ANALYSIS/AliAnalysisTaskESDfilter.cxx

   1 /**************************************************************************\r
   2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *\r
   3  *                                                                        *\r
   4  * Author: The ALICE Off-line Project.                                    *\r
   5  * Contributors are mentioned in the code where appropriate.              *\r
   6  *                                                                        *\r
   7  * Permission to use, copy, modify and distribute this software and its   *\r
   8  * documentation strictly for non-commercial purposes is hereby granted   *\r
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  10  * copies and that both the copyright notice and this permission notice   *\r
  11  * appear in the supporting documentation. The authors make no claims     *\r
  12  * about the suitability of this software for any purpose. It is          *\r
  13  * provided "as is" without express or implied warranty.                  *\r
  14  **************************************************************************/\r
  15 \r
  16 /* $Id: AliAnalysisTaskESDfilter.cxx 24535 2008-03-16 22:43:30Z fca $ */\r
  17  \r
  18 #include <TChain.h>\r
  19 #include <TTree.h>\r
  20 #include <TList.h>\r
  21 #include <TArrayI.h>\r
  22 #include <TRandom.h>\r
  23 #include <TParticle.h>\r
  24 \r
  25 #include "AliAnalysisTaskESDfilter.h"\r
  26 #include "AliAnalysisManager.h"\r
  27 #include "AliESDEvent.h"\r
  28 #include "AliStack.h"\r
  29 #include "AliAODEvent.h"\r
  30 #include "AliMCEvent.h"\r
  31 #include "AliMCEventHandler.h"\r
  32 #include "AliESDInputHandler.h"\r
  33 #include "AliAODHandler.h"\r
  34 #include "AliAODMCParticle.h"\r
  35 #include "AliAnalysisFilter.h"\r
  36 #include "AliESDMuonTrack.h"\r
  37 #include "AliESDVertex.h"\r
  38 #include "AliESDv0.h"\r
  39 #include "AliESDkink.h"\r
  40 #include "AliESDcascade.h"\r
  41 #include "AliESDPmdTrack.h"\r
  42 #include "AliESDCaloCluster.h"\r
  43 #include "AliESDCaloCells.h"\r
  44 #include "AliMultiplicity.h"\r
  45 #include "AliLog.h"\r
  46 \r
  47 ClassImp(AliAnalysisTaskESDfilter)\r
  48 \r
  49 ////////////////////////////////////////////////////////////////////////\r
  50 \r
  51 AliAnalysisTaskESDfilter::AliAnalysisTaskESDfilter():\r
  52     AliAnalysisTaskSE(),\r
  53     fTrackFilter(0x0),\r
  54     fKinkFilter(0x0),\r
  55     fV0Filter(0x0),\r
  56     fCascadeFilter(0x0),\r
  57     fHighPthreshold(0),\r
  58     fPtshape(0x0)\r
  59 {\r
  60   // Default constructor\r
  61 }\r
  62 \r
  63 AliAnalysisTaskESDfilter::AliAnalysisTaskESDfilter(const char* name):\r
  64     AliAnalysisTaskSE(name),\r
  65     fTrackFilter(0x0),\r
  66     fKinkFilter(0x0),\r
  67     fV0Filter(0x0),\r
  68     fCascadeFilter(0x0),\r
  69     fHighPthreshold(0),\r
  70     fPtshape(0x0)\r
  71 {\r
  72   // Constructor\r
  73 }\r
  74 \r
  75 void AliAnalysisTaskESDfilter::UserCreateOutputObjects()\r
  76 {\r
  77 // Create the output container\r
  78     OutputTree()->GetUserInfo()->Add(fTrackFilter);\r
  79 }\r
  80 \r
  81 void AliAnalysisTaskESDfilter::Init()\r
  82 {\r
  83     // Initialization\r
  84     if (fDebug > 1) AliInfo("Init() \n");\r
  85     // Call configuration file\r
  86 }\r
  87 \r
  88 \r
  89 void AliAnalysisTaskESDfilter::UserExec(Option_t */*option*/)\r
  90 {\r
  91 // Execute analysis for current event\r
  92 //\r
  93                                             \r
  94   Long64_t ientry = Entry();\r
  95   if (fDebug > 0) {\r
  96     printf("Filter: Analysing event # %5d\n", (Int_t) ientry);\r
  97     if (fHighPthreshold == 0) AliInfo("detector PID signals are stored in each track");\r
  98     if (!fPtshape) AliInfo("detector PID signals are not stored below the pt threshold");\r
  99   }\r
 100 \r
 101   ConvertESDtoAOD();\r
 102 }\r
 103 \r
 104 void AliAnalysisTaskESDfilter::ConvertESDtoAOD() {\r
 105     // ESD Filter analysis task executed for each event\r
 106 \r
 107     AliESDEvent* esd = dynamic_cast<AliESDEvent*>(InputEvent());\r
 108     AliESD*      old = esd->GetAliESDOld();\r
 109 \r
 110     // Fetch Stack for debuggging if available \r
 111     AliStack *pStack = 0;\r
 112     AliMCEventHandler *mcH = 0;\r
 113     if(MCEvent()){\r
 114       pStack = MCEvent()->Stack();\r
 115       mcH = (AliMCEventHandler*) ((AliAnalysisManager::GetAnalysisManager())->GetMCtruthEventHandler()); \r
 116     }\r
 117     // set arrays and pointers\r
 118     Float_t posF[3];\r
 119     Double_t pos[3];\r
 120     Double_t p[3];\r
 121     Double_t momPos[3]; \r
 122     Double_t momNeg[3];\r
 123     Double_t momBach[3];\r
 124     Double_t momPosAtV0vtx[3];\r
 125     Double_t momNegAtV0vtx[3];\r
 126     Double_t momBachAtCascadeVtx[3];\r
 127     Double_t covVtx[6];\r
 128     Double_t covTr[21];\r
 129     Double_t pid[10];\r
 130 \r
 131     for (Int_t i = 0; i < 6; i++)  covVtx[i] = 0.;\r
 132     for (Int_t i = 0; i < 21; i++) covTr [i] = 0.;\r
 133 \r
 134     \r
 135     // loop over events and fill them\r
 136     \r
 137     // Multiplicity information needed by the header (to be revised!)\r
 138     Int_t nTracks    = esd->GetNumberOfTracks();\r
 139     //    if (fDebug > 0) printf("-------------------Bo: Number of ESD tracks %d \n",nTracks);\r
 140 \r
 141     Int_t nPosTracks = 0;\r
 142 //    for (Int_t iTrack = 0; iTrack < nTracks; ++iTrack) \r
 143 //      if (esd->GetTrack(iTrack)->GetSign()> 0) nPosTracks++;\r
 144     \r
 145     // Update the header\r
 146 \r
 147     AliAODHeader* header = AODEvent()->GetHeader();\r
 148 \r
 149     header->SetRunNumber(esd->GetRunNumber());\r
 150     if (old) {\r
 151         header->SetBunchCrossNumber(0);\r
 152         header->SetOrbitNumber(0);\r
 153         header->SetPeriodNumber(0);\r
 154         header->SetEventType(0);\r
 155         header->SetMuonMagFieldScale(-999.); // FIXME\r
 156         header->SetCentrality(-999.);        // FIXME\r
 157     } else {\r
 158         header->SetBunchCrossNumber(esd->GetBunchCrossNumber());\r
 159         header->SetOrbitNumber(esd->GetOrbitNumber());\r
 160         header->SetPeriodNumber(esd->GetPeriodNumber());\r
 161         header->SetEventType(esd->GetEventType());\r
 162         header->SetCentrality(-999.);        // FIXME\r
 163     }\r
 164     \r
 165     header->SetTriggerMask(esd->GetTriggerMask()); \r
 166     header->SetTriggerCluster(esd->GetTriggerCluster());\r
 167     header->SetMagneticField(esd->GetMagneticField());\r
 168     header->SetMuonMagFieldScale(esd->GetCurrentDip()/6000.);\r
 169     header->SetZDCN1Energy(esd->GetZDCN1Energy());\r
 170     header->SetZDCP1Energy(esd->GetZDCP1Energy());\r
 171     header->SetZDCN2Energy(esd->GetZDCN2Energy());\r
 172     header->SetZDCP2Energy(esd->GetZDCP2Energy());\r
 173     header->SetZDCEMEnergy(esd->GetZDCEMEnergy(0),esd->GetZDCEMEnergy(1));\r
 174     Float_t diamxy[2]={esd->GetDiamondX(),esd->GetDiamondY()};\r
 175     Float_t diamcov[3]; esd->GetDiamondCovXY(diamcov);\r
 176     header->SetDiamond(diamxy,diamcov);\r
 177 //\r
 178 //\r
 179     Int_t nV0s      = esd->GetNumberOfV0s();\r
 180     Int_t nCascades = esd->GetNumberOfCascades();\r
 181     Int_t nKinks    = esd->GetNumberOfKinks();\r
 182     Int_t nVertices = nV0s + nCascades /*V0 wihtin cascade already counted*/+ nKinks + 1 /* = prim. vtx*/;\r
 183     Int_t nJets     = 0;\r
 184     Int_t nCaloClus = esd->GetNumberOfCaloClusters();\r
 185     Int_t nFmdClus  = 0;\r
 186     Int_t nPmdClus  = esd->GetNumberOfPmdTracks();\r
 187     \r
 188     if (fDebug > 0) \r
 189         printf("   NV0=%d  NCASCADES=%d  NKINKS=%d\n", nV0s, nCascades, nKinks);\r
 190        \r
 191     AODEvent()->ResetStd(nTracks, nVertices, nV0s, nCascades, nJets, nCaloClus, nFmdClus, nPmdClus);\r
 192 \r
 193 \r
 194     AliAODTrack   *aodTrack       = 0x0;\r
 195     AliAODPid     *detpid         = 0x0;\r
 196     Double_t      timezero        = 0;   //TO BE FIXED\r
 197     AliAODVertex  *vV0FromCascade = 0x0;\r
 198     AliAODv0      *aodV0          = 0x0;\r
 199     AliAODcascade *aodCascade     = 0x0;\r
 200     \r
 201     // RefArray to store the mapping between esd track number and newly created AOD-Track\r
 202     TRefArray   *aodTrackRefs = NULL;\r
 203     if (nTracks > 0) aodTrackRefs = new TRefArray(nTracks);\r
 204 \r
 205     // RefArray to store a mapping between esd V0 number and newly created AOD-Vertex V0\r
 206     TRefArray   *aodV0VtxRefs = NULL;\r
 207     if (nV0s > 0) aodV0VtxRefs = new TRefArray(nV0s);\r
 208 \r
 209     // RefArray to store the mapping between esd V0 number and newly created AOD-V0\r
 210     TRefArray   *aodV0Refs = NULL;\r
 211     if (nV0s > 0) aodV0Refs = new TRefArray(nV0s);\r
 212 \r
 213     \r
 214 \r
 215 \r
 216 \r
 217     // Array to take into account the tracks already added to the AOD\r
 218     Bool_t * usedTrack = NULL;\r
 219     if (nTracks>0) {\r
 220         usedTrack = new Bool_t[nTracks];\r
 221         for (Int_t iTrack=0; iTrack<nTracks; ++iTrack) usedTrack[iTrack]=kFALSE;\r
 222     }\r
 223     // Array to take into account the V0s already added to the AOD (V0 within cascades)\r
 224     Bool_t * usedV0 = NULL;\r
 225     if (nV0s>0) {\r
 226         usedV0 = new Bool_t[nV0s];\r
 227         for (Int_t iV0=0; iV0<nV0s; ++iV0) usedV0[iV0]=kFALSE;\r
 228     }\r
 229     // Array to take into account the kinks already added to the AOD\r
 230     Bool_t * usedKink = NULL;\r
 231     if (nKinks>0) {\r
 232         usedKink = new Bool_t[nKinks];\r
 233         for (Int_t iKink=0; iKink<nKinks; ++iKink) usedKink[iKink]=kFALSE;\r
 234     }\r
 235     \r
 236     // Access to the AOD container of vertices\r
 237     TClonesArray &vertices = *(AODEvent()->GetVertices());\r
 238     Int_t jVertices=0;\r
 239     \r
 240     // Access to the AOD container of tracks\r
 241     TClonesArray &tracks = *(AODEvent()->GetTracks());\r
 242     Int_t jTracks=0; \r
 243     \r
 244     // Access to the AOD container of Cascades\r
 245     TClonesArray &cascades = *(AODEvent()->GetCascades());\r
 246     Int_t jCascades=0;\r
 247 \r
 248     // Access to the AOD container of V0s\r
 249     TClonesArray &v0s = *(AODEvent()->GetV0s());\r
 250     Int_t jV0s=0;\r
 251     \r
 252     // Add primary vertex. The primary tracks will be defined\r
 253     // after the loops on the composite objects (V0, cascades, kinks)\r
 254     const AliESDVertex *vtx = esd->GetPrimaryVertex();\r
 255     \r
 256     vtx->GetXYZ(pos); // position\r
 257     vtx->GetCovMatrix(covVtx); //covariance matrix\r
 258     \r
 259     AliAODVertex * primary = new(vertices[jVertices++])\r
 260         AliAODVertex(pos, covVtx, vtx->GetChi2toNDF(), NULL, -1, AliAODVertex::kPrimary);\r
 261     primary->SetName(vtx->GetName());\r
 262     primary->SetTitle(vtx->GetTitle());\r
 263 \r
 264     if (fDebug > 0) primary->Print();\r
 265 \r
 266     // Create vertices starting from the most complex objects\r
 267     Double_t chi2 = 0.;\r
 268     \r
 269     // Cascades (Modified by A.Maire - February 2009)\r
 270     for (Int_t nCascade = 0; nCascade < nCascades; ++nCascade) {\r
 271 \r
 272         if (fDebug > 1) \r
 273         printf("\n ******** Cascade number : %d/%d *********\n", nCascade, nCascades);\r
 274 \r
 275         // 0- Preparation\r
 276         //\r
 277         AliESDcascade *esdCascade = esd->GetCascade(nCascade);\r
 278                 Int_t  idxPosFromV0Dghter  = esdCascade->GetPindex();\r
 279                 Int_t  idxNegFromV0Dghter  = esdCascade->GetNindex();\r
 280                 Int_t  idxBachFromCascade  = esdCascade->GetBindex();\r
 281         \r
 282         AliESDtrack  *esdCascadePos  = esd->GetTrack( idxPosFromV0Dghter);\r
 283         AliESDtrack  *esdCascadeNeg  = esd->GetTrack( idxNegFromV0Dghter);\r
 284         AliESDtrack  *esdCascadeBach = esd->GetTrack( idxBachFromCascade);\r
 285 \r
 286         // Identification of the V0 within the esdCascade (via both daughter track indices)\r
 287         AliESDv0 * currentV0   = 0x0;\r
 288         Int_t      idxV0FromCascade = -1;\r
 289         \r
 290         for (Int_t iV0=0; iV0<nV0s; ++iV0) {\r
 291         \r
 292                          currentV0 = esd->GetV0(iV0);\r
 293                 Int_t posCurrentV0 = currentV0->GetPindex();\r
 294                 Int_t negCurrentV0 = currentV0->GetNindex();\r
 295         \r
 296                 if (posCurrentV0==idxPosFromV0Dghter && negCurrentV0==idxNegFromV0Dghter) {\r
 297                 idxV0FromCascade = iV0;\r
 298                 break;\r
 299                 }\r
 300         }\r
 301 \r
 302         if(idxV0FromCascade < 0){\r
 303                 printf("Cascade - no matching for the V0 (index V0 = -1) ! Skip ... \n");\r
 304                 continue;\r
 305         }// a priori, useless check, but safer ... in case of pb with tracks "out of bounds"\r
 306 \r
 307         if (fDebug > 1) \r
 308                 printf("Cascade %d - V0fromCascade ind : %d/%d\n", nCascade, idxV0FromCascade, nV0s);\r
 309 \r
 310         AliESDv0 *esdV0FromCascade   = esd->GetV0(idxV0FromCascade);\r
 311         \r
 312 \r
 313         // 1 - Cascade selection \r
 314         \r
 315         //      AliESDVertex *esdPrimVtx = new AliESDVertex(*(esd->GetPrimaryVertex()));\r
 316         //      TList cascadeObjects;\r
 317         //      cascadeObjects.AddAt(esdV0FromCascade, 0);\r
 318         //      cascadeObjects.AddAt(esdCascadePos,    1);\r
 319         //      cascadeObjects.AddAt(esdCascadeNeg,    2);\r
 320         //      cascadeObjects.AddAt(esdCascade,       3);\r
 321         //      cascadeObjects.AddAt(esdCascadeBach,   4);\r
 322         //      cascadeObjects.AddAt(esdPrimVtx,       5);\r
 323         // \r
 324         //      UInt_t selectCascade = 0;\r
 325         //      if (fCascadeFilter) {\r
 326         //        // selectCascade = fCascadeFilter->IsSelected(&cascadeObjects); \r
 327         //              // FIXME AliESDCascadeCuts to be implemented ...\r
 328         // \r
 329         //              // Here we may encounter a moot point at the V0 level \r
 330         //              // between the cascade selections and the V0 ones :\r
 331         //              // the V0 selected along with the cascade (secondary V0) may \r
 332         //              // usually be removed from the dedicated V0 selections (prim V0) ...\r
 333         //              // -> To be discussed !\r
 334         // \r
 335         //        // this is a little awkward but otherwise the \r
 336         //        // list wants to access the pointer (delete it) \r
 337         //        // again when going out of scope\r
 338         //        delete cascadeObjects.RemoveAt(5); // esdPrimVtx created via copy construct\r
 339         //        esdPrimVtx = 0;\r
 340         //        if (!selectCascade) \r
 341         //          continue;\r
 342         //      }\r
 343         //      else{\r
 344         //        delete cascadeObjects.RemoveAt(5); // esdPrimVtx created via copy construct\r
 345         //        esdPrimVtx = 0;\r
 346         //      }\r
 347 \r
 348         // 2 - Add the cascade vertex\r
 349         \r
 350         esdCascade->GetXYZcascade(pos[0], pos[1], pos[2]);\r
 351         esdCascade->GetPosCovXi(covVtx);\r
 352         chi2 = esdCascade->GetChi2Xi(); \r
 353         \r
 354         AliAODVertex *vCascade = new(vertices[jVertices++]) AliAODVertex( pos,\r
 355                                                                           covVtx,\r
 356                                                                           chi2, // FIXME = Chi2/NDF will be needed\r
 357                                                                           primary,\r
 358                                                                           nCascade, // id\r
 359                                                                           AliAODVertex::kCascade);\r
 360         primary->AddDaughter(vCascade);\r
 361 \r
 362         if (fDebug > 2) {\r
 363                 printf("---- Cascade / Cascade Vertex (AOD) : \n");\r
 364                 vCascade->Print();\r
 365         }\r
 366 \r
 367 \r
 368         // 3 - Add the bachelor track from the cascade\r
 369         \r
 370         if (!usedTrack[idxBachFromCascade]) {\r
 371 \r
 372         esdCascadeBach->GetPxPyPz(momBach);\r
 373         esdCascadeBach->GetXYZ(pos);\r
 374         esdCascadeBach->GetCovarianceXYZPxPyPz(covTr);\r
 375         esdCascadeBach->GetESDpid(pid);\r
 376 \r
 377             usedTrack[idxBachFromCascade] = kTRUE;\r
 378             UInt_t selectInfo = 0;\r
 379             if (fTrackFilter) selectInfo = fTrackFilter->IsSelected(esdCascadeBach);\r
 380             if(mcH)mcH->SelectParticle(esdCascadeBach->GetLabel());\r
 381             aodTrack = new(tracks[jTracks++]) AliAODTrack(esdCascadeBach->GetID(),\r
 382                                                           esdCascadeBach->GetLabel(), \r
 383                                                           momBach, \r
 384                                                           kTRUE,\r
 385                                                           pos,\r
 386                                                           kFALSE, // Why kFALSE for "isDCA" ? FIXME\r
 387                                                           covTr, \r
 388                                                           (Short_t)esdCascadeBach->GetSign(),\r
 389                                                           esdCascadeBach->GetITSClusterMap(), \r
 390                                                           pid,\r
 391                                                           vCascade,\r
 392                                                           kTRUE,  // usedForVtxFit = kFALSE ? FIXME\r
 393                                                           vtx->UsesTrack(esdCascadeBach->GetID()),\r
 394                                                           AliAODTrack::kSecondary,\r
 395                                                           selectInfo);\r
 396             aodTrackRefs->AddAt(aodTrack,idxBachFromCascade);\r
 397            \r
 398             if (esdCascadeBach->GetSign() > 0) nPosTracks++;\r
 399             aodTrack->ConvertAliPIDtoAODPID();\r
 400             aodTrack->SetFlags(esdCascadeBach->GetStatus());\r
 401             SetAODPID(esdCascadeBach,aodTrack,detpid,timezero,esd->GetMagneticField());\r
 402         }\r
 403         else {\r
 404             aodTrack = dynamic_cast<AliAODTrack*>( aodTrackRefs->At(idxBachFromCascade) );\r
 405         }\r
 406 \r
 407         vCascade->AddDaughter(aodTrack);\r
 408 \r
 409         if (fDebug > 4) {\r
 410                 printf("---- Cascade / bach dghter : \n");\r
 411                 aodTrack->Print();\r
 412         }\r
 413         \r
 414 \r
 415         // 4 - Add the V0 from the cascade. \r
 416         // = V0vtx + both pos and neg daughter tracks + the aodV0 itself\r
 417         //\r
 418 \r
 419         if ( !usedV0[idxV0FromCascade] ) {\r
 420         // 4.A - if VO structure hasn't been created yet\r
 421                 \r
 422                 // 4.A.1 - Create the V0 vertex of the cascade\r
 423         \r
 424                 esdV0FromCascade->GetXYZ(pos[0], pos[1], pos[2]);\r
 425                 esdV0FromCascade->GetPosCov(covVtx);\r
 426                 chi2 = esdV0FromCascade->GetChi2V0();  // = chi2/NDF since NDF = 2*2-3 ?\r
 427                         \r
 428                 vV0FromCascade = new(vertices[jVertices++]) AliAODVertex(pos,\r
 429                                                                         covVtx,\r
 430                                                                         chi2,\r
 431                                                                         vCascade,\r
 432                                                                         idxV0FromCascade, //id of ESDv0\r
 433                                                                         AliAODVertex::kV0);\r
 434                 // Note:\r
 435                 //    one V0 can be used by several cascades.\r
 436                 // So, one AOD V0 vtx can have several parent vtx.\r
 437                 // This is not directly allowed by AliAODvertex.\r
 438                 // Setting the parent vtx (here = param "vCascade") doesn't lead to a crash\r
 439                 // but to a problem of consistency within AODEvent.\r
 440                 // -> See below paragraph 4.B, for the proposed treatment of such a case.\r
 441 \r
 442                 // Add the vV0FromCascade to the aodVOVtxRefs\r
 443                 aodV0VtxRefs->AddAt(vV0FromCascade,idxV0FromCascade);\r
 444                 \r
 445                 \r
 446                 // 4.A.2 - Add the positive tracks from the V0\r
 447                 \r
 448                 esdCascadePos->GetPxPyPz(momPos);\r
 449                 esdCascadePos->GetXYZ(pos);\r
 450                 esdCascadePos->GetCovarianceXYZPxPyPz(covTr);\r
 451                 esdCascadePos->GetESDpid(pid);\r
 452                 \r
 453         \r
 454                 if (!usedTrack[idxPosFromV0Dghter]) {\r
 455                 usedTrack[idxPosFromV0Dghter] = kTRUE;\r
 456         \r
 457                 UInt_t selectInfo = 0;\r
 458                 if (fTrackFilter) selectInfo = fTrackFilter->IsSelected(esdCascadePos);\r
 459                 if(mcH) mcH->SelectParticle(esdCascadePos->GetLabel());\r
 460                 aodTrack = new(tracks[jTracks++]) AliAODTrack(  esdCascadePos->GetID(),\r
 461                                                                 esdCascadePos->GetLabel(), \r
 462                                                                 momPos, \r
 463                                                                 kTRUE,\r
 464                                                                 pos,\r
 465                                                                 kFALSE, // Why kFALSE for "isDCA" ? FIXME\r
 466                                                                 covTr, \r
 467                                                                 (Short_t)esdCascadePos->GetSign(),\r
 468                                                                 esdCascadePos->GetITSClusterMap(), \r
 469                                                                 pid,\r
 470                                                                 vV0FromCascade,\r
 471                                                                 kTRUE,  // usedForVtxFit = kFALSE ? FIXME\r
 472                                                                 vtx->UsesTrack(esdCascadePos->GetID()),\r
 473                                                                 AliAODTrack::kSecondary,\r
 474                                                                 selectInfo);\r
 475                 aodTrackRefs->AddAt(aodTrack,idxPosFromV0Dghter);\r
 476                 \r
 477                 if (esdCascadePos->GetSign() > 0) nPosTracks++;\r
 478                 aodTrack->ConvertAliPIDtoAODPID();\r
 479                 aodTrack->SetFlags(esdCascadePos->GetStatus());\r
 480                 SetAODPID(esdCascadePos,aodTrack,detpid,timezero,esd->GetMagneticField());\r
 481                 }\r
 482                 else {\r
 483                         aodTrack = dynamic_cast<AliAODTrack*>(aodTrackRefs->At(idxPosFromV0Dghter));\r
 484                 }\r
 485                 vV0FromCascade->AddDaughter(aodTrack);\r
 486         \r
 487         \r
 488                 // 4.A.3 - Add the negative tracks from the V0\r
 489                 \r
 490                 esdCascadeNeg->GetPxPyPz(momNeg);\r
 491                 esdCascadeNeg->GetXYZ(pos);\r
 492                 esdCascadeNeg->GetCovarianceXYZPxPyPz(covTr);\r
 493                 esdCascadeNeg->GetESDpid(pid);\r
 494                 \r
 495                 \r
 496                 if (!usedTrack[idxNegFromV0Dghter]) {\r
 497                 usedTrack[idxNegFromV0Dghter] = kTRUE;\r
 498         \r
 499                 UInt_t selectInfo = 0;\r
 500                 if (fTrackFilter) selectInfo = fTrackFilter->IsSelected(esdCascadeNeg);\r
 501                 if(mcH)mcH->SelectParticle(esdCascadeNeg->GetLabel());\r
 502                 aodTrack = new(tracks[jTracks++]) AliAODTrack(  esdCascadeNeg->GetID(),\r
 503                                                                 esdCascadeNeg->GetLabel(),\r
 504                                                                 momNeg,\r
 505                                                                 kTRUE,\r
 506                                                                 pos,\r
 507                                                                 kFALSE, // Why kFALSE for "isDCA" ? FIXME\r
 508                                                                 covTr, \r
 509                                                                 (Short_t)esdCascadeNeg->GetSign(),\r
 510                                                                 esdCascadeNeg->GetITSClusterMap(), \r
 511                                                                 pid,\r
 512                                                                 vV0FromCascade,\r
 513                                                                 kTRUE,  // usedForVtxFit = kFALSE ? FIXME\r
 514                                                                 vtx->UsesTrack(esdCascadeNeg->GetID()),\r
 515                                                                 AliAODTrack::kSecondary,\r
 516                                                                 selectInfo);\r
 517                 \r
 518                 aodTrackRefs->AddAt(aodTrack,idxNegFromV0Dghter);\r
 519                 \r
 520                 if (esdCascadeNeg->GetSign() > 0) nPosTracks++;\r
 521                 aodTrack->ConvertAliPIDtoAODPID();\r
 522                 aodTrack->SetFlags(esdCascadeNeg->GetStatus());\r
 523                 SetAODPID(esdCascadeNeg,aodTrack,detpid,timezero,esd->GetMagneticField());\r
 524                 }\r
 525                 else {\r
 526                         aodTrack = dynamic_cast<AliAODTrack*>(aodTrackRefs->At(idxNegFromV0Dghter));\r
 527                 }\r
 528         \r
 529                 vV0FromCascade->AddDaughter(aodTrack);\r
 530         \r
 531                         \r
 532                 // 4.A.4 - Add the V0 from cascade to the V0 array\r
 533 \r
 534                 Double_t  dcaV0Daughters      = esdV0FromCascade->GetDcaV0Daughters();\r
 535                 Double_t  dcaV0ToPrimVertex   = esdV0FromCascade->GetD( esd->GetPrimaryVertex()->GetX(),\r
 536                                                                         esd->GetPrimaryVertex()->GetY(),\r
 537                                                                         esd->GetPrimaryVertex()->GetZ() );\r
 538                 esdV0FromCascade->GetPPxPyPz( momPosAtV0vtx[0],momPosAtV0vtx[1],momPosAtV0vtx[2] ); \r
 539                 esdV0FromCascade->GetNPxPyPz( momNegAtV0vtx[0],momNegAtV0vtx[1],momNegAtV0vtx[2] ); \r
 540         \r
 541                 Double_t dcaDaughterToPrimVertex[2] = { 999., 999.}; // ..[0] = DCA in (x,y) for Pos and ..[1] = Neg\r
 542                 dcaDaughterToPrimVertex[0] = TMath::Abs(esdCascadePos->GetD(    esd->GetPrimaryVertex()->GetX(),\r
 543                                                                                 esd->GetPrimaryVertex()->GetY(),\r
 544                                                                                 esd->GetMagneticField())        );\r
 545                 dcaDaughterToPrimVertex[1] = TMath::Abs(esdCascadeNeg->GetD(    esd->GetPrimaryVertex()->GetX(),\r
 546                                                                                 esd->GetPrimaryVertex()->GetY(),\r
 547                                                                                 esd->GetMagneticField())        );\r
 548                 \r
 549                 aodV0 = new(v0s[jV0s++]) AliAODv0( vV0FromCascade, \r
 550                                                    dcaV0Daughters,\r
 551                                                    dcaV0ToPrimVertex, \r
 552                                                    momPosAtV0vtx, \r
 553                                                    momNegAtV0vtx, \r
 554                                                    dcaDaughterToPrimVertex); \r
 555                 // set the aod v0 on-the-fly status\r
 556                 aodV0->SetOnFlyStatus(esdV0FromCascade->GetOnFlyStatus());\r
 557 \r
 558                 // Add the aodV0 to the aodVORefs\r
 559                 aodV0Refs->AddAt(aodV0,idxV0FromCascade);\r
 560                 \r
 561         usedV0[idxV0FromCascade] = kTRUE;\r
 562 \r
 563         } else { \r
 564         // 4.B - if V0 structure already used\r
 565 \r
 566                 // Note :\r
 567                 //    one V0 can be used by several cascades (frequent in PbPb evts) : \r
 568                 // same V0 which used but attached to different bachelor tracks\r
 569                 // -> aodVORefs and aodV0VtxRefs are needed.\r
 570                 // Goal : avoid a redundancy of the info in "Vertices" and "v0s" clones array.\r
 571         \r
 572                 vV0FromCascade = dynamic_cast<AliAODVertex*>( aodV0VtxRefs->At(idxV0FromCascade) );\r
 573                 aodV0          = dynamic_cast<AliAODv0*>    ( aodV0Refs   ->At(idxV0FromCascade) );\r
 574                  \r
 575                 // - Treatment of the parent for such a "re-used" V0 :\r
 576                 // Insert the cascade that reuses the V0 vertex in the lineage chain\r
 577                 // Before : vV0 -> vCascade1 -> vPrimary\r
 578                 //  - Hyp : cascade2 uses the same V0 as cascade1\r
 579                 //  After :  vV0 -> vCascade2 -> vCascade1 -> vPrimary\r
 580                 \r
 581                 AliAODVertex *vCascadePreviousParent = dynamic_cast<AliAODVertex*> (vV0FromCascade->GetParent());\r
 582                         vV0FromCascade->SetParent(vCascade);\r
 583                         vCascade      ->SetParent(vCascadePreviousParent);\r
 584 \r
 585                 if(fDebug > 2)  \r
 586                         printf("---- Cascade / Lineage insertion\n"\r
 587                                 "Parent of V0 vtx                 = Cascade vtx %p\n"\r
 588                                 "Parent of the cascade vtx        = Cascade vtx %p\n"\r
 589                                 "Parent of the parent cascade vtx = Cascade vtx %p\n", \r
 590                                                 static_cast<void*> (vV0FromCascade->GetParent()),\r
 591                                                 static_cast<void*> (vCascade->GetParent()),\r
 592                                                 static_cast<void*> (vCascadePreviousParent->GetParent()) );\r
 593                 \r
 594         }// end if V0 structure already used\r
 595 \r
 596         if (fDebug > 2) {\r
 597                 printf("---- Cascade / V0 vertex: \n");\r
 598                 vV0FromCascade->Print();\r
 599         }\r
 600 \r
 601         if (fDebug > 4) {\r
 602                 printf("---- Cascade / pos dghter : \n");\r
 603                         aodTrack->Print();\r
 604                 printf("---- Cascade / neg dghter : \n");\r
 605                         aodTrack->Print();\r
 606                 printf("---- Cascade / aodV0 : \n");\r
 607                         aodV0->Print();\r
 608         }\r
 609 \r
 610         // In any case (used V0 or not), add the V0 vertex to the cascade one.\r
 611         vCascade->AddDaughter(vV0FromCascade);  \r
 612         \r
 613                 \r
 614         // 5 - Add the primary track of the cascade (if any)\r
 615 \r
 616 \r
 617         // 6 - Add the cascade to the AOD array of cascades\r
 618 \r
 619         Double_t dcaBachToPrimVertexXY = TMath::Abs(esdCascadeBach->GetD(esd->GetPrimaryVertex()->GetX(),\r
 620                                                                          esd->GetPrimaryVertex()->GetY(),\r
 621                                                                          esd->GetMagneticField())        );\r
 622 \r
 623         esdCascade->GetBPxPyPz(momBachAtCascadeVtx[0], momBachAtCascadeVtx[1], momBachAtCascadeVtx[2]);\r
 624 \r
 625         aodCascade = new(cascades[jCascades++]) AliAODcascade(  vCascade,\r
 626                                                                 esdCascade->Charge(),\r
 627                                                                 esdCascade->GetDcaXiDaughters(),\r
 628                                                                 -999.,\r
 629                 // DCAXiToPrimVtx -> needs to be calculated   ----|\r
 630                 // doesn't exist at ESD level;\r
 631                 // See AODcascade::DcaXiToPrimVertex(Double, Double, Double)\r
 632                                                                 dcaBachToPrimVertexXY,\r
 633                                                                 momBachAtCascadeVtx,\r
 634                                                                 *aodV0);\r
 635         \r
 636         if (fDebug > 3) {\r
 637                 printf("---- Cascade / AOD cascade : \n\n");\r
 638                 aodCascade->PrintXi(primary->GetX(), primary->GetY(), primary->GetZ());\r
 639         }\r
 640 \r
 641     } // end of the loop on cascades\r
 642 \r
 643     cascades.Expand(jCascades);\r
 644 \r
 645 \r
 646     //\r
 647     // V0s\r
 648     //\r
 649     \r
 650     for (Int_t nV0 = 0; nV0 < nV0s; ++nV0) {\r
 651         \r
 652         if (usedV0[nV0]) continue; // skip if already added to the AOD\r
 653         \r
 654         AliESDv0 *v0 = esd->GetV0(nV0);\r
 655         Int_t posFromV0 = v0->GetPindex();\r
 656         Int_t negFromV0 = v0->GetNindex();\r
 657         \r
 658         // V0 selection \r
 659         //\r
 660         AliESDVertex *esdVtx   = new AliESDVertex(*(esd->GetPrimaryVertex()));\r
 661         AliESDtrack  *esdV0Pos = esd->GetTrack(posFromV0);\r
 662         AliESDtrack  *esdV0Neg = esd->GetTrack(negFromV0);\r
 663         TList v0objects;\r
 664         v0objects.AddAt(v0,                      0);\r
 665         v0objects.AddAt(esdV0Pos,                1);\r
 666         v0objects.AddAt(esdV0Neg,                2);\r
 667         v0objects.AddAt(esdVtx,                  3);\r
 668         UInt_t selectV0 = 0;\r
 669         if (fV0Filter) {\r
 670           selectV0 = fV0Filter->IsSelected(&v0objects);\r
 671           // this is a little awkward but otherwise the \r
 672           // list wants to access the pointer (delete it) \r
 673           // again when going out of scope\r
 674           delete v0objects.RemoveAt(3); // esdVtx created via copy construct\r
 675           esdVtx = 0;\r
 676           if (!selectV0) \r
 677             continue;\r
 678         }\r
 679         else{\r
 680           delete v0objects.RemoveAt(3); // esdVtx created via copy construct\r
 681           esdVtx = 0;\r
 682         }\r
 683     \r
 684         v0->GetXYZ(pos[0], pos[1], pos[2]);\r
 685 \r
 686         if (!old) {\r
 687             chi2 = v0->GetChi2V0(); // = chi2/NDF since NDF = 2*2-3\r
 688             v0->GetPosCov(covVtx);\r
 689         } else {\r
 690             chi2 = -999.;\r
 691             for (Int_t i = 0; i < 6; i++)  covVtx[i] = 0.;\r
 692         }\r
 693 \r
 694 \r
 695         AliAODVertex * vV0 = \r
 696           new(vertices[jVertices++]) AliAODVertex(pos,\r
 697                                                   covVtx,\r
 698                                                   chi2,\r
 699                                                   primary,\r
 700                                                   nV0,\r
 701                                                   AliAODVertex::kV0);\r
 702         primary->AddDaughter(vV0);\r
 703         \r
 704 \r
 705         // Add the positive tracks from the V0\r
 706         \r
 707         esdV0Pos->GetPxPyPz(momPos);\r
 708         esdV0Pos->GetXYZ(pos);\r
 709         esdV0Pos->GetCovarianceXYZPxPyPz(covTr);\r
 710         esdV0Pos->GetESDpid(pid);\r
 711         \r
 712         if (!usedTrack[posFromV0]) {\r
 713             usedTrack[posFromV0] = kTRUE;\r
 714             UInt_t selectInfo = 0;\r
 715             if (fTrackFilter) selectInfo = fTrackFilter->IsSelected(esdV0Pos);\r
 716             if(mcH)mcH->SelectParticle(esdV0Pos->GetLabel());\r
 717             aodTrack = new(tracks[jTracks++]) AliAODTrack(esdV0Pos->GetID(),\r
 718                                                           esdV0Pos->GetLabel(), \r
 719                                                           momPos, \r
 720                                                           kTRUE,\r
 721                                                           pos,\r
 722                                                           kFALSE,\r
 723                                                           covTr, \r
 724                                                           (Short_t)esdV0Pos->GetSign(),\r
 725                                                           esdV0Pos->GetITSClusterMap(), \r
 726                                                           pid,\r
 727                                                           vV0,\r
 728                                                           kTRUE,  // check if this is right\r
 729                                                           vtx->UsesTrack(esdV0Pos->GetID()),\r
 730                                                           AliAODTrack::kSecondary,\r
 731                                                           selectInfo);\r
 732             aodTrackRefs->AddAt(aodTrack,posFromV0);\r
 733             //      if (fDebug > 0) printf("-------------------Bo: pos track from original pt %.3f \n",aodTrack->Pt());\r
 734             if (esdV0Pos->GetSign() > 0) nPosTracks++;\r
 735             aodTrack->ConvertAliPIDtoAODPID();\r
 736             aodTrack->SetFlags(esdV0Pos->GetStatus());\r
 737             SetAODPID(esdV0Pos,aodTrack,detpid,timezero,esd->GetMagneticField());\r
 738         }\r
 739         else {\r
 740             aodTrack = dynamic_cast<AliAODTrack*>(aodTrackRefs->At(posFromV0));\r
 741             //      if (fDebug > 0) printf("-------------------Bo pos track from refArray pt %.3f \n",aodTrack->Pt());\r
 742         }\r
 743         vV0->AddDaughter(aodTrack);\r
 744     \r
 745         // Add the negative tracks from the V0\r
 746         \r
 747         esdV0Neg->GetPxPyPz(momNeg);\r
 748         esdV0Neg->GetXYZ(pos);\r
 749         esdV0Neg->GetCovarianceXYZPxPyPz(covTr);\r
 750         esdV0Neg->GetESDpid(pid);\r
 751         \r
 752         if (!usedTrack[negFromV0]) {\r
 753             usedTrack[negFromV0] = kTRUE;\r
 754             UInt_t selectInfo = 0;\r
 755             if (fTrackFilter) selectInfo = fTrackFilter->IsSelected(esdV0Neg);\r
 756             if(mcH)mcH->SelectParticle(esdV0Neg->GetLabel());\r
 757             aodTrack = new(tracks[jTracks++]) AliAODTrack(esdV0Neg->GetID(),\r
 758                                                           esdV0Neg->GetLabel(),\r
 759                                                           momNeg,\r
 760                                                           kTRUE,\r
 761                                                           pos,\r
 762                                                           kFALSE,\r
 763                                                           covTr, \r
 764                                                           (Short_t)esdV0Neg->GetSign(),\r
 765                                                           esdV0Neg->GetITSClusterMap(), \r
 766                                                           pid,\r
 767                                                           vV0,\r
 768                                                           kTRUE,  // check if this is right\r
 769                                                           vtx->UsesTrack(esdV0Neg->GetID()),\r
 770                                                           AliAODTrack::kSecondary,\r
 771                                                           selectInfo);\r
 772             \r
 773             aodTrackRefs->AddAt(aodTrack,negFromV0);\r
 774             //      if (fDebug > 0) printf("-------------------Bo: neg track from original pt %.3f \n",aodTrack->Pt());\r
 775             if (esdV0Neg->GetSign() > 0) nPosTracks++;\r
 776             aodTrack->ConvertAliPIDtoAODPID();\r
 777             aodTrack->SetFlags(esdV0Neg->GetStatus());\r
 778             SetAODPID(esdV0Neg,aodTrack,detpid,timezero,esd->GetMagneticField());\r
 779         }\r
 780         else {\r
 781             aodTrack = dynamic_cast<AliAODTrack*>(aodTrackRefs->At(negFromV0));\r
 782             //      if (fDebug > 0) printf("-------------------Bo neg track from refArray pt %.3f \n",aodTrack->Pt());\r
 783         }\r
 784         vV0->AddDaughter(aodTrack);\r
 785 \r
 786 \r
 787         // Add the V0 the V0 array as well\r
 788         \r
 789         Double_t  dcaV0Daughters      = v0->GetDcaV0Daughters();\r
 790         Double_t  dcaV0ToPrimVertex   = v0->GetD(esd->GetPrimaryVertex()->GetX(),\r
 791                                                  esd->GetPrimaryVertex()->GetY(),\r
 792                                                  esd->GetPrimaryVertex()->GetZ());\r
 793         v0->GetPPxPyPz(momPosAtV0vtx[0],momPosAtV0vtx[1],momPosAtV0vtx[2]); \r
 794         v0->GetNPxPyPz(momNegAtV0vtx[0],momNegAtV0vtx[1],momNegAtV0vtx[2]); \r
 795         \r
 796         Double_t dcaDaughterToPrimVertex[2] = { 999., 999.}; // ..[0] = DCA in (x,y) for Pos and ..[1] = Neg\r
 797         dcaDaughterToPrimVertex[0] = TMath::Abs(esdV0Pos->GetD(  esd->GetPrimaryVertex()->GetX(),\r
 798                                                                  esd->GetPrimaryVertex()->GetY(),\r
 799                                                                         esd->GetMagneticField()) );\r
 800         dcaDaughterToPrimVertex[1] = TMath::Abs(esdV0Neg->GetD(  esd->GetPrimaryVertex()->GetX(),\r
 801                                                                  esd->GetPrimaryVertex()->GetY(),\r
 802                                                                         esd->GetMagneticField()) );\r
 803         \r
 804         aodV0 = new(v0s[jV0s++]) AliAODv0(vV0, \r
 805                                         dcaV0Daughters,\r
 806                                         dcaV0ToPrimVertex,\r
 807                                         momPosAtV0vtx,\r
 808                                         momNegAtV0vtx,\r
 809                                         dcaDaughterToPrimVertex);\r
 810 \r
 811         // set the aod v0 on-the-fly status\r
 812         aodV0->SetOnFlyStatus(v0->GetOnFlyStatus());\r
 813     }//End of loop on V0s \r
 814 \r
 815     v0s.Expand(jV0s);    \r
 816 \r
 817     if (fDebug > 0)   printf("   NAODCascades=%d / NAODV0s=%d\n", jCascades, jV0s);\r
 818     // end of V0 parts\r
 819 \r
 820 \r
 821     // Kinks: it is a big mess the access to the information in the kinks\r
 822     // The loop is on the tracks in order to find the mother and daugther of each kink\r
 823     \r
 824     \r
 825     for (Int_t iTrack=0; iTrack<nTracks; ++iTrack) {\r
 826         \r
 827         AliESDtrack * esdTrack = esd->GetTrack(iTrack);\r
 828         \r
 829         Int_t ikink = esdTrack->GetKinkIndex(0);\r
 830         \r
 831         if (ikink && nKinks) {\r
 832             // Negative kink index: mother, positive: daughter\r
 833             \r
 834             // Search for the second track of the kink\r
 835             \r
 836             for (Int_t jTrack = iTrack+1; jTrack<nTracks; ++jTrack) {\r
 837                 \r
 838                 AliESDtrack * esdTrack1 = esd->GetTrack(jTrack);\r
 839                 \r
 840                 Int_t jkink = esdTrack1->GetKinkIndex(0);\r
 841                 \r
 842                 if ( TMath::Abs(ikink)==TMath::Abs(jkink) ) {\r
 843                     \r
 844                     // The two tracks are from the same kink\r
 845                     \r
 846                     if (usedKink[TMath::Abs(ikink)-1]) continue; // skip used kinks\r
 847                     \r
 848                     Int_t imother = -1;\r
 849                     Int_t idaughter = -1;\r
 850                     \r
 851                     if (ikink<0 && jkink>0) {\r
 852                         \r
 853                         imother = iTrack;\r
 854                         idaughter = jTrack;\r
 855                     }\r
 856                     else if (ikink>0 && jkink<0) {\r
 857                         \r
 858                         imother = jTrack;\r
 859                         idaughter = iTrack;\r
 860                     }\r
 861                     else {\r
 862 //                      cerr << "Error: Wrong combination of kink indexes: "\r
 863 //                           << ikink << " " << jkink << endl;\r
 864                         continue;\r
 865                     }\r
 866                     \r
 867                     // Add the mother track if it passed primary track selection cuts\r
 868                     \r
 869                     AliAODTrack * mother = NULL;\r
 870                     \r
 871                     UInt_t selectInfo = 0;\r
 872                     if (fTrackFilter) {\r
 873                         selectInfo = fTrackFilter->IsSelected(esd->GetTrack(imother));\r
 874                         if (!selectInfo) continue;\r
 875                     }\r
 876                     \r
 877                     if (!usedTrack[imother]) {\r
 878                         \r
 879                         usedTrack[imother] = kTRUE;\r
 880                         \r
 881                         AliESDtrack *esdTrackM = esd->GetTrack(imother);\r
 882                         esdTrackM->GetPxPyPz(p);\r
 883                         esdTrackM->GetXYZ(pos);\r
 884                         esdTrackM->GetCovarianceXYZPxPyPz(covTr);\r
 885                         esdTrackM->GetESDpid(pid);\r
 886                         if(mcH)mcH->SelectParticle(esdTrackM->GetLabel());\r
 887                         mother = \r
 888                             new(tracks[jTracks++]) AliAODTrack(esdTrackM->GetID(),\r
 889                                                                esdTrackM->GetLabel(),\r
 890                                                                p,\r
 891                                                                kTRUE,\r
 892                                                                pos,\r
 893                                                                kFALSE,\r
 894                                                                covTr, \r
 895                                                                (Short_t)esdTrackM->GetSign(),\r
 896                                                                esdTrackM->GetITSClusterMap(), \r
 897                                                                pid,\r
 898                                                                primary,\r
 899                                                                kTRUE, // check if this is right\r
 900                                                                vtx->UsesTrack(esdTrack->GetID()),\r
 901                                                                AliAODTrack::kPrimary,\r
 902                                                                selectInfo);\r
 903                         aodTrackRefs->AddAt(mother, imother);\r
 904                         \r
 905                         if (esdTrackM->GetSign() > 0) nPosTracks++;\r
 906                         mother->SetFlags(esdTrackM->GetStatus());\r
 907                         mother->ConvertAliPIDtoAODPID();\r
 908                         primary->AddDaughter(mother);\r
 909                         mother->ConvertAliPIDtoAODPID();\r
 910                         SetAODPID(esdTrackM,mother,detpid,timezero,esd->GetMagneticField());\r
 911                     }\r
 912                     else {\r
 913 //                      cerr << "Error: event " << esd->GetEventNumberInFile() << " kink " << TMath::Abs(ikink)-1\r
 914 //                           << " track " << imother << " has already been used!" << endl;\r
 915                   }\r
 916                     \r
 917                     // Add the kink vertex\r
 918                     AliESDkink * kink = esd->GetKink(TMath::Abs(ikink)-1);\r
 919                     \r
 920                     AliAODVertex * vkink = \r
 921                         new(vertices[jVertices++]) AliAODVertex(kink->GetPosition(),\r
 922                                                                 NULL,\r
 923                                                                 0.,\r
 924                                                                 mother,\r
 925                                                                 esdTrack->GetID(),  // This is the track ID of the mother's track!\r
 926                                                                 AliAODVertex::kKink);\r
 927                     // Add the daughter track\r
 928                   \r
 929                     AliAODTrack * daughter = NULL;\r
 930                     \r
 931                     if (!usedTrack[idaughter]) {\r
 932                         \r
 933                         usedTrack[idaughter] = kTRUE;\r
 934                         \r
 935                         AliESDtrack *esdTrackD = esd->GetTrack(idaughter);\r
 936                         esdTrackD->GetPxPyPz(p);\r
 937                         esdTrackD->GetXYZ(pos);\r
 938                         esdTrackD->GetCovarianceXYZPxPyPz(covTr);\r
 939                         esdTrackD->GetESDpid(pid);\r
 940                         selectInfo = 0;\r
 941                         if (fTrackFilter) selectInfo = fTrackFilter->IsSelected(esdTrackD);\r
 942                         if(mcH)mcH->SelectParticle(esdTrackD->GetLabel());\r
 943                         daughter = \r
 944                             new(tracks[jTracks++]) AliAODTrack(esdTrackD->GetID(),\r
 945                                                                esdTrackD->GetLabel(),\r
 946                                                                p,\r
 947                                                                kTRUE,\r
 948                                                                pos,\r
 949                                                                kFALSE,\r
 950                                                                covTr, \r
 951                                                                (Short_t)esdTrackD->GetSign(),\r
 952                                                                esdTrackD->GetITSClusterMap(), \r
 953                                                                pid,\r
 954                                                                vkink,\r
 955                                                                kTRUE, // check if this is right\r
 956                                                                vtx->UsesTrack(esdTrack->GetID()),\r
 957                                                                AliAODTrack::kSecondary,\r
 958                                                                selectInfo);\r
 959                         \r
 960                         aodTrackRefs->AddAt(daughter, idaughter);\r
 961                         \r
 962                         if (esdTrackD->GetSign() > 0) nPosTracks++;\r
 963                         daughter->SetFlags(esdTrackD->GetStatus());\r
 964                         daughter->ConvertAliPIDtoAODPID();\r
 965                         vkink->AddDaughter(daughter);\r
 966                         daughter->ConvertAliPIDtoAODPID();\r
 967                        SetAODPID(esdTrackD,daughter,detpid,timezero,esd->GetMagneticField());\r
 968                     }\r
 969                     else {\r
 970 //                      cerr << "Error: event " << esd->GetEventNumberInFile() << " kink " << TMath::Abs(ikink)-1\r
 971 //                           << " track " << idaughter << " has already been used!" << endl;\r
 972                     }\r
 973                 }\r
 974             }\r
 975         }      \r
 976     }\r
 977     \r
 978   \r
 979     // Tracks (primary and orphan)\r
 980 \r
 981     if (fDebug > 0) printf("NUMBER OF ESD TRACKS %5d\n", nTracks);\r
 982     \r
 983     for (Int_t nTrack = 0; nTrack < nTracks; ++nTrack) {\r
 984         \r
 985         \r
 986         if (usedTrack[nTrack]) continue;\r
 987 \r
 988         AliESDtrack *esdTrack = esd->GetTrack(nTrack);\r
 989         UInt_t selectInfo = 0;\r
 990         //\r
 991         // Track selection\r
 992         if (fTrackFilter) {\r
 993             selectInfo = fTrackFilter->IsSelected(esdTrack);\r
 994             if (!selectInfo && !vtx->UsesTrack(esdTrack->GetID())) continue;\r
 995         }\r
 996         \r
 997         //\r
 998         esdTrack->GetPxPyPz(p);\r
 999         esdTrack->GetXYZ(pos);\r
1000         esdTrack->GetCovarianceXYZPxPyPz(covTr);\r
1001         esdTrack->GetESDpid(pid);\r
1002         if(mcH)mcH->SelectParticle(esdTrack->GetLabel());\r
1003         primary->AddDaughter(aodTrack =\r
1004                              new(tracks[jTracks++]) AliAODTrack(esdTrack->GetID(),\r
1005                                                                 esdTrack->GetLabel(),\r
1006                                                                 p,\r
1007                                                                 kTRUE,\r
1008                                                                 pos,\r
1009                                                                 kFALSE,\r
1010                                                                 covTr, \r
1011                                                                 (Short_t)esdTrack->GetSign(),\r
1012                                                                 esdTrack->GetITSClusterMap(), \r
1013                                                                 pid,\r
1014                                                                 primary,\r
1015                                                                 kTRUE, // check if this is right\r
1016                                                                 vtx->UsesTrack(esdTrack->GetID()),\r
1017                                                                 AliAODTrack::kPrimary, \r
1018                                                                 selectInfo)\r
1019                              );\r
1020         aodTrackRefs->AddAt(aodTrack, nTrack);\r
1021         \r
1022         if (esdTrack->GetSign() > 0) nPosTracks++;\r
1023         aodTrack->SetFlags(esdTrack->GetStatus());\r
1024         aodTrack->ConvertAliPIDtoAODPID();\r
1025         SetAODPID(esdTrack,aodTrack,detpid,timezero,esd->GetMagneticField());\r
1026     } // end of loop on tracks\r
1027     \r
1028     // Update number of AOD tracks in header at the end of track loop (M.G.)\r
1029     header->SetRefMultiplicity(jTracks);\r
1030     header->SetRefMultiplicityPos(nPosTracks);\r
1031     header->SetRefMultiplicityNeg(jTracks - nPosTracks);\r
1032     if (fDebug > 0) \r
1033       printf("   NAODTRACKS=%d  NPOS=%d  NNEG=%d\n", jTracks, nPosTracks, jTracks - nPosTracks);\r
1034     // Do not shrink the array of tracks - other filters may add to it (M.G)\r
1035     //   tracks.Expand(jTracks); // remove 'empty slots' due to unwritten tracks\r
1036   \r
1037     // Access to the AOD container of PMD clusters\r
1038     TClonesArray &pmdClusters = *(AODEvent()->GetPmdClusters());\r
1039     Int_t jPmdClusters=0;\r
1040   \r
1041     for (Int_t iPmd = 0; iPmd < nPmdClus; ++iPmd) {\r
1042       // file pmd clusters, to be revised!\r
1043       AliESDPmdTrack *pmdTrack = esd->GetPmdTrack(iPmd);\r
1044       Int_t nLabel = 0;\r
1045       Int_t *label = 0x0;\r
1046       Double_t posPmd[3] = { pmdTrack->GetClusterX(), pmdTrack->GetClusterY(), pmdTrack->GetClusterZ()};\r
1047       Double_t pidPmd[13] = { 0.}; // to be revised!\r
1048       // type not set!\r
1049       // assoc cluster not set\r
1050       new(pmdClusters[jPmdClusters++]) AliAODPmdCluster(iPmd, nLabel, label, pmdTrack->GetClusterADC(), posPmd, pidPmd);\r
1051     }\r
1052 \r
1053     // Access to the AOD container of clusters\r
1054     TClonesArray &caloClusters = *(AODEvent()->GetCaloClusters());\r
1055     Int_t jClusters=0;\r
1056  \r
1057     for (Int_t iClust=0; iClust<nCaloClus; ++iClust) {\r
1058 \r
1059       AliESDCaloCluster * cluster = esd->GetCaloCluster(iClust);\r
1060 \r
1061       Int_t id        = cluster->GetID();\r
1062       Int_t nLabel    = cluster->GetNLabels();\r
1063       TArrayI* labels = cluster->GetLabels();\r
1064       Int_t *label = 0;\r
1065       if (labels){\r
1066         label = (cluster->GetLabels())->GetArray();\r
1067         for(int i = 0;i < labels->GetSize();++i){\r
1068           if(mcH)mcH->SelectParticle(label[i]);\r
1069         }\r
1070       }     \r
1071 \r
1072       Float_t energy = cluster->E();\r
1073       cluster->GetPosition(posF);\r
1074       Char_t ttype = AliAODCluster::kUndef; \r
1075 \r
1076       if (cluster->GetClusterType() == AliESDCaloCluster::kPHOSCluster) {\r
1077         ttype=AliAODCluster::kPHOSNeutral;\r
1078       } \r
1079       else if (cluster->GetClusterType() == AliESDCaloCluster::kEMCALClusterv1) {\r
1080         ttype = AliAODCluster::kEMCALClusterv1;\r
1081       }\r
1082 \r
1083       \r
1084       AliAODCaloCluster *caloCluster = new(caloClusters[jClusters++]) AliAODCaloCluster(id,\r
1085                                                                                         nLabel,\r
1086                                                                                         label,\r
1087                                                                                         energy,\r
1088                                                                                         posF,\r
1089                                                                                         NULL,\r
1090                                                                                         ttype);\r
1091       \r
1092       caloCluster->SetCaloCluster(cluster->GetDistanceToBadChannel(),\r
1093                                   cluster->GetClusterDisp(),\r
1094                                   cluster->GetM20(), cluster->GetM02(),\r
1095                                   cluster->GetEmcCpvDistance(),  \r
1096                                   cluster->GetNExMax(),cluster->GetTOF()) ;\r
1097 \r
1098       caloCluster->SetPIDFromESD(cluster->GetPid());\r
1099       caloCluster->SetNCells(cluster->GetNCells());\r
1100       caloCluster->SetCellsAbsId(cluster->GetCellsAbsId());\r
1101       caloCluster->SetCellsAmplitudeFraction(cluster->GetCellsAmplitudeFraction());\r
1102 \r
1103       TArrayI* matchedT =       cluster->GetTracksMatched();\r
1104       if (nTracks>0 && matchedT && cluster->GetTrackMatched() >= 0) {   \r
1105         for (Int_t im = 0; im < matchedT->GetSize(); im++) {\r
1106             Int_t iESDtrack = matchedT->At(im);;\r
1107             if (aodTrackRefs->At(iESDtrack) != 0) {\r
1108                 caloCluster->AddTrackMatched((AliAODTrack*)aodTrackRefs->At(iESDtrack));\r
1109             }\r
1110         }\r
1111       }\r
1112       \r
1113     } \r
1114     caloClusters.Expand(jClusters); // resize TObjArray to 'remove' slots for pseudo clusters    \r
1115     // end of loop on calo clusters\r
1116 \r
1117     // fill EMCAL cell info\r
1118     if (esd->GetEMCALCells()) { // protection against missing ESD information\r
1119       AliESDCaloCells &esdEMcells = *(esd->GetEMCALCells());\r
1120       Int_t nEMcell = esdEMcells.GetNumberOfCells() ;\r
1121       \r
1122       AliAODCaloCells &aodEMcells = *(AODEvent()->GetEMCALCells());\r
1123       aodEMcells.CreateContainer(nEMcell);\r
1124       aodEMcells.SetType(AliAODCaloCells::kEMCAL);\r
1125       for (Int_t iCell = 0; iCell < nEMcell; iCell++) {      \r
1126         aodEMcells.SetCell(iCell,esdEMcells.GetCellNumber(iCell),esdEMcells.GetAmplitude(iCell));\r
1127       }\r
1128       aodEMcells.Sort();\r
1129     }\r
1130 \r
1131     // fill PHOS cell info\r
1132     if (esd->GetPHOSCells()) { // protection against missing ESD information\r
1133       AliESDCaloCells &esdPHcells = *(esd->GetPHOSCells());\r
1134       Int_t nPHcell = esdPHcells.GetNumberOfCells() ;\r
1135       \r
1136       AliAODCaloCells &aodPHcells = *(AODEvent()->GetPHOSCells());\r
1137       aodPHcells.CreateContainer(nPHcell);\r
1138       aodPHcells.SetType(AliAODCaloCells::kPHOS);\r
1139       for (Int_t iCell = 0; iCell < nPHcell; iCell++) {      \r
1140         aodPHcells.SetCell(iCell,esdPHcells.GetCellNumber(iCell),esdPHcells.GetAmplitude(iCell));\r
1141       }\r
1142       aodPHcells.Sort();\r
1143     }\r
1144 \r
1145     // tracklets    \r
1146     AliAODTracklets &SPDTracklets = *(AODEvent()->GetTracklets());\r
1147     const AliMultiplicity *mult = esd->GetMultiplicity();\r
1148     if (mult) {\r
1149       if (mult->GetNumberOfTracklets()>0) {\r
1150         SPDTracklets.CreateContainer(mult->GetNumberOfTracklets());\r
1151 \r
1152         for (Int_t n=0; n<mult->GetNumberOfTracklets(); n++) {\r
1153           if(mcH){\r
1154             mcH->SelectParticle(mult->GetLabel(n, 0));\r
1155             mcH->SelectParticle(mult->GetLabel(n, 1));\r
1156           }\r
1157           SPDTracklets.SetTracklet(n, mult->GetTheta(n), mult->GetPhi(n), mult->GetDeltaPhi(n), mult->GetLabel(n, 0),mult->GetLabel(n, 1));\r
1158         }\r
1159       }\r
1160     } else {\r
1161       //Printf("ERROR: AliMultiplicity could not be retrieved from ESD");\r
1162     }\r
1163 \r
1164     delete [] usedKink;\r
1165     delete [] usedV0;\r
1166     delete [] usedTrack;    \r
1167     delete    aodV0Refs;\r
1168     delete    aodV0VtxRefs;\r
1169     delete    aodTrackRefs;\r
1170 \r
1171     return;\r
1172 }\r
1173 \r
1174 \r
1175 void AliAnalysisTaskESDfilter::SetAODPID(AliESDtrack *esdtrack, AliAODTrack *aodtrack, AliAODPid *detpid, Double_t timezero, Double_t bfield)\r
1176 {\r
1177   //\r
1178   // Setter for the raw PID detector signals\r
1179   //\r
1180 \r
1181   // Save PID object for candidate electrons\r
1182     Bool_t pidSave = kFALSE;\r
1183     if (fTrackFilter) {\r
1184         Bool_t selectInfo = fTrackFilter->IsSelected("Electrons");\r
1185         if (selectInfo)  pidSave = kTRUE;\r
1186     }\r
1187 \r
1188 \r
1189     // Tracks passing pt cut \r
1190     if(esdtrack->Pt()>fHighPthreshold) {\r
1191         pidSave = kTRUE;\r
1192     } else {\r
1193         if(fPtshape){\r
1194             if(esdtrack->Pt()> fPtshape->GetXmin()){\r
1195                 Double_t y = fPtshape->Eval(esdtrack->Pt())/fPtshape->Eval(fHighPthreshold);\r
1196                 if(gRandom->Rndm(0)<1./y){\r
1197                     pidSave = kTRUE;\r
1198                 }//end rndm\r
1199             }//end if p < pmin\r
1200         }//end if p function\r
1201     }// end else\r
1202 \r
1203     if (pidSave) {\r
1204       if(!aodtrack->GetDetPid()){// prevent memory leak when calling SetAODPID twice for the same track\r
1205         detpid = new AliAODPid();\r
1206         SetDetectorRawSignals(detpid,esdtrack,timezero, bfield);\r
1207         aodtrack->SetDetPID(detpid);\r
1208       }\r
1209     }\r
1210 }\r
1211 \r
1212 void AliAnalysisTaskESDfilter::SetDetectorRawSignals(AliAODPid *aodpid, AliESDtrack *track, Double_t timezero, Double_t bfield)\r
1213 {\r
1214 //\r
1215 //assignment of the detector signals (AliXXXesdPID inspired)\r
1216 //\r
1217  if(!track){\r
1218  AliInfo("no ESD track found. .....exiting");\r
1219  return;\r
1220  }\r
1221 \r
1222  aodpid->SetITSsignal(track->GetITSsignal());\r
1223  aodpid->SetTPCsignal(track->GetTPCsignal());\r
1224  //n TRD planes = 6\r
1225 \r
1226  Int_t nslices = track->GetNumberOfTRDslices()*6;\r
1227  Double_t *trdslices = new Double_t[nslices];\r
1228  for(Int_t iSl =0; iSl < track->GetNumberOfTRDslices(); iSl++) {\r
1229      for(Int_t iPl =0; iPl<6; iPl++) trdslices[iPl*track->GetNumberOfTRDslices()+iSl] = track->GetTRDslice(iPl,iSl);\r
1230     }\r
1231 \r
1232 \r
1233  aodpid->SetTRDsignal(track->GetNumberOfTRDslices()*6,trdslices);\r
1234  Double_t times[AliAODPid::kSPECIES]; track->GetIntegratedTimes(times);\r
1235  aodpid->SetIntegratedTimes(times);\r
1236 \r
1237  aodpid->SetTOFsignal(track->GetTOFsignal()-timezero); // to be fixed\r
1238  aodpid->SetHMPIDsignal(track->GetHMPIDsignal());\r
1239 \r
1240  //Extrapolate track to EMCAL surface for AOD-level track-cluster matching\r
1241  Double_t emcpos[3] = {0.,0.,0.};\r
1242  Double_t emcmom[3] = {0.,0.,0.};\r
1243  aodpid->SetEMCALPosition(emcpos);\r
1244  aodpid->SetEMCALMomentum(emcmom);\r
1245 \r
1246  AliExternalTrackParam *outerparam = (AliExternalTrackParam*)track->GetOuterParam();\r
1247  if(!outerparam) return;\r
1248 \r
1249  //To be replaced by call to AliEMCALGeoUtils when the class becomes available\r
1250  Double_t radius = 441.0; //[cm] EMCAL radius +13cm\r
1251 \r
1252  Bool_t okpos = outerparam->GetXYZAt(radius,bfield,emcpos);\r
1253  Bool_t okmom = outerparam->GetPxPyPzAt(radius,bfield,emcmom);\r
1254  if(!(okpos && okmom)) return;\r
1255 \r
1256  aodpid->SetEMCALPosition(emcpos);\r
1257  aodpid->SetEMCALMomentum(emcmom);\r
1258 \r
1259 }\r
1260 \r
1261 void AliAnalysisTaskESDfilter::Terminate(Option_t */*option*/)\r
1262 {\r
1263 // Terminate analysis\r
1264 //\r
1265     if (fDebug > 1) printf("AnalysisESDfilter: Terminate() \n");\r
1266 }\r
1267 \r
1268 void  AliAnalysisTaskESDfilter::PrintMCInfo(AliStack *pStack,Int_t label){\r
1269   if(!pStack)return;\r
1270   label = TMath::Abs(label);\r
1271   TParticle *part = pStack->Particle(label);\r
1272   Printf("########################");\r
1273   Printf("%s:%d %d UniqueID %d PDG %d P %3.3f",(char*)__FILE__,__LINE__,label,part->GetUniqueID(),part->GetPdgCode(),part->P());\r
1274   part->Print();\r
1275   TParticle* mother = part;\r
1276   Int_t imo = part->GetFirstMother();\r
1277   Int_t nprim = pStack->GetNprimary();\r
1278   //  while((imo >= nprim) && (mother->GetUniqueID() == 4)) {\r
1279   while((imo >= nprim)) {\r
1280     mother =  pStack->Particle(imo);\r
1281     Printf("Mother %s:%d Label %d UniqueID %d PDG %d P %3.3f",(char*)__FILE__,__LINE__,imo,mother->GetUniqueID(),mother->GetPdgCode(),mother->P());\r
1282     mother->Print();\r
1283     imo =  mother->GetFirstMother();\r
1284   }\r
1285   Printf("########################");\r
1286 }\r