Pi()*fR;
e43c066c 1623 fYmin = ymin; fYmax =ymax;
1624 Float_t ymiddle = (fYmin+fYmax)*0.5;
ae00569a 1625 if (ymiddle<fYB[0]) {
1626 fYmin+=circle; fYmax+=circle; ymiddle+=circle;
1627 } else if (ymiddle>fYB[1]) {
1628 fYmin-=circle; fYmax-=circle; ymiddle-=circle;
e43c066c 1629 }
ae00569a 1630
e43c066c 1631 //
1632 fCurrentSlice =-1;
1633 // defualt take all
1634 fClustersCs = fClusters;
1635 fClusterIndexCs = fClusterIndex;
1636 fYcs = fY;
1637 fZcs = fZ;
1638 fNcs = fN;
628e7bb0 1639 //
e43c066c 1640 //is in 20 slice?
1641 if (fCurrentSlice<0&&TMath::Abs(fYmax-fYmin)<1.49*fDy20){
1642 Int_t slice = int(0.5+(ymiddle-fYB[0])/fDy20);
1643 if (slice<0) slice=0;
1644 if (slice>20) slice=20;
1645 Bool_t isOK = (fYmin>fBy20[slice][0]&&fYmax<fBy20[slice][1]);
1646 if (isOK) {
1647 fCurrentSlice=slice;
1648 fClustersCs = fClusters20[fCurrentSlice];
1649 fClusterIndexCs = fClusterIndex20[fCurrentSlice];
1650 fYcs = fY20[fCurrentSlice];
1651 fZcs = fZ20[fCurrentSlice];
1652 fNcs = fN20[fCurrentSlice];
1653 }
1654 }
1655 //
1656 //is in 10 slice?
1657 if (fCurrentSlice<0&&TMath::Abs(fYmax-fYmin)<1.49*fDy10){
1658 Int_t slice = int(0.5+(ymiddle-fYB[0])/fDy10);
1659 if (slice<0) slice=0;
1660 if (slice>10) slice=10;
1661 Bool_t isOK = (fYmin>fBy10[slice][0]&&fYmax<fBy10[slice][1]);
1662 if (isOK) {
1663 fCurrentSlice=slice;
1664 fClustersCs = fClusters10[fCurrentSlice];
1665 fClusterIndexCs = fClusterIndex10[fCurrentSlice];
1666 fYcs = fY10[fCurrentSlice];
1667 fZcs = fZ10[fCurrentSlice];
1668 fNcs = fN10[fCurrentSlice];
1669 }
1670 }
1671 //
1672 //is in 5 slice?
1673 if (fCurrentSlice<0&&TMath::Abs(fYmax-fYmin)<1.49*fDy5){
1674 Int_t slice = int(0.5+(ymiddle-fYB[0])/fDy5);
1675 if (slice<0) slice=0;
1676 if (slice>5) slice=5;
1677 Bool_t isOK = (fYmin>fBy5[slice][0]&&fYmax<fBy5[slice][1]);
ae00569a 1678 if (isOK) {
e43c066c 1679 fCurrentSlice=slice;
1680 fClustersCs = fClusters5[fCurrentSlice];
1681 fClusterIndexCs = fClusterIndex5[fCurrentSlice];
1682 fYcs = fY5[fCurrentSlice];
1683 fZcs = fZ5[fCurrentSlice];
1684 fNcs = fN5[fCurrentSlice];
1685 }
1686 }
628e7bb0 1687 //
e43c066c 1688 fI=FindClusterIndex(zmin); fZmax=zmax;
1689 fImax = TMath::Min(FindClusterIndex(zmax)+1,fNcs);
1690 fSkip = 0;
1691 fAccepted =0;
6518a6c5 1692
1693 return;
e43c066c 1694}
44347160 1695//------------------------------------------------------------------------
628e7bb0 1696Int_t AliITStrackerMI::AliITSlayer::
1697FindDetectorIndex(Double_t phi, Double_t z) const {
1698 //--------------------------------------------------------------------
1699 //This function finds the detector crossed by the track
1700 //--------------------------------------------------------------------
31fb8575 1701 Double_t dphi;
1702 if (fZOffset<0) // old geometry
1703 dphi = -(phi-fPhiOffset);
1704 else // new geometry
1705 dphi = phi-fPhiOffset;
1706
6518a6c5 1707
628e7bb0 1708 if (dphi < 0) dphi += 2*TMath::Pi();
1709 else if (dphi >= 2*TMath::Pi()) dphi -= 2*TMath::Pi();
1710 Int_t np=Int_t(dphi*fNladders*0.5/TMath::Pi()+0.5);
1711 if (np>=fNladders) np-=fNladders;
1712 if (np<0) np+=fNladders;
1713
6518a6c5 1714
628e7bb0 1715 Double_t dz=fZOffset-z;
6518a6c5 1716 Double_t nnz = dz*(fNdetectors-1)*0.5/fZOffset+0.5;
1717 Int_t nz = (nnz<0 ? -1 : (Int_t)nnz);
628e7bb0 1718 if (nz>=fNdetectors) return -1;
1719 if (nz<0) return -1;
1720
1721 return np*fNdetectors + nz;
1722}
44347160 1723//------------------------------------------------------------------------
ae00569a 1724const AliITSRecPoint *AliITStrackerMI::AliITSlayer::GetNextCluster(Int_t &ci,Bool_t test)
1725{
e43c066c 1726 //--------------------------------------------------------------------
1727 // This function returns clusters within the "window"
1728 //--------------------------------------------------------------------
1729
ae00569a 1730 if (fCurrentSlice<0) {
e43c066c 1731 Double_t rpi2 = 2.*fR*TMath::Pi();
1732 for (Int_t i=fI; i<fImax; i++) {
1733 Double_t y = fY[i];
1734 if (fYmax<y) y -= rpi2;
1d4090b7 1735 if (fYmin>y) y += rpi2;
e43c066c 1736 if (y<fYmin) continue;
1737 if (y>fYmax) continue;
1738 if (fClusters[i]->GetQ()==0&&fSkip==2) continue;
1739 ci=i;
ae00569a 1740 if (!test) fI=i+1;
e43c066c 1741 return fClusters[i];
1742 }
ae00569a 1743 } else {
e43c066c 1744 for (Int_t i=fI; i<fImax; i++) {
1745 if (fYcs[i]<fYmin) continue;
1746 if (fYcs[i]>fYmax) continue;
1747 if (fClustersCs[i]->GetQ()==0&&fSkip==2) continue;
1748 ci=fClusterIndexCs[i];
ae00569a 1749 if (!test) fI=i+1;
e43c066c 1750 return fClustersCs[i];
1751 }
1752 }
1753 return 0;
1754}
44347160 1755//------------------------------------------------------------------------
e43c066c 1756Double_t AliITStrackerMI::AliITSlayer::GetThickness(Double_t y,Double_t z,Double_t &x0)
1757const {
1758 //--------------------------------------------------------------------
afd25725 1759 // This function returns the layer thickness at this point (units X0)
e43c066c 1760 //--------------------------------------------------------------------
1761 Double_t d=0.0085;
e50912db 1762 x0=AliITSRecoParam::GetX0Air();
e43c066c 1763 if (43<fR&&fR<45) { //SSD2
1764 Double_t dd=0.0034;
1765 d=dd;
1766 if (TMath::Abs(y-0.00)>3.40) d+=dd;
1767 if (TMath::Abs(y-1.90)<0.45) {d+=(0.013-0.0034);}
1768 if (TMath::Abs(y+1.90)<0.45) {d+=(0.013-0.0034);}
1769 for (Int_t i=0; i<12; i++) {
1770 if (TMath::Abs(z-3.9*(i+0.5))<0.15) {
1771 if (TMath::Abs(y-0.00)>3.40) d+=dd;
1772 d+=0.0034;
1773 break;
1774 }
1775 if (TMath::Abs(z+3.9*(i+0.5))<0.15) {
1776 if (TMath::Abs(y-0.00)>3.40) d+=dd;
1777 d+=0.0034;
1778 break;
1779 }
1780 if (TMath::Abs(z-3.4-3.9*i)<0.50) {d+=(0.016-0.0034); break;}
1781 if (TMath::Abs(z+0.5+3.9*i)<0.50) {d+=(0.016-0.0034); break;}
1782 }
1783 } else
1784 if (37<fR&&fR<41) { //SSD1
1785 Double_t dd=0.0034;
1786 d=dd;
1787 if (TMath::Abs(y-0.00)>3.40) d+=dd;
1788 if (TMath::Abs(y-1.90)<0.45) {d+=(0.013-0.0034);}
1789 if (TMath::Abs(y+1.90)<0.45) {d+=(0.013-0.0034);}
1790 for (Int_t i=0; i<11; i++) {
1791 if (TMath::Abs(z-3.9*i)<0.15) {
1792 if (TMath::Abs(y-0.00)>3.40) d+=dd;
1793 d+=dd;
1794 break;
1795 }
1796 if (TMath::Abs(z+3.9*i)<0.15) {
1797 if (TMath::Abs(y-0.00)>3.40) d+=dd;
1798 d+=dd;
1799 break;
1800 }
1801 if (TMath::Abs(z-1.85-3.9*i)<0.50) {d+=(0.016-0.0034); break;}
1802 if (TMath::Abs(z+2.05+3.9*i)<0.50) {d+=(0.016-0.0034); break;}
1803 }
1804 } else
1805 if (13<fR&&fR<26) { //SDD
1806 Double_t dd=0.0033;
1807 d=dd;
1808 if (TMath::Abs(y-0.00)>3.30) d+=dd;
1809
1810 if (TMath::Abs(y-1.80)<0.55) {
1811 d+=0.016;
1812 for (Int_t j=0; j<20; j++) {
1813 if (TMath::Abs(z+0.7+1.47*j)<0.12) {d+=0.08; x0=9.; break;}
1814 if (TMath::Abs(z-0.7-1.47*j)<0.12) {d+=0.08; x0=9.; break;}
1815 }
1816 }
1817 if (TMath::Abs(y+1.80)<0.55) {
1818 d+=0.016;
1819 for (Int_t j=0; j<20; j++) {
1820 if (TMath::Abs(z-0.7-1.47*j)<0.12) {d+=0.08; x0=9.; break;}
1821 if (TMath::Abs(z+0.7+1.47*j)<0.12) {d+=0.08; x0=9.; break;}
1822 }
1823 }
1824
1825 for (Int_t i=0; i<4; i++) {
1826 if (TMath::Abs(z-7.3*i)<0.60) {
1827 d+=dd;
1828 if (TMath::Abs(y-0.00)>3.30) d+=dd;
1829 break;
1830 }
1831 if (TMath::Abs(z+7.3*i)<0.60) {
1832 d+=dd;
1833 if (TMath::Abs(y-0.00)>3.30) d+=dd;
1834 break;
1835 }
1836 }
1837 } else
1838 if (6<fR&&fR<8) { //SPD2
1839 Double_t dd=0.0063; x0=21.5;
1840 d=dd;
1841 if (TMath::Abs(y-3.08)>0.5) d+=dd;
afd25725 1842 if (TMath::Abs(y-3.03)<0.10) d+=0.014;
e43c066c 1843 } else
1844 if (3<fR&&fR<5) { //SPD1
1845 Double_t dd=0.0063; x0=21.5;
1846 d=dd;
1847 if (TMath::Abs(y+0.21)>0.6) d+=dd;
afd25725 1848 if (TMath::Abs(y+0.10)<0.10) d+=0.014;
e43c066c 1849 }
1850
1851 return d;
1852}
44347160 1853//------------------------------------------------------------------------
e50912db 1854Double_t AliITStrackerMI::GetEffectiveThickness()
e43c066c 1855{
1856 //--------------------------------------------------------------------
afd25725 1857 // Returns the thickness between the current layer and the vertex (units X0)
e43c066c 1858 //--------------------------------------------------------------------
e43c066c 1859
e50912db 1860 if(fUseTGeo!=0) {
1861 if(fxOverX0Layer[0]<0) BuildMaterialLUT("Layers");
1862 if(fxOverX0Shield[0]<0) BuildMaterialLUT("Shields");
1863 if(fxOverX0Pipe<0) BuildMaterialLUT("Pipe");
1864 }
1865
afd25725 1866 // beam pipe
e50912db 1867 Double_t dPipe = (fUseTGeo==0 ? AliITSRecoParam::GetdPipe() : fxOverX0Pipe);
1868 Double_t d=dPipe*AliITSRecoParam::GetrPipe()*AliITSRecoParam::GetrPipe();
afd25725 1869
1870 // layers
1871 Double_t x0=0;
e43c066c 1872 Double_t xn=fgLayers[fI].GetR();
1873 for (Int_t i=0; i<fI; i++) {
1874 Double_t xi=fgLayers[i].GetR();
e50912db 1875 Double_t dLayer = (fUseTGeo==0 ? fgLayers[i].GetThickness(0,0,x0) : fxOverX0Layer[i]);
1876 d+=dLayer*xi*xi;
e43c066c 1877 }
1878
afd25725 1879 // shields
e43c066c 1880 if (fI>1) {
e50912db 1881 Double_t dshieldSPD = (fUseTGeo==0 ? AliITSRecoParam::Getdshield(0) : fxOverX0Shield[0]);
1882 d+=dshieldSPD*AliITSRecoParam::GetrInsideShield(0)*AliITSRecoParam::GetrInsideShield(0);
e43c066c 1883 }
e43c066c 1884 if (fI>3) {
e50912db 1885 Double_t dshieldSDD = (fUseTGeo==0 ? AliITSRecoParam::Getdshield(1) : fxOverX0Shield[1]);
1886 d+=dshieldSDD*AliITSRecoParam::GetrInsideShield(1)*AliITSRecoParam::GetrInsideShield(1);
e43c066c 1887 }
e43c066c 1888 return d/(xn*xn);
1889}
44347160 1890//------------------------------------------------------------------------
e43c066c 1891Int_t AliITStrackerMI::AliITSlayer::InRoad() const {
ae00569a 1892 //-------------------------------------------------------------------
e43c066c 1893 // This function returns number of clusters within the "window"
1894 //--------------------------------------------------------------------
1895 Int_t ncl=0;
1896 for (Int_t i=fI; i<fN; i++) {
00a7cc50 1897 const AliITSRecPoint *c=fClusters[i];
e43c066c 1898 if (c->GetZ() > fZmax) break;
1899 if (c->IsUsed()) continue;
1900 const AliITSdetector &det=GetDetector(c->GetDetectorIndex());
1901 Double_t y=fR*det.GetPhi() + c->GetY();
1902
1903 if (y>2.*fR*TMath::Pi()) y -= 2*fR*TMath::Pi();
1904 if (y>1.*fR*TMath::Pi() && fYmax<y) y -= 2*fR*TMath::Pi();
1905
1906 if (y<fYmin) continue;
1907 if (y>fYmax) continue;
1908 ncl++;
1909 }
1910 return ncl;
1911}
44347160 1912//------------------------------------------------------------------------
ae00569a 1913Bool_t AliITStrackerMI::RefitAt(Double_t xx,AliITStrackMI *track,
7167ae53 1914 const AliITStrackMI *clusters,Bool_t extra, Bool_t planeeff)
ae00569a 1915{
e43c066c 1916 //--------------------------------------------------------------------
ae00569a 1917 // This function refits the track "track" at the position "x" using
1918 // the clusters from "clusters"
ef7253ac 1919 // If "extra"==kTRUE,
ae00569a 1920 // the clusters from overlapped modules get attached to "track"
7167ae53 1921 // If "planeff"==kTRUE,
1922 // special approach for plane efficiency evaluation is applyed
e43c066c 1923 //--------------------------------------------------------------------
6518a6c5 1924
e50912db 1925 Int_t index[AliITSgeomTGeo::kNLayers];
e43c066c 1926 Int_t k;
e50912db 1927 for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) index[k]=-1;
ae00569a 1928 Int_t nc=clusters->GetNumberOfClusters();
e43c066c 1929 for (k=0; k<nc; k++) {
ae00569a 1930 Int_t idx=clusters->GetClusterIndex(k);
1931 Int_t ilayer=(idx&0xf0000000)>>28;
1932 index[ilayer]=idx;
e43c066c 1933 }
67c1e979 1934
7167ae53 1935 return RefitAt(xx,track,index,extra,planeeff); // call the method below
67c1e979 1936}
44347160 1937//------------------------------------------------------------------------
ae00569a 1938Bool_t AliITStrackerMI::RefitAt(Double_t xx,AliITStrackMI *track,
7167ae53 1939 const Int_t *clusters,Bool_t extra, Bool_t planeeff)
ae00569a 1940{
67c1e979 1941 //--------------------------------------------------------------------
ae00569a 1942 // This function refits the track "track" at the position "x" using
67c1e979 1943 // the clusters from array
ae00569a 1944 // If "extra"==kTRUE,
1945 // the clusters from overlapped modules get attached to "track"
7167ae53 1946 // If "planeff"==kTRUE,
1947 // special approach for plane efficiency evaluation is applyed
67c1e979 1948 //--------------------------------------------------------------------
e50912db 1949 Int_t index[AliITSgeomTGeo::kNLayers];
67c1e979 1950 Int_t k;
e50912db 1951 for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) index[k]=-1;
67c1e979 1952 //
e50912db 1953 for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) {
ae00569a 1954 index[k]=clusters[k];
67c1e979 1955 }
1956
afd25725 1957 // special for cosmics: check which the innermost layer crossed
1958 // by the track
1959 Int_t innermostlayer=5;
ae00569a 1960 Double_t drphi = TMath::Abs(track->GetD(0.,0.));
1961 for(innermostlayer=0; innermostlayer<AliITSgeomTGeo::GetNLayers(); innermostlayer++) {
1962 if(drphi < fgLayers[innermostlayer].GetR()) break;
1963 }
1964 //printf(" drphi %f innermost %d\n",drphi,innermostlayer);
afd25725 1965
ae00569a 1966 Int_t modstatus=1; // found
1967 Float_t xloc,zloc;
67c1e979 1968 Int_t from, to, step;
ae00569a 1969 if (xx > track->GetX()) {
e50912db 1970 from=innermostlayer; to=AliITSgeomTGeo::GetNLayers();
67c1e979 1971 step=+1;
1972 } else {
e50912db 1973 from=AliITSgeomTGeo::GetNLayers()-1; to=innermostlayer-1;
67c1e979 1974 step=-1;
1975 }
ae00569a 1976 TString dir = (step>0 ? "outward" : "inward");
67c1e979 1977
ae00569a 1978 for (Int_t ilayer = from; ilayer != to; ilayer += step) {
6518a6c5 1979 AliITSlayer &layer=fgLayers[ilayer];
67c1e979 1980 Double_t r=layer.GetR();
afd25725 1981 if (step<0 && xx>r) break;
1982
1983 // material between SSD and SDD, SDD and SPD
6518a6c5 1984 Double_t hI=ilayer-0.5*step;
e50912db 1985 if (TMath::Abs(hI-3.5)<0.01) // SDDouter
ae00569a 1986 if(!CorrectForShieldMaterial(track,"SDD",dir)) return kFALSE;
e50912db 1987 if (TMath::Abs(hI-1.5)<0.01) // SPDouter
ae00569a 1988 if(!CorrectForShieldMaterial(track,"SPD",dir)) return kFALSE;
67c1e979 1989
1990 // remember old position [SR, GSI 18.02.2003]
1991 Double_t oldX=0., oldY=0., oldZ=0.;
ae00569a 1992 if (track->IsStartedTimeIntegral() && step==1) {
1993 track->GetGlobalXYZat(track->GetX(),oldX,oldY,oldZ);
67c1e979 1994 }
1995 //
ae00569a 1996
afd25725 1997 Double_t oldGlobXYZ[3];
ae00569a 1998 track->GetXYZ(oldGlobXYZ);
afd25725 1999
8602c008 2000 Double_t phi,z;
ae00569a 2001 if (!track->GetPhiZat(r,phi,z)) return kFALSE;
67c1e979 2002
67c1e979 2003 Int_t idet=layer.FindDetectorIndex(phi,z);
6518a6c5 2004
2005 // check if we allow a prolongation without point for large-eta tracks
ae00569a 2006 Int_t skip = CheckSkipLayer(track,ilayer,idet);
6518a6c5 2007 if (skip==2) {
2008 // propagate to the layer radius
ae00569a 2009 Double_t xToGo; track->GetLocalXat(r,xToGo);
2010 track->AliExternalTrackParam::PropagateTo(xToGo,GetBz());
6518a6c5 2011 // apply correction for material of the current layer
ae00569a 2012 CorrectForLayerMaterial(track,ilayer,oldGlobXYZ,dir);
2013 modstatus = 4; // out in z
2014 LocalModuleCoord(ilayer,idet,track,xloc,zloc); // local module coords
2015 track->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
6518a6c5 2016 // track time update [SR, GSI 17.02.2003]
ae00569a 2017 if (track->IsStartedTimeIntegral() && step==1) {
6518a6c5 2018 Double_t newX, newY, newZ;
ae00569a 2019 track->GetGlobalXYZat(track->GetX(),newX,newY,newZ);
6518a6c5 2020 Double_t dL2 = (oldX-newX)*(oldX-newX) + (oldY-newY)*(oldY-newY) +
2021 (oldZ-newZ)*(oldZ-newZ);
ae00569a 2022 track->AddTimeStep(TMath::Sqrt(dL2));
6518a6c5 2023 }
2024 continue;
2025 }
2026
e50912db 2027 if (idet<0) return kFALSE;
ae00569a 2028
67c1e979 2029 const AliITSdetector &det=layer.GetDetector(idet);
2030 phi=det.GetPhi();
ae00569a 2031 if (!track->Propagate(phi,det.GetR())) return kFALSE;
2032 track->SetDetectorIndex(idet);
2033 LocalModuleCoord(ilayer,idet,track,xloc,zloc); // local module coords
67c1e979 2034
ae00569a 2035 Double_t dz,zmin,zmax;
2036
2037 const AliITSRecPoint *clAcc=0;
44347160 2038 Double_t maxchi2=1000.*AliITSReconstructor::GetRecoParam()->GetMaxChi2();
67c1e979 2039
6518a6c5 2040 Int_t idx=index[ilayer];
ae00569a 2041 if (idx>=0) { // cluster in this layer
2042 modstatus = 6; // no refit
2043 const AliITSRecPoint *cl=(AliITSRecPoint *)GetCluster(idx);
2044 if (cl) {
2045 if (idet != cl->GetDetectorIndex()) {
2046 idet=cl->GetDetectorIndex();
2047 const AliITSdetector &det=layer.GetDetector(idet);
2048 if (!track->Propagate(det.GetPhi(),det.GetR())) return kFALSE;
2049 track->SetDetectorIndex(idet);
2050 LocalModuleCoord(ilayer,idet,track,xloc,zloc); // local module coords
2051 }
2052 //Double_t chi2=track->GetPredictedChi2(cl);
2053 Int_t cllayer = (idx & 0xf0000000) >> 28;;
2054 Double_t chi2=GetPredictedChi2MI(track,cl,cllayer);
2055 if (chi2<maxchi2) {
2056 clAcc=cl;
2057 maxchi2=chi2;
2058 modstatus = 1; // found
2059 } else {
7167ae53 2060 return kFALSE; //
ae00569a 2061 }
2062 }
2063 } else { // no cluster in this layer
2064 if (skip==1) {
2065 modstatus = 3; // skipped
8a32c4b5 2066 // Plane Eff determination:
2067 if (planeeff && AliITSReconstructor::GetRecoParam()->GetLayersToSkip(ilayer)) {
7167ae53 2068 if (IsOKForPlaneEff(track,ilayer)) // only adequate track for plane eff. evaluation
2069 UseTrackForPlaneEff(track,ilayer);
2070 }
ae00569a 2071 } else {
2072 modstatus = 5; // no cls in road
2073 // check dead
2074 dz=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadZ()*
2075 TMath::Sqrt(track->GetSigmaZ2() +
2076 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
2077 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
2078 AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer));
2079 zmin=track->GetZ() - dz;
2080 zmax=track->GetZ() + dz;
2081 Int_t dead = CheckDeadZone(ilayer,idet,zmin,zmax);
2082 if (dead==1) modstatus = 7; // holes in z in SPD
2083 if (dead==2) modstatus = 2; // dead from OCDB
2084 }
e43c066c 2085 }
ae00569a 2086
2087 if (clAcc) {
2088 if (!UpdateMI(track,clAcc,maxchi2,idx)) return kFALSE;
2089 track->SetSampledEdx(clAcc->GetQ(),track->GetNumberOfClusters()-1);
e43c066c 2090 }
ae00569a 2091 track->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
2092
2093
2094 if (extra) { // search for extra clusters in overlapped modules
2095 AliITStrackV2 tmp(*track);
2096 Double_t dy,ymin,ymax;
2097 dz=4*TMath::Sqrt(tmp.GetSigmaZ2()+AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer));
2098 if (dz < 0.5*TMath::Abs(tmp.GetTgl())) dz=0.5*TMath::Abs(tmp.GetTgl());
2099 dy=4*TMath::Sqrt(track->GetSigmaY2()+AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer));
2100 if (dy < 0.5*TMath::Abs(tmp.GetSnp())) dy=0.5*TMath::Abs(tmp.GetSnp());
2101 zmin=track->GetZ() - dz;
2102 zmax=track->GetZ() + dz;
2103 ymin=track->GetY() + phi*r - dy;
2104 ymax=track->GetY() + phi*r + dy;
2105 layer.SelectClusters(zmin,zmax,ymin,ymax);
2106
2107 const AliITSRecPoint *clExtra=0; Int_t ci=-1,cci=-1;
2108 Int_t idetExtra=-1;
2109 Double_t maxchi2=1000.*AliITSReconstructor::GetRecoParam()->GetMaxChi2(), tolerance=0.1;
2110 while ((clExtra=layer.GetNextCluster(ci))!=0) {
2111 // only clusters in another module! (overlaps)
2112 idetExtra = clExtra->GetDetectorIndex();
2113 if (idet == idetExtra) continue;
2114
2115 const AliITSdetector &det=layer.GetDetector(idetExtra);
2116
2117 if (!tmp.Propagate(det.GetPhi(),det.GetR())) continue;
2118
2119 if (TMath::Abs(tmp.GetZ() - clExtra->GetZ()) > tolerance) continue;
2120 if (TMath::Abs(tmp.GetY() - clExtra->GetY()) > tolerance) continue;
2121
2122 Double_t chi2=tmp.GetPredictedChi2(clExtra);
2123 if (chi2<maxchi2) { maxchi2=chi2; cci=ci; }
2124 }
2125 if (cci>=0) {
2126 track->SetExtraCluster(ilayer,(ilayer<<28)+cci);
2127 track->SetExtraModule(ilayer,idetExtra);
2128 }
2129 } // end search for extra clusters in overlapped modules
2130
afd25725 2131 // Correct for material of the current layer
ae00569a 2132 if(!CorrectForLayerMaterial(track,ilayer,oldGlobXYZ,dir)) return kFALSE;
e43c066c 2133
2134 // track time update [SR, GSI 17.02.2003]
ae00569a 2135 if (track->IsStartedTimeIntegral() && step==1) {
e43c066c 2136 Double_t newX, newY, newZ;
ae00569a 2137 track->GetGlobalXYZat(track->GetX(),newX,newY,newZ);
e43c066c 2138 Double_t dL2 = (oldX-newX)*(oldX-newX) + (oldY-newY)*(oldY-newY) +
2139 (oldZ-newZ)*(oldZ-newZ);
ae00569a 2140 track->AddTimeStep(TMath::Sqrt(dL2));
e43c066c 2141 }
2142 //
2143
ae00569a 2144 } // end loop on layers
2145
2146 if (!track->PropagateTo(xx,0.,0.)) return kFALSE;
e43c066c 2147
e43c066c 2148 return kTRUE;
2149}
44347160 2150//------------------------------------------------------------------------
15dd636f 2151Double_t AliITStrackerMI::GetNormalizedChi2(AliITStrackMI * track, Int_t mode)
e43c066c 2152{
2153 //
2154 // calculate normalized chi2
2155 // return NormalizedChi2(track,0);
2156 Float_t chi2 = 0;
2157 Float_t sum=0;
2158 Float_t *erry = GetErrY(fCurrentEsdTrack), *errz = GetErrZ(fCurrentEsdTrack);
2159 // track->fdEdxMismatch=0;
2160 Float_t dedxmismatch =0;
2161 Float_t *ny = GetNy(fCurrentEsdTrack), *nz = GetNz(fCurrentEsdTrack);
2162 if (mode<100){
2163 for (Int_t i = 0;i<6;i++){
b9671574 2164 if (track->GetClIndex(i)>0){
e43c066c 2165 Float_t cerry, cerrz;
2166 if (ny[i]>0) {cerry = erry[i]; cerrz=errz[i];}
2167 else
b9671574 2168 { cerry= track->GetSigmaY(i); cerrz = track->GetSigmaZ(i);}
e43c066c 2169 cerry*=cerry;
2170 cerrz*=cerrz;
b9671574 2171 Float_t cchi2 = (track->GetDy(i)*track->GetDy(i)/cerry)+(track->GetDz(i)*track->GetDz(i)/cerrz);
572f41f9 2172 if (i>1 && AliITSReconstructor::GetRecoParam()->GetUseAmplitudeInfo(i)) {
b9671574 2173 Float_t ratio = track->GetNormQ(i)/track->GetExpQ();
e43c066c 2174 if (ratio<0.5) {
2175 cchi2+=(0.5-ratio)*10.;
2176 //track->fdEdxMismatch+=(0.5-ratio)*10.;
2177 dedxmismatch+=(0.5-ratio)*10.;
2178 }
2179 }
2180 if (i<2 ||i>3){
b9671574 2181 AliITSRecPoint * cl = (AliITSRecPoint*)GetCluster( track->GetClIndex(i));
e43c066c 2182 Double_t delta = cl->GetNy()+cl->GetNz()-ny[i]-nz[i];
2183 if (delta>1) chi2 +=0.5*TMath::Min(delta/2,2.);
2184 if (i<2) chi2+=2*cl->GetDeltaProbability();
2185 }
2186 chi2+=cchi2;
2187 sum++;
2188 }
2189 }
b9671574 2190 if (TMath::Abs(track->GetdEdxMismatch()-dedxmismatch)>0.0001){
2191 track->SetdEdxMismatch(dedxmismatch);
e43c066c 2192 }
2193 }
2194 else{
2195 for (Int_t i = 0;i<4;i++){
b9671574 2196 if (track->GetClIndex(i)>0){
e43c066c 2197 Float_t cerry, cerrz;
2198 if (ny[i]>0) {cerry = erry[i]; cerrz=errz[i];}
b9671574 2199 else { cerry= track->GetSigmaY(i); cerrz = track->GetSigmaZ(i);}
e43c066c 2200 cerry*=cerry;
2201 cerrz*=cerrz;
b9671574 2202 chi2+= (track->GetDy(i)*track->GetDy(i)/cerry);
2203 chi2+= (track->GetDz(i)*track->GetDz(i)/cerrz);
e43c066c 2204 sum++;
2205 }
2206 }
2207 for (Int_t i = 4;i<6;i++){
b9671574 2208 if (track->GetClIndex(i)>0){
e43c066c 2209 Float_t cerry, cerrz;
2210 if (ny[i]>0) {cerry = erry[i]; cerrz=errz[i];}
b9671574 2211 else { cerry= track->GetSigmaY(i); cerrz = track->GetSigmaZ(i);}
e43c066c 2212 cerry*=cerry;
2213 cerrz*=cerrz;
2214 Float_t cerryb, cerrzb;
2215 if (ny[i+6]>0) {cerryb = erry[i+6]; cerrzb=errz[i+6];}
b9671574 2216 else { cerryb= track->GetSigmaY(i+6); cerrzb = track->GetSigmaZ(i+6);}
e43c066c 2217 cerryb*=cerryb;
2218 cerrzb*=cerrzb;
b9671574 2219 chi2+= TMath::Min((track->GetDy(i+6)*track->GetDy(i+6)/cerryb),track->GetDy(i)*track->GetDy(i)/cerry);
2220 chi2+= TMath::Min((track->GetDz(i+6)*track->GetDz(i+6)/cerrzb),track->GetDz(i)*track->GetDz(i)/cerrz);
e43c066c 2221 sum++;
2222 }
2223 }
2224 }
b9671574 2225 if (track->GetESDtrack()->GetTPCsignal()>85){
2226 Float_t ratio = track->GetdEdx()/track->GetESDtrack()->GetTPCsignal();
e43c066c 2227 if (ratio<0.5) {
2228 chi2+=(0.5-ratio)*5.;
2229 }
2230 if (ratio>2){
2231 chi2+=(ratio-2.0)*3;
2232 }
2233 }
2234 //
b9671574 2235 Double_t match = TMath::Sqrt(track->GetChi22());
2236 if (track->GetConstrain()) match/=track->GetNumberOfClusters();
2755f080 2237 if (!track->GetConstrain()) {
2238 if (track->GetNumberOfClusters()>2) {
2239 match/=track->GetNumberOfClusters()-2.;
2240 } else {
2241 match=0;
2242 }
2243 }
e43c066c 2244 if (match<0) match=0;
b9671574 2245 Float_t deadzonefactor = (track->GetNDeadZone()>0) ? 3*(1.1-track->GetDeadZoneProbability()):0.;
2246 Double_t normchi2 = 2*track->GetNSkipped()+match+deadzonefactor+(1+(2*track->GetNSkipped()+deadzonefactor)/track->GetNumberOfClusters())*
2247 (chi2)/TMath::Max(double(sum-track->GetNSkipped()),
2248 1./(1.+track->GetNSkipped()));
e43c066c 2249
2250 return normchi2;
2251}
44347160 2252//------------------------------------------------------------------------
15dd636f 2253Double_t AliITStrackerMI::GetMatchingChi2(AliITStrackMI * track1, AliITStrackMI * track2)
e43c066c 2254{
2255 //
2256 // return matching chi2 between two tracks
15dd636f 2257 AliITStrackMI track3(*track2);
e43c066c 2258 track3.Propagate(track1->GetAlpha(),track1->GetX());
2259 TMatrixD vec(5,1);
6c94f330 2260 vec(0,0)=track1->GetY() - track3.GetY();
2261 vec(1,0)=track1->GetZ() - track3.GetZ();
2262 vec(2,0)=track1->GetSnp() - track3.GetSnp();
2263 vec(3,0)=track1->GetTgl() - track3.GetTgl();
6c23ffed 2264 vec(4,0)=track1->GetSigned1Pt() - track3.GetSigned1Pt();
e43c066c 2265 //
2266 TMatrixD cov(5,5);
6c94f330 2267 cov(0,0) = track1->GetSigmaY2()+track3.GetSigmaY2();
2268 cov(1,1) = track1->GetSigmaZ2()+track3.GetSigmaZ2();
2269 cov(2,2) = track1->GetSigmaSnp2()+track3.GetSigmaSnp2();
2270 cov(3,3) = track1->GetSigmaTgl2()+track3.GetSigmaTgl2();
2271 cov(4,4) = track1->GetSigma1Pt2()+track3.GetSigma1Pt2();
e43c066c 2272
6c94f330 2273 cov(0,1)=cov(1,0) = track1->GetSigmaZY()+track3.GetSigmaZY();
2274 cov(0,2)=cov(2,0) = track1->GetSigmaSnpY()+track3.GetSigmaSnpY();
2275 cov(0,3)=cov(3,0) = track1->GetSigmaTglY()+track3.GetSigmaTglY();
2276 cov(0,4)=cov(4,0) = track1->GetSigma1PtY()+track3.GetSigma1PtY();
e43c066c 2277 //
6c94f330 2278 cov(1,2)=cov(2,1) = track1->GetSigmaSnpZ()+track3.GetSigmaSnpZ();
2279 cov(1,3)=cov(3,1) = track1->GetSigmaTglZ()+track3.GetSigmaTglZ();
2280 cov(1,4)=cov(4,1) = track1->GetSigma1PtZ()+track3.GetSigma1PtZ();
e43c066c 2281 //
6c94f330 2282 cov(2,3)=cov(3,2) = track1->GetSigmaTglSnp()+track3.GetSigmaTglSnp();
2283 cov(2,4)=cov(4,2) = track1->GetSigma1PtSnp()+track3.GetSigma1PtSnp();
e43c066c 2284 //
6c94f330 2285 cov(3,4)=cov(4,3) = track1->GetSigma1PtTgl()+track3.GetSigma1PtTgl();
e43c066c 2286
2287 cov.Invert();
2288 TMatrixD vec2(cov,TMatrixD::kMult,vec);
2289 TMatrixD chi2(vec2,TMatrixD::kTransposeMult,vec);
2290 return chi2(0,0);
2291}
44347160 2292//------------------------------------------------------------------------
6518a6c5 2293Double_t AliITStrackerMI::GetSPDDeadZoneProbability(Double_t zpos, Double_t zerr)
e43c066c 2294{
2295 //
afd25725 2296 // return probability that given point (characterized by z position and error)
2297 // is in SPD dead zone
e43c066c 2298 //
afd25725 2299 Double_t probability = 0.;
e43c066c 2300 Double_t absz = TMath::Abs(zpos);
afd25725 2301 Double_t nearestz = (absz<2.) ? 0.5*(fSPDdetzcentre[1]+fSPDdetzcentre[2]) :
2302 0.5*(fSPDdetzcentre[2]+fSPDdetzcentre[3]);
2303 if (TMath::Abs(absz-nearestz)>0.25+3.*zerr) return probability;
2304 Double_t zmin, zmax;
2305 if (zpos<-6.) { // dead zone at z = -7
e50912db 2306 zmin = fSPDdetzcentre[0] + 0.5*AliITSRecoParam::GetSPDdetzlength();
2307 zmax = fSPDdetzcentre[1] - 0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 2308 } else if (zpos>6.) { // dead zone at z = +7
e50912db 2309 zmin = fSPDdetzcentre[2] + 0.5*AliITSRecoParam::GetSPDdetzlength();
2310 zmax = fSPDdetzcentre[3] - 0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 2311 } else if (absz<2.) { // dead zone at z = 0
e50912db 2312 zmin = fSPDdetzcentre[1] + 0.5*AliITSRecoParam::GetSPDdetzlength();
2313 zmax = fSPDdetzcentre[2] - 0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 2314 } else {
2315 zmin = 0.;
2316 zmax = 0.;
e43c066c 2317 }
afd25725 2318 // probability that the true z is in the range [zmin,zmax] (i.e. inside
2319 // dead zone)
2320 probability = 0.5*( TMath::Erf((zpos-zmin)/zerr/TMath::Sqrt(2.)) -
2321 TMath::Erf((zpos-zmax)/zerr/TMath::Sqrt(2.)) );
e43c066c 2322 return probability;
2323}
44347160 2324//------------------------------------------------------------------------
15dd636f 2325Double_t AliITStrackerMI::GetTruncatedChi2(AliITStrackMI * track, Float_t fac)
e43c066c 2326{
2327 //
2328 // calculate normalized chi2
2329 Float_t chi2[6];
2330 Float_t *erry = GetErrY(fCurrentEsdTrack), *errz = GetErrZ(fCurrentEsdTrack);
2331 Float_t ncl = 0;
2332 for (Int_t i = 0;i<6;i++){
b9671574 2333 if (TMath::Abs(track->GetDy(i))>0){
2334 chi2[i]= (track->GetDy(i)/erry[i])*(track->GetDy(i)/erry[i]);
2335 chi2[i]+= (track->GetDz(i)/errz[i])*(track->GetDz(i)/errz[i]);
e43c066c 2336 ncl++;
2337 }
2338 else{chi2[i]=10000;}
2339 }
2340 Int_t index[6];
2341 TMath::Sort(6,chi2,index,kFALSE);
2342 Float_t max = float(ncl)*fac-1.;
2343 Float_t sumchi=0, sumweight=0;
2344 for (Int_t i=0;i<max+1;i++){
2345 Float_t weight = (i<max)?1.:(max+1.-i);
2346 sumchi+=weight*chi2[index[i]];
2347 sumweight+=weight;
2348 }
2349 Double_t normchi2 = sumchi/sumweight;
2350 return normchi2;
2351}
44347160 2352//------------------------------------------------------------------------
15dd636f 2353Double_t AliITStrackerMI::GetInterpolatedChi2(AliITStrackMI * forwardtrack, AliITStrackMI * backtrack)
e43c066c 2354{
2355 //
2356 // calculate normalized chi2
2357 // if (forwardtrack->fNUsed>0.3*float(forwardtrack->GetNumberOfClusters())) return 10000;
2358 Int_t npoints = 0;
2359 Double_t res =0;
2360 for (Int_t i=0;i<6;i++){
b9671574 2361 if ( (backtrack->GetSigmaY(i)<0.000000001) || (forwardtrack->GetSigmaY(i)<0.000000001)) continue;
2362 Double_t sy1 = forwardtrack->GetSigmaY(i);
2363 Double_t sz1 = forwardtrack->GetSigmaZ(i);
2364 Double_t sy2 = backtrack->GetSigmaY(i);
2365 Double_t sz2 = backtrack->GetSigmaZ(i);
e43c066c 2366 if (i<2){ sy2=1000.;sz2=1000;}
2367 //
b9671574 2368 Double_t dy0 = (forwardtrack->GetDy(i)/(sy1*sy1) +backtrack->GetDy(i)/(sy2*sy2))/(1./(sy1*sy1)+1./(sy2*sy2));
2369 Double_t dz0 = (forwardtrack->GetDz(i)/(sz1*sz1) +backtrack->GetDz(i)/(sz2*sz2))/(1./(sz1*sz1)+1./(sz2*sz2));
e43c066c 2370 //
2371 Double_t nz0 = dz0*TMath::Sqrt((1./(sz1*sz1)+1./(sz2*sz2)));
2372 Double_t ny0 = dy0*TMath::Sqrt((1./(sy1*sy1)+1./(sy2*sy2)));
2373 //
2374 res+= nz0*nz0+ny0*ny0;
2375 npoints++;
2376 }
2377 if (npoints>1) return
6c23ffed 2378 TMath::Max(0.3*forwardtrack->OneOverPt()-0.5,0.)+
e43c066c 2379 //2*forwardtrack->fNUsed+
b9671574 2380 res/TMath::Max(double(npoints-forwardtrack->GetNSkipped()),
2381 1./(1.+forwardtrack->GetNSkipped()));
e43c066c 2382 return 1000;
2383}
44347160 2384//------------------------------------------------------------------------
e43c066c 2385Float_t *AliITStrackerMI::GetWeight(Int_t index) {
2386 //--------------------------------------------------------------------
2387 // Return pointer to a given cluster
2388 //--------------------------------------------------------------------
2389 Int_t l=(index & 0xf0000000) >> 28;
2390 Int_t c=(index & 0x0fffffff) >> 00;
2391 return fgLayers[l].GetWeight(c);
2392}
44347160 2393//------------------------------------------------------------------------
15dd636f 2394void AliITStrackerMI::RegisterClusterTracks(AliITStrackMI* track,Int_t id)
e43c066c 2395{
2396 //---------------------------------------------
2397 // register track to the list
628e7bb0 2398 //
b9671574 2399 if (track->GetESDtrack()->GetKinkIndex(0)!=0) return; //don't register kink tracks
628e7bb0 2400 //
2401 //
e43c066c 2402 for (Int_t icluster=0;icluster<track->GetNumberOfClusters();icluster++){
2403 Int_t index = track->GetClusterIndex(icluster);
2404 Int_t l=(index & 0xf0000000) >> 28;
2405 Int_t c=(index & 0x0fffffff) >> 00;
b9671574 2406 if (c>fgLayers[l].GetNumberOfClusters()) continue;
e43c066c 2407 for (Int_t itrack=0;itrack<4;itrack++){
b9671574 2408 if (fgLayers[l].GetClusterTracks(itrack,c)<0){
2409 fgLayers[l].SetClusterTracks(itrack,c,id);
e43c066c 2410 break;
2411 }
2412 }
2413 }
2414}
44347160 2415//------------------------------------------------------------------------
15dd636f 2416void AliITStrackerMI::UnRegisterClusterTracks(AliITStrackMI* track, Int_t id)
e43c066c 2417{
2418 //---------------------------------------------
2419 // unregister track from the list
2420 for (Int_t icluster=0;icluster<track->GetNumberOfClusters();icluster++){
2421 Int_t index = track->GetClusterIndex(icluster);
2422 Int_t l=(index & 0xf0000000) >> 28;
2423 Int_t c=(index & 0x0fffffff) >> 00;
b9671574 2424 if (c>fgLayers[l].GetNumberOfClusters()) continue;
e43c066c 2425 for (Int_t itrack=0;itrack<4;itrack++){
b9671574 2426 if (fgLayers[l].GetClusterTracks(itrack,c)==id){
2427 fgLayers[l].SetClusterTracks(itrack,c,-1);
e43c066c 2428 }
2429 }
2430 }
2431}
44347160 2432//------------------------------------------------------------------------
00a7cc50 2433Float_t AliITStrackerMI::GetNumberOfSharedClusters(AliITStrackMI* track,Int_t id, Int_t list[6], AliITSRecPoint *clist[6])
e43c066c 2434{
2435 //-------------------------------------------------------------
2436 //get number of shared clusters
2437 //-------------------------------------------------------------
2438 Float_t shared=0;
2439 for (Int_t i=0;i<6;i++) { list[i]=-1, clist[i]=0;}
2440 // mean number of clusters
2441 Float_t *ny = GetNy(id), *nz = GetNz(id);
2442
2443
2444 for (Int_t icluster=0;icluster<track->GetNumberOfClusters();icluster++){
2445 Int_t index = track->GetClusterIndex(icluster);
2446 Int_t l=(index & 0xf0000000) >> 28;
2447 Int_t c=(index & 0x0fffffff) >> 00;
b9671574 2448 if (c>fgLayers[l].GetNumberOfClusters()) continue;
e43c066c 2449 if (ny[l]==0){
2450 printf("problem\n");
2451 }
00a7cc50 2452 AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(index);
e43c066c 2453 Float_t weight=1;
2454 //
2455 Float_t deltan = 0;
2456 if (l>3&&cl->GetNy()+cl->GetNz()>6) continue;
572f41f9 2457 if (l>2&&AliITSReconstructor::GetRecoParam()->GetUseAmplitudeInfo(l))
2458 if (track->GetNormQ(l)/track->GetExpQ()>3.5) continue;
e43c066c 2459 if (l<2 || l>3){
2460 deltan = (cl->GetNy()+cl->GetNz()-ny[l]-nz[l]);
2461 }
2462 else{
2463 deltan = (cl->GetNz()-nz[l]);
2464 }
2465 if (deltan>2.0) continue; // extended - highly probable shared cluster
2466 weight = 2./TMath::Max(3.+deltan,2.);
2467 //
2468 for (Int_t itrack=0;itrack<4;itrack++){
b9671574 2469 if (fgLayers[l].GetClusterTracks(itrack,c)>=0 && fgLayers[l].GetClusterTracks(itrack,c)!=id){
e43c066c 2470 list[l]=index;
00a7cc50 2471 clist[l] = (AliITSRecPoint*)GetCluster(index);
e43c066c 2472 shared+=weight;
2473 break;
2474 }
2475 }
2476 }
b9671574 2477 track->SetNUsed(shared);
e43c066c 2478 return shared;
2479}
44347160 2480//------------------------------------------------------------------------
15dd636f 2481Int_t AliITStrackerMI::GetOverlapTrack(AliITStrackMI *track, Int_t trackID, Int_t &shared, Int_t clusterlist[6],Int_t overlist[6])
e43c066c 2482{
2483 //
2484 // find first shared track
2485 //
2486 // mean number of clusters
2487 Float_t *ny = GetNy(trackID), *nz = GetNz(trackID);
2488 //
2489 for (Int_t i=0;i<6;i++) overlist[i]=-1;
2490 Int_t sharedtrack=100000;
2491 Int_t tracks[24],trackindex=0;
2492 for (Int_t i=0;i<24;i++) {tracks[i]=-1;}
2493 //
2494 for (Int_t icluster=0;icluster<6;icluster++){
2495 if (clusterlist[icluster]<0) continue;
2496 Int_t index = clusterlist[icluster];
2497 Int_t l=(index & 0xf0000000) >> 28;
2498 Int_t c=(index & 0x0fffffff) >> 00;
2499 if (ny[l]==0){
2500 printf("problem\n");
2501 }
b9671574 2502 if (c>fgLayers[l].GetNumberOfClusters()) continue;
e43c066c 2503 //if (l>3) continue;
00a7cc50 2504 AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(index);
e43c066c 2505 //
2506 Float_t deltan = 0;
2507 if (l>3&&cl->GetNy()+cl->GetNz()>6) continue;
572f41f9 2508 if (l>2&&AliITSReconstructor::GetRecoParam()->GetUseAmplitudeInfo(l))
2509 if (track->GetNormQ(l)/track->GetExpQ()>3.5) continue;
e43c066c 2510 if (l<2 || l>3){
2511 deltan = (cl->GetNy()+cl->GetNz()-ny[l]-nz[l]);
2512 }
2513 else{
2514 deltan = (cl->GetNz()-nz[l]);
2515 }
2516 if (deltan>2.0) continue; // extended - highly probable shared cluster
2517 //
2518 for (Int_t itrack=3;itrack>=0;itrack--){
b9671574 2519 if (fgLayers[l].GetClusterTracks(itrack,c)<0) continue;
2520 if (fgLayers[l].GetClusterTracks(itrack,c)!=trackID){
2521 tracks[trackindex] = fgLayers[l].GetClusterTracks(itrack,c);
e43c066c 2522 trackindex++;
2523 }
2524 }
2525 }
2526 if (trackindex==0) return -1;
2527 if (trackindex==1){
2528 sharedtrack = tracks[0];
2529 }else{
2530 if (trackindex==2) sharedtrack =TMath::Min(tracks[0],tracks[1]);
2531 else{
2532 //
2533 Int_t track[24], cluster[24];
2534 for (Int_t i=0;i<trackindex;i++){ track[i]=-1; cluster[i]=0;}
2535 Int_t index =0;
2536 //
2537 for (Int_t i=0;i<trackindex;i++){
2538 if (tracks[i]<0) continue;
2539 track[index] = tracks[i];
2540 cluster[index]++;
2541 for (Int_t j=i+1;j<trackindex;j++){
2542 if (tracks[j]<0) continue;
2543 if (tracks[j]==tracks[i]){
2544 cluster[index]++;
2545 tracks[j]=-1;
2546 }
2547 }
2548 index++;
2549 }
2550 Int_t max=0;
2551 for (Int_t i=0;i<index;i++){
2552 if (cluster[index]>max) {
2553 sharedtrack=track[index];
2554 max=cluster[index];
2555 }
2556 }
2557 }
2558 }
2559
2560 if (sharedtrack>=100000) return -1;
2561 //
2562 // make list of overlaps
2563 shared =0;
2564 for (Int_t icluster=0;icluster<6;icluster++){
2565 if (clusterlist[icluster]<0) continue;
2566 Int_t index = clusterlist[icluster];
2567 Int_t l=(index & 0xf0000000) >> 28;
2568 Int_t c=(index & 0x0fffffff) >> 00;
b9671574 2569 if (c>fgLayers[l].GetNumberOfClusters()) continue;
00a7cc50 2570 AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(index);
e43c066c 2571 if (l==0 || l==1){
2572 if (cl->GetNy()>2) continue;
2573 if (cl->GetNz()>2) continue;
2574 }
2575 if (l==4 || l==5){
2576 if (cl->GetNy()>3) continue;
2577 if (cl->GetNz()>3) continue;
2578 }
2579 //
2580 for (Int_t itrack=3;itrack>=0;itrack--){
b9671574 2581 if (fgLayers[l].GetClusterTracks(itrack,c)<0) continue;
2582 if (fgLayers[l].GetClusterTracks(itrack,c)==sharedtrack){
e43c066c 2583 overlist[l]=index;
2584 shared++;
2585 }
2586 }
2587 }
2588 return sharedtrack;
2589}
44347160 2590//------------------------------------------------------------------------
15dd636f 2591AliITStrackMI * AliITStrackerMI::GetBest2Tracks(Int_t trackID1, Int_t trackID2, Float_t th0, Float_t th1){
e43c066c 2592 //
2593 // try to find track hypothesys without conflicts
2594 // with minimal chi2;
2595 TClonesArray *arr1 = (TClonesArray*)fTrackHypothesys.At(trackID1);
2596 Int_t entries1 = arr1->GetEntriesFast();
2597 TClonesArray *arr2 = (TClonesArray*)fTrackHypothesys.At(trackID2);
15dd636f 2598 if (!arr2) return (AliITStrackMI*) arr1->UncheckedAt(0);
e43c066c 2599 Int_t entries2 = arr2->GetEntriesFast();
15dd636f 2600 if (entries2<=0) return (AliITStrackMI*) arr1->UncheckedAt(0);
e43c066c 2601 //
15dd636f 2602 AliITStrackMI * track10=(AliITStrackMI*) arr1->UncheckedAt(0);
2603 AliITStrackMI * track20=(AliITStrackMI*) arr2->UncheckedAt(0);
6c23ffed 2604 if (track10->Pt()>0.5+track20->Pt()) return track10;
e43c066c 2605
2606 for (Int_t itrack=0;itrack<entries1;itrack++){
15dd636f 2607 AliITStrackMI * track=(AliITStrackMI*) arr1->UncheckedAt(itrack);
e43c066c 2608 UnRegisterClusterTracks(track,trackID1);
2609 }
2610 //
2611 for (Int_t itrack=0;itrack<entries2;itrack++){
15dd636f 2612 AliITStrackMI * track=(AliITStrackMI*) arr2->UncheckedAt(itrack);
e43c066c 2613 UnRegisterClusterTracks(track,trackID2);
2614 }
2615 Int_t index1=0;
2616 Int_t index2=0;
2617 Float_t maxconflicts=6;
2618 Double_t maxchi2 =1000.;
2619 //
2620 // get weight of hypothesys - using best hypothesy
2621 Double_t w1,w2;
2622
2623 Int_t list1[6],list2[6];
00a7cc50 2624 AliITSRecPoint *clist1[6], *clist2[6] ;
e43c066c 2625 RegisterClusterTracks(track10,trackID1);
2626 RegisterClusterTracks(track20,trackID2);
2627 Float_t conflict1 = GetNumberOfSharedClusters(track10,trackID1,list1,clist1);
2628 Float_t conflict2 = GetNumberOfSharedClusters(track20,trackID2,list2,clist2);
2629 UnRegisterClusterTracks(track10,trackID1);
2630 UnRegisterClusterTracks(track20,trackID2);
2631 //
2632 // normalized chi2
2633 Float_t chi21 =0,chi22=0,ncl1=0,ncl2=0;
2634 Float_t nerry[6],nerrz[6];
2635 Float_t *erry1=GetErrY(trackID1),*errz1 = GetErrZ(trackID1);
2636 Float_t *erry2=GetErrY(trackID2),*errz2 = GetErrZ(trackID2);
2637 for (Int_t i=0;i<6;i++){
2638 if ( (erry1[i]>0) && (erry2[i]>0)) {
2639 nerry[i] = TMath::Min(erry1[i],erry2[i]);
2640 nerrz[i] = TMath::Min(errz1[i],errz2[i]);
2641 }else{
2642 nerry[i] = TMath::Max(erry1[i],erry2[i]);
2643 nerrz[i] = TMath::Max(errz1[i],errz2[i]);
2644 }
b9671574 2645 if (TMath::Abs(track10->GetDy(i))>0.000000000000001){
2646 chi21 += track10->GetDy(i)*track10->GetDy(i)/(nerry[i]*nerry[i]);
2647 chi21 += track10->GetDz(i)*track10->GetDz(i)/(nerrz[i]*nerrz[i]);
e43c066c 2648 ncl1++;
2649 }
b9671574 2650 if (TMath::Abs(track20->GetDy(i))>0.000000000000001){
2651 chi22 += track20->GetDy(i)*track20->GetDy(i)/(nerry[i]*nerry[i]);
2652 chi22 += track20->GetDz(i)*track20->GetDz(i)/(nerrz[i]*nerrz[i]);
e43c066c 2653 ncl2++;
2654 }
2655 }
2656 chi21/=ncl1;
2657 chi22/=ncl2;
2658 //
2659 //
b9671574 2660 Float_t d1 = TMath::Sqrt(track10->GetD(0)*track10->GetD(0)+track10->GetD(1)*track10->GetD(1))+0.1;
2661 Float_t d2 = TMath::Sqrt(track20->GetD(0)*track20->GetD(0)+track20->GetD(1)*track20->GetD(1))+0.1;
e43c066c 2662 Float_t s1 = TMath::Sqrt(track10->GetSigmaY2()*track10->GetSigmaZ2());
2663 Float_t s2 = TMath::Sqrt(track20->GetSigmaY2()*track20->GetSigmaZ2());
2664 //
2665 w1 = (d2/(d1+d2)+ 2*s2/(s1+s2)+
2666 +s2/(s1+s2)*0.5*(chi22+2.)/(chi21+chi22+4.)
6c23ffed 2667 +1.*track10->Pt()/(track10->Pt()+track20->Pt())
e43c066c 2668 );
2669 w2 = (d1/(d1+d2)+ 2*s1/(s1+s2)+
2670 s1/(s1+s2)*0.5*(chi21+2.)/(chi21+chi22+4.)
6c23ffed 2671 +1.*track20->Pt()/(track10->Pt()+track20->Pt())
e43c066c 2672 );
2673
2674 Double_t sumw = w1+w2;
2675 w1/=sumw;
2676 w2/=sumw;
2677 if (w1<w2*0.5) {
2678 w1 = (d2+0.5)/(d1+d2+1.);
2679 w2 = (d1+0.5)/(d1+d2+1.);
2680 }
2681 // Float_t maxmax = w1*track10->fChi2MIP[0]+w2*track20->fChi2MIP[0]+w1*conflict1+w2*conflict2+1.;
2682 //Float_t maxconflicts0 = w1*conflict1+w2*conflict2;
2683 //
2684 // get pair of "best" hypothesys
2685 //
2686 Float_t * ny1 = GetNy(trackID1), * nz1 = GetNz(trackID1);
2687 Float_t * ny2 = GetNy(trackID2), * nz2 = GetNz(trackID2);
2688
2689 for (Int_t itrack1=0;itrack1<entries1;itrack1++){
15dd636f 2690 AliITStrackMI * track1=(AliITStrackMI*) arr1->UncheckedAt(itrack1);
e43c066c 2691 //if (track1->fFakeRatio>0) continue;
2692 RegisterClusterTracks(track1,trackID1);
2693 for (Int_t itrack2=0;itrack2<entries2;itrack2++){
15dd636f 2694 AliITStrackMI * track2=(AliITStrackMI*) arr2->UncheckedAt(itrack2);
e43c066c 2695
2696 // Float_t current = w1*track1->fChi2MIP[0]+w2*track2->fChi2MIP[0];
2697 //if (track2->fFakeRatio>0) continue;
2698 Float_t nskipped=0;
2699 RegisterClusterTracks(track2,trackID2);
2700 Int_t list1[6],list2[6];
00a7cc50 2701 AliITSRecPoint *clist1[6], *clist2[6] ;
e43c066c 2702 Float_t cconflict1 = GetNumberOfSharedClusters(track1,trackID1,list1,clist1);
2703 Float_t cconflict2 = GetNumberOfSharedClusters(track2,trackID2,list2,clist2);
2704 UnRegisterClusterTracks(track2,trackID2);
2705 //
b9671574 2706 if (track1->GetConstrain()) nskipped+=w1*track1->GetNSkipped();
2707 if (track2->GetConstrain()) nskipped+=w2*track2->GetNSkipped();
e43c066c 2708 if (nskipped>0.5) continue;
2709 //
2710 //if ( w1*conflict1+w2*conflict2>maxconflicts0) continue;
2711 if (conflict1+1<cconflict1) continue;
2712 if (conflict2+1<cconflict2) continue;
2713 Float_t conflict=0;
2714 Float_t sumchi2=0;
2715 Float_t sum=0;
2716 for (Int_t i=0;i<6;i++){
2717 //
2718 Float_t c1 =0.; // conflict coeficients
2719 Float_t c2 =0.;
2720 if (clist1[i]&&clist2[i]){
2721 Float_t deltan = 0;
2722 if (i<2 || i>3){
2723 deltan = (clist1[i]->GetNy()+clist1[i]->GetNz()-TMath::Max(ny1[i],ny2[i])-TMath::Max(nz1[i],nz2[i]));
2724 }
2725 else{
2726 deltan = (clist1[i]->GetNz()-TMath::Max(nz1[i],nz2[i]));
2727 }
2728 c1 = 2./TMath::Max(3.+deltan,2.);
2729 c2 = 2./TMath::Max(3.+deltan,2.);
2730 }
2731 else{
2732 if (clist1[i]){
2733 Float_t deltan = 0;
2734 if (i<2 || i>3){
2735 deltan = (clist1[i]->GetNy()+clist1[i]->GetNz()-ny1[i]-nz1[i]);
2736 }
2737 else{
2738 deltan = (clist1[i]->GetNz()-nz1[i]);
2739 }
2740 c1 = 2./TMath::Max(3.+deltan,2.);
2741 c2 = 0;
2742 }
2743
2744 if (clist2[i]){
2745 Float_t deltan = 0;
2746 if (i<2 || i>3){
2747 deltan = (clist2[i]->GetNy()+clist2[i]->GetNz()-ny2[i]-nz2[i]);
2748 }
2749 else{
2750 deltan = (clist2[i]->GetNz()-nz2[i]);
2751 }
2752 c2 = 2./TMath::Max(3.+deltan,2.);
2753 c1 = 0;
2754 }
2755 }
2756 //
2757 Double_t chi21=0,chi22=0;
b9671574 2758 if (TMath::Abs(track1->GetDy(i))>0.) {
2759 chi21 = (track1->GetDy(i)/track1->GetSigmaY(i))*(track1->GetDy(i)/track1->GetSigmaY(i))+
2760 (track1->GetDz(i)/track1->GetSigmaZ(i))*(track1->GetDz(i)/track1->GetSigmaZ(i));
e43c066c 2761 //chi21 = (track1->fDy[i]*track1->fDy[i])/(nerry[i]*nerry[i])+
b9671574 2762 // (track1->GetDz(i)*track1->GetDz(i))/(nerrz[i]*nerrz[i]);
e43c066c 2763 }else{
b9671574 2764 if (TMath::Abs(track1->GetSigmaY(i)>0.)) c1=1;
e43c066c 2765 }
2766 //
b9671574 2767 if (TMath::Abs(track2->GetDy(i))>0.) {
2768 chi22 = (track2->GetDy(i)/track2->GetSigmaY(i))*(track2->GetDy(i)/track2->GetSigmaY(i))+
2769 (track2->GetDz(i)/track2->GetSigmaZ(i))*(track2->GetDz(i)/track2->GetSigmaZ(i));
e43c066c 2770 //chi22 = (track2->fDy[i]*track2->fDy[i])/(nerry[i]*nerry[i])+
2771 // (track2->fDz[i]*track2->fDz[i])/(nerrz[i]*nerrz[i]);
2772 }
2773 else{
b9671574 2774 if (TMath::Abs(track2->GetSigmaY(i)>0.)) c2=1;
e43c066c 2775 }
2776 sumchi2+=w1*(1.+c1)*(1+c1)*(chi21+c1)+w2*(1.+c2)*(1+c2)*(chi22+c2);
2777 if (chi21>0) sum+=w1;
2778 if (chi22>0) sum+=w2;
2779 conflict+=(c1+c2);
2780 }
b9671574 2781 Double_t norm = sum-w1*track1->GetNSkipped()-w2*track2->GetNSkipped();
2782 if (norm<0) norm =1/(w1*track1->GetNSkipped()+w2*track2->GetNSkipped());
e43c066c 2783 Double_t normchi2 = 2*conflict+sumchi2/sum;
2784 if ( normchi2 <maxchi2 ){
2785 index1 = itrack1;
2786 index2 = itrack2;
2787 maxconflicts = conflict;
2788 maxchi2 = normchi2;
2789 }
2790 }
2791 UnRegisterClusterTracks(track1,trackID1);
2792 }
2793 //
2794 // if (maxconflicts<4 && maxchi2<th0){
2795 if (maxchi2<th0*2.){
b9671574 2796 Float_t orig = track10->GetFakeRatio()*track10->GetNumberOfClusters();
15dd636f 2797 AliITStrackMI* track1=(AliITStrackMI*) arr1->UncheckedAt(index1);
b9671574 2798 track1->SetChi2MIP(5,maxconflicts);
2799 track1->SetChi2MIP(6,maxchi2);
2800 track1->SetChi2MIP(7,0.01+orig-(track1->GetFakeRatio()*track1->GetNumberOfClusters()));
e43c066c 2801 // track1->UpdateESDtrack(AliESDtrack::kITSin);
b9671574 2802 track1->SetChi2MIP(8,index1);
e43c066c 2803 fBestTrackIndex[trackID1] =index1;
2804 UpdateESDtrack(track1, AliESDtrack::kITSin);
2805 }
b9671574 2806 else if (track10->GetChi2MIP(0)<th1){
2807 track10->SetChi2MIP(5,maxconflicts);
2808 track10->SetChi2MIP(6,maxchi2);
e43c066c 2809 // track10->UpdateESDtrack(AliESDtrack::kITSin);
2810 UpdateESDtrack(track10,AliESDtrack::kITSin);
2811 }
2812
2813 for (Int_t itrack=0;itrack<entries1;itrack++){
15dd636f 2814 AliITStrackMI * track=(AliITStrackMI*) arr1->UncheckedAt(itrack);
e43c066c 2815 UnRegisterClusterTracks(track,trackID1);
2816 }
2817 //
2818 for (Int_t itrack=0;itrack<entries2;itrack++){
15dd636f 2819 AliITStrackMI * track=(AliITStrackMI*) arr2->UncheckedAt(itrack);
e43c066c 2820 UnRegisterClusterTracks(track,trackID2);
2821 }
2822
44347160 2823 if (track10->GetConstrain()&&track10->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&track10->GetChi2MIP(1)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)
2824 &&track10->GetChi2MIP(2)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)&&track10->GetChi2MIP(3)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)){
2825 // if (track10->fChi2MIP[0]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&track10->fChi2MIP[1]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)
2826 // &&track10->fChi2MIP[2]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)&&track10->fChi2MIP[3]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)){
e43c066c 2827 RegisterClusterTracks(track10,trackID1);
2828 }
44347160 2829 if (track20->GetConstrain()&&track20->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&track20->GetChi2MIP(1)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)
2830 &&track20->GetChi2MIP(2)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)&&track20->GetChi2MIP(3)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)){
2831 //if (track20->fChi2MIP[0]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&track20->fChi2MIP[1]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)
2832 // &&track20->fChi2MIP[2]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)&&track20->fChi2MIP[3]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)){
e43c066c 2833 RegisterClusterTracks(track20,trackID2);
2834 }
2835 return track10;
2836
2837}
44347160 2838//------------------------------------------------------------------------
e43c066c 2839void AliITStrackerMI::UseClusters(const AliKalmanTrack *t, Int_t from) const {
2840 //--------------------------------------------------------------------
2841 // This function marks clusters assigned to the track
2842 //--------------------------------------------------------------------
2843 AliTracker::UseClusters(t,from);
2844
00a7cc50 2845 AliITSRecPoint *c=(AliITSRecPoint *)GetCluster(t->GetClusterIndex(0));
e43c066c 2846 //if (c->GetQ()>2) c->Use();
2847 if (c->GetSigmaZ2()>0.1) c->Use();
00a7cc50 2848 c=(AliITSRecPoint *)GetCluster(t->GetClusterIndex(1));
e43c066c 2849 //if (c->GetQ()>2) c->Use();
2850 if (c->GetSigmaZ2()>0.1) c->Use();
2851
2852}
44347160 2853//------------------------------------------------------------------------
15dd636f 2854void AliITStrackerMI::AddTrackHypothesys(AliITStrackMI * track, Int_t esdindex)
e43c066c 2855{
2856 //------------------------------------------------------------------
2857 // add track to the list of hypothesys
2858 //------------------------------------------------------------------
2859
2860 if (esdindex>=fTrackHypothesys.GetEntriesFast()) fTrackHypothesys.Expand(esdindex*2+10);
2861 //
2862 TObjArray * array = (TObjArray*) fTrackHypothesys.At(esdindex);
2863 if (!array) {
2864 array = new TObjArray(10);
2865 fTrackHypothesys.AddAt(array,esdindex);
2866 }
2867 array->AddLast(track);
2868}
44347160 2869//------------------------------------------------------------------------
e43c066c 2870void AliITStrackerMI::SortTrackHypothesys(Int_t esdindex, Int_t maxcut, Int_t mode)
2871{
2872 //-------------------------------------------------------------------
2873 // compress array of track hypothesys
2874 // keep only maxsize best hypothesys
2875 //-------------------------------------------------------------------
2876 if (esdindex>fTrackHypothesys.GetEntriesFast()) return;
2877 if (! (fTrackHypothesys.At(esdindex)) ) return;
2878 TObjArray * array = (TObjArray*) fTrackHypothesys.At(esdindex);
2879 Int_t entries = array->GetEntriesFast();
2880 //
2881 //- find preliminary besttrack as a reference
2882 Float_t minchi2=10000;
2883 Int_t maxn=0;
15dd636f 2884 AliITStrackMI * besttrack=0;
e43c066c 2885 for (Int_t itrack=0;itrack<array->GetEntriesFast();itrack++){
15dd636f 2886 AliITStrackMI * track = (AliITStrackMI*)array->At(itrack);
e43c066c 2887 if (!track) continue;
2888 Float_t chi2 = NormalizedChi2(track,0);
2889 //
b9671574 2890 Int_t tpcLabel=track->GetESDtrack()->GetTPCLabel();
e43c066c 2891 track->SetLabel(tpcLabel);
2892 CookdEdx(track);
b9671574 2893 track->SetFakeRatio(1.);
e43c066c 2894 CookLabel(track,0.); //For comparison only
2895 //
44347160 2896 //if (chi2<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&track->fFakeRatio==0){
2897 if (chi2<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)){
e43c066c 2898 if (track->GetNumberOfClusters()<maxn) continue;
2899 maxn = track->GetNumberOfClusters();
2900 if (chi2<minchi2){
2901 minchi2=chi2;
2902 besttrack=track;
2903 }
2904 }
2905 else{
b9671574 2906 if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain
628e7bb0 2907 delete array->RemoveAt(itrack);
2908 }
e43c066c 2909 }
2910 }
2911 if (!besttrack) return;
2912 //
2913 //
2914 //take errors of best track as a reference
2915 Float_t *erry = GetErrY(esdindex), *errz = GetErrZ(esdindex);
2916 Float_t *ny = GetNy(esdindex), *nz = GetNz(esdindex);
2917 for (Int_t i=0;i<6;i++) {
b9671574 2918 if (besttrack->GetClIndex(i)>0){
2919 erry[i] = besttrack->GetSigmaY(i); erry[i+6] = besttrack->GetSigmaY(i+6);
2920 errz[i] = besttrack->GetSigmaZ(i); errz[i+6] = besttrack->GetSigmaZ(i+6);
2921 ny[i] = besttrack->GetNy(i);
2922 nz[i] = besttrack->GetNz(i);
e43c066c 2923 }
2924 }
2925 //
2926 // calculate normalized chi2
2927 //
2928 Float_t * chi2 = new Float_t[entries];
2929 Int_t * index = new Int_t[entries];
2930 for (Int_t i=0;i<entries;i++) chi2[i] =10000;
2931 for (Int_t itrack=0;itrack<entries;itrack++){
15dd636f 2932 AliITStrackMI * track = (AliITStrackMI*)array->At(itrack);
e43c066c 2933 if (track){
b9671574 2934 track->SetChi2MIP(0,GetNormalizedChi2(track, mode));
44347160 2935 if (track->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0))
b9671574 2936 chi2[itrack] = track->GetChi2MIP(0);
628e7bb0 2937 else{
b9671574 2938 if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain
628e7bb0 2939 delete array->RemoveAt(itrack);
2940 }
2941 }
e43c066c 2942 }
2943 }
2944 //
2945 TMath::Sort(entries,chi2,index,kFALSE);
15dd636f 2946 besttrack = (AliITStrackMI*)array->At(index[0]);
44347160 2947 if (besttrack&&besttrack->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)){
e43c066c 2948 for (Int_t i=0;i<6;i++){
b9671574 2949 if (besttrack->GetClIndex(i)>0){
2950 erry[i] = besttrack->GetSigmaY(i); erry[i+6] = besttrack->GetSigmaY(i+6);
2951 errz[i] = besttrack->GetSigmaZ(i); erry[i+6] = besttrack->GetSigmaY(i+6);
2952 ny[i] = besttrack->GetNy(i);
2953 nz[i] = besttrack->GetNz(i);
e43c066c 2954 }
2955 }
2956 }
2957 //
2958 // calculate one more time with updated normalized errors
2959 for (Int_t i=0;i<entries;i++) chi2[i] =10000;
2960 for (Int_t itrack=0;itrack<entries;itrack++){
15dd636f 2961 AliITStrackMI * track = (AliITStrackMI*)array->At(itrack);
e43c066c 2962 if (track){
b9671574 2963 track->SetChi2MIP(0,GetNormalizedChi2(track,mode));
44347160 2964 if (track->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0))
b9671574 2965 chi2[itrack] = track->GetChi2MIP(0)-0*(track->GetNumberOfClusters()+track->GetNDeadZone());
628e7bb0 2966 else
2967 {
b9671574 2968 if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain
628e7bb0 2969 delete array->RemoveAt(itrack);
2970 }
2971 }
e43c066c 2972 }
2973 }
2974 entries = array->GetEntriesFast();
2975 //
628e7bb0 2976 //
e43c066c 2977 if (entries>0){
2978 TObjArray * newarray = new TObjArray();
2979 TMath::Sort(entries,chi2,index,kFALSE);
15dd636f 2980 besttrack = (AliITStrackMI*)array->At(index[0]);
e43c066c 2981 if (besttrack){
2982 //
2983 for (Int_t i=0;i<6;i++){
b9671574 2984 if (besttrack->GetNz(i)>0&&besttrack->GetNy(i)>0){
2985 erry[i] = besttrack->GetSigmaY(i); erry[i+6] = besttrack->GetSigmaY(i+6);
2986 errz[i] = besttrack->GetSigmaZ(i); errz[i+6] = besttrack->GetSigmaZ(i+6);
2987 ny[i] = besttrack->GetNy(i);
2988 nz[i] = besttrack->GetNz(i);
e43c066c 2989 }
2990 }
b9671574 2991 besttrack->SetChi2MIP(0,GetNormalizedChi2(besttrack,mode));
44347160 2992 Float_t minchi2 = TMath::Min(besttrack->GetChi2MIP(0)+5.+besttrack->GetNUsed(), double(AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)));
e43c066c 2993 Float_t minn = besttrack->GetNumberOfClusters()-3;
2994 Int_t accepted=0;
2995 for (Int_t i=0;i<entries;i++){
15dd636f 2996 AliITStrackMI * track = (AliITStrackMI*)array->At(index[i]);
e43c066c 2997 if (!track) continue;
2998 if (accepted>maxcut) break;
b9671574 2999 track->SetChi2MIP(0,GetNormalizedChi2(track,mode));
3000 if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain
3001 if (track->GetNumberOfClusters()<6 && (track->GetChi2MIP(0)+track->GetNUsed()>minchi2)){
628e7bb0 3002 delete array->RemoveAt(index[i]);
3003 continue;
3004 }
e43c066c 3005 }
b9671574 3006 Bool_t shortbest = !track->GetConstrain() && track->GetNumberOfClusters()<6;
3007 if ((track->GetChi2MIP(0)+track->GetNUsed()<minchi2 && track->GetNumberOfClusters()>=minn) ||shortbest){
628e7bb0 3008 if (!shortbest) accepted++;
e43c066c 3009 //
3010 newarray->AddLast(array->RemoveAt(index[i]));
3011 for (Int_t i=0;i<6;i++){
3012 if (nz[i]==0){
b9671574 3013 erry[i] = track->GetSigmaY(i); erry[i+6] = track->GetSigmaY(i+6);
3014 errz[i] = track->GetSigmaZ(i); errz[i] = track->GetSigmaZ(i+6);
3015 ny[i] = track->GetNy(i);
3016 nz[i] = track->GetNz(i);
e43c066c 3017 }
3018 }
3019 }
3020 else{
3021 delete array->RemoveAt(index[i]);
3022 }
3023 }
3024 array->Delete();
3025 delete fTrackHypothesys.RemoveAt(esdindex);
3026 fTrackHypothesys.AddAt(newarray,esdindex);
3027 }
3028 else{
3029 array->Delete();
3030 delete fTrackHypothesys.RemoveAt(esdindex);
3031 }
3032 }
3033 delete [] chi2;
3034 delete [] index;
3035}
44347160 3036//------------------------------------------------------------------------
15dd636f 3037AliITStrackMI * AliITStrackerMI::GetBestHypothesys(Int_t esdindex, AliITStrackMI * original, Int_t checkmax)
e43c066c 3038{
3039 //-------------------------------------------------------------
3040 // try to find best hypothesy
3041 // currently - minimal chi2 of track+backpropagated track+matching to the tpc track
3042 //-------------------------------------------------------------
3043 if (fTrackHypothesys.GetEntriesFast()<=esdindex) return 0;
3044 TObjArray * array = (TObjArray*) fTrackHypothesys.At(esdindex);
3045 if (!array) return 0;
3046 Int_t entries = array->GetEntriesFast();
3047 if (!entries) return 0;
3048 Float_t minchi2 = 100000;
15dd636f 3049 AliITStrackMI * besttrack=0;
e43c066c 3050 //
15dd636f 3051 AliITStrackMI * backtrack = new AliITStrackMI(*original);
3052 AliITStrackMI * forwardtrack = new AliITStrackMI(*original);
afd25725 3053 Double_t xyzVtx[]={GetX(),GetY(),GetZ()};
3054 Double_t ersVtx[]={GetSigmaX()/3.,GetSigmaY()/3.,GetSigmaZ()/3.};
e43c066c 3055 //
3056 for (Int_t i=0;i<entries;i++){
15dd636f 3057 AliITStrackMI * track = (AliITStrackMI*)array->At(i);
e43c066c 3058 if (!track) continue;
628e7bb0 3059 Float_t sigmarfi,sigmaz;
3060 GetDCASigma(track,sigmarfi,sigmaz);
b9671574 3061 track->SetDnorm(0,sigmarfi);
3062 track->SetDnorm(1,sigmaz);
628e7bb0 3063 //
b9671574 3064 track->SetChi2MIP(1,1000000);
3065 track->SetChi2MIP(2,1000000);
3066 track->SetChi2MIP(3,1000000);
e43c066c 3067 //
3068 // backtrack
15dd636f 3069 backtrack = new(backtrack) AliITStrackMI(*track);
afd25725 3070 if (track->GetConstrain()) {
e50912db 3071 if (!CorrectForPipeMaterial(backtrack,"inward")) continue;
afd25725 3072 if (!backtrack->Improve(0,xyzVtx,ersVtx)) continue;
6c94f330 3073 backtrack->ResetCovariance(10.);
628e7bb0 3074 }else{
6c94f330 3075 backtrack->ResetCovariance(10.);
628e7bb0 3076 }
e43c066c 3077 backtrack->ResetClusters();
628e7bb0 3078
e43c066c 3079 Double_t x = original->GetX();
3080 if (!RefitAt(x,backtrack,track)) continue;
628e7bb0 3081 //
b9671574 3082 track->SetChi2MIP(1,NormalizedChi2(backtrack,0));
e43c066c 3083 //for (Int_t i=2;i<6;i++){track->fDy[i]+=backtrack->fDy[i]; track->fDz[i]+=backtrack->fDz[i];}
44347160 3084 if (track->GetChi2MIP(1)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)*6.) continue;
b9671574 3085 track->SetChi22(GetMatchingChi2(backtrack,original));
e43c066c 3086
b9671574 3087 if ((track->GetConstrain()) && track->GetChi22()>90.) continue;
3088 if ((!track->GetConstrain()) && track->GetChi22()>30.) continue;
3089 if ( track->GetChi22()/track->GetNumberOfClusters()>11.) continue;
e43c066c 3090
3091
44347160 3092 if (!(track->GetConstrain())&&track->GetChi2MIP(1)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)) continue;
e43c066c 3093 //
3094 //forward track - without constraint
15dd636f 3095 forwardtrack = new(forwardtrack) AliITStrackMI(*original);
e43c066c 3096 forwardtrack->ResetClusters();
3097 x = track->GetX();
628e7bb0 3098 RefitAt(x,forwardtrack,track);
b9671574 3099 track->SetChi2MIP(2,NormalizedChi2(forwardtrack,0));
44347160 3100 if (track->GetChi2MIP(2)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)*6.0) continue;
3101 if (!(track->GetConstrain())&&track->GetChi2MIP(2)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)) continue;
e43c066c 3102
791f9a2a 3103 //track->fD[0] = forwardtrack->GetD(GetX(),GetY());
3104 //track->fD[1] = forwardtrack->GetZat(GetX())-GetZ();
b9671574 3105 forwardtrack->GetDZ(GetX(),GetY(),GetZ(),track->GetDP()); //I.B.
3106 forwardtrack->SetD(0,track->GetD(0));
3107 forwardtrack->SetD(1,track->GetD(1));
e43c066c 3108 {
3109 Int_t list[6];
00a7cc50 3110 AliITSRecPoint* clist[6];
b9671574 3111 track->SetChi2MIP(4,GetNumberOfSharedClusters(track,esdindex,list,clist));
3112 if ( (!track->GetConstrain()) && track->GetChi2MIP(4)>1.0) continue;
e43c066c 3113 }
3114
b9671574 3115 track->SetChi2MIP(3,GetInterpolatedChi2(forwardtrack,backtrack));
44347160 3116 if ( (track->GetChi2MIP(3)>6.*AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3))) continue;
3117 if ( (!track->GetConstrain()) && (track->GetChi2MIP(3)>2*AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3))) {
b9671574 3118 track->SetChi2MIP(3,1000);
e43c066c 3119 continue;
3120 }
b9671574 3121 Double_t chi2 = track->GetChi2MIP(0)+track->GetNUsed();
e43c066c 3122 //
3123 for (Int_t ichi=0;ichi<5;ichi++){
b9671574 3124 forwardtrack->SetChi2MIP(ichi, track->GetChi2MIP(ichi));
e43c066c 3125 }
3126 if (chi2 < minchi2){
15dd636f 3127 //besttrack = new AliITStrackMI(*forwardtrack);
99c2ee26 3128 besttrack = track;
e43c066c 3129 besttrack->SetLabel(track->GetLabel());
b9671574 3130 besttrack->SetFakeRatio(track->GetFakeRatio());
e43c066c 3131 minchi2 = chi2;
791f9a2a 3132 //original->fD[0] = forwardtrack->GetD(GetX(),GetY());
3133 //original->fD[1] = forwardtrack->GetZat(GetX())-GetZ();
b9671574 3134 forwardtrack->GetDZ(GetX(),GetY(),GetZ(),original->GetDP()); //I.B.
e43c066c 3135 }
3136 }
3137 delete backtrack;
3138 delete forwardtrack;
3139 Int_t accepted=0;
3140 for (Int_t i=0;i<entries;i++){
15dd636f 3141 AliITStrackMI * track = (AliITStrackMI*)array->At(i);
e43c066c 3142 if (!track) continue;
628e7bb0 3143
44347160 3144 if (accepted>checkmax || track->GetChi2MIP(3)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)*6. ||
e43c066c 3145 (track->GetNumberOfClusters()<besttrack->GetNumberOfClusters()-1.)||
b9671574 3146 track->GetChi2MIP(0)>besttrack->GetChi2MIP(0)+2.*besttrack->GetNUsed()+3.){
3147 if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain
628e7bb0 3148 delete array->RemoveAt(i);
3149 continue;
3150 }
e43c066c 3151 }
3152 else{
3153 accepted++;
3154 }
3155 }
3156 //
3157 array->Compress();
3158 SortTrackHypothesys(esdindex,checkmax,1);
3159 array = (TObjArray*) fTrackHypothesys.At(esdindex);
afdf9b9c 3160 if (!array) return 0; // PH What can be the reason? Check SortTrackHypothesys
15dd636f 3161 besttrack = (AliITStrackMI*)array->At(0);
e43c066c 3162 if (!besttrack) return 0;
b9671574 3163 besttrack->SetChi2MIP(8,0);
e43c066c 3164 fBestTrackIndex[esdindex]=0;
3165 entries = array->GetEntriesFast();
15dd636f 3166 AliITStrackMI *longtrack =0;
e43c066c 3167 minchi2 =1000;
b9671574 3168 Float_t minn=besttrack->GetNumberOfClusters()+besttrack->GetNDeadZone();
6518a6c5 3169 for (Int_t itrack=entries-1;itrack>0;itrack--) {
15dd636f 3170 AliITStrackMI * track = (AliITStrackMI*)array->At(itrack);
b9671574 3171 if (!track->GetConstrain()) continue;
3172 if (track->GetNumberOfClusters()+track->GetNDeadZone()<minn) continue;
3173 if (track->GetChi2MIP(0)-besttrack->GetChi2MIP(0)>0.0) continue;
3174 if (track->GetChi2MIP(0)>4.) continue;
3175 minn = track->GetNumberOfClusters()+track->GetNDeadZone();
e43c066c 3176 longtrack =track;
3177 }
3178 //if (longtrack) besttrack=longtrack;
3179
3180 Int_t list[6];
00a7cc50 3181 AliITSRecPoint * clist[6];
e43c066c 3182 Float_t shared = GetNumberOfSharedClusters(besttrack,esdindex,list,clist);
44347160 3183 if (besttrack->GetConstrain()&&besttrack->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&besttrack->GetChi2MIP(1)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)
3184 &&besttrack->GetChi2MIP(2)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)&&besttrack->GetChi2MIP(3)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)){
e43c066c 3185 RegisterClusterTracks(besttrack,esdindex);
3186 }
3187 //
3188 //
3189 if (shared>0.0){
3190 Int_t nshared;
3191 Int_t overlist[6];
3192 Int_t sharedtrack = GetOverlapTrack(besttrack, esdindex, nshared, list, overlist);
3193 if (sharedtrack>=0){
3194 //
3195 besttrack = GetBest2Tracks(esdindex,sharedtrack,10,5.5);
3196 if (besttrack){
3197 shared = GetNumberOfSharedClusters(besttrack,esdindex,list,clist);
3198 }
3199 else return 0;
3200 }
3201 }
3202
3203 if (shared>2.5) return 0;
3204 if (shared>1.0) return besttrack;
3205 //
628e7bb0 3206 // Don't sign clusters if not gold track
3207 //
3208 if (!besttrack->IsGoldPrimary()) return besttrack;
b9671574 3209 if (besttrack->GetESDtrack()->GetKinkIndex(0)!=0) return besttrack; //track belong to kink
628e7bb0 3210 //
e43c066c 3211 if (fConstraint[fPass]){
3212 //
3213 // sign clusters
3214 //
3215 Float_t *ny = GetNy(esdindex), *nz = GetNz(esdindex);
3216 for (Int_t i=0;i<6;i++){
b9671574 3217 Int_t index = besttrack->GetClIndex(i);
e43c066c 3218 if (index<=0) continue;
3219 Int_t ilayer = (index & 0xf0000000) >> 28;
b9671574 3220 if (besttrack->GetSigmaY(ilayer)<0.00000000001) continue;
00a7cc50 3221 AliITSRecPoint *c = (AliITSRecPoint*)GetCluster(index);
e43c066c 3222 if (!c) continue;
3223 if (ilayer>3&&c->GetNy()+c->GetNz()>6) continue;
3224 if ( (c->GetNy()+c->GetNz() )> ny[i]+nz[i]+0.7) continue; //shared track
3225 if ( c->GetNz()> nz[i]+0.7) continue; //shared track
572f41f9 3226 if ( ilayer>2&& AliITSReconstructor::GetRecoParam()->GetUseAmplitudeInfo(ilayer))
3227 if (besttrack->GetNormQ(ilayer)/besttrack->GetExpQ()>1.5) continue;
e43c066c 3228 //if ( c->GetNy()> ny[i]+0.7) continue; //shared track
3229
3230 Bool_t cansign = kTRUE;
3231 for (Int_t itrack=0;itrack<entries; itrack++){
15dd636f 3232 AliITStrackMI * track = (AliITStrackMI*)array->At(i);
e43c066c 3233 if (!track) continue;
b9671574 3234 if (track->GetChi2MIP(0)>besttrack->GetChi2MIP(0)+2.*shared+1.) break;
3235 if ( (track->GetClIndex(ilayer)>0) && (track->GetClIndex(ilayer)!=besttrack->GetClIndex(ilayer))){
e43c066c 3236 cansign = kFALSE;
3237 break;
3238 }
3239 }
3240 if (cansign){
b9671574 3241 if (TMath::Abs(besttrack->GetDy(ilayer)/besttrack->GetSigmaY(ilayer))>3.) continue;
3242 if (TMath::Abs(besttrack->GetDz(ilayer)/besttrack->GetSigmaZ(ilayer))>3.) continue;
e43c066c 3243 if (!c->IsUsed()) c->Use();
3244 }
3245 }
3246 }
3247 return besttrack;
3248}
44347160 3249//------------------------------------------------------------------------
e43c066c 3250void AliITStrackerMI::GetBestHypothesysMIP(TObjArray &itsTracks)
3251{
3252 //
3253 // get "best" hypothesys
628e7bb0 3254 //
e43c066c 3255
3256 Int_t nentries = itsTracks.GetEntriesFast();
3257 for (Int_t i=0;i<nentries;i++){
15dd636f 3258 AliITStrackMI* track = (AliITStrackMI*)itsTracks.At(i);
e43c066c 3259 if (!track) continue;
3260 TObjArray * array = (TObjArray*) fTrackHypothesys.At(i);
3261 if (!array) continue;
3262 if (array->GetEntriesFast()<=0) continue;
3263 //
15dd636f 3264 AliITStrackMI* longtrack=0;
e43c066c 3265 Float_t minn=0;
3266 Float_t maxchi2=1000;
3267 for (Int_t j=0;j<array->GetEntriesFast();j++){
15dd636f 3268 AliITStrackMI* track = (AliITStrackMI*)array->At(j);
e43c066c 3269 if (!track) continue;
b9671574 3270 if (track->GetGoldV0()) {
628e7bb0 3271 longtrack = track; //gold V0 track taken
3272 break;
3273 }
b9671574 3274 if (track->GetNumberOfClusters()+track->GetNDeadZone()<minn) continue;
3275 Float_t chi2 = track->GetChi2MIP(0);
628e7bb0 3276 if (fAfterV0){
b9671574 3277 if (!track->GetGoldV0()&&track->GetConstrain()==kFALSE) chi2+=5;
628e7bb0 3278 }
b9671574 3279 if (track->GetNumberOfClusters()+track->GetNDeadZone()>minn) maxchi2 = track->GetChi2MIP(0);
628e7bb0 3280 //
3281 if (chi2 > maxchi2) continue;
b9671574 3282 minn= track->GetNumberOfClusters()+track->GetNDeadZone();
628e7bb0 3283 maxchi2 = chi2;
e43c066c 3284 longtrack=track;
e43c066c 3285 }
628e7bb0 3286 //
3287 //
3288 //
15dd636f 3289 AliITStrackMI * besttrack = (AliITStrackMI*)array->At(0);
e43c066c 3290 if (!longtrack) {longtrack = besttrack;}
3291 else besttrack= longtrack;
628e7bb0 3292 //
afd25725 3293 if (besttrack) {
e43c066c 3294 Int_t list[6];
00a7cc50 3295 AliITSRecPoint * clist[6];
e43c066c 3296 Float_t shared = GetNumberOfSharedClusters(longtrack,i,list,clist);
3297 //
b9671574 3298 track->SetNUsed(shared);
3299 track->SetNSkipped(besttrack->GetNSkipped());
3300 track->SetChi2MIP(0,besttrack->GetChi2MIP(0));
afd25725 3301 if (shared>0) {
3302 if(!AliITSReconstructor::GetRecoParam()->GetAllowSharedClusters()) continue;
e43c066c 3303 Int_t nshared;
3304 Int_t overlist[6];
3305 //
3306 Int_t sharedtrack = GetOverlapTrack(longtrack, i, nshared, list, overlist);
3307 //if (sharedtrack==-1) sharedtrack=0;
afd25725 3308 if (sharedtrack>=0) {
e43c066c 3309 besttrack = GetBest2Tracks(i,sharedtrack,10,5.5);
3310 }
3311 }
afd25725 3312 if (besttrack&&fAfterV0) {
628e7bb0 3313 UpdateESDtrack(besttrack,AliESDtrack::kITSin);
3314 }
e43c066c 3315 if (besttrack&&fConstraint[fPass])
3316 UpdateESDtrack(besttrack,AliESDtrack::kITSin);
afd25725 3317 if (besttrack->GetChi2MIP(0)+besttrack->GetNUsed()>1.5 && fConstraint[fPass]) {
3318 if ( TMath::Abs(besttrack->GetD(0))>0.1 ||
3319 TMath::Abs(besttrack->GetD(1))>0.1 ) track->SetReconstructed(kFALSE);
e43c066c 3320 }
3321
3322 }
3323 }
3324}
44347160 3325//------------------------------------------------------------------------
15dd636f 3326void AliITStrackerMI::CookLabel(AliITStrackMI *track,Float_t wrong) const {
e43c066c 3327 //--------------------------------------------------------------------
3328 //This function "cooks" a track label. If label<0, this track is fake.
3329 //--------------------------------------------------------------------
3330 Int_t tpcLabel=-1;
3331
b9671574 3332 if ( track->GetESDtrack()) tpcLabel = TMath::Abs(track->GetESDtrack()->GetTPCLabel());
e43c066c 3333
b9671574 3334 track->SetChi2MIP(9,0);
e43c066c 3335 Int_t nwrong=0;
3336 for (Int_t i=0;i<track->GetNumberOfClusters();i++){
3337 Int_t cindex = track->GetClusterIndex(i);
3338 Int_t l=(cindex & 0xf0000000) >> 28;
00a7cc50 3339 AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(cindex);
e43c066c 3340 Int_t isWrong=1;
3341 for (Int_t ind=0;ind<3;ind++){
3342 if (tpcLabel>0)
3343 if (cl->GetLabel(ind)==tpcLabel) isWrong=0;
3344 }
b9671574 3345 track->SetChi2MIP(9,track->GetChi2MIP(9)+isWrong*(2<<l));
e43c066c 3346 nwrong+=isWrong;
3347 }
7d43b4c4 3348 Int_t nclusters = track->GetNumberOfClusters();
3349 if (nclusters > 0) //PH Some tracks don't have any cluster
3350 track->SetFakeRatio(double(nwrong)/double(nclusters));
e43c066c 3351 if (tpcLabel>0){
b9671574 3352 if (track->GetFakeRatio()>wrong) track->SetLabel(-tpcLabel);
e43c066c 3353 else
b9671574 3354 track->SetLabel(tpcLabel);
e43c066c 3355 }
3356
3357}
44347160 3358//------------------------------------------------------------------------
15dd636f 3359void AliITStrackerMI::CookdEdx(AliITStrackMI* track)
e43c066c 3360{
3361 //
3362 //
3363 // Int_t list[6];
00a7cc50 3364 //AliITSRecPoint * clist[6];
e43c066c 3365 // Int_t shared = GetNumberOfSharedClusters(track,index,list,clist);
3366 Float_t dedx[4];
3367 Int_t accepted=0;
b9671574 3368 track->SetChi2MIP(9,0);
e43c066c 3369 for (Int_t i=0;i<track->GetNumberOfClusters();i++){
3370 Int_t cindex = track->GetClusterIndex(i);
3371 Int_t l=(cindex & 0xf0000000) >> 28;
00a7cc50 3372 AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(cindex);
b9671574 3373 Int_t lab = TMath::Abs(track->GetESDtrack()->GetTPCLabel());
e43c066c 3374 Int_t isWrong=1;
3375 for (Int_t ind=0;ind<3;ind++){
3376 if (cl->GetLabel(ind)==lab) isWrong=0;
3377 }
b9671574 3378 track->SetChi2MIP(9,track->GetChi2MIP(9)+isWrong*(2<<l));
e43c066c 3379 if (l<2) continue;
3380 //if (l>3 && (cl->GetNy()>4) || (cl->GetNz()>4)) continue; //shared track
3381 //if (l>3&& !(cl->GetType()==1||cl->GetType()==10)) continue;
3382 //if (l<4&& !(cl->GetType()==1)) continue;
b9671574 3383 dedx[accepted]= track->GetSampledEdx(i);
e43c066c 3384 //dedx[accepted]= track->fNormQ[l];
3385 accepted++;
3386 }
3387 if (accepted<1) {
3388 track->SetdEdx(0);
3389 return;
3390 }
3391 Int_t indexes[4];
3392 TMath::Sort(accepted,dedx,indexes,kFALSE);
3393 Double_t low=0.;
3394 Double_t up=0.51;
3395 Double_t nl=low*accepted, nu =up*accepted;
3396 Float_t sumamp = 0;
3397 Float_t sumweight =0;
3398 for (Int_t i=0; i<accepted; i++) {
3399 Float_t weight =1;
3400 if (i<nl+0.1) weight = TMath::Max(1.-(nl-i),0.);
3401 if (i>nu-1) weight = TMath::Max(nu-i,0.);
3402 sumamp+= dedx[indexes[i]]*weight;
3403 sumweight+=weight;
3404 }
3405 track->SetdEdx(sumamp/sumweight);
3406}
44347160 3407//------------------------------------------------------------------------
e50912db 3408void AliITStrackerMI::MakeCoefficients(Int_t ntracks){
e43c066c 3409 //
3410 //
afd25725 3411 if (fCoefficients) delete []fCoefficients;
3412 fCoefficients = new Float_t[ntracks*48];
3413 for (Int_t i=0;i<ntracks*48;i++) fCoefficients[i]=-1.;
e43c066c 3414}
44347160 3415//------------------------------------------------------------------------
00a7cc50 3416Double_t AliITStrackerMI::GetPredictedChi2MI(AliITStrackMI* track, const AliITSRecPoint *cluster,Int_t layer)
e43c066c 3417{
3418 //
3419 //
3420 //
3421 Float_t erry,errz;
3422 Float_t theta = track->GetTgl();
3423 Float_t phi = track->GetSnp();
3424 phi = TMath::Sqrt(phi*phi/(1.-phi*phi));
e50912db 3425 AliITSClusterParam::GetError(layer,cluster,theta,phi,track->GetExpQ(),erry,errz);
e43c066c 3426 Double_t chi2 = track->GetPredictedChi2MI(cluster->GetY(),cluster->GetZ(),erry,errz);
3427 Float_t ny,nz;
e50912db 3428 AliITSClusterParam::GetNTeor(layer,cluster,theta,phi,ny,nz);
e43c066c 3429 Double_t delta = cluster->GetNy()+cluster->GetNz()-nz-ny;
3430 if (delta>1){
3431 chi2+=0.5*TMath::Min(delta/2,2.);
3432 chi2+=2.*cluster->GetDeltaProbability();
3433 }
3434 //
b9671574 3435 track->SetNy(layer,ny);
3436 track->SetNz(layer,nz);
3437 track->SetSigmaY(layer,erry);
3438 track->SetSigmaZ(layer, errz);
e43c066c 3439 //track->fNormQ[layer] = cluster->GetQ()/TMath::Sqrt(1+theta*theta+phi*phi);
b9671574 3440 track->SetNormQ(layer,cluster->GetQ()/TMath::Sqrt((1.+ track->GetTgl()*track->GetTgl())/(1.- track->GetSnp()*track->GetSnp())));
e43c066c 3441 return chi2;
3442
3443}
e50912db 3444//------------------------------------------------------------------------
3445Int_t AliITStrackerMI::UpdateMI(AliITStrackMI* track, const AliITSRecPoint* cl,Double_t chi2,Int_t index) const
e43c066c 3446{
3447 //
3448 //
3449 //
3450 Int_t layer = (index & 0xf0000000) >> 28;
b9671574 3451 track->SetClIndex(layer, index);
572f41f9 3452 if (layer>1&&AliITSReconstructor::GetRecoParam()->GetUseAmplitudeInfo(layer)) {
3453 if (track->GetNormQ(layer)/track->GetExpQ()<0.5 ) {
3454 chi2+= (0.5-track->GetNormQ(layer)/track->GetExpQ())*10.;
3455 track->SetdEdxMismatch(track->GetdEdxMismatch()+(0.5-track->GetNormQ(layer)/track->GetExpQ())*10.);
3456 }
e43c066c 3457 }
a504d56f 3458
1f3e997f 3459 if (cl->GetQ()<=0) return 0; // ingore the "virtual" clusters
a504d56f 3460
afd25725 3461 //Float_t clxyz[3]; cl->GetGlobalXYZ(clxyz);Double_t trxyz[3]; track->GetXYZ(trxyz);printf("gtr %f %f %f\n",trxyz[0],trxyz[1],trxyz[2]);printf("gcl %f %f %f\n",clxyz[0],clxyz[1],clxyz[2]);
3462
3463
1f3e997f 3464 // Take into account the mis-alignment
3465 Double_t x=track->GetX()+cl->GetX();
3466 if (!track->PropagateTo(x,0.,0.)) return 0;
3467
150f264c 3468 AliCluster c(*cl);
3469 c.SetSigmaY2(track->GetSigmaY(layer)*track->GetSigmaY(layer));
3470 c.SetSigmaZ2(track->GetSigmaZ(layer)*track->GetSigmaZ(layer));
3471
3472 return track->UpdateMI(&c,chi2,index);
e43c066c 3473}
150f264c 3474
44347160 3475//------------------------------------------------------------------------
e50912db 3476void AliITStrackerMI::GetDCASigma(AliITStrackMI* track, Float_t & sigmarfi, Float_t &sigmaz)
628e7bb0 3477{
3478 //
3479 //DCA sigmas parameterization
3480 //to be paramterized using external parameters in future
3481 //
3482 //
afd25725 3483 sigmarfi = 0.0040+1.4 *TMath::Abs(track->GetC())+332.*track->GetC()*track->GetC();
3484 sigmaz = 0.0110+4.37*TMath::Abs(track->GetC());
628e7bb0 3485}
e50912db 3486//------------------------------------------------------------------------
e43c066c 3487void AliITStrackerMI::SignDeltas( TObjArray *ClusterArray, Float_t vz)
3488{
3489 //
3490 //
3491 Int_t entries = ClusterArray->GetEntriesFast();
3492 if (entries<4) return;
00a7cc50 3493 AliITSRecPoint* cluster = (AliITSRecPoint*)ClusterArray->At(0);
e43c066c 3494 Int_t layer = cluster->GetLayer();
3495 if (layer>1) return;
3496 Int_t index[10000];
3497 Int_t ncandidates=0;
3498 Float_t r = (layer>0)? 7:4;
3499 //
3500 for (Int_t i=0;i<entries;i++){
00a7cc50 3501 AliITSRecPoint* cl0 = (AliITSRecPoint*)ClusterArray->At(i);
e43c066c 3502 Float_t nz = 1+TMath::Abs((cl0->GetZ()-vz)/r);
3503 if (cl0->GetNy()+cl0->GetNz()<=5+2*layer+nz) continue;
3504 index[ncandidates] = i; //candidate to belong to delta electron track
3505 ncandidates++;
3506 if (cl0->GetNy()+cl0->GetNz()>9+2*layer+nz) {
3507 cl0->SetDeltaProbability(1);
3508 }
3509 }
3510 //
3511 //
3512 //
3513 for (Int_t i=0;i<ncandidates;i++){
00a7cc50 3514 AliITSRecPoint* cl0 = (AliITSRecPoint*)ClusterArray->At(index[i]);
e43c066c 3515 if (cl0->GetDeltaProbability()>0.8) continue;
3516 //
3517 Int_t ncl = 0;
3518 Float_t y[100],z[100],sumy,sumz,sumy2, sumyz, sumw;
3519 sumy=sumz=sumy2=sumyz=sumw=0.0;
3520 for (Int_t j=0;j<ncandidates;j++){
3521 if (i==j) continue;
00a7cc50 3522 AliITSRecPoint* cl1 = (AliITSRecPoint*)ClusterArray->At(index[j]);
e43c066c 3523 //
3524 Float_t dz = cl0->GetZ()-cl1->GetZ();
3525 Float_t dy = cl0->GetY()-cl1->GetY();
3526 if (TMath::Sqrt(dz*dz+dy*dy)<0.2){
3527 Float_t weight = cl1->GetNy()+cl1->GetNz()-2;
3528 y[ncl] = cl1->GetY();
3529 z[ncl] = cl1->GetZ();
3530 sumy+= y[ncl]*weight;
3531 sumz+= z[ncl]*weight;
3532 sumy2+=y[ncl]*y[ncl]*weight;
3533 sumyz+=y[ncl]*z[ncl]*weight;
3534 sumw+=weight;
3535 ncl++;
3536 }
3537 }
3538 if (ncl<4) continue;
3539 Float_t det = sumw*sumy2 - sumy*sumy;
3540 Float_t delta=1000;
3541 if (TMath::Abs(det)>0.01){
3542 Float_t z0 = (sumy2*sumz - sumy*sumyz)/det;
3543 Float_t k = (sumyz*sumw - sumy*sumz)/det;
3544 delta = TMath::Abs(cl0->GetZ()-(z0+k*cl0->GetY()));
3545 }
3546 else{
3547 Float_t z0 = sumyz/sumy;
3548 delta = TMath::Abs(cl0->GetZ()-z0);
3549 }
3550 if ( delta<0.05) {
3551 cl0->SetDeltaProbability(1-20.*delta);
3552 }
3553 }
3554}
44347160 3555//------------------------------------------------------------------------
15dd636f 3556void AliITStrackerMI::UpdateESDtrack(AliITStrackMI* track, ULong_t flags) const
e43c066c 3557{
3558 //
3559 //
3560 track->UpdateESDtrack(flags);
b9671574 3561 AliITStrackMI * oldtrack = (AliITStrackMI*)(track->GetESDtrack()->GetITStrack());
99c2ee26 3562 if (oldtrack) delete oldtrack;
b9671574 3563 track->GetESDtrack()->SetITStrack(new AliITStrackMI(*track));
3564 if (TMath::Abs(track->GetDnorm(1))<0.000000001){
628e7bb0 3565 printf("Problem\n");
3566 }
e43c066c 3567}
44347160 3568//------------------------------------------------------------------------
81e97e0d 3569Int_t AliITStrackerMI::GetNearestLayer(const Double_t *xr) const{
3570 //
ae00569a 3571 // Get nearest upper layer close to the point xr.
81e97e0d 3572 // rough approximation
3573 //
bf6adc12 3574 const Float_t kRadiuses[6]={4,6.5,15.03,24.,38.5,43.7};
81e97e0d 3575 Float_t radius = TMath::Sqrt(xr[0]*xr[0]+xr[1]*xr[1]);
3576 Int_t res =6;
3577 for (Int_t i=0;i<6;i++){
bf6adc12 3578 if (radius<kRadiuses[i]){
81e97e0d 3579 res =i;
3580 break;
3581 }
3582 }
3583 return res;
3584}
44347160 3585//------------------------------------------------------------------------
af885e0f 3586void AliITStrackerMI::UpdateTPCV0(AliESDEvent *event){
81e97e0d 3587 //
3588 //try to update, or reject TPC V0s
3589 //
d6a49f20 3590 Int_t nv0s = event->GetNumberOfV0s();
81e97e0d 3591 Int_t nitstracks = fTrackHypothesys.GetEntriesFast();
51ad6848 3592
81e97e0d 3593 for (Int_t i=0;i<nv0s;i++){
d6a49f20 3594 AliESDv0 * vertex = event->GetV0(i);
81e97e0d 3595 Int_t ip = vertex->GetIndex(0);
3596 Int_t im = vertex->GetIndex(1);
3597 //
3598 TObjArray * arrayp = (ip<nitstracks) ? (TObjArray*)fTrackHypothesys.At(ip):0;
3599 TObjArray * arraym = (im<nitstracks) ? (TObjArray*)fTrackHypothesys.At(im):0;
3600 AliITStrackMI * trackp = (arrayp!=0) ? (AliITStrackMI*)arrayp->At(0):0;
3601 AliITStrackMI * trackm = (arraym!=0) ? (AliITStrackMI*)arraym->At(0):0;
3602 //
3603 //
3604 if (trackp){
b9671574 3605 if (trackp->GetNumberOfClusters()+trackp->GetNDeadZone()>5.5){
3606 if (trackp->GetConstrain()&&trackp->GetChi2MIP(0)<3) vertex->SetStatus(-100);
3607 if (!trackp->GetConstrain()&&trackp->GetChi2MIP(0)<2) vertex->SetStatus(-100);
81e97e0d 3608 }
3609 }
51ad6848 3610
81e97e0d 3611 if (trackm){
b9671574 3612 if (trackm->GetNumberOfClusters()+trackm->GetNDeadZone()>5.5){
3613 if (trackm->GetConstrain()&&trackm->GetChi2MIP(0)<3) vertex->SetStatus(-100);
3614 if (!trackm->GetConstrain()&&trackm->GetChi2MIP(0)<2) vertex->SetStatus(-100);
81e97e0d 3615 }
3616 }
3617 if (vertex->GetStatus()==-100) continue;
3618 //
b75d63a7 3619 Double_t xrp[3]; vertex->GetXYZ(xrp[0],xrp[1],xrp[2]); //I.B.
3620 Int_t clayer = GetNearestLayer(xrp); //I.B.
81e97e0d 3621 vertex->SetNBefore(clayer); //
3622 vertex->SetChi2Before(9*clayer); //
3623 vertex->SetNAfter(6-clayer); //
3624 vertex->SetChi2After(0); //
3625 //
3626 if (clayer >1 ){ // calculate chi2 before vertex
3627 Float_t chi2p = 0, chi2m=0;
3628 //
3629 if (trackp){
3630 for (Int_t ilayer=0;ilayer<clayer;ilayer++){
b9671574 3631 if (trackp->GetClIndex(ilayer)>0){
3632 chi2p+=trackp->GetDy(ilayer)*trackp->GetDy(ilayer)/(trackp->GetSigmaY(ilayer)*trackp->GetSigmaY(ilayer))+
3633 trackp->GetDz(ilayer)*trackp->GetDz(ilayer)/(trackp->GetSigmaZ(ilayer)*trackp->GetSigmaZ(ilayer));
81e97e0d 3634 }
3635 else{
3636 chi2p+=9;
3637 }
3638 }
3639 }else{
3640 chi2p = 9*clayer;
3641 }
3642 //
3643 if (trackm){
3644 for (Int_t ilayer=0;ilayer<clayer;ilayer++){
b9671574 3645 if (trackm->GetClIndex(ilayer)>0){
3646 chi2m+=trackm->GetDy(ilayer)*trackm->GetDy(ilayer)/(trackm->GetSigmaY(ilayer)*trackm->GetSigmaY(ilayer))+
3647 trackm->GetDz(ilayer)*trackm->GetDz(ilayer)/(trackm->GetSigmaZ(ilayer)*trackm->GetSigmaZ(ilayer));
81e97e0d 3648 }
3649 else{
3650 chi2m+=9;
3651 }
3652 }
3653 }else{
3654 chi2m = 9*clayer;
3655 }
3656 vertex->SetChi2Before(TMath::Min(chi2p,chi2m));
3657 if (TMath::Min(chi2p,chi2m)/Float_t(clayer)<4) vertex->SetStatus(-10); // track exist before vertex
3658 }
3659
3660 if (clayer < 5 ){ // calculate chi2 after vertex
3661 Float_t chi2p = 0, chi2m=0;
3662 //
6c94f330 3663 if (trackp&&TMath::Abs(trackp->GetTgl())<1.){
81e97e0d 3664 for (Int_t ilayer=clayer;ilayer<6;ilayer++){
b9671574 3665 if (trackp->GetClIndex(ilayer)>0){
3666 chi2p+=trackp->GetDy(ilayer)*trackp->GetDy(ilayer)/(trackp->GetSigmaY(ilayer)*trackp->GetSigmaY(ilayer))+
3667 trackp->GetDz(ilayer)*trackp->GetDz(ilayer)/(trackp->GetSigmaZ(ilayer)*trackp->GetSigmaZ(ilayer));
81e97e0d 3668 }
3669 else{
3670 chi2p+=9;
3671 }
3672 }
3673 }else{
3674 chi2p = 0;
3675 }
3676 //
6c94f330 3677 if (trackm&&TMath::Abs(trackm->GetTgl())<1.){
81e97e0d 3678 for (Int_t ilayer=clayer;ilayer<6;ilayer++){
b9671574 3679 if (trackm->GetClIndex(ilayer)>0){
3680 chi2m+=trackm->GetDy(ilayer)*trackm->GetDy(ilayer)/(trackm->GetSigmaY(ilayer)*trackm->GetSigmaY(ilayer))+
3681 trackm->GetDz(ilayer)*trackm->GetDz(ilayer)/(trackm->GetSigmaZ(ilayer)*trackm->GetSigmaZ(ilayer));
81e97e0d 3682 }
3683 else{
3684 chi2m+=9;
3685 }
3686 }
3687 }else{
3688 chi2m = 0;
3689 }
3690 vertex->SetChi2After(TMath::Max(chi2p,chi2m));
3691 if (TMath::Max(chi2m,chi2p)/Float_t(6-clayer)>9) vertex->SetStatus(-20); // track not found in ITS
3692 }
3693 }
3694 //
3695}
44347160 3696//------------------------------------------------------------------------
e50912db 3697void AliITStrackerMI::FindV02(AliESDEvent *event)
e43c066c 3698{
3699 //
81e97e0d 3700 // V0 finder
3701 //
3702 // Cuts on DCA - R dependent
3703 // max distance DCA between 2 tracks cut
3704 // maxDist = TMath::Min(kMaxDist,kMaxDist0+pvertex->GetRr()*kMaxDist);
3705 //
3706 const Float_t kMaxDist0 = 0.1;
3707 const Float_t kMaxDist1 = 0.1;
3708 const Float_t kMaxDist = 1;
3709 const Float_t kMinPointAngle = 0.85;
3710 const Float_t kMinPointAngle2 = 0.99;
3711 const Float_t kMinR = 0.5;
3712 const Float_t kMaxR = 220;
3713 //const Float_t kCausality0Cut = 0.19;
3714 //const Float_t kLikelihood01Cut = 0.25;
3715 //const Float_t kPointAngleCut = 0.9996;
3716 const Float_t kCausality0Cut = 0.19;
3717 const Float_t kLikelihood01Cut = 0.45;
3718 const Float_t kLikelihood1Cut = 0.5;
3719 const Float_t kCombinedCut = 0.55;
3720
3721 //
3722 //
3723 TTreeSRedirector &cstream = *fDebugStreamer;
3724 Int_t ntracks = event->GetNumberOfTracks();
3725 Int_t nitstracks = fTrackHypothesys.GetEntriesFast();
3726 fOriginal.Expand(ntracks);
3727 fTrackHypothesys.Expand(ntracks);
3728 fBestHypothesys.Expand(ntracks);
3729 //
3730 AliHelix * helixes = new AliHelix[ntracks+2];
3731 TObjArray trackarray(ntracks+2); //array with tracks - with vertex constrain
3732 TObjArray trackarrayc(ntracks+2); //array of "best tracks" - without vertex constrain
3733 TObjArray trackarrayl(ntracks+2); //array of "longest tracks" - without vertex constrain
3734 Bool_t * forbidden = new Bool_t [ntracks+2];
3735 Int_t *itsmap = new Int_t [ntracks+2];
3736 Float_t *dist = new Float_t[ntracks+2];
3737 Float_t *normdist0 = new Float_t[ntracks+2];
3738 Float_t *normdist1 = new Float_t[ntracks+2];
3739 Float_t *normdist = new Float_t[ntracks+2];
3740 Float_t *norm = new Float_t[ntracks+2];
3741 Float_t *maxr = new Float_t[ntracks+2];
3742 Float_t *minr = new Float_t[ntracks+2];
3743 Float_t *minPointAngle= new Float_t[ntracks+2];
3744 //
6c94f330 3745 AliV0 *pvertex = new AliV0;
81e97e0d 3746 AliITStrackMI * dummy= new AliITStrackMI;
3747 dummy->SetLabel(0);
3748 AliITStrackMI trackat0; //temporary track for DCA calculation
e43c066c 3749 //
81e97e0d 3750 Float_t primvertex[3]={GetX(),GetY(),GetZ()};
628e7bb0 3751 //
afd25725 3752 // make ITS - ESD map
e43c066c 3753 //
81e97e0d 3754 for (Int_t itrack=0;itrack<ntracks+2;itrack++) {
3755 itsmap[itrack] = -1;
3756 forbidden[itrack] = kFALSE;
3757 maxr[itrack] = kMaxR;
3758 minr[itrack] = kMinR;
3759 minPointAngle[itrack] = kMinPointAngle;
3760 }
3761 for (Int_t itrack=0;itrack<nitstracks;itrack++){
3762 AliITStrackMI * original = (AliITStrackMI*)(fOriginal.At(itrack));
b9671574 3763 Int_t esdindex = original->GetESDtrack()->GetID();
81e97e0d 3764 itsmap[esdindex] = itrack;
3765 }
3766 //
afd25725 3767 // create ITS tracks from ESD tracks if not done before
81e97e0d 3768 //
3769 for (Int_t itrack=0;itrack<ntracks;itrack++){
3770 if (itsmap[itrack]>=0) continue;
3771 AliITStrackMI * tpctrack = new AliITStrackMI(*(event->GetTrack(itrack)));
791f9a2a 3772 //tpctrack->fD[0] = tpctrack->GetD(GetX(),GetY());
3773 //tpctrack->fD[1] = tpctrack->GetZat(GetX())-GetZ();
b9671574 3774 tpctrack->GetDZ(GetX(),GetY(),GetZ(),tpctrack->GetDP()); //I.B.
3775 if (tpctrack->GetD(0)<20 && tpctrack->GetD(1)<20){
81e97e0d 3776 // tracks which can reach inner part of ITS
3777 // propagate track to outer its volume - with correction for material
afd25725 3778 CorrectForTPCtoITSDeadZoneMaterial(tpctrack);
81e97e0d 3779 }
3780 itsmap[itrack] = nitstracks;
3781 fOriginal.AddAt(tpctrack,nitstracks);
3782 nitstracks++;
3783 }
3784 //
3785 // fill temporary arrays
3786 //
3787 for (Int_t itrack=0;itrack<ntracks;itrack++){
3788 AliESDtrack * esdtrack = event->GetTrack(itrack);
3789 Int_t itsindex = itsmap[itrack];
3790 AliITStrackMI *original = (AliITStrackMI*)fOriginal.At(itsmap[itrack]);
3791 if (!original) continue;
3792 AliITStrackMI *bestConst = 0;
3793 AliITStrackMI *bestLong = 0;
3794 AliITStrackMI *best = 0;
3795 //
628e7bb0 3796 //
81e97e0d 3797 TObjArray * array = (TObjArray*) fTrackHypothesys.At(itsindex);
3798 Int_t hentries = (array==0) ? 0 : array->GetEntriesFast();
3799 // Get best track with vertex constrain
628e7bb0 3800 for (Int_t ih=0;ih<hentries;ih++){
3801 AliITStrackMI * trackh = (AliITStrackMI*)array->At(ih);
b9671574 3802 if (!trackh->GetConstrain()) continue;
81e97e0d 3803 if (!bestConst) bestConst = trackh;
b9671574 3804 if (trackh->GetNumberOfClusters()>5.0){
81e97e0d 3805 bestConst = trackh; // full track - with minimal chi2
3806 break;
3807 }
b9671574 3808 if (trackh->GetNumberOfClusters()+trackh->GetNDeadZone()<=bestConst->GetNumberOfClusters()+bestConst->GetNDeadZone()) continue;
81e97e0d 3809 bestConst = trackh;
628e7bb0 3810 break;
81e97e0d 3811 }
3812 // Get best long track without vertex constrain and best track without vertex constrain
628e7bb0 3813 for (Int_t ih=0;ih<hentries;ih++){
3814 AliITStrackMI * trackh = (AliITStrackMI*)array->At(ih);
b9671574 3815 if (trackh->GetConstrain()) continue;
81e97e0d 3816 if (!best) best = trackh;
3817 if (!bestLong) bestLong = trackh;
b9671574 3818 if (trackh->GetNumberOfClusters()>5.0){
81e97e0d 3819 bestLong = trackh; // full track - with minimal chi2
3820 break;
3821 }
b9671574 3822 if (trackh->GetNumberOfClusters()+trackh->GetNDeadZone()<=bestLong->GetNumberOfClusters()+bestLong->GetNDeadZone()) continue;
81e97e0d 3823 bestLong = trackh;
628e7bb0 3824 }
81e97e0d 3825 if (!best) {
3826 best = original;
3827 bestLong = original;
628e7bb0 3828 }
6c94f330 3829 //I.B. trackat0 = *bestLong;
420c3064 3830 new (&trackat0) AliITStrackMI(*bestLong);
81e97e0d 3831 Double_t xx,yy,zz,alpha;
3832 bestLong->GetGlobalXYZat(bestLong->GetX(),xx,yy,zz);
3833 alpha = TMath::ATan2(yy,xx);
3834 trackat0.Propagate(alpha,0);
3835 // calculate normalized distances to the vertex
628e7bb0 3836 //
6c94f330 3837 Float_t ptfac = (1.+100.*TMath::Abs(trackat0.GetC()));
b9671574 3838 if ( bestLong->GetNumberOfClusters()>3 ){
6c94f330 3839 dist[itsindex] = trackat0.GetY();
3840 norm[itsindex] = ptfac*TMath::Sqrt(trackat0.GetSigmaY2());
3841 normdist0[itsindex] = TMath::Abs(trackat0.GetY()/norm[itsindex]);
3842 normdist1[itsindex] = TMath::Abs((trackat0.GetZ()-primvertex[2])/(ptfac*TMath::Sqrt(trackat0.GetSigmaZ2())));
81e97e0d 3843 normdist[itsindex] = TMath::Sqrt(normdist0[itsindex]*normdist0[itsindex]+normdist1[itsindex]*normdist1[itsindex]);
29641977 3844 if (!bestConst){
b9671574 3845 if (bestLong->GetNumberOfClusters()+bestLong->GetNDeadZone()<6) normdist[itsindex]*=2.;
3846 if (bestLong->GetNumberOfClusters()+bestLong->GetNDeadZone()<5) normdist[itsindex]*=2.;
3847 if (bestLong->GetNumberOfClusters()+bestLong->GetNDeadZone()<4) normdist[itsindex]*=2.;
29641977 3848 }else{
b9671574 3849 if (bestConst->GetNumberOfClusters()+bestConst->GetNDeadZone()<6) normdist[itsindex]*=1.5;
3850 if (bestConst->GetNumberOfClusters()+bestConst->GetNDeadZone()<5) normdist[itsindex]*=1.5;
29641977 3851 }
81e97e0d 3852 }
3853 else{
b9671574 3854 if (bestConst&&bestConst->GetNumberOfClusters()+bestConst->GetNDeadZone()>4.5){
3855 dist[itsindex] = bestConst->GetD(0);
3856 norm[itsindex] = bestConst->GetDnorm(0);
3857 normdist0[itsindex] = TMath::Abs(bestConst->GetD(0)/norm[itsindex]);
3858 normdist1[itsindex] = TMath::Abs(bestConst->GetD(0)/norm[itsindex]);
81e97e0d 3859 normdist[itsindex] = TMath::Sqrt(normdist0[itsindex]*normdist0[itsindex]+normdist1[itsindex]*normdist1[itsindex]);
3860 }else{
6c94f330 3861 dist[itsindex] = trackat0.GetY();
3862 norm[itsindex] = ptfac*TMath::Sqrt(trackat0.GetSigmaY2());
3863 normdist0[itsindex] = TMath::Abs(trackat0.GetY()/norm[itsindex]);
3864 normdist1[itsindex] = TMath::Abs((trackat0.GetZ()-primvertex[2])/(ptfac*TMath::Sqrt(trackat0.GetSigmaZ2())));
81e97e0d 3865 normdist[itsindex] = TMath::Sqrt(normdist0[itsindex]*normdist0[itsindex]+normdist1[itsindex]*normdist1[itsindex]);
6c94f330 3866 if (TMath::Abs(trackat0.GetTgl())>1.05){
67c1e979 3867 if (normdist[itsindex]<3) forbidden[itsindex]=kTRUE;
3868 if (normdist[itsindex]>3) {
3869 minr[itsindex] = TMath::Max(Float_t(40.),minr[itsindex]);
3870 }
81e97e0d 3871 }
3872 }
3873 }
628e7bb0 3874 //
81e97e0d 3875 //-----------------------------------------------------------
3876 //Forbid primary track candidates -
628e7bb0 3877 //
81e97e0d 3878 //treetr->SetAlias("forbidden0","Tr0.fN<4&&Tr1.fN+Tr1.fNDeadZone>4.5");
3879 //treetr->SetAlias("forbidden1","ND<3&&Tr1.fN+Tr1.fNDeadZone>5.5");
3880 //treetr->SetAlias("forbidden2","ND<2&&Tr1.fClIndex[0]>0&&Tr1.fClIndex[0]>0");
3881 //treetr->SetAlias("forbidden3","ND<1&&Tr1.fClIndex[0]>0");
3882 //treetr->SetAlias("forbidden4","ND<4&&Tr1.fNormChi2[0]<2");
3883 //treetr->SetAlias("forbidden5","ND<5&&Tr1.fNormChi2[0]<1");
3884 //-----------------------------------------------------------
3885 if (bestConst){
b9671574 3886 if (bestLong->GetNumberOfClusters()<4 && bestConst->GetNumberOfClusters()+bestConst->GetNDeadZone()>4.5) forbidden[itsindex]=kTRUE;
3887 if (normdist[itsindex]<3 && bestConst->GetNumberOfClusters()+bestConst->GetNDeadZone()>5.5) forbidden[itsindex]=kTRUE;
3888 if (normdist[itsindex]<2 && bestConst->GetClIndex(0)>0 && bestConst->GetClIndex(1)>0 ) forbidden[itsindex]=kTRUE;
3889 if (normdist[itsindex]<1 && bestConst->GetClIndex(0)>0) forbidden[itsindex]=kTRUE;
3890 if (normdist[itsindex]<4 && bestConst->GetNormChi2(0)<2) forbidden[itsindex]=kTRUE;
3891 if (normdist[itsindex]<5 && bestConst->GetNormChi2(0)<1) forbidden[itsindex]=kTRUE;
3892 if (bestConst->GetNormChi2(0)<2.5) {
81e97e0d 3893 minPointAngle[itsindex]= 0.9999;
3894 maxr[itsindex] = 10;
628e7bb0 3895 }
e43c066c 3896 }
81e97e0d 3897 //
3898 //forbid daughter kink candidates
3899 //
3900 if (esdtrack->GetKinkIndex(0)>0) forbidden[itsindex] = kTRUE;
3901 Bool_t isElectron = kTRUE;
29641977 3902 Bool_t isProton = kTRUE;
81e97e0d 3903 Double_t pid[5];
3904 esdtrack->GetESDpid(pid);
3905 for (Int_t i=1;i<5;i++){
3906 if (pid[0]<pid[i]) isElectron= kFALSE;
29641977 3907 if (pid[4]<pid[i]) isProton= kFALSE;
81e97e0d 3908 }
3909 if (isElectron){
3910 forbidden[itsindex]=kFALSE;
29641977 3911 normdist[itsindex]*=-1;
3912 }
3913 if (isProton){
3914 if (normdist[itsindex]>2) forbidden[itsindex]=kFALSE;
3915 normdist[itsindex]*=-1;
81e97e0d 3916 }
29641977 3917
81e97e0d 3918 //
3919 // Causality cuts in TPC volume
3920 //
3921 if (esdtrack->GetTPCdensity(0,10) >0.6) maxr[itsindex] = TMath::Min(Float_t(110),maxr[itsindex]);
3922 if (esdtrack->GetTPCdensity(10,30)>0.6) maxr[itsindex] = TMath::Min(Float_t(120),maxr[itsindex]);
3923 if (esdtrack->GetTPCdensity(20,40)>0.6) maxr[itsindex] = TMath::Min(Float_t(130),maxr[itsindex]);
3924 if (esdtrack->GetTPCdensity(30,50)>0.6) maxr[itsindex] = TMath::Min(Float_t(140),maxr[itsindex]);
3925 //
b9671574 3926 if (esdtrack->GetTPCdensity(0,60)<0.4&&bestLong->GetNumberOfClusters()<3) minr[itsindex]=100;
81e97e0d 3927 //
3928 //
29641977 3929 if (kFALSE){
81e97e0d 3930 cstream<<"Track"<<
3931 "Tr0.="<<best<<
3932 "Tr1.="<<((bestConst)? bestConst:dummy)<<
3933 "Tr2.="<<bestLong<<
3934 "Tr3.="<<&trackat0<<
3935 "Esd.="<<esdtrack<<
3936 "Dist="<<dist[itsindex]<<
3937 "ND0="<<normdist0[itsindex]<<
3938 "ND1="<<normdist1[itsindex]<<
3939 "ND="<<normdist[itsindex]<<
3940 "Pz="<<primvertex[2]<<
3941 "Forbid="<<forbidden[itsindex]<<
3942 "\n";
3943 //
3944 }
3945 trackarray.AddAt(best,itsindex);
3946 trackarrayc.AddAt(bestConst,itsindex);
3947 trackarrayl.AddAt(bestLong,itsindex);
3948 new (&helixes[itsindex]) AliHelix(*best);
e43c066c 3949 }
628e7bb0 3950 //
3951 //
81e97e0d 3952 //
3953 // first iterration of V0 finder
3954 //
3955 for (Int_t iesd0=0;iesd0<ntracks;iesd0++){
3956 Int_t itrack0 = itsmap[iesd0];
3957 if (forbidden[itrack0]) continue;
3958 AliITStrackMI * btrack0 = (AliITStrackMI*)trackarray.At(itrack0);
3959 if (!btrack0) continue;
420c3064 3960 if (btrack0->GetSign()>0) continue;
628e7bb0 3961 AliITStrackMI *trackc0 = (AliITStrackMI*)trackarrayc.At(itrack0);
3962 //
81e97e0d 3963 for (Int_t iesd1=0;iesd1<ntracks;iesd1++){
3964 Int_t itrack1 = itsmap[iesd1];
3965 if (forbidden[itrack1]) continue;
3966
3967 AliITStrackMI * btrack1 = (AliITStrackMI*)trackarray.At(itrack1);
3968 if (!btrack1) continue;
420c3064 3969 if (btrack1->GetSign()<0) continue;
81e97e0d 3970 Bool_t isGold = kFALSE;
3971 if (TMath::Abs(TMath::Abs(btrack0->GetLabel())-TMath::Abs(btrack1->GetLabel()))==1){
3972 isGold = kTRUE;
628e7bb0 3973 }
81e97e0d 3974 AliITStrackMI *trackc1 = (AliITStrackMI*)trackarrayc.At(itrack1);
3975 AliHelix &h1 = helixes[itrack0];
3976 AliHelix &h2 = helixes[itrack1];
628e7bb0 3977 //
81e97e0d 3978 // find linear distance
3979 Double_t rmin =0;
628e7bb0 3980 //
51ad6848 3981 //
51ad6848 3982 //
81e97e0d 3983 Double_t phase[2][2],radius[2];
3984 Int_t points = h1.GetRPHIintersections(h2, phase, radius);
3985 if (points==0) continue;
c49fe0bf 3986 Double_t delta[2]={1000000,1000000};
81e97e0d 3987 rmin = radius[0];
3988 h1.ParabolicDCA(h2,phase[0][0],phase[0][1],radius[0],delta[0]);
3989 if (points==2){
3990 if (radius[1]<rmin) rmin = radius[1];
3991 h1.ParabolicDCA(h2,phase[1][0],phase[1][1],radius[1],delta[1]);
3992 }
3993 rmin = TMath::Sqrt(rmin);
3994 Double_t distance = 0;
3995 Double_t radiusC = 0;
3996 Int_t iphase = 0;
c49fe0bf 3997 if (points==1 || delta[0]<delta[1]){
81e97e0d 3998 distance = TMath::Sqrt(delta[0]);
3999 radiusC = TMath::Sqrt(radius[0]);
4000 }else{
4001 distance = TMath::Sqrt(delta[1]);
4002 radiusC = TMath::Sqrt(radius[1]);
4003 iphase=1;
4004 }
4005 if (radiusC<TMath::Max(minr[itrack0],minr[itrack1])) continue;
4006 if (radiusC>TMath::Min(maxr[itrack0],maxr[itrack1])) continue;
4007 Float_t maxDist = TMath::Min(kMaxDist,Float_t(kMaxDist0+radiusC*kMaxDist1));
4008 if (distance>maxDist) continue;
4009 Float_t pointAngle = h1.GetPointAngle(h2,phase[iphase],primvertex);
4010 if (pointAngle<TMath::Max(minPointAngle[itrack0],minPointAngle[itrack1])) continue;
628e7bb0 4011 //
51ad6848 4012 //
81e97e0d 4013 // Double_t distance = TestV0(h1,h2,pvertex,rmin);
51ad6848 4014 //
81e97e0d 4015 // if (distance>maxDist) continue;
4016 // if (pvertex->GetRr()<kMinR) continue;
4017 // if (pvertex->GetRr()>kMaxR) continue;
4018 AliITStrackMI * track0=btrack0;
4019 AliITStrackMI * track1=btrack1;
4020 // if (pvertex->GetRr()<3.5){
4021 if (radiusC<3.5){
4022 //use longest tracks inside the pipe
4023 track0 = (AliITStrackMI*)trackarrayl.At(itrack0);
4024 track1 = (AliITStrackMI*)trackarrayl.At(itrack1);
4025 }
51ad6848 4026 //
4027 //
b75d63a7 4028 pvertex->SetParamN(*track0);
4029 pvertex->SetParamP(*track1);
81e97e0d 4030 pvertex->Update(primvertex);
b9671574 4031 pvertex->SetClusters(track0->ClIndex(),track1->ClIndex()); // register clusters
67c1e979 4032
81e97e0d 4033 if (pvertex->GetRr()<kMinR) continue;
4034 if (pvertex->GetRr()>kMaxR) continue;
b75d63a7 4035 if (pvertex->GetV0CosineOfPointingAngle()<kMinPointAngle) continue;
4036//Bo: if (pvertex->GetDist2()>maxDist) continue;
4037 if (pvertex->GetDcaV0Daughters()>maxDist) continue;
4038//Bo: pvertex->SetLab(0,track0->GetLabel());
4039//Bo: pvertex->SetLab(1,track1->GetLabel());
b9671574 4040 pvertex->SetIndex(0,track0->GetESDtrack()->GetID());
4041 pvertex->SetIndex(1,track1->GetESDtrack()->GetID());
81e97e0d 4042 //
4043 AliITStrackMI * htrackc0 = trackc0 ? trackc0:dummy;
4044 AliITStrackMI * htrackc1 = trackc1 ? trackc1:dummy;
51ad6848 4045
81e97e0d 4046 //
4047 //
4048 TObjArray * array0b = (TObjArray*)fBestHypothesys.At(itrack0);
513ab112 4049 if (!array0b&&pvertex->GetRr()<40 && TMath::Abs(track0->GetTgl())<1.1) {
4050 fCurrentEsdTrack = itrack0;
81e97e0d 4051 FollowProlongationTree((AliITStrackMI*)fOriginal.At(itrack0),itrack0, kFALSE);
513ab112 4052 }
81e97e0d 4053 TObjArray * array1b = (TObjArray*)fBestHypothesys.At(itrack1);
513ab112 4054 if (!array1b&&pvertex->GetRr()<40 && TMath::Abs(track1->GetTgl())<1.1) {
4055 fCurrentEsdTrack = itrack1;
81e97e0d 4056 FollowProlongationTree((AliITStrackMI*)fOriginal.At(itrack1),itrack1, kFALSE);
513ab112 4057 }
81e97e0d 4058 //
4059 AliITStrackMI * track0b = (AliITStrackMI*)fOriginal.At(itrack0);
4060 AliITStrackMI * track1b = (AliITStrackMI*)fOriginal.At(itrack1);
4061 AliITStrackMI * track0l = (AliITStrackMI*)fOriginal.At(itrack0);
4062 AliITStrackMI * track1l = (AliITStrackMI*)fOriginal.At(itrack1);
4063
4064 Float_t minchi2before0=16;
4065 Float_t minchi2before1=16;
4066 Float_t minchi2after0 =16;
4067 Float_t minchi2after1 =16;
b75d63a7 4068 Double_t xrp[3]; pvertex->GetXYZ(xrp[0],xrp[1],xrp[2]); //I.B.
4069 Int_t maxLayer = GetNearestLayer(xrp); //I.B.
81e97e0d 4070
4071 if (array0b) for (Int_t i=0;i<5;i++){
4072 // best track after vertex
4073 AliITStrackMI * btrack = (AliITStrackMI*)array0b->At(i);
4074 if (!btrack) continue;
b9671574 4075 if (btrack->GetNumberOfClusters()>track0l->GetNumberOfClusters()) track0l = btrack;
29641977 4076 // if (btrack->fX<pvertex->GetRr()-2.-0.5/(0.1+pvertex->GetAnglep()[2])) {
6c94f330 4077 if (btrack->GetX()<pvertex->GetRr()-2.) {
b9671574 4078 if ( (maxLayer>i+2|| (i==0)) && btrack->GetNumberOfClusters()==(6-i)&&i<3){
81e97e0d 4079 Float_t sumchi2= 0;
4080 Float_t sumn = 0;
29641977 4081 if (maxLayer<3){ // take prim vertex as additional measurement
4082 if (normdist[itrack0]>0 && htrackc0){
97f754fa 4083 sumchi2 += TMath::Min((3.-maxLayer)*normdist[itrack0]*normdist[itrack0],16.);
29641977 4084 }else{
97f754fa 4085 sumchi2 += TMath::Min((3.-maxLayer)*(3*normdist[itrack0]*normdist[itrack0]+3.),16.);
29641977 4086 }
4087 sumn += 3-maxLayer;
4088 }
81e97e0d 4089 for (Int_t ilayer=i;ilayer<maxLayer;ilayer++){
97f754fa 4090 sumn+=1.;
b9671574 4091 if (!btrack->GetClIndex(ilayer)){
81e97e0d 4092 sumchi2+=25;
4093 continue;
4094 }else{
b9671574 4095 Int_t c=( btrack->GetClIndex(ilayer) & 0x0fffffff);
97f754fa 4096 for (Int_t itrack=0;itrack<4;itrack++){
b9671574 4097 if (fgLayers[ilayer].GetClusterTracks(itrack,c)>=0 && fgLayers[ilayer].GetClusterTracks(itrack,c)!=itrack0){
97f754fa 4098 sumchi2+=18.; //shared cluster
4099 break;
4100 }
4101 }
b9671574 4102 sumchi2+=btrack->GetDy(ilayer)*btrack->GetDy(ilayer)/(btrack->GetSigmaY(ilayer)*btrack->GetSigmaY(ilayer));
4103 sumchi2+=btrack->GetDz(ilayer)*btrack->GetDz(ilayer)/(btrack->GetSigmaZ(ilayer)*btrack->GetSigmaZ(ilayer));
81e97e0d 4104 }
4105 }
4106 sumchi2/=sumn;
4107 if (sumchi2<minchi2before0) minchi2before0=sumchi2;
51ad6848 4108 }
81e97e0d 4109 continue; //safety space - Geo manager will give exact layer
51ad6848 4110 }
81e97e0d 4111 track0b = btrack;
b9671574 4112 minchi2after0 = btrack->GetNormChi2(i);
81e97e0d 4113 break;
4114 }
4115 if (array1b) for (Int_t i=0;i<5;i++){
4116 // best track after vertex
4117 AliITStrackMI * btrack = (AliITStrackMI*)array1b->At(i);
4118 if (!btrack) continue;
b9671574 4119 if (btrack->GetNumberOfClusters()>track1l->GetNumberOfClusters()) track1l = btrack;
29641977 4120 // if (btrack->fX<pvertex->GetRr()-2-0.5/(0.1+pvertex->GetAnglep()[2])){
6c94f330 4121 if (btrack->GetX()<pvertex->GetRr()-2){
b9671574 4122 if ((maxLayer>i+2 || (i==0))&&btrack->GetNumberOfClusters()==(6-i)&&(i<3)){
81e97e0d 4123 Float_t sumchi2= 0;
4124 Float_t sumn = 0;
29641977 4125 if (maxLayer<3){ // take prim vertex as additional measurement
4126 if (normdist[itrack1]>0 && htrackc1){
97f754fa 4127 sumchi2 += TMath::Min((3.-maxLayer)*normdist[itrack1]*normdist[itrack1],16.);
29641977 4128 }else{
97f754fa 4129 sumchi2 += TMath::Min((3.-maxLayer)*(3*normdist[itrack1]*normdist[itrack1]+3.),16.);
29641977 4130 }
4131 sumn += 3-maxLayer;
4132 }
81e97e0d 4133 for (Int_t ilayer=i;ilayer<maxLayer;ilayer++){
4134 sumn+=1.;
b9671574 4135 if (!btrack->GetClIndex(ilayer)){
81e97e0d 4136 sumchi2+=30;
4137 continue;
4138 }else{
b9671574 4139 Int_t c=( btrack->GetClIndex(ilayer) & 0x0fffffff);
97f754fa 4140 for (Int_t itrack=0;itrack<4;itrack++){
b9671574 4141 if (fgLayers[ilayer].GetClusterTracks(itrack,c)>=0 && fgLayers[ilayer].GetClusterTracks(itrack,c)!=itrack1){
97f754fa 4142 sumchi2+=18.; //shared cluster
4143 break;
4144 }
4145 }
b9671574 4146 sumchi2+=btrack->GetDy(ilayer)*btrack->GetDy(ilayer)/(btrack->GetSigmaY(ilayer)*btrack->GetSigmaY(ilayer));
4147 sumchi2+=btrack->GetDz(ilayer)*btrack->GetDz(ilayer)/(btrack->GetSigmaZ(ilayer)*btrack->GetSigmaZ(ilayer));
81e97e0d 4148 }
4149 }
4150 sumchi2/=sumn;
4151 if (sumchi2<minchi2before1) minchi2before1=sumchi2;
51ad6848 4152 }
81e97e0d 4153 continue; //safety space - Geo manager will give exact layer
51ad6848 4154 }
81e97e0d 4155 track1b = btrack;
b9671574 4156 minchi2after1 = btrack->GetNormChi2(i);
81e97e0d 4157 break;
e43c066c 4158 }
628e7bb0 4159 //
81e97e0d 4160 // position resolution - used for DCA cut
6c94f330 4161 Float_t sigmad = track0b->GetSigmaY2()+track0b->GetSigmaZ2()+track1b->GetSigmaY2()+track1b->GetSigmaZ2()+
4162 (track0b->GetX()-pvertex->GetRr())*(track0b->GetX()-pvertex->GetRr())*(track0b->GetSigmaSnp2()+track0b->GetSigmaTgl2())+
4163 (track1b->GetX()-pvertex->GetRr())*(track1b->GetX()-pvertex->GetRr())*(track1b->GetSigmaSnp2()+track1b->GetSigmaTgl2());
81e97e0d 4164 sigmad =TMath::Sqrt(sigmad)+0.04;
4165 if (pvertex->GetRr()>50){
4166 Double_t cov0[15],cov1[15];
b9671574 4167 track0b->GetESDtrack()->GetInnerExternalCovariance(cov0);
4168 track1b->GetESDtrack()->GetInnerExternalCovariance(cov1);
81e97e0d 4169 sigmad = cov0[0]+cov0[2]+cov1[0]+cov1[2]+
4170 (80.-pvertex->GetRr())*(80.-pvertex->GetRr())*(cov0[5]+cov0[9])+
4171 (80.-pvertex->GetRr())*(80.-pvertex->GetRr())*(cov1[5]+cov1[9]);
4172 sigmad =TMath::Sqrt(sigmad)+0.05;
4173 }
4174 //
6c94f330 4175 AliV0 vertex2;
b75d63a7 4176 vertex2.SetParamN(*track0b);
4177 vertex2.SetParamP(*track1b);
81e97e0d 4178 vertex2.Update(primvertex);
b75d63a7 4179 //Bo: if (vertex2.GetDist2()<=pvertex->GetDist2()&&(vertex2.GetV0CosineOfPointingAngle()>=pvertex->GetV0CosineOfPointingAngle())){
4180 if (vertex2.GetDcaV0Daughters()<=pvertex->GetDcaV0Daughters()&&(vertex2.GetV0CosineOfPointingAngle()>=pvertex->GetV0CosineOfPointingAngle())){
4181 pvertex->SetParamN(*track0b);
4182 pvertex->SetParamP(*track1b);
81e97e0d 4183 pvertex->Update(primvertex);
b9671574 4184 pvertex->SetClusters(track0b->ClIndex(),track1b->ClIndex()); // register clusters
4185 pvertex->SetIndex(0,track0->GetESDtrack()->GetID());
4186 pvertex->SetIndex(1,track1->GetESDtrack()->GetID());
81e97e0d 4187 }
4188 pvertex->SetDistSigma(sigmad);
b75d63a7 4189 //Bo: pvertex->SetDistNorm(pvertex->GetDist2()/sigmad);
29641977 4190 pvertex->SetNormDCAPrim(normdist[itrack0],normdist[itrack1]);
628e7bb0 4191 //
81e97e0d 4192 // define likelihhod and causalities
628e7bb0 4193 //
81e97e0d 4194 Float_t pa0=1, pa1=1, pb0=0.26, pb1=0.26;
29641977 4195 if (maxLayer<1){
4196 Float_t fnorm0 = normdist[itrack0];
4197 if (fnorm0<0) fnorm0*=-3;
4198 Float_t fnorm1 = normdist[itrack1];
4199 if (fnorm1<0) fnorm1*=-3;
4200 if (pvertex->GetAnglep()[2]>0.1 || (pvertex->GetRr()<10.5)&& pvertex->GetAnglep()[2]>0.05 || pvertex->GetRr()<3){
4201 pb0 = TMath::Exp(-TMath::Min(fnorm0,Float_t(16.))/12.);
4202 pb1 = TMath::Exp(-TMath::Min(fnorm1,Float_t(16.))/12.);
67c1e979 4203 }
81e97e0d 4204 pvertex->SetChi2Before(normdist[itrack0]);
4205 pvertex->SetChi2After(normdist[itrack1]);
4206 pvertex->SetNAfter(0);
4207 pvertex->SetNBefore(0);
4208 }else{
4209 pvertex->SetChi2Before(minchi2before0);
4210 pvertex->SetChi2After(minchi2before1);
29641977 4211 if (pvertex->GetAnglep()[2]>0.1 || ( pvertex->GetRr()<10.5 && pvertex->GetAnglep()[2]>0.05) || pvertex->GetRr()<3){
4212 pb0 = TMath::Exp(-TMath::Min(minchi2before0,Float_t(16))/12.);
4213 pb1 = TMath::Exp(-TMath::Min(minchi2before1,Float_t(16))/12.);
4214 }
4215 pvertex->SetNAfter(maxLayer);
4216 pvertex->SetNBefore(maxLayer);
628e7bb0 4217 }
81e97e0d 4218 if (pvertex->GetRr()<90){
f941f7fa 4219 pa0 *= TMath::Min(track0->GetESDtrack()->GetTPCdensity(0,60),Double_t(1.));
4220 pa1 *= TMath::Min(track1->GetESDtrack()->GetTPCdensity(0,60),Double_t(1.));
628e7bb0 4221 }
81e97e0d 4222 if (pvertex->GetRr()<20){
4223 pa0 *= (0.2+TMath::Exp(-TMath::Min(minchi2after0,Float_t(16))/8.))/1.2;
4224 pa1 *= (0.2+TMath::Exp(-TMath::Min(minchi2after1,Float_t(16))/8.))/1.2;
e43c066c 4225 }
628e7bb0 4226 //
81e97e0d 4227 pvertex->SetCausality(pb0,pb1,pa0,pa1);
628e7bb0 4228 //
81e97e0d 4229 // Likelihood calculations - apply cuts
4230 //
4231 Bool_t v0OK = kTRUE;
4232 Float_t p12 = pvertex->GetParamP()->GetParameter()[4]*pvertex->GetParamP()->GetParameter()[4];
b75d63a7 4233 p12 += pvertex->GetParamN()->GetParameter()[4]*pvertex->GetParamN()->GetParameter()[4];
81e97e0d 4234 p12 = TMath::Sqrt(p12); // "mean" momenta
4235 Float_t sigmap0 = 0.0001+0.001/(0.1+pvertex->GetRr());
4236 Float_t sigmap = 0.5*sigmap0*(0.6+0.4*p12); // "resolution: of point angle - as a function of radius and momenta
4237
bf6adc12 4238 Float_t causalityA = (1.0-pvertex->GetCausalityP()[0])*(1.0-pvertex->GetCausalityP()[1]);
f941f7fa 4239 Float_t causalityB = TMath::Sqrt(TMath::Min(pvertex->GetCausalityP()[2],Double_t(0.7))*
4240 TMath::Min(pvertex->GetCausalityP()[3],Double_t(0.7)));
628e7bb0 4241 //
b75d63a7 4242 //Bo: Float_t likelihood0 = (TMath::Exp(-pvertex->GetDistNorm())+0.1) *(pvertex->GetDist2()<0.5)*(pvertex->GetDistNorm()<5);
4243 Float_t lDistNorm = pvertex->GetDcaV0Daughters()/pvertex->GetDistSigma();
4244 Float_t likelihood0 = (TMath::Exp(-lDistNorm)+0.1) *(pvertex->GetDcaV0Daughters()<0.5)*(lDistNorm<5);
4245
4246 Float_t likelihood1 = TMath::Exp(-(1.0001-pvertex->GetV0CosineOfPointingAngle())/sigmap)+
4247 0.4*TMath::Exp(-(1.0001-pvertex->GetV0CosineOfPointingAngle())/(4.*sigmap))+
4248 0.4*TMath::Exp(-(1.0001-pvertex->GetV0CosineOfPointingAngle())/(8.*sigmap))+
4249 0.1*TMath::Exp(-(1.0001-pvertex->GetV0CosineOfPointingAngle())/0.01);
628e7bb0 4250 //
bf6adc12 4251 if (causalityA<kCausality0Cut) v0OK = kFALSE;
4252 if (TMath::Sqrt(likelihood0*likelihood1)<kLikelihood01Cut) v0OK = kFALSE;
4253 if (likelihood1<kLikelihood1Cut) v0OK = kFALSE;
4254 if (TMath::Power(likelihood0*likelihood1*causalityB,0.33)<kCombinedCut) v0OK = kFALSE;
81e97e0d 4255
628e7bb0 4256 //
628e7bb0 4257 //
67c1e979 4258 if (kFALSE){
81e97e0d 4259 Bool_t gold = TMath::Abs(TMath::Abs(track0->GetLabel())-TMath::Abs(track1->GetLabel()))==1;
4260 cstream<<"It0"<<
4261 "Tr0.="<<track0<< //best without constrain
4262 "Tr1.="<<track1<< //best without constrain
4263 "Tr0B.="<<track0b<< //best without constrain after vertex
4264 "Tr1B.="<<track1b<< //best without constrain after vertex
4265 "Tr0C.="<<htrackc0<< //best with constrain if exist
4266 "Tr1C.="<<htrackc1<< //best with constrain if exist
4267 "Tr0L.="<<track0l<< //longest best
4268 "Tr1L.="<<track1l<< //longest best
b9671574 4269 "Esd0.="<<track0->GetESDtrack()<< // esd track0 params
4270 "Esd1.="<<track1->GetESDtrack()<< // esd track1 params
81e97e0d 4271 "V0.="<<pvertex<< //vertex properties
4272 "V0b.="<<&vertex2<< //vertex properties at "best" track
4273 "ND0="<<normdist[itrack0]<< //normalize distance for track0
4274 "ND1="<<normdist[itrack1]<< //normalize distance for track1
4275 "Gold="<<gold<< //
4276 // "RejectBase="<<rejectBase<< //rejection in First itteration
4277 "OK="<<v0OK<<
4278 "rmin="<<rmin<<
4279 "sigmad="<<sigmad<<
4280 "\n";
4281 }
4282 //if (rejectBase) continue;
628e7bb0 4283 //
81e97e0d 4284 pvertex->SetStatus(0);
4285 // if (rejectBase) {
4286 // pvertex->SetStatus(-100);
4287 //}
b75d63a7 4288 if (pvertex->GetV0CosineOfPointingAngle()>kMinPointAngle2) {
4289 //Bo: pvertex->SetESDindexes(track0->GetESDtrack()->GetID(),track1->GetESDtrack()->GetID());
4290 pvertex->SetIndex(0,track0->GetESDtrack()->GetID());//Bo: consistency 0 for neg
4291 pvertex->SetIndex(1,track1->GetESDtrack()->GetID());//Bo: consistency 1 for pos
67c1e979 4292 if (v0OK){
4293 // AliV0vertex vertexjuri(*track0,*track1);
4294 // vertexjuri.SetESDindexes(track0->fESDtrack->GetID(),track1->fESDtrack->GetID());
4295 // event->AddV0(&vertexjuri);
81e97e0d 4296 pvertex->SetStatus(100);
4297 }
d6a49f20 4298 pvertex->SetOnFlyStatus(kTRUE);
b75d63a7 4299 pvertex->ChangeMassHypothesis(kK0Short);
d6a49f20 4300 event->AddV0(pvertex);
628e7bb0 4301 }
51ad6848 4302 }
4303 }
628e7bb0 4304 //
4305 //
81e97e0d 4306 // delete temporary arrays
4307 //
316c6cd9 4308 delete[] forbidden;
81e97e0d 4309 delete[] minPointAngle;
4310 delete[] maxr;
4311 delete[] minr;
4312 delete[] norm;
4313 delete[] normdist;
4314 delete[] normdist1;
4315 delete[] normdist0;
4316 delete[] dist;
4317 delete[] itsmap;
4318 delete[] helixes;
4319 delete pvertex;
e43c066c 4320}
44347160 4321//------------------------------------------------------------------------
af885e0f 4322void AliITStrackerMI::RefitV02(AliESDEvent *event)
67c1e979 4323{
4324 //
4325 //try to refit V0s in the third path of the reconstruction
4326 //
4327 TTreeSRedirector &cstream = *fDebugStreamer;
4328 //
d6a49f20 4329 Int_t nv0s = event->GetNumberOfV0s();
67c1e979 4330 Float_t primvertex[3]={GetX(),GetY(),GetZ()};
6c94f330 4331 AliV0 v0temp;
67c1e979 4332 for (Int_t iv0 = 0; iv0<nv0s;iv0++){
d6a49f20 4333 AliV0 * v0mi = (AliV0*)event->GetV0(iv0);
67c1e979 4334 if (!v0mi) continue;
4335 Int_t itrack0 = v0mi->GetIndex(0);
4336 Int_t itrack1 = v0mi->GetIndex(1);
4337 AliESDtrack *esd0 = event->GetTrack(itrack0);
4338 AliESDtrack *esd1 = event->GetTrack(itrack1);
4339 if (!esd0||!esd1) continue;
4340 AliITStrackMI tpc0(*esd0);
4341 AliITStrackMI tpc1(*esd1);
b75d63a7 4342 Double_t x,y,z; v0mi->GetXYZ(x,y,z); //I.B.
4343 Double_t alpha =TMath::ATan2(y,x); //I.B.
67c1e979 4344 if (v0mi->GetRr()>85){
4345 if (tpc0.Propagate(alpha,v0mi->GetRr())&&tpc1.Propagate(alpha,v0mi->GetRr())){
b75d63a7 4346 v0temp.SetParamN(tpc0);
4347 v0temp.SetParamP(tpc1);
67c1e979 4348 v0temp.Update(primvertex);
29641977 4349 if (kFALSE) cstream<<"Refit"<<
67c1e979 4350 "V0.="<<v0mi<<
4351 "V0refit.="<<&v0temp<<
4352 "Tr0.="<<&tpc0<<
4353 "Tr1.="<<&tpc1<<
4354 "\n";
b75d63a7 4355 //Bo: if (v0temp.GetDist2()<v0mi->GetDist2() || v0temp.GetV0CosineOfPointingAngle()>v0mi->GetV0CosineOfPointingAngle()){
4356 if (v0temp.GetDcaV0Daughters()<v0mi->GetDcaV0Daughters() || v0temp.GetV0CosineOfPointingAngle()>v0mi->GetV0CosineOfPointingAngle()){
4357 v0mi->SetParamN(tpc0);
4358 v0mi->SetParamP(tpc1);
67c1e979 4359 v0mi->Update(primvertex);
4360 }
4361 }
4362 continue;
4363 }
4364 if (v0mi->GetRr()>35){
afd25725 4365 CorrectForTPCtoITSDeadZoneMaterial(&tpc0);
4366 CorrectForTPCtoITSDeadZoneMaterial(&tpc1);
67c1e979 4367 if (tpc0.Propagate(alpha,v0mi->GetRr())&&tpc1.Propagate(alpha,v0mi->GetRr())){
b75d63a7 4368 v0temp.SetParamN(tpc0);
4369 v0temp.SetParamP(tpc1);
67c1e979 4370 v0temp.Update(primvertex);
29641977 4371 if (kFALSE) cstream<<"Refit"<<
67c1e979 4372 "V0.="<<v0mi<<
4373 "V0refit.="<<&v0temp<<
4374 "Tr0.="<<&tpc0<<
4375 "Tr1.="<<&tpc1<<
4376 "\n";
b75d63a7 4377 //Bo: if (v0temp.GetDist2()<v0mi->GetDist2() || v0temp.GetV0CosineOfPointingAngle()>v0mi->GetV0CosineOfPointingAngle()){
4378 if (v0temp.GetDcaV0Daughters()<v0mi->GetDcaV0Daughters() || v0temp.GetV0CosineOfPointingAngle()>v0mi->GetV0CosineOfPointingAngle()){
4379 v0mi->SetParamN(tpc0);
4380 v0mi->SetParamP(tpc1);
67c1e979 4381 v0mi->Update(primvertex);
4382 }
4383 }
4384 continue;
4385 }
afd25725 4386 CorrectForTPCtoITSDeadZoneMaterial(&tpc0);
4387 CorrectForTPCtoITSDeadZoneMaterial(&tpc1);
67c1e979 4388 // if (tpc0.Propagate(alpha,v0mi->GetRr())&&tpc1.Propagate(alpha,v0mi->GetRr())){
4389 if (RefitAt(v0mi->GetRr(),&tpc0, v0mi->GetClusters(0)) && RefitAt(v0mi->GetRr(),&tpc1, v0mi->GetClusters(1))){
b75d63a7 4390 v0temp.SetParamN(tpc0);
4391 v0temp.SetParamP(tpc1);
67c1e979 4392 v0temp.Update(primvertex);
29641977 4393 if (kFALSE) cstream<<"Refit"<<
67c1e979 4394 "V0.="<<v0mi<<
4395 "V0refit.="<<&v0temp<<
4396 "Tr0.="<<&tpc0<<
4397 "Tr1.="<<&tpc1<<
4398 "\n";
b75d63a7 4399 //Bo: if (v0temp.GetDist2()<v0mi->GetDist2() || v0temp.GetV0CosineOfPointingAngle()>v0mi->GetV0CosineOfPointingAngle()){
4400 if (v0temp.GetDcaV0Daughters()<v0mi->GetDcaV0Daughters() || v0temp.GetV0CosineOfPointingAngle()>v0mi->GetV0CosineOfPointingAngle()){
4401 v0mi->SetParamN(tpc0);
4402 v0mi->SetParamP(tpc1);
67c1e979 4403 v0mi->Update(primvertex);
4404 }
4405 }
4406 }
4407}
44347160 4408//------------------------------------------------------------------------
e50912db 4409void AliITStrackerMI::BuildMaterialLUT(TString material) {
4410 //--------------------------------------------------------------------
4411 // Fill a look-up table with mean material
4412 //--------------------------------------------------------------------
4413
4414 Int_t n=1000;
4415 Double_t mparam[7];
4416 Double_t point1[3],point2[3];
4417 Double_t phi,cosphi,sinphi,z;
4418 // 0-5 layers, 6 pipe, 7-8 shields
4419 Double_t rmin[9]={ 3.5, 5.5,13.0,22.0,35.0,41.0, 2.0, 7.5,25.0};
4420 Double_t rmax[9]={ 5.5, 7.3,17.0,26.0,41.0,47.0, 3.0,10.5,30.0};
4421
4422 Int_t ifirst=0,ilast=0;
4423 if(material.Contains("Pipe")) {
4424 ifirst=6; ilast=6;
4425 } else if(material.Contains("Shields")) {
4426 ifirst=7; ilast=8;
4427 } else if(material.Contains("Layers")) {
4428 ifirst=0; ilast=5;
4429 } else {
4430 Error("BuildMaterialLUT","Wrong layer name\n");
4431 }
4432
4433 for(Int_t imat=ifirst; imat<=ilast; imat++) {
4434 Double_t param[5]={0.,0.,0.,0.,0.};
4435 for (Int_t i=0; i<n; i++) {
4436 phi = 2.*TMath::Pi()*gRandom->Rndm();
4437 cosphi = TMath::Cos(phi); sinphi = TMath::Sin(phi);
4438 z = 14.*(-1.+2.*gRandom->Rndm()); // SPD barrel
4439 point1[0] = rmin[imat]*cosphi;
4440 point1[1] = rmin[imat]*sinphi;
4441 point1[2] = z;
4442 point2[0] = rmax[imat]*cosphi;
4443 point2[1] = rmax[imat]*sinphi;
4444 point2[2] = z;
4445 AliTracker::MeanMaterialBudget(point1,point2,mparam);
4446 for(Int_t j=0;j<5;j++) param[j]+=mparam[j];
4447 }
4448 for(Int_t j=0;j<5;j++) param[j]/=(Float_t)n;
4449 if(imat<=5) {
4450 fxOverX0Layer[imat] = param[1];
4451 fxTimesRhoLayer[imat] = param[0]*param[4];
4452 } else if(imat==6) {
4453 fxOverX0Pipe = param[1];
4454 fxTimesRhoPipe = param[0]*param[4];
4455 } else if(imat==7) {
4456 fxOverX0Shield[0] = param[1];
4457 fxTimesRhoShield[0] = param[0]*param[4];
4458 } else if(imat==8) {
4459 fxOverX0Shield[1] = param[1];
4460 fxTimesRhoShield[1] = param[0]*param[4];
4461 }
4462 }
4463 /*
4464 printf("%s\n",material.Data());
4465 printf("%f %f\n",fxOverX0Pipe,fxTimesRhoPipe);
4466 printf("%f %f\n",fxOverX0Shield[0],fxTimesRhoShield[0]);
4467 printf("%f %f\n",fxOverX0Shield[1],fxTimesRhoShield[1]);
4468 printf("%f %f\n",fxOverX0Layer[0],fxTimesRhoLayer[0]);
4469 printf("%f %f\n",fxOverX0Layer[1],fxTimesRhoLayer[1]);
4470 printf("%f %f\n",fxOverX0Layer[2],fxTimesRhoLayer[2]);
4471 printf("%f %f\n",fxOverX0Layer[3],fxTimesRhoLayer[3]);
4472 printf("%f %f\n",fxOverX0Layer[4],fxTimesRhoLayer[4]);
4473 printf("%f %f\n",fxOverX0Layer[5],fxTimesRhoLayer[5]);
4474 */
4475 return;
4476}
4477//------------------------------------------------------------------------
4478Int_t AliITStrackerMI::CorrectForPipeMaterial(AliITStrackMI *t,
4479 TString direction) {
4480 //-------------------------------------------------------------------
4481 // Propagate beyond beam pipe and correct for material
4482 // (material budget in different ways according to fUseTGeo value)
4483 //-------------------------------------------------------------------
4484
4485 // Define budget mode:
4486 // 0: material from AliITSRecoParam (hard coded)
4487 // 1: material from TGeo (on the fly)
4488 // 2: material from lut
4489 // 3: material from TGeo (same for all hypotheses)
4490 Int_t mode;
4491 switch(fUseTGeo) {
4492 case 0:
4493 mode=0;
4494 break;
4495 case 1:
4496 mode=1;
4497 break;
4498 case 2:
4499 mode=2;
4500 break;
4501 case 3:
4502 if(fTrackingPhase.Contains("Clusters2Tracks"))
4503 { mode=3; } else { mode=1; }
4504 break;
4505 case 4:
4506 if(fTrackingPhase.Contains("Clusters2Tracks"))
4507 { mode=3; } else { mode=2; }
4508 break;
4509 default:
4510 mode=0;
4511 break;
4512 }
4513 if(fTrackingPhase.Contains("Default")) mode=0;
4514
4515 Int_t index=fCurrentEsdTrack;
4516
4517 Float_t dir = (direction.Contains("inward") ? 1. : -1.);
4518 Double_t rToGo=(dir>0 ? AliITSRecoParam::GetrInsidePipe() : AliITSRecoParam::GetrOutsidePipe());
4519 Double_t xToGo; t->GetLocalXat(rToGo,xToGo);
4520
4521 Double_t xOverX0,x0,lengthTimesMeanDensity;
4522 Bool_t anglecorr=kTRUE;
4523
4524 switch(mode) {
4525 case 0:
4526 xOverX0 = AliITSRecoParam::GetdPipe();
4527 x0 = AliITSRecoParam::GetX0Be();
4528 lengthTimesMeanDensity = xOverX0*x0;
4529 break;
4530 case 1:
4531 if (!t->PropagateToTGeo(xToGo,1)) return 0;
4532 return 1;
4533 break;
4534 case 2:
4535 if(fxOverX0Pipe<0) BuildMaterialLUT("Pipe");
4536 xOverX0 = fxOverX0Pipe;
4537 lengthTimesMeanDensity = fxTimesRhoPipe;
4538 break;
4539 case 3:
4540 if(!fxOverX0PipeTrks || index<0 || index>=fNtracks) Error("CorrectForPipeMaterial","Incorrect usage of UseTGeo option!\n");
4541 if(fxOverX0PipeTrks[index]<0) {
4542 if (!t->PropagateToTGeo(xToGo,1,xOverX0,lengthTimesMeanDensity)) return 0;
4543 Double_t angle=TMath::Sqrt((1.+t->GetTgl()*t->GetTgl())/
4544 (1.-t->GetSnp()*t->GetSnp()));
4545 fxOverX0PipeTrks[index] = TMath::Abs(xOverX0)/angle;
4546 fxTimesRhoPipeTrks[index] = TMath::Abs(lengthTimesMeanDensity)/angle;
4547 return 1;
4548 }
4549 xOverX0 = fxOverX0PipeTrks[index];
4550 lengthTimesMeanDensity = fxTimesRhoPipeTrks[index];
4551 break;
4552 }
4553
4554 lengthTimesMeanDensity *= dir;
4555
4556 if (!t->AliExternalTrackParam::PropagateTo(xToGo,GetBz())) return 0;
4557 if (!t->CorrectForMeanMaterial(xOverX0,lengthTimesMeanDensity,anglecorr)) return 0;
4558
4559 return 1;
4560}
4561//------------------------------------------------------------------------
4562Int_t AliITStrackerMI::CorrectForShieldMaterial(AliITStrackMI *t,
4563 TString shield,
4564 TString direction) {
4565 //-------------------------------------------------------------------
4566 // Propagate beyond SPD or SDD shield and correct for material
4567 // (material budget in different ways according to fUseTGeo value)
4568 //-------------------------------------------------------------------
4569
4570 // Define budget mode:
4571 // 0: material from AliITSRecoParam (hard coded)
4572 // 1: material from TGeo (on the fly)
4573 // 2: material from lut
4574 // 3: material from TGeo (same for all hypotheses)
4575 Int_t mode;
4576 switch(fUseTGeo) {
4577 case 0:
4578 mode=0;
4579 break;
4580 case 1:
4581 mode=1;
4582 break;
4583 case 2:
4584 mode=2;
4585 break;
4586 case 3:
4587 if(fTrackingPhase.Contains("Clusters2Tracks"))
4588 { mode=3; } else { mode=1; }
4589 break;
4590 case 4:
4591 if(fTrackingPhase.Contains("Clusters2Tracks"))
4592 { mode=3; } else { mode=2; }
4593 break;
4594 default:
4595 mode=0;
4596 break;
4597 }
4598 if(fTrackingPhase.Contains("Default")) mode=0;
4599
4600 Float_t dir = (direction.Contains("inward") ? 1. : -1.);
4601 Double_t rToGo;
4602 Int_t shieldindex=0;
4603 if (shield.Contains("SDD")) { // SDDouter
4604 rToGo=(dir>0 ? AliITSRecoParam::GetrInsideShield(1) : AliITSRecoParam::GetrOutsideShield(1));
4605 shieldindex=1;
4606 } else if (shield.Contains("SPD")) { // SPDouter
4607 rToGo=(dir>0 ? AliITSRecoParam::GetrInsideShield(0) : AliITSRecoParam::GetrOutsideShield(0));
4608 shieldindex=0;
4609 } else {
4610 Error("CorrectForShieldMaterial"," Wrong shield name\n");
e50912db 4611 return 0;
4612 }
4613 Double_t xToGo; t->GetLocalXat(rToGo,xToGo);
4614
4615 Int_t index=2*fCurrentEsdTrack+shieldindex;
4616
4617 Double_t xOverX0,x0,lengthTimesMeanDensity;
4618 Bool_t anglecorr=kTRUE;
4619
4620 switch(mode) {
4621 case 0:
4622 xOverX0 = AliITSRecoParam::Getdshield(shieldindex);
4623 x0 = AliITSRecoParam::GetX0shield(shieldindex);
4624 lengthTimesMeanDensity = xOverX0*x0;
4625 break;
4626 case 1:
4627 if (!t->PropagateToTGeo(xToGo,1)) return 0;
4628 return 1;
4629 break;
4630 case 2:
4631 if(fxOverX0Shield[shieldindex]<0) BuildMaterialLUT("Shields");
4632 xOverX0 = fxOverX0Shield[shieldindex];
4633 lengthTimesMeanDensity = fxTimesRhoShield[shieldindex];
4634 break;
4635 case 3:
4636 if(!fxOverX0ShieldTrks || index<0 || index>=2*fNtracks) Error("CorrectForShieldMaterial","Incorrect usage of UseTGeo option!\n");
4637 if(fxOverX0ShieldTrks[index]<0) {
4638 if (!t->PropagateToTGeo(xToGo,1,xOverX0,lengthTimesMeanDensity)) return 0;
4639 Double_t angle=TMath::Sqrt((1.+t->GetTgl()*t->GetTgl())/
4640 (1.-t->GetSnp()*t->GetSnp()));
4641 fxOverX0ShieldTrks[index] = TMath::Abs(xOverX0)/angle;
4642 fxTimesRhoShieldTrks[index] = TMath::Abs(lengthTimesMeanDensity)/angle;
4643 return 1;
4644 }
4645 xOverX0 = fxOverX0ShieldTrks[index];
4646 lengthTimesMeanDensity = fxTimesRhoShieldTrks[index];
4647 break;
4648 }
4649
4650 lengthTimesMeanDensity *= dir;
4651
4652 if (!t->AliExternalTrackParam::PropagateTo(xToGo,GetBz())) return 0;
4653 if (!t->CorrectForMeanMaterial(xOverX0,lengthTimesMeanDensity,anglecorr)) return 0;
4654
4655 return 1;
4656}
4657//------------------------------------------------------------------------
4658Int_t AliITStrackerMI::CorrectForLayerMaterial(AliITStrackMI *t,
4659 Int_t layerindex,
4660 Double_t oldGlobXYZ[3],
4661 TString direction) {
4662 //-------------------------------------------------------------------
4663 // Propagate beyond layer and correct for material
4664 // (material budget in different ways according to fUseTGeo value)
4665 //-------------------------------------------------------------------
4666
4667 // Define budget mode:
4668 // 0: material from AliITSRecoParam (hard coded)
4669 // 1: material from TGeo (on the fly)
4670 // 2: material from lut
4671 // 3: material from TGeo (same for all hypotheses)
4672 Int_t mode;
4673 switch(fUseTGeo) {
4674 case 0:
4675 mode=0;
4676 break;
4677 case 1:
4678 mode=1;
4679 break;
4680 case 2:
4681 mode=2;
4682 break;
4683 case 3:
4684 if(fTrackingPhase.Contains("Clusters2Tracks"))
4685 { mode=3; } else { mode=1; }
4686 break;
4687 case 4:
4688 if(fTrackingPhase.Contains("Clusters2Tracks"))
4689 { mode=3; } else { mode=2; }
4690 break;
4691 default:
4692 mode=0;
4693 break;
4694 }
4695 if(fTrackingPhase.Contains("Default")) mode=0;
4696
4697 Float_t dir = (direction.Contains("inward") ? 1. : -1.);
4698
4699 Double_t r=fgLayers[layerindex].GetR();
4700 Double_t deltar=(layerindex<2 ? 0.10*r : 0.05*r);
4701
4702 Double_t rToGo=TMath::Sqrt(t->GetX()*t->GetX()+t->GetY()*t->GetY())-deltar*dir;
4703 Double_t xToGo; t->GetLocalXat(rToGo,xToGo);
4704
4705 Int_t index=6*fCurrentEsdTrack+layerindex;
4706
4707 // Bring the track beyond the material
4708 if (!t->AliExternalTrackParam::PropagateTo(xToGo,GetBz())) return 0;
4709 Double_t globXYZ[3];
4710 t->GetXYZ(globXYZ);
4711
4712 Double_t xOverX0=0.0,x0=0.0,lengthTimesMeanDensity=0.0;
4713 Double_t mparam[7];
4714 Bool_t anglecorr=kTRUE;
4715
4716 switch(mode) {
4717 case 0:
4718 xOverX0 = fgLayers[layerindex].GetThickness(t->GetY(),t->GetZ(),x0);
4719 lengthTimesMeanDensity = xOverX0*x0;
4720 break;
4721 case 1:
4722 AliTracker::MeanMaterialBudget(oldGlobXYZ,globXYZ,mparam);
4723 if(mparam[1]>900000) return 0;
4724 xOverX0=mparam[1];
4725 lengthTimesMeanDensity=mparam[0]*mparam[4];
4726 anglecorr=kFALSE;
4727 break;
4728 case 2:
4729 if(fxOverX0Layer[layerindex]<0) BuildMaterialLUT("Layers");
4730 xOverX0 = fxOverX0Layer[layerindex];
4731 lengthTimesMeanDensity = fxTimesRhoLayer[layerindex];
4732 break;
4733 case 3:
4734 if(!fxOverX0LayerTrks || index<0 || index>=6*fNtracks) Error("CorrectForLayerMaterial","Incorrect usage of UseTGeo option!\n");
4735 if(fxOverX0LayerTrks[index]<0) {
4736 AliTracker::MeanMaterialBudget(oldGlobXYZ,globXYZ,mparam);
4737 if(mparam[1]>900000) return 0;
4738 Double_t angle=TMath::Sqrt((1.+t->GetTgl()*t->GetTgl())/
4739 (1.-t->GetSnp()*t->GetSnp()));
4740 xOverX0=mparam[1]/angle;
4741 lengthTimesMeanDensity=mparam[0]*mparam[4]/angle;
4742 fxOverX0LayerTrks[index] = TMath::Abs(xOverX0);
4743 fxTimesRhoLayerTrks[index] = TMath::Abs(lengthTimesMeanDensity);
4744 }
4745 xOverX0 = fxOverX0LayerTrks[index];
4746 lengthTimesMeanDensity = fxTimesRhoLayerTrks[index];
4747 break;
4748 }
4749
4750 lengthTimesMeanDensity *= dir;
4751
4752 if (!t->CorrectForMeanMaterial(xOverX0,lengthTimesMeanDensity,anglecorr)) return 0;
4753
4754 return 1;
4755}
4756//------------------------------------------------------------------------
4757void AliITStrackerMI::MakeTrksMaterialLUT(Int_t ntracks) {
4758 //-----------------------------------------------------------------
4759 // Initialize LUT for storing material for each prolonged track
4760 //-----------------------------------------------------------------
4761 fxOverX0PipeTrks = new Float_t[ntracks];
4762 fxTimesRhoPipeTrks = new Float_t[ntracks];
4763 fxOverX0ShieldTrks = new Float_t[ntracks*2];
4764 fxTimesRhoShieldTrks = new Float_t[ntracks*2];
4765 fxOverX0LayerTrks = new Float_t[ntracks*6];
4766 fxTimesRhoLayerTrks = new Float_t[ntracks*6];
4767
4768 for(Int_t i=0; i<ntracks; i++) {
4769 fxOverX0PipeTrks[i] = -1.;
4770 fxTimesRhoPipeTrks[i] = -1.;
4771 }
4772 for(Int_t j=0; j<ntracks*2; j++) {
4773 fxOverX0ShieldTrks[j] = -1.;
4774 fxTimesRhoShieldTrks[j] = -1.;
4775 }
4776 for(Int_t k=0; k<ntracks*6; k++) {
4777 fxOverX0LayerTrks[k] = -1.;
4778 fxTimesRhoLayerTrks[k] = -1.;
4779 }
4780
4781 fNtracks = ntracks;
4782
4783 return;
4784}
4785//------------------------------------------------------------------------
4786void AliITStrackerMI::DeleteTrksMaterialLUT() {
4787 //-----------------------------------------------------------------
4788 // Delete LUT for storing material for each prolonged track
4789 //-----------------------------------------------------------------
4790 if(fxOverX0PipeTrks) {
4791 delete [] fxOverX0PipeTrks; fxOverX0PipeTrks = 0;
4792 }
4793 if(fxOverX0ShieldTrks) {
4794 delete [] fxOverX0ShieldTrks; fxOverX0ShieldTrks = 0;
4795 }
4796
4797 if(fxOverX0LayerTrks) {
4798 delete [] fxOverX0LayerTrks; fxOverX0LayerTrks = 0;
4799 }
4800 if(fxTimesRhoPipeTrks) {
4801 delete [] fxTimesRhoPipeTrks; fxTimesRhoPipeTrks = 0;
4802 }
4803 if(fxTimesRhoShieldTrks) {
4804 delete [] fxTimesRhoShieldTrks; fxTimesRhoShieldTrks = 0;
4805 }
4806 if(fxTimesRhoLayerTrks) {
4807 delete [] fxTimesRhoLayerTrks; fxTimesRhoLayerTrks = 0;
4808 }
4809 return;
4810}
4811//------------------------------------------------------------------------
6518a6c5 4812Int_t AliITStrackerMI::CheckSkipLayer(AliITStrackMI *track,
4813 Int_t ilayer,Int_t idet) const {
2755f080 4814 //-----------------------------------------------------------------
4815 // This method is used to decide whether to allow a prolongation
4816 // without clusters, because we want to skip the layer.
4817 // In this case the return value is > 0:
4818 // return 1: the user requested to skip a layer
4819 // return 2: track outside z acceptance of SSD/SDD and will cross both SPD
4820 //-----------------------------------------------------------------
e43c066c 4821
2755f080 4822 if (AliITSReconstructor::GetRecoParam()->GetLayersToSkip(ilayer)) return 1;
51ad6848 4823
2755f080 4824 if (idet<0 && ilayer>1 && AliITSReconstructor::GetRecoParam()->GetExtendedEtaAcceptance()) {
4825 // check if track will cross SPD outer layer
4826 Double_t phiAtSPD2,zAtSPD2;
6518a6c5 4827 if (track->GetPhiZat(fgLayers[1].GetR(),phiAtSPD2,zAtSPD2)) {
2755f080 4828 if (TMath::Abs(zAtSPD2)<2.*AliITSRecoParam::GetSPDdetzlength()) return 2;
4829 }
4830 }
51ad6848 4831
2755f080 4832 return 0;
4833}
4834//------------------------------------------------------------------------
6518a6c5 4835Int_t AliITStrackerMI::CheckDeadZone(/*AliITStrackMI *track,*/
ae00569a 4836 Int_t ilayer,Int_t idet,
6518a6c5 4837 Double_t zmin,Double_t zmax/*,Double_t ymin,Double_t ymax*/) const {
4838 //-----------------------------------------------------------------
4839 // This method is used to decide whether to allow a prolongation
ae00569a 4840 // without clusters, because there is a dead zone in the road.
6518a6c5 4841 // In this case the return value is > 0:
4842 // return 1: dead zone at z=0,+-7cm in SPD
ae00569a 4843 // return 2: dead area from the OCDB // NOT YET IMPLEMENTED
6518a6c5 4844 //-----------------------------------------------------------------
4845
4846 // check dead zones at z=0,+-7cm in the SPD
4847 if (ilayer<2 && !AliITSReconstructor::GetRecoParam()->GetAddVirtualClustersInDeadZone()) {
4848 Double_t zmindead[3]={fSPDdetzcentre[0] + 0.5*AliITSRecoParam::GetSPDdetzlength(),
4849 fSPDdetzcentre[1] + 0.5*AliITSRecoParam::GetSPDdetzlength(),
4850 fSPDdetzcentre[2] + 0.5*AliITSRecoParam::GetSPDdetzlength()};
4851 Double_t zmaxdead[3]={fSPDdetzcentre[1] - 0.5*AliITSRecoParam::GetSPDdetzlength(),
4852 fSPDdetzcentre[2] - 0.5*AliITSRecoParam::GetSPDdetzlength(),
4853 fSPDdetzcentre[3] - 0.5*AliITSRecoParam::GetSPDdetzlength()};
4854 for (Int_t i=0; i<3; i++)
ae00569a 4855 if (zmin<zmaxdead[i] && zmax>zmindead[i]) return 1;
6518a6c5 4856 }
4857
ae00569a 4858 // check dead zones from OCDB
4859 if (!AliITSReconstructor::GetRecoParam()->GetUseDeadZonesFromOCDB()) return 0;
4860
4861 if(idet<0) return 0;
4862
4863 // look in OCDB (only entire dead modules for the moment)
4864 if (ilayer==0 || ilayer==1) { // SPD
4865 AliCDBEntry* cdbEntry = AliCDBManager::Instance()->Get("ITS/Calib/SPDDead");
4866 if (!cdbEntry) {
4867 Error("CheckDeadZone","Cannot get CDB entry for SPD\n");
4868 return 0;
4869 }
4870 TObjArray* spdEntry = (TObjArray*)cdbEntry->GetObject();
4871 if (!spdEntry) {
4872 Error("CheckDeadZone","Cannot get CDB entry for SPD\n");
4873 return 0;
4874 }
4875 if(ilayer==1) idet += AliITSgeomTGeo::GetNLadders(1)*AliITSgeomTGeo::GetNDetectors(1);
4876 //printf("SPD det: %d\n",idet);
4877 AliITSCalibrationSPD *calibSPD = (AliITSCalibrationSPD*)spdEntry->At(idet);
4878 if (calibSPD->IsBad()) return 2;
4879 } else if (ilayer==2 || ilayer==3) { // SDD
4880 AliCDBEntry* cdbEntry = AliCDBManager::Instance()->Get("ITS/Calib/CalibSDD");
4881 if (!cdbEntry) {
4882 Error("CheckDeadZone","Cannot get CDB entry for SDD\n");
4883 return 0;
4884 }
4885 TObjArray* sddEntry = (TObjArray*)cdbEntry->GetObject();
4886 if (!sddEntry) {
4887 Error("CheckDeadZone","Cannot get CDB entry for SDD\n");
4888 return 0;
4889 }
4890 if(ilayer==3) idet += AliITSgeomTGeo::GetNLadders(3)*AliITSgeomTGeo::GetNDetectors(3);
4891 //printf("SDD det: %d\n",idet);
4892 AliITSCalibrationSDD *calibSDD = (AliITSCalibrationSDD*)sddEntry->At(idet);
eefec958 4893 if (calibSDD->IsBad()) return 2;
ae00569a 4894 } else if (ilayer==4 || ilayer==5) { // SSD
4895 } else {
4896 Error("CheckDeadZone","Wrong layer number\n");
4897 if(ilayer==5) idet += AliITSgeomTGeo::GetNLadders(5)*AliITSgeomTGeo::GetNDetectors(5);
4898 return 0;
6518a6c5 4899 }
4900
4901 return 0;
4902}
4903//------------------------------------------------------------------------
ae00569a 4904Bool_t AliITStrackerMI::LocalModuleCoord(Int_t ilayer,Int_t idet,
4905 AliITStrackMI *track,
4906 Float_t &xloc,Float_t &zloc) const {
4907 //-----------------------------------------------------------------
4908 // Gives position of track in local module ref. frame
4909 //-----------------------------------------------------------------
4910
4911 xloc=0.;
4912 zloc=0.;
4913
4914 if(idet<0) return kFALSE;
4915
4916 Int_t ndet=AliITSgeomTGeo::GetNDetectors(ilayer+1); // layers from 1 to 6
4917
4918 Int_t lad = Int_t(idet/ndet) + 1;
4a66240a 4919
ae00569a 4920 Int_t det = idet - (lad-1)*ndet + 1;
4921
4922 Double_t xyzGlob[3],xyzLoc[3];
4923
4924 track->GetXYZ(xyzGlob);
4925
4926 AliITSgeomTGeo::GlobalToLocal(ilayer+1,lad,det,xyzGlob,xyzLoc);
4927
4928 xloc = (Float_t)xyzLoc[0];
4929 zloc = (Float_t)xyzLoc[2];
4930
4931 return kTRUE;
4932}
4933//------------------------------------------------------------------------
7167ae53 4934Bool_t AliITStrackerMI::IsOKForPlaneEff(AliITStrackMI* track, Int_t ilayer) const {
4935// Method still to be implemented:
4936//
4937// it will apply a pre-selection to obtain good quality tracks.
4938// Here also you will have the possibility to put a control on the
4939// impact point of the track on the basic block, in order to exclude border regions
4940// this will be done by calling a proper method of the AliITSPlaneEff class.
4941//
4942// input: AliITStrackMI* track, ilayer= layer number [0,5]
8a32c4b5 4943// output: Bool_t -> kTRUE 2f usable track, kFALSE if not usable.
a31a139f 4944 if(!fPlaneEff)
4945 {AliWarning("IsOKForPlaneEff: null pointer to AliITSPlaneEff"); return kFALSE;}
8a32c4b5 4946 AliITSlayer &layer=fgLayers[ilayer];
4947 Double_t r=layer.GetR();
4948 //AliITStrackV2 tmp(*track);
4949 AliITStrackMI tmp(*track);
4950
4951// detector number
4952 Double_t phi,z;
4953 if (!tmp.GetPhiZat(r,phi,z)) return kFALSE;
4954 Int_t idet=layer.FindDetectorIndex(phi,z);
4955 if(idet<0) { AliInfo(Form("cannot find detector"));
4956 return kFALSE;}
4957
4958 // here check if it has good Chi Square.
4959
4960 //propagate to the intersection with the detector plane
4961 const AliITSdetector &det=layer.GetDetector(idet);
4962 if (!tmp.Propagate(det.GetPhi(),det.GetR())) return kFALSE;
4963
4964 Float_t locx; //
4965 Float_t locz; //
4966 LocalModuleCoord(ilayer,idet,&tmp,locx,locz);
4967 UInt_t key=fPlaneEff->GetKeyFromDetLocCoord(ilayer,idet,locx,locz);
4968 if(key>fPlaneEff->Nblock()) return kFALSE;
4969 Float_t blockXmn,blockXmx,blockZmn,blockZmx;
4970 if (!fPlaneEff->GetBlockBoundaries(key,blockXmn,blockXmx,blockZmn,blockZmx)) return kFALSE;
a31a139f 4971 // transform Local boundaries of the basic block into
5fbd4fd6 4972 // Global (i.e. ALICE, not tracking reference) coordinate
8a32c4b5 4973 //
4974 Double_t a1[3]={blockXmn,0.,blockZmn};
4975 Double_t a2[3]={blockXmx,0.,blockZmn};
4976 Double_t a3[3]={blockXmn,0.,blockZmx};
4977 Int_t ndet=AliITSgeomTGeo::GetNDetectors(ilayer+1); // layers from 1 to 6
4978 Int_t lad = Int_t(idet/ndet) + 1;
4979 Int_t hdet = idet - (lad-1)*ndet + 1;
a31a139f 4980 Double_t xyzGlob[3];
8a32c4b5 4981 AliITSgeomTGeo::LocalToGlobal(ilayer+1,lad,hdet,a1,a1);
4982 AliITSgeomTGeo::LocalToGlobal(ilayer+1,lad,hdet,a2,a2);
4983 AliITSgeomTGeo::LocalToGlobal(ilayer+1,lad,hdet,a3,a3);
4984 Double_t gBlockYmn,gBlockYmx,gBlockZmn,gBlockZmx;
4985 if(a1[1]>a2[1]) {gBlockYmn=a2[1]; gBlockYmx=a1[1];}
4986 else {gBlockYmn=a1[1]; gBlockYmx=a2[1];}
a31a139f 4987 if(a2[2]>a3[2]) {gBlockZmn=a3[2]; gBlockZmx=a2[2];}
4988 else {gBlockZmn=a2[2]; gBlockZmx=a3[2];}
4989 AliDebug(2,Form("Boundaries in Global system Ymin=%f, Ymax=%f, Zmin=%f, Zmax=%f",
4990 gBlockYmn,gBlockYmx,gBlockZmn,gBlockZmx));
8a32c4b5 4991
4992 //***************
4993 // DEFINITION OF SEARCH ROAD FOR accepting a track
4994 //
4995 //For the time being they are hard-wired, later on from AliITSRecoParam
a31a139f 4996 Double_t dz=4.*TMath::Sqrt(tmp.GetSigmaZ2()); // those are precisions in the tracking reference system
4997 Double_t dy=4.*TMath::Sqrt(tmp.GetSigmaY2()); // dy needs to be reduced (it is max now) if you do
4998 // comparison in Global Reference system
4999 Float_t gdz=dz;
5000 Float_t gdy=dy*TMath::Abs(TMath::Cos(tmp.GetAlpha()));
8a32c4b5 5001
5002 // exclude tracks at boundary between detectors
5003 //Double_t boundaryWidth=AliITSRecoParam::GetBoundaryWidth();
5004 Double_t boundaryWidth=0; // for the time being hard-wired, later on from AliITSRecoParam
a31a139f 5005 AliDebug(2,Form("Tracking: track impact x=%f, y=%f, z=%f",tmp.GetX(), tmp.GetY(), tmp.GetZ()));
5006 tmp.GetXYZ(xyzGlob);
5007 AliDebug(2,Form("Global: track impact x=%f, y=%f, z=%f",xyzGlob[0],xyzGlob[1],xyzGlob[2]));
5008 //AliInfo(Form("TEST GLOBAL track y = %f, z=%f",tmp.GetY(),tmp.GetZ()));
5009 AliDebug(2,Form("Search Road. Tracking: dy=%f , dz=%f",dy,dz));
5010 AliDebug(2,Form("Search Road. Global: Gdy=%f , Gdz=%f",gdy,gdz));
5011 if ( (xyzGlob[1]-gdy < gBlockYmn+boundaryWidth) ||
5012 (xyzGlob[1]+gdy > gBlockYmx-boundaryWidth) ||
5013 (xyzGlob[2]-gdz < gBlockZmn+boundaryWidth) ||
5014 (xyzGlob[2]+gdz > gBlockZmx-boundaryWidth) ) return kFALSE;
8a32c4b5 5015
5016 return kTRUE;
7167ae53 5017}
5018//------------------------------------------------------------------------
5019void AliITStrackerMI::UseTrackForPlaneEff(AliITStrackMI* track, Int_t ilayer) {
5020//
5021// This Method has to be optimized! For the time-being it uses the same criteria
5022// as those used in the search of extra clusters for overlapping modules.
5023//
5024// Method Purpose: estabilish whether a track has produced a recpoint or not
5025// in the layer under study (For Plane efficiency)
5026//
5027// inputs: AliITStrackMI* track (pointer to a usable track)
5028// outputs: none
5029// side effects: update (by 1 count) the Plane Efficiency statistics of the basic block
5030// traversed by this very track. In details:
5031// - if a cluster can be associated to the track then call
5032// AliITSPlaneEff::UpDatePlaneEff(key,kTRUE);
5033// - if not, the AliITSPlaneEff::UpDatePlaneEff(key,kFALSE) is called
5034//
a31a139f 5035 if(!fPlaneEff)
5036 {AliWarning("UseTrackForPlaneEff: null pointer to AliITSPlaneEff"); return;}
7167ae53 5037 AliITSlayer &layer=fgLayers[ilayer];
5038 Double_t r=layer.GetR();
5039 //AliITStrackV2 tmp(*track);
5040 AliITStrackMI tmp(*track);
5041
5042// detector number
5043 Double_t phi,z;
5044 if (!tmp.GetPhiZat(r,phi,z)) return;
5045 Int_t idet=layer.FindDetectorIndex(phi,z);
5046
8a32c4b5 5047 if(idet<0) { AliInfo(Form("cannot find detector"));
5048 return;}
7167ae53 5049
8a32c4b5 5050 //Double_t trackGlobXYZ1[3];
5051 //tmp.GetXYZ(trackGlobXYZ1);
7167ae53 5052
5053//propagate to the intersection with the detector plane
5054 const AliITSdetector &det=layer.GetDetector(idet);
5055 if (!tmp.Propagate(det.GetPhi(),det.GetR())) return;
8a32c4b5 5056
7167ae53 5057 //Float_t xloc,zloc;
5058
5059//***************
5060// DEFINITION OF SEARCH ROAD FOR CLUSTERS SELECTION
5061//
5062 Double_t dz=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadZ()*
5063 TMath::Sqrt(tmp.GetSigmaZ2() +
5064 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
5065 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
5066 AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer));
5067 Double_t dy=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadY()*
5068 TMath::Sqrt(tmp.GetSigmaY2() +
5069 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
5070 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
5071 AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer));
5072
5073// road in global (rphi,z) [i.e. in tracking ref. system]
5074 Double_t zmin = tmp.GetZ() - dz;
5075 Double_t zmax = tmp.GetZ() + dz;
5076 Double_t ymin = tmp.GetY() + r*det.GetPhi() - dy;
5077 Double_t ymax = tmp.GetY() + r*det.GetPhi() + dy;
5078
5079// select clusters in road
5080 layer.SelectClusters(zmin,zmax,ymin,ymax);
5081
5082// Define criteria for track-cluster association
5083 Double_t msz = tmp.GetSigmaZ2() +
5084 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
5085 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
5086 AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer);
5087 Double_t msy = tmp.GetSigmaY2() +
5088 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
5089 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
5090 AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer);
8a32c4b5 5091 if (tmp.GetConstrain()) {
7167ae53 5092 msz *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadZC();
5093 msy *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadYC();
8a32c4b5 5094 } else {
5095 msz *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadZNonC();
5096 msy *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadYNonC();
5097 }
7167ae53 5098 msz = 1./msz; // 1/RoadZ^2
5099 msy = 1./msy; // 1/RoadY^2
5100//
5101
5102 const AliITSRecPoint *cl=0; Int_t clidx=-1, ci=-1;
5103 Int_t idetc=-1;
8a32c4b5 5104 Double_t chi2trkcl=1000.*AliITSReconstructor::GetRecoParam()->GetMaxChi2();
5105 //Double_t tolerance=0.2;
5106 /*while ((cl=layer.GetNextCluster(clidx))!=0) {
7167ae53 5107 idetc = cl->GetDetectorIndex();
5108 if(idet!=idetc) continue;
5109 //Int_t ilay = cl->GetLayer();
5110
5111 if (TMath::Abs(tmp.GetZ() - cl->GetZ()) > tolerance) continue;
5112 if (TMath::Abs(tmp.GetY() - cl->GetY()) > tolerance) continue;
5113
5114 Double_t chi2=tmp.GetPredictedChi2(cl);
8a32c4b5 5115 if (chi2<chi2trkcl) { chi2trkcl=chi2; ci=clidx; }
5116 }*/
5117 Float_t locx; //
5118 Float_t locz; //
7167ae53 5119 LocalModuleCoord(ilayer,idet,&tmp,locx,locz);
5120//
5121 AliDebug(2,Form("ilayer= %d, idet=%d, x= %f, z=%f",ilayer,idet,locx,locz));
5122 UInt_t key=fPlaneEff->GetKeyFromDetLocCoord(ilayer,idet,locx,locz);
5123 if(key>fPlaneEff->Nblock()) return;
5124 Bool_t found=kFALSE;
8a32c4b5 5125 //if (ci>=0) {
1cc5cedc 5126 Double_t chi2;
8a32c4b5 5127 while ((cl=layer.GetNextCluster(clidx))!=0) {
5128 idetc = cl->GetDetectorIndex();
5129 if(idet!=idetc) continue;
5130 // here real control to see whether the cluster can be associated to the track.
5131 // cluster not associated to track
5132 if ( (tmp.GetZ()-cl->GetZ())*(tmp.GetZ()-cl->GetZ())*msz +
5133 (tmp.GetY()-cl->GetY())*(tmp.GetY()-cl->GetY())*msy > 1. ) continue;
5134 // calculate track-clusters chi2
1cc5cedc 5135 chi2 = GetPredictedChi2MI(&tmp,cl,ilayer); // note that this method change track tmp
5136 // in particular, the error associated to the cluster
8a32c4b5 5137 //Double_t chi2 = tmp.GetPredictedChi(cl); // this method does not change track tmp
5138 // chi2 cut
5139 if (chi2 > AliITSReconstructor::GetRecoParam()->GetMaxChi2s(ilayer)) continue;
7167ae53 5140 found=kTRUE;
8a32c4b5 5141 if (chi2<chi2trkcl) { chi2trkcl=chi2; ci=clidx; } // this just to trace which cluster is selected
7167ae53 5142 // track->SetExtraCluster(ilayer,(ilayer<<28)+ci);
5143 // track->SetExtraModule(ilayer,idetExtra);
5144 }
5145 if(!fPlaneEff->UpDatePlaneEff(found,key))
8a32c4b5 5146 AliWarning(Form("UseTrackForPlaneEff: cannot UpDate PlaneEff for key=%d",key));
5fbd4fd6 5147 if(fPlaneEff->GetCreateHistos()&& AliITSReconstructor::GetRecoParam()->GetHistoPlaneEff()) {
1cc5cedc 5148 Float_t tr[4]={99999.,99999.,9999.,9999.}; // initialize to high values
5149 Float_t clu[4]={-99999.,-99999.,9999.,9999.}; // (in some cases GetCov fails)
5150 Int_t cltype[2]={-999,-999};
5fbd4fd6 5151 Int_t ndet=AliITSgeomTGeo::GetNDetectors(ilayer+1); // layers from 1 to 6
5152 Int_t lad = Int_t(idet/ndet) + 1;
5153 Int_t hdet = idet - (lad-1)*ndet + 1;
1cc5cedc 5154 Double_t xyzGlob[3],xyzLoc[3],cv[21],exyzLoc[3],exyzGlob[3];
5155 if(tmp.GetXYZ(xyzGlob)) {
5156 if (AliITSgeomTGeo::GlobalToLocal(ilayer+1,lad,hdet,xyzGlob,xyzLoc)) {
5157 tr[0]=xyzLoc[0];
5158 tr[1]=xyzLoc[2];
5159 }
5160 }
5161 if(tmp.GetCovarianceXYZPxPyPz(cv)) {
5162 exyzGlob[0]=TMath::Sqrt(cv[0]);
5163 exyzGlob[1]=TMath::Sqrt(cv[2]);
5164 exyzGlob[2]=TMath::Sqrt(cv[5]);
5165 if (AliITSgeomTGeo::GlobalToLocalVect(AliITSgeomTGeo::GetModuleIndex(ilayer+1,lad,hdet),exyzGlob,exyzLoc)) {
5166 tr[2]=TMath::Abs(exyzLoc[0]);
5167 tr[3]=TMath::Abs(exyzLoc[2]);
5168 }
5169 }
3ebe30ad 5170 if (found){
5171 clu[0]=layer.GetCluster(ci)->GetDetLocalX();
5172 clu[1]=layer.GetCluster(ci)->GetDetLocalZ();
5173 cltype[0]=layer.GetCluster(ci)->GetNy();
5174 cltype[1]=layer.GetCluster(ci)->GetNz();
1cc5cedc 5175
5176 // Without the following 6 lines you would retrieve the nominal error of a cluster (e.g. for the SPD:
5177 // X->50/sqrt(12)=14 micron Z->450/sqrt(12)= 120 micron)
5178 // Within AliTrackerMI/AliTrackMI the error on the cluster is associated to the AliITStrackMI (fSigmaY,Z)
5179 // It is computed properly by calling the method
5180 // AliITStrackerMI::GetPredictedChi2MI(AliITStrackMI* track, const AliITSRecPoint *cluster,Int_t layer)
5181 // T
5182 //Double_t x=0.5*(tmp.GetX()+layer.GetCluster(ci)->GetX()); // Take into account the mis-alignment
5183 //if (tmp.PropagateTo(x,0.,0.)) {
5184 chi2=GetPredictedChi2MI(&tmp,layer.GetCluster(ci),ilayer);
5185 AliCluster c(*layer.GetCluster(ci));
5186 c.SetSigmaY2(tmp.GetSigmaY(ilayer)*tmp.GetSigmaY(ilayer));
5187 c.SetSigmaZ2(tmp.GetSigmaZ(ilayer)*tmp.GetSigmaZ(ilayer));
5188 Float_t cov[6];
5189 //if (layer.GetCluster(ci)->GetGlobalCov(cov)) // by using this, instead, you got nominal cluster errors
5190 if (c.GetGlobalCov(cov))
5191 {
5192 exyzGlob[0]=TMath::Sqrt(cov[0]);
5193 exyzGlob[1]=TMath::Sqrt(cov[3]);
5194 exyzGlob[2]=TMath::Sqrt(cov[5]);
5195 if (AliITSgeomTGeo::GlobalToLocalVect(AliITSgeomTGeo::GetModuleIndex(ilayer+1,lad,hdet),exyzGlob,exyzLoc)) {
5196 clu[2]=TMath::Abs(exyzLoc[0]);
5197 clu[3]=TMath::Abs(exyzLoc[2]);
5198 }
5199 }
5200 //}
3ebe30ad 5201 }
5202 fPlaneEff->FillHistos(key,found,tr,clu,cltype);
5fbd4fd6 5203 }
7167ae53 5204return;
5205}