STEER/CreateAODfromESD.C

   1 #if !defined(__CINT__) || defined(__MAKECINT__)
   2
   3 #include <Riostream.h>
   4 #include <TFile.h>
   5 #include <TTree.h>
   6 #include <TMath.h>
   7
   8 #include "AliAODEvent.h"
   9 #include "AliAODHeader.h"
  10 #include "AliAODVertex.h"
  11 #include "AliAODTrack.h"
  12 #include "AliAODCluster.h"
  13 #include "AliAODTracklets.h"
  14
  15 #include "AliESDEvent.h"
  16 #include "AliESDtrack.h"
  17 #include "AliESDMuonTrack.h"
  18 #include "AliESDVertex.h"
  19 #include "AliESDv0.h"
  20 #include "AliESDcascade.h"
  21 #include "AliESDCaloCluster.h"
  22
  23 #endif
  24
  25 void CreateAODfromESD(const char *inFileName = "AliESDs.root",
  26                       const char *outFileName = "AliAOD.root") {
  27
  28   // create an AliAOD object
  29   AliAODEvent *aod = new AliAODEvent();
  30   aod->CreateStdContent();
  31
  32   // open the file
  33   TFile *outFile = TFile::Open(outFileName, "RECREATE");
  34
  35   // create the tree
  36   TTree *aodTree = new TTree("aodTree", "AliAOD tree");
  37   aodTree->Branch(aod->GetList());
  38
  39   // connect to ESD
  40   TFile *inFile = TFile::Open(inFileName, "READ");
  41   TTree *t = (TTree*) inFile->Get("esdTree");
  42   AliESDEvent *esd = new AliESDEvent();
  43   esd->ReadFromTree(t);
  44
  45   Int_t nEvents = t->GetEntries();
  46
  47   // set arrays and pointers
  48   Float_t posF[3];
  49   Double_t pos[3];
  50   Double_t p[3];
  51   Double_t covVtx[6];
  52   Double_t covTr[21];
  53   Double_t pid[10];
  54
  55   // loop over events and fill them
  56   for (Int_t iEvent = 0; iEvent < nEvents; ++iEvent) {
  57     t->GetEntry(iEvent);
  58
  59     // Multiplicity information needed by the header (to be revised!)
  60     Int_t nTracks   = esd->GetNumberOfTracks();
  61     Int_t nPosTracks = 0;
  62     for (Int_t iTrack=0; iTrack<nTracks; ++iTrack)
  63       if (esd->GetTrack(iTrack)->Charge()> 0) nPosTracks++;
  64
  65     // Access to the header
  66     AliAODHeader *header = aod->GetHeader();
  67
  68     // fill the header
  69     *header = AliAODHeader(esd->GetRunNumber(),
  70                            esd->GetBunchCrossNumber(),
  71                            esd->GetOrbitNumber(),
  72                            esd->GetPeriodNumber(),
  73                            nTracks,
  74                            nPosTracks,
  75                            nTracks-nPosTracks,
  76                            esd->GetMagneticField(),
  77                            -999., // fill muon magnetic field
  78                            -999., // centrality; to be filled, still
  79                            esd->GetZDCN1Energy(),
  80                            esd->GetZDCP1Energy(),
  81                            esd->GetZDCN2Energy(),
  82                            esd->GetZDCP2Energy(),
  83                            esd->GetZDCEMEnergy(),
  84                            esd->GetTriggerMask(),
  85                            esd->GetTriggerCluster(),
  86                            esd->GetEventType());
  87
  88     Int_t nV0s      = esd->GetNumberOfV0s();
  89     Int_t nCascades = esd->GetNumberOfCascades();
  90     Int_t nKinks    = esd->GetNumberOfKinks();
  91     Int_t nVertices = nV0s + nCascades + nKinks;
  92
  93     aod->ResetStd(nTracks, nVertices);
  94     AliAODTrack *aodTrack;
  95
  96     // Array to take into account the tracks already added to the AOD
  97     Bool_t * usedTrack = NULL;
  98     if (nTracks>0) {
  99       usedTrack = new Bool_t[nTracks];
 100       for (Int_t iTrack=0; iTrack<nTracks; ++iTrack) usedTrack[iTrack]=kFALSE;
 101     }
 102     // Array to take into account the V0s already added to the AOD
 103     Bool_t * usedV0 = NULL;
 104     if (nV0s>0) {
 105       usedV0 = new Bool_t[nV0s];
 106       for (Int_t iV0=0; iV0<nV0s; ++iV0) usedV0[iV0]=kFALSE;
 107     }
 108     // Array to take into account the kinks already added to the AOD
 109     Bool_t * usedKink = NULL;
 110     if (nKinks>0) {
 111       usedKink = new Bool_t[nKinks];
 112       for (Int_t iKink=0; iKink<nKinks; ++iKink) usedKink[iKink]=kFALSE;
 113     }
 114
 115     // Access to the AOD container of vertices
 116     TClonesArray &vertices = *(aod->GetVertices());
 117     Int_t jVertices=0;
 118
 119     // Access to the AOD container of tracks
 120     TClonesArray &tracks = *(aod->GetTracks());
 121     Int_t jTracks=0;
 122
 123     // Add primary vertex. The primary tracks will be defined
 124     // after the loops on the composite objects (V0, cascades, kinks)
 125     const AliESDVertex *vtx = esd->GetPrimaryVertex();
 126
 127     vtx->GetXYZ(pos); // position
 128     vtx->GetCovMatrix(covVtx); //covariance matrix
 129
 130     AliAODVertex * primary = new(vertices[jVertices++])
 131       AliAODVertex(pos, covVtx, vtx->GetChi2toNDF(), NULL, AliAODVertex::kPrimary);
 132
 133     // Create vertices starting from the most complex objects
 134
 135     // Cascades
 136     for (Int_t nCascade = 0; nCascade < nCascades; ++nCascade) {
 137       AliESDcascade *cascade = esd->GetCascade(nCascade);
 138
 139       cascade->GetXYZ(pos[0], pos[1], pos[2]);
 140       cascade->GetPosCovXi(covVtx);
 141
 142       // Add the cascade vertex
 143       AliAODVertex * vcascade = new(vertices[jVertices++]) AliAODVertex(pos,
 144                                                                         covVtx,
 145                                                                         cascade->GetChi2Xi(), // = chi2/NDF since NDF = 2*2-3
 146                                                                         primary,
 147                                                                         AliAODVertex::kCascade);
 148
 149       primary->AddDaughter(vcascade);
 150
 151       // Add the V0 from the cascade. The ESD class have to be optimized...
 152       // Now we have to search for the corresponding Vo in the list of V0s
 153       // using the indeces of the positive and negative tracks
 154
 155       Int_t posFromV0 = cascade->GetPindex();
 156       Int_t negFromV0 = cascade->GetNindex();
 157
 158
 159       AliESDv0 * v0 = 0x0;
 160       Int_t indV0 = -1;
 161
 162       for (Int_t iV0=0; iV0<nV0s; ++iV0) {
 163
 164         v0 = esd->GetV0(iV0);
 165         Int_t posV0 = v0->GetPindex();
 166         Int_t negV0 = v0->GetNindex();
 167
 168         if (posV0==posFromV0 && negV0==negFromV0) {
 169           indV0 = iV0;
 170           break;
 171         }
 172       }
 173
 174       AliAODVertex * vV0FromCascade = 0x0;
 175
 176       if (indV0>-1 && !usedV0[indV0] ) {
 177
 178         // the V0 exists in the array of V0s and is not used
 179
 180         usedV0[indV0] = kTRUE;
 181
 182         v0->GetXYZ(pos[0], pos[1], pos[2]);
 183         v0->GetPosCov(covVtx);
 184
 185         vV0FromCascade = new(vertices[jVertices++]) AliAODVertex(pos,
 186                                                                  covVtx,
 187                                                                  v0->GetChi2V0(), // = chi2/NDF since NDF = 2*2-3
 188                                                                  vcascade,
 189                                                                  AliAODVertex::kV0);
 190       } else {
 191
 192         // the V0 doesn't exist in the array of V0s or was used
 193         cerr << "Error: event " << iEvent << " cascade " << nCascade
 194              << " The V0 " << indV0
 195              << " doesn't exist in the array of V0s or was used!" << endl;
 196
 197         cascade->GetXYZ(pos[0], pos[1], pos[2]);
 198         cascade->GetPosCov(covVtx);
 199
 200         vV0FromCascade = new(vertices[jVertices++]) AliAODVertex(pos,
 201                                                                  covVtx,
 202                                                                  v0->GetChi2V0(), // = chi2/NDF since NDF = 2*2-3
 203                                                                  vcascade,
 204                                                                  AliAODVertex::kV0);
 205         vcascade->AddDaughter(vV0FromCascade);
 206       }
 207
 208       // Add the positive tracks from the V0
 209
 210       if (! usedTrack[posFromV0]) {
 211
 212         usedTrack[posFromV0] = kTRUE;
 213
 214         AliESDtrack *esdTrack = esd->GetTrack(posFromV0);
 215         esdTrack->GetPxPyPz(p);
 216         esdTrack->GetXYZ(pos);
 217         esdTrack->GetCovarianceXYZPxPyPz(covTr);
 218         esdTrack->GetESDpid(pid);
 219
 220         vV0FromCascade->AddDaughter(aodTrack =
 221                                     new(tracks[jTracks++]) AliAODTrack(esdTrack->GetID(),
 222                                            esdTrack->GetLabel(),
 223                                            p,
 224                                            kTRUE,
 225                                            pos,
 226                                            kFALSE,
 227                                            covTr,
 228                                            (Short_t)esdTrack->Charge(),
 229                                            esdTrack->GetITSClusterMap(),
 230                                            pid,
 231                                            vV0FromCascade,
 232                                            kTRUE,  // check if this is right
 233                                            kFALSE, // check if this is right
 234                                            AliAODTrack::kSecondary)
 235                 );
 236         aodTrack->ConvertAliPIDtoAODPID();
 237       }
 238       else {
 239         cerr << "Error: event " << iEvent << " cascade " << nCascade
 240              << " track " << posFromV0 << " has already been used!" << endl;
 241       }
 242
 243       // Add the negative tracks from the V0
 244
 245       if (!usedTrack[negFromV0]) {
 246
 247         usedTrack[negFromV0] = kTRUE;
 248
 249         AliESDtrack *esdTrack = esd->GetTrack(negFromV0);
 250         esdTrack->GetPxPyPz(p);
 251         esdTrack->GetXYZ(pos);
 252         esdTrack->GetCovarianceXYZPxPyPz(covTr);
 253         esdTrack->GetESDpid(pid);
 254
 255         vV0FromCascade->AddDaughter(aodTrack =
 256                 new(tracks[jTracks++]) AliAODTrack(esdTrack->GetID(),
 257                                            esdTrack->GetLabel(),
 258                                            p,
 259                                            kTRUE,
 260                                            pos,
 261                                            kFALSE,
 262                                            covTr,
 263                                            (Short_t)esdTrack->Charge(),
 264                                            esdTrack->GetITSClusterMap(),
 265                                            pid,
 266                                            vV0FromCascade,
 267                                            kTRUE,  // check if this is right
 268                                            kFALSE, // check if this is right
 269                                            AliAODTrack::kSecondary)
 270                 );
 271         aodTrack->ConvertAliPIDtoAODPID();
 272       }
 273       else {
 274         cerr << "Error: event " << iEvent << " cascade " << nCascade
 275              << " track " << negFromV0 << " has already been used!" << endl;
 276       }
 277
 278       // Add the bachelor track from the cascade
 279
 280       Int_t bachelor = cascade->GetBindex();
 281
 282       if(!usedTrack[bachelor]) {
 283
 284         usedTrack[bachelor] = kTRUE;
 285
 286         AliESDtrack *esdTrack = esd->GetTrack(bachelor);
 287         esdTrack->GetPxPyPz(p);
 288         esdTrack->GetXYZ(pos);
 289         esdTrack->GetCovarianceXYZPxPyPz(covTr);
 290         esdTrack->GetESDpid(pid);
 291
 292         vcascade->AddDaughter(aodTrack =
 293                 new(tracks[jTracks++]) AliAODTrack(esdTrack->GetID(),
 294                                            esdTrack->GetLabel(),
 295                                            p,
 296                                            kTRUE,
 297                                            pos,
 298                                            kFALSE,
 299                                            covTr,
 300                                            (Short_t)esdTrack->Charge(),
 301                                            esdTrack->GetITSClusterMap(),
 302                                            pid,
 303                                            vcascade,
 304                                            kTRUE,  // check if this is right
 305                                            kFALSE, // check if this is right
 306                                            AliAODTrack::kSecondary)
 307                 );
 308         aodTrack->ConvertAliPIDtoAODPID();
 309      }
 310       else {
 311         cerr << "Error: event " << iEvent << " cascade " << nCascade
 312              << " track " << bachelor << " has already been used!" << endl;
 313       }
 314
 315       // Add the primary track of the cascade (if any)
 316
 317     } // end of the loop on cascades
 318
 319     // V0s
 320
 321     for (Int_t nV0 = 0; nV0 < nV0s; ++nV0) {
 322
 323       if (usedV0[nV0]) continue; // skip if aready added to the AOD
 324
 325       AliESDv0 *v0 = esd->GetV0(nV0);
 326
 327       v0->GetXYZ(pos[0], pos[1], pos[2]);
 328       v0->GetPosCov(covVtx);
 329
 330       AliAODVertex * vV0 =
 331         new(vertices[jVertices++]) AliAODVertex(pos,
 332                                                 covVtx,
 333                                                 v0->GetChi2V0(), // = chi2/NDF since NDF = 2*2-3
 334                                                 primary,
 335                                                 AliAODVertex::kV0);
 336       primary->AddDaughter(vV0);
 337
 338       Int_t posFromV0 = v0->GetPindex();
 339       Int_t negFromV0 = v0->GetNindex();
 340
 341       // Add the positive tracks from the V0
 342
 343       if (!usedTrack[posFromV0]) {
 344
 345         usedTrack[posFromV0] = kTRUE;
 346
 347         AliESDtrack *esdTrack = esd->GetTrack(posFromV0);
 348         esdTrack->GetPxPyPz(p);
 349         esdTrack->GetXYZ(pos);
 350         esdTrack->GetCovarianceXYZPxPyPz(covTr);
 351         esdTrack->GetESDpid(pid);
 352
 353         vV0->AddDaughter(aodTrack =
 354                 new(tracks[jTracks++]) AliAODTrack(esdTrack->GetID(),
 355                                            esdTrack->GetLabel(),
 356                                            p,
 357                                            kTRUE,
 358                                            pos,
 359                                            kFALSE,
 360                                            covTr,
 361                                            (Short_t)esdTrack->Charge(),
 362                                            esdTrack->GetITSClusterMap(),
 363                                            pid,
 364                                            vV0,
 365                                            kTRUE,  // check if this is right
 366                                            kFALSE, // check if this is right
 367                                            AliAODTrack::kSecondary)
 368                 );
 369         aodTrack->ConvertAliPIDtoAODPID();
 370       }
 371       else {
 372         cerr << "Error: event " << iEvent << " V0 " << nV0
 373              << " track " << posFromV0 << " has already been used!" << endl;
 374       }
 375
 376       // Add the negative tracks from the V0
 377
 378       if (!usedTrack[negFromV0]) {
 379
 380         usedTrack[negFromV0] = kTRUE;
 381
 382         AliESDtrack *esdTrack = esd->GetTrack(negFromV0);
 383         esdTrack->GetPxPyPz(p);
 384         esdTrack->GetXYZ(pos);
 385         esdTrack->GetCovarianceXYZPxPyPz(covTr);
 386         esdTrack->GetESDpid(pid);
 387
 388         vV0->AddDaughter(aodTrack =
 389                 new(tracks[jTracks++]) AliAODTrack(esdTrack->GetID(),
 390                                            esdTrack->GetLabel(),
 391                                            p,
 392                                            kTRUE,
 393                                            pos,
 394                                            kFALSE,
 395                                            covTr,
 396                                            (Short_t)esdTrack->Charge(),
 397                                            esdTrack->GetITSClusterMap(),
 398                                            pid,
 399                                            vV0,
 400                                            kTRUE,  // check if this is right
 401                                            kFALSE, // check if this is right
 402                                            AliAODTrack::kSecondary)
 403                 );
 404         aodTrack->ConvertAliPIDtoAODPID();
 405       }
 406       else {
 407         cerr << "Error: event " << iEvent << " V0 " << nV0
 408              << " track " << negFromV0 << " has already been used!" << endl;
 409       }
 410
 411     } // end of the loop on V0s
 412
 413     // Kinks: it is a big mess the access to the information in the kinks
 414     // The loop is on the tracks in order to find the mother and daugther of each kink
 415
 416
 417     for (Int_t iTrack=0; iTrack<nTracks; ++iTrack) {
 418
 419
 420       AliESDtrack * esdTrack = esd->GetTrack(iTrack);
 421
 422       Int_t ikink = esdTrack->GetKinkIndex(0);
 423
 424       if (ikink) {
 425         // Negative kink index: mother, positive: daughter
 426
 427         // Search for the second track of the kink
 428
 429         for (Int_t jTrack = iTrack+1; jTrack<nTracks; ++jTrack) {
 430
 431           AliESDtrack * esdTrack1 = esd->GetTrack(jTrack);
 432
 433           Int_t jkink = esdTrack1->GetKinkIndex(0);
 434
 435           if ( TMath::Abs(ikink)==TMath::Abs(jkink) ) {
 436
 437             // The two tracks are from the same kink
 438
 439             if (usedKink[TMath::Abs(ikink)-1]) continue; // skip used kinks
 440
 441             Int_t imother = -1;
 442             Int_t idaughter = -1;
 443
 444             if (ikink<0 && jkink>0) {
 445
 446               imother = iTrack;
 447               idaughter = jTrack;
 448             }
 449             else if (ikink>0 && jkink<0) {
 450
 451               imother = jTrack;
 452               idaughter = iTrack;
 453             }
 454             else {
 455               cerr << "Error: Wrong combination of kink indexes: "
 456               << ikink << " " << jkink << endl;
 457               continue;
 458             }
 459
 460             // Add the mother track
 461
 462             AliAODTrack * mother = NULL;
 463
 464             if (!usedTrack[imother]) {
 465
 466               usedTrack[imother] = kTRUE;
 467
 468               AliESDtrack *esdTrack = esd->GetTrack(imother);
 469               esdTrack->GetPxPyPz(p);
 470               esdTrack->GetXYZ(pos);
 471               esdTrack->GetCovarianceXYZPxPyPz(covTr);
 472               esdTrack->GetESDpid(pid);
 473
 474               mother =
 475                 new(tracks[jTracks++]) AliAODTrack(esdTrack->GetID(),
 476                                            esdTrack->GetLabel(),
 477                                            p,
 478                                            kTRUE,
 479                                            pos,
 480                                            kFALSE,
 481                                            covTr,
 482                                            (Short_t)esdTrack->Charge(),
 483                                            esdTrack->GetITSClusterMap(),
 484                                            pid,
 485                                            primary,
 486                                            kTRUE, // check if this is right
 487                                            kTRUE, // check if this is right
 488                                            AliAODTrack::kPrimary);
 489               primary->AddDaughter(mother);
 490               mother->ConvertAliPIDtoAODPID();
 491             }
 492             else {
 493               cerr << "Error: event " << iEvent << " kink " << TMath::Abs(ikink)-1
 494               << " track " << imother << " has already been used!" << endl;
 495             }
 496
 497             // Add the kink vertex
 498             AliESDkink * kink = esd->GetKink(TMath::Abs(ikink)-1);
 499
 500             AliAODVertex * vkink =
 501             new(vertices[jVertices++]) AliAODVertex(kink->GetPosition(),
 502                                                     NULL,
 503                                                     0.,
 504                                                     mother,
 505                                                     AliAODVertex::kKink);
 506             // Add the daughter track
 507
 508             AliAODTrack * daughter = NULL;
 509
 510             if (!usedTrack[idaughter]) {
 511
 512               usedTrack[idaughter] = kTRUE;
 513
 514               AliESDtrack *esdTrack = esd->GetTrack(idaughter);
 515               esdTrack->GetPxPyPz(p);
 516               esdTrack->GetXYZ(pos);
 517               esdTrack->GetCovarianceXYZPxPyPz(covTr);
 518               esdTrack->GetESDpid(pid);
 519
 520               daughter =
 521                 new(tracks[jTracks++]) AliAODTrack(esdTrack->GetID(),
 522                                            esdTrack->GetLabel(),
 523                                            p,
 524                                            kTRUE,
 525                                            pos,
 526                                            kFALSE,
 527                                            covTr,
 528                                            (Short_t)esdTrack->Charge(),
 529                                            esdTrack->GetITSClusterMap(),
 530                                            pid,
 531                                            vkink,
 532                                            kTRUE, // check if this is right
 533                                            kTRUE, // check if this is right
 534                                            AliAODTrack::kPrimary);
 535               vkink->AddDaughter(daughter);
 536               daughter->ConvertAliPIDtoAODPID();
 537             }
 538             else {
 539               cerr << "Error: event " << iEvent << " kink " << TMath::Abs(ikink)-1
 540               << " track " << idaughter << " has already been used!" << endl;
 541             }
 542
 543
 544           }
 545         }
 546
 547       }
 548
 549     }
 550
 551
 552     // Tracks (primary and orphan)
 553
 554     for (Int_t nTrack = 0; nTrack < nTracks; ++nTrack) {
 555
 556
 557       if (usedTrack[nTrack]) continue;
 558
 559       AliESDtrack *esdTrack = esd->GetTrack(nTrack);
 560       esdTrack->GetPxPyPz(p);
 561       esdTrack->GetXYZ(pos);
 562       esdTrack->GetCovarianceXYZPxPyPz(covTr);
 563       esdTrack->GetESDpid(pid);
 564
 565       Float_t impactXY, impactZ;
 566
 567       esdTrack->GetImpactParameters(impactXY,impactZ);
 568
 569       if (impactXY<3) {
 570         // track inside the beam pipe
 571
 572         primary->AddDaughter(aodTrack =
 573             new(tracks[jTracks++]) AliAODTrack(esdTrack->GetID(),
 574                                          esdTrack->GetLabel(),
 575                                          p,
 576                                          kTRUE,
 577                                          pos,
 578                                          kFALSE,
 579                                          covTr,
 580                                          (Short_t)esdTrack->Charge(),
 581                                          esdTrack->GetITSClusterMap(),
 582                                          pid,
 583                                          primary,
 584                                          kTRUE, // check if this is right
 585                                          kTRUE, // check if this is right
 586                                          AliAODTrack::kPrimary)
 587             );
 588         aodTrack->ConvertAliPIDtoAODPID();
 589       }
 590       else {
 591         // outside the beam pipe: orphan track
 592             aodTrack =
 593             new(tracks[jTracks++]) AliAODTrack(esdTrack->GetID(),
 594                                          esdTrack->GetLabel(),
 595                                          p,
 596                                          kTRUE,
 597                                          pos,
 598                                          kFALSE,
 599                                          covTr,
 600                                          (Short_t)esdTrack->Charge(),
 601                                          esdTrack->GetITSClusterMap(),
 602                                          pid,
 603                                          NULL,
 604                                          kFALSE, // check if this is right
 605                                          kFALSE, // check if this is right
 606                                          AliAODTrack::kOrphan);
 607             aodTrack->ConvertAliPIDtoAODPID();
 608       }
 609     } // end of loop on tracks
 610
 611     // muon tracks
 612     Int_t nMuTracks = esd->GetNumberOfMuonTracks();
 613     for (Int_t nMuTrack = 0; nMuTrack < nMuTracks; ++nMuTrack) {
 614
 615       AliESDMuonTrack *esdMuTrack = esd->GetMuonTrack(nMuTrack);
 616       p[0] = esdMuTrack->Px();
 617       p[1] = esdMuTrack->Py();
 618       p[2] = esdMuTrack->Pz();
 619       pos[0] = primary->GetX();
 620       pos[1] = primary->GetY();
 621       pos[2] = primary->GetZ();
 622
 623       // has to be changed once the muon pid is provided by the ESD
 624       for (Int_t i = 0; i < 10; pid[i++] = 0.); pid[AliAODTrack::kMuon]=1.;
 625
 626       primary->AddDaughter( aodTrack =
 627           new(tracks[jTracks++]) AliAODTrack(0, // no ID provided
 628                                              0, // no label provided
 629                                              p,
 630                                              kTRUE,
 631                                              pos,
 632                                              kFALSE,
 633                                              NULL, // no covariance matrix provided
 634                                              esdMuTrack->Charge(),
 635                                              0, // no ITSMuonClusterMap
 636                                              pid,
 637                                              primary,
 638                                              kFALSE,  // muon tracks are not used to fit the primary vtx
 639                                              kFALSE,  // not used for vertex fit
 640                                              AliAODTrack::kPrimary)
 641           );
 642         aodTrack->SetHitsPatternInTrigCh(esdMuTrack->GetHitsPatternInTrigCh());
 643         Int_t track2Trigger = esdMuTrack->GetMatchTrigger();
 644         aodTrack->SetMatchTrigger(track2Trigger);
 645         if (track2Trigger)
 646           aodTrack->SetChi2MatchTrigger(esdMuTrack->GetChi2MatchTrigger());
 647         else
 648           aodTrack->SetChi2MatchTrigger(0.);
 649     }
 650
 651     // Access to the AOD container of clusters
 652     TClonesArray &clusters = *(aod->GetClusters());
 653     Int_t jClusters=0;
 654
 655     // Calo Clusters
 656     Int_t nClusters    = esd->GetNumberOfCaloClusters();
 657
 658     for (Int_t iClust=0; iClust<nClusters; ++iClust) {
 659
 660       AliESDCaloCluster * cluster = esd->GetCaloCluster(iClust);
 661
 662       Int_t id = cluster->GetID();
 663       Int_t label = -1;
 664       Float_t energy = cluster->E();
 665       cluster->GetPosition(posF);
 666       AliAODVertex *prodVertex = primary;
 667       AliAODTrack *primTrack = NULL;
 668       Char_t ttype=AliAODCluster::kUndef;
 669
 670       if (cluster->IsPHOS()) ttype=AliAODCluster::kPHOSNeutral;
 671       else if (cluster->IsEMCAL()) {
 672
 673         if (cluster->GetClusterType() == AliESDCaloCluster::kPseudoCluster)
 674           ttype = AliAODCluster::kEMCALPseudoCluster;
 675         else
 676           ttype = AliAODCluster::kEMCALClusterv1;
 677
 678       }
 679
 680       new(clusters[jClusters++]) AliAODCluster(id,
 681                                                label,
 682                                                energy,
 683                                                pos,
 684                                                NULL, // no covariance matrix provided
 685                                                NULL, // no pid for clusters provided
 686                                                prodVertex,
 687                                                primTrack,
 688                                                ttype);
 689
 690     } // end of loop on calo clusters
 691
 692     // tracklets
 693     const AliMultiplicity *mult = esd->GetMultiplicity();
 694     if (mult) {
 695       if (mult->GetNumberOfTracklets()>0) {
 696         aod->GetTracklets()->CreateContainer(mult->GetNumberOfTracklets());
 697
 698         for (Int_t n=0; n<mult->GetNumberOfTracklets(); n++) {
 699           aod->GetTracklets()->SetTracklet(n, mult->GetTheta(n), mult->GetPhi(n), mult->GetDeltaPhi(n), mult->GetLabel(n));
 700         }
 701       }
 702     } else {
 703       Printf("ERROR: AliMultiplicity could not be retrieved from ESD");
 704     }
 705
 706     delete [] usedTrack;
 707     delete [] usedV0;
 708     delete [] usedKink;
 709
 710     // fill the tree for this event
 711     aodTree->Fill();
 712   } // end of event loop
 713
 714   aodTree->GetUserInfo()->Add(aod);
 715
 716   // close ESD file
 717   inFile->Close();
 718
 719   // write the tree to the specified file
 720   outFile = aodTree->GetCurrentFile();
 721   outFile->cd();
 722   aodTree->Write();
 723   outFile->Close();
 724
 725 }