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