PWG1/AliRecInfoMaker.cxx

   1 /**************************************************************************
   2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   3  *                                                                        *
   4  * Author: The ALICE Off-line Project.                                    *
   5  * Contributors are mentioned in the code where appropriate.              *
   6  *                                                                        *
   7  * Permission to use, copy, modify and distribute this software and its   *
   8  * documentation strictly for non-commercial purposes is hereby granted   *
   9  * without fee, provided that the above copyright notice appears in all   *
  10  * copies and that both the copyright notice and this permission notice   *
  11  * appear in the supporting documentation. The authors make no claims     *
  12  * about the suitability of this software for any purpose. It is          *
  13  * provided "as is" without express or implied warranty.                  *
  14  **************************************************************************/
  15
  16
  17 ///////////////////////////////////////////////////////////////////////////////
  18 //                                                                           //
  19 //  Time Projection Chamber                                                  //
  20 //  Comparison macro for ESD                                                 //
  21 //  responsible:
  22 //  marian.ivanov@cern.ch                                                    //
  23 //
  24 //
  25
  26 /*
  27 marian.ivanov@cern.ch
  28 Usage:
  29
  30
  31
  32 gSystem->Load("libPWG1.so");
  33 //
  34 AliRecInfoMaker *t2 = new AliRecInfoMaker("genTracks.root","cmpESDTracks.root","galice.root",0,0);
  35 t2->Exec();
  36
  37
  38 TFile f("cmpESDTracks.root");
  39 TTree * tree = (TTree*)f.Get("ESDcmpTracks");
  40
  41 AliTreeDraw comp;
  42 comp.SetTree(tree)
  43
  44
  45
  46 //
  47 //some cuts definition
  48 TCut cprim("cprim","TMath::Sqrt(MC.fVDist[0]**2+MC.fVDist[1]**2)<0.01&&abs(MC.fVDist[2])<0.01")
  49 //TCut cprim("cprim","TMath::Sqrt(MC.fVDist[0]**2+MC.fVDist[1]**2)<0.5&&abs(MC.fVDist[2])<0.5")
  50 //TCut citsin("citsin","TMath::Sqrt(MC.fVDist[0]**2+MC.fVDist[1]**2)<3.9");
  51 TCut citsin("citsin","TMath::Sqrt(MC.fVDist[0]**2+MC.fVDist[1]**2)<5");
  52 TCut csec("csec","TMath::Sqrt(MC.fVDist[0]**2+MC.fVDist[1]**2)>0.5");
  53
  54
  55 TCut crec("crec","fReconstructed==1");
  56 TCut cteta1("cteta1","abs(MC.fParticle.Theta()/3.1415-0.5)<0.25");
  57 TCut cteta05("cteta05","abs(MC.fParticle.Theta()/3.1415-0.5)<0.1");
  58
  59 TCut cpos1("cpos1","abs(MC.fParticle.fVz/sqrt(MC.fParticle.fVx*MC.fParticle.fVx+MC.fParticle.fVy*MC.fParticle.fVy))<1");
  60 TCut csens("csens","abs(sqrt(fVDist[0]**2+fVDist[1]**2)-170)<50");
  61 TCut cmuon("cmuon","abs(MC.fParticle.fPdgCode==-13)");
  62 TCut cchi2("cchi2","fESDtrack.fITSchi2MIP[0]<7.&&fESDtrack.fITSchi2MIP[1]<5.&&fESDtrack.fITSchi2MIP[2]<7.&&fESDtrack.fITSchi2MIP[3]<7.5&&fESDtrack.fITSchi2MIP[4]<6.")
  63
  64
  65 //
  66 //example
  67 comp.T()->SetAlias("radius","TMath::Sqrt(MC.fVDist[0]**2+MC.fVDist[1]**2)");
  68 comp.T()->SetAlias("direction","MC.fParticle.fVx*MC.fParticle.fPx+MC.fParticle.fVy*MC.fParticle.fPy");
  69 comp.T()->SetAlias("decaydir","MC.fTRdecay.fX*MC.fTRdecay.fPx+MC.fTRdecay.fY*MC.fTRdecay.fPy");
  70 comp.T()->SetAlias("theta","MC.fTrackRef.Theta()");
  71 comp.T()->SetAlias("primdca","sqrt(RC.fITStrack.fD[0]**2+RC.fITStrack.fD[1]**2)");
  72 comp.T()->SetAlias("trdchi2","fTRDtrack.fChi2/fTRDtrack.fN");
  73 comp.T()->SetAlias("trdchi2","fTRDtrack.fChi2/fTRDtrack.fN");
  74
  75
  76 TH1F his("his","his",100,0,20);
  77 TH1F hpools("hpools","hpools",100,-7,7);
  78 TH1F hfake("hfake","hfake",1000,0,150);
  79 TProfile profp0("profp0","profp0",20,-0.4,0.9)
  80
  81 comp.DrawXY("fTPCinP0[3]","fTPCDelta[4]/fTPCinP1[3]","fReconstructed==1"+cprim,"1",4,0.2,1.5,-0.06,0.06)
  82 comp.fRes->Draw();
  83 comp.fMean->Draw();
  84
  85 comp.DrawXY("fITSinP0[3]","fITSDelta[4]/fITSinP1[3]","fReconstructed==1&&fITSOn"+cprim,"1",4,0.2,1.5,-0.06,0.06)
  86 comp.fRes->Draw();
  87
  88 comp.Eff("fTPCinP0[3]","fRowsWithDigits>120"+cteta1+cpos1+cprim,"fTPCOn",20,0.2,1.5)
  89 comp.fRes->Draw();
  90
  91 comp.Eff("fTPCinP0[3]","fRowsWithDigits>120"+cteta1+cpos1+cprim,"fTPCOn&&fITSOn&&fESDtrack.fITSFakeRatio<0.1",10,0.2,1.5)
  92 comp.fRes->Draw();
  93 comp.Eff("fTPCinP0[3]","fRowsWithDigits>120"+cteta1+cpos1+cprim,"fTPCOn&&fITSOn&&fESDtrack.fITSFakeRatio>0.1",10,0.2,1.5)
  94 comp.fRes->Draw();
  95
  96 comp.T()->Draw("fESDtrack.fITSsignal/fESDtrack.fTPCsignal","fITSOn&&fTPCOn&&fESDtrack.fITSFakeRatio==0")
  97
  98 TH1F his("his","his",100,0,20);
  99 TH1F hpools("hpools","hpools",100,-7,7);
 100
 101 TH2F * hdedx0 = new TH2F("dEdx0","dEdx0",100, 0,2,200,0,550); hdedx0->SetMarkerColor(1);
 102 TH2F * hdedx1 = new TH2F("dEdx1","dEdx1",100, 0,2,200,0,550); hdedx1->SetMarkerColor(4);
 103 TH2F * hdedx2 = new TH2F("dEdx2","dEdx2",100, 0,2,200,0,550); hdedx2->SetMarkerColor(3);
 104 TH2F * hdedx3 = new TH2F("dEdx3","dEdx3",100, 0,2,200,0,550); hdedx3->SetMarkerColor(2);
 105
 106 comp.T()->Draw("fESDtrack.fITSsignal:MC.fParticle.P()>>dEdx0","fITSOn&&abs(fPdg)==211&&fITStrack.fN==6"+cprim)
 107 comp.T()->Draw("fESDtrack.fITSsignal:MC.fParticle.P()>>dEdx1","fITSOn&&abs(fPdg)==2212&&fITStrack.fN==6"+cprim)
 108 comp.T()->Draw("fESDtrack.fITSsignal:MC.fParticle.P()>>dEdx2","fITSOn&&abs(fPdg)==321&&fITStrack.fN==6"+cprim)
 109 comp.T()->Draw("fESDtrack.fITSsignal:MC.fParticle.P()>>dEdx3","fITSOn&&abs(fPdg)==11&&fITStrack.fN==6"+cprim)
 110
 111
 112 comp.T()->Draw("fESDtrack.fTRDsignal:MC.fParticle.P()>>dEdx0","fTRDOn&&abs(fPdg)==211&&fTRDtrack.fN>40&&fStatus[2]>1")
 113 comp.T()->Draw("fESDtrack.fTRDsignal:MC.fParticle.P()>>dEdx1","fTRDOn&&abs(fPdg)==2212&&fTRDtrack.fN>40&&fStatus[2]>1")
 114 comp.T()->Draw("fESDtrack.fTRDsignal:MC.fParticle.P()>>dEdx2","fTRDOn&&abs(fPdg)==321&&fTRDtrack.fN>40&&fStatus[2]>1")
 115 comp.T()->Draw("fESDtrack.fTRDsignal:MC.fParticle.P()>>dEdx3","fTRDOn&&abs(fPdg)==11&&fTRDtrack.fN>40&&fStatus[2]>1")
 116
 117 comp.T()->Draw("fESDtrack.fTPCsignal:fTPCinP0[4]>>dEdx0","fTPCOn&&abs(fPdg)==211&&fESDtrack.fTPCncls>180&&fESDtrack.fTPCsignal>10"+cteta1);
 118 comp.T()->Draw("fESDtrack.fTPCsignal:fTPCinP0[4]>>dEdx1","fTPCOn&&abs(fPdg)==2212&&fESDtrack.fTPCncls>180&&fESDtrack.fTPCsignal>10"+cteta1);
 119 comp.T()->Draw("fESDtrack.fTPCsignal:fTPCinP0[4]>>dEdx2","fTPCOn&&abs(fPdg)==321&&fESDtrack.fTPCncls>180&&fESDtrack.fTPCsignal>10"+cteta1);
 120 comp.T()->Draw("fESDtrack.fTPCsignal:fTPCinP0[4]>>dEdx3","fTPCOn&&abs(fPdg)==11&&fESDtrack.fTPCncls>180&&fESDtrack.fTPCsignal>10"+cteta1);
 121
 122 hdedx3->SetXTitle("P(GeV/c)");
 123 hdedx3->SetYTitle("dEdx(unit)");
 124 hdedx3->Draw(); hdedx1->Draw("same"); hdedx2->Draw("same"); hdedx0->Draw("same");
 125
 126 comp.DrawXY("fITSinP0[3]","fITSPools[4]","fReconstructed==1&&fPdg==-211&&fITSOn"+cprim,"1",4,0.2,1.0,-8,8)
 127
 128 TProfile prof("prof","prof",10,0.5,5);
 129
 130
 131
 132
 133 */
 134
 135
 136 #include <stdio.h>
 137 #include <string.h>
 138 //ROOT includes
 139 #include "Rtypes.h"
 140 #include "TFile.h"
 141 #include "TTree.h"
 142 #include "TStopwatch.h"
 143 #include "TVector3.h"
 144 //#include "Getline.h"
 145 //
 146 //ALIROOT includes
 147 //
 148 #include "AliRun.h"
 149 #include "AliESDtrack.h"
 150 #include "AliTPCParam.h"
 151 #include "AliTPC.h"
 152 #include "AliTrackReference.h"
 153 #include "AliTPCParamSR.h"
 154 #include "AliTracker.h"
 155 #include "AliESDEvent.h"
 156 #include "AliESD.h"
 157 #include "AliESDfriend.h"
 158 #include "AliESDtrack.h"
 159 #include "AliTPCseed.h"
 160 #include "AliITStrackMI.h"
 161 #include "AliESDVertex.h"
 162 #include "AliExternalTrackParam.h"
 163 #include "AliESDkink.h"
 164 #include "AliESDv0.h"
 165 #include "AliV0.h"
 166 //
 167 #include "AliTreeDraw.h"
 168 #include "AliMCInfo.h"
 169 #include "AliGenKinkInfo.h"
 170 #include "AliGenV0Info.h"
 171
 172
 173 #include "AliESDRecInfo.h"
 174 #include "AliESDRecV0Info.h"
 175 #include "AliESDRecKinkInfo.h"
 176 #include "AliRecInfoMaker.h"
 177
 178
 179
 180 ClassImp(AliRecInfoMaker)
 181
 182
 183
 184
 185 AliTPCParam * AliRecInfoMaker::GetTPCParam(){
 186   //
 187   // create TPC param
 188   //
 189   AliTPCParamSR * par = new AliTPCParamSR;
 190   par->Update();
 191   return par;
 192 }
 193
 194
 195
 196 void  AliRecInfoMaker::MakeAliases(TTree * tree)
 197 {
 198   //
 199   // aliases definition
 200   //
 201   tree->SetAlias("radius","TMath::Sqrt(MC.fVDist[0]**2+MC.fVDist[1]**2)");
 202   tree->SetAlias("direction","MC.fParticle.fVx*MC.fParticle.fPx+MC.fParticle.fVy*MC.fParticle.fPy");
 203   tree->SetAlias("decaydir","MC.fTRdecay.fX*MC.fTRdecay.fPx+MC.fTRdecay.fY*MC.fTRdecay.fPy");
 204   tree->SetAlias("theta","MC.fTrackRef.Theta()");
 205   tree->SetAlias("primdca","sqrt(RC.fITStrack.fD[0]**2+RC.fITStrack.fD[1]**2)");
 206   tree->SetAlias("trdchi2","fTRDtrack.fChi2/fTRDtrack.fN");
 207   tree->SetAlias("trdchi2","fTRDtrack.fChi2/fTRDtrack.fN");
 208
 209   tree->SetAlias("trddedx","(RC.fESDtrack.fTRDsignals[0]+RC.fESDtrack.fTRDsignals[1]+RC.fESDtrack.fTRDsignals[2]+RC.fESDtrack.fTRDsignals[3]+RC.fESDtrack.fTRDsignals[4]+RC.fESDtrack.fTRDsignals[5])/6.");
 210
 211   tree->SetAlias("dtofmc2","fESDtrack.fTrackTime[2]-(10^12*MC.fTOFReferences[0].fTime)");
 212   tree->SetAlias("dtofrc2","(fESDtrack.fTrackTime[2]-fESDtrack.fTOFsignal)");
 213
 214   tree->SetAlias("psum","fESDtrack.fTOFr[4]+fESDtrack.fTOFr[3]+fESDtrack.fTOFr[2]+fESDtrack.fTOFr[1]+fESDtrack.fTOFr[0]");
 215   tree->SetAlias("P0","fESDtrack.fTOFr[0]/psum");
 216   tree->SetAlias("P1","fESDtrack.fTOFr[1]/psum");
 217   tree->SetAlias("P2","fESDtrack.fTOFr[2]/psum");
 218   tree->SetAlias("P3","fESDtrack.fTOFr[3]/psum");
 219   tree->SetAlias("P4","fESDtrack.fTOFr[4]/psum");
 220   tree->SetAlias("MaxP","max(max(max(P0,P1),max(P2,P3)),P4)");
 221 }
 222
 223
 224 ////////////////////////////////////////////////////////////////////////
 225 AliRecInfoMaker::AliRecInfoMaker(const char* fnGenTracks,
 226                    const char* fnCmp,
 227                    const char* fnGalice,
 228                    Int_t nEvents, Int_t firstEvent)
 229 {
 230   // AliRecInfoMaker - connencts the MC information with reconstructed information
 231   // fnGenTracks  - file with MC to be created before using AliGenInfoMaker
 232   // fnCmp        - file name  to be created
 233   // fnGalice     - file with Loaders - usualy galice.root
 234   //
 235   // nEvent       - number of event s to be analyzed
 236   // AliRecInfoMaker *t2 = new AliRecInfoMaker("genTracks.root","cmpESDTracks.root","galice.root",0,0);
 237   //
 238
 239
 240   Reset();
 241   //  fFnGenTracks = fnGenTracks;
 242   //  fFnCmp = fnCmp;
 243   sprintf(fFnGenTracks,"%s",fnGenTracks);
 244   sprintf(fFnCmp,"%s",fnCmp);
 245
 246   fFirstEventNr = firstEvent;
 247   fEventNr = firstEvent;
 248   fNEvents = nEvents;
 249   //
 250   fLoader = AliRunLoader::Open(fnGalice);
 251   if (gAlice){
 252     //delete gAlice->GetRunLoader();
 253     delete gAlice;
 254     gAlice = 0x0;
 255   }
 256   if (fLoader->LoadgAlice()){
 257     cerr<<"Error occured while l"<<endl;
 258   }
 259   Int_t nall = fLoader->GetNumberOfEvents();
 260   if (nEvents==0) {
 261     nEvents =nall;
 262     fNEvents=nall;
 263     fFirstEventNr=0;
 264   }
 265
 266   if (nall<=0){
 267     cerr<<"no events available"<<endl;
 268     fEventNr = 0;
 269     return;
 270   }
 271   if (firstEvent+nEvents>nall) {
 272     fEventNr = nall-firstEvent;
 273     cerr<<"restricted number of events availaible"<<endl;
 274   }
 275   AliMagF * magf = gAlice->Field();
 276   AliTracker::SetFieldMap(magf,0);
 277
 278 }
 279
 280
 281 ////////////////////////////////////////////////////////////////////////
 282 AliRecInfoMaker::~AliRecInfoMaker()
 283 {
 284   //
 285   // Destructor
 286   //
 287   if (fLoader) {
 288     delete fLoader;
 289   }
 290 }
 291
 292 //////////////////////////////////////////////////////////////
 293 Int_t AliRecInfoMaker::SetIO()
 294 {
 295   //
 296   // SetIO  - Create the input trees
 297   //
 298   CreateTreeCmp();
 299   if (!fTreeCmp) return 1;
 300   fParamTPC = GetTPCParam();
 301   //
 302   if (!ConnectGenTree()) {
 303     cerr<<"Cannot connect tree with generated tracks"<<endl;
 304     return 1;
 305   }
 306   return 0;
 307 }
 308
 309 //////////////////////////////////////////////////////////////
 310
 311 Int_t AliRecInfoMaker::SetIO(Int_t eventNr)
 312 {
 313   //
 314   //
 315   // SET INPUT
 316   //
 317   TFile f("AliESDs.root");
 318   //
 319
 320   TTree* tree = (TTree*) f.Get("esdTree");
 321   tree->SetBranchStatus("*",1);
 322   fEvent = new AliESDEvent;
 323
 324   if (tree->GetBranch("ESD")){
 325     //    tree->SetBranchAddress("ESD", &fEvent);
 326     // tree->SetBranchAddress("ESDfriend.",&fESDfriend);
 327     // tree->GetEntry(eventNr);
 328     // fEvent->SetESDfriend(fESDfriend);
 329   }else{
 330     fEvent->ReadFromTree(tree);
 331     fESDfriend = (AliESDfriend*)fEvent->FindListObject("AliESDfriend");
 332     tree->GetEntry(eventNr);
 333     fEvent->SetESDfriend(fESDfriend);
 334   }
 335
 336
 337
 338   if (!fEvent) return 1;
 339
 340   return 0;
 341 }
 342
 343
 344
 345 ////////////////////////////////////////////////////////////////////////
 346 void AliRecInfoMaker::Reset()
 347 {
 348   //
 349   // Reset the class
 350   //
 351   fEventNr = 0;
 352   fNEvents = 0;
 353   fTreeCmp = 0;
 354   fTreeCmpKinks =0;
 355   fTreeCmpV0 =0;
 356   //  fFnCmp = "cmpTracks.root";
 357   fFileGenTracks = 0;
 358   fDebug = 0;
 359   //
 360   fParamTPC = 0;
 361   fEvent =0;
 362 }
 363
 364 ////////////////////////////////////////////////////////////////////////
 365 Int_t AliRecInfoMaker::Exec(Int_t nEvents, Int_t firstEventNr)
 366 {
 367   //
 368   // Exec comparison for subrange of events
 369   //
 370   fNEvents = nEvents;
 371   fFirstEventNr = firstEventNr;
 372   return Exec();
 373 }
 374
 375 ////////////////////////////////////////////////////////////////////////
 376 Int_t AliRecInfoMaker::Exec()
 377 {
 378   //
 379   // Exec comparison
 380   //
 381   TStopwatch timer;
 382   timer.Start();
 383
 384   if (SetIO()==1)
 385     return 1;
 386
 387   fNextTreeGenEntryToRead = 0;
 388   fNextKinkToRead = 0;
 389   fNextV0ToRead   =0;
 390   cerr<<"fFirstEventNr, fNEvents: "<<fFirstEventNr<<" "<<fNEvents<<endl;
 391   for (Int_t eventNr = fFirstEventNr; eventNr < fFirstEventNr+fNEvents;
 392        eventNr++) {
 393     fEventNr = eventNr;
 394     SetIO(fEventNr);
 395     fNParticles = gAlice->GetEvent(fEventNr);
 396
 397     fIndexRecTracks = new Short_t[fNParticles*20];  //write at maximum 4 tracks corresponding to particle
 398     fIndexRecKinks  = new Short_t[fNParticles*20];  //write at maximum 20 tracks corresponding to particle
 399     fIndexRecV0  = new Short_t[fNParticles*20];  //write at maximum 20 tracks corresponding to particle
 400
 401     fFakeRecTracks = new Short_t[fNParticles];
 402     fMultiRecTracks = new Short_t[fNParticles];
 403     fMultiRecKinks = new Short_t[fNParticles];
 404     fMultiRecV0 = new Short_t[fNParticles];
 405
 406     for (Int_t i = 0; i<fNParticles; i++) {
 407       for (Int_t j=0;j<20;j++){
 408         fIndexRecTracks[20*i+j] = -1;
 409         fIndexRecKinks[20*i+j]  = -1;
 410         fIndexRecV0[20*i+j]  = -1;
 411       }
 412       fFakeRecTracks[i] = 0;
 413       fMultiRecTracks[i] = 0;
 414       fMultiRecKinks[i] = 0;
 415       fMultiRecV0[i] = 0;
 416     }
 417
 418     cout<<"Start to process event "<<fEventNr<<endl;
 419     cout<<"\tfNParticles = "<<fNParticles<<endl;
 420     if (fDebug>2) cout<<"\tStart loop over TreeT"<<endl;
 421     if (TreeTLoop()>0) return 1;
 422
 423     if (fDebug>2) cout<<"\tStart loop over tree genTracks"<<endl;
 424     if (TreeGenLoop(eventNr)>0) return 1;
 425     BuildKinkInfo0(eventNr);
 426     //BuildV0Info(eventNr); // no V0 info for a moment
 427     fRecArray->Delete();
 428
 429     if (fDebug>2) cout<<"\tEnd loop over tree genTracks"<<endl;
 430
 431     delete [] fIndexRecTracks;
 432     delete [] fIndexRecKinks;
 433     delete [] fIndexRecV0;
 434     delete [] fFakeRecTracks;
 435     delete [] fMultiRecTracks;
 436     delete [] fMultiRecKinks;
 437     delete [] fMultiRecV0;
 438   }
 439
 440   CloseOutputFile();
 441
 442   cerr<<"Exec finished"<<endl;
 443   timer.Stop();
 444   timer.Print();
 445   return 0;
 446
 447 }
 448 ////////////////////////////////////////////////////////////////////////
 449 Bool_t AliRecInfoMaker::ConnectGenTree()
 450 {
 451 //
 452 // connect all branches from the genTracksTree
 453 // use the same variables as for the new cmp tree, it may work
 454 //
 455   fFileGenTracks = TFile::Open(fFnGenTracks,"READ");
 456   if (!fFileGenTracks) {
 457     cerr<<"Error in ConnectGenTree: cannot open file "<<fFnGenTracks<<endl;
 458     return kFALSE;
 459   }
 460   fTreeGenTracks = (TTree*)fFileGenTracks->Get("genTracksTree");
 461   if (!fTreeGenTracks) {
 462     cerr<<"Error in ConnectGenTree: cannot find genTracksTree in the file "
 463         <<fFnGenTracks<<endl;
 464     return kFALSE;
 465   }
 466   //
 467   fMCInfo = new AliMCInfo;
 468   fTreeGenTracks->SetBranchAddress("MC",&fMCInfo);
 469   //
 470   //
 471   fTreeGenKinks = (TTree*)fFileGenTracks->Get("genKinksTree");
 472   if (!fTreeGenKinks) {
 473     cerr<<"Error in ConnectGenTree: cannot find genTracksTree in the file "
 474         <<fFnGenTracks<<endl;
 475     //return kFALSE;
 476   }
 477   else{
 478     fGenKinkInfo = new AliGenKinkInfo;
 479     fTreeGenKinks->SetBranchAddress("MC",&fGenKinkInfo);
 480   }
 481
 482   fTreeGenV0 = (TTree*)fFileGenTracks->Get("genV0Tree");
 483   if (!fTreeGenV0) {
 484     cerr<<"Error in ConnectGenTree: cannot find genTracksTree in the file "
 485         <<fFnGenTracks<<endl;
 486     //return kFALSE;
 487   }
 488   else{
 489     fGenV0Info = new AliGenV0Info;
 490     fTreeGenV0->SetBranchAddress("MC",&fGenV0Info);
 491   }
 492   //
 493   if (fDebug > 1) {
 494     cout<<"Number of gen. tracks with TR: "<<fTreeGenTracks->GetEntries()<<endl;
 495   }
 496   return kTRUE;
 497 }
 498
 499
 500 ////////////////////////////////////////////////////////////////////////
 501 void AliRecInfoMaker::CreateTreeCmp()
 502 {
 503   //
 504   // Create file and tree with comparison information
 505   //
 506   fFileCmp = TFile::Open(fFnCmp,"RECREATE");
 507   if (!fFileCmp) {
 508     cerr<<"Error in CreateTreeCmp: cannot open file "<<fFnCmp<<endl;
 509     return;
 510   }
 511   //
 512   //
 513   fTreeCmp    = new TTree("ESDcmpTracks","ESDcmpTracks");
 514   fMCInfo = new AliMCInfo;
 515   fRecInfo = new AliESDRecInfo;
 516   AliESDtrack * esdTrack = new AliESDtrack;
 517   //  AliITStrackMI * itsTrack = new AliITStrackMI;
 518   fTreeCmp->Branch("MC","AliMCInfo",&fMCInfo,256000);
 519   fTreeCmp->Branch("RC","AliESDRecInfo",&fRecInfo,256000);
 520   //  fTreeCmp->Branch("ITS","AliITStrackMI",&itsTrack);
 521   delete esdTrack;
 522   //
 523   //
 524   fTreeCmpKinks    = new TTree("ESDcmpKinks","ESDcmpKinks");
 525   fGenKinkInfo     = new AliGenKinkInfo;
 526   fRecKinkInfo     = new AliESDRecKinkInfo;
 527   fTreeCmpKinks->Branch("MC.","AliGenKinkInfo",&fGenKinkInfo,256000);
 528   fTreeCmpKinks->Branch("RC.","AliESDRecKinkInfo",&fRecKinkInfo,256000);
 529   //
 530   //
 531   fTreeCmpV0       = new TTree("ESDcmpV0","ESDcmpV0");
 532   fGenV0Info     = new AliGenV0Info;
 533   fRecV0Info     = new AliESDRecV0Info;
 534   fTreeCmpV0->Branch("MC.","AliGenV0Info",   &fGenV0Info,256000);
 535   fTreeCmpV0->Branch("RC.","AliESDRecV0Info",&fRecV0Info,256000);
 536   //
 537   fTreeCmp->AutoSave();
 538   fTreeCmpKinks->AutoSave();
 539   fTreeCmpV0->AutoSave();
 540 }
 541
 542 ////////////////////////////////////////////////////////////////////////
 543 void AliRecInfoMaker::CloseOutputFile()
 544 {
 545   //
 546   // Close output file
 547   //
 548
 549   if (!fFileCmp) {
 550     cerr<<"File "<<fFnCmp<<" not found as an open file."<<endl;
 551     return;
 552   }
 553   fFileCmp->cd();
 554   fTreeCmp->Write();
 555   delete fTreeCmp;
 556
 557   fFileCmp->Close();
 558   delete fFileCmp;
 559   return;
 560 }
 561 ////////////////////////////////////////////////////////////////////////
 562
 563 TVector3 AliRecInfoMaker::TR2Local(AliTrackReference *trackRef,
 564                             AliTPCParam *paramTPC) {
 565
 566   //
 567   // Transform position to the local coord frame
 568   //
 569
 570   Float_t x[3] = { trackRef->X(),trackRef->Y(),trackRef->Z()};
 571   Int_t index[4];
 572   paramTPC->Transform0to1(x,index);
 573   paramTPC->Transform1to2Ideal(x,index);
 574   return TVector3(x);
 575 }
 576 ////////////////////////////////////////////////////////////////////////
 577
 578 Int_t AliRecInfoMaker::TreeTLoop()
 579 {
 580   //
 581   // loop over all ESD reconstructed tracks and store info in memory
 582   //
 583   // + loop over all reconstructed kinks
 584   TStopwatch  timer;
 585   timer.Start();
 586   //
 587   Int_t nEntries = (Int_t)fEvent->GetNumberOfTracks();
 588   Int_t nKinks = (Int_t) fEvent->GetNumberOfKinks();
 589   Int_t nV0MIs = (Int_t) fEvent->GetNumberOfV0s();
 590   fSignedKinks = new Short_t[nKinks];
 591   fSignedV0    = new Short_t[nV0MIs];
 592   //
 593   // load kinks to the memory
 594   for (Int_t i=0; i<nKinks;i++){
 595     //    AliESDkink * kink =
 596     fEvent->GetKink(i);
 597     fSignedKinks[i]=0;
 598   }
 599   //
 600   for (Int_t i=0; i<nV0MIs;i++){
 601     //AliV0 * v0MI =
 602     (AliV0*)fEvent->GetV0(i);
 603     fSignedV0[i]=0;
 604   }
 605
 606   //
 607   //
 608   AliESDtrack * track=0;
 609   for (Int_t iEntry=0; iEntry<nEntries;iEntry++){
 610     track = (AliESDtrack*)fEvent->GetTrack(iEntry);
 611     //
 612     Int_t label = track->GetLabel();
 613     Int_t absLabel = abs(label);
 614     if (absLabel < fNParticles) {
 615       //      fIndexRecTracks[absLabel] =  iEntry;
 616       if (label < 0) fFakeRecTracks[absLabel]++;
 617       if (fMultiRecTracks[absLabel]>0){
 618         if (fMultiRecTracks[absLabel]<20)
 619           fIndexRecTracks[absLabel*20+fMultiRecTracks[absLabel]] =  iEntry;
 620       }
 621       else
 622         fIndexRecTracks[absLabel*20] =  iEntry;
 623       fMultiRecTracks[absLabel]++;
 624     }
 625   }
 626   // sort reconstructed kinks
 627   //
 628   AliESDkink * kink=0;
 629   for (Int_t iEntry=0; iEntry<nKinks;iEntry++){
 630     kink = (AliESDkink*)fEvent->GetKink(iEntry);
 631     if (!kink) continue;
 632     //
 633     Int_t label0 = TMath::Abs(kink->GetLabel(0));
 634     Int_t label1 = TMath::Abs(kink->GetLabel(1));
 635     Int_t absLabel = TMath::Min(label0,label1);
 636     if (absLabel < fNParticles) {
 637       if (fMultiRecKinks[absLabel]>0){
 638         if (fMultiRecKinks[absLabel]<20)
 639           fIndexRecKinks[absLabel*20+fMultiRecKinks[absLabel]] =  iEntry;
 640       }
 641       else
 642         fIndexRecKinks[absLabel*20] =  iEntry;
 643       fMultiRecKinks[absLabel]++;
 644     }
 645   }
 646   // --sort reconstructed V0
 647   //
 648 //   AliV0 * v0MI=0;
 649 //   for (Int_t iEntry=0; iEntry<nV0MIs;iEntry++){
 650 //     v0MI = (AliV0*)fEvent->GetV0(iEntry);
 651 //     if (!v0MI) continue;
 652 //     //
 653 //     Int_t label0 = TMath::Abs(v0MI->GetLabel(0));
 654 //     Int_t label1 = TMath::Abs(v0MI->GetLabel(1));
 655 //     //
 656 //     for (Int_t i=0;i<2;i++){
 657 //       Int_t absLabel =  TMath::Abs(v0MI->GetLabel(i));
 658 //       if (absLabel < fNParticles) {
 659 //      if (fMultiRecV0[absLabel]>0){
 660 //        if (fMultiRecV0[absLabel]<20)
 661 //          fIndexRecV0[absLabel*20+fMultiRecV0[absLabel]] =  iEntry;
 662 //      }
 663 //      else
 664 //        fIndexRecV0[absLabel*20] =  iEntry;
 665 //      fMultiRecV0[absLabel]++;
 666 //       }
 667 //     }
 668 //   }
 669
 670
 671   printf("Time spended in TreeTLoop\n");
 672   timer.Print();
 673
 674   if (fDebug > 2) cerr<<"end of TreeTLoop"<<endl;
 675   return 0;
 676 }
 677
 678 ////////////////////////////////////////////////////////////////////////
 679 Int_t AliRecInfoMaker::TreeGenLoop(Int_t eventNr)
 680 {
 681 //
 682 // loop over all entries for a given event, find corresponding
 683 // rec. track and store in the fTreeCmp
 684 //
 685   TStopwatch timer;
 686   timer.Start();
 687   Int_t entry = fNextTreeGenEntryToRead;
 688   Double_t nParticlesTR = fTreeGenTracks->GetEntriesFast();
 689   cerr<<"fNParticles, nParticlesTR, fNextTreeGenEntryToRead: "<<fNParticles<<" "
 690       <<nParticlesTR<<" "<<fNextTreeGenEntryToRead<<endl;
 691   TBranch * branch = fTreeCmp->GetBranch("RC");
 692   TBranch * branchF = fTreeCmp->GetBranch("F");
 693
 694   branch->SetAddress(&fRecInfo); // set all pointers
 695   fRecArray = new TObjArray(fNParticles);
 696   AliESDtrack dummytrack;  //
 697   AliESDfriendTrack dummytrackF;  //
 698
 699   while (entry < nParticlesTR) {
 700     fTreeGenTracks->GetEntry(entry);
 701     entry++;
 702     if (eventNr < fMCInfo->fEventNr) continue;
 703     if (eventNr > fMCInfo->fEventNr) continue;;
 704     //
 705     fNextTreeGenEntryToRead = entry-1;
 706     if (fDebug > 2 && fMCInfo->fLabel < 10) {
 707       cerr<<"Fill track with a label "<<fMCInfo->fLabel<<endl;
 708     }
 709     //    if (fMCInfo->fNTPCRef<1) continue; // not TPCref
 710     //
 711     fRecInfo->Reset();
 712     AliESDtrack * track=0;
 713     fRecInfo->fReconstructed =0;
 714     TVector3 local = TR2Local(&(fMCInfo->fTrackRef),fParamTPC);
 715     local.GetXYZ(fRecInfo->fTRLocalCoord);
 716     //
 717     if (fIndexRecTracks[fMCInfo->fLabel*20] >= 0) {
 718       track= (AliESDtrack*)fEvent->GetTrack(fIndexRecTracks[fMCInfo->fLabel*20]);
 719       //
 720       //
 721       // find nearest track if multifound
 722       //Int_t sign = Int_t(track->GetSign()*fMCInfo->fCharge);
 723       //
 724       Int_t status = 0;
 725       if  ((track->GetStatus()&AliESDtrack::kITSrefit)>0) status++;
 726       if  ((track->GetStatus()&AliESDtrack::kTPCrefit)>0) status++;
 727       if  ((track->GetStatus()&AliESDtrack::kTRDrefit)>0) status++;
 728
 729       //
 730       if (fIndexRecTracks[fMCInfo->fLabel*20+1]>0){
 731         //
 732         Double_t p[3];
 733         track->GetInnerPxPyPz(p);
 734         Float_t maxp = p[0]*p[0]+p[1]*p[1]+p[2]*p[2];
 735         //
 736         for (Int_t i=1;i<20;i++){
 737           if (fIndexRecTracks[fMCInfo->fLabel*20+i]>=0){
 738             AliESDtrack * track2 = (AliESDtrack*)fEvent->GetTrack(fIndexRecTracks[fMCInfo->fLabel*20+i]);
 739             if (!track2) continue;
 740             //Int_t sign2 = track->GetSign()*fMCInfo->fCharge; //
 741             //if (sign2<0) continue;
 742             track2->GetInnerPxPyPz(p);
 743             Float_t mom = p[0]*p[0]+p[1]*p[1]+p[2]*p[2];
 744             /*
 745             if (sign<0){
 746               sign = sign2;
 747               track = track2;
 748               maxp = mom;
 749               continue;
 750             }
 751             */
 752             //
 753             Int_t status2 = 0;
 754             if  ((track2->GetStatus()&AliESDtrack::kITSrefit)>0) status2++;
 755             if  ((track2->GetStatus()&AliESDtrack::kTPCrefit)>0) status2++;
 756             if  ((track2->GetStatus()&AliESDtrack::kTRDrefit)>0) status2++;
 757             if (status2<status) continue;
 758             //
 759             if (mom<maxp) continue;
 760             maxp = mom;
 761             track = track2;
 762             //
 763           }
 764         }
 765       }
 766       //
 767       if (track) {
 768         fRecInfo->SetESDtrack(track);
 769       }else{
 770         fRecInfo->SetESDtrack(&dummytrack);
 771       }
 772       //
 773
 774       fRecInfo->fReconstructed = 1;
 775       fRecInfo->fFake     = fFakeRecTracks[fMCInfo->fLabel];
 776       fRecInfo->fMultiple = fMultiRecTracks[fMCInfo->fLabel];
 777       //
 778       fRecInfo->Update(fMCInfo,fParamTPC,kTRUE);
 779     }
 780     else{
 781       fRecInfo->SetESDtrack(&dummytrack);
 782       fRecInfo->Update(fMCInfo,fParamTPC,kFALSE);
 783     }
 784     fRecArray->AddAt(new AliESDRecInfo(*fRecInfo),fMCInfo->fLabel);
 785     fTreeCmp->Fill();
 786   }
 787   fTreeCmp->AutoSave();
 788   printf("Time spended in TreeGenLoop\n");
 789   timer.Print();
 790   if (fDebug > 2) cerr<<"end of TreeGenLoop"<<endl;
 791
 792   return 0;
 793 }
 794
 795
 796
 797 ////////////////////////////////////////////////////////////////////////
 798 ////////////////////////////////////////////////////////////////////////
 799 ////////////////////////////////////////////////////////////////////////
 800 Int_t AliRecInfoMaker::BuildKinkInfo0(Int_t eventNr)
 801 {
 802 //
 803 // loop over all entries for a given event, find corresponding
 804 // rec. track and store in the fTreeCmp
 805 //
 806   TStopwatch timer;
 807   timer.Start();
 808   Int_t entry = fNextKinkToRead;
 809   Double_t nParticlesTR = fTreeGenKinks->GetEntriesFast();
 810   cerr<<"fNParticles, nParticlesTR, fNextKinkToRead: "<<fNParticles<<" "
 811       <<nParticlesTR<<" "<<fNextKinkToRead<<endl;
 812   //
 813   TBranch * branch = fTreeCmpKinks->GetBranch("RC.");
 814   branch->SetAddress(&fRecKinkInfo); // set all pointers
 815
 816   //
 817   while (entry < nParticlesTR) {
 818     fTreeGenKinks->GetEntry(entry);
 819     entry++;
 820     if (eventNr < fGenKinkInfo->GetMinus().fEventNr) continue;
 821     if (eventNr > fGenKinkInfo->GetMinus().fEventNr) continue;;
 822     //
 823     fNextKinkToRead = entry-1;
 824     //
 825     //
 826     AliESDRecInfo*  fRecInfo1 = (AliESDRecInfo*)fRecArray->At(fGenKinkInfo->GetMinus().fLabel);
 827     AliESDRecInfo*  fRecInfo2 = (AliESDRecInfo*)fRecArray->At(fGenKinkInfo->GetPlus().fLabel);
 828     fRecKinkInfo->fT1 = (*fRecInfo1);
 829     fRecKinkInfo->fT2 = (*fRecInfo2);
 830     fRecKinkInfo->fStatus =0;
 831     if (fRecInfo1 && fRecInfo1->fTPCOn) fRecKinkInfo->fStatus+=1;
 832     if (fRecInfo2 && fRecInfo2->fTPCOn) fRecKinkInfo->fStatus+=2;
 833     if (fRecKinkInfo->fStatus==3&&fRecInfo1->fSign!=fRecInfo2->fSign) fRecKinkInfo->fStatus*=-1;
 834
 835     if (fRecKinkInfo->fStatus==3){
 836       fRecKinkInfo->Update();
 837     }
 838     Int_t label =  TMath::Min(fGenKinkInfo->GetMinus().fLabel,fGenKinkInfo->GetPlus().fLabel);
 839     Int_t label2 = TMath::Max(fGenKinkInfo->GetMinus().fLabel,fGenKinkInfo->GetPlus().fLabel);
 840
 841     AliESDkink *kink=0;
 842     fRecKinkInfo->fRecStatus   =0;
 843     fRecKinkInfo->fMultiple    = fMultiRecKinks[label];
 844     fRecKinkInfo->fKinkMultiple=0;
 845     //
 846     if (fMultiRecKinks[label]>0){
 847
 848       //      for (Int_t j=0;j<TMath::Min(fMultiRecKinks[label],100);j++){
 849       for (Int_t j=TMath::Min(fMultiRecKinks[label],Short_t(20))-1;j>=0;j--){
 850         Int_t index = fIndexRecKinks[label*20+j];
 851         //AliESDkink *kink2  = (AliESDkink*)fKinks->At(index);
 852         AliESDkink *kink2  = (AliESDkink*)fEvent->GetKink(index);
 853         if (TMath::Abs(kink2->GetLabel(0))==label &&TMath::Abs(kink2->GetLabel(1))==label2) {
 854           fRecKinkInfo->fKinkMultiple++;
 855           fSignedKinks[index]=1;
 856           Int_t c0=0;
 857           if (kink){
 858             //      if (kink->fTRDOn) c0++;
 859             //if (kink->fITSOn) c0++;
 860             if (kink->GetStatus(2)>0) c0++;
 861             if (kink->GetStatus(0)>0) c0++;
 862           }
 863           Int_t c2=0;
 864           //      if (kink2->fTRDOn) c2++;
 865           //if (kink2->fITSOn) c2++;
 866           if (kink2->GetStatus(2)>0) c2++;
 867           if (kink2->GetStatus(0)>0) c2++;
 868
 869           if (c2<c0) continue;
 870           kink =kink2;
 871         }
 872         if (TMath::Abs(kink2->GetLabel(1))==label &&TMath::Abs(kink2->GetLabel(0))==label2) {
 873           fRecKinkInfo->fKinkMultiple++;
 874           fSignedKinks[index]=1;
 875           Int_t c0=0;
 876           if (kink){
 877             //if (kink->fTRDOn) c0++;
 878             //if (kink->fITSOn) c0++;
 879             if (kink->GetStatus(2)>0) c0++;
 880             if (kink->GetStatus(0)>0) c0++;
 881
 882           }
 883           Int_t c2=0;
 884           //      if (kink2->fTRDOn) c2++;
 885           //if (kink2->fITSOn) c2++;
 886           if (kink2->GetStatus(2)>0) c2++;
 887           if (kink2->GetStatus(0)>0) c2++;
 888
 889           if (c2<c0) continue;
 890           kink =kink2;
 891         }
 892       }
 893     }
 894     if (kink){
 895       fRecKinkInfo->fKink = *kink;
 896       fRecKinkInfo->fRecStatus=1;
 897     }
 898     fTreeCmpKinks->Fill();
 899   }
 900   //  Int_t nkinks = fKinks->GetEntriesFast();
 901   Int_t nkinks = fEvent->GetNumberOfKinks();
 902   for (Int_t i=0;i<nkinks;i++){
 903     if (fSignedKinks[i]==0){
 904       //      AliESDkink *kink  = (AliESDkink*)fKinks->At(i);
 905       AliESDkink *kink  = (AliESDkink*)fEvent->GetKink(i);
 906       if (!kink) continue;
 907       //
 908       fRecKinkInfo->fKink = *kink;
 909       fRecKinkInfo->fRecStatus =-2;
 910       //
 911       AliESDRecInfo*  fRecInfo1 = (AliESDRecInfo*)fRecArray->At(TMath::Abs(kink->GetLabel(0)));
 912       AliESDRecInfo*  fRecInfo2 = (AliESDRecInfo*)fRecArray->At(TMath::Abs(kink->GetLabel(1)));
 913       if (fRecInfo1 && fRecInfo2){
 914         fRecKinkInfo->fT1 = (*fRecInfo1);
 915         fRecKinkInfo->fT2 = (*fRecInfo2);
 916         fRecKinkInfo->fRecStatus =-1;
 917       }
 918       fTreeCmpKinks->Fill();
 919     }
 920   }
 921
 922
 923   fTreeCmpKinks->AutoSave();
 924   printf("Time spended in BuilKinkInfo Loop\n");
 925   timer.Print();
 926   if (fDebug > 2) cerr<<"end of BuildKinkInfo Loop"<<endl;
 927   return 0;
 928 }
 929
 930
 931
 932 ////////////////////////////////////////////////////////////////////////
 933 ////////////////////////////////////////////////////////////////////////
 934 ////////////////////////////////////////////////////////////////////////
 935
 936
 937
 938 Int_t AliRecInfoMaker::BuildV0Info(Int_t eventNr)
 939 {
 940 //
 941 // loop over all entries for a given event, find corresponding
 942 // rec. track and store in the fTreeCmp
 943 //
 944   TStopwatch timer;
 945   timer.Start();
 946   Int_t entry = fNextV0ToRead;
 947   Double_t nParticlesTR = fTreeGenV0->GetEntriesFast();
 948   cerr<<"fNParticles, nParticlesTR, fNextV0ToRead: "<<fNParticles<<" "
 949       <<nParticlesTR<<" "<<fNextV0ToRead<<endl;
 950   //
 951   TBranch * branch = fTreeCmpV0->GetBranch("RC.");
 952   branch->SetAddress(&fRecV0Info); // set all pointers
 953   const AliESDVertex * esdvertex = fEvent->GetVertex();
 954   Float_t vertex[3]= {esdvertex->GetXv(), esdvertex->GetYv(),esdvertex->GetZv()};
 955
 956   //
 957   while (entry < nParticlesTR) {
 958     fTreeGenV0->GetEntry(entry);
 959     entry++;
 960     if (eventNr < fGenV0Info->GetMinus().fEventNr) continue;
 961     if (eventNr > fGenV0Info->GetMinus().fEventNr) continue;;
 962     //
 963     fNextV0ToRead = entry-1;
 964     //
 965     //
 966     AliESDRecInfo*  fRecInfo1 = (AliESDRecInfo*)fRecArray->At(fGenV0Info->GetMinus().fLabel);
 967     AliESDRecInfo*  fRecInfo2 = (AliESDRecInfo*)fRecArray->At(fGenV0Info->GetPlus().fLabel);
 968     if (fGenV0Info->GetMinus().fCharge*fGenV0Info->GetPlus().fCharge>0) continue;  // interactions
 969     if (!fRecInfo1 || !fRecInfo2) continue;
 970     fRecV0Info->fT1 = (*fRecInfo1);
 971     fRecV0Info->fT2 = (*fRecInfo2);
 972     fRecV0Info->fV0Status =0;
 973     if (fRecInfo1 && fRecInfo1->fStatus[1]>0) fRecV0Info->fV0Status+=1;
 974     if (fRecInfo2 && fRecInfo2->fStatus[1]>0) fRecV0Info->fV0Status+=2;
 975
 976     if (fRecV0Info->fV0Status==3&&fRecInfo1->fSign==fRecInfo2->fSign) fRecV0Info->fV0Status*=-1;
 977
 978
 979     if (abs(fRecV0Info->fV0Status)==3){
 980       fRecV0Info->Update(vertex);
 981       {
 982         //
 983         // TPC V0 Info
 984         Double_t x,alpha, param[5],cov[15];
 985         if ( fRecV0Info->fT1.GetESDtrack()->GetInnerParam() && fRecV0Info->fT2.GetESDtrack()->GetInnerParam()){
 986           fRecV0Info->fT1.GetESDtrack()->GetInnerExternalParameters(alpha,x,param);
 987           fRecV0Info->fT1.GetESDtrack()->GetInnerExternalCovariance(cov);
 988           AliExternalTrackParam paramP(x,alpha,param,cov);
 989           //
 990           fRecV0Info->fT2.GetESDtrack()->GetInnerExternalParameters(alpha,x,param);
 991           fRecV0Info->fT2.GetESDtrack()->GetInnerExternalCovariance(cov);
 992           AliExternalTrackParam paramM(x,alpha,param,cov);
 993           //
 994           fRecV0Info->fV0tpc->SetParamN(paramM);
 995           fRecV0Info->fV0tpc->SetParamP(paramP);
 996           Double_t pid1[5],pid2[5];
 997           fRecV0Info->fT1.GetESDtrack()->GetESDpid(pid1);
 998           fRecV0Info->fT1.GetESDtrack()->GetESDpid(pid2);
 999           //
1000           //fRecV0Info->fV0tpc.UpdatePID(pid1,pid2);
1001           fRecV0Info->fV0tpc->Update(vertex);
1002
1003           //
1004           //
1005           fRecV0Info->fT1.GetESDtrack()->GetExternalParameters(x,param);
1006           fRecV0Info->fT1.GetESDtrack()->GetExternalCovariance(cov);
1007           alpha = fRecV0Info->fT1.GetESDtrack()->GetAlpha();
1008           new (&paramP) AliExternalTrackParam(x,alpha,param,cov);
1009           //
1010           fRecV0Info->fT2.GetESDtrack()->GetExternalParameters(x,param);
1011           fRecV0Info->fT2.GetESDtrack()->GetExternalCovariance(cov);
1012           alpha = fRecV0Info->fT2.GetESDtrack()->GetAlpha();
1013           new (&paramM) AliExternalTrackParam(x,alpha,param,cov);
1014           //
1015           fRecV0Info->fV0its->SetParamN(paramM);
1016           fRecV0Info->fV0its->SetParamP(paramP);
1017           //      fRecV0Info->fV0its.UpdatePID(pid1,pid2);
1018           fRecV0Info->fV0its->Update(vertex);
1019         }
1020       }
1021       if (TMath::Abs(fGenV0Info->GetMinus().fPdg)==11 &&TMath::Abs(fGenV0Info->GetPlus().fPdg)==11){
1022         if (fRecV0Info->fDist2>10){
1023           fRecV0Info->Update(vertex);
1024         }
1025         if (fRecV0Info->fDist2>10){
1026           fRecV0Info->Update(vertex);
1027         }
1028       }
1029     }
1030     //
1031     // take the V0 from reconstruction
1032
1033     Int_t label =  TMath::Min(fGenV0Info->GetMinus().fLabel,fGenV0Info->GetPlus().fLabel);
1034     Int_t label2 = TMath::Max(fGenV0Info->GetMinus().fLabel,fGenV0Info->GetPlus().fLabel);
1035     AliV0 *v0MI=0;
1036     fRecV0Info->fRecStatus   =0;
1037     fRecV0Info->fMultiple    = fMultiRecV0[label];
1038     fRecV0Info->fV0Multiple=0;
1039     //
1040     if (fMultiRecV0[label]>0 || fMultiRecV0[label2]>0){
1041
1042       //      for (Int_t j=0;j<TMath::Min(fMultiRecV0s[label],100);j++){
1043      //  for (Int_t j=TMath::Min(fMultiRecV0[label],Short_t(20))-1;j>=0;j--){
1044 //      Int_t index = fIndexRecV0[label*20+j];
1045 //      if (index<0) continue;
1046 //      AliV0 *v0MI2  = (AliV0*)fEvent->GetV0(index);
1047 //      if (TMath::Abs(v0MI2->GetLabel(0))==label &&TMath::Abs(v0MI2->GetLabel(1))==label2) {
1048 //        v0MI =v0MI2;
1049 //        fRecV0Info->fV0Multiple++;
1050 //        fSignedV0[index]=1;
1051 //      }
1052 //      if (TMath::Abs(v0MI2->GetLabel(1))==label &&TMath::Abs(v0MI2->GetLabel(0))==label2) {
1053 //        v0MI =v0MI2;
1054 //        fRecV0Info->fV0Multiple++;
1055 //        fSignedV0[index]=1;
1056 //      }
1057 //       }
1058     }
1059     if (v0MI){
1060       fRecV0Info->fV0rec = v0MI;
1061       fRecV0Info->fRecStatus=1;
1062     }
1063
1064     fTreeCmpV0->Fill();
1065   }
1066   //
1067   // write fake v0s
1068
1069   Int_t nV0MIs = fEvent->GetNumberOfV0s();
1070   for (Int_t i=0;i<nV0MIs;i++){
1071     if (fSignedV0[i]==0){
1072       AliV0 *v0MI  = (AliV0*)fEvent->GetV0(i);
1073       if (!v0MI) continue;
1074       //
1075       fRecV0Info->fV0rec = v0MI;
1076       fRecV0Info->fV0Status  =-10;
1077       fRecV0Info->fRecStatus =-2;
1078       //
1079  //      AliESDRecInfo*  fRecInfo1 = (AliESDRecInfo*)fRecArray->At(TMath::Abs(v0MI->GetLabel(0)));
1080 //       AliESDRecInfo*  fRecInfo2 = (AliESDRecInfo*)fRecArray->At(TMath::Abs(v0MI->GetLabel(1)));
1081 //       if (fRecInfo1 && fRecInfo2){
1082 //      fRecV0Info->fT1 = (*fRecInfo1);
1083 //      fRecV0Info->fT2 = (*fRecInfo2);
1084 //      fRecV0Info->fRecStatus =-1;
1085 //       }
1086       fRecV0Info->Update(vertex);
1087       fTreeCmpV0->Fill();
1088     }
1089   }
1090
1091
1092
1093   fTreeCmpV0->AutoSave();
1094   printf("Time spended in BuilV0Info Loop\n");
1095   timer.Print();
1096   if (fDebug > 2) cerr<<"end of BuildV0Info Loop"<<endl;
1097   return 0;
1098 }
1099 ////////////////////////////////////////////////////////////////////////
1100 ////////////////////////////////////////////////////////////////////////
1101
1102