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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 **************************************************************************/
fddf8459 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
23197852 22// Current support and development:
23// Andrea Dainese, andrea.dainese@lnl.infn.it
afd25725 24// dE/dx analysis by: Boris Batyunya, JINR, Boris.Batiounia@cern.ch
25// Params moved to AliITSRecoParam by: Andrea Dainese, INFN
26// Material budget from TGeo by: Ludovic Gaudichet & Andrea Dainese, INFN
e43c066c 27//-------------------------------------------------------------------------
bf6adc12 28
29#include <TMatrixD.h>
e43c066c 30#include <TTree.h>
afd25725 31#include <TDatabasePDG.h>
9a5326b1 32#include <TString.h>
e50912db 33#include <TRandom.h>
a70ed6ad 34#include <TTreeStream.h>
bf6adc12 35
4187a601 36#include "AliLog.h"
a70ed6ad 37#include "AliITSPlaneEff.h"
38#include "AliITSCalibrationSPD.h"
39#include "AliITSCalibrationSDD.h"
40#include "AliITSCalibrationSSD.h"
41#include "AliCDBEntry.h"
42#include "AliCDBManager.h"
43#include "AliAlignObj.h"
44#include "AliTrackPointArray.h"
45#include "AliESDVertex.h"
af885e0f 46#include "AliESDEvent.h"
aad72f45 47#include "AliESDtrack.h"
6c94f330 48#include "AliV0.h"
bf6adc12 49#include "AliHelix.h"
a70ed6ad 50#include "AliITSChannelStatus.h"
51#include "AliITSDetTypeRec.h"
00a7cc50 52#include "AliITSRecPoint.h"
2b295109 53#include "AliITSRecPointContainer.h"
e341247d 54#include "AliITSgeomTGeo.h"
44347160 55#include "AliITSReconstructor.h"
572f41f9 56#include "AliITSClusterParam.h"
23197852 57#include "AliITSsegmentation.h"
58#include "AliITSCalibration.h"
7167ae53 59#include "AliITSPlaneEffSPD.h"
60#include "AliITSPlaneEffSDD.h"
61#include "AliITSPlaneEffSSD.h"
44396017 62#include "AliITSV0Finder.h"
ae00569a 63#include "AliITStrackerMI.h"
e43c066c 64
65ClassImp(AliITStrackerMI)
e43c066c 66
e50912db 67AliITStrackerMI::AliITSlayer AliITStrackerMI::fgLayers[AliITSgeomTGeo::kNLayers]; // ITS layers
44347160 68
8221b41b 69AliITStrackerMI::AliITStrackerMI():AliTracker(),
70fI(0),
71fBestTrack(),
72fTrackToFollow(),
73fTrackHypothesys(),
74fBestHypothesys(),
75fOriginal(),
76fCurrentEsdTrack(),
77fPass(0),
78fAfterV0(kFALSE),
79fLastLayerToTrackTo(0),
afd25725 80fCoefficients(0),
8221b41b 81fEsd(0),
e50912db 82fTrackingPhase("Default"),
6518a6c5 83fUseTGeo(3),
e50912db 84fNtracks(0),
85fxOverX0Pipe(-1.),
86fxTimesRhoPipe(-1.),
87fxOverX0PipeTrks(0),
88fxTimesRhoPipeTrks(0),
89fxOverX0ShieldTrks(0),
90fxTimesRhoShieldTrks(0),
91fxOverX0LayerTrks(0),
92fxTimesRhoLayerTrks(0),
4a66240a 93fDebugStreamer(0),
23197852 94fITSChannelStatus(0),
a70ed6ad 95fkDetTypeRec(0),
ae00569a 96fPlaneEff(0) {
8221b41b 97 //Default constructor
e50912db 98 Int_t i;
99 for(i=0;i<4;i++) fSPDdetzcentre[i]=0.;
100 for(i=0;i<2;i++) {fxOverX0Shield[i]=-1.;fxTimesRhoShield[i]=-1.;}
101 for(i=0;i<6;i++) {fxOverX0Layer[i]=-1.;fxTimesRhoLayer[i]=-1.;}
8221b41b 102}
44347160 103//------------------------------------------------------------------------
1f3e997f 104AliITStrackerMI::AliITStrackerMI(const Char_t *geom) : AliTracker(),
e50912db 105fI(AliITSgeomTGeo::GetNLayers()),
8221b41b 106fBestTrack(),
107fTrackToFollow(),
108fTrackHypothesys(),
109fBestHypothesys(),
110fOriginal(),
111fCurrentEsdTrack(),
112fPass(0),
113fAfterV0(kFALSE),
e50912db 114fLastLayerToTrackTo(AliITSRecoParam::GetLastLayerToTrackTo()),
afd25725 115fCoefficients(0),
8221b41b 116fEsd(0),
e50912db 117fTrackingPhase("Default"),
6518a6c5 118fUseTGeo(3),
e50912db 119fNtracks(0),
120fxOverX0Pipe(-1.),
121fxTimesRhoPipe(-1.),
122fxOverX0PipeTrks(0),
123fxTimesRhoPipeTrks(0),
124fxOverX0ShieldTrks(0),
125fxTimesRhoShieldTrks(0),
126fxOverX0LayerTrks(0),
127fxTimesRhoLayerTrks(0),
4a66240a 128fDebugStreamer(0),
23197852 129fITSChannelStatus(0),
a70ed6ad 130fkDetTypeRec(0),
ae00569a 131fPlaneEff(0) {
e43c066c 132 //--------------------------------------------------------------------
133 //This is the AliITStrackerMI constructor
134 //--------------------------------------------------------------------
e341247d 135 if (geom) {
136 AliWarning("\"geom\" is actually a dummy argument !");
137 }
138
afd25725 139 fCoefficients = 0;
628e7bb0 140 fAfterV0 = kFALSE;
e341247d 141
e50912db 142 for (Int_t i=1; i<AliITSgeomTGeo::GetNLayers()+1; i++) {
e341247d 143 Int_t nlad=AliITSgeomTGeo::GetNLadders(i);
144 Int_t ndet=AliITSgeomTGeo::GetNDetectors(i);
145
146 Double_t xyz[3], &x=xyz[0], &y=xyz[1], &z=xyz[2];
147 AliITSgeomTGeo::GetOrigTranslation(i,1,1,xyz);
e43c066c 148 Double_t poff=TMath::ATan2(y,x);
149 Double_t zoff=z;
e341247d 150 Double_t r=TMath::Sqrt(x*x + y*y);
e43c066c 151
e341247d 152 AliITSgeomTGeo::GetOrigTranslation(i,1,2,xyz);
e43c066c 153 r += TMath::Sqrt(x*x + y*y);
e341247d 154 AliITSgeomTGeo::GetOrigTranslation(i,2,1,xyz);
e43c066c 155 r += TMath::Sqrt(x*x + y*y);
e341247d 156 AliITSgeomTGeo::GetOrigTranslation(i,2,2,xyz);
e43c066c 157 r += TMath::Sqrt(x*x + y*y);
158 r*=0.25;
159
160 new (fgLayers+i-1) AliITSlayer(r,poff,zoff,nlad,ndet);
161
162 for (Int_t j=1; j<nlad+1; j++) {
163 for (Int_t k=1; k<ndet+1; k++) { //Fill this layer with detectors
e341247d 164 TGeoHMatrix m; AliITSgeomTGeo::GetOrigMatrix(i,j,k,m);
1f3e997f 165 const TGeoHMatrix *tm=AliITSgeomTGeo::GetTracking2LocalMatrix(i,j,k);
166 m.Multiply(tm);
a5d0fae6 167 Double_t txyz[3]={0.};
168 xyz[0]=0.;xyz[1]=0.;xyz[2]=0.;
1f3e997f 169 m.LocalToMaster(txyz,xyz);
a5d0fae6 170 r=TMath::Sqrt(xyz[0]*xyz[0] + xyz[1]*xyz[1]);
1f3e997f 171 Double_t phi=TMath::ATan2(xyz[1],xyz[0]);
e341247d 172
173 if (phi<0) phi+=TMath::TwoPi();
174 else if (phi>=TMath::TwoPi()) phi-=TMath::TwoPi();
175
e43c066c 176 AliITSdetector &det=fgLayers[i-1].GetDetector((j-1)*ndet + k-1);
177 new(&det) AliITSdetector(r,phi);
1c97ce2f 178 // compute the real radius (with misalignment)
179 TGeoHMatrix mmisal(*(AliITSgeomTGeo::GetMatrix(i,j,k)));
180 mmisal.Multiply(tm);
181 xyz[0]=0.;xyz[1]=0.;xyz[2]=0.;
182 mmisal.LocalToMaster(txyz,xyz);
183 Double_t rmisal=TMath::Sqrt(xyz[0]*xyz[0] + xyz[1]*xyz[1]);
184 det.SetRmisal(rmisal);
185
23197852 186 } // end loop on detectors
187 } // end loop on ladders
4fa7f7d1 188 fForceSkippingOfLayer[i] = 0;
23197852 189 } // end loop on layers
e43c066c 190
e43c066c 191
e50912db 192 fI=AliITSgeomTGeo::GetNLayers();
e43c066c 193
194 fPass=0;
195 fConstraint[0]=1; fConstraint[1]=0;
196
afd25725 197 Double_t xyzVtx[]={AliITSReconstructor::GetRecoParam()->GetXVdef(),
198 AliITSReconstructor::GetRecoParam()->GetYVdef(),
199 AliITSReconstructor::GetRecoParam()->GetZVdef()};
200 Double_t ersVtx[]={AliITSReconstructor::GetRecoParam()->GetSigmaXVdef(),
201 AliITSReconstructor::GetRecoParam()->GetSigmaYVdef(),
202 AliITSReconstructor::GetRecoParam()->GetSigmaZVdef()};
203 SetVertex(xyzVtx,ersVtx);
e43c066c 204
e50912db 205 fLastLayerToTrackTo=AliITSRecoParam::GetLastLayerToTrackTo();
628e7bb0 206 for (Int_t i=0;i<100000;i++){
207 fBestTrackIndex[i]=0;
208 }
afd25725 209
210 // store positions of centre of SPD modules (in z)
211 Double_t tr[3];
212 AliITSgeomTGeo::GetTranslation(1,1,1,tr);
213 fSPDdetzcentre[0] = tr[2];
214 AliITSgeomTGeo::GetTranslation(1,1,2,tr);
215 fSPDdetzcentre[1] = tr[2];
216 AliITSgeomTGeo::GetTranslation(1,1,3,tr);
217 fSPDdetzcentre[2] = tr[2];
218 AliITSgeomTGeo::GetTranslation(1,1,4,tr);
219 fSPDdetzcentre[3] = tr[2];
220
afd25725 221 fUseTGeo = AliITSReconstructor::GetRecoParam()->GetUseTGeoInTracker();
6518a6c5 222 if(AliITSReconstructor::GetRecoParam()->GetExtendedEtaAcceptance() && fUseTGeo!=1 && fUseTGeo!=3) {
223 AliWarning("fUseTGeo changed to 3 because fExtendedEtaAcceptance is kTRUE");
224 fUseTGeo = 3;
225 }
e50912db 226
227 for(Int_t i=0;i<2;i++) {fxOverX0Shield[i]=-1.;fxTimesRhoShield[i]=-1.;}
228 for(Int_t i=0;i<6;i++) {fxOverX0Layer[i]=-1.;fxTimesRhoLayer[i]=-1.;}
229
81e97e0d 230 fDebugStreamer = new TTreeSRedirector("ITSdebug.root");
231
7167ae53 232 // only for plane efficiency evaluation
58e8dc31 233 if (AliITSReconstructor::GetRecoParam()->GetComputePlaneEff() &&
234 AliITSReconstructor::GetRecoParam()->GetIPlanePlaneEff()>=0) {
0ed58a47 235 Int_t iplane=AliITSReconstructor::GetRecoParam()->GetIPlanePlaneEff();
1a64bda6 236 if(!AliITSReconstructor::GetRecoParam()->GetLayersToSkip(iplane)==1)
0ed58a47 237 AliWarning(Form("Evaluation of Plane Eff for layer %d will be attempted without removing it from tracker",iplane));
238 if (iplane<2) fPlaneEff = new AliITSPlaneEffSPD();
239 else if (iplane<4) fPlaneEff = new AliITSPlaneEffSDD();
240 else fPlaneEff = new AliITSPlaneEffSSD();
275a301c 241 if(AliITSReconstructor::GetRecoParam()->GetReadPlaneEffFromOCDB())
0ed58a47 242 if(!fPlaneEff->ReadFromCDB()) {AliWarning("AliITStrackerMI reading of AliITSPlaneEff from OCDB failed") ;}
243 if(AliITSReconstructor::GetRecoParam()->GetHistoPlaneEff()) fPlaneEff->SetCreateHistos(kTRUE);
7167ae53 244 }
628e7bb0 245}
44347160 246//------------------------------------------------------------------------
8221b41b 247AliITStrackerMI::AliITStrackerMI(const AliITStrackerMI &tracker):AliTracker(tracker),
248fI(tracker.fI),
249fBestTrack(tracker.fBestTrack),
250fTrackToFollow(tracker.fTrackToFollow),
251fTrackHypothesys(tracker.fTrackHypothesys),
252fBestHypothesys(tracker.fBestHypothesys),
253fOriginal(tracker.fOriginal),
254fCurrentEsdTrack(tracker.fCurrentEsdTrack),
255fPass(tracker.fPass),
256fAfterV0(tracker.fAfterV0),
257fLastLayerToTrackTo(tracker.fLastLayerToTrackTo),
afd25725 258fCoefficients(tracker.fCoefficients),
8221b41b 259fEsd(tracker.fEsd),
e50912db 260fTrackingPhase(tracker.fTrackingPhase),
afd25725 261fUseTGeo(tracker.fUseTGeo),
e50912db 262fNtracks(tracker.fNtracks),
263fxOverX0Pipe(tracker.fxOverX0Pipe),
264fxTimesRhoPipe(tracker.fxTimesRhoPipe),
265fxOverX0PipeTrks(0),
266fxTimesRhoPipeTrks(0),
267fxOverX0ShieldTrks(0),
268fxTimesRhoShieldTrks(0),
269fxOverX0LayerTrks(0),
270fxTimesRhoLayerTrks(0),
4a66240a 271fDebugStreamer(tracker.fDebugStreamer),
23197852 272fITSChannelStatus(tracker.fITSChannelStatus),
a70ed6ad 273fkDetTypeRec(tracker.fkDetTypeRec),
ae00569a 274fPlaneEff(tracker.fPlaneEff) {
8221b41b 275 //Copy constructor
e50912db 276 Int_t i;
277 for(i=0;i<4;i++) {
278 fSPDdetzcentre[i]=tracker.fSPDdetzcentre[i];
279 }
280 for(i=0;i<6;i++) {
281 fxOverX0Layer[i]=tracker.fxOverX0Layer[i];
282 fxTimesRhoLayer[i]=tracker.fxTimesRhoLayer[i];
283 }
284 for(i=0;i<2;i++) {
285 fxOverX0Shield[i]=tracker.fxOverX0Shield[i];
286 fxTimesRhoShield[i]=tracker.fxTimesRhoShield[i];
287 }
8221b41b 288}
44347160 289//------------------------------------------------------------------------
8221b41b 290AliITStrackerMI & AliITStrackerMI::operator=(const AliITStrackerMI &tracker){
291 //Assignment operator
292 this->~AliITStrackerMI();
293 new(this) AliITStrackerMI(tracker);
294 return *this;
295}
44347160 296//------------------------------------------------------------------------
628e7bb0 297AliITStrackerMI::~AliITStrackerMI()
298{
299 //
300 //destructor
301 //
e50912db 302 if (fCoefficients) delete [] fCoefficients;
303 DeleteTrksMaterialLUT();
81e97e0d 304 if (fDebugStreamer) {
305 //fDebugStreamer->Close();
306 delete fDebugStreamer;
307 }
23197852 308 if(fITSChannelStatus) delete fITSChannelStatus;
309 if(fPlaneEff) delete fPlaneEff;
e43c066c 310}
44347160 311//------------------------------------------------------------------------
23197852 312void AliITStrackerMI::ReadBadFromDetTypeRec() {
313 //--------------------------------------------------------------------
314 //This function read ITS bad detectors, chips, channels from AliITSDetTypeRec
315 //i.e. from OCDB
316 //--------------------------------------------------------------------
317
318 if(!AliITSReconstructor::GetRecoParam()->GetUseBadZonesFromOCDB()) return;
319
4187a601 320 Info("ReadBadFromDetTypeRec","Reading info about bad ITS detectors and channels");
23197852 321
a70ed6ad 322 if(!fkDetTypeRec) Error("ReadBadFromDetTypeRec","AliITSDetTypeRec nof found!\n");
23197852 323
324 // ITS channels map
325 if(fITSChannelStatus) delete fITSChannelStatus;
a70ed6ad 326 fITSChannelStatus = new AliITSChannelStatus(fkDetTypeRec);
23197852 327
328 // ITS detectors and chips
329 Int_t i=0,j=0,k=0,ndet=0;
330 for (i=1; i<AliITSgeomTGeo::GetNLayers()+1; i++) {
4187a601 331 Int_t nBadDetsPerLayer=0;
23197852 332 ndet=AliITSgeomTGeo::GetNDetectors(i);
333 for (j=1; j<AliITSgeomTGeo::GetNLadders(i)+1; j++) {
334 for (k=1; k<ndet+1; k++) {
335 AliITSdetector &det=fgLayers[i-1].GetDetector((j-1)*ndet + k-1);
a70ed6ad 336 det.ReadBadDetectorAndChips(i-1,(j-1)*ndet + k-1,fkDetTypeRec);
4187a601 337 if(det.IsBad()) {nBadDetsPerLayer++;}
23197852 338 } // end loop on detectors
339 } // end loop on ladders
4187a601 340 Info("ReadBadFromDetTypeRec",Form("Layer %d: %d bad out of %d",i-1,nBadDetsPerLayer,ndet*AliITSgeomTGeo::GetNLadders(i)));
23197852 341 } // end loop on layers
342
343 return;
344}
345//------------------------------------------------------------------------
e43c066c 346Int_t AliITStrackerMI::LoadClusters(TTree *cTree) {
347 //--------------------------------------------------------------------
348 //This function loads ITS clusters
349 //--------------------------------------------------------------------
2b295109 350
351 TClonesArray *clusters = NULL;
352 AliITSRecPointContainer* rpcont=AliITSRecPointContainer::Instance();
353 clusters=rpcont->FetchClusters(0,cTree);
354 if(!(rpcont->IsSPDActive() || rpcont->IsSDDActive() || rpcont->IsSSDActive())){
355 AliError("ITS is not in a known running configuration: SPD, SDD and SSD are not active");
356 return 1;
e43c066c 357 }
23197852 358 Int_t i=0,j=0,ndet=0;
e43c066c 359 Int_t detector=0;
23197852 360 for (i=0; i<AliITSgeomTGeo::GetNLayers(); i++) {
361 ndet=fgLayers[i].GetNdetectors();
e43c066c 362 Int_t jmax = j + fgLayers[i].GetNladders()*ndet;
363 for (; j<jmax; j++) {
2b295109 364 // if (!cTree->GetEvent(j)) continue;
365 clusters = rpcont->UncheckedGetClusters(j);
366 if(!clusters)continue;
e43c066c 367 Int_t ncl=clusters->GetEntriesFast();
368 SignDeltas(clusters,GetZ());
1f3e997f 369
e43c066c 370 while (ncl--) {
00a7cc50 371 AliITSRecPoint *c=(AliITSRecPoint*)clusters->UncheckedAt(ncl);
75fb37cc 372 detector=c->GetDetectorIndex();
a504d56f 373
75fb37cc 374 if (!c->Misalign()) AliWarning("Can't misalign this cluster !");
6262dd3d 375
376 Int_t retval = fgLayers[i].InsertCluster(new AliITSRecPoint(*c));
377 if(retval) {
378 AliWarning(Form("Too many clusters on layer %d!",i));
379 break;
380 }
e43c066c 381 }
6262dd3d 382
afd25725 383 // add dead zone "virtual" cluster in SPD, if there is a cluster within
384 // zwindow cm from the dead zone
385 if (i<2 && AliITSReconstructor::GetRecoParam()->GetAddVirtualClustersInDeadZone()) {
e50912db 386 for (Float_t xdead = 0; xdead < AliITSRecoParam::GetSPDdetxlength(); xdead += (i+1.)*AliITSReconstructor::GetRecoParam()->GetXPassDeadZoneHits()) {
afd25725 387 Int_t lab[4] = {0,0,0,detector};
388 Int_t info[3] = {0,0,i};
6518a6c5 389 Float_t q = 0.; // this identifies virtual clusters
afd25725 390 Float_t hit[5] = {xdead,
391 0.,
392 AliITSReconstructor::GetRecoParam()->GetSigmaXDeadZoneHit2(),
393 AliITSReconstructor::GetRecoParam()->GetSigmaZDeadZoneHit2(),
394 q};
395 Bool_t local = kTRUE;
396 Double_t zwindow = AliITSReconstructor::GetRecoParam()->GetZWindowDeadZone();
e50912db 397 hit[1] = fSPDdetzcentre[0]+0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 398 if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow)
399 fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local));
e50912db 400 hit[1] = fSPDdetzcentre[1]-0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 401 if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow)
402 fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local));
e50912db 403 hit[1] = fSPDdetzcentre[1]+0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 404 if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow)
405 fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local));
e50912db 406 hit[1] = fSPDdetzcentre[2]-0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 407 if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow)
408 fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local));
e50912db 409 hit[1] = fSPDdetzcentre[2]+0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 410 if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow)
411 fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local));
e50912db 412 hit[1] = fSPDdetzcentre[3]-0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 413 if (TMath::Abs(fgLayers[i].GetDetector(detector).GetZmax()-hit[1])<zwindow)
414 fgLayers[i].InsertCluster(new AliITSRecPoint(lab,hit,info,local));
e43c066c 415 }
6518a6c5 416 } // "virtual" clusters in SPD
e43c066c 417
418 }
419 //
420 fgLayers[i].ResetRoad(); //road defined by the cluster density
421 fgLayers[i].SortClusters();
422 }
423
4fa7f7d1 424 // check whether we have to skip some layers
425 SetForceSkippingOfLayer();
426
e43c066c 427 return 0;
428}
44347160 429//------------------------------------------------------------------------
e43c066c 430void AliITStrackerMI::UnloadClusters() {
431 //--------------------------------------------------------------------
432 //This function unloads ITS clusters
433 //--------------------------------------------------------------------
e50912db 434 for (Int_t i=0; i<AliITSgeomTGeo::GetNLayers(); i++) fgLayers[i].ResetClusters();
e43c066c 435}
44347160 436//------------------------------------------------------------------------
23197852 437void AliITStrackerMI::FillClusterArray(TObjArray* array) const {
438 //--------------------------------------------------------------------
439 // Publishes all pointers to clusters known to the tracker into the
440 // passed object array.
441 // The ownership is not transfered - the caller is not expected to delete
442 // the clusters.
443 //--------------------------------------------------------------------
444
445 for(Int_t i=0; i<AliITSgeomTGeo::GetNLayers(); i++) {
446 for(Int_t icl=0; icl<fgLayers[i].GetNumberOfClusters(); icl++) {
447 AliCluster *cl = (AliCluster*)fgLayers[i].GetCluster(icl);
448 array->AddLast(cl);
449 }
450 }
451
452 return;
453}
454//------------------------------------------------------------------------
44396017 455Int_t AliITStrackerMI::CorrectForTPCtoITSDeadZoneMaterial(AliITStrackMI *t) {
e43c066c 456 //--------------------------------------------------------------------
457 // Correction for the material between the TPC and the ITS
e43c066c 458 //--------------------------------------------------------------------
e50912db 459 if (t->GetX() > AliITSRecoParam::Getriw()) { // inward direction
460 if (!t->PropagateToTGeo(AliITSRecoParam::Getriw(),1)) return 0;// TPC inner wall
461 if (!t->PropagateToTGeo(AliITSRecoParam::Getrcd(),1)) return 0;// TPC central drum
462 if (!t->PropagateToTGeo(AliITSRecoParam::Getrs(),1)) return 0;// ITS screen
463 } else if (t->GetX() < AliITSRecoParam::Getrs()) { // outward direction
464 if (!t->PropagateToTGeo(AliITSRecoParam::Getrs(),1)) return 0;// ITS screen
465 if (!t->PropagateToTGeo(AliITSRecoParam::Getrcd(),1)) return 0;// TPC central drum
466 if (!t->PropagateToTGeo(AliITSRecoParam::Getriw()+0.001,1)) return 0;// TPC inner wall
e43c066c 467 } else {
44396017 468 printf("CorrectForTPCtoITSDeadZoneMaterial: Track is already in the dead zone !\n");
e50912db 469 return 0;
e43c066c 470 }
471
e50912db 472 return 1;
e43c066c 473}
44347160 474//------------------------------------------------------------------------
af885e0f 475Int_t AliITStrackerMI::Clusters2Tracks(AliESDEvent *event) {
e43c066c 476 //--------------------------------------------------------------------
477 // This functions reconstructs ITS tracks
478 // The clusters must be already loaded !
479 //--------------------------------------------------------------------
fddf8459 480
4fa7f7d1 481 AliDebug(2,Form("SKIPPING %d %d %d %d %d %d",ForceSkippingOfLayer(0),ForceSkippingOfLayer(1),ForceSkippingOfLayer(2),ForceSkippingOfLayer(3),ForceSkippingOfLayer(4),ForceSkippingOfLayer(5)));
fddf8459 482
e50912db 483 fTrackingPhase="Clusters2Tracks";
484
e43c066c 485 TObjArray itsTracks(15000);
628e7bb0 486 fOriginal.Clear();
81e97e0d 487 fEsd = event; // store pointer to the esd
afd25725 488
9a5326b1 489 // temporary (for cosmics)
490 if(event->GetVertex()) {
491 TString title = event->GetVertex()->GetTitle();
492 if(title.Contains("cosmics")) {
493 Double_t xyz[3]={GetX(),GetY(),GetZ()};
494 Double_t exyz[3]={0.1,0.1,0.1};
495 SetVertex(xyz,exyz);
496 }
497 }
498 // temporary
75a74b11 499 Int_t noesd = 0;
e43c066c 500 {/* Read ESD tracks */
afd25725 501 Double_t pimass = TDatabasePDG::Instance()->GetParticle(211)->Mass();
e43c066c 502 Int_t nentr=event->GetNumberOfTracks();
75a74b11 503 noesd=nentr;
504 // Info("Clusters2Tracks", "Number of ESD tracks: %d\n", nentr);
e43c066c 505 while (nentr--) {
506 AliESDtrack *esd=event->GetTrack(nentr);
4187a601 507 // ---- for debugging:
508 //if(TMath::Abs(esd->GetX()-83.65)<0.1) { FILE *f=fopen("tpc.dat","a"); fprintf(f,"%f %f %f %f %f %f\n",(Float_t)event->GetEventNumberInFile(),(Float_t)TMath::Abs(esd->GetLabel()),(Float_t)esd->GetX(),(Float_t)esd->GetY(),(Float_t)esd->GetZ(),(Float_t)esd->Pt()); fclose(f); }
e43c066c 509
510 if ((esd->GetStatus()&AliESDtrack::kTPCin)==0) continue;
511 if (esd->GetStatus()&AliESDtrack::kTPCout) continue;
512 if (esd->GetStatus()&AliESDtrack::kITSin) continue;
51ad6848 513 if (esd->GetKinkIndex(0)>0) continue; //kink daughter
15dd636f 514 AliITStrackMI *t=0;
e43c066c 515 try {
15dd636f 516 t=new AliITStrackMI(*esd);
e43c066c 517 } catch (const Char_t *msg) {
628e7bb0 518 //Warning("Clusters2Tracks",msg);
e43c066c 519 delete t;
520 continue;
521 }
b9671574 522 t->GetDZ(GetX(),GetY(),GetZ(),t->GetDP()); //I.B.
523 Double_t vdist = TMath::Sqrt(t->GetD(0)*t->GetD(0)+t->GetD(1)*t->GetD(1));
6518a6c5 524
525
afd25725 526 // look at the ESD mass hypothesys !
527 if (t->GetMass()<0.9*pimass) t->SetMass(pimass);
e43c066c 528 // write expected q
b9671574 529 t->SetExpQ(TMath::Max(0.8*t->GetESDtrack()->GetTPCsignal(),30.));
e43c066c 530
afd25725 531 if (esd->GetV0Index(0)>0 && t->GetD(0)<AliITSReconstructor::GetRecoParam()->GetMaxDforV0dghtrForProlongation()){
81e97e0d 532 //track - can be V0 according to TPC
afd25725 533 } else {
534 if (TMath::Abs(t->GetD(0))>AliITSReconstructor::GetRecoParam()->GetMaxDForProlongation()) {
81e97e0d 535 delete t;
536 continue;
e50912db 537 }
afd25725 538 if (TMath::Abs(vdist)>AliITSReconstructor::GetRecoParam()->GetMaxDZForProlongation()) {
81e97e0d 539 delete t;
540 continue;
541 }
6c23ffed 542 if (t->Pt()<AliITSReconstructor::GetRecoParam()->GetMinPtForProlongation()) {
81e97e0d 543 delete t;
544 continue;
545 }
e50912db 546 if (!CorrectForTPCtoITSDeadZoneMaterial(t)) {
81e97e0d 547 delete t;
548 continue;
549 }
e43c066c 550 }
b9671574 551 t->SetReconstructed(kFALSE);
e43c066c 552 itsTracks.AddLast(t);
628e7bb0 553 fOriginal.AddLast(t);
e43c066c 554 }
555 } /* End Read ESD tracks */
556
557 itsTracks.Sort();
628e7bb0 558 fOriginal.Sort();
e43c066c 559 Int_t nentr=itsTracks.GetEntriesFast();
560 fTrackHypothesys.Expand(nentr);
81e97e0d 561 fBestHypothesys.Expand(nentr);
afd25725 562 MakeCoefficients(nentr);
513ab112 563 if(fUseTGeo==3 || fUseTGeo==4) MakeTrksMaterialLUT(event->GetNumberOfTracks());
e43c066c 564 Int_t ntrk=0;
afd25725 565 // THE TWO TRACKING PASSES
e43c066c 566 for (fPass=0; fPass<2; fPass++) {
567 Int_t &constraint=fConstraint[fPass]; if (constraint<0) continue;
e50912db 568 for (fCurrentEsdTrack=0; fCurrentEsdTrack<nentr; fCurrentEsdTrack++) {
e50912db 569 AliITStrackMI *t=(AliITStrackMI*)itsTracks.UncheckedAt(fCurrentEsdTrack);
e43c066c 570 if (t==0) continue; //this track has been already tracked
1c97ce2f 571 //cout<<"========== "<<fPass<<" "<<fCurrentEsdTrack<<" =========\n";
b9671574 572 if (t->GetReconstructed()&&(t->GetNUsed()<1.5)) continue; //this track was already "succesfully" reconstructed
791f9a2a 573 Float_t dz[2]; t->GetDZ(GetX(),GetY(),GetZ(),dz); //I.B.
afd25725 574 if (fConstraint[fPass]) {
575 if (TMath::Abs(dz[0])>AliITSReconstructor::GetRecoParam()->GetMaxDZToUseConstraint() ||
576 TMath::Abs(dz[1])>AliITSReconstructor::GetRecoParam()->GetMaxDZToUseConstraint()) continue;
577 }
e43c066c 578
579 Int_t tpcLabel=t->GetLabel(); //save the TPC track label
4187a601 580 AliDebug(2,Form("LABEL %d pass %d",tpcLabel,fPass));
e43c066c 581 fI = 6;
582 ResetTrackToFollow(*t);
583 ResetBestTrack();
6518a6c5 584
e50912db 585 FollowProlongationTree(t,fCurrentEsdTrack,fConstraint[fPass]);
1c97ce2f 586
e43c066c 587
588 SortTrackHypothesys(fCurrentEsdTrack,20,0); //MI change
589 //
ae00569a 590 AliITStrackMI *besttrack = GetBestHypothesys(fCurrentEsdTrack,t,15);
e43c066c 591 if (!besttrack) continue;
592 besttrack->SetLabel(tpcLabel);
593 // besttrack->CookdEdx();
594 CookdEdx(besttrack);
b9671574 595 besttrack->SetFakeRatio(1.);
e43c066c 596 CookLabel(besttrack,0.); //For comparison only
e43c066c 597 UpdateESDtrack(besttrack,AliESDtrack::kITSin);
628e7bb0 598
628e7bb0 599 if (fConstraint[fPass]&&(!besttrack->IsGoldPrimary())) continue; //to be tracked also without vertex constrain
600
b9671574 601 t->SetReconstructed(kTRUE);
1c97ce2f 602 ntrk++;
4187a601 603 AliDebug(2,Form("TRACK! (label %d) ncls %d",besttrack->GetLabel(),besttrack->GetNumberOfClusters()));
e43c066c 604 }
605 GetBestHypothesysMIP(itsTracks);
afd25725 606 } // end loop on the two tracking passes
e43c066c 607
cd90f0a2 608 if(event->GetNumberOfV0s()>0) AliITSV0Finder::UpdateTPCV0(event,this);
609 if(AliITSReconstructor::GetRecoParam()->GetFindV0s()) AliITSV0Finder::FindV02(event,this);
628e7bb0 610 fAfterV0 = kTRUE;
628e7bb0 611 //
e43c066c 612 itsTracks.Delete();
613 //
614 Int_t entries = fTrackHypothesys.GetEntriesFast();
e50912db 615 for (Int_t ientry=0; ientry<entries; ientry++) {
e43c066c 616 TObjArray * array =(TObjArray*)fTrackHypothesys.UncheckedAt(ientry);
617 if (array) array->Delete();
618 delete fTrackHypothesys.RemoveAt(ientry);
619 }
620
621 fTrackHypothesys.Delete();
81e97e0d 622 fBestHypothesys.Delete();
628e7bb0 623 fOriginal.Clear();
afd25725 624 delete [] fCoefficients;
625 fCoefficients=0;
e50912db 626 DeleteTrksMaterialLUT();
627
75a74b11 628 AliInfo(Form("Number of prolonged tracks: %d out of %d ESD tracks",ntrk,noesd));
e50912db 629
630 fTrackingPhase="Default";
628e7bb0 631
e43c066c 632 return 0;
633}
44347160 634//------------------------------------------------------------------------
af885e0f 635Int_t AliITStrackerMI::PropagateBack(AliESDEvent *event) {
e43c066c 636 //--------------------------------------------------------------------
637 // This functions propagates reconstructed ITS tracks back
638 // The clusters must be loaded !
639 //--------------------------------------------------------------------
e50912db 640 fTrackingPhase="PropagateBack";
e43c066c 641 Int_t nentr=event->GetNumberOfTracks();
75a74b11 642 // Info("PropagateBack", "Number of ESD tracks: %d\n", nentr);
e43c066c 643
644 Int_t ntrk=0;
645 for (Int_t i=0; i<nentr; i++) {
646 AliESDtrack *esd=event->GetTrack(i);
647
648 if ((esd->GetStatus()&AliESDtrack::kITSin)==0) continue;
649 if (esd->GetStatus()&AliESDtrack::kITSout) continue;
650
15dd636f 651 AliITStrackMI *t=0;
e43c066c 652 try {
15dd636f 653 t=new AliITStrackMI(*esd);
e43c066c 654 } catch (const Char_t *msg) {
628e7bb0 655 //Warning("PropagateBack",msg);
e43c066c 656 delete t;
657 continue;
658 }
b9671574 659 t->SetExpQ(TMath::Max(0.8*t->GetESDtrack()->GetTPCsignal(),30.));
e43c066c 660
661 ResetTrackToFollow(*t);
4fa7f7d1 662
67178f34 663 /*
9a5326b1 664 // propagate to vertex [SR, GSI 17.02.2003]
e43c066c 665 // Start Time measurement [SR, GSI 17.02.2003], corrected by I.Belikov
e50912db 666 if (CorrectForPipeMaterial(&fTrackToFollow,"inward")) {
667 if (fTrackToFollow.PropagateToVertex(event->GetVertex()))
668 fTrackToFollow.StartTimeIntegral();
669 // from vertex to outside pipe
670 CorrectForPipeMaterial(&fTrackToFollow,"outward");
67178f34 671 }*/
672 // Start time integral and add distance from current position to vertex
673 Double_t xyzTrk[3],xyzVtx[3]={GetX(),GetY(),GetZ()};
674 fTrackToFollow.GetXYZ(xyzTrk);
675 Double_t dst2 = 0.;
676 for (Int_t icoord=0; icoord<3; icoord++) {
677 Double_t di = xyzTrk[icoord] - xyzVtx[icoord];
678 dst2 += di*di;
e43c066c 679 }
67178f34 680 fTrackToFollow.StartTimeIntegral();
681 fTrackToFollow.AddTimeStep(TMath::Sqrt(dst2));
e43c066c 682
6c94f330 683 fTrackToFollow.ResetCovariance(10.); fTrackToFollow.ResetClusters();
e50912db 684 if (RefitAt(AliITSRecoParam::GetrInsideITSscreen(),&fTrackToFollow,t)) {
685 if (!CorrectForTPCtoITSDeadZoneMaterial(&fTrackToFollow)) {
e43c066c 686 delete t;
687 continue;
688 }
689 fTrackToFollow.SetLabel(t->GetLabel());
690 //fTrackToFollow.CookdEdx();
691 CookLabel(&fTrackToFollow,0.); //For comparison only
692 fTrackToFollow.UpdateESDtrack(AliESDtrack::kITSout);
693 //UseClusters(&fTrackToFollow);
694 ntrk++;
695 }
696 delete t;
697 }
698
75a74b11 699 AliInfo(Form("Number of back propagated ITS tracks: %d out of %d ESD tracks",ntrk,nentr));
e43c066c 700
e50912db 701 fTrackingPhase="Default";
702
e43c066c 703 return 0;
704}
44347160 705//------------------------------------------------------------------------
af885e0f 706Int_t AliITStrackerMI::RefitInward(AliESDEvent *event) {
e43c066c 707 //--------------------------------------------------------------------
708 // This functions refits ITS tracks using the
709 // "inward propagated" TPC tracks
710 // The clusters must be loaded !
711 //--------------------------------------------------------------------
e50912db 712 fTrackingPhase="RefitInward";
44396017 713
cd90f0a2 714 if(AliITSReconstructor::GetRecoParam()->GetFindV0s()) AliITSV0Finder::RefitV02(event,this);
44396017 715
e43c066c 716 Int_t nentr=event->GetNumberOfTracks();
75a74b11 717 // Info("RefitInward", "Number of ESD tracks: %d\n", nentr);
e43c066c 718
719 Int_t ntrk=0;
720 for (Int_t i=0; i<nentr; i++) {
721 AliESDtrack *esd=event->GetTrack(i);
722
723 if ((esd->GetStatus()&AliESDtrack::kITSout) == 0) continue;
724 if (esd->GetStatus()&AliESDtrack::kITSrefit) continue;
725 if (esd->GetStatus()&AliESDtrack::kTPCout)
726 if ((esd->GetStatus()&AliESDtrack::kTPCrefit)==0) continue;
727
15dd636f 728 AliITStrackMI *t=0;
e43c066c 729 try {
15dd636f 730 t=new AliITStrackMI(*esd);
e43c066c 731 } catch (const Char_t *msg) {
628e7bb0 732 //Warning("RefitInward",msg);
e43c066c 733 delete t;
734 continue;
735 }
b9671574 736 t->SetExpQ(TMath::Max(0.8*t->GetESDtrack()->GetTPCsignal(),30.));
e50912db 737 if (!CorrectForTPCtoITSDeadZoneMaterial(t)) {
e43c066c 738 delete t;
739 continue;
740 }
741
742 ResetTrackToFollow(*t);
743 fTrackToFollow.ResetClusters();
744
745 if ((esd->GetStatus()&AliESDtrack::kTPCin)==0)
6c94f330 746 fTrackToFollow.ResetCovariance(10.);
e43c066c 747
748 //Refitting...
58e8dc31 749 Bool_t pe=(AliITSReconstructor::GetRecoParam()->GetComputePlaneEff() &&
750 AliITSReconstructor::GetRecoParam()->GetIPlanePlaneEff()>=0);
1a64bda6 751
4187a601 752 AliDebug(2,Form("Refit LABEL %d %d",t->GetLabel(),t->GetNumberOfClusters()));
7167ae53 753 if (RefitAt(AliITSRecoParam::GetrInsideSPD1(),&fTrackToFollow,t,kTRUE,pe)) {
4187a601 754 AliDebug(2," refit OK");
e43c066c 755 fTrackToFollow.SetLabel(t->GetLabel());
756 // fTrackToFollow.CookdEdx();
757 CookdEdx(&fTrackToFollow);
758
759 CookLabel(&fTrackToFollow,0.0); //For comparison only
760
9a5326b1 761 //The beam pipe
e50912db 762 if (CorrectForPipeMaterial(&fTrackToFollow,"inward")) {
ae00569a 763 fTrackToFollow.UpdateESDtrack(AliESDtrack::kITSrefit);
9a5326b1 764 AliESDtrack *esdTrack =fTrackToFollow.GetESDtrack();
ae00569a 765 //printf(" %d\n",esdTrack->GetITSModuleIndex(0));
766 //esdTrack->UpdateTrackParams(&fTrackToFollow,AliESDtrack::kITSrefit); //original line
f7a1cc68 767 Double_t r[3]={0.,0.,0.};
9a5326b1 768 Double_t maxD=3.;
769 esdTrack->RelateToVertex(event->GetVertex(),GetBz(r),maxD);
770 ntrk++;
e43c066c 771 }
772 }
773 delete t;
774 }
775
75a74b11 776 AliInfo(Form("Number of refitted tracks: %d out of %d ESD tracks",ntrk,nentr));
e43c066c 777
e50912db 778 fTrackingPhase="Default";
779
e43c066c 780 return 0;
781}
44347160 782//------------------------------------------------------------------------
e43c066c 783AliCluster *AliITStrackerMI::GetCluster(Int_t index) const {
784 //--------------------------------------------------------------------
785 // Return pointer to a given cluster
786 //--------------------------------------------------------------------
787 Int_t l=(index & 0xf0000000) >> 28;
788 Int_t c=(index & 0x0fffffff) >> 00;
789 return fgLayers[l].GetCluster(c);
790}
9a5326b1 791//------------------------------------------------------------------------
df29e9a4 792Bool_t AliITStrackerMI::GetTrackPoint(Int_t index, AliTrackPoint& p) const {
9a5326b1 793 //--------------------------------------------------------------------
df29e9a4 794 // Get track space point with index i
9a5326b1 795 //--------------------------------------------------------------------
60066577 796
78b03929 797 Int_t l=(index & 0xf0000000) >> 28;
798 Int_t c=(index & 0x0fffffff) >> 00;
00a7cc50 799 AliITSRecPoint *cl = fgLayers[l].GetCluster(c);
df29e9a4 800 Int_t idet = cl->GetDetectorIndex();
4e65ff9e 801
60066577 802 Float_t xyz[3];
803 Float_t cov[6];
804 cl->GetGlobalXYZ(xyz);
805 cl->GetGlobalCov(cov);
806 p.SetXYZ(xyz, cov);
be77c8c9 807 p.SetCharge(cl->GetQ());
ebbcf1ea 808 p.SetDriftTime(cl->GetDriftTime());
b7bcc8ed 809 p.SetChargeRatio(cl->GetChargeRatio());
e3901fd8 810 p.SetClusterType(cl->GetClusterType());
ae079791 811 AliGeomManager::ELayerID iLayer = AliGeomManager::kInvalidLayer;
df29e9a4 812 switch (l) {
813 case 0:
ae079791 814 iLayer = AliGeomManager::kSPD1;
df29e9a4 815 break;
816 case 1:
ae079791 817 iLayer = AliGeomManager::kSPD2;
df29e9a4 818 break;
819 case 2:
ae079791 820 iLayer = AliGeomManager::kSDD1;
df29e9a4 821 break;
822 case 3:
ae079791 823 iLayer = AliGeomManager::kSDD2;
9a5326b1 824 break;
825 case 4:
826 iLayer = AliGeomManager::kSSD1;
827 break;
828 case 5:
829 iLayer = AliGeomManager::kSSD2;
830 break;
831 default:
832 AliWarning(Form("Wrong layer index in ITS (%d) !",l));
833 break;
834 };
835 UShort_t volid = AliGeomManager::LayerToVolUID(iLayer,idet);
836 p.SetVolumeID((UShort_t)volid);
837 return kTRUE;
838}
839//------------------------------------------------------------------------
840Bool_t AliITStrackerMI::GetTrackPointTrackingError(Int_t index,
841 AliTrackPoint& p, const AliESDtrack *t) {
842 //--------------------------------------------------------------------
843 // Get track space point with index i
844 // (assign error estimated during the tracking)
845 //--------------------------------------------------------------------
846
847 Int_t l=(index & 0xf0000000) >> 28;
848 Int_t c=(index & 0x0fffffff) >> 00;
849 const AliITSRecPoint *cl = fgLayers[l].GetCluster(c);
850 Int_t idet = cl->GetDetectorIndex();
4187a601 851
9a5326b1 852 const AliITSdetector &det=fgLayers[l].GetDetector(idet);
853
854 // tgphi and tglambda of the track in tracking frame with alpha=det.GetPhi
855 Float_t detxy[2];
856 detxy[0] = det.GetR()*TMath::Cos(det.GetPhi());
857 detxy[1] = det.GetR()*TMath::Sin(det.GetPhi());
858 Double_t alpha = t->GetAlpha();
859 Double_t xdetintrackframe = detxy[0]*TMath::Cos(alpha)+detxy[1]*TMath::Sin(alpha);
9be1d1c7 860 Float_t phi = TMath::ASin(t->GetSnpAt(xdetintrackframe,GetBz()));
9a5326b1 861 phi += alpha-det.GetPhi();
862 Float_t tgphi = TMath::Tan(phi);
863
864 Float_t tgl = t->GetTgl(); // tgl about const along track
865 Float_t expQ = TMath::Max(0.8*t->GetTPCsignal(),30.);
866
d9ead1a0 867 Float_t errtrky,errtrkz,covyz;
8c139cf3 868 Bool_t addMisalErr=kFALSE;
d9ead1a0 869 AliITSClusterParam::GetError(l,cl,tgl,tgphi,expQ,errtrky,errtrkz,covyz,addMisalErr);
9a5326b1 870
871 Float_t xyz[3];
872 Float_t cov[6];
873 cl->GetGlobalXYZ(xyz);
874 // cl->GetGlobalCov(cov);
875 Float_t pos[3] = {0.,0.,0.};
d9ead1a0 876 AliCluster tmpcl((UShort_t)cl->GetVolumeId(),pos[0],pos[1],pos[2],errtrky*errtrky,errtrkz*errtrkz,covyz);
9a5326b1 877 tmpcl.GetGlobalCov(cov);
878
879 p.SetXYZ(xyz, cov);
be77c8c9 880 p.SetCharge(cl->GetQ());
ebbcf1ea 881 p.SetDriftTime(cl->GetDriftTime());
b7bcc8ed 882 p.SetChargeRatio(cl->GetChargeRatio());
e3901fd8 883 p.SetClusterType(cl->GetClusterType());
9a5326b1 884
885 AliGeomManager::ELayerID iLayer = AliGeomManager::kInvalidLayer;
886 switch (l) {
887 case 0:
888 iLayer = AliGeomManager::kSPD1;
889 break;
890 case 1:
891 iLayer = AliGeomManager::kSPD2;
892 break;
893 case 2:
894 iLayer = AliGeomManager::kSDD1;
895 break;
896 case 3:
897 iLayer = AliGeomManager::kSDD2;
df29e9a4 898 break;
899 case 4:
ae079791 900 iLayer = AliGeomManager::kSSD1;
df29e9a4 901 break;
902 case 5:
ae079791 903 iLayer = AliGeomManager::kSSD2;
df29e9a4 904 break;
905 default:
906 AliWarning(Form("Wrong layer index in ITS (%d) !",l));
907 break;
908 };
ae079791 909 UShort_t volid = AliGeomManager::LayerToVolUID(iLayer,idet);
4187a601 910
df29e9a4 911 p.SetVolumeID((UShort_t)volid);
912 return kTRUE;
913}
44347160 914//------------------------------------------------------------------------
81e97e0d 915void AliITStrackerMI::FollowProlongationTree(AliITStrackMI * otrack, Int_t esdindex, Bool_t constrain)
e43c066c 916{
917 //--------------------------------------------------------------------
918 // Follow prolongation tree
919 //--------------------------------------------------------------------
81e97e0d 920 //
afd25725 921 Double_t xyzVtx[]={GetX(),GetY(),GetZ()};
922 Double_t ersVtx[]={GetSigmaX(),GetSigmaY(),GetSigmaZ()};
923
2755f080 924
b9671574 925 AliESDtrack * esd = otrack->GetESDtrack();
afd25725 926 if (esd->GetV0Index(0)>0) {
81e97e0d 927 // TEMPORARY SOLLUTION: map V0 indexes to point to proper track
afd25725 928 // mapping of ESD track is different as ITS track in Containers
81e97e0d 929 // Need something more stable
44347160 930 // Indexes are set back again to the ESD track indexes in UpdateTPCV0
81e97e0d 931 for (Int_t i=0;i<3;i++){
932 Int_t index = esd->GetV0Index(i);
933 if (index==0) break;
d6a49f20 934 AliESDv0 * vertex = fEsd->GetV0(index);
81e97e0d 935 if (vertex->GetStatus()<0) continue; // rejected V0
936 //
afd25725 937 if (esd->GetSign()>0) {
938 vertex->SetIndex(0,esdindex);
939 } else {
940 vertex->SetIndex(1,esdindex);
941 }
81e97e0d 942 }
943 }
944 TObjArray *bestarray = (TObjArray*)fBestHypothesys.At(esdindex);
945 if (!bestarray){
946 bestarray = new TObjArray(5);
947 fBestHypothesys.AddAt(bestarray,esdindex);
948 }
e43c066c 949
81e97e0d 950 //
e43c066c 951 //setup tree of the prolongations
952 //
15dd636f 953 static AliITStrackMI tracks[7][100];
954 AliITStrackMI *currenttrack;
955 static AliITStrackMI currenttrack1;
956 static AliITStrackMI currenttrack2;
957 static AliITStrackMI backuptrack;
e43c066c 958 Int_t ntracks[7];
959 Int_t nindexes[7][100];
960 Float_t normalizedchi2[100];
961 for (Int_t ilayer=0;ilayer<6;ilayer++) ntracks[ilayer]=0;
b9671574 962 otrack->SetNSkipped(0);
15dd636f 963 new (&(tracks[6][0])) AliITStrackMI(*otrack);
e43c066c 964 ntracks[6]=1;
81e97e0d 965 for (Int_t i=0;i<7;i++) nindexes[i][0]=0;
ae00569a 966 Int_t modstatus = 1; // found
967 Float_t xloc,zloc;
e43c066c 968 //
969 //
970 // follow prolongations
e50912db 971 for (Int_t ilayer=5; ilayer>=0; ilayer--) {
4187a601 972 AliDebug(2,Form("FollowProlongationTree: layer %d",ilayer));
2755f080 973 fI = ilayer;
e43c066c 974 //
2755f080 975 AliITSlayer &layer=fgLayers[ilayer];
976 Double_t r = layer.GetR();
e43c066c 977 ntracks[ilayer]=0;
978 //
979 //
2755f080 980 Int_t nskipped=0;
e43c066c 981 Float_t nused =0;
e50912db 982 for (Int_t itrack =0; itrack<ntracks[ilayer+1]; itrack++) {
e43c066c 983 //set current track
984 if (ntracks[ilayer]>=100) break;
b9671574 985 if (tracks[ilayer+1][nindexes[ilayer+1][itrack]].GetNSkipped()>0) nskipped++;
986 if (tracks[ilayer+1][nindexes[ilayer+1][itrack]].GetNUsed()>2.) nused++;
e43c066c 987 if (ntracks[ilayer]>15+ilayer){
b9671574 988 if (itrack>1&&tracks[ilayer+1][nindexes[ilayer+1][itrack]].GetNSkipped()>0 && nskipped>4+ilayer) continue;
989 if (itrack>1&&tracks[ilayer+1][nindexes[ilayer+1][itrack]].GetNUsed()>2. && nused>3) continue;
e43c066c 990 }
991
15dd636f 992 new(&currenttrack1) AliITStrackMI(tracks[ilayer+1][nindexes[ilayer+1][itrack]]);
44347160 993
afd25725 994 // material between SSD and SDD, SDD and SPD
e50912db 995 if (ilayer==3)
996 if(!CorrectForShieldMaterial(&currenttrack1,"SDD","inward")) continue;
997 if (ilayer==1)
998 if(!CorrectForShieldMaterial(&currenttrack1,"SPD","inward")) continue;
8602c008 999
2755f080 1000 // detector number
8602c008 1001 Double_t phi,z;
1002 if (!currenttrack1.GetPhiZat(r,phi,z)) continue;
e43c066c 1003 Int_t idet=layer.FindDetectorIndex(phi,z);
e50912db 1004
1005 Double_t trackGlobXYZ1[3];
d1181f10 1006 if (!currenttrack1.GetXYZ(trackGlobXYZ1)) continue;
e50912db 1007
2755f080 1008 // Get the budget to the primary vertex for the current track being prolonged
1009 Double_t budgetToPrimVertex = GetEffectiveThickness();
1010
1011 // check if we allow a prolongation without point
6518a6c5 1012 Int_t skip = CheckSkipLayer(&currenttrack1,ilayer,idet);
2755f080 1013 if (skip) {
1014 AliITStrackMI* vtrack = new (&tracks[ilayer][ntracks[ilayer]]) AliITStrackMI(currenttrack1);
6518a6c5 1015 // propagate to the layer radius
d1181f10 1016 Double_t xToGo; if (!vtrack->GetLocalXat(r,xToGo)) continue;
9be1d1c7 1017 if(!vtrack->Propagate(xToGo)) continue;
2755f080 1018 // apply correction for material of the current layer
1019 CorrectForLayerMaterial(vtrack,ilayer,trackGlobXYZ1,"inward");
1020 vtrack->SetNDeadZone(vtrack->GetNDeadZone()+1);
f8720bda 1021 vtrack->SetDeadZoneProbability(ilayer,1.); // no penalty for missing cluster
9fd412a8 1022 vtrack->SetClIndex(ilayer,-1);
ae00569a 1023 modstatus = (skip==1 ? 3 : 4); // skipped : out in z
d1181f10 1024 if(LocalModuleCoord(ilayer,idet,vtrack,xloc,zloc)) { // local module coords
1025 vtrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
1026 }
2755f080 1027 if(constrain) vtrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx);
1028 ntracks[ilayer]++;
6518a6c5 1029 continue;
2755f080 1030 }
1031
1032 // track outside layer acceptance in z
1033 if (idet<0) continue;
1034
1035 //propagate to the intersection with the detector plane
1036 const AliITSdetector &det=layer.GetDetector(idet);
1037 new(&currenttrack2) AliITStrackMI(currenttrack1);
44347160 1038 if (!currenttrack1.Propagate(det.GetPhi(),det.GetR())) continue;
d1181f10 1039 if (!currenttrack2.Propagate(det.GetPhi(),det.GetR())) continue;
e43c066c 1040 currenttrack1.SetDetectorIndex(idet);
1041 currenttrack2.SetDetectorIndex(idet);
d1181f10 1042 if(!LocalModuleCoord(ilayer,idet,&currenttrack1,xloc,zloc)) continue; // local module coords
6518a6c5 1043
afd25725 1044 //***************
1c97ce2f 1045 // DEFINITION OF SEARCH ROAD AND CLUSTERS SELECTION
e43c066c 1046 //
2755f080 1047 // road in global (rphi,z) [i.e. in tracking ref. system]
1c97ce2f 1048 Double_t zmin,zmax,ymin,ymax;
1049 if (!ComputeRoad(&currenttrack1,ilayer,idet,zmin,zmax,ymin,ymax)) continue;
2755f080 1050
afd25725 1051 // select clusters in road
e43c066c 1052 layer.SelectClusters(zmin,zmax,ymin,ymax);
afd25725 1053 //********************
44347160 1054
afd25725 1055 // Define criteria for track-cluster association
44347160 1056 Double_t msz = currenttrack1.GetSigmaZ2() +
1057 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
1058 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
1059 AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer);
1060 Double_t msy = currenttrack1.GetSigmaY2() +
1061 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
1062 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
1063 AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer);
1064 if (constrain) {
1065 msz *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadZC();
1066 msy *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadYC();
1067 } else {
1068 msz *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadZNonC();
1069 msy *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadYNonC();
1070 }
1071 msz = 1./msz; // 1/RoadZ^2
1072 msy = 1./msy; // 1/RoadY^2
1c97ce2f 1073
e43c066c 1074 //
e43c066c 1075 //
afd25725 1076 // LOOP OVER ALL POSSIBLE TRACK PROLONGATIONS ON THIS LAYER
e43c066c 1077 //
afd25725 1078 const AliITSRecPoint *cl=0;
1079 Int_t clidx=-1;
1080 Double_t chi2trkcl=AliITSReconstructor::GetRecoParam()->GetMaxChi2(); // init with big value
6518a6c5 1081 Bool_t deadzoneSPD=kFALSE;
e43c066c 1082 currenttrack = &currenttrack1;
6518a6c5 1083
ae00569a 1084 // check if the road contains a dead zone
23197852 1085 Bool_t noClusters = kFALSE;
1086 if (!layer.GetNextCluster(clidx,kTRUE)) noClusters=kTRUE;
4187a601 1087 if (noClusters) AliDebug(2,"no clusters in road");
1c97ce2f 1088 Double_t dz=0.5*(zmax-zmin);
1089 Double_t dy=0.5*(ymax-ymin);
1090 Int_t dead = CheckDeadZone(&currenttrack1,ilayer,idet,dz,dy,noClusters);
4187a601 1091 if(dead) AliDebug(2,Form("DEAD (%d)\n",dead));
ae00569a 1092 // create a prolongation without clusters (check also if there are no clusters in the road)
1093 if (dead ||
23197852 1094 (noClusters &&
ae00569a 1095 AliITSReconstructor::GetRecoParam()->GetAllowProlongationWithEmptyRoad())) {
6518a6c5 1096 AliITStrackMI * updatetrack = new (&tracks[ilayer][ntracks[ilayer]]) AliITStrackMI(*currenttrack);
9fd412a8 1097 updatetrack->SetClIndex(ilayer,-1);
ae00569a 1098 if (dead==0) {
1099 modstatus = 5; // no cls in road
1100 } else if (dead==1) {
1101 modstatus = 7; // holes in z in SPD
f8720bda 1102 } else if (dead==2 || dead==3 || dead==4) {
ae00569a 1103 modstatus = 2; // dead from OCDB
1104 }
1105 updatetrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
6518a6c5 1106 // apply correction for material of the current layer
1107 CorrectForLayerMaterial(updatetrack,ilayer,trackGlobXYZ1,"inward");
1108 if (constrain) { // apply vertex constrain
1109 updatetrack->SetConstrain(constrain);
1110 Bool_t isPrim = kTRUE;
1111 if (ilayer<4) { // check that it's close to the vertex
1112 updatetrack->GetDZ(GetX(),GetY(),GetZ(),updatetrack->GetDP()); //I.B.
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;
1117 }
1118 if (isPrim) updatetrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx);
1119 }
f8720bda 1120 updatetrack->SetNDeadZone(updatetrack->GetNDeadZone()+1);
ae00569a 1121 if (dead) {
ae00569a 1122 if (dead==1) { // dead zone at z=0,+-7cm in SPD
f8720bda 1123 updatetrack->SetDeadZoneProbability(ilayer,GetSPDDeadZoneProbability(updatetrack->GetZ(),TMath::Sqrt(updatetrack->GetSigmaZ2())));
ae00569a 1124 deadzoneSPD=kTRUE;
f8720bda 1125 } else if (dead==2 || dead==3) { // dead module or chip from OCDB
1126 updatetrack->SetDeadZoneProbability(ilayer,1.);
1127 } else if (dead==4) { // at least a single dead channel from OCDB
1128 updatetrack->SetDeadZoneProbability(ilayer,0.);
1129 }
6518a6c5 1130 }
1131 ntracks[ilayer]++;
1132 }
1133
ae00569a 1134 clidx=-1;
6518a6c5 1135 // loop over clusters in the road
afd25725 1136 while ((cl=layer.GetNextCluster(clidx))!=0) {
e43c066c 1137 if (ntracks[ilayer]>95) break; //space for skipped clusters
afd25725 1138 Bool_t changedet =kFALSE;
6518a6c5 1139 if (cl->GetQ()==0 && deadzoneSPD==kTRUE) continue;
a5d0fae6 1140 Int_t idetc=cl->GetDetectorIndex();
afd25725 1141
a5d0fae6 1142 if (currenttrack->GetDetectorIndex()==idetc) { // track already on the cluster's detector
1c97ce2f 1143 // take into account misalignment (bring track to real detector plane)
1144 Double_t xTrOrig = currenttrack->GetX();
9be1d1c7 1145 if (!currenttrack->Propagate(xTrOrig+cl->GetX())) continue;
afd25725 1146 // a first cut on track-cluster distance
1147 if ( (currenttrack->GetZ()-cl->GetZ())*(currenttrack->GetZ()-cl->GetZ())*msz +
1148 (currenttrack->GetY()-cl->GetY())*(currenttrack->GetY()-cl->GetY())*msy > 1. )
1c97ce2f 1149 { // cluster not associated to track
4187a601 1150 AliDebug(2,"not associated");
1c97ce2f 1151 continue;
1152 }
1153 // bring track back to ideal detector plane
9be1d1c7 1154 if (!currenttrack->Propagate(xTrOrig)) continue;
afd25725 1155 } else { // have to move track to cluster's detector
a5d0fae6 1156 const AliITSdetector &detc=layer.GetDetector(idetc);
afd25725 1157 // a first cut on track-cluster distance
a5d0fae6 1158 Double_t y;
1c97ce2f 1159 if (!currenttrack2.GetProlongationFast(detc.GetPhi(),detc.GetR()+cl->GetX(),y,z)) continue;
afd25725 1160 if ( (z-cl->GetZ())*(z-cl->GetZ())*msz +
1161 (y-cl->GetY())*(y-cl->GetY())*msy > 1. )
44347160 1162 continue; // cluster not associated to track
e43c066c 1163 //
15dd636f 1164 new (&backuptrack) AliITStrackMI(currenttrack2);
afd25725 1165 changedet = kTRUE;
e43c066c 1166 currenttrack =&currenttrack2;
a5d0fae6 1167 if (!currenttrack->Propagate(detc.GetPhi(),detc.GetR())) {
15dd636f 1168 new (currenttrack) AliITStrackMI(backuptrack);
afd25725 1169 changedet = kFALSE;
e43c066c 1170 continue;
1171 }
a5d0fae6 1172 currenttrack->SetDetectorIndex(idetc);
e50912db 1173 // Get again the budget to the primary vertex
1174 // for the current track being prolonged, if had to change detector
1175 //budgetToPrimVertex = GetEffectiveThickness();// not needed at the moment because anyway we take a mean material for this correction
e43c066c 1176 }
1177
afd25725 1178 // calculate track-clusters chi2
1179 chi2trkcl = GetPredictedChi2MI(currenttrack,cl,ilayer);
1180 // chi2 cut
4187a601 1181 AliDebug(2,Form("chi2 %f max %f",chi2trkcl,AliITSReconstructor::GetRecoParam()->GetMaxChi2s(ilayer)));
afd25725 1182 if (chi2trkcl < AliITSReconstructor::GetRecoParam()->GetMaxChi2s(ilayer)) {
6518a6c5 1183 if (cl->GetQ()==0) deadzoneSPD=kTRUE; // only 1 prolongation with virtual cluster
e43c066c 1184 if (ntracks[ilayer]>=100) continue;
15dd636f 1185 AliITStrackMI * updatetrack = new (&tracks[ilayer][ntracks[ilayer]]) AliITStrackMI(*currenttrack);
9fd412a8 1186 updatetrack->SetClIndex(ilayer,-1);
afd25725 1187 if (changedet) new (&currenttrack2) AliITStrackMI(backuptrack);
ae00569a 1188
6518a6c5 1189 if (cl->GetQ()!=0) { // real cluster
1c97ce2f 1190 if (!UpdateMI(updatetrack,cl,chi2trkcl,(ilayer<<28)+clidx)) {
4187a601 1191 AliDebug(2,"update failed");
1c97ce2f 1192 continue;
1193 }
09cf9d66 1194 updatetrack->SetSampledEdx(cl->GetQ(),ilayer-2);
ae00569a 1195 modstatus = 1; // found
6518a6c5 1196 } else { // virtual cluster in dead zone
b9671574 1197 updatetrack->SetNDeadZone(updatetrack->GetNDeadZone()+1);
f8720bda 1198 updatetrack->SetDeadZoneProbability(ilayer,GetSPDDeadZoneProbability(updatetrack->GetZ(),TMath::Sqrt(updatetrack->GetSigmaZ2())));
ae00569a 1199 modstatus = 7; // holes in z in SPD
1200 }
1201
1202 if (changedet) {
1203 Float_t xlocnewdet,zlocnewdet;
d1181f10 1204 if(LocalModuleCoord(ilayer,idet,updatetrack,xlocnewdet,zlocnewdet)) { // local module coords
1205 updatetrack->SetModuleIndexInfo(ilayer,idet,modstatus,xlocnewdet,zlocnewdet);
1206 }
ae00569a 1207 } else {
1208 updatetrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
e43c066c 1209 }
afd25725 1210 if (cl->IsUsed()) updatetrack->IncrementNUsed();
1211
1212 // apply correction for material of the current layer
e50912db 1213 CorrectForLayerMaterial(updatetrack,ilayer,trackGlobXYZ1,"inward");
1214
afd25725 1215 if (constrain) { // apply vertex constrain
b9671574 1216 updatetrack->SetConstrain(constrain);
e43c066c 1217 Bool_t isPrim = kTRUE;
afd25725 1218 if (ilayer<4) { // check that it's close to the vertex
b9671574 1219 updatetrack->GetDZ(GetX(),GetY(),GetZ(),updatetrack->GetDP()); //I.B.
afd25725 1220 if (TMath::Abs(updatetrack->GetD(0)/(1.+ilayer)) > // y
1221 AliITSReconstructor::GetRecoParam()->GetMaxDZforPrimTrk() ||
1222 TMath::Abs(updatetrack->GetD(1)/(1.+ilayer)) > // z
1223 AliITSReconstructor::GetRecoParam()->GetMaxDZforPrimTrk()) isPrim=kFALSE;
e43c066c 1224 }
afd25725 1225 if (isPrim) updatetrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx);
e43c066c 1226 } //apply vertex constrain
1227 ntracks[ilayer]++;
afd25725 1228 } // create new hypothesis
4187a601 1229 else {
1230 AliDebug(2,"chi2 too large");
1231 }
1232
2755f080 1233 } // loop over possible prolongations
1234
1235 // allow one prolongation without clusters
6518a6c5 1236 if (constrain && itrack<=1 && currenttrack1.GetNSkipped()==0 && deadzoneSPD==kFALSE && ntracks[ilayer]<100) {
15dd636f 1237 AliITStrackMI* vtrack = new (&tracks[ilayer][ntracks[ilayer]]) AliITStrackMI(currenttrack1);
2755f080 1238 // apply correction for material of the current layer
1239 CorrectForLayerMaterial(vtrack,ilayer,trackGlobXYZ1,"inward");
9fd412a8 1240 vtrack->SetClIndex(ilayer,-1);
ae00569a 1241 modstatus = 3; // skipped
1242 vtrack->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
afd25725 1243 vtrack->Improve(budgetToPrimVertex,xyzVtx,ersVtx);
b9671574 1244 vtrack->IncrementNSkipped();
e43c066c 1245 ntracks[ilayer]++;
1246 }
1247
6262dd3d 1248
e50912db 1249 } // loop over tracks in layer ilayer+1
afd25725 1250
1251 //loop over track candidates for the current layer
e43c066c 1252 //
1253 //
1254 Int_t accepted=0;
1255
afd25725 1256 Int_t golden=0;
e43c066c 1257 for (Int_t itrack=0;itrack<ntracks[ilayer];itrack++){
1258 normalizedchi2[itrack] = NormalizedChi2(&tracks[ilayer][itrack],ilayer);
afd25725 1259 if (normalizedchi2[itrack] <
1260 AliITSReconstructor::GetRecoParam()->GetMaxNormChi2ForGolden(ilayer)) golden++;
44347160 1261 if (ilayer>4) {
1262 accepted++;
1263 } else {
1264 if (constrain) { // constrain
afd25725 1265 if (normalizedchi2[itrack]<AliITSReconstructor::GetRecoParam()->GetMaxNormChi2C(ilayer)+1)
1266 accepted++;
44347160 1267 } else { // !constrain
afd25725 1268 if (normalizedchi2[itrack]<AliITSReconstructor::GetRecoParam()->GetMaxNormChi2NonC(ilayer)+1)
1269 accepted++;
44347160 1270 }
e43c066c 1271 }
1272 }
afd25725 1273 // sort tracks by increasing normalized chi2
1274 TMath::Sort(ntracks[ilayer],normalizedchi2,nindexes[ilayer],kFALSE);
e43c066c 1275 ntracks[ilayer] = TMath::Min(accepted,7+2*ilayer);
afd25725 1276 if (ntracks[ilayer]<golden+2+ilayer) ntracks[ilayer]=TMath::Min(golden+2+ilayer,accepted);
e43c066c 1277 if (ntracks[ilayer]>90) ntracks[ilayer]=90;
afd25725 1278 } // end loop over layers
1279
afd25725 1280
1281 //
1282 // Now select tracks to be kept
1283 //
44347160 1284 Int_t max = constrain ? 20 : 5;
e43c066c 1285
afd25725 1286 // tracks that reach layer 0 (SPD inner)
44347160 1287 for (Int_t i=0; i<TMath::Min(max,ntracks[0]); i++) {
15dd636f 1288 AliITStrackMI & track= tracks[0][nindexes[0][i]];
628e7bb0 1289 if (track.GetNumberOfClusters()<2) continue;
afd25725 1290 if (!constrain && track.GetNormChi2(0) >
6518a6c5 1291 AliITSReconstructor::GetRecoParam()->GetMaxNormChi2NonCForHypothesis()) {
1292 continue;
1293 }
15dd636f 1294 AddTrackHypothesys(new AliITStrackMI(track), esdindex);
e43c066c 1295 }
afd25725 1296
1297 // tracks that reach layer 1 (SPD outer)
628e7bb0 1298 for (Int_t i=0;i<TMath::Min(2,ntracks[1]);i++) {
15dd636f 1299 AliITStrackMI & track= tracks[1][nindexes[1][i]];
e43c066c 1300 if (track.GetNumberOfClusters()<4) continue;
afd25725 1301 if (!constrain && track.GetNormChi2(1) >
1302 AliITSReconstructor::GetRecoParam()->GetMaxNormChi2NonCForHypothesis()) continue;
b9671574 1303 if (constrain) track.IncrementNSkipped();
81e97e0d 1304 if (!constrain) {
b9671574 1305 track.SetD(0,track.GetD(GetX(),GetY()));
afd25725 1306 track.SetNSkipped(track.GetNSkipped()+4./(4.+8.*TMath::Abs(track.GetD(0))));
b9671574 1307 if (track.GetNumberOfClusters()+track.GetNDeadZone()+track.GetNSkipped()>6) {
1308 track.SetNSkipped(6-track.GetNumberOfClusters()+track.GetNDeadZone());
e43c066c 1309 }
1310 }
15dd636f 1311 AddTrackHypothesys(new AliITStrackMI(track), esdindex);
e43c066c 1312 }
afd25725 1313
6518a6c5 1314 // tracks that reach layer 2 (SDD inner), only during non-constrained pass
81e97e0d 1315 if (!constrain){
628e7bb0 1316 for (Int_t i=0;i<TMath::Min(2,ntracks[2]);i++) {
15dd636f 1317 AliITStrackMI & track= tracks[2][nindexes[2][i]];
628e7bb0 1318 if (track.GetNumberOfClusters()<3) continue;
afd25725 1319 if (!constrain && track.GetNormChi2(2) >
1320 AliITSReconstructor::GetRecoParam()->GetMaxNormChi2NonCForHypothesis()) continue;
b9671574 1321 if (constrain) track.SetNSkipped(track.GetNSkipped()+2);
81e97e0d 1322 if (!constrain){
b9671574 1323 track.SetD(0,track.GetD(GetX(),GetY()));
afd25725 1324 track.SetNSkipped(track.GetNSkipped()+7./(7.+8.*TMath::Abs(track.GetD(0))));
b9671574 1325 if (track.GetNumberOfClusters()+track.GetNDeadZone()+track.GetNSkipped()>6) {
1326 track.SetNSkipped(6-track.GetNumberOfClusters()+track.GetNDeadZone());
e43c066c 1327 }
1328 }
15dd636f 1329 AddTrackHypothesys(new AliITStrackMI(track), esdindex);
e43c066c 1330 }
1331 }
81e97e0d 1332
afd25725 1333 if (!constrain) {
81e97e0d 1334 //
afd25725 1335 // register best track of each layer - important for V0 finder
81e97e0d 1336 //
1337 for (Int_t ilayer=0;ilayer<5;ilayer++){
1338 if (ntracks[ilayer]==0) continue;
1339 AliITStrackMI & track= tracks[ilayer][nindexes[ilayer][0]];
1340 if (track.GetNumberOfClusters()<1) continue;
1341 CookLabel(&track,0);
1342 bestarray->AddAt(new AliITStrackMI(track),ilayer);
1343 }
1344 }
1345 //
1346 // update TPC V0 information
1347 //
b9671574 1348 if (otrack->GetESDtrack()->GetV0Index(0)>0){
81e97e0d 1349 Float_t fprimvertex[3]={GetX(),GetY(),GetZ()};
1350 for (Int_t i=0;i<3;i++){
b9671574 1351 Int_t index = otrack->GetESDtrack()->GetV0Index(i);
81e97e0d 1352 if (index==0) break;
44347160 1353 AliV0 *vertex = (AliV0*)fEsd->GetV0(index);
81e97e0d 1354 if (vertex->GetStatus()<0) continue; // rejected V0
1355 //
6c94f330 1356 if (otrack->GetSign()>0) {
81e97e0d 1357 vertex->SetIndex(0,esdindex);
1358 }
1359 else{
1360 vertex->SetIndex(1,esdindex);
1361 }
1362 //find nearest layer with track info
b75d63a7 1363 Double_t xrp[3]; vertex->GetXYZ(xrp[0],xrp[1],xrp[2]); //I.B.
1364 Int_t nearestold = GetNearestLayer(xrp); //I.B.
81e97e0d 1365 Int_t nearest = nearestold;
1366 for (Int_t ilayer =nearest;ilayer<8;ilayer++){
1367 if (ntracks[nearest]==0){
1368 nearest = ilayer;
1369 }
1370 }
1371 //
1372 AliITStrackMI & track= tracks[nearest][nindexes[nearest][0]];
1373 if (nearestold<5&&nearest<5){
b9671574 1374 Bool_t accept = track.GetNormChi2(nearest)<10;
81e97e0d 1375 if (accept){
6c94f330 1376 if (track.GetSign()>0) {
b75d63a7 1377 vertex->SetParamP(track);
81e97e0d 1378 vertex->Update(fprimvertex);
44347160 1379 //vertex->SetIndex(0,track.fESDtrack->GetID());
81e97e0d 1380 if (track.GetNumberOfClusters()>2) AddTrackHypothesys(new AliITStrackMI(track), esdindex);
1381 }else{
b75d63a7 1382 vertex->SetParamN(track);
81e97e0d 1383 vertex->Update(fprimvertex);
1384 //vertex->SetIndex(1,track.fESDtrack->GetID());
1385 if (track.GetNumberOfClusters()>2) AddTrackHypothesys(new AliITStrackMI(track), esdindex);
1386 }
1387 vertex->SetStatus(vertex->GetStatus()+1);
1388 }else{
44347160 1389 //vertex->SetStatus(-2); // reject V0 - not enough clusters
81e97e0d 1390 }
1391 }
81e97e0d 1392 }
afd25725 1393 }
1394
e43c066c 1395}
44347160 1396//------------------------------------------------------------------------
e43c066c 1397AliITStrackerMI::AliITSlayer & AliITStrackerMI::GetLayer(Int_t layer) const
1398{
1399 //--------------------------------------------------------------------
1400 //
1401 //
1402 return fgLayers[layer];
1403}
44347160 1404//------------------------------------------------------------------------
8221b41b 1405AliITStrackerMI::AliITSlayer::AliITSlayer():
1406fR(0),
1407fPhiOffset(0),
1408fNladders(0),
1409fZOffset(0),
1410fNdetectors(0),
1411fDetectors(0),
1412fN(0),
1413fDy5(0),
1414fDy10(0),
1415fDy20(0),
1416fClustersCs(0),
1417fClusterIndexCs(0),
1418fYcs(0),
1419fZcs(0),
1420fNcs(0),
1421fCurrentSlice(-1),
d9ead1a0 1422fZmin(0),
8221b41b 1423fZmax(0),
1424fYmin(0),
1425fYmax(0),
1426fI(0),
1427fImax(0),
1428fSkip(0),
1429fAccepted(0),
d9ead1a0 1430fRoad(0),
1431fMaxSigmaClY(0),
1432fMaxSigmaClZ(0),
1433fNMaxSigmaCl(3)
1434{
e43c066c 1435 //--------------------------------------------------------------------
1436 //default AliITSlayer constructor
1437 //--------------------------------------------------------------------
e50912db 1438 for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++) {
e43c066c 1439 fClusterWeight[i]=0;
1440 fClusterTracks[0][i]=-1;
1441 fClusterTracks[1][i]=-1;
1442 fClusterTracks[2][i]=-1;
1443 fClusterTracks[3][i]=-1;
1444 }
1445}
44347160 1446//------------------------------------------------------------------------
e43c066c 1447AliITStrackerMI::AliITSlayer::
8221b41b 1448AliITSlayer(Double_t r,Double_t p,Double_t z,Int_t nl,Int_t nd):
1449fR(r),
1450fPhiOffset(p),
1451fNladders(nl),
1452fZOffset(z),
1453fNdetectors(nd),
1454fDetectors(0),
1455fN(0),
1456fDy5(0),
1457fDy10(0),
1458fDy20(0),
1459fClustersCs(0),
1460fClusterIndexCs(0),
1461fYcs(0),
1462fZcs(0),
1463fNcs(0),
1464fCurrentSlice(-1),
d9ead1a0 1465fZmin(0),
8221b41b 1466fZmax(0),
1467fYmin(0),
1468fYmax(0),
1469fI(0),
1470fImax(0),
1471fSkip(0),
1472fAccepted(0),
d9ead1a0 1473fRoad(0),
1474fMaxSigmaClY(0),
1475fMaxSigmaClZ(0),
1476fNMaxSigmaCl(3) {
e43c066c 1477 //--------------------------------------------------------------------
1478 //main AliITSlayer constructor
1479 //--------------------------------------------------------------------
e43c066c 1480 fDetectors=new AliITSdetector[fNladders*fNdetectors];
afd25725 1481 fRoad=2*fR*TMath::Sqrt(TMath::Pi()/1.);//assuming that there's only one cluster
e43c066c 1482}
44347160 1483//------------------------------------------------------------------------
8221b41b 1484AliITStrackerMI::AliITSlayer::AliITSlayer(const AliITSlayer& layer):
1485fR(layer.fR),
1486fPhiOffset(layer.fPhiOffset),
1487fNladders(layer.fNladders),
1488fZOffset(layer.fZOffset),
1489fNdetectors(layer.fNdetectors),
1490fDetectors(layer.fDetectors),
1491fN(layer.fN),
1492fDy5(layer.fDy5),
1493fDy10(layer.fDy10),
1494fDy20(layer.fDy20),
1495fClustersCs(layer.fClustersCs),
1496fClusterIndexCs(layer.fClusterIndexCs),
1497fYcs(layer.fYcs),
1498fZcs(layer.fZcs),
1499fNcs(layer.fNcs),
1500fCurrentSlice(layer.fCurrentSlice),
d9ead1a0 1501fZmin(layer.fZmin),
8221b41b 1502fZmax(layer.fZmax),
1503fYmin(layer.fYmin),
1504fYmax(layer.fYmax),
1505fI(layer.fI),
1506fImax(layer.fImax),
1507fSkip(layer.fSkip),
1508fAccepted(layer.fAccepted),
d9ead1a0 1509fRoad(layer.fRoad),
1510fMaxSigmaClY(layer.fMaxSigmaClY),
1511fMaxSigmaClZ(layer.fMaxSigmaClZ),
1512fNMaxSigmaCl(layer.fNMaxSigmaCl)
1513{
8221b41b 1514 //Copy constructor
1515}
44347160 1516//------------------------------------------------------------------------
e43c066c 1517AliITStrackerMI::AliITSlayer::~AliITSlayer() {
1518 //--------------------------------------------------------------------
1519 // AliITSlayer destructor
1520 //--------------------------------------------------------------------
23197852 1521 delete [] fDetectors;
e43c066c 1522 for (Int_t i=0; i<fN; i++) delete fClusters[i];
e50912db 1523 for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++) {
e43c066c 1524 fClusterWeight[i]=0;
1525 fClusterTracks[0][i]=-1;
1526 fClusterTracks[1][i]=-1;
1527 fClusterTracks[2][i]=-1;
1528 fClusterTracks[3][i]=-1;
1529 }
1530}
44347160 1531//------------------------------------------------------------------------
e43c066c 1532void AliITStrackerMI::AliITSlayer::ResetClusters() {
1533 //--------------------------------------------------------------------
1534 // This function removes loaded clusters
1535 //--------------------------------------------------------------------
1536 for (Int_t i=0; i<fN; i++) delete fClusters[i];
e50912db 1537 for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++){
e43c066c 1538 fClusterWeight[i]=0;
1539 fClusterTracks[0][i]=-1;
1540 fClusterTracks[1][i]=-1;
1541 fClusterTracks[2][i]=-1;
1542 fClusterTracks[3][i]=-1;
1543 }
1544
1545 fN=0;
1546 fI=0;
1547}
44347160 1548//------------------------------------------------------------------------
e43c066c 1549void AliITStrackerMI::AliITSlayer::ResetWeights() {
1550 //--------------------------------------------------------------------
1551 // This function reset weights of the clusters
1552 //--------------------------------------------------------------------
e50912db 1553 for (Int_t i=0; i<AliITSRecoParam::GetMaxClusterPerLayer(); i++) {
e43c066c 1554 fClusterWeight[i]=0;
1555 fClusterTracks[0][i]=-1;
1556 fClusterTracks[1][i]=-1;
1557 fClusterTracks[2][i]=-1;
1558 fClusterTracks[3][i]=-1;
1559 }
1560 for (Int_t i=0; i<fN;i++) {
00a7cc50 1561 AliITSRecPoint * cl = (AliITSRecPoint*)GetCluster(i);
e43c066c 1562 if (cl&&cl->IsUsed()) cl->Use();
1563 }
1564
1565}
44347160 1566//------------------------------------------------------------------------
e43c066c 1567void AliITStrackerMI::AliITSlayer::ResetRoad() {
1568 //--------------------------------------------------------------------
1569 // This function calculates the road defined by the cluster density
1570 //--------------------------------------------------------------------
1571 Int_t n=0;
1572 for (Int_t i=0; i<fN; i++) {
1573 if (TMath::Abs(fClusters[i]->GetZ())<fR) n++;
1574 }
afd25725 1575 if (n>1) fRoad=2*fR*TMath::Sqrt(TMath::Pi()/n);
e43c066c 1576}
44347160 1577//------------------------------------------------------------------------
afd25725 1578Int_t AliITStrackerMI::AliITSlayer::InsertCluster(AliITSRecPoint *cl) {
e43c066c 1579 //--------------------------------------------------------------------
1580 //This function adds a cluster to this layer
1581 //--------------------------------------------------------------------
e50912db 1582 if (fN==AliITSRecoParam::GetMaxClusterPerLayer()) {
e43c066c 1583 return 1;
1584 }
1585 fCurrentSlice=-1;
afd25725 1586 fClusters[fN]=cl;
1d4090b7 1587 fN++;
afd25725 1588 AliITSdetector &det=GetDetector(cl->GetDetectorIndex());
d9ead1a0 1589 //AD
1590 Double_t nSigmaY=fNMaxSigmaCl*TMath::Sqrt(cl->GetSigmaY2());
1591 Double_t nSigmaZ=fNMaxSigmaCl*TMath::Sqrt(cl->GetSigmaZ2());
1592 if (cl->GetY()-nSigmaY<det.GetYmin()) det.SetYmin(cl->GetY()-nSigmaY);
1593 if (cl->GetY()+nSigmaY>det.GetYmax()) det.SetYmax(cl->GetY()+nSigmaY);
1594 if (cl->GetZ()-nSigmaZ<det.GetZmin()) det.SetZmin(cl->GetZ()-nSigmaZ);
1595 if (cl->GetZ()+nSigmaZ>det.GetZmax()) det.SetZmax(cl->GetZ()+nSigmaZ);
1596 //AD
1597 /*
afd25725 1598 if (cl->GetY()<det.GetYmin()) det.SetYmin(cl->GetY());
1599 if (cl->GetY()>det.GetYmax()) det.SetYmax(cl->GetY());
1600 if (cl->GetZ()<det.GetZmin()) det.SetZmin(cl->GetZ());
1601 if (cl->GetZ()>det.GetZmax()) det.SetZmax(cl->GetZ());
d9ead1a0 1602 */
e43c066c 1603 return 0;
1604}
44347160 1605//------------------------------------------------------------------------
e43c066c 1606void AliITStrackerMI::AliITSlayer::SortClusters()
1607{
1608 //
1609 //sort clusters
1610 //
00a7cc50 1611 AliITSRecPoint **clusters = new AliITSRecPoint*[fN];
1d4090b7 1612 Float_t *z = new Float_t[fN];
1613 Int_t * index = new Int_t[fN];
1614 //
d9ead1a0 1615 fMaxSigmaClY=0.; //AD
1616 fMaxSigmaClZ=0.; //AD
1617
1d4090b7 1618 for (Int_t i=0;i<fN;i++){
1619 z[i] = fClusters[i]->GetZ();
d9ead1a0 1620 // save largest errors in y and z for this layer
1621 fMaxSigmaClY=TMath::Max(fMaxSigmaClY,TMath::Sqrt(fClusters[i]->GetSigmaY2()));
1622 fMaxSigmaClZ=TMath::Max(fMaxSigmaClZ,TMath::Sqrt(fClusters[i]->GetSigmaZ2()));
1d4090b7 1623 }
1624 TMath::Sort(fN,z,index,kFALSE);
1625 for (Int_t i=0;i<fN;i++){
1626 clusters[i] = fClusters[index[i]];
1627 }
1628 //
1629 for (Int_t i=0;i<fN;i++){
1630 fClusters[i] = clusters[i];
1631 fZ[i] = fClusters[i]->GetZ();
1632 AliITSdetector &det=GetDetector(fClusters[i]->GetDetectorIndex());
1633 Double_t y=fR*det.GetPhi() + fClusters[i]->GetY();
1634 if (y>2.*fR*TMath::Pi()) y -= 2.*fR*TMath::Pi();
1635 fY[i] = y;
1636 }
1637 delete[] index;
1638 delete[] z;
1639 delete[] clusters;
1640 //
1641
e43c066c 1642 fYB[0]=10000000;
1643 fYB[1]=-10000000;
1644 for (Int_t i=0;i<fN;i++){
1645 if (fY[i]<fYB[0]) fYB[0]=fY[i];
1646 if (fY[i]>fYB[1]) fYB[1]=fY[i];
1647 fClusterIndex[i] = i;
1648 }
1649 //
1650 // fill slices
1651 fDy5 = (fYB[1]-fYB[0])/5.;
1652 fDy10 = (fYB[1]-fYB[0])/10.;
1653 fDy20 = (fYB[1]-fYB[0])/20.;
1654 for (Int_t i=0;i<6;i++) fN5[i] =0;
1655 for (Int_t i=0;i<11;i++) fN10[i]=0;
1656 for (Int_t i=0;i<21;i++) fN20[i]=0;
1657 //
1658 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;}
1659 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;}
1660 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;}
1661 //
1662 //
1d4090b7 1663 for (Int_t i=0;i<fN;i++)
1664 for (Int_t irot=-1;irot<=1;irot++){
1665 Float_t curY = fY[i]+irot*TMath::TwoPi()*fR;
1666 // slice 5
1667 for (Int_t slice=0; slice<6;slice++){
e50912db 1668 if (fBy5[slice][0]<curY && curY<fBy5[slice][1]&&fN5[slice]<AliITSRecoParam::GetMaxClusterPerLayer5()){
1d4090b7 1669 fClusters5[slice][fN5[slice]] = fClusters[i];
1670 fY5[slice][fN5[slice]] = curY;
1671 fZ5[slice][fN5[slice]] = fZ[i];
1672 fClusterIndex5[slice][fN5[slice]]=i;
1673 fN5[slice]++;
1674 }
e43c066c 1675 }
1d4090b7 1676 // slice 10
1677 for (Int_t slice=0; slice<11;slice++){
e50912db 1678 if (fBy10[slice][0]<curY && curY<fBy10[slice][1]&&fN10[slice]<AliITSRecoParam::GetMaxClusterPerLayer10()){
1d4090b7 1679 fClusters10[slice][fN10[slice]] = fClusters[i];
1680 fY10[slice][fN10[slice]] = curY;
1681 fZ10[slice][fN10[slice]] = fZ[i];
1682 fClusterIndex10[slice][fN10[slice]]=i;
1683 fN10[slice]++;
1684 }
e43c066c 1685 }
1d4090b7 1686 // slice 20
1687 for (Int_t slice=0; slice<21;slice++){
e50912db 1688 if (fBy20[slice][0]<curY && curY<fBy20[slice][1]&&fN20[slice]<AliITSRecoParam::GetMaxClusterPerLayer20()){
1d4090b7 1689 fClusters20[slice][fN20[slice]] = fClusters[i];
1690 fY20[slice][fN20[slice]] = curY;
1691 fZ20[slice][fN20[slice]] = fZ[i];
1692 fClusterIndex20[slice][fN20[slice]]=i;
1693 fN20[slice]++;
1694 }
1695 }
e43c066c 1696 }
1d4090b7 1697
1698 //
1699 // consistency check
1700 //
1701 for (Int_t i=0;i<fN-1;i++){
1702 if (fZ[i]>fZ[i+1]){
ae00569a 1703 printf("Bug\n");
e43c066c 1704 }
1705 }
1d4090b7 1706 //
1707 for (Int_t slice=0;slice<21;slice++)
1708 for (Int_t i=0;i<fN20[slice]-1;i++){
1709 if (fZ20[slice][i]>fZ20[slice][i+1]){
ae00569a 1710 printf("Bug\n");
1d4090b7 1711 }
1712 }
1713
1714
e43c066c 1715}
44347160 1716//------------------------------------------------------------------------
e43c066c 1717Int_t AliITStrackerMI::AliITSlayer::FindClusterIndex(Float_t z) const {
1718 //--------------------------------------------------------------------
1719 // This function returns the index of the nearest cluster
1720 //--------------------------------------------------------------------
1721 Int_t ncl=0;
1722 const Float_t *zcl;
1723 if (fCurrentSlice<0) {
1724 ncl = fN;
1725 zcl = fZ;
1726 }
1727 else{
1728 ncl = fNcs;
1729 zcl = fZcs;;
1730 }
1731
1732 if (ncl==0) return 0;
1733 Int_t b=0, e=ncl-1, m=(b+e)/2;
1734 for (; b<e; m=(b+e)/2) {
1735 // if (z > fClusters[m]->GetZ()) b=m+1;
1736 if (z > zcl[m]) b=m+1;
1737 else e=m;
1738 }
1739 return m;
1740}
44347160 1741//------------------------------------------------------------------------
1c97ce2f 1742Bool_t AliITStrackerMI::ComputeRoad(AliITStrackMI* track,Int_t ilayer,Int_t idet,Double_t &zmin,Double_t &zmax,Double_t &ymin,Double_t &ymax) const {
1743 //--------------------------------------------------------------------
1744 // This function computes the rectangular road for this track
1745 //--------------------------------------------------------------------
1746
1747
1748 AliITSdetector &det = fgLayers[ilayer].GetDetector(idet);
1749 // take into account the misalignment: propagate track to misaligned detector plane
1750 if (!track->Propagate(det.GetPhi(),det.GetRmisal())) return kFALSE;
1751
1752 Double_t dz=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadZ()*
1753 TMath::Sqrt(track->GetSigmaZ2() +
1754 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
1755 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
1756 AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer));
1757 Double_t dy=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadY()*
1758 TMath::Sqrt(track->GetSigmaY2() +
1759 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
1760 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
1761 AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer));
1762
1763 // track at boundary between detectors, enlarge road
1764 Double_t boundaryWidth=AliITSRecoParam::GetBoundaryWidth();
1765 if ( (track->GetY()-dy < det.GetYmin()+boundaryWidth) ||
1766 (track->GetY()+dy > det.GetYmax()-boundaryWidth) ||
1767 (track->GetZ()-dz < det.GetZmin()+boundaryWidth) ||
1768 (track->GetZ()+dz > det.GetZmax()-boundaryWidth) ) {
1769 Float_t tgl = TMath::Abs(track->GetTgl());
1770 if (tgl > 1.) tgl=1.;
1771 Double_t deltaXNeighbDets=AliITSRecoParam::GetDeltaXNeighbDets();
1772 dz = TMath::Sqrt(dz*dz+deltaXNeighbDets*deltaXNeighbDets*tgl*tgl);
1773 Float_t snp = TMath::Abs(track->GetSnp());
1774 if (snp > AliITSReconstructor::GetRecoParam()->GetMaxSnp()) return kFALSE;
1775 dy = TMath::Sqrt(dy*dy+deltaXNeighbDets*deltaXNeighbDets*snp*snp);
1776 } // boundary
1777
1778 // add to the road a term (up to 2-3 mm) to deal with misalignments
1779 dy = TMath::Sqrt(dy*dy + AliITSReconstructor::GetRecoParam()->GetRoadMisal()*AliITSReconstructor::GetRecoParam()->GetRoadMisal());
1780 dz = TMath::Sqrt(dz*dz + AliITSReconstructor::GetRecoParam()->GetRoadMisal()*AliITSReconstructor::GetRecoParam()->GetRoadMisal());
1781
1782 Double_t r = fgLayers[ilayer].GetR();
1783 zmin = track->GetZ() - dz;
1784 zmax = track->GetZ() + dz;
1785 ymin = track->GetY() + r*det.GetPhi() - dy;
1786 ymax = track->GetY() + r*det.GetPhi() + dy;
1787
1788 // bring track back to idead detector plane
1789 if (!track->Propagate(det.GetPhi(),det.GetR())) return kFALSE;
1790
1791 return kTRUE;
1792}
1793//------------------------------------------------------------------------
e43c066c 1794void AliITStrackerMI::AliITSlayer::
1795SelectClusters(Double_t zmin,Double_t zmax,Double_t ymin, Double_t ymax) {
1796 //--------------------------------------------------------------------
1797 // This function sets the "window"
1798 //--------------------------------------------------------------------
1799
628e7bb0 1800 Double_t circle=2*TMath::Pi()*fR;
d9ead1a0 1801 fYmin = ymin;
1802 fYmax = ymax;
1803 fZmin = zmin;
1804 fZmax = zmax;
1805 // AD
1806 // enlarge road in y by maximum cluster error on this layer (3 sigma)
1807 fYmin -= fNMaxSigmaCl*fMaxSigmaClY;
1808 fYmax += fNMaxSigmaCl*fMaxSigmaClY;
1809 fZmin -= fNMaxSigmaCl*fMaxSigmaClZ;
1810 fZmax += fNMaxSigmaCl*fMaxSigmaClZ;
1811
e43c066c 1812 Float_t ymiddle = (fYmin+fYmax)*0.5;
ae00569a 1813 if (ymiddle<fYB[0]) {
1814 fYmin+=circle; fYmax+=circle; ymiddle+=circle;
1815 } else if (ymiddle>fYB[1]) {
1816 fYmin-=circle; fYmax-=circle; ymiddle-=circle;
e43c066c 1817 }
ae00569a 1818
e43c066c 1819 //
1820 fCurrentSlice =-1;
1821 // defualt take all
1822 fClustersCs = fClusters;
1823 fClusterIndexCs = fClusterIndex;
1824 fYcs = fY;
1825 fZcs = fZ;
1826 fNcs = fN;
628e7bb0 1827 //
e43c066c 1828 //is in 20 slice?
1829 if (fCurrentSlice<0&&TMath::Abs(fYmax-fYmin)<1.49*fDy20){
1830 Int_t slice = int(0.5+(ymiddle-fYB[0])/fDy20);
1831 if (slice<0) slice=0;
1832 if (slice>20) slice=20;
1833 Bool_t isOK = (fYmin>fBy20[slice][0]&&fYmax<fBy20[slice][1]);
1834 if (isOK) {
1835 fCurrentSlice=slice;
1836 fClustersCs = fClusters20[fCurrentSlice];
1837 fClusterIndexCs = fClusterIndex20[fCurrentSlice];
1838 fYcs = fY20[fCurrentSlice];
1839 fZcs = fZ20[fCurrentSlice];
1840 fNcs = fN20[fCurrentSlice];
1841 }
1842 }
1843 //
1844 //is in 10 slice?
1845 if (fCurrentSlice<0&&TMath::Abs(fYmax-fYmin)<1.49*fDy10){
1846 Int_t slice = int(0.5+(ymiddle-fYB[0])/fDy10);
1847 if (slice<0) slice=0;
1848 if (slice>10) slice=10;
1849 Bool_t isOK = (fYmin>fBy10[slice][0]&&fYmax<fBy10[slice][1]);
1850 if (isOK) {
1851 fCurrentSlice=slice;
1852 fClustersCs = fClusters10[fCurrentSlice];
1853 fClusterIndexCs = fClusterIndex10[fCurrentSlice];
1854 fYcs = fY10[fCurrentSlice];
1855 fZcs = fZ10[fCurrentSlice];
1856 fNcs = fN10[fCurrentSlice];
1857 }
1858 }
1859 //
1860 //is in 5 slice?
1861 if (fCurrentSlice<0&&TMath::Abs(fYmax-fYmin)<1.49*fDy5){
1862 Int_t slice = int(0.5+(ymiddle-fYB[0])/fDy5);
1863 if (slice<0) slice=0;
1864 if (slice>5) slice=5;
1865 Bool_t isOK = (fYmin>fBy5[slice][0]&&fYmax<fBy5[slice][1]);
ae00569a 1866 if (isOK) {
e43c066c 1867 fCurrentSlice=slice;
1868 fClustersCs = fClusters5[fCurrentSlice];
1869 fClusterIndexCs = fClusterIndex5[fCurrentSlice];
1870 fYcs = fY5[fCurrentSlice];
1871 fZcs = fZ5[fCurrentSlice];
1872 fNcs = fN5[fCurrentSlice];
1873 }
1874 }
628e7bb0 1875 //
d9ead1a0 1876 fI = FindClusterIndex(fZmin);
1877 fImax = TMath::Min(FindClusterIndex(fZmax)+1,fNcs);
1878 fSkip = 0;
1879 fAccepted = 0;
6518a6c5 1880
1881 return;
e43c066c 1882}
44347160 1883//------------------------------------------------------------------------
628e7bb0 1884Int_t AliITStrackerMI::AliITSlayer::
1885FindDetectorIndex(Double_t phi, Double_t z) const {
1886 //--------------------------------------------------------------------
1887 //This function finds the detector crossed by the track
1888 //--------------------------------------------------------------------
31fb8575 1889 Double_t dphi;
1890 if (fZOffset<0) // old geometry
1891 dphi = -(phi-fPhiOffset);
1892 else // new geometry
1893 dphi = phi-fPhiOffset;
1894
6518a6c5 1895
628e7bb0 1896 if (dphi < 0) dphi += 2*TMath::Pi();
1897 else if (dphi >= 2*TMath::Pi()) dphi -= 2*TMath::Pi();
1898 Int_t np=Int_t(dphi*fNladders*0.5/TMath::Pi()+0.5);
1899 if (np>=fNladders) np-=fNladders;
1900 if (np<0) np+=fNladders;
1901
6518a6c5 1902
628e7bb0 1903 Double_t dz=fZOffset-z;
6518a6c5 1904 Double_t nnz = dz*(fNdetectors-1)*0.5/fZOffset+0.5;
1905 Int_t nz = (nnz<0 ? -1 : (Int_t)nnz);
628e7bb0 1906 if (nz>=fNdetectors) return -1;
1907 if (nz<0) return -1;
1908
23197852 1909 // ad hoc correction for 3rd ladder of SDD inner layer,
1910 // which is reversed (rotated by pi around local y)
1911 // this correction is OK only from AliITSv11Hybrid onwards
1912 if (GetR()>12. && GetR()<20.) { // SDD inner
1913 if(np==2) { // 3rd ladder
6801b453 1914 Double_t posMod252[3];
1915 AliITSgeomTGeo::GetTranslation(252,posMod252);
1916 // check the Z coordinate of Mod 252: if negative
1917 // (old SDD geometry in AliITSv11Hybrid)
1918 // the swap of numeration whould be applied
1919 if(posMod252[2]<0.){
1920 nz = (fNdetectors-1) - nz;
1921 }
1922 }
23197852 1923 }
1924 //printf("ndet %d phi %f z %f np %d nz %d\n",fNdetectors,phi,z,np,nz);
1925
1926
628e7bb0 1927 return np*fNdetectors + nz;
1928}
44347160 1929//------------------------------------------------------------------------
ae00569a 1930const AliITSRecPoint *AliITStrackerMI::AliITSlayer::GetNextCluster(Int_t &ci,Bool_t test)
1931{
e43c066c 1932 //--------------------------------------------------------------------
1933 // This function returns clusters within the "window"
1934 //--------------------------------------------------------------------
1935
ae00569a 1936 if (fCurrentSlice<0) {
e43c066c 1937 Double_t rpi2 = 2.*fR*TMath::Pi();
1938 for (Int_t i=fI; i<fImax; i++) {
1939 Double_t y = fY[i];
d9ead1a0 1940 Double_t z = fZ[i];
e43c066c 1941 if (fYmax<y) y -= rpi2;
1d4090b7 1942 if (fYmin>y) y += rpi2;
e43c066c 1943 if (y<fYmin) continue;
1944 if (y>fYmax) continue;
d9ead1a0 1945 // AD
1946 // skip clusters that are in "extended" road but they
1947 // 3sigma error does not touch the original road
1948 if (z+fNMaxSigmaCl*TMath::Sqrt(fClusters[i]->GetSigmaZ2())<fZmin+fNMaxSigmaCl*fMaxSigmaClZ) continue;
1949 if (z-fNMaxSigmaCl*TMath::Sqrt(fClusters[i]->GetSigmaZ2())>fZmax-fNMaxSigmaCl*fMaxSigmaClZ) continue;
1950 //
e43c066c 1951 if (fClusters[i]->GetQ()==0&&fSkip==2) continue;
1952 ci=i;
ae00569a 1953 if (!test) fI=i+1;
e43c066c 1954 return fClusters[i];
1955 }
ae00569a 1956 } else {
e43c066c 1957 for (Int_t i=fI; i<fImax; i++) {
1958 if (fYcs[i]<fYmin) continue;
1959 if (fYcs[i]>fYmax) continue;
1960 if (fClustersCs[i]->GetQ()==0&&fSkip==2) continue;
1961 ci=fClusterIndexCs[i];
ae00569a 1962 if (!test) fI=i+1;
e43c066c 1963 return fClustersCs[i];
1964 }
1965 }
1966 return 0;
1967}
44347160 1968//------------------------------------------------------------------------
e43c066c 1969Double_t AliITStrackerMI::AliITSlayer::GetThickness(Double_t y,Double_t z,Double_t &x0)
1970const {
1971 //--------------------------------------------------------------------
afd25725 1972 // This function returns the layer thickness at this point (units X0)
e43c066c 1973 //--------------------------------------------------------------------
1974 Double_t d=0.0085;
e50912db 1975 x0=AliITSRecoParam::GetX0Air();
e43c066c 1976 if (43<fR&&fR<45) { //SSD2
1977 Double_t dd=0.0034;
1978 d=dd;
1979 if (TMath::Abs(y-0.00)>3.40) d+=dd;
1980 if (TMath::Abs(y-1.90)<0.45) {d+=(0.013-0.0034);}
1981 if (TMath::Abs(y+1.90)<0.45) {d+=(0.013-0.0034);}
1982 for (Int_t i=0; i<12; i++) {
1983 if (TMath::Abs(z-3.9*(i+0.5))<0.15) {
1984 if (TMath::Abs(y-0.00)>3.40) d+=dd;
1985 d+=0.0034;
1986 break;
1987 }
1988 if (TMath::Abs(z+3.9*(i+0.5))<0.15) {
1989 if (TMath::Abs(y-0.00)>3.40) d+=dd;
1990 d+=0.0034;
1991 break;
1992 }
1993 if (TMath::Abs(z-3.4-3.9*i)<0.50) {d+=(0.016-0.0034); break;}
1994 if (TMath::Abs(z+0.5+3.9*i)<0.50) {d+=(0.016-0.0034); break;}
1995 }
1996 } else
1997 if (37<fR&&fR<41) { //SSD1
1998 Double_t dd=0.0034;
1999 d=dd;
2000 if (TMath::Abs(y-0.00)>3.40) d+=dd;
2001 if (TMath::Abs(y-1.90)<0.45) {d+=(0.013-0.0034);}
2002 if (TMath::Abs(y+1.90)<0.45) {d+=(0.013-0.0034);}
2003 for (Int_t i=0; i<11; i++) {
2004 if (TMath::Abs(z-3.9*i)<0.15) {
2005 if (TMath::Abs(y-0.00)>3.40) d+=dd;
2006 d+=dd;
2007 break;
2008 }
2009 if (TMath::Abs(z+3.9*i)<0.15) {
2010 if (TMath::Abs(y-0.00)>3.40) d+=dd;
2011 d+=dd;
2012 break;
2013 }
2014 if (TMath::Abs(z-1.85-3.9*i)<0.50) {d+=(0.016-0.0034); break;}
2015 if (TMath::Abs(z+2.05+3.9*i)<0.50) {d+=(0.016-0.0034); break;}
2016 }
2017 } else
2018 if (13<fR&&fR<26) { //SDD
2019 Double_t dd=0.0033;
2020 d=dd;
2021 if (TMath::Abs(y-0.00)>3.30) d+=dd;
2022
2023 if (TMath::Abs(y-1.80)<0.55) {
2024 d+=0.016;
2025 for (Int_t j=0; j<20; j++) {
2026 if (TMath::Abs(z+0.7+1.47*j)<0.12) {d+=0.08; x0=9.; break;}
2027 if (TMath::Abs(z-0.7-1.47*j)<0.12) {d+=0.08; x0=9.; break;}
2028 }
2029 }
2030 if (TMath::Abs(y+1.80)<0.55) {
2031 d+=0.016;
2032 for (Int_t j=0; j<20; j++) {
2033 if (TMath::Abs(z-0.7-1.47*j)<0.12) {d+=0.08; x0=9.; break;}
2034 if (TMath::Abs(z+0.7+1.47*j)<0.12) {d+=0.08; x0=9.; break;}
2035 }
2036 }
2037
2038 for (Int_t i=0; i<4; i++) {
2039 if (TMath::Abs(z-7.3*i)<0.60) {
2040 d+=dd;
2041 if (TMath::Abs(y-0.00)>3.30) d+=dd;
2042 break;
2043 }
2044 if (TMath::Abs(z+7.3*i)<0.60) {
2045 d+=dd;
2046 if (TMath::Abs(y-0.00)>3.30) d+=dd;
2047 break;
2048 }
2049 }
2050 } else
2051 if (6<fR&&fR<8) { //SPD2
2052 Double_t dd=0.0063; x0=21.5;
2053 d=dd;
2054 if (TMath::Abs(y-3.08)>0.5) d+=dd;
afd25725 2055 if (TMath::Abs(y-3.03)<0.10) d+=0.014;
e43c066c 2056 } else
2057 if (3<fR&&fR<5) { //SPD1
2058 Double_t dd=0.0063; x0=21.5;
2059 d=dd;
2060 if (TMath::Abs(y+0.21)>0.6) d+=dd;
afd25725 2061 if (TMath::Abs(y+0.10)<0.10) d+=0.014;
e43c066c 2062 }
2063
2064 return d;
2065}
44347160 2066//------------------------------------------------------------------------
23197852 2067AliITStrackerMI::AliITSdetector::AliITSdetector(const AliITSdetector& det):
2068fR(det.fR),
1c97ce2f 2069fRmisal(det.fRmisal),
23197852 2070fPhi(det.fPhi),
2071fSinPhi(det.fSinPhi),
2072fCosPhi(det.fCosPhi),
2073fYmin(det.fYmin),
2074fYmax(det.fYmax),
2075fZmin(det.fZmin),
2076fZmax(det.fZmax),
2077fIsBad(det.fIsBad),
2078fNChips(det.fNChips),
2079fChipIsBad(det.fChipIsBad)
2080{
2081 //Copy constructor
2082}
2083//------------------------------------------------------------------------
2084void AliITStrackerMI::AliITSdetector::ReadBadDetectorAndChips(Int_t ilayer,Int_t idet,
a70ed6ad 2085 const AliITSDetTypeRec *detTypeRec)
23197852 2086{
2087 //--------------------------------------------------------------------
2088 // Read bad detectors and chips from calibration objects in AliITSDetTypeRec
2089 //--------------------------------------------------------------------
2090
2091 // In AliITSDetTypeRec, detector numbers go from 0 to 2197
2092 // while in the tracker they start from 0 for each layer
2093 for(Int_t il=0; il<ilayer; il++)
2094 idet += AliITSgeomTGeo::GetNLadders(il+1)*AliITSgeomTGeo::GetNDetectors(il+1);
2095
2096 Int_t detType;
2097 if (ilayer==0 || ilayer==1) { // ---------- SPD
2098 detType = 0;
2099 } else if (ilayer==2 || ilayer==3) { // ---------- SDD
2100 detType = 1;
2101 } else if (ilayer==4 || ilayer==5) { // ---------- SSD
2102 detType = 2;
2103 } else {
2104 printf("AliITStrackerMI::AliITSdetector::InitBadFromOCDB: Wrong layer number %d\n",ilayer);
2105 return;
2106 }
2107
2108 // Get calibration from AliITSDetTypeRec
2109 AliITSCalibration *calib = (AliITSCalibration*)detTypeRec->GetCalibrationModel(idet);
d1181f10 2110 calib->SetModuleIndex(idet);
23197852 2111 AliITSCalibration *calibSPDdead = 0;
2112 if(detType==0) calibSPDdead = (AliITSCalibration*)detTypeRec->GetSPDDeadModel(idet); // TEMPORARY
2113 if (calib->IsBad() ||
2114 (detType==0 && calibSPDdead->IsBad())) // TEMPORARY
2115 {
2116 SetBad();
359ac74d 2117 // printf("lay %d bad %d\n",ilayer,idet);
23197852 2118 }
2119
2120 // Get segmentation from AliITSDetTypeRec
2121 AliITSsegmentation *segm = (AliITSsegmentation*)detTypeRec->GetSegmentationModel(detType);
2122
2123 // Read info about bad chips
2124 fNChips = segm->GetMaximumChipIndex()+1;
2125 //printf("ilayer %d detType %d idet %d fNChips %d %d GetNumberOfChips %d\n",ilayer,detType,idet,fNChips,segm->GetMaximumChipIndex(),segm->GetNumberOfChips());
2126 if(fChipIsBad) { delete [] fChipIsBad; fChipIsBad=NULL; }
2127 fChipIsBad = new Bool_t[fNChips];
2128 for (Int_t iCh=0;iCh<fNChips;iCh++) {
2129 fChipIsBad[iCh] = calib->IsChipBad(iCh);
2130 if (detType==0 && calibSPDdead->IsChipBad(iCh)) fChipIsBad[iCh] = kTRUE; // TEMPORARY
4187a601 2131 //if(fChipIsBad[iCh]) {printf("lay %d det %d bad chip %d\n",ilayer,idet,iCh);}
23197852 2132 }
2133
2134 return;
2135}
2136//------------------------------------------------------------------------
e50912db 2137Double_t AliITStrackerMI::GetEffectiveThickness()
e43c066c 2138{
2139 //--------------------------------------------------------------------
afd25725 2140 // Returns the thickness between the current layer and the vertex (units X0)
e43c066c 2141 //--------------------------------------------------------------------
e43c066c 2142
e50912db 2143 if(fUseTGeo!=0) {
2144 if(fxOverX0Layer[0]<0) BuildMaterialLUT("Layers");
2145 if(fxOverX0Shield[0]<0) BuildMaterialLUT("Shields");
2146 if(fxOverX0Pipe<0) BuildMaterialLUT("Pipe");
2147 }
2148
afd25725 2149 // beam pipe
e50912db 2150 Double_t dPipe = (fUseTGeo==0 ? AliITSRecoParam::GetdPipe() : fxOverX0Pipe);
2151 Double_t d=dPipe*AliITSRecoParam::GetrPipe()*AliITSRecoParam::GetrPipe();
afd25725 2152
2153 // layers
2154 Double_t x0=0;
e43c066c 2155 Double_t xn=fgLayers[fI].GetR();
2156 for (Int_t i=0; i<fI; i++) {
2157 Double_t xi=fgLayers[i].GetR();
e50912db 2158 Double_t dLayer = (fUseTGeo==0 ? fgLayers[i].GetThickness(0,0,x0) : fxOverX0Layer[i]);
2159 d+=dLayer*xi*xi;
e43c066c 2160 }
2161
afd25725 2162 // shields
e43c066c 2163 if (fI>1) {
e50912db 2164 Double_t dshieldSPD = (fUseTGeo==0 ? AliITSRecoParam::Getdshield(0) : fxOverX0Shield[0]);
2165 d+=dshieldSPD*AliITSRecoParam::GetrInsideShield(0)*AliITSRecoParam::GetrInsideShield(0);
e43c066c 2166 }
e43c066c 2167 if (fI>3) {
e50912db 2168 Double_t dshieldSDD = (fUseTGeo==0 ? AliITSRecoParam::Getdshield(1) : fxOverX0Shield[1]);
2169 d+=dshieldSDD*AliITSRecoParam::GetrInsideShield(1)*AliITSRecoParam::GetrInsideShield(1);
e43c066c 2170 }
e43c066c 2171 return d/(xn*xn);
2172}
44347160 2173//------------------------------------------------------------------------
e43c066c 2174Int_t AliITStrackerMI::AliITSlayer::InRoad() const {
ae00569a 2175 //-------------------------------------------------------------------
e43c066c 2176 // This function returns number of clusters within the "window"
2177 //--------------------------------------------------------------------
2178 Int_t ncl=0;
2179 for (Int_t i=fI; i<fN; i++) {
00a7cc50 2180 const AliITSRecPoint *c=fClusters[i];
e43c066c 2181 if (c->GetZ() > fZmax) break;
2182 if (c->IsUsed()) continue;
2183 const AliITSdetector &det=GetDetector(c->GetDetectorIndex());
2184 Double_t y=fR*det.GetPhi() + c->GetY();
2185
2186 if (y>2.*fR*TMath::Pi()) y -= 2*fR*TMath::Pi();
2187 if (y>1.*fR*TMath::Pi() && fYmax<y) y -= 2*fR*TMath::Pi();
2188
2189 if (y<fYmin) continue;
2190 if (y>fYmax) continue;
2191 ncl++;
2192 }
2193 return ncl;
2194}
44347160 2195//------------------------------------------------------------------------
ae00569a 2196Bool_t AliITStrackerMI::RefitAt(Double_t xx,AliITStrackMI *track,
7167ae53 2197 const AliITStrackMI *clusters,Bool_t extra, Bool_t planeeff)
ae00569a 2198{
e43c066c 2199 //--------------------------------------------------------------------
ae00569a 2200 // This function refits the track "track" at the position "x" using
2201 // the clusters from "clusters"
ef7253ac 2202 // If "extra"==kTRUE,
ae00569a 2203 // the clusters from overlapped modules get attached to "track"
7167ae53 2204 // If "planeff"==kTRUE,
2205 // special approach for plane efficiency evaluation is applyed
e43c066c 2206 //--------------------------------------------------------------------
6518a6c5 2207
e50912db 2208 Int_t index[AliITSgeomTGeo::kNLayers];
e43c066c 2209 Int_t k;
e50912db 2210 for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) index[k]=-1;
ae00569a 2211 Int_t nc=clusters->GetNumberOfClusters();
e43c066c 2212 for (k=0; k<nc; k++) {
ae00569a 2213 Int_t idx=clusters->GetClusterIndex(k);
2214 Int_t ilayer=(idx&0xf0000000)>>28;
2215 index[ilayer]=idx;
e43c066c 2216 }
67c1e979 2217
7167ae53 2218 return RefitAt(xx,track,index,extra,planeeff); // call the method below
67c1e979 2219}
44347160 2220//------------------------------------------------------------------------
ae00569a 2221Bool_t AliITStrackerMI::RefitAt(Double_t xx,AliITStrackMI *track,
7167ae53 2222 const Int_t *clusters,Bool_t extra, Bool_t planeeff)
ae00569a 2223{
67c1e979 2224 //--------------------------------------------------------------------
ae00569a 2225 // This function refits the track "track" at the position "x" using
67c1e979 2226 // the clusters from array
ae00569a 2227 // If "extra"==kTRUE,
2228 // the clusters from overlapped modules get attached to "track"
7167ae53 2229 // If "planeff"==kTRUE,
2230 // special approach for plane efficiency evaluation is applyed
67c1e979 2231 //--------------------------------------------------------------------
e50912db 2232 Int_t index[AliITSgeomTGeo::kNLayers];
67c1e979 2233 Int_t k;
e50912db 2234 for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) index[k]=-1;
67c1e979 2235 //
e50912db 2236 for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) {
ae00569a 2237 index[k]=clusters[k];
67c1e979 2238 }
2239
afd25725 2240 // special for cosmics: check which the innermost layer crossed
2241 // by the track
2242 Int_t innermostlayer=5;
ae00569a 2243 Double_t drphi = TMath::Abs(track->GetD(0.,0.));
2244 for(innermostlayer=0; innermostlayer<AliITSgeomTGeo::GetNLayers(); innermostlayer++) {
2245 if(drphi < fgLayers[innermostlayer].GetR()) break;
2246 }
4fa7f7d1 2247 AliDebug(2,Form(" drphi %f innermost %d",drphi,innermostlayer));
afd25725 2248
ae00569a 2249 Int_t modstatus=1; // found
2250 Float_t xloc,zloc;
67c1e979 2251 Int_t from, to, step;
ae00569a 2252 if (xx > track->GetX()) {
e50912db 2253 from=innermostlayer; to=AliITSgeomTGeo::GetNLayers();
67c1e979 2254 step=+1;
2255 } else {
e50912db 2256 from=AliITSgeomTGeo::GetNLayers()-1; to=innermostlayer-1;
67c1e979 2257 step=-1;
2258 }
ae00569a 2259 TString dir = (step>0 ? "outward" : "inward");
67c1e979 2260
ae00569a 2261 for (Int_t ilayer = from; ilayer != to; ilayer += step) {
6518a6c5 2262 AliITSlayer &layer=fgLayers[ilayer];
67c1e979 2263 Double_t r=layer.GetR();
4fa7f7d1 2264
afd25725 2265 if (step<0 && xx>r) break;
2266
2267 // material between SSD and SDD, SDD and SPD
6518a6c5 2268 Double_t hI=ilayer-0.5*step;
e50912db 2269 if (TMath::Abs(hI-3.5)<0.01) // SDDouter
ae00569a 2270 if(!CorrectForShieldMaterial(track,"SDD",dir)) return kFALSE;
e50912db 2271 if (TMath::Abs(hI-1.5)<0.01) // SPDouter
ae00569a 2272 if(!CorrectForShieldMaterial(track,"SPD",dir)) return kFALSE;
67c1e979 2273
ae00569a 2274
afd25725 2275 Double_t oldGlobXYZ[3];
d1181f10 2276 if (!track->GetXYZ(oldGlobXYZ)) return kFALSE;
afd25725 2277
67178f34 2278 // continue if we are already beyond this layer
2279 Double_t oldGlobR = TMath::Sqrt(oldGlobXYZ[0]*oldGlobXYZ[0]+oldGlobXYZ[1]*oldGlobXYZ[1]);
2280 if(step>0 && oldGlobR > r) continue; // going outward
2281 if(step<0 && oldGlobR < r) continue; // going inward
2282
8602c008 2283 Double_t phi,z;
ae00569a 2284 if (!track->GetPhiZat(r,phi,z)) return kFALSE;
67c1e979 2285
67c1e979 2286 Int_t idet=layer.FindDetectorIndex(phi,z);
6518a6c5 2287
2288 // check if we allow a prolongation without point for large-eta tracks
ae00569a 2289 Int_t skip = CheckSkipLayer(track,ilayer,idet);
6518a6c5 2290 if (skip==2) {
ae00569a 2291 modstatus = 4; // out in z
d1181f10 2292 if(LocalModuleCoord(ilayer,idet,track,xloc,zloc)) { // local module coords
2293 track->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
2294 }
7131593b 2295 // cross layer
2296 // apply correction for material of the current layer
2297 // add time if going outward
2298 CorrectForLayerMaterial(track,ilayer,oldGlobXYZ,dir);
6518a6c5 2299 continue;
2300 }
2301
e50912db 2302 if (idet<0) return kFALSE;
ae00569a 2303
4fa7f7d1 2304
67c1e979 2305 const AliITSdetector &det=layer.GetDetector(idet);
545af9ef 2306 // only for ITS-SA tracks refit
2307 if (ilayer>1 && fTrackingPhase.Contains("RefitInward") && !(track->GetStatus()&AliESDtrack::kTPCin)) track->SetCheckInvariant(kFALSE);
2308 //
1c97ce2f 2309 if (!track->Propagate(det.GetPhi(),det.GetR())) return kFALSE;
23197852 2310
ae00569a 2311 track->SetDetectorIndex(idet);
d1181f10 2312 if(!LocalModuleCoord(ilayer,idet,track,xloc,zloc)) return kFALSE; // local module coords
67c1e979 2313
23197852 2314 Double_t dz,zmin,zmax,dy,ymin,ymax;
ae00569a 2315
2316 const AliITSRecPoint *clAcc=0;
44347160 2317 Double_t maxchi2=1000.*AliITSReconstructor::GetRecoParam()->GetMaxChi2();
67c1e979 2318
6518a6c5 2319 Int_t idx=index[ilayer];
ae00569a 2320 if (idx>=0) { // cluster in this layer
2321 modstatus = 6; // no refit
2322 const AliITSRecPoint *cl=(AliITSRecPoint *)GetCluster(idx);
2323 if (cl) {
2324 if (idet != cl->GetDetectorIndex()) {
2325 idet=cl->GetDetectorIndex();
a5d0fae6 2326 const AliITSdetector &detc=layer.GetDetector(idet);
2327 if (!track->Propagate(detc.GetPhi(),detc.GetR())) return kFALSE;
ae00569a 2328 track->SetDetectorIndex(idet);
d1181f10 2329 if(!LocalModuleCoord(ilayer,idet,track,xloc,zloc)) return kFALSE; // local module coords
ae00569a 2330 }
ae00569a 2331 Int_t cllayer = (idx & 0xf0000000) >> 28;;
2332 Double_t chi2=GetPredictedChi2MI(track,cl,cllayer);
2333 if (chi2<maxchi2) {
2334 clAcc=cl;
2335 maxchi2=chi2;
2336 modstatus = 1; // found
2337 } else {
7167ae53 2338 return kFALSE; //
ae00569a 2339 }
2340 }
2341 } else { // no cluster in this layer
2342 if (skip==1) {
2343 modstatus = 3; // skipped
0ed58a47 2344 // Plane Eff determination:
2345 if (planeeff && ilayer==AliITSReconstructor::GetRecoParam()->GetIPlanePlaneEff()) {
2346 if (IsOKForPlaneEff(track,clusters,ilayer)) // only adequate track for plane eff. evaluation
2347 UseTrackForPlaneEff(track,ilayer);
7167ae53 2348 }
ae00569a 2349 } else {
2350 modstatus = 5; // no cls in road
2351 // check dead
1c97ce2f 2352 if (!ComputeRoad(track,ilayer,idet,zmin,zmax,ymin,ymax)) return kFALSE;
2353 dz = 0.5*(zmax-zmin);
2354 dy = 0.5*(ymax-ymin);
2355 Int_t dead = CheckDeadZone(track,ilayer,idet,dz,dy,kTRUE);
ae00569a 2356 if (dead==1) modstatus = 7; // holes in z in SPD
f8720bda 2357 if (dead==2 || dead==3 || dead==4) modstatus = 2; // dead from OCDB
ae00569a 2358 }
e43c066c 2359 }
ae00569a 2360
2361 if (clAcc) {
2362 if (!UpdateMI(track,clAcc,maxchi2,idx)) return kFALSE;
09cf9d66 2363 track->SetSampledEdx(clAcc->GetQ(),ilayer-2);
e43c066c 2364 }
ae00569a 2365 track->SetModuleIndexInfo(ilayer,idet,modstatus,xloc,zloc);
2366
2367
2368 if (extra) { // search for extra clusters in overlapped modules
2369 AliITStrackV2 tmp(*track);
1c97ce2f 2370 if (!ComputeRoad(track,ilayer,idet,zmin,zmax,ymin,ymax)) return kFALSE;
2371 layer.SelectClusters(zmin,zmax,ymin,ymax);
ae00569a 2372
2373 const AliITSRecPoint *clExtra=0; Int_t ci=-1,cci=-1;
2374 Int_t idetExtra=-1;
a5d0fae6 2375 maxchi2=1000.*AliITSReconstructor::GetRecoParam()->GetMaxChi2();
2376 Double_t tolerance=0.1;
ae00569a 2377 while ((clExtra=layer.GetNextCluster(ci))!=0) {
2378 // only clusters in another module! (overlaps)
2379 idetExtra = clExtra->GetDetectorIndex();
2380 if (idet == idetExtra) continue;
2381
a5d0fae6 2382 const AliITSdetector &detx=layer.GetDetector(idetExtra);
ae00569a 2383
1c97ce2f 2384 if (!tmp.Propagate(detx.GetPhi(),detx.GetR()+clExtra->GetX())) continue;
ae00569a 2385 if (TMath::Abs(tmp.GetZ() - clExtra->GetZ()) > tolerance) continue;
2386 if (TMath::Abs(tmp.GetY() - clExtra->GetY()) > tolerance) continue;
1c97ce2f 2387 if (!tmp.Propagate(detx.GetPhi(),detx.GetR())) continue;
ae00569a 2388
2389 Double_t chi2=tmp.GetPredictedChi2(clExtra);
2390 if (chi2<maxchi2) { maxchi2=chi2; cci=ci; }
2391 }
2392 if (cci>=0) {
2393 track->SetExtraCluster(ilayer,(ilayer<<28)+cci);
2394 track->SetExtraModule(ilayer,idetExtra);
2395 }
2396 } // end search for extra clusters in overlapped modules
1c97ce2f 2397
afd25725 2398 // Correct for material of the current layer
7131593b 2399 // cross material
2400 // add time if going outward
ae00569a 2401 if(!CorrectForLayerMaterial(track,ilayer,oldGlobXYZ,dir)) return kFALSE;
545af9ef 2402 track->SetCheckInvariant(kTRUE);
ae00569a 2403 } // end loop on layers
2404
db355ee7 2405 if (!track->PropagateTo(xx,0.,0.)) return kFALSE;
e43c066c 2406
e43c066c 2407 return kTRUE;
2408}
44347160 2409//------------------------------------------------------------------------
15dd636f 2410Double_t AliITStrackerMI::GetNormalizedChi2(AliITStrackMI * track, Int_t mode)
e43c066c 2411{
2412 //
2413 // calculate normalized chi2
2414 // return NormalizedChi2(track,0);
2415 Float_t chi2 = 0;
2416 Float_t sum=0;
2417 Float_t *erry = GetErrY(fCurrentEsdTrack), *errz = GetErrZ(fCurrentEsdTrack);
2418 // track->fdEdxMismatch=0;
2419 Float_t dedxmismatch =0;
2420 Float_t *ny = GetNy(fCurrentEsdTrack), *nz = GetNz(fCurrentEsdTrack);
2421 if (mode<100){
2422 for (Int_t i = 0;i<6;i++){
9fd412a8 2423 if (track->GetClIndex(i)>=0){
e43c066c 2424 Float_t cerry, cerrz;
2425 if (ny[i]>0) {cerry = erry[i]; cerrz=errz[i];}
2426 else
b9671574 2427 { cerry= track->GetSigmaY(i); cerrz = track->GetSigmaZ(i);}
e43c066c 2428 cerry*=cerry;
2429 cerrz*=cerrz;
b9671574 2430 Float_t cchi2 = (track->GetDy(i)*track->GetDy(i)/cerry)+(track->GetDz(i)*track->GetDz(i)/cerrz);
572f41f9 2431 if (i>1 && AliITSReconstructor::GetRecoParam()->GetUseAmplitudeInfo(i)) {
b9671574 2432 Float_t ratio = track->GetNormQ(i)/track->GetExpQ();
e43c066c 2433 if (ratio<0.5) {
2434 cchi2+=(0.5-ratio)*10.;
2435 //track->fdEdxMismatch+=(0.5-ratio)*10.;
2436 dedxmismatch+=(0.5-ratio)*10.;
2437 }
2438 }
2439 if (i<2 ||i>3){
b9671574 2440 AliITSRecPoint * cl = (AliITSRecPoint*)GetCluster( track->GetClIndex(i));
e43c066c 2441 Double_t delta = cl->GetNy()+cl->GetNz()-ny[i]-nz[i];
2442 if (delta>1) chi2 +=0.5*TMath::Min(delta/2,2.);
2443 if (i<2) chi2+=2*cl->GetDeltaProbability();
2444 }
2445 chi2+=cchi2;
2446 sum++;
2447 }
2448 }
b9671574 2449 if (TMath::Abs(track->GetdEdxMismatch()-dedxmismatch)>0.0001){
2450 track->SetdEdxMismatch(dedxmismatch);
e43c066c 2451 }
2452 }
2453 else{
2454 for (Int_t i = 0;i<4;i++){
9fd412a8 2455 if (track->GetClIndex(i)>=0){
e43c066c 2456 Float_t cerry, cerrz;
2457 if (ny[i]>0) {cerry = erry[i]; cerrz=errz[i];}
b9671574 2458 else { cerry= track->GetSigmaY(i); cerrz = track->GetSigmaZ(i);}
e43c066c 2459 cerry*=cerry;
2460 cerrz*=cerrz;
b9671574 2461 chi2+= (track->GetDy(i)*track->GetDy(i)/cerry);
2462 chi2+= (track->GetDz(i)*track->GetDz(i)/cerrz);
e43c066c 2463 sum++;
2464 }
2465 }
2466 for (Int_t i = 4;i<6;i++){
9fd412a8 2467 if (track->GetClIndex(i)>=0){
e43c066c 2468 Float_t cerry, cerrz;
2469 if (ny[i]>0) {cerry = erry[i]; cerrz=errz[i];}
b9671574 2470 else { cerry= track->GetSigmaY(i); cerrz = track->GetSigmaZ(i);}
e43c066c 2471 cerry*=cerry;
2472 cerrz*=cerrz;
2473 Float_t cerryb, cerrzb;
2474 if (ny[i+6]>0) {cerryb = erry[i+6]; cerrzb=errz[i+6];}
b9671574 2475 else { cerryb= track->GetSigmaY(i+6); cerrzb = track->GetSigmaZ(i+6);}
e43c066c 2476 cerryb*=cerryb;
2477 cerrzb*=cerrzb;
b9671574 2478 chi2+= TMath::Min((track->GetDy(i+6)*track->GetDy(i+6)/cerryb),track->GetDy(i)*track->GetDy(i)/cerry);
2479 chi2+= TMath::Min((track->GetDz(i+6)*track->GetDz(i+6)/cerrzb),track->GetDz(i)*track->GetDz(i)/cerrz);
e43c066c 2480 sum++;
2481 }
2482 }
2483 }
b9671574 2484 if (track->GetESDtrack()->GetTPCsignal()>85){
2485 Float_t ratio = track->GetdEdx()/track->GetESDtrack()->GetTPCsignal();
e43c066c 2486 if (ratio<0.5) {
2487 chi2+=(0.5-ratio)*5.;
2488 }
2489 if (ratio>2){
2490 chi2+=(ratio-2.0)*3;
2491 }
2492 }
2493 //
b9671574 2494 Double_t match = TMath::Sqrt(track->GetChi22());
2495 if (track->GetConstrain()) match/=track->GetNumberOfClusters();
2755f080 2496 if (!track->GetConstrain()) {
2497 if (track->GetNumberOfClusters()>2) {
2498 match/=track->GetNumberOfClusters()-2.;
2499 } else {
2500 match=0;
2501 }
2502 }
e43c066c 2503 if (match<0) match=0;
f8720bda 2504
2505 // penalty factor for missing points (NDeadZone>0), but no penalty
2506 // for layer with deadZoneProb close to 1 (either we wanted to skip layer
2507 // or there is a dead from OCDB)
2508 Float_t deadzonefactor = 0.;
2509 if (track->GetNDeadZone()>0.) {
2510 Float_t sumDeadZoneProbability=0;
2511 for(Int_t ilay=0;ilay<6;ilay++) sumDeadZoneProbability+=track->GetDeadZoneProbability(ilay);
2512 Float_t nDeadZoneWithProbNot1=(Float_t)(track->GetNDeadZone())-sumDeadZoneProbability;
2513 if(nDeadZoneWithProbNot1>0.) {
2514 Float_t deadZoneProbability = sumDeadZoneProbability - (Float_t)((Int_t)sumDeadZoneProbability);
2515 deadZoneProbability /= nDeadZoneWithProbNot1;
2516 deadzonefactor = 3.*(1.1-deadZoneProbability);
2517 }
2518 }
2519
b9671574 2520 Double_t normchi2 = 2*track->GetNSkipped()+match+deadzonefactor+(1+(2*track->GetNSkipped()+deadzonefactor)/track->GetNumberOfClusters())*
2521 (chi2)/TMath::Max(double(sum-track->GetNSkipped()),
2522 1./(1.+track->GetNSkipped()));
e43c066c 2523
2524 return normchi2;
2525}
44347160 2526//------------------------------------------------------------------------
a70ed6ad 2527Double_t AliITStrackerMI::GetMatchingChi2(const AliITStrackMI * track1,const AliITStrackMI * track2)
e43c066c 2528{
2529 //
2530 // return matching chi2 between two tracks
d1181f10 2531 Double_t largeChi2=1000.;
2532
15dd636f 2533 AliITStrackMI track3(*track2);
d1181f10 2534 if (!track3.Propagate(track1->GetAlpha(),track1->GetX())) return largeChi2;
e43c066c 2535 TMatrixD vec(5,1);
6c94f330 2536 vec(0,0)=track1->GetY() - track3.GetY();
2537 vec(1,0)=track1->GetZ() - track3.GetZ();
2538 vec(2,0)=track1->GetSnp() - track3.GetSnp();
2539 vec(3,0)=track1->GetTgl() - track3.GetTgl();
6c23ffed 2540 vec(4,0)=track1->GetSigned1Pt() - track3.GetSigned1Pt();
e43c066c 2541 //
2542 TMatrixD cov(5,5);
6c94f330 2543 cov(0,0) = track1->GetSigmaY2()+track3.GetSigmaY2();
2544 cov(1,1) = track1->GetSigmaZ2()+track3.GetSigmaZ2();
2545 cov(2,2) = track1->GetSigmaSnp2()+track3.GetSigmaSnp2();
2546 cov(3,3) = track1->GetSigmaTgl2()+track3.GetSigmaTgl2();
2547 cov(4,4) = track1->GetSigma1Pt2()+track3.GetSigma1Pt2();
e43c066c 2548
6c94f330 2549 cov(0,1)=cov(1,0) = track1->GetSigmaZY()+track3.GetSigmaZY();
2550 cov(0,2)=cov(2,0) = track1->GetSigmaSnpY()+track3.GetSigmaSnpY();
2551 cov(0,3)=cov(3,0) = track1->GetSigmaTglY()+track3.GetSigmaTglY();
2552 cov(0,4)=cov(4,0) = track1->GetSigma1PtY()+track3.GetSigma1PtY();
e43c066c 2553 //
6c94f330 2554 cov(1,2)=cov(2,1) = track1->GetSigmaSnpZ()+track3.GetSigmaSnpZ();
2555 cov(1,3)=cov(3,1) = track1->GetSigmaTglZ()+track3.GetSigmaTglZ();
2556 cov(1,4)=cov(4,1) = track1->GetSigma1PtZ()+track3.GetSigma1PtZ();
e43c066c 2557 //
6c94f330 2558 cov(2,3)=cov(3,2) = track1->GetSigmaTglSnp()+track3.GetSigmaTglSnp();
2559 cov(2,4)=cov(4,2) = track1->GetSigma1PtSnp()+track3.GetSigma1PtSnp();
e43c066c 2560 //
6c94f330 2561 cov(3,4)=cov(4,3) = track1->GetSigma1PtTgl()+track3.GetSigma1PtTgl();
e43c066c 2562
2563 cov.Invert();
2564 TMatrixD vec2(cov,TMatrixD::kMult,vec);
2565 TMatrixD chi2(vec2,TMatrixD::kTransposeMult,vec);
2566 return chi2(0,0);
2567}
44347160 2568//------------------------------------------------------------------------
a70ed6ad 2569Double_t AliITStrackerMI::GetSPDDeadZoneProbability(Double_t zpos, Double_t zerr) const
e43c066c 2570{
2571 //
afd25725 2572 // return probability that given point (characterized by z position and error)
2573 // is in SPD dead zone
e43c066c 2574 //
afd25725 2575 Double_t probability = 0.;
e43c066c 2576 Double_t absz = TMath::Abs(zpos);
afd25725 2577 Double_t nearestz = (absz<2.) ? 0.5*(fSPDdetzcentre[1]+fSPDdetzcentre[2]) :
2578 0.5*(fSPDdetzcentre[2]+fSPDdetzcentre[3]);
2579 if (TMath::Abs(absz-nearestz)>0.25+3.*zerr) return probability;
2580 Double_t zmin, zmax;
2581 if (zpos<-6.) { // dead zone at z = -7
e50912db 2582 zmin = fSPDdetzcentre[0] + 0.5*AliITSRecoParam::GetSPDdetzlength();
2583 zmax = fSPDdetzcentre[1] - 0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 2584 } else if (zpos>6.) { // dead zone at z = +7
e50912db 2585 zmin = fSPDdetzcentre[2] + 0.5*AliITSRecoParam::GetSPDdetzlength();
2586 zmax = fSPDdetzcentre[3] - 0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 2587 } else if (absz<2.) { // dead zone at z = 0
e50912db 2588 zmin = fSPDdetzcentre[1] + 0.5*AliITSRecoParam::GetSPDdetzlength();
2589 zmax = fSPDdetzcentre[2] - 0.5*AliITSRecoParam::GetSPDdetzlength();
afd25725 2590 } else {
2591 zmin = 0.;
2592 zmax = 0.;
e43c066c 2593 }
afd25725 2594 // probability that the true z is in the range [zmin,zmax] (i.e. inside
2595 // dead zone)
2596 probability = 0.5*( TMath::Erf((zpos-zmin)/zerr/TMath::Sqrt(2.)) -
2597 TMath::Erf((zpos-zmax)/zerr/TMath::Sqrt(2.)) );
e43c066c 2598 return probability;
2599}
44347160 2600//------------------------------------------------------------------------
a70ed6ad 2601Double_t AliITStrackerMI::GetTruncatedChi2(const AliITStrackMI * track, Float_t fac)
e43c066c 2602{
2603 //
2604 // calculate normalized chi2
2605 Float_t chi2[6];
2606 Float_t *erry = GetErrY(fCurrentEsdTrack), *errz = GetErrZ(fCurrentEsdTrack);
2607 Float_t ncl = 0;
2608 for (Int_t i = 0;i<6;i++){
b9671574 2609 if (TMath::Abs(track->GetDy(i))>0){
2610 chi2[i]= (track->GetDy(i)/erry[i])*(track->GetDy(i)/erry[i]);
2611 chi2[i]+= (track->GetDz(i)/errz[i])*(track->GetDz(i)/errz[i]);
e43c066c 2612 ncl++;
2613 }
2614 else{chi2[i]=10000;}
2615 }
2616 Int_t index[6];
2617 TMath::Sort(6,chi2,index,kFALSE);
2618 Float_t max = float(ncl)*fac-1.;
2619 Float_t sumchi=0, sumweight=0;
2620 for (Int_t i=0;i<max+1;i++){
2621 Float_t weight = (i<max)?1.:(max+1.-i);
2622 sumchi+=weight*chi2[index[i]];
2623 sumweight+=weight;
2624 }
2625 Double_t normchi2 = sumchi/sumweight;
2626 return normchi2;
2627}
44347160 2628//------------------------------------------------------------------------
a70ed6ad 2629Double_t AliITStrackerMI::GetInterpolatedChi2(const AliITStrackMI * forwardtrack,const AliITStrackMI * backtrack)
e43c066c 2630{
2631 //
2632 // calculate normalized chi2
2633 // if (forwardtrack->fNUsed>0.3*float(forwardtrack->GetNumberOfClusters())) return 10000;
2634 Int_t npoints = 0;
2635 Double_t res =0;
2636 for (Int_t i=0;i<6;i++){
b9671574 2637 if ( (backtrack->GetSigmaY(i)<0.000000001) || (forwardtrack->GetSigmaY(i)<0.000000001)) continue;
2638 Double_t sy1 = forwardtrack->GetSigmaY(i);
2639 Double_t sz1 = forwardtrack->GetSigmaZ(i);
2640 Double_t sy2 = backtrack->GetSigmaY(i);
2641 Double_t sz2 = backtrack->GetSigmaZ(i);
e43c066c 2642 if (i<2){ sy2=1000.;sz2=1000;}
2643 //
b9671574 2644 Double_t dy0 = (forwardtrack->GetDy(i)/(sy1*sy1) +backtrack->GetDy(i)/(sy2*sy2))/(1./(sy1*sy1)+1./(sy2*sy2));
2645 Double_t dz0 = (forwardtrack->GetDz(i)/(sz1*sz1) +backtrack->GetDz(i)/(sz2*sz2))/(1./(sz1*sz1)+1./(sz2*sz2));
e43c066c 2646 //
2647 Double_t nz0 = dz0*TMath::Sqrt((1./(sz1*sz1)+1./(sz2*sz2)));
2648 Double_t ny0 = dy0*TMath::Sqrt((1./(sy1*sy1)+1./(sy2*sy2)));
2649 //
2650 res+= nz0*nz0+ny0*ny0;
2651 npoints++;
2652 }
2653 if (npoints>1) return
6c23ffed 2654 TMath::Max(0.3*forwardtrack->OneOverPt()-0.5,0.)+
e43c066c 2655 //2*forwardtrack->fNUsed+
b9671574 2656 res/TMath::Max(double(npoints-forwardtrack->GetNSkipped()),
2657 1./(1.+forwardtrack->GetNSkipped()));
e43c066c 2658 return 1000;
2659}
44347160 2660//------------------------------------------------------------------------
e43c066c 2661Float_t *AliITStrackerMI::GetWeight(Int_t index) {
2662 //--------------------------------------------------------------------
2663 // Return pointer to a given cluster
2664 //--------------------------------------------------------------------
2665 Int_t l=(index & 0xf0000000) >> 28;
2666 Int_t c=(index & 0x0fffffff) >> 00;
2667 return fgLayers[l].GetWeight(c);
2668}
44347160 2669//------------------------------------------------------------------------
a70ed6ad 2670void AliITStrackerMI::RegisterClusterTracks(const AliITStrackMI* track,Int_t id)
e43c066c 2671{
2672 //---------------------------------------------
2673 // register track to the list
628e7bb0 2674 //
b9671574 2675 if (track->GetESDtrack()->GetKinkIndex(0)!=0) return; //don't register kink tracks
628e7bb0 2676 //
2677 //
e43c066c 2678 for (Int_t icluster=0;icluster<track->GetNumberOfClusters();icluster++){
2679 Int_t index = track->GetClusterIndex(icluster);
2680 Int_t l=(index & 0xf0000000) >> 28;
2681 Int_t c=(index & 0x0fffffff) >> 00;
b9671574 2682 if (c>fgLayers[l].GetNumberOfClusters()) continue;
e43c066c 2683 for (Int_t itrack=0;itrack<4;itrack++){
b9671574 2684 if (fgLayers[l].GetClusterTracks(itrack,c)<0){
2685 fgLayers[l].SetClusterTracks(itrack,c,id);
e43c066c 2686 break;
2687 }
2688 }
2689 }
2690}
44347160 2691//------------------------------------------------------------------------
a70ed6ad 2692void AliITStrackerMI::UnRegisterClusterTracks(const AliITStrackMI* track, Int_t id)
e43c066c 2693{
2694 //---------------------------------------------
2695 // unregister track from the list
2696 for (Int_t icluster=0;icluster<track->GetNumberOfClusters();icluster++){
2697 Int_t index = track->GetClusterIndex(icluster);
2698 Int_t l=(index & 0xf0000000) >> 28;
2699 Int_t c=(index & 0x0fffffff) >> 00;
b9671574 2700 if (c>fgLayers[l].GetNumberOfClusters()) continue;
e43c066c 2701 for (Int_t itrack=0;itrack<4;itrack++){
b9671574 2702 if (fgLayers[l].GetClusterTracks(itrack,c)==id){
2703 fgLayers[l].SetClusterTracks(itrack,c,-1);
e43c066c 2704 }
2705 }
2706 }
2707}
44347160 2708//------------------------------------------------------------------------
00a7cc50 2709Float_t AliITStrackerMI::GetNumberOfSharedClusters(AliITStrackMI* track,Int_t id, Int_t list[6], AliITSRecPoint *clist[6])
e43c066c 2710{
2711 //-------------------------------------------------------------
2712 //get number of shared clusters
2713 //-------------------------------------------------------------
2714 Float_t shared=0;
2715 for (Int_t i=0;i<6;i++) { list[i]=-1, clist[i]=0;}
2716 // mean number of clusters
2717 Float_t *ny = GetNy(id), *nz = GetNz(id);
2718
2719
2720 for (Int_t icluster=0;icluster<track->GetNumberOfClusters();icluster++){
2721 Int_t index = track->GetClusterIndex(icluster);
2722 Int_t l=(index & 0xf0000000) >> 28;
2723 Int_t c=(index & 0x0fffffff) >> 00;
b9671574 2724 if (c>fgLayers[l].GetNumberOfClusters()) continue;
e43c066c 2725 if (ny[l]==0){
2726 printf("problem\n");
2727 }
00a7cc50 2728 AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(index);
e43c066c 2729 Float_t weight=1;
2730 //
2731 Float_t deltan = 0;
2732 if (l>3&&cl->GetNy()+cl->GetNz()>6) continue;
572f41f9 2733 if (l>2&&AliITSReconstructor::GetRecoParam()->GetUseAmplitudeInfo(l))
2734 if (track->GetNormQ(l)/track->GetExpQ()>3.5) continue;
e43c066c 2735 if (l<2 || l>3){
2736 deltan = (cl->GetNy()+cl->GetNz()-ny[l]-nz[l]);
2737 }
2738 else{
2739 deltan = (cl->GetNz()-nz[l]);
2740 }
2741 if (deltan>2.0) continue; // extended - highly probable shared cluster
2742 weight = 2./TMath::Max(3.+deltan,2.);
2743 //
2744 for (Int_t itrack=0;itrack<4;itrack++){
b9671574 2745 if (fgLayers[l].GetClusterTracks(itrack,c)>=0 && fgLayers[l].GetClusterTracks(itrack,c)!=id){
e43c066c 2746 list[l]=index;
00a7cc50 2747 clist[l] = (AliITSRecPoint*)GetCluster(index);
e43c066c 2748 shared+=weight;
2749 break;
2750 }
2751 }
2752 }
b9671574 2753 track->SetNUsed(shared);
e43c066c 2754 return shared;
2755}
44347160 2756//------------------------------------------------------------------------
a70ed6ad 2757Int_t AliITStrackerMI::GetOverlapTrack(const AliITStrackMI *track, Int_t trackID, Int_t &shared, Int_t clusterlist[6],Int_t overlist[6])
e43c066c 2758{
2759 //
2760 // find first shared track
2761 //
2762 // mean number of clusters
2763 Float_t *ny = GetNy(trackID), *nz = GetNz(trackID);
2764 //
2765 for (Int_t i=0;i<6;i++) overlist[i]=-1;
2766 Int_t sharedtrack=100000;
2767 Int_t tracks[24],trackindex=0;
2768 for (Int_t i=0;i<24;i++) {tracks[i]=-1;}
2769 //
2770 for (Int_t icluster=0;icluster<6;icluster++){
2771 if (clusterlist[icluster]<0) continue;
2772 Int_t index = clusterlist[icluster];
2773 Int_t l=(index & 0xf0000000) >> 28;
2774 Int_t c=(index & 0x0fffffff) >> 00;
2775 if (ny[l]==0){
2776 printf("problem\n");
2777 }
b9671574 2778 if (c>fgLayers[l].GetNumberOfClusters()) continue;
e43c066c 2779 //if (l>3) continue;
00a7cc50 2780 AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(index);
e43c066c 2781 //
2782 Float_t deltan = 0;
2783 if (l>3&&cl->GetNy()+cl->GetNz()>6) continue;
572f41f9 2784 if (l>2&&AliITSReconstructor::GetRecoParam()->GetUseAmplitudeInfo(l))
2785 if (track->GetNormQ(l)/track->GetExpQ()>3.5) continue;
e43c066c 2786 if (l<2 || l>3){
2787 deltan = (cl->GetNy()+cl->GetNz()-ny[l]-nz[l]);
2788 }
2789 else{
2790 deltan = (cl->GetNz()-nz[l]);
2791 }
2792 if (deltan>2.0) continue; // extended - highly probable shared cluster
2793 //
2794 for (Int_t itrack=3;itrack>=0;itrack--){
b9671574 2795 if (fgLayers[l].GetClusterTracks(itrack,c)<0) continue;
2796 if (fgLayers[l].GetClusterTracks(itrack,c)!=trackID){
2797 tracks[trackindex] = fgLayers[l].GetClusterTracks(itrack,c);
e43c066c 2798 trackindex++;
2799 }
2800 }
2801 }
2802 if (trackindex==0) return -1;
2803 if (trackindex==1){
2804 sharedtrack = tracks[0];
2805 }else{
2806 if (trackindex==2) sharedtrack =TMath::Min(tracks[0],tracks[1]);
2807 else{
2808 //
a5d0fae6 2809 Int_t tracks2[24], cluster[24];
2810 for (Int_t i=0;i<trackindex;i++){ tracks2[i]=-1; cluster[i]=0;}
e43c066c 2811 Int_t index =0;
2812 //
2813 for (Int_t i=0;i<trackindex;i++){
2814 if (tracks[i]<0) continue;
a5d0fae6 2815 tracks2[index] = tracks[i];
e43c066c 2816 cluster[index]++;
2817 for (Int_t j=i+1;j<trackindex;j++){
2818 if (tracks[j]<0) continue;
2819 if (tracks[j]==tracks[i]){
2820 cluster[index]++;
2821 tracks[j]=-1;
2822 }
2823 }
2824 index++;
2825 }
2826 Int_t max=0;
2827 for (Int_t i=0;i<index;i++){
2828 if (cluster[index]>max) {
a5d0fae6 2829 sharedtrack=tracks2[index];
e43c066c 2830 max=cluster[index];
2831 }
2832 }
2833 }
2834 }
2835
2836 if (sharedtrack>=100000) return -1;
2837 //
2838 // make list of overlaps
2839 shared =0;
2840 for (Int_t icluster=0;icluster<6;icluster++){
2841 if (clusterlist[icluster]<0) continue;
2842 Int_t index = clusterlist[icluster];
2843 Int_t l=(index & 0xf0000000) >> 28;
2844 Int_t c=(index & 0x0fffffff) >> 00;
b9671574 2845 if (c>fgLayers[l].GetNumberOfClusters()) continue;
00a7cc50 2846 AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(index);
e43c066c 2847 if (l==0 || l==1){
2848 if (cl->GetNy()>2) continue;
2849 if (cl->GetNz()>2) continue;
2850 }
2851 if (l==4 || l==5){
2852 if (cl->GetNy()>3) continue;
2853 if (cl->GetNz()>3) continue;
2854 }
2855 //
2856 for (Int_t itrack=3;itrack>=0;itrack--){
b9671574 2857 if (fgLayers[l].GetClusterTracks(itrack,c)<0) continue;
2858 if (fgLayers[l].GetClusterTracks(itrack,c)==sharedtrack){
e43c066c 2859 overlist[l]=index;
2860 shared++;
2861 }
2862 }
2863 }
2864 return sharedtrack;
2865}
44347160 2866//------------------------------------------------------------------------
15dd636f 2867AliITStrackMI * AliITStrackerMI::GetBest2Tracks(Int_t trackID1, Int_t trackID2, Float_t th0, Float_t th1){
e43c066c 2868 //
2869 // try to find track hypothesys without conflicts
2870 // with minimal chi2;
2871 TClonesArray *arr1 = (TClonesArray*)fTrackHypothesys.At(trackID1);
2872 Int_t entries1 = arr1->GetEntriesFast();
2873 TClonesArray *arr2 = (TClonesArray*)fTrackHypothesys.At(trackID2);
15dd636f 2874 if (!arr2) return (AliITStrackMI*) arr1->UncheckedAt(0);
e43c066c 2875 Int_t entries2 = arr2->GetEntriesFast();
15dd636f 2876 if (entries2<=0) return (AliITStrackMI*) arr1->UncheckedAt(0);
e43c066c 2877 //
15dd636f 2878 AliITStrackMI * track10=(AliITStrackMI*) arr1->UncheckedAt(0);
2879 AliITStrackMI * track20=(AliITStrackMI*) arr2->UncheckedAt(0);
6c23ffed 2880 if (track10->Pt()>0.5+track20->Pt()) return track10;
e43c066c 2881
2882 for (Int_t itrack=0;itrack<entries1;itrack++){
15dd636f 2883 AliITStrackMI * track=(AliITStrackMI*) arr1->UncheckedAt(itrack);
e43c066c 2884 UnRegisterClusterTracks(track,trackID1);
2885 }
2886 //
2887 for (Int_t itrack=0;itrack<entries2;itrack++){
15dd636f 2888 AliITStrackMI * track=(AliITStrackMI*) arr2->UncheckedAt(itrack);
e43c066c 2889 UnRegisterClusterTracks(track,trackID2);
2890 }
2891 Int_t index1=0;
2892 Int_t index2=0;
2893 Float_t maxconflicts=6;
2894 Double_t maxchi2 =1000.;
2895 //
2896 // get weight of hypothesys - using best hypothesy
2897 Double_t w1,w2;
2898
2899 Int_t list1[6],list2[6];
00a7cc50 2900 AliITSRecPoint *clist1[6], *clist2[6] ;
e43c066c 2901 RegisterClusterTracks(track10,trackID1);
2902 RegisterClusterTracks(track20,trackID2);
2903 Float_t conflict1 = GetNumberOfSharedClusters(track10,trackID1,list1,clist1);
2904 Float_t conflict2 = GetNumberOfSharedClusters(track20,trackID2,list2,clist2);
2905 UnRegisterClusterTracks(track10,trackID1);
2906 UnRegisterClusterTracks(track20,trackID2);
2907 //
2908 // normalized chi2
2909 Float_t chi21 =0,chi22=0,ncl1=0,ncl2=0;
2910 Float_t nerry[6],nerrz[6];
2911 Float_t *erry1=GetErrY(trackID1),*errz1 = GetErrZ(trackID1);
2912 Float_t *erry2=GetErrY(trackID2),*errz2 = GetErrZ(trackID2);
2913 for (Int_t i=0;i<6;i++){
2914 if ( (erry1[i]>0) && (erry2[i]>0)) {
2915 nerry[i] = TMath::Min(erry1[i],erry2[i]);
2916 nerrz[i] = TMath::Min(errz1[i],errz2[i]);
2917 }else{
2918 nerry[i] = TMath::Max(erry1[i],erry2[i]);
2919 nerrz[i] = TMath::Max(errz1[i],errz2[i]);
2920 }
b9671574 2921 if (TMath::Abs(track10->GetDy(i))>0.000000000000001){
2922 chi21 += track10->GetDy(i)*track10->GetDy(i)/(nerry[i]*nerry[i]);
2923 chi21 += track10->GetDz(i)*track10->GetDz(i)/(nerrz[i]*nerrz[i]);
e43c066c 2924 ncl1++;
2925 }
b9671574 2926 if (TMath::Abs(track20->GetDy(i))>0.000000000000001){
2927 chi22 += track20->GetDy(i)*track20->GetDy(i)/(nerry[i]*nerry[i]);
2928 chi22 += track20->GetDz(i)*track20->GetDz(i)/(nerrz[i]*nerrz[i]);
e43c066c 2929 ncl2++;
2930 }
2931 }
2932 chi21/=ncl1;
2933 chi22/=ncl2;
2934 //
2935 //
b9671574 2936 Float_t d1 = TMath::Sqrt(track10->GetD(0)*track10->GetD(0)+track10->GetD(1)*track10->GetD(1))+0.1;
2937 Float_t d2 = TMath::Sqrt(track20->GetD(0)*track20->GetD(0)+track20->GetD(1)*track20->GetD(1))+0.1;
e43c066c 2938 Float_t s1 = TMath::Sqrt(track10->GetSigmaY2()*track10->GetSigmaZ2());
2939 Float_t s2 = TMath::Sqrt(track20->GetSigmaY2()*track20->GetSigmaZ2());
2940 //
2941 w1 = (d2/(d1+d2)+ 2*s2/(s1+s2)+
2942 +s2/(s1+s2)*0.5*(chi22+2.)/(chi21+chi22+4.)
6c23ffed 2943 +1.*track10->Pt()/(track10->Pt()+track20->Pt())
e43c066c 2944 );
2945 w2 = (d1/(d1+d2)+ 2*s1/(s1+s2)+
2946 s1/(s1+s2)*0.5*(chi21+2.)/(chi21+chi22+4.)
6c23ffed 2947 +1.*track20->Pt()/(track10->Pt()+track20->Pt())
e43c066c 2948 );
2949
2950 Double_t sumw = w1+w2;
2951 w1/=sumw;
2952 w2/=sumw;
2953 if (w1<w2*0.5) {
2954 w1 = (d2+0.5)/(d1+d2+1.);
2955 w2 = (d1+0.5)/(d1+d2+1.);
2956 }
2957 // Float_t maxmax = w1*track10->fChi2MIP[0]+w2*track20->fChi2MIP[0]+w1*conflict1+w2*conflict2+1.;
2958 //Float_t maxconflicts0 = w1*conflict1+w2*conflict2;
2959 //
2960 // get pair of "best" hypothesys
2961 //
2962 Float_t * ny1 = GetNy(trackID1), * nz1 = GetNz(trackID1);
2963 Float_t * ny2 = GetNy(trackID2), * nz2 = GetNz(trackID2);
2964
2965 for (Int_t itrack1=0;itrack1<entries1;itrack1++){
15dd636f 2966 AliITStrackMI * track1=(AliITStrackMI*) arr1->UncheckedAt(itrack1);
e43c066c 2967 //if (track1->fFakeRatio>0) continue;
2968 RegisterClusterTracks(track1,trackID1);
2969 for (Int_t itrack2=0;itrack2<entries2;itrack2++){
15dd636f 2970 AliITStrackMI * track2=(AliITStrackMI*) arr2->UncheckedAt(itrack2);
e43c066c 2971
2972 // Float_t current = w1*track1->fChi2MIP[0]+w2*track2->fChi2MIP[0];
2973 //if (track2->fFakeRatio>0) continue;
2974 Float_t nskipped=0;
2975 RegisterClusterTracks(track2,trackID2);
e43c066c 2976 Float_t cconflict1 = GetNumberOfSharedClusters(track1,trackID1,list1,clist1);
2977 Float_t cconflict2 = GetNumberOfSharedClusters(track2,trackID2,list2,clist2);
2978 UnRegisterClusterTracks(track2,trackID2);
2979 //
b9671574 2980 if (track1->GetConstrain()) nskipped+=w1*track1->GetNSkipped();
2981 if (track2->GetConstrain()) nskipped+=w2*track2->GetNSkipped();
e43c066c 2982 if (nskipped>0.5) continue;
2983 //
2984 //if ( w1*conflict1+w2*conflict2>maxconflicts0) continue;
2985 if (conflict1+1<cconflict1) continue;
2986 if (conflict2+1<cconflict2) continue;
2987 Float_t conflict=0;
2988 Float_t sumchi2=0;
2989 Float_t sum=0;
2990 for (Int_t i=0;i<6;i++){
2991 //
2992 Float_t c1 =0.; // conflict coeficients
2993 Float_t c2 =0.;
2994 if (clist1[i]&&clist2[i]){
2995 Float_t deltan = 0;
2996 if (i<2 || i>3){
2997 deltan = (clist1[i]->GetNy()+clist1[i]->GetNz()-TMath::Max(ny1[i],ny2[i])-TMath::Max(nz1[i],nz2[i]));
2998 }
2999 else{
3000 deltan = (clist1[i]->GetNz()-TMath::Max(nz1[i],nz2[i]));
3001 }
3002 c1 = 2./TMath::Max(3.+deltan,2.);
3003 c2 = 2./TMath::Max(3.+deltan,2.);
3004 }
3005 else{
3006 if (clist1[i]){
3007 Float_t deltan = 0;
3008 if (i<2 || i>3){
3009 deltan = (clist1[i]->GetNy()+clist1[i]->GetNz()-ny1[i]-nz1[i]);
3010 }
3011 else{
3012 deltan = (clist1[i]->GetNz()-nz1[i]);
3013 }
3014 c1 = 2./TMath::Max(3.+deltan,2.);
3015 c2 = 0;
3016 }
3017
3018 if (clist2[i]){
3019 Float_t deltan = 0;
3020 if (i<2 || i>3){
3021 deltan = (clist2[i]->GetNy()+clist2[i]->GetNz()-ny2[i]-nz2[i]);
3022 }
3023 else{
3024 deltan = (clist2[i]->GetNz()-nz2[i]);
3025 }
3026 c2 = 2./TMath::Max(3.+deltan,2.);
3027 c1 = 0;
3028 }
3029 }
3030 //
a5d0fae6 3031 chi21=0;chi22=0;
b9671574 3032 if (TMath::Abs(track1->GetDy(i))>0.) {
3033 chi21 = (track1->GetDy(i)/track1->GetSigmaY(i))*(track1->GetDy(i)/track1->GetSigmaY(i))+
3034 (track1->GetDz(i)/track1->GetSigmaZ(i))*(track1->GetDz(i)/track1->GetSigmaZ(i));
e43c066c 3035 //chi21 = (track1->fDy[i]*track1->fDy[i])/(nerry[i]*nerry[i])+
b9671574 3036 // (track1->GetDz(i)*track1->GetDz(i))/(nerrz[i]*nerrz[i]);
e43c066c 3037 }else{
b9671574 3038 if (TMath::Abs(track1->GetSigmaY(i)>0.)) c1=1;
e43c066c 3039 }
3040 //
b9671574 3041 if (TMath::Abs(track2->GetDy(i))>0.) {
3042 chi22 = (track2->GetDy(i)/track2->GetSigmaY(i))*(track2->GetDy(i)/track2->GetSigmaY(i))+
3043 (track2->GetDz(i)/track2->GetSigmaZ(i))*(track2->GetDz(i)/track2->GetSigmaZ(i));
e43c066c 3044 //chi22 = (track2->fDy[i]*track2->fDy[i])/(nerry[i]*nerry[i])+
3045 // (track2->fDz[i]*track2->fDz[i])/(nerrz[i]*nerrz[i]);
3046 }
3047 else{
b9671574 3048 if (TMath::Abs(track2->GetSigmaY(i)>0.)) c2=1;
e43c066c 3049 }
3050 sumchi2+=w1*(1.+c1)*(1+c1)*(chi21+c1)+w2*(1.+c2)*(1+c2)*(chi22+c2);
3051 if (chi21>0) sum+=w1;
3052 if (chi22>0) sum+=w2;
3053 conflict+=(c1+c2);
3054 }
b9671574 3055 Double_t norm = sum-w1*track1->GetNSkipped()-w2*track2->GetNSkipped();
3056 if (norm<0) norm =1/(w1*track1->GetNSkipped()+w2*track2->GetNSkipped());
e43c066c 3057 Double_t normchi2 = 2*conflict+sumchi2/sum;
3058 if ( normchi2 <maxchi2 ){
3059 index1 = itrack1;
3060 index2 = itrack2;
3061 maxconflicts = conflict;
3062 maxchi2 = normchi2;
3063 }
3064 }
3065 UnRegisterClusterTracks(track1,trackID1);
3066 }
3067 //
3068 // if (maxconflicts<4 && maxchi2<th0){
3069 if (maxchi2<th0*2.){
b9671574 3070 Float_t orig = track10->GetFakeRatio()*track10->GetNumberOfClusters();
15dd636f 3071 AliITStrackMI* track1=(AliITStrackMI*) arr1->UncheckedAt(index1);
b9671574 3072 track1->SetChi2MIP(5,maxconflicts);
3073 track1->SetChi2MIP(6,maxchi2);
3074 track1->SetChi2MIP(7,0.01+orig-(track1->GetFakeRatio()*track1->GetNumberOfClusters()));
e43c066c 3075 // track1->UpdateESDtrack(AliESDtrack::kITSin);
b9671574 3076 track1->SetChi2MIP(8,index1);
e43c066c 3077 fBestTrackIndex[trackID1] =index1;
3078 UpdateESDtrack(track1, AliESDtrack::kITSin);
3079 }
b9671574 3080 else if (track10->GetChi2MIP(0)<th1){
3081 track10->SetChi2MIP(5,maxconflicts);
3082 track10->SetChi2MIP(6,maxchi2);
e43c066c 3083 // track10->UpdateESDtrack(AliESDtrack::kITSin);
3084 UpdateESDtrack(track10,AliESDtrack::kITSin);
3085 }
3086
3087 for (Int_t itrack=0;itrack<entries1;itrack++){
15dd636f 3088 AliITStrackMI * track=(AliITStrackMI*) arr1->UncheckedAt(itrack);
e43c066c 3089 UnRegisterClusterTracks(track,trackID1);
3090 }
3091 //
3092 for (Int_t itrack=0;itrack<entries2;itrack++){
15dd636f 3093 AliITStrackMI * track=(AliITStrackMI*) arr2->UncheckedAt(itrack);
e43c066c 3094 UnRegisterClusterTracks(track,trackID2);
3095 }
3096
44347160 3097 if (track10->GetConstrain()&&track10->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&track10->GetChi2MIP(1)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)
3098 &&track10->GetChi2MIP(2)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)&&track10->GetChi2MIP(3)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)){
3099 // if (track10->fChi2MIP[0]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&track10->fChi2MIP[1]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)
3100 // &&track10->fChi2MIP[2]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)&&track10->fChi2MIP[3]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)){
e43c066c 3101 RegisterClusterTracks(track10,trackID1);
3102 }
44347160 3103 if (track20->GetConstrain()&&track20->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&track20->GetChi2MIP(1)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)
3104 &&track20->GetChi2MIP(2)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)&&track20->GetChi2MIP(3)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)){
3105 //if (track20->fChi2MIP[0]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&track20->fChi2MIP[1]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)
3106 // &&track20->fChi2MIP[2]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)&&track20->fChi2MIP[3]<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)){
e43c066c 3107 RegisterClusterTracks(track20,trackID2);
3108 }
3109 return track10;
3110
3111}
44347160 3112//------------------------------------------------------------------------
e43c066c 3113void AliITStrackerMI::UseClusters(const AliKalmanTrack *t, Int_t from) const {
3114 //--------------------------------------------------------------------
3115 // This function marks clusters assigned to the track
3116 //--------------------------------------------------------------------
3117 AliTracker::UseClusters(t,from);
3118
00a7cc50 3119 AliITSRecPoint *c=(AliITSRecPoint *)GetCluster(t->GetClusterIndex(0));
e43c066c 3120 //if (c->GetQ()>2) c->Use();
3121 if (c->GetSigmaZ2()>0.1) c->Use();
00a7cc50 3122 c=(AliITSRecPoint *)GetCluster(t->GetClusterIndex(1));
e43c066c 3123 //if (c->GetQ()>2) c->Use();
3124 if (c->GetSigmaZ2()>0.1) c->Use();
3125
3126}
44347160 3127//------------------------------------------------------------------------
15dd636f 3128void AliITStrackerMI::AddTrackHypothesys(AliITStrackMI * track, Int_t esdindex)
e43c066c 3129{
3130 //------------------------------------------------------------------
3131 // add track to the list of hypothesys
3132 //------------------------------------------------------------------
3133
fddf8459 3134 if (esdindex>=fTrackHypothesys.GetEntriesFast())
3135 fTrackHypothesys.Expand(TMath::Max(fTrackHypothesys.GetSize(),esdindex*2+10));
e43c066c 3136 //
3137 TObjArray * array = (TObjArray*) fTrackHypothesys.At(esdindex);
3138 if (!array) {
3139 array = new TObjArray(10);
3140 fTrackHypothesys.AddAt(array,esdindex);
3141 }
3142 array->AddLast(track);
3143}
44347160 3144//------------------------------------------------------------------------
e43c066c 3145void AliITStrackerMI::SortTrackHypothesys(Int_t esdindex, Int_t maxcut, Int_t mode)
3146{
3147 //-------------------------------------------------------------------
3148 // compress array of track hypothesys
3149 // keep only maxsize best hypothesys
3150 //-------------------------------------------------------------------
3151 if (esdindex>fTrackHypothesys.GetEntriesFast()) return;
3152 if (! (fTrackHypothesys.At(esdindex)) ) return;
3153 TObjArray * array = (TObjArray*) fTrackHypothesys.At(esdindex);
3154 Int_t entries = array->GetEntriesFast();
3155 //
3156 //- find preliminary besttrack as a reference
3157 Float_t minchi2=10000;
3158 Int_t maxn=0;
15dd636f 3159 AliITStrackMI * besttrack=0;
e43c066c 3160 for (Int_t itrack=0;itrack<array->GetEntriesFast();itrack++){
15dd636f 3161 AliITStrackMI * track = (AliITStrackMI*)array->At(itrack);
e43c066c 3162 if (!track) continue;
3163 Float_t chi2 = NormalizedChi2(track,0);
3164 //
b9671574 3165 Int_t tpcLabel=track->GetESDtrack()->GetTPCLabel();
e43c066c 3166 track->SetLabel(tpcLabel);
3167 CookdEdx(track);
b9671574 3168 track->SetFakeRatio(1.);
e43c066c 3169 CookLabel(track,0.); //For comparison only
3170 //
44347160 3171 //if (chi2<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&track->fFakeRatio==0){
3172 if (chi2<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)){
e43c066c 3173 if (track->GetNumberOfClusters()<maxn) continue;
3174 maxn = track->GetNumberOfClusters();
3175 if (chi2<minchi2){
3176 minchi2=chi2;
3177 besttrack=track;
3178 }
3179 }
3180 else{
b9671574 3181 if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain
628e7bb0 3182 delete array->RemoveAt(itrack);
3183 }
e43c066c 3184 }
3185 }
3186 if (!besttrack) return;
3187 //
3188 //
3189 //take errors of best track as a reference
3190 Float_t *erry = GetErrY(esdindex), *errz = GetErrZ(esdindex);
3191 Float_t *ny = GetNy(esdindex), *nz = GetNz(esdindex);
a5d0fae6 3192 for (Int_t j=0;j<6;j++) {
9fd412a8 3193 if (besttrack->GetClIndex(j)>=0){
a5d0fae6 3194 erry[j] = besttrack->GetSigmaY(j); erry[j+6] = besttrack->GetSigmaY(j+6);
3195 errz[j] = besttrack->GetSigmaZ(j); errz[j+6] = besttrack->GetSigmaZ(j+6);
3196 ny[j] = besttrack->GetNy(j);
3197 nz[j] = besttrack->GetNz(j);
e43c066c 3198 }
3199 }
3200 //
3201 // calculate normalized chi2
3202 //
3203 Float_t * chi2 = new Float_t[entries];
3204 Int_t * index = new Int_t[entries];
3205 for (Int_t i=0;i<entries;i++) chi2[i] =10000;
3206 for (Int_t itrack=0;itrack<entries;itrack++){
15dd636f 3207 AliITStrackMI * track = (AliITStrackMI*)array->At(itrack);
e43c066c 3208 if (track){
b9671574 3209 track->SetChi2MIP(0,GetNormalizedChi2(track, mode));
44347160 3210 if (track->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0))
b9671574 3211 chi2[itrack] = track->GetChi2MIP(0);
628e7bb0 3212 else{
b9671574 3213 if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain
628e7bb0 3214 delete array->RemoveAt(itrack);
3215 }
3216 }
e43c066c 3217 }
3218 }
3219 //
3220 TMath::Sort(entries,chi2,index,kFALSE);
15dd636f 3221 besttrack = (AliITStrackMI*)array->At(index[0]);
44347160 3222 if (besttrack&&besttrack->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)){
a5d0fae6 3223 for (Int_t j=0;j<6;j++){
9fd412a8 3224 if (besttrack->GetClIndex(j)>=0){
a5d0fae6 3225 erry[j] = besttrack->GetSigmaY(j); erry[j+6] = besttrack->GetSigmaY(j+6);
3226 errz[j] = besttrack->GetSigmaZ(j); erry[j+6] = besttrack->GetSigmaY(j+6);
3227 ny[j] = besttrack->GetNy(j);
3228 nz[j] = besttrack->GetNz(j);
e43c066c 3229 }
3230 }
3231 }
3232 //
3233 // calculate one more time with updated normalized errors
3234 for (Int_t i=0;i<entries;i++) chi2[i] =10000;
3235 for (Int_t itrack=0;itrack<entries;itrack++){
15dd636f 3236 AliITStrackMI * track = (AliITStrackMI*)array->At(itrack);
e43c066c 3237 if (track){
b9671574 3238 track->SetChi2MIP(0,GetNormalizedChi2(track,mode));
44347160 3239 if (track->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0))
b9671574 3240 chi2[itrack] = track->GetChi2MIP(0)-0*(track->GetNumberOfClusters()+track->GetNDeadZone());
628e7bb0 3241 else
3242 {
b9671574 3243 if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain
628e7bb0 3244 delete array->RemoveAt(itrack);
3245 }
3246 }
e43c066c 3247 }
3248 }
3249 entries = array->GetEntriesFast();
3250 //
628e7bb0 3251 //
e43c066c 3252 if (entries>0){
3253 TObjArray * newarray = new TObjArray();
3254 TMath::Sort(entries,chi2,index,kFALSE);
15dd636f 3255 besttrack = (AliITStrackMI*)array->At(index[0]);
e43c066c 3256 if (besttrack){
3257 //
a5d0fae6 3258 for (Int_t j=0;j<6;j++){
3259 if (besttrack->GetNz(j)>0&&besttrack->GetNy(j)>0){
3260 erry[j] = besttrack->GetSigmaY(j); erry[j+6] = besttrack->GetSigmaY(j+6);
3261 errz[j] = besttrack->GetSigmaZ(j); errz[j+6] = besttrack->GetSigmaZ(j+6);
3262 ny[j] = besttrack->GetNy(j);
3263 nz[j] = besttrack->GetNz(j);
e43c066c 3264 }
3265 }
b9671574 3266 besttrack->SetChi2MIP(0,GetNormalizedChi2(besttrack,mode));
a5d0fae6 3267 minchi2 = TMath::Min(besttrack->GetChi2MIP(0)+5.+besttrack->GetNUsed(), double(AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)));
e43c066c 3268 Float_t minn = besttrack->GetNumberOfClusters()-3;
3269 Int_t accepted=0;
3270 for (Int_t i=0;i<entries;i++){
15dd636f 3271 AliITStrackMI * track = (AliITStrackMI*)array->At(index[i]);
e43c066c 3272 if (!track) continue;
3273 if (accepted>maxcut) break;
b9671574 3274 track->SetChi2MIP(0,GetNormalizedChi2(track,mode));
3275 if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain
3276 if (track->GetNumberOfClusters()<6 && (track->GetChi2MIP(0)+track->GetNUsed()>minchi2)){
628e7bb0 3277 delete array->RemoveAt(index[i]);
3278 continue;
3279 }
e43c066c 3280 }
b9671574 3281 Bool_t shortbest = !track->GetConstrain() && track->GetNumberOfClusters()<6;
3282 if ((track->GetChi2MIP(0)+track->GetNUsed()<minchi2 && track->GetNumberOfClusters()>=minn) ||shortbest){
628e7bb0 3283 if (!shortbest) accepted++;
e43c066c 3284 //
3285 newarray->AddLast(array->RemoveAt(index[i]));
a5d0fae6 3286 for (Int_t j=0;j<6;j++){
3287 if (nz[j]==0){
3288 erry[j] = track->GetSigmaY(j); erry[j+6] = track->GetSigmaY(j+6);
3289 errz[j] = track->GetSigmaZ(j); errz[j] = track->GetSigmaZ(j+6);
3290 ny[j] = track->GetNy(j);
3291 nz[j] = track->GetNz(j);
e43c066c 3292 }
3293 }
3294 }
3295 else{
3296 delete array->RemoveAt(index[i]);
3297 }
3298 }
3299 array->Delete();
3300 delete fTrackHypothesys.RemoveAt(esdindex);
3301 fTrackHypothesys.AddAt(newarray,esdindex);
3302 }
3303 else{
3304 array->Delete();
3305 delete fTrackHypothesys.RemoveAt(esdindex);
3306 }
3307 }
3308 delete [] chi2;
3309 delete [] index;
3310}
44347160 3311//------------------------------------------------------------------------
15dd636f 3312AliITStrackMI * AliITStrackerMI::GetBestHypothesys(Int_t esdindex, AliITStrackMI * original, Int_t checkmax)
e43c066c 3313{
3314 //-------------------------------------------------------------
3315 // try to find best hypothesy
3316 // currently - minimal chi2 of track+backpropagated track+matching to the tpc track
3317 //-------------------------------------------------------------
3318 if (fTrackHypothesys.GetEntriesFast()<=esdindex) return 0;
3319 TObjArray * array = (TObjArray*) fTrackHypothesys.At(esdindex);
3320 if (!array) return 0;
3321 Int_t entries = array->GetEntriesFast();
3322 if (!entries) return 0;
3323 Float_t minchi2 = 100000;
15dd636f 3324 AliITStrackMI * besttrack=0;
e43c066c 3325 //
15dd636f 3326 AliITStrackMI * backtrack = new AliITStrackMI(*original);
3327 AliITStrackMI * forwardtrack = new AliITStrackMI(*original);
afd25725 3328 Double_t xyzVtx[]={GetX(),GetY(),GetZ()};
3329 Double_t ersVtx[]={GetSigmaX()/3.,GetSigmaY()/3.,GetSigmaZ()/3.};
e43c066c 3330 //
3331 for (Int_t i=0;i<entries;i++){
15dd636f 3332 AliITStrackMI * track = (AliITStrackMI*)array->At(i);
e43c066c 3333 if (!track) continue;
628e7bb0 3334 Float_t sigmarfi,sigmaz;
3335 GetDCASigma(track,sigmarfi,sigmaz);
b9671574 3336 track->SetDnorm(0,sigmarfi);
3337 track->SetDnorm(1,sigmaz);
628e7bb0 3338 //
b9671574 3339 track->SetChi2MIP(1,1000000);
3340 track->SetChi2MIP(2,1000000);
3341 track->SetChi2MIP(3,1000000);
e43c066c 3342 //
3343 // backtrack
15dd636f 3344 backtrack = new(backtrack) AliITStrackMI(*track);
afd25725 3345 if (track->GetConstrain()) {
e50912db 3346 if (!CorrectForPipeMaterial(backtrack,"inward")) continue;
afd25725 3347 if (!backtrack->Improve(0,xyzVtx,ersVtx)) continue;
6c94f330 3348 backtrack->ResetCovariance(10.);
628e7bb0 3349 }else{
6c94f330 3350 backtrack->ResetCovariance(10.);
628e7bb0 3351 }
e43c066c 3352 backtrack->ResetClusters();
628e7bb0 3353
e43c066c 3354 Double_t x = original->GetX();
3355 if (!RefitAt(x,backtrack,track)) continue;
628e7bb0 3356 //
b9671574 3357 track->SetChi2MIP(1,NormalizedChi2(backtrack,0));
e43c066c 3358 //for (Int_t i=2;i<6;i++){track->fDy[i]+=backtrack->fDy[i]; track->fDz[i]+=backtrack->fDz[i];}
44347160 3359 if (track->GetChi2MIP(1)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)*6.) continue;
b9671574 3360 track->SetChi22(GetMatchingChi2(backtrack,original));
e43c066c 3361
b9671574 3362 if ((track->GetConstrain()) && track->GetChi22()>90.) continue;
3363 if ((!track->GetConstrain()) && track->GetChi22()>30.) continue;
3364 if ( track->GetChi22()/track->GetNumberOfClusters()>11.) continue;
e43c066c 3365
3366
44347160 3367 if (!(track->GetConstrain())&&track->GetChi2MIP(1)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)) continue;
e43c066c 3368 //
3369 //forward track - without constraint
15dd636f 3370 forwardtrack = new(forwardtrack) AliITStrackMI(*original);
e43c066c 3371 forwardtrack->ResetClusters();
3372 x = track->GetX();
628e7bb0 3373 RefitAt(x,forwardtrack,track);
b9671574 3374 track->SetChi2MIP(2,NormalizedChi2(forwardtrack,0));
44347160 3375 if (track->GetChi2MIP(2)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)*6.0) continue;
3376 if (!(track->GetConstrain())&&track->GetChi2MIP(2)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)) continue;
e43c066c 3377
791f9a2a 3378 //track->fD[0] = forwardtrack->GetD(GetX(),GetY());
3379 //track->fD[1] = forwardtrack->GetZat(GetX())-GetZ();
b9671574 3380 forwardtrack->GetDZ(GetX(),GetY(),GetZ(),track->GetDP()); //I.B.
3381 forwardtrack->SetD(0,track->GetD(0));
3382 forwardtrack->SetD(1,track->GetD(1));
e43c066c 3383 {
3384 Int_t list[6];
00a7cc50 3385 AliITSRecPoint* clist[6];
b9671574 3386 track->SetChi2MIP(4,GetNumberOfSharedClusters(track,esdindex,list,clist));
3387 if ( (!track->GetConstrain()) && track->GetChi2MIP(4)>1.0) continue;
e43c066c 3388 }
3389
b9671574 3390 track->SetChi2MIP(3,GetInterpolatedChi2(forwardtrack,backtrack));
44347160 3391 if ( (track->GetChi2MIP(3)>6.*AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3))) continue;
3392 if ( (!track->GetConstrain()) && (track->GetChi2MIP(3)>2*AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3))) {
b9671574 3393 track->SetChi2MIP(3,1000);
e43c066c 3394 continue;
3395 }
b9671574 3396 Double_t chi2 = track->GetChi2MIP(0)+track->GetNUsed();
e43c066c 3397 //
3398 for (Int_t ichi=0;ichi<5;ichi++){
b9671574 3399 forwardtrack->SetChi2MIP(ichi, track->GetChi2MIP(ichi));
e43c066c 3400 }
3401 if (chi2 < minchi2){
15dd636f 3402 //besttrack = new AliITStrackMI(*forwardtrack);
99c2ee26 3403 besttrack = track;
e43c066c 3404 besttrack->SetLabel(track->GetLabel());
b9671574 3405 besttrack->SetFakeRatio(track->GetFakeRatio());
e43c066c 3406 minchi2 = chi2;
791f9a2a 3407 //original->fD[0] = forwardtrack->GetD(GetX(),GetY());
3408 //original->fD[1] = forwardtrack->GetZat(GetX())-GetZ();
b9671574 3409 forwardtrack->GetDZ(GetX(),GetY(),GetZ(),original->GetDP()); //I.B.
e43c066c 3410 }
3411 }
3412 delete backtrack;
3413 delete forwardtrack;
3414 Int_t accepted=0;
3415 for (Int_t i=0;i<entries;i++){
fddf8459 3416 AliITStrackMI * track = (AliITStrackMI*)array->At(i);
3417
e43c066c 3418 if (!track) continue;
628e7bb0 3419
44347160 3420 if (accepted>checkmax || track->GetChi2MIP(3)>AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)*6. ||
e43c066c 3421 (track->GetNumberOfClusters()<besttrack->GetNumberOfClusters()-1.)||
b9671574 3422 track->GetChi2MIP(0)>besttrack->GetChi2MIP(0)+2.*besttrack->GetNUsed()+3.){
3423 if (track->GetConstrain() || track->GetNumberOfClusters()>5){ //keep best short tracks - without vertex constrain
628e7bb0 3424 delete array->RemoveAt(i);
3425 continue;
3426 }
e43c066c 3427 }
3428 else{
3429 accepted++;
3430 }
3431 }
3432 //
3433 array->Compress();
3434 SortTrackHypothesys(esdindex,checkmax,1);
fddf8459 3435
e43c066c 3436 array = (TObjArray*) fTrackHypothesys.At(esdindex);
afdf9b9c 3437 if (!array) return 0; // PH What can be the reason? Check SortTrackHypothesys
15dd636f 3438 besttrack = (AliITStrackMI*)array->At(0);
e43c066c 3439 if (!besttrack) return 0;
b9671574 3440 besttrack->SetChi2MIP(8,0);
e43c066c 3441 fBestTrackIndex[esdindex]=0;
3442 entries = array->GetEntriesFast();
15dd636f 3443 AliITStrackMI *longtrack =0;
e43c066c 3444 minchi2 =1000;
b9671574 3445 Float_t minn=besttrack->GetNumberOfClusters()+besttrack->GetNDeadZone();
6518a6c5 3446 for (Int_t itrack=entries-1;itrack>0;itrack--) {
15dd636f 3447 AliITStrackMI * track = (AliITStrackMI*)array->At(itrack);
b9671574 3448 if (!track->GetConstrain()) continue;
3449 if (track->GetNumberOfClusters()+track->GetNDeadZone()<minn) continue;
3450 if (track->GetChi2MIP(0)-besttrack->GetChi2MIP(0)>0.0) continue;
3451 if (track->GetChi2MIP(0)>4.) continue;
3452 minn = track->GetNumberOfClusters()+track->GetNDeadZone();
e43c066c 3453 longtrack =track;
3454 }
3455 //if (longtrack) besttrack=longtrack;
3456
3457 Int_t list[6];
00a7cc50 3458 AliITSRecPoint * clist[6];
e43c066c 3459 Float_t shared = GetNumberOfSharedClusters(besttrack,esdindex,list,clist);
44347160 3460 if (besttrack->GetConstrain()&&besttrack->GetChi2MIP(0)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(0)&&besttrack->GetChi2MIP(1)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(1)
3461 &&besttrack->GetChi2MIP(2)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(2)&&besttrack->GetChi2MIP(3)<AliITSReconstructor::GetRecoParam()->GetMaxChi2PerCluster(3)){
e43c066c 3462 RegisterClusterTracks(besttrack,esdindex);
3463 }
3464 //
3465 //
3466 if (shared>0.0){
3467 Int_t nshared;
3468 Int_t overlist[6];
3469 Int_t sharedtrack = GetOverlapTrack(besttrack, esdindex, nshared, list, overlist);
3470 if (sharedtrack>=0){
3471 //
3472 besttrack = GetBest2Tracks(esdindex,sharedtrack,10,5.5);
3473 if (besttrack){
3474 shared = GetNumberOfSharedClusters(besttrack,esdindex,list,clist);
3475 }
3476 else return 0;
3477 }
3478 }
3479
3480 if (shared>2.5) return 0;
3481 if (shared>1.0) return besttrack;
3482 //
628e7bb0 3483 // Don't sign clusters if not gold track
3484 //
3485 if (!besttrack->IsGoldPrimary()) return besttrack;
b9671574 3486 if (besttrack->GetESDtrack()->GetKinkIndex(0)!=0) return besttrack; //track belong to kink
628e7bb0 3487 //
e43c066c 3488 if (fConstraint[fPass]){
3489 //
3490 // sign clusters
3491 //
3492 Float_t *ny = GetNy(esdindex), *nz = GetNz(esdindex);
3493 for (Int_t i=0;i<6;i++){
b9671574 3494 Int_t index = besttrack->GetClIndex(i);
9fd412a8 3495 if (index<0) continue;
e43c066c 3496 Int_t ilayer = (index & 0xf0000000) >> 28;
b9671574 3497 if (besttrack->GetSigmaY(ilayer)<0.00000000001) continue;
00a7cc50 3498 AliITSRecPoint *c = (AliITSRecPoint*)GetCluster(index);
e43c066c 3499 if (!c) continue;
3500 if (ilayer>3&&c->GetNy()+c->GetNz()>6) continue;
3501 if ( (c->GetNy()+c->GetNz() )> ny[i]+nz[i]+0.7) continue; //shared track
3502 if ( c->GetNz()> nz[i]+0.7) continue; //shared track
572f41f9 3503 if ( ilayer>2&& AliITSReconstructor::GetRecoParam()->GetUseAmplitudeInfo(ilayer))
3504 if (besttrack->GetNormQ(ilayer)/besttrack->GetExpQ()>1.5) continue;
e43c066c 3505 //if ( c->GetNy()> ny[i]+0.7) continue; //shared track
3506
3507 Bool_t cansign = kTRUE;
3508 for (Int_t itrack=0;itrack<entries; itrack++){
15dd636f 3509 AliITStrackMI * track = (AliITStrackMI*)array->At(i);
e43c066c 3510 if (!track) continue;
b9671574 3511 if (track->GetChi2MIP(0)>besttrack->GetChi2MIP(0)+2.*shared+1.) break;
9fd412a8 3512 if ( (track->GetClIndex(ilayer)>=0) && (track->GetClIndex(ilayer)!=besttrack->GetClIndex(ilayer))){
e43c066c 3513 cansign = kFALSE;
3514 break;
3515 }
3516 }
3517 if (cansign){
b9671574 3518 if (TMath::Abs(besttrack->GetDy(ilayer)/besttrack->GetSigmaY(ilayer))>3.) continue;
3519 if (TMath::Abs(besttrack->GetDz(ilayer)/besttrack->GetSigmaZ(ilayer))>3.) continue;
e43c066c 3520 if (!c->IsUsed()) c->Use();
3521 }
3522 }
3523 }
3524 return besttrack;
3525}
44347160 3526//------------------------------------------------------------------------
e43c066c 3527void AliITStrackerMI::GetBestHypothesysMIP(TObjArray &itsTracks)
3528{
3529 //
3530 // get "best" hypothesys
628e7bb0 3531 //
e43c066c 3532
3533 Int_t nentries = itsTracks.GetEntriesFast();
3534 for (Int_t i=0;i<nentries;i++){
15dd636f 3535 AliITStrackMI* track = (AliITStrackMI*)itsTracks.At(i);
e43c066c 3536 if (!track) continue;
3537 TObjArray * array = (TObjArray*) fTrackHypothesys.At(i);
3538 if (!array) continue;
3539 if (array->GetEntriesFast()<=0) continue;
3540 //
15dd636f 3541 AliITStrackMI* longtrack=0;
e43c066c 3542 Float_t minn=0;
3543 Float_t maxchi2=1000;
3544 for (Int_t j=0;j<array->GetEntriesFast();j++){
a5d0fae6 3545 AliITStrackMI* trackHyp = (AliITStrackMI*)array->At(j);
3546 if (!trackHyp) continue;
3547 if (trackHyp->GetGoldV0()) {
3548 longtrack = trackHyp; //gold V0 track taken
628e7bb0 3549 break;
3550 }
a5d0fae6 3551 if (trackHyp->GetNumberOfClusters()+trackHyp->GetNDeadZone()<minn) continue;
3552 Float_t chi2 = trackHyp->GetChi2MIP(0);
628e7bb0 3553 if (fAfterV0){
a5d0fae6 3554 if (!trackHyp->GetGoldV0()&&trackHyp->GetConstrain()==kFALSE) chi2+=5;
628e7bb0 3555 }
a5d0fae6 3556 if (trackHyp->GetNumberOfClusters()+trackHyp->GetNDeadZone()>minn) maxchi2 = trackHyp->GetChi2MIP(0);
628e7bb0 3557 //
3558 if (chi2 > maxchi2) continue;
a5d0fae6 3559 minn= trackHyp->GetNumberOfClusters()+trackHyp->GetNDeadZone();
628e7bb0 3560 maxchi2 = chi2;
a5d0fae6 3561 longtrack=trackHyp;
e43c066c 3562 }
628e7bb0 3563 //
3564 //
3565 //
15dd636f 3566 AliITStrackMI * besttrack = (AliITStrackMI*)array->At(0);
e43c066c 3567 if (!longtrack) {longtrack = besttrack;}
3568 else besttrack= longtrack;
628e7bb0 3569 //
afd25725 3570 if (besttrack) {
e43c066c 3571 Int_t list[6];
00a7cc50 3572 AliITSRecPoint * clist[6];
e43c066c 3573 Float_t shared = GetNumberOfSharedClusters(longtrack,i,list,clist);
3574 //
b9671574 3575 track->SetNUsed(shared);
3576 track->SetNSkipped(besttrack->GetNSkipped());
3577 track->SetChi2MIP(0,besttrack->GetChi2MIP(0));
afd25725 3578 if (shared>0) {
3579 if(!AliITSReconstructor::GetRecoParam()->GetAllowSharedClusters()) continue;
e43c066c 3580 Int_t nshared;
3581 Int_t overlist[6];
3582 //
3583 Int_t sharedtrack = GetOverlapTrack(longtrack, i, nshared, list, overlist);
3584 //if (sharedtrack==-1) sharedtrack=0;
afd25725 3585 if (sharedtrack>=0) {
e43c066c 3586 besttrack = GetBest2Tracks(i,sharedtrack,10,5.5);
3587 }
3588 }
afd25725 3589 if (besttrack&&fAfterV0) {
628e7bb0 3590 UpdateESDtrack(besttrack,AliESDtrack::kITSin);
3591 }
e43c066c 3592 if (besttrack&&fConstraint[fPass])
3593 UpdateESDtrack(besttrack,AliESDtrack::kITSin);
afd25725 3594 if (besttrack->GetChi2MIP(0)+besttrack->GetNUsed()>1.5 && fConstraint[fPass]) {
3595 if ( TMath::Abs(besttrack->GetD(0))>0.1 ||
3596 TMath::Abs(besttrack->GetD(1))>0.1 ) track->SetReconstructed(kFALSE);
e43c066c 3597 }
3598
3599 }
3600 }
3601}
44347160 3602//------------------------------------------------------------------------
15dd636f 3603void AliITStrackerMI::CookLabel(AliITStrackMI *track,Float_t wrong) const {
e43c066c 3604 //--------------------------------------------------------------------
3605 //This function "cooks" a track label. If label<0, this track is fake.
3606 //--------------------------------------------------------------------
3607 Int_t tpcLabel=-1;
3608
b9671574 3609 if ( track->GetESDtrack()) tpcLabel = TMath::Abs(track->GetESDtrack()->GetTPCLabel());
e43c066c 3610
b9671574 3611 track->SetChi2MIP(9,0);
e43c066c 3612 Int_t nwrong=0;
3613 for (Int_t i=0;i<track->GetNumberOfClusters();i++){
3614 Int_t cindex = track->GetClusterIndex(i);
3615 Int_t l=(cindex & 0xf0000000) >> 28;
00a7cc50 3616 AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(cindex);
e43c066c 3617 Int_t isWrong=1;
3618 for (Int_t ind=0;ind<3;ind++){
3619 if (tpcLabel>0)
3620 if (cl->GetLabel(ind)==tpcLabel) isWrong=0;
9be1d1c7 3621 AliDebug(2,Form("icl %d ilab %d lab %d",i,ind,cl->GetLabel(ind)));
e43c066c 3622 }
b9671574 3623 track->SetChi2MIP(9,track->GetChi2MIP(9)+isWrong*(2<<l));
e43c066c 3624 nwrong+=isWrong;
3625 }
7d43b4c4 3626 Int_t nclusters = track->GetNumberOfClusters();
3627 if (nclusters > 0) //PH Some tracks don't have any cluster
3628 track->SetFakeRatio(double(nwrong)/double(nclusters));
e43c066c 3629 if (tpcLabel>0){
b9671574 3630 if (track->GetFakeRatio()>wrong) track->SetLabel(-tpcLabel);
e43c066c 3631 else
b9671574 3632 track->SetLabel(tpcLabel);
e43c066c 3633 }
9be1d1c7 3634 AliDebug(2,Form(" nls %d wrong %d label %d tpcLabel %d\n",nclusters,nwrong,track->GetLabel(),tpcLabel));
e43c066c 3635
3636}
44347160 3637//------------------------------------------------------------------------
15dd636f 3638void AliITStrackerMI::CookdEdx(AliITStrackMI* track)
e43c066c 3639{
3640 //
b9671574 3641 track->SetChi2MIP(9,0);
e43c066c 3642 for (Int_t i=0;i<track->GetNumberOfClusters();i++){
3643 Int_t cindex = track->GetClusterIndex(i);
3644 Int_t l=(cindex & 0xf0000000) >> 28;
00a7cc50 3645 AliITSRecPoint *cl = (AliITSRecPoint*)GetCluster(cindex);
b9671574 3646 Int_t lab = TMath::Abs(track->GetESDtrack()->GetTPCLabel());
e43c066c 3647 Int_t isWrong=1;
3648 for (Int_t ind=0;ind<3;ind++){
3649 if (cl->GetLabel(ind)==lab) isWrong=0;
3650 }
b9671574 3651 track->SetChi2MIP(9,track->GetChi2MIP(9)+isWrong*(2<<l));
e43c066c 3652 }
e43c066c 3653 Double_t low=0.;
3654 Double_t up=0.51;
09cf9d66 3655 track->CookdEdx(low,up);
e43c066c 3656}
44347160 3657//------------------------------------------------------------------------
e50912db 3658void AliITStrackerMI::MakeCoefficients(Int_t ntracks){
e43c066c 3659 //
a70ed6ad 3660 // Create some arrays
e43c066c 3661 //
afd25725 3662 if (fCoefficients) delete []fCoefficients;
3663 fCoefficients = new Float_t[ntracks*48];
3664 for (Int_t i=0;i<ntracks*48;i++) fCoefficients[i]=-1.;
e43c066c 3665}
44347160 3666//------------------------------------------------------------------------
00a7cc50 3667Double_t AliITStrackerMI::GetPredictedChi2MI(AliITStrackMI* track, const AliITSRecPoint *cluster,Int_t layer)
e43c066c 3668{
3669 //
a70ed6ad 3670 // Compute predicted chi2
e43c066c 3671 //
d9ead1a0 3672 Float_t erry,errz,covyz;
e43c066c 3673 Float_t theta = track->GetTgl();
3674 Float_t phi = track->GetSnp();
60e55aee 3675 phi = TMath::Abs(phi)*TMath::Sqrt(1./((1.-phi)*(1.+phi)));
d9ead1a0 3676 AliITSClusterParam::GetError(layer,cluster,theta,phi,track->GetExpQ(),erry,errz,covyz);
4187a601 3677 AliDebug(2,Form(" chi2: tr-cl %f %f tr X %f cl X %f",track->GetY()-cluster->GetY(),track->GetZ()-cluster->GetZ(),track->GetX(),cluster->GetX()));
1c97ce2f 3678 // Take into account the mis-alignment (bring track to cluster plane)
3679 Double_t xTrOrig=track->GetX();
9be1d1c7 3680 if (!track->Propagate(xTrOrig+cluster->GetX())) return 1000.;
4187a601 3681 AliDebug(2,Form(" chi2: tr-cl %f %f tr X %f cl X %f",track->GetY()-cluster->GetY(),track->GetZ()-cluster->GetZ(),track->GetX(),cluster->GetX()));
d9ead1a0 3682 Double_t chi2 = track->GetPredictedChi2MI(cluster->GetY(),cluster->GetZ(),erry,errz,covyz);
1c97ce2f 3683 // Bring the track back to detector plane in ideal geometry
3684 // [mis-alignment will be accounted for in UpdateMI()]
9be1d1c7 3685 if (!track->Propagate(xTrOrig)) return 1000.;
e43c066c 3686 Float_t ny,nz;
e50912db 3687 AliITSClusterParam::GetNTeor(layer,cluster,theta,phi,ny,nz);
e43c066c 3688 Double_t delta = cluster->GetNy()+cluster->GetNz()-nz-ny;
3689 if (delta>1){
3690 chi2+=0.5*TMath::Min(delta/2,2.);
3691 chi2+=2.*cluster->GetDeltaProbability();
3692 }
3693 //
b9671574 3694 track->SetNy(layer,ny);
3695 track->SetNz(layer,nz);
3696 track->SetSigmaY(layer,erry);
3697 track->SetSigmaZ(layer, errz);
d9ead1a0 3698 track->SetSigmaYZ(layer,covyz);
e43c066c 3699 //track->fNormQ[layer] = cluster->GetQ()/TMath::Sqrt(1+theta*theta+phi*phi);
60e55aee 3700 track->SetNormQ(layer,cluster->GetQ()/TMath::Sqrt((1.+ track->GetTgl()*track->GetTgl())/((1.-track->GetSnp())*(1.+track->GetSnp()))));
e43c066c 3701 return chi2;
3702
3703}
e50912db 3704//------------------------------------------------------------------------
3705Int_t AliITStrackerMI::UpdateMI(AliITStrackMI* track, const AliITSRecPoint* cl,Double_t chi2,Int_t index) const
e43c066c 3706{
3707 //
a70ed6ad 3708 // Update ITS track
e43c066c 3709 //
3710 Int_t layer = (index & 0xf0000000) >> 28;
b9671574 3711 track->SetClIndex(layer, index);
572f41f9 3712 if (layer>1&&AliITSReconstructor::GetRecoParam()->GetUseAmplitudeInfo(layer)) {
3713 if (track->GetNormQ(layer)/track->GetExpQ()<0.5 ) {
3714 chi2+= (0.5-track->GetNormQ(layer)/track->GetExpQ())*10.;
3715 track->SetdEdxMismatch(track->GetdEdxMismatch()+(0.5-track->GetNormQ(layer)/track->GetExpQ())*10.);
3716 }
e43c066c 3717 }
a504d56f 3718
1f3e997f 3719 if (cl->GetQ()<=0) return 0; // ingore the "virtual" clusters
a504d56f 3720
afd25725 3721
1c97ce2f 3722 // Take into account the mis-alignment (bring track to cluster plane)
3723 Double_t xTrOrig=track->GetX();
4187a601 3724 Float_t clxyz[3]; cl->GetGlobalXYZ(clxyz);Double_t trxyz[3]; track->GetXYZ(trxyz);
3725 AliDebug(2,Form("gtr %f %f %f",trxyz[0],trxyz[1],trxyz[2]));
3726 AliDebug(2,Form("gcl %f %f %f",clxyz[0],clxyz[1],clxyz[2]));
3727 AliDebug(2,Form(" xtr %f xcl %f",track->GetX(),cl->GetX()));
fddf8459 3728
9be1d1c7 3729 if (!track->Propagate(xTrOrig+cl->GetX())) return 0;
1f3e997f 3730
150f264c 3731 AliCluster c(*cl);
3732 c.SetSigmaY2(track->GetSigmaY(layer)*track->GetSigmaY(layer));
3733 c.SetSigmaZ2(track->GetSigmaZ(layer)*track->GetSigmaZ(layer));
d9ead1a0 3734 c.SetSigmaYZ(track->GetSigmaYZ(layer));
150f264c 3735
1c97ce2f 3736
3737 Int_t updated = track->UpdateMI(&c,chi2,index);
1c97ce2f 3738 // Bring the track back to detector plane in ideal geometry
9be1d1c7 3739 if (!track->Propagate(xTrOrig)) return 0;
d9ead1a0 3740
4187a601 3741 if(!updated) AliDebug(2,"update failed");
1c97ce2f 3742 return updated;
e43c066c 3743}
150f264c 3744
44347160 3745//------------------------------------------------------------------------
a70ed6ad 3746void AliITStrackerMI::GetDCASigma(const AliITStrackMI* track, Float_t & sigmarfi, Float_t &sigmaz)
628e7bb0 3747{
3748 //
3749 //DCA sigmas parameterization
3750 //to be paramterized using external parameters in future
3751 //
3752 //
afd25725 3753 sigmarfi = 0.0040+1.4 *TMath::Abs(track->GetC())+332.*track->GetC()*track->GetC();
3754 sigmaz = 0.0110+4.37*TMath::Abs(track->GetC());
628e7bb0 3755}
e50912db 3756//------------------------------------------------------------------------
a70ed6ad 3757void AliITStrackerMI::SignDeltas(const TObjArray *clusterArray, Float_t vz)
e43c066c 3758{
3759 //
a70ed6ad 3760 // Clusters from delta electrons?
e43c066c 3761 //
a70ed6ad 3762 Int_t entries = clusterArray->GetEntriesFast();
e43c066c 3763 if (entries<4) return;
a70ed6ad 3764 AliITSRecPoint* cluster = (AliITSRecPoint*)clusterArray->At(0);
e43c066c 3765 Int_t layer = cluster->GetLayer();
3766 if (layer>1) return;
3767 Int_t index[10000];
3768 Int_t ncandidates=0;
3769 Float_t r = (layer>0)? 7:4;
3770 //
3771 for (Int_t i=0;i<entries;i++){
a70ed6ad 3772 AliITSRecPoint* cl0 = (AliITSRecPoint*)clusterArray->At(i);
e43c066c 3773 Float_t nz = 1+TMath::Abs((cl0->GetZ()-vz)/r);
3774 if (cl0->GetNy()+cl0->GetNz()<=5+2*layer+nz) continue;
3775 index[ncandidates] = i; //candidate to belong to delta electron track
3776 ncandidates++;
3777 if (cl0->GetNy()+cl0->GetNz()>9+2*layer+nz) {
3778 cl0->SetDeltaProbability(1);
3779 }
3780 }
3781 //
3782 //
3783 //
3784 for (Int_t i=0;i<ncandidates;i++){
a70ed6ad 3785 AliITSRecPoint* cl0 = (AliITSRecPoint*)clusterArray->At(index[i]);
e43c066c 3786 if (cl0->GetDeltaProbability()>0.8) continue;
3787 //
3788 Int_t ncl = 0;
3789 Float_t y[100],z[100],sumy,sumz,sumy2, sumyz, sumw;
3790 sumy=sumz=sumy2=sumyz=sumw=0.0;
3791 for (Int_t j=0;j<ncandidates;j++){
3792 if (i==j) continue;
a70ed6ad 3793 AliITSRecPoint* cl1 = (AliITSRecPoint*)clusterArray->At(index[j]);
e43c066c 3794 //
3795 Float_t dz = cl0->GetZ()-cl1->GetZ();
3796 Float_t dy = cl0->GetY()-cl1->GetY();
3797 if (TMath::Sqrt(dz*dz+dy*dy)<0.2){
3798 Float_t weight = cl1->GetNy()+cl1->GetNz()-2;
3799 y[ncl] = cl1->GetY();
3800 z[ncl] = cl1->GetZ();
3801 sumy+= y[ncl]*weight;
3802 sumz+= z[ncl]*weight;
3803 sumy2+=y[ncl]*y[ncl]*weight;
3804 sumyz+=y[ncl]*z[ncl]*weight;
3805 sumw+=weight;
3806 ncl++;
3807 }
3808 }
3809 if (ncl<4) continue;
3810 Float_t det = sumw*sumy2 - sumy*sumy;
3811 Float_t delta=1000;
3812 if (TMath::Abs(det)>0.01){
3813 Float_t z0 = (sumy2*sumz - sumy*sumyz)/det;
3814 Float_t k = (sumyz*sumw - sumy*sumz)/det;
3815 delta = TMath::Abs(cl0->GetZ()-(z0+k*cl0->GetY()));
3816 }
3817 else{
3818 Float_t z0 = sumyz/sumy;
3819 delta = TMath::Abs(cl0->GetZ()-z0);
3820 }
3821 if ( delta<0.05) {
3822 cl0->SetDeltaProbability(1-20.*delta);
3823 }
3824 }
3825}
44347160 3826//------------------------------------------------------------------------
15dd636f 3827void AliITStrackerMI::UpdateESDtrack(AliITStrackMI* track, ULong_t flags) const
e43c066c 3828{
3829 //
a70ed6ad 3830 // Update ESD track
e43c066c 3831 //
3832 track->UpdateESDtrack(flags);
b9671574 3833 AliITStrackMI * oldtrack = (AliITStrackMI*)(track->GetESDtrack()->GetITStrack());
99c2ee26 3834 if (oldtrack) delete oldtrack;
b9671574 3835 track->GetESDtrack()->SetITStrack(new AliITStrackMI(*track));
3836 if (TMath::Abs(track->GetDnorm(1))<0.000000001){
628e7bb0 3837 printf("Problem\n");
3838 }
e43c066c 3839}
44347160 3840//------------------------------------------------------------------------
81e97e0d 3841Int_t AliITStrackerMI::GetNearestLayer(const Double_t *xr) const{
3842 //
ae00569a 3843 // Get nearest upper layer close to the point xr.
81e97e0d 3844 // rough approximation
3845 //
bf6adc12 3846 const Float_t kRadiuses[6]={4,6.5,15.03,24.,38.5,43.7};
81e97e0d 3847 Float_t radius = TMath::Sqrt(xr[0]*xr[0]+xr[1]*xr[1]);
3848 Int_t res =6;
3849 for (Int_t i=0;i<6;i++){
bf6adc12 3850 if (radius<kRadiuses[i]){
81e97e0d 3851 res =i;
3852 break;
3853 }
3854 }
3855 return res;
3856}
44347160 3857//------------------------------------------------------------------------
e50912db 3858void AliITStrackerMI::BuildMaterialLUT(TString material) {
3859 //--------------------------------------------------------------------
3860 // Fill a look-up table with mean material
3861 //--------------------------------------------------------------------
3862
3863 Int_t n=1000;
3864 Double_t mparam[7];
3865 Double_t point1[3],point2[3];
3866 Double_t phi,cosphi,sinphi,z;
3867 // 0-5 layers, 6 pipe, 7-8 shields
1ec3c859 3868 Double_t rmin[9]={ 3.5, 5.5,13.0,22.0,35.0,41.0, 2.0, 8.0,25.0};
3869 Double_t rmax[9]={ 5.5, 8.0,17.0,26.0,41.0,47.0, 3.0,10.5,30.0};
e50912db 3870
3871 Int_t ifirst=0,ilast=0;
3872 if(material.Contains("Pipe")) {
3873 ifirst=6; ilast=6;
3874 } else if(material.Contains("Shields")) {
3875 ifirst=7; ilast=8;
3876 } else if(material.Contains("Layers")) {
3877 ifirst=0; ilast=5;
3878 } else {
3879 Error("BuildMaterialLUT","Wrong layer name\n");
3880 }
3881
3882 for(Int_t imat=ifirst; imat<=ilast; imat++) {
3883 Double_t param[5]={0.,0.,0.,0.,0.};
3884 for (Int_t i=0; i<n; i++) {
3885 phi = 2.*TMath::Pi()*gRandom->Rndm();
3886 cosphi = TMath::Cos(phi); sinphi = TMath::Sin(phi);
3887 z = 14.*(-1.+2.*gRandom->Rndm()); // SPD barrel
3888 point1[0] = rmin[imat]*cosphi;
3889 point1[1] = rmin[imat]*sinphi;
3890 point1[2] = z;
3891 point2[0] = rmax[imat]*cosphi;
3892 point2[1] = rmax[imat]*sinphi;
3893 point2[2] = z;
3894 AliTracker::MeanMaterialBudget(point1,point2,mparam);
3895 for(Int_t j=0;j<5;j++) param[j]+=mparam[j];
3896 }
3897 for(Int_t j=0;j<5;j++) param[j]/=(Float_t)n;
3898 if(imat<=5) {
3899 fxOverX0Layer[imat] = param[1];
3900 fxTimesRhoLayer[imat] = param[0]*param[4];
3901 } else if(imat==6) {
3902 fxOverX0Pipe = param[1];
3903 fxTimesRhoPipe = param[0]*param[4];
3904 } else if(imat==7) {
3905 fxOverX0Shield[0] = param[1];
3906 fxTimesRhoShield[0] = param[0]*param[4];
3907 } else if(imat==8) {
3908 fxOverX0Shield[1] = param[1];
3909 fxTimesRhoShield[1] = param[0]*param[4];
3910 }
3911 }
3912 /*
3913 printf("%s\n",material.Data());
3914 printf("%f %f\n",fxOverX0Pipe,fxTimesRhoPipe);
3915 printf("%f %f\n",fxOverX0Shield[0],fxTimesRhoShield[0]);
3916 printf("%f %f\n",fxOverX0Shield[1],fxTimesRhoShield[1]);
3917 printf("%f %f\n",fxOverX0Layer[0],fxTimesRhoLayer[0]);
3918 printf("%f %f\n",fxOverX0Layer[1],fxTimesRhoLayer[1]);
3919 printf("%f %f\n",fxOverX0Layer[2],fxTimesRhoLayer[2]);
3920 printf("%f %f\n",fxOverX0Layer[3],fxTimesRhoLayer[3]);
3921 printf("%f %f\n",fxOverX0Layer[4],fxTimesRhoLayer[4]);
3922 printf("%f %f\n",fxOverX0Layer[5],fxTimesRhoLayer[5]);
3923 */
3924 return;
3925}
3926//------------------------------------------------------------------------
3927Int_t AliITStrackerMI::CorrectForPipeMaterial(AliITStrackMI *t,
3928 TString direction) {
3929 //-------------------------------------------------------------------
3930 // Propagate beyond beam pipe and correct for material
3931 // (material budget in different ways according to fUseTGeo value)
7131593b 3932 // Add time if going outward (PropagateTo or PropagateToTGeo)
e50912db 3933 //-------------------------------------------------------------------
3934
3935 // Define budget mode:
3936 // 0: material from AliITSRecoParam (hard coded)
9be1d1c7 3937 // 1: material from TGeo in one step (on the fly)
e50912db 3938 // 2: material from lut
9be1d1c7 3939 // 3: material from TGeo in one step (same for all hypotheses)
e50912db 3940 Int_t mode;
3941 switch(fUseTGeo) {
3942 case 0:
3943 mode=0;
3944 break;
3945 case 1:
3946 mode=1;
3947 break;
3948 case 2:
3949 mode=2;
3950 break;
3951 case 3:
3952 if(fTrackingPhase.Contains("Clusters2Tracks"))
3953 { mode=3; } else { mode=1; }
3954 break;
3955 case 4:
3956 if(fTrackingPhase.Contains("Clusters2Tracks"))
3957 { mode=3; } else { mode=2; }
3958 break;
3959 default:
3960 mode=0;
3961 break;
3962 }
3963 if(fTrackingPhase.Contains("Default")) mode=0;
3964
3965 Int_t index=fCurrentEsdTrack;
3966
3967 Float_t dir = (direction.Contains("inward") ? 1. : -1.);
3968 Double_t rToGo=(dir>0 ? AliITSRecoParam::GetrInsidePipe() : AliITSRecoParam::GetrOutsidePipe());
70e83b26 3969 Double_t xToGo;
3970 if (!t->GetLocalXat(rToGo,xToGo)) return 0;
e50912db 3971
3972 Double_t xOverX0,x0,lengthTimesMeanDensity;
e50912db 3973
3974 switch(mode) {
3975 case 0:
3976 xOverX0 = AliITSRecoParam::GetdPipe();
3977 x0 = AliITSRecoParam::GetX0Be();
3978 lengthTimesMeanDensity = xOverX0*x0;
9be1d1c7 3979 lengthTimesMeanDensity *= dir;
7131593b 3980 if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
e50912db 3981 break;
3982 case 1:
3983 if (!t->PropagateToTGeo(xToGo,1)) return 0;
e50912db 3984 break;
3985 case 2:
3986 if(fxOverX0Pipe<0) BuildMaterialLUT("Pipe");
3987 xOverX0 = fxOverX0Pipe;
3988 lengthTimesMeanDensity = fxTimesRhoPipe;
9be1d1c7 3989 lengthTimesMeanDensity *= dir;
7131593b 3990 if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
e50912db 3991 break;
3992 case 3:
3993 if(!fxOverX0PipeTrks || index<0 || index>=fNtracks) Error("CorrectForPipeMaterial","Incorrect usage of UseTGeo option!\n");
3994 if(fxOverX0PipeTrks[index]<0) {
3995 if (!t->PropagateToTGeo(xToGo,1,xOverX0,lengthTimesMeanDensity)) return 0;
3996 Double_t angle=TMath::Sqrt((1.+t->GetTgl()*t->GetTgl())/
60e55aee 3997 ((1.-t->GetSnp())*(1.+t->GetSnp())));
e50912db 3998 fxOverX0PipeTrks[index] = TMath::Abs(xOverX0)/angle;
3999 fxTimesRhoPipeTrks[index] = TMath::Abs(lengthTimesMeanDensity)/angle;
4000 return 1;
4001 }
4002 xOverX0 = fxOverX0PipeTrks[index];
4003 lengthTimesMeanDensity = fxTimesRhoPipeTrks[index];
9be1d1c7 4004 lengthTimesMeanDensity *= dir;
7131593b 4005 if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
e50912db 4006 break;
4007 }
4008
e50912db 4009 return 1;
4010}
4011//------------------------------------------------------------------------
4012Int_t AliITStrackerMI::CorrectForShieldMaterial(AliITStrackMI *t,
4013 TString shield,
4014 TString direction) {
4015 //-------------------------------------------------------------------
4016 // Propagate beyond SPD or SDD shield and correct for material
4017 // (material budget in different ways according to fUseTGeo value)
7131593b 4018 // Add time if going outward (PropagateTo or PropagateToTGeo)
e50912db 4019 //-------------------------------------------------------------------
4020
4021 // Define budget mode:
4022 // 0: material from AliITSRecoParam (hard coded)
9be1d1c7 4023 // 1: material from TGeo in steps of X cm (on the fly)
4024 // X = AliITSRecoParam::GetStepSizeTGeo()
e50912db 4025 // 2: material from lut
9be1d1c7 4026 // 3: material from TGeo in one step (same for all hypotheses)
e50912db 4027 Int_t mode;
4028 switch(fUseTGeo) {
4029 case 0:
4030 mode=0;
4031 break;
4032 case 1:
4033 mode=1;
4034 break;
4035 case 2:
4036 mode=2;
4037 break;
4038 case 3:
4039 if(fTrackingPhase.Contains("Clusters2Tracks"))
4040 { mode=3; } else { mode=1; }
4041 break;
4042 case 4:
4043 if(fTrackingPhase.Contains("Clusters2Tracks"))
4044 { mode=3; } else { mode=2; }
4045 break;
4046 default:
4047 mode=0;
4048 break;
4049 }
4050 if(fTrackingPhase.Contains("Default")) mode=0;
4051
4052 Float_t dir = (direction.Contains("inward") ? 1. : -1.);
4053 Double_t rToGo;
4054 Int_t shieldindex=0;
4055 if (shield.Contains("SDD")) { // SDDouter
4056 rToGo=(dir>0 ? AliITSRecoParam::GetrInsideShield(1) : AliITSRecoParam::GetrOutsideShield(1));
4057 shieldindex=1;
4058 } else if (shield.Contains("SPD")) { // SPDouter
4059 rToGo=(dir>0 ? AliITSRecoParam::GetrInsideShield(0) : AliITSRecoParam::GetrOutsideShield(0));
4060 shieldindex=0;
4061 } else {
4062 Error("CorrectForShieldMaterial"," Wrong shield name\n");
e50912db 4063 return 0;
4064 }
67178f34 4065
4066 // do nothing if we are already beyond the shield
4067 Double_t rTrack = TMath::Sqrt(t->GetX()*t->GetX()+t->GetY()*t->GetY());
4068 if(dir<0 && rTrack > rToGo) return 1; // going outward
4069 if(dir>0 && rTrack < rToGo) return 1; // going inward
4070
4071
70e83b26 4072 Double_t xToGo;
4073 if (!t->GetLocalXat(rToGo,xToGo)) return 0;
e50912db 4074
4075 Int_t index=2*fCurrentEsdTrack+shieldindex;
4076
4077 Double_t xOverX0,x0,lengthTimesMeanDensity;
9be1d1c7 4078 Int_t nsteps=1;
e50912db 4079
4080 switch(mode) {
4081 case 0:
4082 xOverX0 = AliITSRecoParam::Getdshield(shieldindex);
4083 x0 = AliITSRecoParam::GetX0shield(shieldindex);
4084 lengthTimesMeanDensity = xOverX0*x0;
9be1d1c7 4085 lengthTimesMeanDensity *= dir;
7131593b 4086 if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
e50912db 4087 break;
4088 case 1:
9be1d1c7 4089 nsteps= (Int_t)(TMath::Abs(t->GetX()-xToGo)/AliITSReconstructor::GetRecoParam()->GetStepSizeTGeo())+1;
4090 if (!t->PropagateToTGeo(xToGo,nsteps)) return 0; // cross the material and apply correction
e50912db 4091 break;
4092 case 2:
4093 if(fxOverX0Shield[shieldindex]<0) BuildMaterialLUT("Shields");
4094 xOverX0 = fxOverX0Shield[shieldindex];
4095 lengthTimesMeanDensity = fxTimesRhoShield[shieldindex];
9be1d1c7 4096 lengthTimesMeanDensity *= dir;
7131593b 4097 if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
e50912db 4098 break;
4099 case 3:
4100 if(!fxOverX0ShieldTrks || index<0 || index>=2*fNtracks) Error("CorrectForShieldMaterial","Incorrect usage of UseTGeo option!\n");
4101 if(fxOverX0ShieldTrks[index]<0) {
4102 if (!t->PropagateToTGeo(xToGo,1,xOverX0,lengthTimesMeanDensity)) return 0;
4103 Double_t angle=TMath::Sqrt((1.+t->GetTgl()*t->GetTgl())/
60e55aee 4104 ((1.-t->GetSnp())*(1.+t->GetSnp())));
e50912db 4105 fxOverX0ShieldTrks[index] = TMath::Abs(xOverX0)/angle;
4106 fxTimesRhoShieldTrks[index] = TMath::Abs(lengthTimesMeanDensity)/angle;
4107 return 1;
4108 }
4109 xOverX0 = fxOverX0ShieldTrks[index];
4110 lengthTimesMeanDensity = fxTimesRhoShieldTrks[index];
9be1d1c7 4111 lengthTimesMeanDensity *= dir;
7131593b 4112 if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
e50912db 4113 break;
4114 }
4115
e50912db 4116 return 1;
4117}
4118//------------------------------------------------------------------------
4119Int_t AliITStrackerMI::CorrectForLayerMaterial(AliITStrackMI *t,
4120 Int_t layerindex,
4121 Double_t oldGlobXYZ[3],
4122 TString direction) {
4123 //-------------------------------------------------------------------
4124 // Propagate beyond layer and correct for material
4125 // (material budget in different ways according to fUseTGeo value)
7131593b 4126 // Add time if going outward (PropagateTo or PropagateToTGeo)
e50912db 4127 //-------------------------------------------------------------------
4128
4129 // Define budget mode:
4130 // 0: material from AliITSRecoParam (hard coded)
9be1d1c7 4131 // 1: material from TGeo in stepsof X cm (on the fly)
4132 // X = AliITSRecoParam::GetStepSizeTGeo()
e50912db 4133 // 2: material from lut
9be1d1c7 4134 // 3: material from TGeo in one step (same for all hypotheses)
e50912db 4135 Int_t mode;
4136 switch(fUseTGeo) {
4137 case 0:
4138 mode=0;
4139 break;
4140 case 1:
4141 mode=1;
4142 break;
4143 case 2:
4144 mode=2;
4145 break;
4146 case 3:
4147 if(fTrackingPhase.Contains("Clusters2Tracks"))
4148 { mode=3; } else { mode=1; }
4149 break;
4150 case 4:
4151 if(fTrackingPhase.Contains("Clusters2Tracks"))
4152 { mode=3; } else { mode=2; }
4153 break;
4154 default:
4155 mode=0;
4156 break;
4157 }
4158 if(fTrackingPhase.Contains("Default")) mode=0;
4159
4160 Float_t dir = (direction.Contains("inward") ? 1. : -1.);
4161
4162 Double_t r=fgLayers[layerindex].GetR();
4163 Double_t deltar=(layerindex<2 ? 0.10*r : 0.05*r);
4164
4165 Double_t rToGo=TMath::Sqrt(t->GetX()*t->GetX()+t->GetY()*t->GetY())-deltar*dir;
70e83b26 4166 Double_t xToGo;
4167 if (!t->GetLocalXat(rToGo,xToGo)) return 0;
e50912db 4168
4169 Int_t index=6*fCurrentEsdTrack+layerindex;
4170
e50912db 4171
4172 Double_t xOverX0=0.0,x0=0.0,lengthTimesMeanDensity=0.0;
9be1d1c7 4173 Int_t nsteps=1;
7131593b 4174
4175 // back before material (no correction)
d634c32b 4176 Double_t rOld,xOld;
7131593b 4177 rOld=TMath::Sqrt(oldGlobXYZ[0]*oldGlobXYZ[0]+oldGlobXYZ[1]*oldGlobXYZ[1]);
4178 if (!t->GetLocalXat(rOld,xOld)) return 0;
4179 if (!t->Propagate(xOld)) return 0;
e50912db 4180
4181 switch(mode) {
4182 case 0:
4183 xOverX0 = fgLayers[layerindex].GetThickness(t->GetY(),t->GetZ(),x0);
4184 lengthTimesMeanDensity = xOverX0*x0;
9be1d1c7 4185 lengthTimesMeanDensity *= dir;
7131593b 4186 // Bring the track beyond the material
4187 if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
e50912db 4188 break;
4189 case 1:
9be1d1c7 4190 nsteps = (Int_t)(TMath::Abs(xOld-xToGo)/AliITSReconstructor::GetRecoParam()->GetStepSizeTGeo())+1;
7131593b 4191 if (!t->PropagateToTGeo(xToGo,nsteps)) return 0; // cross the material and apply correction
e50912db 4192 break;
4193 case 2:
4194 if(fxOverX0Layer[layerindex]<0) BuildMaterialLUT("Layers");
4195 xOverX0 = fxOverX0Layer[layerindex];
4196 lengthTimesMeanDensity = fxTimesRhoLayer[layerindex];
9be1d1c7 4197 lengthTimesMeanDensity *= dir;
7131593b 4198 // Bring the track beyond the material
4199 if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
e50912db 4200 break;
4201 case 3:
4202 if(!fxOverX0LayerTrks || index<0 || index>=6*fNtracks) Error("CorrectForLayerMaterial","Incorrect usage of UseTGeo option!\n");
7131593b 4203 if(fxOverX0LayerTrks[index]<0) {
4204 nsteps = (Int_t)(TMath::Abs(xOld-xToGo)/AliITSReconstructor::GetRecoParam()->GetStepSizeTGeo())+1;
4205 if (!t->PropagateToTGeo(xToGo,nsteps,xOverX0,lengthTimesMeanDensity)) return 0;
e50912db 4206 Double_t angle=TMath::Sqrt((1.+t->GetTgl()*t->GetTgl())/
60e55aee 4207 ((1.-t->GetSnp())*(1.+t->GetSnp())));
7131593b 4208 fxOverX0LayerTrks[index] = TMath::Abs(xOverX0)/angle;
4209 fxTimesRhoLayerTrks[index] = TMath::Abs(lengthTimesMeanDensity)/angle;
4210 return 1;
e50912db 4211 }
4212 xOverX0 = fxOverX0LayerTrks[index];
4213 lengthTimesMeanDensity = fxTimesRhoLayerTrks[index];
9be1d1c7 4214 lengthTimesMeanDensity *= dir;
7131593b 4215 if (!t->PropagateTo(xToGo,xOverX0,lengthTimesMeanDensity/xOverX0)) return 0;
e50912db 4216 break;
4217 }
4218
7131593b 4219
e50912db 4220 return 1;
4221}
4222//------------------------------------------------------------------------
4223void AliITStrackerMI::MakeTrksMaterialLUT(Int_t ntracks) {
4224 //-----------------------------------------------------------------
4225 // Initialize LUT for storing material for each prolonged track
4226 //-----------------------------------------------------------------
4227 fxOverX0PipeTrks = new Float_t[ntracks];
4228 fxTimesRhoPipeTrks = new Float_t[ntracks];
4229 fxOverX0ShieldTrks = new Float_t[ntracks*2];
4230 fxTimesRhoShieldTrks = new Float_t[ntracks*2];
4231 fxOverX0LayerTrks = new Float_t[ntracks*6];
4232 fxTimesRhoLayerTrks = new Float_t[ntracks*6];
4233
4234 for(Int_t i=0; i<ntracks; i++) {
4235 fxOverX0PipeTrks[i] = -1.;
4236 fxTimesRhoPipeTrks[i] = -1.;
4237 }
4238 for(Int_t j=0; j<ntracks*2; j++) {
4239 fxOverX0ShieldTrks[j] = -1.;
4240 fxTimesRhoShieldTrks[j] = -1.;
4241 }
4242 for(Int_t k=0; k<ntracks*6; k++) {
4243 fxOverX0LayerTrks[k] = -1.;
4244 fxTimesRhoLayerTrks[k] = -1.;
4245 }
4246
4247 fNtracks = ntracks;
4248
4249 return;
4250}
4251//------------------------------------------------------------------------
4252void AliITStrackerMI::DeleteTrksMaterialLUT() {
4253 //-----------------------------------------------------------------
4254 // Delete LUT for storing material for each prolonged track
4255 //-----------------------------------------------------------------
4256 if(fxOverX0PipeTrks) {
4257 delete [] fxOverX0PipeTrks; fxOverX0PipeTrks = 0;
4258 }
4259 if(fxOverX0ShieldTrks) {
4260 delete [] fxOverX0ShieldTrks; fxOverX0ShieldTrks = 0;
4261 }
4262
4263 if(fxOverX0LayerTrks) {
4264 delete [] fxOverX0LayerTrks; fxOverX0LayerTrks = 0;
4265 }
4266 if(fxTimesRhoPipeTrks) {
4267 delete [] fxTimesRhoPipeTrks; fxTimesRhoPipeTrks = 0;
4268 }
4269 if(fxTimesRhoShieldTrks) {
4270 delete [] fxTimesRhoShieldTrks; fxTimesRhoShieldTrks = 0;
4271 }
4272 if(fxTimesRhoLayerTrks) {
4273 delete [] fxTimesRhoLayerTrks; fxTimesRhoLayerTrks = 0;
4274 }
4275 return;
4276}
4277//------------------------------------------------------------------------
4fa7f7d1 4278void AliITStrackerMI::SetForceSkippingOfLayer() {
4279 //-----------------------------------------------------------------
4280 // Check if we are forced to skip layers
4281 // either we set to skip them in RecoParam
4282 // or they were off during data-taking
4283 //-----------------------------------------------------------------
4284
4285 const AliEventInfo *eventInfo = GetEventInfo();
6262dd3d 4286
4fa7f7d1 4287 for(Int_t l=0; l<AliITSgeomTGeo::kNLayers; l++) {
4288 fForceSkippingOfLayer[l] = 0;
4289 // check reco param
4290 if(AliITSReconstructor::GetRecoParam()->GetLayersToSkip(l)) fForceSkippingOfLayer[l] = 1;
4291 // check run info
4292
87b4605f 4293 if(eventInfo &&
4294 AliITSReconstructor::GetRecoParam()->GetSkipSubdetsNotInTriggerCluster()) {
4fa7f7d1 4295 AliDebug(2,Form("GetEventInfo->GetTriggerCluster: %s",eventInfo->GetTriggerCluster()));
4296 if(l==0 || l==1) {
4297 if(!strstr(eventInfo->GetTriggerCluster(),"ITSSPD")) fForceSkippingOfLayer[l] = 1;
4298 } else if(l==2 || l==3) {
4299 if(!strstr(eventInfo->GetTriggerCluster(),"ITSSDD")) fForceSkippingOfLayer[l] = 1;
4300 } else {
4301 if(!strstr(eventInfo->GetTriggerCluster(),"ITSSSD")) fForceSkippingOfLayer[l] = 1;
4302 }
4303 }
4304 }
4305 return;
4306}
4307//------------------------------------------------------------------------
a70ed6ad 4308Int_t AliITStrackerMI::CheckSkipLayer(const AliITStrackMI *track,
6518a6c5 4309 Int_t ilayer,Int_t idet) const {
2755f080 4310 //-----------------------------------------------------------------
4311 // This method is used to decide whether to allow a prolongation
4312 // without clusters, because we want to skip the layer.
4313 // In this case the return value is > 0:
4314 // return 1: the user requested to skip a layer
371164ec 4315 // return 2: track outside z acceptance
2755f080 4316 //-----------------------------------------------------------------
e43c066c 4317
4fa7f7d1 4318 if (ForceSkippingOfLayer(ilayer)) return 1;
51ad6848 4319
371164ec 4320 Int_t innerLayCanSkip=0; // was 2, changed on 05.11.2009
4321
4322 if (idet<0 && // out in z
4323 ilayer>innerLayCanSkip &&
4324 AliITSReconstructor::GetRecoParam()->GetExtendedEtaAcceptance()) {
2755f080 4325 // check if track will cross SPD outer layer
4326 Double_t phiAtSPD2,zAtSPD2;
6518a6c5 4327 if (track->GetPhiZat(fgLayers[1].GetR(),phiAtSPD2,zAtSPD2)) {
2755f080 4328 if (TMath::Abs(zAtSPD2)<2.*AliITSRecoParam::GetSPDdetzlength()) return 2;
4329 }
371164ec 4330 return 2; // always allow skipping, changed on 05.11.2009
2755f080 4331 }
51ad6848 4332
2755f080 4333 return 0;
4334}
4335//------------------------------------------------------------------------
23197852 4336Int_t AliITStrackerMI::CheckDeadZone(AliITStrackMI *track,
ae00569a 4337 Int_t ilayer,Int_t idet,
1c97ce2f 4338 Double_t dz,Double_t dy,
23197852 4339 Bool_t noClusters) const {
6518a6c5 4340 //-----------------------------------------------------------------
4341 // This method is used to decide whether to allow a prolongation
ae00569a 4342 // without clusters, because there is a dead zone in the road.
6518a6c5 4343 // In this case the return value is > 0:
4344 // return 1: dead zone at z=0,+-7cm in SPD
23197852 4345 // return 2: all road is "bad" (dead or noisy) from the OCDB
f8720bda 4346 // return 3: at least a chip is "bad" (dead or noisy) from the OCDB
4347 // return 4: at least a single channel is "bad" (dead or noisy) from the OCDB
6518a6c5 4348 //-----------------------------------------------------------------
4349
4350 // check dead zones at z=0,+-7cm in the SPD
4351 if (ilayer<2 && !AliITSReconstructor::GetRecoParam()->GetAddVirtualClustersInDeadZone()) {
4352 Double_t zmindead[3]={fSPDdetzcentre[0] + 0.5*AliITSRecoParam::GetSPDdetzlength(),
4353 fSPDdetzcentre[1] + 0.5*AliITSRecoParam::GetSPDdetzlength(),
4354 fSPDdetzcentre[2] + 0.5*AliITSRecoParam::GetSPDdetzlength()};
4355 Double_t zmaxdead[3]={fSPDdetzcentre[1] - 0.5*AliITSRecoParam::GetSPDdetzlength(),
4356 fSPDdetzcentre[2] - 0.5*AliITSRecoParam::GetSPDdetzlength(),
4357 fSPDdetzcentre[3] - 0.5*AliITSRecoParam::GetSPDdetzlength()};
4358 for (Int_t i=0; i<3; i++)
4187a601 4359 if (track->GetZ()-dz<zmaxdead[i] && track->GetZ()+dz>zmindead[i]) {
4360 AliDebug(2,Form("crack SPD %d",ilayer));
4361 return 1;
4362 }
6518a6c5 4363 }
4364
23197852 4365 // check bad zones from OCDB
4366 if (!AliITSReconstructor::GetRecoParam()->GetUseBadZonesFromOCDB()) return 0;
ae00569a 4367
23197852 4368 if (idet<0) return 0;
ae00569a 4369
23197852 4370 AliITSdetector &det=fgLayers[ilayer].GetDetector(idet);
4371
23197852 4372 Int_t detType=-1;
4373 Float_t detSizeFactorX=0.0001,detSizeFactorZ=0.0001;
4374 if (ilayer==0 || ilayer==1) { // ---------- SPD
4375 detType = 0;
4376 } else if (ilayer==2 || ilayer==3) { // ---------- SDD
4377 detType = 1;
4378 detSizeFactorX *= 2.;
4379 } else if (ilayer==4 || ilayer==5) { // ---------- SSD
4380 detType = 2;
4381 }
a70ed6ad 4382 AliITSsegmentation *segm = (AliITSsegmentation*)fkDetTypeRec->GetSegmentationModel(detType);
23197852 4383 if (detType==2) segm->SetLayer(ilayer+1);
4384 Float_t detSizeX = detSizeFactorX*segm->Dx();
4385 Float_t detSizeZ = detSizeFactorZ*segm->Dz();
4386
4387 // check if the road overlaps with bad chips
4388 Float_t xloc,zloc;
4187a601 4389 LocalModuleCoord(ilayer,idet,track,xloc,zloc);
1c97ce2f 4390 Float_t zlocmin = zloc-dz;
4391 Float_t zlocmax = zloc+dz;
4392 Float_t xlocmin = xloc-dy;
4393 Float_t xlocmax = xloc+dy;
23197852 4394 Int_t chipsInRoad[100];
4395
4187a601 4396 // check if road goes out of detector
4397 Bool_t touchNeighbourDet=kFALSE;
6262dd3d 4398 if (TMath::Abs(xlocmin)>0.5*detSizeX) {xlocmin=-0.4999*detSizeX; touchNeighbourDet=kTRUE;}
4399 if (TMath::Abs(xlocmax)>0.5*detSizeX) {xlocmax=+0.4999*detSizeX; touchNeighbourDet=kTRUE;}
4400 if (TMath::Abs(zlocmin)>0.5*detSizeZ) {zlocmin=-0.4999*detSizeZ; touchNeighbourDet=kTRUE;}
4401 if (TMath::Abs(zlocmax)>0.5*detSizeZ) {zlocmax=+0.4999*detSizeZ; touchNeighbourDet=kTRUE;}
4187a601 4402 AliDebug(2,Form("layer %d det %d zmim zmax %f %f xmin xmax %f %f %f %f",ilayer,idet,zlocmin,zlocmax,xlocmin,xlocmax,detSizeZ,detSizeX));
4403
4404 // check if this detector is bad
4405 if (det.IsBad()) {
4406 AliDebug(2,Form("lay %d bad detector %d",ilayer,idet));
4407 if(!touchNeighbourDet) {
4408 return 2; // all detectors in road are bad
4409 } else {
4410 return 3; // at least one is bad
4411 }
4412 }
4413
23197852 4414 Int_t nChipsInRoad = segm->GetChipsInLocalWindow(chipsInRoad,zlocmin,zlocmax,xlocmin,xlocmax);
4187a601 4415 AliDebug(2,Form("lay %d nChipsInRoad %d",ilayer,nChipsInRoad));
23197852 4416 if (!nChipsInRoad) return 0;
4417
4418 Bool_t anyBad=kFALSE,anyGood=kFALSE;
4419 for (Int_t iCh=0; iCh<nChipsInRoad; iCh++) {
4420 if (chipsInRoad[iCh]<0 || chipsInRoad[iCh]>det.GetNChips()-1) continue;
4187a601 4421 AliDebug(2,Form(" chip %d bad %d",chipsInRoad[iCh],(Int_t)det.IsChipBad(chipsInRoad[iCh])));
23197852 4422 if (det.IsChipBad(chipsInRoad[iCh])) {
4423 anyBad=kTRUE;
4424 } else {
4425 anyGood=kTRUE;
4426 }
6518a6c5 4427 }
4428
4187a601 4429 if (!anyGood) {
4430 if(!touchNeighbourDet) {
4431 AliDebug(2,"all bad in road");
4432 return 2; // all chips in road are bad
4433 } else {
4434 return 3; // at least a bad chip in road
4435 }
4436 }
23197852 4437
4187a601 4438 if (anyBad) {
4439 AliDebug(2,"at least a bad in road");
4440 return 3; // at least a bad chip in road
4441 }
23197852 4442
4443
4444 if (!AliITSReconstructor::GetRecoParam()->GetUseSingleBadChannelsFromOCDB()
23197852 4445 || !noClusters) return 0;
4446
4447 // There are no clusters in road: check if there is at least
6a0fdcbd 4448 // a bad SPD pixel or SDD anode or SSD strips on both sides
23197852 4449
4187a601 4450 Int_t idetInITS=idet;
4451 for(Int_t l=0;l<ilayer;l++) idetInITS+=AliITSgeomTGeo::GetNLadders(l+1)*AliITSgeomTGeo::GetNDetectors(l+1);
23197852 4452
4187a601 4453 if (fITSChannelStatus->AnyBadInRoad(idetInITS,zlocmin,zlocmax,xlocmin,xlocmax)) {
4454 AliDebug(2,Form("Bad channel in det %d of layer %d\n",idet,ilayer));
f8720bda 4455 return 4;
4187a601 4456 }
4457 //if (fITSChannelStatus->FractionOfBadInRoad(idet,zlocmin,zlocmax,xlocmin,xlocmax) > AliITSReconstructor::GetRecoParam()->GetMinFractionOfBadInRoad()) return 3;
23197852 4458
6518a6c5 4459 return 0;
4460}
4461//------------------------------------------------------------------------
ae00569a 4462Bool_t AliITStrackerMI::LocalModuleCoord(Int_t ilayer,Int_t idet,
a70ed6ad 4463 const AliITStrackMI *track,
ae00569a 4464 Float_t &xloc,Float_t &zloc) const {
4465 //-----------------------------------------------------------------
4466 // Gives position of track in local module ref. frame
4467 //-----------------------------------------------------------------
4468
4469 xloc=0.;
4470 zloc=0.;
4471
371164ec 4472 if(idet<0) return kTRUE; // track out of z acceptance of layer
ae00569a 4473
4474 Int_t ndet=AliITSgeomTGeo::GetNDetectors(ilayer+1); // layers from 1 to 6
4475
4476 Int_t lad = Int_t(idet/ndet) + 1;
4a66240a 4477
ae00569a 4478 Int_t det = idet - (lad-1)*ndet + 1;
4479
4480 Double_t xyzGlob[3],xyzLoc[3];
4481
1c97ce2f 4482 AliITSdetector &detector = fgLayers[ilayer].GetDetector(idet);
4483 // take into account the misalignment: xyz at real detector plane
d1181f10 4484 if(!track->GetXYZAt(detector.GetRmisal(),GetBz(),xyzGlob)) return kFALSE;
ae00569a 4485
d1181f10 4486 if(!AliITSgeomTGeo::GlobalToLocal(ilayer+1,lad,det,xyzGlob,xyzLoc)) return kFALSE;
ae00569a 4487
4488 xloc = (Float_t)xyzLoc[0];
4489 zloc = (Float_t)xyzLoc[2];
4490
4491 return kTRUE;
4492}
4493//------------------------------------------------------------------------
a70ed6ad 4494Bool_t AliITStrackerMI::IsOKForPlaneEff(const AliITStrackMI* track, const Int_t *clusters, Int_t ilayer) const {
0e91092f 4495//
4496// Method to be optimized further:
4497// Aim: decide whether a track can be used for PlaneEff evaluation
4498// the decision is taken based on the track quality at the layer under study
4499// no information on the clusters on this layer has to be used
4500// The criterium is to reject tracks at boundaries between basic block (e.g. SPD chip)
4501// the cut is done on number of sigmas from the boundaries
4502//
4503// Input: Actual track, layer [0,5] under study
4504// Output: none
4505// Return: kTRUE if this is a good track
7167ae53 4506//
4507// it will apply a pre-selection to obtain good quality tracks.
4508// Here also you will have the possibility to put a control on the
4509// impact point of the track on the basic block, in order to exclude border regions
4510// this will be done by calling a proper method of the AliITSPlaneEff class.
4511//
4512// input: AliITStrackMI* track, ilayer= layer number [0,5]
0e91092f 4513// return: Bool_t -> kTRUE if usable track, kFALSE if not usable.
0ed58a47 4514//
4515 Int_t index[AliITSgeomTGeo::kNLayers];
4516 Int_t k;
4517 for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) index[k]=-1;
4518 //
4519 for (k=0; k<AliITSgeomTGeo::GetNLayers(); k++) {
4520 index[k]=clusters[k];
4521 }
4522
0e91092f 4523 if(!fPlaneEff)
a31a139f 4524 {AliWarning("IsOKForPlaneEff: null pointer to AliITSPlaneEff"); return kFALSE;}
8a32c4b5 4525 AliITSlayer &layer=fgLayers[ilayer];
4526 Double_t r=layer.GetR();
8a32c4b5 4527 AliITStrackMI tmp(*track);
4528
0ed58a47 4529// require a minimal number of cluster in other layers and eventually clusters in closest layers
4530 Int_t ncl=0;
4531 for(Int_t lay=AliITSgeomTGeo::kNLayers-1;lay>ilayer;lay--) {
4532 AliDebug(2,Form("trak=%d lay=%d ; index=%d ESD label= %d",tmp.GetLabel(),lay,
4533 tmp.GetClIndex(lay),((AliESDtrack*)tmp.GetESDtrack())->GetLabel())) ;
9fd412a8 4534 if (tmp.GetClIndex(lay)>=0) ncl++;
0ed58a47 4535 }
4536 Bool_t nextout = kFALSE;
4537 if(ilayer==AliITSgeomTGeo::kNLayers-1) nextout=kTRUE; // you are already on the outermost layer
9fd412a8 4538 else nextout = ((tmp.GetClIndex(ilayer+1)>=0)? kTRUE : kFALSE );
0ed58a47 4539 Bool_t nextin = kFALSE;
4540 if(ilayer==0) nextin=kTRUE; // you are already on the innermost layer
4541 else nextin = ((index[ilayer-1]>=0)? kTRUE : kFALSE );
4542 if(ncl<AliITSgeomTGeo::kNLayers-(ilayer+1)-AliITSReconstructor::GetRecoParam()->GetMaxMissingClustersPlaneEff())
4543 return kFALSE;
4544 if(AliITSReconstructor::GetRecoParam()->GetRequireClusterInOuterLayerPlaneEff() && !nextout) return kFALSE;
4545 if(AliITSReconstructor::GetRecoParam()->GetRequireClusterInInnerLayerPlaneEff() && !nextin) return kFALSE;
4546 if(tmp.Pt() < AliITSReconstructor::GetRecoParam()->GetMinPtPlaneEff()) return kFALSE;
4547 // if(AliITSReconstructor::GetRecoParam()->GetOnlyConstraintPlaneEff() && !tmp.GetConstrain()) return kFALSE;
4548
8a32c4b5 4549// detector number
4550 Double_t phi,z;
4551 if (!tmp.GetPhiZat(r,phi,z)) return kFALSE;
4552 Int_t idet=layer.FindDetectorIndex(phi,z);
4553 if(idet<0) { AliInfo(Form("cannot find detector"));
4554 return kFALSE;}
4555
4556 // here check if it has good Chi Square.
4557
4558 //propagate to the intersection with the detector plane
4559 const AliITSdetector &det=layer.GetDetector(idet);
4560 if (!tmp.Propagate(det.GetPhi(),det.GetR())) return kFALSE;
4561
4562 Float_t locx; //
4563 Float_t locz; //
0e91092f 4564 if(!LocalModuleCoord(ilayer,idet,&tmp,locx,locz)) return kFALSE;
8a32c4b5 4565 UInt_t key=fPlaneEff->GetKeyFromDetLocCoord(ilayer,idet,locx,locz);
4566 if(key>fPlaneEff->Nblock()) return kFALSE;
4567 Float_t blockXmn,blockXmx,blockZmn,blockZmx;
4568 if (!fPlaneEff->GetBlockBoundaries(key,blockXmn,blockXmx,blockZmn,blockZmx)) return kFALSE;
8a32c4b5 4569 //***************
0e91092f 4570 // DEFINITION OF SEARCH ROAD FOR accepting a track
8a32c4b5 4571 //
4572 //For the time being they are hard-wired, later on from AliITSRecoParam
0e91092f 4573 // Double_t nsigx=AliITSRecoParam::GetNSigXFarFromBoundary();
4574 // Double_t nsigz=AliITSRecoParam::GetNSigZFarFromBoundary();
4575 Double_t nsigz=4;
4576 Double_t nsigx=4;
4577 Double_t dx=nsigx*TMath::Sqrt(tmp.GetSigmaY2()); // those are precisions in the tracking reference system
4578 Double_t dz=nsigz*TMath::Sqrt(tmp.GetSigmaZ2()); // Use it also for the module reference system, as it is
4579 // done for RecPoints
8a32c4b5 4580
1c97ce2f 4581 // exclude tracks at boundary between detectors
0e91092f 4582 //Double_t boundaryWidth=AliITSRecoParam::GetBoundaryWidthPlaneEff();
8a32c4b5 4583 Double_t boundaryWidth=0; // for the time being hard-wired, later on from AliITSRecoParam
a31a139f 4584 AliDebug(2,Form("Tracking: track impact x=%f, y=%f, z=%f",tmp.GetX(), tmp.GetY(), tmp.GetZ()));
0e91092f 4585 AliDebug(2,Form("Local: track impact x=%f, z=%f",locx,locz));
4586 AliDebug(2,Form("Search Road. Tracking: dy=%f , dz=%f",dx,dz));
8a32c4b5 4587
0e91092f 4588 if ( (locx-dx < blockXmn+boundaryWidth) ||
4589 (locx+dx > blockXmx-boundaryWidth) ||
4590 (locz-dz < blockZmn+boundaryWidth) ||
4591 (locz+dz > blockZmx-boundaryWidth) ) return kFALSE;
8a32c4b5 4592 return kTRUE;
7167ae53 4593}
4594//------------------------------------------------------------------------
a70ed6ad 4595void AliITStrackerMI::UseTrackForPlaneEff(const AliITStrackMI* track, Int_t ilayer) {
7167ae53 4596//
4597// This Method has to be optimized! For the time-being it uses the same criteria
4598// as those used in the search of extra clusters for overlapping modules.
4599//
4600// Method Purpose: estabilish whether a track has produced a recpoint or not
4601// in the layer under study (For Plane efficiency)
4602//
4603// inputs: AliITStrackMI* track (pointer to a usable track)
4604// outputs: none
4605// side effects: update (by 1 count) the Plane Efficiency statistics of the basic block
4606// traversed by this very track. In details:
4607// - if a cluster can be associated to the track then call
4608// AliITSPlaneEff::UpDatePlaneEff(key,kTRUE);
4609// - if not, the AliITSPlaneEff::UpDatePlaneEff(key,kFALSE) is called
4610//
a31a139f 4611 if(!fPlaneEff)
4612 {AliWarning("UseTrackForPlaneEff: null pointer to AliITSPlaneEff"); return;}
7167ae53 4613 AliITSlayer &layer=fgLayers[ilayer];
4614 Double_t r=layer.GetR();
7167ae53 4615 AliITStrackMI tmp(*track);
4616
4617// detector number
4618 Double_t phi,z;
4619 if (!tmp.GetPhiZat(r,phi,z)) return;
4620 Int_t idet=layer.FindDetectorIndex(phi,z);
4621
8a32c4b5 4622 if(idet<0) { AliInfo(Form("cannot find detector"));
4623 return;}
7167ae53 4624
7167ae53 4625
0e91092f 4626//propagate to the intersection with the detector plane
7167ae53 4627 const AliITSdetector &det=layer.GetDetector(idet);
4628 if (!tmp.Propagate(det.GetPhi(),det.GetR())) return;
8a32c4b5 4629
1c97ce2f 4630
0e91092f 4631//***************
4632// DEFINITION OF SEARCH ROAD FOR CLUSTERS SELECTION
4633//
4634 Double_t dz=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadZ()*
4635 TMath::Sqrt(tmp.GetSigmaZ2() +
4636 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
4637 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
4638 AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer));
4639 Double_t dy=AliITSReconstructor::GetRecoParam()->GetNSigmaRoadY()*
4640 TMath::Sqrt(tmp.GetSigmaY2() +
4641 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
4642 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
4643 AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer));
4644
4645// road in global (rphi,z) [i.e. in tracking ref. system]
4646 Double_t zmin = tmp.GetZ() - dz;
4647 Double_t zmax = tmp.GetZ() + dz;
4648 Double_t ymin = tmp.GetY() + r*det.GetPhi() - dy;
4649 Double_t ymax = tmp.GetY() + r*det.GetPhi() + dy;
4650
4651// select clusters in road
7167ae53 4652 layer.SelectClusters(zmin,zmax,ymin,ymax);
4653
0e91092f 4654// Define criteria for track-cluster association
7167ae53 4655 Double_t msz = tmp.GetSigmaZ2() +
4656 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
4657 AliITSReconstructor::GetRecoParam()->GetNSigmaZLayerForRoadZ()*
4658 AliITSReconstructor::GetRecoParam()->GetSigmaZ2(ilayer);
4659 Double_t msy = tmp.GetSigmaY2() +
4660 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
4661 AliITSReconstructor::GetRecoParam()->GetNSigmaYLayerForRoadY()*
4662 AliITSReconstructor::GetRecoParam()->GetSigmaY2(ilayer);
8a32c4b5 4663 if (tmp.GetConstrain()) {
7167ae53 4664 msz *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadZC();
4665 msy *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadYC();
8a32c4b5 4666 } else {
4667 msz *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadZNonC();
4668 msy *= AliITSReconstructor::GetRecoParam()->GetNSigma2RoadYNonC();
4669 }
7167ae53 4670 msz = 1./msz; // 1/RoadZ^2
4671 msy = 1./msy; // 1/RoadY^2
0e91092f 4672//
7167ae53 4673
4674 const AliITSRecPoint *cl=0; Int_t clidx=-1, ci=-1;
4675 Int_t idetc=-1;
8a32c4b5 4676 Double_t chi2trkcl=1000.*AliITSReconstructor::GetRecoParam()->GetMaxChi2();
4677 //Double_t tolerance=0.2;
4678 /*while ((cl=layer.GetNextCluster(clidx))!=0) {
7167ae53 4679 idetc = cl->GetDetectorIndex();
4680 if(idet!=idetc) continue;
4681 //Int_t ilay = cl->GetLayer();
4682
4683 if (TMath::Abs(tmp.GetZ() - cl->GetZ()) > tolerance) continue;
4684 if (TMath::Abs(tmp.GetY() - cl->GetY()) > tolerance) continue;
4685
4686 Double_t chi2=tmp.GetPredictedChi2(cl);
8a32c4b5 4687 if (chi2<chi2trkcl) { chi2trkcl=chi2; ci=clidx; }
4688 }*/
4689 Float_t locx; //
4690 Float_t locz; //
0e91092f 4691 if(!LocalModuleCoord(ilayer,idet,&tmp,locx,locz)) return;
7167ae53 4692//
4693 AliDebug(2,Form("ilayer= %d, idet=%d, x= %f, z=%f",ilayer,idet,locx,locz));
4694 UInt_t key=fPlaneEff->GetKeyFromDetLocCoord(ilayer,idet,locx,locz);
4695 if(key>fPlaneEff->Nblock()) return;
4696 Bool_t found=kFALSE;
8a32c4b5 4697 //if (ci>=0) {
1cc5cedc 4698 Double_t chi2;
8a32c4b5 4699 while ((cl=layer.GetNextCluster(clidx))!=0) {
4700 idetc = cl->GetDetectorIndex();
4701 if(idet!=idetc) continue;
4702 // here real control to see whether the cluster can be associated to the track.
4703 // cluster not associated to track
4704 if ( (tmp.GetZ()-cl->GetZ())*(tmp.GetZ()-cl->GetZ())*msz +
4705 (tmp.GetY()-cl->GetY())*(tmp.GetY()-cl->GetY())*msy > 1. ) continue;
4706 // calculate track-clusters chi2
1cc5cedc 4707 chi2 = GetPredictedChi2MI(&tmp,cl,ilayer); // note that this method change track tmp
4708 // in particular, the error associated to the cluster
8a32c4b5 4709 //Double_t chi2 = tmp.GetPredictedChi(cl); // this method does not change track tmp
4710 // chi2 cut
4711 if (chi2 > AliITSReconstructor::GetRecoParam()->GetMaxChi2s(ilayer)) continue;
7167ae53 4712 found=kTRUE;
8a32c4b5 4713 if (chi2<chi2trkcl) { chi2trkcl=chi2; ci=clidx; } // this just to trace which cluster is selected
7167ae53 4714 // track->SetExtraCluster(ilayer,(ilayer<<28)+ci);
4715 // track->SetExtraModule(ilayer,idetExtra);
4716 }
4717 if(!fPlaneEff->UpDatePlaneEff(found,key))
8a32c4b5 4718 AliWarning(Form("UseTrackForPlaneEff: cannot UpDate PlaneEff for key=%d",key));
5fbd4fd6 4719 if(fPlaneEff->GetCreateHistos()&& AliITSReconstructor::GetRecoParam()->GetHistoPlaneEff()) {
1cc5cedc 4720 Float_t tr[4]={99999.,99999.,9999.,9999.}; // initialize to high values
4721 Float_t clu[4]={-99999.,-99999.,9999.,9999.}; // (in some cases GetCov fails)
4722 Int_t cltype[2]={-999,-999};
0e91092f 4723
4724 tr[0]=locx;
4725 tr[1]=locz;
4726 tr[2]=TMath::Sqrt(tmp.GetSigmaY2()); // those are precisions in the tracking reference system
4727 tr[3]=TMath::Sqrt(tmp.GetSigmaZ2()); // Use it also for the module reference system, as it is
4728
3ebe30ad 4729 if (found){
4730 clu[0]=layer.GetCluster(ci)->GetDetLocalX();
4731 clu[1]=layer.GetCluster(ci)->GetDetLocalZ();
4732 cltype[0]=layer.GetCluster(ci)->GetNy();
4733 cltype[1]=layer.GetCluster(ci)->GetNz();
1cc5cedc 4734
4735 // Without the following 6 lines you would retrieve the nominal error of a cluster (e.g. for the SPD:
4736 // X->50/sqrt(12)=14 micron Z->450/sqrt(12)= 120 micron)
4737 // Within AliTrackerMI/AliTrackMI the error on the cluster is associated to the AliITStrackMI (fSigmaY,Z)
4738 // It is computed properly by calling the method
4739 // AliITStrackerMI::GetPredictedChi2MI(AliITStrackMI* track, const AliITSRecPoint *cluster,Int_t layer)
4740 // T
4741 //Double_t x=0.5*(tmp.GetX()+layer.GetCluster(ci)->GetX()); // Take into account the mis-alignment
4742 //if (tmp.PropagateTo(x,0.,0.)) {
4743 chi2=GetPredictedChi2MI(&tmp,layer.GetCluster(ci),ilayer);
4744 AliCluster c(*layer.GetCluster(ci));
4745 c.SetSigmaY2(tmp.GetSigmaY(ilayer)*tmp.GetSigmaY(ilayer));
4746 c.SetSigmaZ2(tmp.GetSigmaZ(ilayer)*tmp.GetSigmaZ(ilayer));
1cc5cedc 4747 //if (layer.GetCluster(ci)->GetGlobalCov(cov)) // by using this, instead, you got nominal cluster errors
0e91092f 4748 clu[2]=TMath::Sqrt(c.GetSigmaY2());
4749 clu[3]=TMath::Sqrt(c.GetSigmaZ2());
1cc5cedc 4750 //}
3ebe30ad 4751 }
4752 fPlaneEff->FillHistos(key,found,tr,clu,cltype);
5fbd4fd6 4753 }
7167ae53 4754return;
4755}
6262dd3d 4756