ANALYSIS/AliAnalysisTaskESDfilter.cxx

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