ANALYSIS/AliAnalysisTaskESDfilter.cxx

   1 /**************************************************************************
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   3  *                                                                        *
   4  * Author: The ALICE Off-line Project.                                    *
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  13  * provided "as is" without express or implied warranty.                  *
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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     fHighPthreshold(0),
  57     fPtshape(0x0)
  58 {
  59   // Default constructor
  60 }
  61
  62 AliAnalysisTaskESDfilter::AliAnalysisTaskESDfilter(const char* name):
  63     AliAnalysisTaskSE(name),
  64     fTrackFilter(0x0),
  65     fKinkFilter(0x0),
  66     fV0Filter(0x0),
  67     fHighPthreshold(0),
  68     fPtshape(0x0)
  69 {
  70   // Constructor
  71 }
  72
  73 void AliAnalysisTaskESDfilter::UserCreateOutputObjects()
  74 {
  75 // Create the output container
  76     OutputTree()->GetUserInfo()->Add(fTrackFilter);
  77 }
  78
  79 void AliAnalysisTaskESDfilter::Init()
  80 {
  81     // Initialization
  82     if (fDebug > 1) AliInfo("Init() \n");
  83     // Call configuration file
  84 }
  85
  86
  87 void AliAnalysisTaskESDfilter::UserExec(Option_t */*option*/)
  88 {
  89 // Execute analysis for current event
  90 //
  91
  92   Long64_t ientry = Entry();
  93   if (fDebug > 0) printf("Filter: Analysing event # %5d\n", (Int_t) ientry);
  94   if (fHighPthreshold == 0) AliInfo("detector PID signals are stored in each track");
  95   if (!fPtshape) AliInfo("detector PID signals are not stored below the pt threshold");
  96
  97   ConvertESDtoAOD();
  98 }
  99
 100 void AliAnalysisTaskESDfilter::ConvertESDtoAOD() {
 101     // ESD Filter analysis task executed for each event
 102
 103     AliESDEvent* esd = dynamic_cast<AliESDEvent*>(InputEvent());
 104     AliESD* old = esd->GetAliESDOld();
 105
 106     // Fetch Stack for debuggging if available
 107     AliStack *pStack = 0;
 108     AliMCEventHandler *mcH = 0;
 109     if(MCEvent()){
 110       pStack = MCEvent()->Stack();
 111       mcH = (AliMCEventHandler*) ((AliAnalysisManager::GetAnalysisManager())->GetMCtruthEventHandler());
 112     }
 113     // set arrays and pointers
 114     Float_t posF[3];
 115     Double_t pos[3];
 116     Double_t p[3];
 117     Double_t p_pos[3];
 118     Double_t p_neg[3];
 119     Double_t p_pos_atv0[3];
 120     Double_t p_neg_atv0[3];
 121     Double_t covVtx[6];
 122     Double_t covTr[21];
 123     Double_t pid[10];
 124
 125     for (Int_t i = 0; i < 6; i++)  covVtx[i] = 0.;
 126     for (Int_t i = 0; i < 21; i++) covTr [i] = 0.;
 127
 128
 129     // loop over events and fill them
 130
 131     // Multiplicity information needed by the header (to be revised!)
 132     Int_t nTracks    = esd->GetNumberOfTracks();
 133     //    if (fDebug > 0) printf("-------------------Bo: Number of ESD tracks %d \n",nTracks);
 134
 135     Int_t nPosTracks = 0;
 136 //    for (Int_t iTrack = 0; iTrack < nTracks; ++iTrack)
 137 //      if (esd->GetTrack(iTrack)->GetSign()> 0) nPosTracks++;
 138
 139     // Update the header
 140
 141     AliAODHeader* header = AODEvent()->GetHeader();
 142     header->SetRunNumber(esd->GetRunNumber());
 143     if (old) {
 144         header->SetBunchCrossNumber(0);
 145         header->SetOrbitNumber(0);
 146         header->SetPeriodNumber(0);
 147         header->SetEventType(0);
 148         header->SetMuonMagFieldScale(-999.); // FIXME
 149         header->SetCentrality(-999.);        // FIXME
 150     } else {
 151         header->SetBunchCrossNumber(esd->GetBunchCrossNumber());
 152         header->SetOrbitNumber(esd->GetOrbitNumber());
 153         header->SetPeriodNumber(esd->GetPeriodNumber());
 154         header->SetEventType(esd->GetEventType());
 155         header->SetMuonMagFieldScale(-999.); // FIXME
 156         header->SetCentrality(-999.);        // FIXME
 157     }
 158
 159     header->SetTriggerMask(esd->GetTriggerMask());
 160     header->SetTriggerCluster(esd->GetTriggerCluster());
 161     header->SetMagneticField(esd->GetMagneticField());
 162     header->SetZDCN1Energy(esd->GetZDCN1Energy());
 163     header->SetZDCP1Energy(esd->GetZDCP1Energy());
 164     header->SetZDCN2Energy(esd->GetZDCN2Energy());
 165     header->SetZDCP2Energy(esd->GetZDCP2Energy());
 166     header->SetZDCEMEnergy(esd->GetZDCEMEnergy(0),esd->GetZDCEMEnergy(1));
 167     Float_t diamxy[2]={esd->GetDiamondX(),esd->GetDiamondY()};
 168     Float_t diamcov[3]; esd->GetDiamondCovXY(diamcov);
 169     header->SetDiamond(diamxy,diamcov);
 170 //
 171 //
 172     Int_t nV0s      = esd->GetNumberOfV0s();
 173     Int_t nCascades = esd->GetNumberOfCascades();
 174     Int_t nKinks    = esd->GetNumberOfKinks();
 175     Int_t nVertices = nV0s + 2*nCascades /*could lead to two vertices, one V0 and the Xi */+ nKinks + 1 /* = prim. vtx*/;
 176     Int_t nJets     = 0;
 177     Int_t nCaloClus = esd->GetNumberOfCaloClusters();
 178     Int_t nFmdClus  = 0;
 179     Int_t nPmdClus  = esd->GetNumberOfPmdTracks();
 180
 181     if (fDebug > 0)
 182         printf("   NV0=%d  NCASCADES=%d  NKINKS=%d\n", nV0s, nCascades, nKinks);
 183
 184     AODEvent()->ResetStd(nTracks, nVertices, nV0s+nCascades, nJets, nCaloClus, nFmdClus, nPmdClus);
 185
 186     AliAODTrack *aodTrack = 0x0;
 187     AliAODPid   *detpid   = 0x0;
 188     Double_t timezero = 0; //TO BE FIXED
 189     AliAODv0    *aodV0    = 0x0;
 190
 191     // RefArray to store the mapping between esd track number and newly created AOD-Track
 192     TRefArray   *aodRefs = NULL;
 193     if (nTracks > 0) aodRefs = new TRefArray(nTracks);
 194
 195     // Array to take into account the tracks already added to the AOD
 196     Bool_t * usedTrack = NULL;
 197     if (nTracks>0) {
 198         usedTrack = new Bool_t[nTracks];
 199         for (Int_t iTrack=0; iTrack<nTracks; ++iTrack) usedTrack[iTrack]=kFALSE;
 200     }
 201     // Array to take into account the V0s already added to the AOD
 202     Bool_t * usedV0 = NULL;
 203     if (nV0s>0) {
 204         usedV0 = new Bool_t[nV0s];
 205         for (Int_t iV0=0; iV0<nV0s; ++iV0) usedV0[iV0]=kFALSE;
 206     }
 207     // Array to take into account the kinks already added to the AOD
 208     Bool_t * usedKink = NULL;
 209     if (nKinks>0) {
 210         usedKink = new Bool_t[nKinks];
 211         for (Int_t iKink=0; iKink<nKinks; ++iKink) usedKink[iKink]=kFALSE;
 212     }
 213
 214     // Access to the AOD container of vertices
 215     TClonesArray &vertices = *(AODEvent()->GetVertices());
 216     Int_t jVertices=0;
 217
 218     // Access to the AOD container of tracks
 219     TClonesArray &tracks = *(AODEvent()->GetTracks());
 220     Int_t jTracks=0;
 221
 222     // Access to the AOD container of V0s
 223     TClonesArray &V0s = *(AODEvent()->GetV0s());
 224     Int_t jV0s=0;
 225
 226     // Add primary vertex. The primary tracks will be defined
 227     // after the loops on the composite objects (V0, cascades, kinks)
 228     const AliESDVertex *vtx = esd->GetPrimaryVertex();
 229
 230     vtx->GetXYZ(pos); // position
 231     vtx->GetCovMatrix(covVtx); //covariance matrix
 232
 233     AliAODVertex * primary = new(vertices[jVertices++])
 234         AliAODVertex(pos, covVtx, vtx->GetChi2toNDF(), NULL, -1, AliAODVertex::kPrimary);
 235     if (fDebug > 0) primary->Print();
 236
 237     // Create vertices starting from the most complex objects
 238     Double_t chi2 = 0.;
 239
 240     // Cascades
 241     for (Int_t nCascade = 0; nCascade < nCascades; ++nCascade) {
 242         AliESDcascade *cascade = esd->GetCascade(nCascade);
 243
 244         cascade->GetXYZ(pos[0], pos[1], pos[2]);
 245
 246         if (!old) {
 247             chi2 = cascade->GetChi2Xi(); // = chi2/NDF since NDF = 2*2-3
 248             cascade->GetPosCovXi(covVtx);
 249         } else {
 250             chi2 = -999.;
 251             for (Int_t i = 0; i < 6; i++)  covVtx[i] = 0.;
 252         }
 253         // Add the cascade vertex
 254         AliAODVertex * vcascade = new(vertices[jVertices++]) AliAODVertex(pos,
 255                                                                           covVtx,
 256                                                                           chi2,
 257                                                                           primary,
 258                                                                           nCascade,
 259                                                                           AliAODVertex::kCascade);
 260
 261         primary->AddDaughter(vcascade);
 262
 263         // Add the V0 from the cascade. The ESD class have to be optimized...
 264         // Now we have to search for the corresponding Vo in the list of V0s
 265         // using the indeces of the positive and negative tracks
 266
 267         Int_t posFromV0 = cascade->GetPindex();
 268         Int_t negFromV0 = cascade->GetNindex();
 269
 270
 271         AliESDv0 * v0 = 0x0;
 272         Int_t indV0 = -1;
 273
 274         for (Int_t iV0=0; iV0<nV0s; ++iV0) {
 275
 276             v0 = esd->GetV0(iV0);
 277             Int_t posV0 = v0->GetPindex();
 278             Int_t negV0 = v0->GetNindex();
 279
 280             if (posV0==posFromV0 && negV0==negFromV0) {
 281                 indV0 = iV0;
 282                 break;
 283             }
 284         }
 285
 286         AliAODVertex * vV0FromCascade = 0x0;
 287
 288         if (indV0>-1 && !usedV0[indV0] ) {
 289
 290             // the V0 exists in the array of V0s and is not used
 291
 292             usedV0[indV0] = kTRUE;
 293
 294             v0->GetXYZ(pos[0], pos[1], pos[2]);
 295             if (!old) {
 296                 chi2 = v0->GetChi2V0();  // = chi2/NDF since NDF = 2*2-3
 297                 v0->GetPosCov(covVtx);
 298             } else {
 299                 chi2 = -999.;
 300                 for (Int_t i = 0; i < 6; i++)  covVtx[i] = 0.;
 301             }
 302
 303             vV0FromCascade = new(vertices[jVertices++]) AliAODVertex(pos,
 304                                                                      covVtx,
 305                                                                      chi2,
 306                                                                      vcascade,
 307                                                                      indV0,
 308                                                                      AliAODVertex::kV0);
 309         } else {
 310
 311             // the V0 doesn't exist in the array of V0s or was used
 312 //          cerr << "Error: event " << esd->GetEventNumberInFile() << " cascade " << nCascade
 313 //               << " The V0 " << indV0
 314 //               << " doesn't exist in the array of V0s or was used!" << endl;
 315
 316             cascade->GetXYZ(pos[0], pos[1], pos[2]);
 317
 318             if (!old) {
 319                 chi2 = v0->GetChi2V0();
 320                 cascade->GetPosCov(covVtx);
 321             } else {
 322                 chi2 = -999.;
 323                 for (Int_t i = 0; i < 6; i++)  covVtx[i] = 0.;
 324             }
 325
 326             vV0FromCascade = new(vertices[jVertices++]) AliAODVertex(pos,
 327                                                                      covVtx,
 328                                                                      chi2, // = chi2/NDF since NDF = 2*2-3 (AM)
 329                                                                      vcascade,
 330                                                                      indV0,
 331                                                                      AliAODVertex::kV0);
 332             vcascade->AddDaughter(vV0FromCascade);
 333         }
 334
 335         // Add the positive tracks from the V0
 336
 337         if (posFromV0>-1 && !usedTrack[posFromV0]) {
 338
 339             usedTrack[posFromV0] = kTRUE;
 340
 341             AliESDtrack *esdTrack = esd->GetTrack(posFromV0);
 342             esdTrack->GetPxPyPz(p_pos);
 343             esdTrack->GetXYZ(pos);
 344             esdTrack->GetCovarianceXYZPxPyPz(covTr);
 345             esdTrack->GetESDpid(pid);
 346             UInt_t selectInfo = 0;
 347             if (fTrackFilter) {
 348                 selectInfo = fTrackFilter->IsSelected(esdTrack);
 349             }
 350
 351             if(mcH)mcH->SelectParticle(esdTrack->GetLabel());
 352             vV0FromCascade->AddDaughter(aodTrack =
 353                                         new(tracks[jTracks++]) AliAODTrack(esdTrack->GetID(),
 354                                                                            esdTrack->GetLabel(),
 355                                                                            p_pos,
 356                                                                            kTRUE,
 357                                                                            pos,
 358                                                                            kFALSE,
 359                                                                            covTr,
 360                                                                            (Short_t)esdTrack->GetSign(),
 361                                                                            esdTrack->GetITSClusterMap(),
 362                                                                            pid,
 363                                                                            vV0FromCascade,
 364                                                                            kTRUE,  // check if this is right
 365                                                                            kFALSE, // check if this is right
 366                                                                            AliAODTrack::kSecondary,
 367                                                                            selectInfo)
 368                                         );
 369             aodRefs->AddAt(aodTrack, posFromV0);
 370
 371        if (esdTrack->GetSign() > 0) nPosTracks++;
 372             aodTrack->ConvertAliPIDtoAODPID();
 373             aodTrack->SetFlags(esdTrack->GetStatus());
 374             SetAODPID(esdTrack,aodTrack,detpid,timezero);
 375         }
 376         else {
 377 //          cerr << "Error: event " << esd->GetEventNumberInFile() << " cascade " << nCascade
 378 //               << " track " << posFromV0 << " has already been used!" << endl;
 379         }
 380
 381         // Add the negative tracks from the V0
 382
 383         if (negFromV0>-1 && !usedTrack[negFromV0]) {
 384
 385             usedTrack[negFromV0] = kTRUE;
 386
 387             AliESDtrack *esdTrack = esd->GetTrack(negFromV0);
 388             esdTrack->GetPxPyPz(p_neg);
 389             esdTrack->GetXYZ(pos);
 390             esdTrack->GetCovarianceXYZPxPyPz(covTr);
 391             esdTrack->GetESDpid(pid);
 392             UInt_t selectInfo = 0;
 393             if (fTrackFilter) selectInfo = fTrackFilter->IsSelected(esdTrack);
 394             if(mcH)mcH->SelectParticle(esdTrack->GetLabel());
 395             vV0FromCascade->AddDaughter(aodTrack =
 396                                         new(tracks[jTracks++]) AliAODTrack(esdTrack->GetID(),
 397                                                                            esdTrack->GetLabel(),
 398                                                                            p_neg,
 399                                                                            kTRUE,
 400                                                                            pos,
 401                                                                            kFALSE,
 402                                                                            covTr,
 403                                                                            (Short_t)esdTrack->GetSign(),
 404                                                                            esdTrack->GetITSClusterMap(),
 405                                                                            pid,
 406                                                                            vV0FromCascade,
 407                                                                            kTRUE,  // check if this is right
 408                                                                            kFALSE, // check if this is right
 409                                                                            AliAODTrack::kSecondary,
 410                                                                            selectInfo)
 411                                         );
 412             aodRefs->AddAt(aodTrack, negFromV0);
 413
 414        if (esdTrack->GetSign() > 0) nPosTracks++;
 415             aodTrack->ConvertAliPIDtoAODPID();
 416             aodTrack->SetFlags(esdTrack->GetStatus());
 417             SetAODPID(esdTrack,aodTrack,detpid,timezero);
 418         }
 419         else {
 420 //          cerr << "Error: event " << esd->GetEventNumberInFile() << " cascade " << nCascade
 421 //               << " track " << negFromV0 << " has already been used!" << endl;
 422         }
 423
 424         // add it to the V0 array as well
 425         Double_t d0[2] = { -999., -99.};
 426         // counting is probably wrong
 427         new(V0s[jV0s++]) AliAODv0(vV0FromCascade, -999., -99., p_pos, p_neg, d0); // to be refined
 428
 429         // Add the bachelor track from the cascade
 430
 431         Int_t bachelor = cascade->GetBindex();
 432
 433         if(bachelor>-1 && !usedTrack[bachelor]) {
 434
 435             usedTrack[bachelor] = kTRUE;
 436
 437             AliESDtrack *esdTrack = esd->GetTrack(bachelor);
 438             esdTrack->GetPxPyPz(p);
 439             esdTrack->GetXYZ(pos);
 440             esdTrack->GetCovarianceXYZPxPyPz(covTr);
 441             esdTrack->GetESDpid(pid);
 442             UInt_t selectInfo = 0;
 443             if (fTrackFilter) selectInfo = fTrackFilter->IsSelected(esdTrack);
 444
 445             if(mcH)mcH->SelectParticle(esdTrack->GetLabel());
 446             vcascade->AddDaughter(aodTrack =
 447                                   new(tracks[jTracks++]) AliAODTrack(esdTrack->GetID(),
 448                                                                      esdTrack->GetLabel(),
 449                                                                      p,
 450                                                                      kTRUE,
 451                                                                      pos,
 452                                                                      kFALSE,
 453                                                                      covTr,
 454                                                                      (Short_t)esdTrack->GetSign(),
 455                                                                      esdTrack->GetITSClusterMap(),
 456                                                                      pid,
 457                                                                      vcascade,
 458                                                                      kTRUE,  // check if this is right
 459                                                                      kFALSE, // check if this is right
 460                                                                      AliAODTrack::kSecondary,
 461                                                                      selectInfo)
 462                                   );
 463             aodRefs->AddAt(aodTrack, bachelor);
 464        if (esdTrack->GetSign() > 0) nPosTracks++;
 465             aodTrack->ConvertAliPIDtoAODPID();
 466             aodTrack->SetFlags(esdTrack->GetStatus());
 467             SetAODPID(esdTrack,aodTrack,detpid,timezero);
 468         }
 469         else {
 470 //          cerr << "Error: event " << esd->GetEventNumberInFile() << " cascade " << nCascade
 471 //               << " track " << bachelor << " has already been used!" << endl;
 472         }
 473
 474         // Add the primary track of the cascade (if any)
 475
 476     } // end of the loop on cascades
 477
 478     //
 479     // V0s
 480     //
 481
 482     for (Int_t nV0 = 0; nV0 < nV0s; ++nV0) {
 483
 484         if (usedV0[nV0]) continue; // skip if already added to the AOD
 485
 486         AliESDv0 *v0 = esd->GetV0(nV0);
 487         Int_t posFromV0 = v0->GetPindex();
 488         Int_t negFromV0 = v0->GetNindex();
 489         if (posFromV0 < 0 || negFromV0 < 0) continue;
 490
 491         // V0 selection
 492         //
 493         AliESDVertex *esdVtx = new AliESDVertex(*(esd->GetPrimaryVertex()));
 494
 495         AliESDtrack *esdV0Pos = esd->GetTrack(posFromV0);
 496         AliESDtrack *esdV0Neg = esd->GetTrack(negFromV0);
 497         TList v0objects;
 498         v0objects.AddAt(v0,                      0);
 499         v0objects.AddAt(esdV0Pos,                1);
 500         v0objects.AddAt(esdV0Neg,                2);
 501         v0objects.AddAt(esdVtx,                  3);
 502         UInt_t selectV0 = 0;
 503         if (fV0Filter) {
 504           selectV0 = fV0Filter->IsSelected(&v0objects);
 505           // this is a little awkward but otherwise the
 506           // list wants to access the pointer again when going out of scope
 507           delete v0objects.RemoveAt(3);
 508           if (!selectV0)
 509             continue;
 510         }
 511         else{
 512           delete v0objects.RemoveAt(3);
 513         }
 514
 515         v0->GetXYZ(pos[0], pos[1], pos[2]);
 516
 517         if (!old) {
 518             chi2 = v0->GetChi2V0(); // = chi2/NDF since NDF = 2*2-3
 519             v0->GetPosCov(covVtx);
 520         } else {
 521             chi2 = -999.;
 522             for (Int_t i = 0; i < 6; i++)  covVtx[i] = 0.;
 523         }
 524
 525
 526         AliAODVertex * vV0 =
 527           new(vertices[jVertices++]) AliAODVertex(pos,
 528                                                   covVtx,
 529                                                   chi2,
 530                                                   primary,
 531                                                   nV0,
 532                                                   AliAODVertex::kV0);
 533         primary->AddDaughter(vV0);
 534
 535
 536         Float_t  dcaPosToPrimVertexXYZ[2]   = { 999., 999.}; // ..[0] = in XY plane and ..[1] = in Z
 537         Float_t  dcaNegToPrimVertexXYZ[2]   = { 999., 999.}; // ..[0] = in XY plane and ..[1] = in Z
 538         Double_t dcaDaughterToPrimVertex[2] = { 999., 999.}; // ..[0] = Pos and ..[1] = Neg
 539
 540         Double_t  dcaV0Daughters      = v0->GetDcaV0Daughters();
 541         Double_t  dcaV0ToPrimVertex   = v0->GetD();
 542
 543         v0->GetPPxPyPz(p_pos_atv0[0],p_pos_atv0[1],p_pos_atv0[2]);
 544         v0->GetNPxPyPz(p_neg_atv0[0],p_neg_atv0[1],p_neg_atv0[2]);
 545
 546         // Add the positive tracks from the V0
 547
 548
 549         esdV0Pos->GetPxPyPz(p_pos);
 550         esdV0Pos->GetXYZ(pos);
 551         esdV0Pos->GetCovarianceXYZPxPyPz(covTr);
 552         esdV0Pos->GetESDpid(pid);
 553         esdV0Pos->GetImpactParameters(dcaPosToPrimVertexXYZ[0],dcaPosToPrimVertexXYZ[1]);
 554         if (!usedTrack[posFromV0]) {
 555             usedTrack[posFromV0] = kTRUE;
 556             UInt_t selectInfo = 0;
 557             if (fTrackFilter) selectInfo = fTrackFilter->IsSelected(esdV0Pos);
 558             if(mcH)mcH->SelectParticle(esdV0Pos->GetLabel());
 559             aodTrack = new(tracks[jTracks++]) AliAODTrack(esdV0Pos->GetID(),
 560                                                           esdV0Pos->GetLabel(),
 561                                                           p_pos,
 562                                                           kTRUE,
 563                                                           pos,
 564                                                           kFALSE,
 565                                                           covTr,
 566                                                           (Short_t)esdV0Pos->GetSign(),
 567                                                           esdV0Pos->GetITSClusterMap(),
 568                                                           pid,
 569                                                           vV0,
 570                                                           kTRUE,  // check if this is right
 571                                                           kFALSE, // check if this is right
 572                                                           AliAODTrack::kSecondary,
 573                                                           selectInfo);
 574             aodRefs->AddAt(aodTrack,posFromV0);
 575             //      if (fDebug > 0) printf("-------------------Bo: pos track from original pt %.3f \n",aodTrack->Pt());
 576             if (esdV0Pos->GetSign() > 0) nPosTracks++;
 577             aodTrack->ConvertAliPIDtoAODPID();
 578             aodTrack->SetFlags(esdV0Pos->GetStatus());
 579             SetAODPID(esdV0Pos,aodTrack,detpid,timezero);
 580         }
 581         else {
 582             aodTrack = dynamic_cast<AliAODTrack*>(aodRefs->At(posFromV0));
 583             //      if (fDebug > 0) printf("-------------------Bo pos track from refArray pt %.3f \n",aodTrack->Pt());
 584         }
 585         vV0->AddDaughter(aodTrack);
 586
 587         // Add the negative tracks from the V0
 588
 589         esdV0Neg->GetPxPyPz(p_neg);
 590         esdV0Neg->GetXYZ(pos);
 591         esdV0Neg->GetCovarianceXYZPxPyPz(covTr);
 592         esdV0Neg->GetESDpid(pid);
 593         esdV0Neg->GetImpactParameters(dcaNegToPrimVertexXYZ[0],dcaNegToPrimVertexXYZ[1]);
 594
 595         if (!usedTrack[negFromV0]) {
 596             usedTrack[negFromV0] = kTRUE;
 597             UInt_t selectInfo = 0;
 598             if (fTrackFilter) selectInfo = fTrackFilter->IsSelected(esdV0Neg);
 599             if(mcH)mcH->SelectParticle(esdV0Neg->GetLabel());
 600             aodTrack = new(tracks[jTracks++]) AliAODTrack(esdV0Neg->GetID(),
 601                                                           esdV0Neg->GetLabel(),
 602                                                           p_neg,
 603                                                           kTRUE,
 604                                                           pos,
 605                                                           kFALSE,
 606                                                           covTr,
 607                                                           (Short_t)esdV0Neg->GetSign(),
 608                                                           esdV0Neg->GetITSClusterMap(),
 609                                                           pid,
 610                                                           vV0,
 611                                                           kTRUE,  // check if this is right
 612                                                           kFALSE, // check if this is right
 613                                                           AliAODTrack::kSecondary,
 614                                                           selectInfo);
 615
 616             aodRefs->AddAt(aodTrack,negFromV0);
 617             //      if (fDebug > 0) printf("-------------------Bo: neg track from original pt %.3f \n",aodTrack->Pt());
 618             if (esdV0Neg->GetSign() > 0) nPosTracks++;
 619             aodTrack->ConvertAliPIDtoAODPID();
 620             aodTrack->SetFlags(esdV0Neg->GetStatus());
 621             SetAODPID(esdV0Neg,aodTrack,detpid,timezero);
 622         }
 623         else {
 624             aodTrack = dynamic_cast<AliAODTrack*>(aodRefs->At(negFromV0));
 625             //      if (fDebug > 0) printf("-------------------Bo neg track from refArray pt %.3f \n",aodTrack->Pt());
 626         }
 627         vV0->AddDaughter(aodTrack);
 628         dcaDaughterToPrimVertex[0] =
 629             TMath::Sqrt(dcaPosToPrimVertexXYZ[0]*dcaPosToPrimVertexXYZ[0]
 630                         +dcaPosToPrimVertexXYZ[1]*dcaPosToPrimVertexXYZ[1]);
 631         dcaDaughterToPrimVertex[1] =
 632             TMath::Sqrt(dcaNegToPrimVertexXYZ[0]*dcaNegToPrimVertexXYZ[0]
 633                         +dcaNegToPrimVertexXYZ[1]*dcaNegToPrimVertexXYZ[1]);
 634         // add it to the V0 array as well
 635         aodV0 = new(V0s[jV0s++])
 636             AliAODv0(vV0, dcaV0Daughters, dcaV0ToPrimVertex, p_pos_atv0, p_neg_atv0, dcaDaughterToPrimVertex); // to be refined
 637         // set the aod v0 on-the-fly status
 638         aodV0->SetOnFlyStatus(v0->GetOnFlyStatus());
 639     }
 640     V0s.Expand(jV0s);
 641     // end of the loop on V0s
 642
 643     // Kinks: it is a big mess the access to the information in the kinks
 644     // The loop is on the tracks in order to find the mother and daugther of each kink
 645
 646
 647     for (Int_t iTrack=0; iTrack<nTracks; ++iTrack) {
 648
 649         AliESDtrack * esdTrack = esd->GetTrack(iTrack);
 650
 651         Int_t ikink = esdTrack->GetKinkIndex(0);
 652
 653         if (ikink && nKinks) {
 654             // Negative kink index: mother, positive: daughter
 655
 656             // Search for the second track of the kink
 657
 658             for (Int_t jTrack = iTrack+1; jTrack<nTracks; ++jTrack) {
 659
 660                 AliESDtrack * esdTrack1 = esd->GetTrack(jTrack);
 661
 662                 Int_t jkink = esdTrack1->GetKinkIndex(0);
 663
 664                 if ( TMath::Abs(ikink)==TMath::Abs(jkink) ) {
 665
 666                     // The two tracks are from the same kink
 667
 668                     if (usedKink[TMath::Abs(ikink)-1]) continue; // skip used kinks
 669
 670                     Int_t imother = -1;
 671                     Int_t idaughter = -1;
 672
 673                     if (ikink<0 && jkink>0) {
 674
 675                         imother = iTrack;
 676                         idaughter = jTrack;
 677                     }
 678                     else if (ikink>0 && jkink<0) {
 679
 680                         imother = jTrack;
 681                         idaughter = iTrack;
 682                     }
 683                     else {
 684 //                      cerr << "Error: Wrong combination of kink indexes: "
 685 //                           << ikink << " " << jkink << endl;
 686                         continue;
 687                     }
 688
 689                     // Add the mother track if it passed primary track selection cuts
 690
 691                     AliAODTrack * mother = NULL;
 692
 693                     UInt_t selectInfo = 0;
 694                     if (fTrackFilter) {
 695                         selectInfo = fTrackFilter->IsSelected(esd->GetTrack(imother));
 696                         if (!selectInfo) continue;
 697                     }
 698
 699                     if (!usedTrack[imother]) {
 700
 701                         usedTrack[imother] = kTRUE;
 702
 703                         AliESDtrack *esdTrackM = esd->GetTrack(imother);
 704                         esdTrackM->GetPxPyPz(p);
 705                         esdTrackM->GetXYZ(pos);
 706                         esdTrackM->GetCovarianceXYZPxPyPz(covTr);
 707                         esdTrackM->GetESDpid(pid);
 708                         if(mcH)mcH->SelectParticle(esdTrackM->GetLabel());
 709                         mother =
 710                             new(tracks[jTracks++]) AliAODTrack(esdTrackM->GetID(),
 711                                                                esdTrackM->GetLabel(),
 712                                                                p,
 713                                                                kTRUE,
 714                                                                pos,
 715                                                                kFALSE,
 716                                                                covTr,
 717                                                                (Short_t)esdTrackM->GetSign(),
 718                                                                esdTrackM->GetITSClusterMap(),
 719                                                                pid,
 720                                                                primary,
 721                                                                kTRUE, // check if this is right
 722                                                                kTRUE, // check if this is right
 723                                                                AliAODTrack::kPrimary,
 724                                                                selectInfo);
 725                         aodRefs->AddAt(mother, imother);
 726
 727                         if (esdTrackM->GetSign() > 0) nPosTracks++;
 728                         mother->SetFlags(esdTrackM->GetStatus());
 729                         mother->ConvertAliPIDtoAODPID();
 730                         primary->AddDaughter(mother);
 731                         mother->ConvertAliPIDtoAODPID();
 732                         SetAODPID(esdTrackM,mother,detpid,timezero);
 733                     }
 734                     else {
 735 //                      cerr << "Error: event " << esd->GetEventNumberInFile() << " kink " << TMath::Abs(ikink)-1
 736 //                           << " track " << imother << " has already been used!" << endl;
 737                   }
 738
 739                     // Add the kink vertex
 740                     AliESDkink * kink = esd->GetKink(TMath::Abs(ikink)-1);
 741
 742                     AliAODVertex * vkink =
 743                         new(vertices[jVertices++]) AliAODVertex(kink->GetPosition(),
 744                                                                 NULL,
 745                                                                 0.,
 746                                                                 mother,
 747                                                                 esdTrack->GetID(),  // This is the track ID of the mother's track!
 748                                                                 AliAODVertex::kKink);
 749                     // Add the daughter track
 750
 751                     AliAODTrack * daughter = NULL;
 752
 753                     if (!usedTrack[idaughter]) {
 754
 755                         usedTrack[idaughter] = kTRUE;
 756
 757                         AliESDtrack *esdTrackD = esd->GetTrack(idaughter);
 758                         esdTrackD->GetPxPyPz(p);
 759                         esdTrackD->GetXYZ(pos);
 760                         esdTrackD->GetCovarianceXYZPxPyPz(covTr);
 761                         esdTrackD->GetESDpid(pid);
 762                         selectInfo = 0;
 763                         if (fTrackFilter) selectInfo = fTrackFilter->IsSelected(esdTrackD);
 764                         if(mcH)mcH->SelectParticle(esdTrackD->GetLabel());
 765                         daughter =
 766                             new(tracks[jTracks++]) AliAODTrack(esdTrackD->GetID(),
 767                                                                esdTrackD->GetLabel(),
 768                                                                p,
 769                                                                kTRUE,
 770                                                                pos,
 771                                                                kFALSE,
 772                                                                covTr,
 773                                                                (Short_t)esdTrackD->GetSign(),
 774                                                                esdTrackD->GetITSClusterMap(),
 775                                                                pid,
 776                                                                vkink,
 777                                                                kTRUE, // check if this is right
 778                                                                kTRUE, // check if this is right
 779                                                                AliAODTrack::kSecondary,
 780                                                                selectInfo);
 781
 782                         aodRefs->AddAt(daughter, idaughter);
 783
 784                         if (esdTrackD->GetSign() > 0) nPosTracks++;
 785                         daughter->SetFlags(esdTrackD->GetStatus());
 786                         daughter->ConvertAliPIDtoAODPID();
 787                         vkink->AddDaughter(daughter);
 788                         daughter->ConvertAliPIDtoAODPID();
 789                        SetAODPID(esdTrackD,daughter,detpid,timezero);
 790                     }
 791                     else {
 792 //                      cerr << "Error: event " << esd->GetEventNumberInFile() << " kink " << TMath::Abs(ikink)-1
 793 //                           << " track " << idaughter << " has already been used!" << endl;
 794                     }
 795                 }
 796             }
 797         }
 798     }
 799
 800
 801     // Tracks (primary and orphan)
 802
 803     if (fDebug > 0) printf("NUMBER OF ESD TRACKS %5d\n", nTracks);
 804
 805     for (Int_t nTrack = 0; nTrack < nTracks; ++nTrack) {
 806
 807
 808         if (usedTrack[nTrack]) continue;
 809
 810         AliESDtrack *esdTrack = esd->GetTrack(nTrack);
 811         UInt_t selectInfo = 0;
 812         //
 813         // Track selection
 814         if (fTrackFilter) {
 815             selectInfo = fTrackFilter->IsSelected(esdTrack);
 816             if (!selectInfo) continue;
 817         }
 818
 819         //
 820         esdTrack->GetPxPyPz(p);
 821         esdTrack->GetXYZ(pos);
 822         esdTrack->GetCovarianceXYZPxPyPz(covTr);
 823         esdTrack->GetESDpid(pid);
 824         if(mcH)mcH->SelectParticle(esdTrack->GetLabel());
 825         primary->AddDaughter(aodTrack =
 826                              new(tracks[jTracks++]) AliAODTrack(esdTrack->GetID(),
 827                                                                 esdTrack->GetLabel(),
 828                                                                 p,
 829                                                                 kTRUE,
 830                                                                 pos,
 831                                                                 kFALSE,
 832                                                                 covTr,
 833                                                                 (Short_t)esdTrack->GetSign(),
 834                                                                 esdTrack->GetITSClusterMap(),
 835                                                                 pid,
 836                                                                 primary,
 837                                                                 kTRUE, // check if this is right
 838                                                                 kTRUE, // check if this is right
 839                                                                 AliAODTrack::kPrimary,
 840                                                                 selectInfo)
 841                              );
 842         aodRefs->AddAt(aodTrack, nTrack);
 843
 844         if (esdTrack->GetSign() > 0) nPosTracks++;
 845         aodTrack->SetFlags(esdTrack->GetStatus());
 846         aodTrack->ConvertAliPIDtoAODPID();
 847         SetAODPID(esdTrack,aodTrack,detpid,timezero);
 848     } // end of loop on tracks
 849
 850     // Update number of AOD tracks in header at the end of track loop (M.G.)
 851     header->SetRefMultiplicity(jTracks);
 852     header->SetRefMultiplicityPos(nPosTracks);
 853     header->SetRefMultiplicityNeg(jTracks - nPosTracks);
 854     if (fDebug > 0)
 855       printf("   NAODTRACKS=%d  NPOS=%d  NNEG=%d\n", jTracks, nPosTracks, jTracks - nPosTracks);
 856     // Do not shrink the array of tracks - other filters may add to it (M.G)
 857 //    tracks.Expand(jTracks); // remove 'empty slots' due to unwritten tracks
 858
 859     // Access to the AOD container of PMD clusters
 860     TClonesArray &pmdClusters = *(AODEvent()->GetPmdClusters());
 861     Int_t jPmdClusters=0;
 862
 863     for (Int_t iPmd = 0; iPmd < nPmdClus; ++iPmd) {
 864       // file pmd clusters, to be revised!
 865       AliESDPmdTrack *pmdTrack = esd->GetPmdTrack(iPmd);
 866       Int_t nLabel = 0;
 867       Int_t *label = 0x0;
 868       Double_t posPmd[3] = { pmdTrack->GetClusterX(), pmdTrack->GetClusterY(), pmdTrack->GetClusterZ()};
 869       Double_t pidPmd[9] = { 0., 0., 0., 0., 0., 0., 0., 0., 0. }; // to be revised!
 870       // type not set!
 871       // assoc cluster not set
 872       new(pmdClusters[jPmdClusters++]) AliAODPmdCluster(iPmd, nLabel, label, pmdTrack->GetClusterADC(), posPmd, pidPmd);
 873     }
 874
 875     // Access to the AOD container of clusters
 876     TClonesArray &caloClusters = *(AODEvent()->GetCaloClusters());
 877     Int_t jClusters=0;
 878
 879     for (Int_t iClust=0; iClust<nCaloClus; ++iClust) {
 880
 881       AliESDCaloCluster * cluster = esd->GetCaloCluster(iClust);
 882
 883       Int_t id        = cluster->GetID();
 884       Int_t nLabel    = cluster->GetNLabels();
 885       TArrayI* labels = cluster->GetLabels();
 886       Int_t *label = 0;
 887       if (labels){
 888         label = (cluster->GetLabels())->GetArray();
 889         for(int i = 0;i < labels->GetSize();++i){
 890           if(mcH)mcH->SelectParticle(label[i]);
 891         }
 892       }
 893
 894       Float_t energy = cluster->E();
 895       cluster->GetPosition(posF);
 896       Char_t ttype = AliAODCluster::kUndef;
 897
 898       if (cluster->GetClusterType() == AliESDCaloCluster::kPHOSCluster) {
 899         ttype=AliAODCluster::kPHOSNeutral;
 900       }
 901       else if (cluster->GetClusterType() == AliESDCaloCluster::kEMCALClusterv1) {
 902         ttype = AliAODCluster::kEMCALClusterv1;
 903       }
 904
 905
 906       AliAODCaloCluster *caloCluster = new(caloClusters[jClusters++]) AliAODCaloCluster(id,
 907                                                                                         nLabel,
 908                                                                                         label,
 909                                                                                         energy,
 910                                                                                         posF,
 911                                                                                         NULL,
 912                                                                                         ttype);
 913
 914       caloCluster->SetCaloCluster(cluster->GetDistanceToBadChannel(),
 915                                   cluster->GetClusterDisp(),
 916                                   cluster->GetM20(), cluster->GetM02(),
 917                                   cluster->GetEmcCpvDistance(),
 918                                   cluster->GetNExMax(),cluster->GetTOF()) ;
 919
 920       caloCluster->SetPIDFromESD(cluster->GetPid());
 921       caloCluster->SetNCells(cluster->GetNCells());
 922       caloCluster->SetCellsAbsId(cluster->GetCellsAbsId());
 923       caloCluster->SetCellsAmplitudeFraction(cluster->GetCellsAmplitudeFraction());
 924
 925       TArrayI* matchedT =       cluster->GetTracksMatched();
 926       if (matchedT && cluster->GetTrackMatched() >= 0) {
 927         for (Int_t im = 0; im < matchedT->GetSize(); im++) {
 928             Int_t iESDtrack = matchedT->At(im);;
 929             if (aodRefs->At(iESDtrack) != 0) {
 930                 caloCluster->AddTrackMatched((AliAODTrack*)aodRefs->At(iESDtrack));
 931             }
 932         }
 933       }
 934
 935     }
 936     caloClusters.Expand(jClusters); // resize TObjArray to 'remove' slots for pseudo clusters
 937     // end of loop on calo clusters
 938
 939     // fill EMCAL cell info
 940     if (esd->GetEMCALCells()) { // protection against missing ESD information
 941       AliESDCaloCells &esdEMcells = *(esd->GetEMCALCells());
 942       Int_t nEMcell = esdEMcells.GetNumberOfCells() ;
 943
 944       AliAODCaloCells &aodEMcells = *(AODEvent()->GetEMCALCells());
 945       aodEMcells.CreateContainer(nEMcell);
 946       aodEMcells.SetType(AliAODCaloCells::kEMCAL);
 947       for (Int_t iCell = 0; iCell < nEMcell; iCell++) {
 948         aodEMcells.SetCell(iCell,esdEMcells.GetCellNumber(iCell),esdEMcells.GetAmplitude(iCell));
 949       }
 950       aodEMcells.Sort();
 951     }
 952
 953     // fill PHOS cell info
 954     if (esd->GetPHOSCells()) { // protection against missing ESD information
 955       AliESDCaloCells &esdPHcells = *(esd->GetPHOSCells());
 956       Int_t nPHcell = esdPHcells.GetNumberOfCells() ;
 957
 958       AliAODCaloCells &aodPHcells = *(AODEvent()->GetPHOSCells());
 959       aodPHcells.CreateContainer(nPHcell);
 960       aodPHcells.SetType(AliAODCaloCells::kPHOS);
 961       for (Int_t iCell = 0; iCell < nPHcell; iCell++) {
 962         aodPHcells.SetCell(iCell,esdPHcells.GetCellNumber(iCell),esdPHcells.GetAmplitude(iCell));
 963       }
 964       aodPHcells.Sort();
 965     }
 966
 967     // tracklets
 968     AliAODTracklets &SPDTracklets = *(AODEvent()->GetTracklets());
 969     const AliMultiplicity *mult = esd->GetMultiplicity();
 970     if (mult) {
 971       if (mult->GetNumberOfTracklets()>0) {
 972         SPDTracklets.CreateContainer(mult->GetNumberOfTracklets());
 973
 974         for (Int_t n=0; n<mult->GetNumberOfTracklets(); n++) {
 975           if(mcH){
 976             mcH->SelectParticle(mult->GetLabel(n, 0));
 977             mcH->SelectParticle(mult->GetLabel(n, 1));
 978           }
 979           SPDTracklets.SetTracklet(n, mult->GetTheta(n), mult->GetPhi(n), mult->GetDeltaPhi(n), mult->GetLabel(n, 0),mult->GetLabel(n, 1));
 980         }
 981       }
 982     } else {
 983       //Printf("ERROR: AliMultiplicity could not be retrieved from ESD");
 984     }
 985
 986     delete [] usedTrack;
 987     delete [] usedV0;
 988     delete [] usedKink;
 989     delete    aodRefs;
 990
 991     return;
 992 }
 993
 994
 995 void AliAnalysisTaskESDfilter::SetAODPID(AliESDtrack *esdtrack, AliAODTrack *aodtrack, AliAODPid *detpid, Double_t timezero)
 996 {
 997   //
 998   // Setter for the raw PID detector signals
 999   //
1000
1001   if(esdtrack->Pt()>fHighPthreshold) {
1002     detpid = new AliAODPid();
1003     SetDetectorRawSignals(detpid,esdtrack,timezero);
1004     aodtrack->SetDetPID(detpid);
1005   } else {
1006     if(fPtshape){
1007       if(esdtrack->Pt()> fPtshape->GetXmin()){
1008         Double_t y = fPtshape->Eval(esdtrack->Pt())/fPtshape->Eval(fHighPthreshold);
1009         if(gRandom->Rndm(0)<1./y){
1010           detpid = new AliAODPid();
1011           SetDetectorRawSignals(detpid,esdtrack,timezero);
1012           aodtrack->SetDetPID(detpid);
1013         }//end rndm
1014       }//end if p < pmin
1015     }//end if p function
1016   }// end else
1017 }
1018
1019 void AliAnalysisTaskESDfilter::SetDetectorRawSignals(AliAODPid *aodpid, AliESDtrack *track, Double_t timezero)
1020 {
1021 //
1022 //assignment of the detector signals (AliXXXesdPID inspired)
1023 //
1024  if(!track){
1025  AliInfo("no ESD track found. .....exiting");
1026  return;
1027  }
1028
1029  aodpid->SetITSsignal(track->GetITSsignal());
1030  aodpid->SetTPCsignal(track->GetTPCsignal());
1031  //n TRD planes = 6
1032
1033  Int_t nslices = track->GetNumberOfTRDslices()*6;
1034  Double_t *trdslices = new Double_t[nslices];
1035  for(Int_t iSl =0; iSl < track->GetNumberOfTRDslices(); iSl++) {
1036      for(Int_t iPl =0; iPl<6; iPl++) trdslices[iPl*track->GetNumberOfTRDslices()+iSl] = track->GetTRDslice(iPl,iSl);
1037     }
1038
1039
1040  aodpid->SetTRDsignal(track->GetNumberOfTRDslices()*6,trdslices);
1041  Double_t times[AliAODPid::kSPECIES]; track->GetIntegratedTimes(times);
1042  aodpid->SetIntegratedTimes(times);
1043
1044  aodpid->SetTOFsignal(track->GetTOFsignal()-timezero); // to be fixed
1045  aodpid->SetHMPIDsignal(track->GetHMPIDsignal());
1046
1047 }
1048
1049 void AliAnalysisTaskESDfilter::Terminate(Option_t */*option*/)
1050 {
1051 // Terminate analysis
1052 //
1053     if (fDebug > 1) printf("AnalysisESDfilter: Terminate() \n");
1054 }
1055
1056 void  AliAnalysisTaskESDfilter::PrintMCInfo(AliStack *pStack,Int_t label){
1057   if(!pStack)return;
1058   label = TMath::Abs(label);
1059   TParticle *part = pStack->Particle(label);
1060   Printf("########################");
1061   Printf("%s:%d %d UniqueID %d PDG %d P %3.3f",(char*)__FILE__,__LINE__,label,part->GetUniqueID(),part->GetPdgCode(),part->P());
1062   part->Print();
1063   TParticle* mother = part;
1064   Int_t imo = part->GetFirstMother();
1065   Int_t nprim = pStack->GetNprimary();
1066   //  while((imo >= nprim) && (mother->GetUniqueID() == 4)) {
1067   while((imo >= nprim)) {
1068     mother =  pStack->Particle(imo);
1069     Printf("Mother %s:%d Label %d UniqueID %d PDG %d P %3.3f",(char*)__FILE__,__LINE__,imo,mother->GetUniqueID(),mother->GetPdgCode(),mother->P());
1070     mother->Print();
1071     imo =  mother->GetFirstMother();
1072   }
1073   Printf("########################");
1074 }