PWG3/vertexingHF/AliAnalysisVertexingHF.cxx

   1 /**************************************************************************
   2  * Copyright(c) 1998-2007, ALICE Experiment at CERN, All rights reserved. *
   3  *                                                                        *
   4  * Author: The ALICE Off-line Project.                                    *
   5  * Contributors are mentioned in the code where appropriate.              *
   6  *                                                                        *
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  10  * copies and that both the copyright notice and this permission notice   *
  11  * appear in the supporting documentation. The authors make no claims     *
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  13  * provided "as is" without express or implied warranty.                  *
  14  **************************************************************************/
  15
  16 //----------------------------------------------------------------------------
  17 //    Implementation of the heavy-flavour vertexing analysis class
  18 // Candidates are stored in the AOD as objects deriving from AliAODRecoDecay.
  19 // To be used as a task of AliAnalysisManager by means of the interface
  20 // class AliAnalysisTaskSEVertexingHF.
  21 // An example of usage in the macro AliAnalysisTaskSEVertexingHFTest.C.
  22 //
  23 //  Origin: E.Bruna, G.E.Bruno, A.Dainese, F.Prino, R.Romita, X.M.Zhang
  24 //  Contact: andrea.dainese@lnl.infn.it
  25 //----------------------------------------------------------------------------
  26 #include <TFile.h>
  27 #include <TDatabasePDG.h>
  28 #include <TString.h>
  29 #include "AliLog.h"
  30 #include "AliVEvent.h"
  31 #include "AliVVertex.h"
  32 #include "AliVTrack.h"
  33 #include "AliVertexerTracks.h"
  34 #include "AliKFVertex.h"
  35 #include "AliESDEvent.h"
  36 #include "AliESDVertex.h"
  37 #include "AliESDtrack.h"
  38 #include "AliESDtrackCuts.h"
  39 #include "AliAODEvent.h"
  40 #include "AliAODRecoDecay.h"
  41 #include "AliAODRecoDecayHF.h"
  42 #include "AliAODRecoDecayHF2Prong.h"
  43 #include "AliAODRecoDecayHF3Prong.h"
  44 #include "AliAODRecoDecayHF4Prong.h"
  45 #include "AliAODRecoCascadeHF.h"
  46 #include "AliAnalysisFilter.h"
  47 #include "AliAnalysisVertexingHF.h"
  48
  49 ClassImp(AliAnalysisVertexingHF)
  50
  51 //----------------------------------------------------------------------------
  52 AliAnalysisVertexingHF::AliAnalysisVertexingHF():
  53 fInputAOD(kFALSE),
  54 fAODMap(0),
  55 fBzkG(0.),
  56 fSecVtxWithKF(kFALSE),
  57 fRecoPrimVtxSkippingTrks(kFALSE),
  58 fRmTrksFromPrimVtx(kFALSE),
  59 fV1(0x0),
  60 fD0toKpi(kTRUE),
  61 fJPSItoEle(kTRUE),
  62 f3Prong(kTRUE),
  63 f4Prong(kTRUE),
  64 fDstar(kTRUE),
  65 fTrackFilter(0x0),
  66 fTrackFilterSoftPi(0x0)
  67 {
  68   // Default constructor
  69
  70   SetD0toKpiCuts();
  71   SetBtoJPSICuts();
  72   SetDplusCuts();
  73   SetDsCuts();
  74   SetLcCuts();
  75   SetDstarCuts();
  76
  77 }
  78 //--------------------------------------------------------------------------
  79 AliAnalysisVertexingHF::AliAnalysisVertexingHF(const AliAnalysisVertexingHF &source) :
  80 TNamed(source),
  81 fInputAOD(source.fInputAOD),
  82 fAODMap(source.fAODMap),
  83 fBzkG(source.fBzkG),
  84 fSecVtxWithKF(source.fSecVtxWithKF),
  85 fRecoPrimVtxSkippingTrks(source.fRecoPrimVtxSkippingTrks),
  86 fRmTrksFromPrimVtx(source.fRmTrksFromPrimVtx),
  87 fV1(source.fV1),
  88 fD0toKpi(source.fD0toKpi),
  89 fJPSItoEle(source.fJPSItoEle),
  90 f3Prong(source.f3Prong),
  91 f4Prong(source.f4Prong),
  92 fDstar(source.fDstar),
  93 fTrackFilter(source.fTrackFilter),
  94 fTrackFilterSoftPi(source.fTrackFilterSoftPi)
  95 {
  96   //
  97   // Copy constructor
  98   //
  99   for(Int_t i=0; i<9; i++)  fD0toKpiCuts[i]=source.fD0toKpiCuts[i];
 100   for(Int_t i=0; i<9; i++)  fBtoJPSICuts[i]=source.fBtoJPSICuts[i];
 101   for(Int_t i=0; i<12; i++) fDplusCuts[i]=source.fDplusCuts[i];
 102   for(Int_t i=0; i<13; i++) fDsCuts[i]=source.fDsCuts[i];
 103   for(Int_t i=0; i<12; i++) fLcCuts[i]=source.fLcCuts[i];
 104   for(Int_t i=0; i<5; i++)  fDstarCuts[i]=source.fDstarCuts[i];
 105 }
 106 //--------------------------------------------------------------------------
 107 AliAnalysisVertexingHF &AliAnalysisVertexingHF::operator=(const AliAnalysisVertexingHF &source)
 108 {
 109   //
 110   // assignment operator
 111   //
 112   if(&source == this) return *this;
 113   fInputAOD = source.fInputAOD;
 114   fBzkG = source.fBzkG;
 115   fSecVtxWithKF = source.fSecVtxWithKF;
 116   fRecoPrimVtxSkippingTrks = source.fRecoPrimVtxSkippingTrks;
 117   fRmTrksFromPrimVtx = source.fRmTrksFromPrimVtx;
 118   fV1 = source.fV1;
 119   fD0toKpi = source.fD0toKpi;
 120   fJPSItoEle = source.fJPSItoEle;
 121   f3Prong = source.f3Prong;
 122   f4Prong = source.f4Prong;
 123   fDstar = source.fDstar;
 124   fTrackFilter = source.fTrackFilter;
 125   fTrackFilterSoftPi = source.fTrackFilterSoftPi;
 126
 127   for(Int_t i=0; i<9; i++)  fD0toKpiCuts[i]=source.fD0toKpiCuts[i];
 128   for(Int_t i=0; i<9; i++)  fBtoJPSICuts[i]=source.fBtoJPSICuts[i];
 129   for(Int_t i=0; i<12; i++) fDplusCuts[i]=source.fDplusCuts[i];
 130   for(Int_t i=0; i<13; i++) fDsCuts[i]=source.fDsCuts[i];
 131   for(Int_t i=0; i<12; i++) fLcCuts[i]=source.fLcCuts[i];
 132   for(Int_t i=0; i<5; i++)  fDstarCuts[i]=source.fDstarCuts[i];
 133
 134   return *this;
 135 }
 136 //----------------------------------------------------------------------------
 137 AliAnalysisVertexingHF::~AliAnalysisVertexingHF() {
 138   // Destructor
 139   if(fV1) { delete fV1; fV1=0; }
 140   if(fTrackFilter) { delete fTrackFilter; fTrackFilter=0; }
 141   if(fTrackFilterSoftPi) { delete fTrackFilterSoftPi; fTrackFilterSoftPi=0; }
 142 }
 143 //----------------------------------------------------------------------------
 144 void AliAnalysisVertexingHF::FindCandidates(AliVEvent *event,
 145                                             TClonesArray *aodVerticesHFTClArr,
 146                                             TClonesArray *aodD0toKpiTClArr,
 147                                             TClonesArray *aodJPSItoEleTClArr,
 148                                             TClonesArray *aodCharm3ProngTClArr,
 149                                             TClonesArray *aodCharm4ProngTClArr,
 150                                             TClonesArray *aodDstarTClArr)
 151 {
 152   // Find heavy-flavour vertex candidates
 153   // Input:  ESD or AOD
 154   // Output: AOD (additional branches added)
 155
 156
 157   TString evtype = event->IsA()->GetName();
 158   fInputAOD = ((evtype=="AliAODEvent") ? kTRUE : kFALSE);
 159
 160   if(!aodVerticesHFTClArr) {
 161     printf("ERROR: no aodVerticesHFTClArr");
 162     return;
 163   }
 164   if(fD0toKpi && !aodD0toKpiTClArr) {
 165     printf("ERROR: no aodD0toKpiTClArr");
 166     return;
 167   }
 168   if(fJPSItoEle && !aodJPSItoEleTClArr) {
 169     printf("ERROR: no aodJPSItoEleTClArr");
 170     return;
 171   }
 172   if(f3Prong && !aodCharm3ProngTClArr) {
 173     printf("ERROR: no aodCharm3ProngTClArr");
 174     return;
 175   }
 176   if(f4Prong && !aodCharm4ProngTClArr) {
 177     printf("ERROR: no aodCharm4ProngTClArr");
 178     return;
 179   }
 180   if(fDstar && !aodDstarTClArr) {
 181     printf("ERROR: no aodDstarTClArr");
 182     return;
 183   }
 184
 185   // delete candidates from previous event and create references
 186   Int_t iVerticesHF=0,iD0toKpi=0,iJPSItoEle=0,i3Prong=0,i4Prong=0,iDstar=0;
 187   aodVerticesHFTClArr->Delete();
 188   iVerticesHF = aodVerticesHFTClArr->GetEntriesFast();
 189   TClonesArray &verticesHFRef = *aodVerticesHFTClArr;
 190   if(fD0toKpi)   {
 191     aodD0toKpiTClArr->Delete();
 192     iD0toKpi = aodD0toKpiTClArr->GetEntriesFast();
 193   }
 194   if(fJPSItoEle) {
 195     aodJPSItoEleTClArr->Delete();
 196     iJPSItoEle = aodJPSItoEleTClArr->GetEntriesFast();
 197   }
 198   if(f3Prong) {
 199     aodCharm3ProngTClArr->Delete();
 200     i3Prong = aodCharm3ProngTClArr->GetEntriesFast();
 201   }
 202   if(f4Prong) {
 203     aodCharm4ProngTClArr->Delete();
 204     i4Prong = aodCharm4ProngTClArr->GetEntriesFast();
 205   }
 206   if(fDstar) {
 207     aodDstarTClArr->Delete();
 208     iDstar = aodDstarTClArr->GetEntriesFast();
 209   }
 210   TClonesArray &aodD0toKpiRef      = *aodD0toKpiTClArr;
 211   TClonesArray &aodJPSItoEleRef    = *aodJPSItoEleTClArr;
 212   TClonesArray &aodCharm3ProngRef  = *aodCharm3ProngTClArr;
 213   TClonesArray &aodCharm4ProngRef  = *aodCharm4ProngTClArr;
 214   TClonesArray &aodDstarRef        = *aodDstarTClArr;
 215
 216
 217   AliAODRecoDecayHF2Prong *io2Prong  = 0;
 218   AliAODRecoDecayHF3Prong *io3Prong  = 0;
 219   AliAODRecoDecayHF4Prong *io4Prong  = 0;
 220   AliAODRecoCascadeHF     *ioCascade = 0;
 221
 222   Int_t    iTrkP1,iTrkP2,iTrkN1,iTrkN2,iTrkSoftPi,trkEntries;
 223   Double_t xdummy,ydummy,dcap1n1,dcap1n2,dcap2n1,dcap1p2,dcan1n2,dcaCasc;
 224   Bool_t   okD0=kFALSE,okJPSI=kFALSE,ok3Prong=kFALSE,ok4Prong=kFALSE;
 225   Bool_t   okDstar=kFALSE,okD0fromDstar=kFALSE;
 226   AliESDtrack *postrack1 = 0;
 227   AliESDtrack *postrack2 = 0;
 228   AliESDtrack *negtrack1 = 0;
 229   AliESDtrack *negtrack2 = 0;
 230   AliESDtrack *trackPi   = 0;
 231   Double_t dcaMax = fD0toKpiCuts[1];
 232   if(dcaMax < fBtoJPSICuts[1]) dcaMax=fBtoJPSICuts[1];
 233   if(dcaMax < fDplusCuts[11])  dcaMax=fDplusCuts[11];
 234   AliDebug(2,Form(" dca cut set to %f cm",dcaMax));
 235
 236
 237   // get Bz
 238   fBzkG = (Double_t)event->GetMagneticField();
 239
 240   trkEntries = (Int_t)event->GetNumberOfTracks();
 241   AliDebug(1,Form(" Number of tracks: %d",trkEntries));
 242
 243   if(trkEntries<2) {
 244     AliDebug(1,Form(" Not enough tracks: %d",trkEntries));
 245     return;
 246   }
 247
 248   const AliVVertex *primary = event->GetPrimaryVertex();
 249   if(!primary) {
 250     AliDebug(1," No primary vertex from tracks");
 251     return;
 252   }
 253   TString primTitle = primary->GetTitle();
 254   if(!primTitle.Contains("VertexerTracks")) {
 255     AliDebug(1," No primary vertex from tracks");
 256     return;
 257   }
 258
 259   // call function that applies sigle-track selection,
 260   // for displaced tracks and soft pions (both charges) for D*,
 261   // and retrieves primary vertex
 262   TObjArray seleTrksArray(trkEntries);
 263   UChar_t  *seleFlags = new UChar_t[trkEntries]; // bit 0: displaced, bit 1: softpi
 264   Int_t     nSeleTrks=0;
 265   SelectTracksAndCopyVertex(event,seleTrksArray,nSeleTrks,seleFlags);
 266
 267   AliDebug(1,Form(" Selected tracks: %d",nSeleTrks));
 268
 269   TObjArray *twoTrackArray1    = new TObjArray(2);
 270   TObjArray *twoTrackArray2    = new TObjArray(2);
 271   TObjArray *twoTrackArrayCasc = new TObjArray(2);
 272   TObjArray *threeTrackArray   = new TObjArray(3);
 273   TObjArray *fourTrackArray    = new TObjArray(4);
 274
 275   Double_t dispersion;
 276
 277   AliAODRecoDecayHF   *rd = 0;
 278   AliAODRecoCascadeHF *rc = 0;
 279
 280   // LOOP ON  POSITIVE  TRACKS
 281   for(iTrkP1=0; iTrkP1<nSeleTrks; iTrkP1++) {
 282     if(iTrkP1%1==0) AliDebug(1,Form("  1st loop on pos: track number %d of %d",iTrkP1,nSeleTrks));
 283     // get track from tracks array
 284     postrack1 = (AliESDtrack*)seleTrksArray.UncheckedAt(iTrkP1);
 285     if(postrack1->Charge()<0 || !TESTBIT(seleFlags[iTrkP1],kBitDispl)) continue;
 286     // LOOP ON  NEGATIVE  TRACKS
 287     for(iTrkN1=0; iTrkN1<nSeleTrks; iTrkN1++) {
 288       if(iTrkN1==iTrkP1) continue;
 289       if(iTrkN1%1==0) AliDebug(1,Form("    1st loop on neg: track number %d of %d",iTrkN1,nSeleTrks));
 290       // get track from tracks array
 291       negtrack1 = (AliESDtrack*)seleTrksArray.UncheckedAt(iTrkN1);
 292       if(negtrack1->Charge()>0 || !TESTBIT(seleFlags[iTrkN1],kBitDispl)) continue;
 293       // back to primary vertex
 294       postrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 295       negtrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 296       // DCA between the two tracks
 297       dcap1n1 = postrack1->GetDCA(negtrack1,fBzkG,xdummy,ydummy);
 298       if(dcap1n1>dcaMax) { negtrack1=0; continue; }
 299       // Vertexing
 300       twoTrackArray1->AddAt(postrack1,0);
 301       twoTrackArray1->AddAt(negtrack1,1);
 302       AliAODVertex *vertexp1n1 = ReconstructSecondaryVertex(twoTrackArray1,dispersion);
 303       if(!vertexp1n1) {
 304         twoTrackArray1->Clear();
 305         negtrack1=0;
 306         continue;
 307       }
 308       if(fD0toKpi || fJPSItoEle || fDstar) {
 309         io2Prong = Make2Prong(twoTrackArray1,event,vertexp1n1,dcap1n1,okD0,okJPSI,okD0fromDstar);
 310         if((fD0toKpi && okD0) || (fJPSItoEle && okJPSI)) {
 311           // add the vertex and the decay to the AOD
 312           AliAODVertex *v2Prong = new(verticesHFRef[iVerticesHF++])AliAODVertex(*vertexp1n1);
 313           if(fInputAOD) AddDaughterRefs(v2Prong,event,twoTrackArray1);
 314           if(okD0) {
 315             rd = new(aodD0toKpiRef[iD0toKpi++])AliAODRecoDecayHF2Prong(*io2Prong);
 316             rd->SetSecondaryVtx(v2Prong);
 317             v2Prong->SetParent(rd);
 318           }
 319           if(okJPSI) {
 320             rd = new(aodJPSItoEleRef[iJPSItoEle++])AliAODRecoDecayHF2Prong(*io2Prong);
 321             rd->SetSecondaryVtx(v2Prong);
 322             if(!okD0) v2Prong->SetParent(rd); // it cannot have two mothers ...
 323           }
 324         }
 325         if(fDstar && okD0fromDstar) {
 326           if(fInputAOD) { // write references in io2Prong
 327             AddDaughterRefs(vertexp1n1,event,twoTrackArray1);
 328             io2Prong->SetSecondaryVtx(vertexp1n1);
 329           }
 330           // create a track from the D0
 331           //AliESDtrack *trackD0 = new AliESDtrack(io2Prong); // to be uncommented after commit of AliAODRecoDecay : public AliVTrack
 332           AliESDtrack *trackD0 = new AliESDtrack(); // temporary, just to allow compilation
 333           // LOOP ON TRACKS THAT PASSED THE SOFT PION CUTS
 334           for(iTrkSoftPi=0; iTrkSoftPi<nSeleTrks; iTrkSoftPi++) {
 335             if(iTrkSoftPi==iTrkP1 || iTrkSoftPi==iTrkN1) continue;
 336             if(!TESTBIT(seleFlags[iTrkSoftPi],kBitSoftPi)) continue;
 337             if(iTrkSoftPi%1==0) AliDebug(1,Form("    1st loop on pi_s: track number %d of %d",iTrkSoftPi,nSeleTrks));
 338             // get track from tracks array
 339             trackPi = (AliESDtrack*)seleTrksArray.UncheckedAt(iTrkSoftPi);
 340
 341             trackPi->PropagateToDCA(fV1,fBzkG,kVeryBig);
 342             trackD0->PropagateToDCA(fV1,fBzkG,kVeryBig);
 343             // DCA between the two tracks
 344             dcaCasc = trackPi->GetDCA(trackD0,fBzkG,xdummy,ydummy);
 345             // Vertexing
 346             twoTrackArrayCasc->AddAt(trackPi,0);
 347             twoTrackArrayCasc->AddAt(trackD0,1);
 348             AliAODVertex *vertexCasc = ReconstructSecondaryVertex(twoTrackArrayCasc,dispersion);
 349             if(!vertexCasc) {
 350               twoTrackArrayCasc->Clear();
 351               trackPi=0;
 352               continue;
 353             }
 354             ioCascade = MakeCascade(twoTrackArrayCasc,event,vertexCasc,io2Prong,dcaCasc,okDstar);
 355             if(okDstar) {
 356               if(!okD0) {
 357                 // add the D0 to the AOD (if not already done)
 358                 AliAODVertex *v2Prong = new(verticesHFRef[iVerticesHF++])AliAODVertex(*vertexp1n1);
 359                 if(fInputAOD) AddDaughterRefs(v2Prong,event,twoTrackArray1);
 360                 rd = new(aodD0toKpiRef[iD0toKpi++])AliAODRecoDecayHF2Prong(*io2Prong);
 361                 rd->SetSecondaryVtx(v2Prong);
 362                 v2Prong->SetParent(rd);
 363                 okD0=kTRUE; // this is done to add it only once
 364               }
 365               // add the vertex and the cascade to the AOD
 366               AliAODVertex *vCasc = new(verticesHFRef[iVerticesHF++])AliAODVertex(*vertexCasc);
 367               if(fInputAOD) AddDaughterRefs(vCasc,event,twoTrackArrayCasc); // add the pion
 368               //vCasc->AddDaughter(rd); // doesn't work, because the D0 and the bachelor have different ROOT process ID
 369               rc = new(aodDstarRef[iDstar++])AliAODRecoCascadeHF(*ioCascade);
 370               rc->Set2Prong(rd); // add the D0
 371               rc->SetSecondaryVtx(vCasc);
 372               vCasc->SetParent(rc);
 373             }
 374             twoTrackArrayCasc->Clear();
 375             trackPi=0;
 376             ioCascade=NULL;
 377             delete vertexCasc;
 378           } // end loop on soft pi tracks
 379           if(trackD0) {delete trackD0; trackD0=NULL;}
 380         }
 381         io2Prong=NULL;
 382       }
 383       twoTrackArray1->Clear();
 384       if(!f3Prong && !f4Prong)  {
 385         negtrack1=0;
 386         delete vertexp1n1;
 387         continue;
 388       }
 389
 390
 391       // 2nd LOOP  ON  POSITIVE  TRACKS
 392       for(iTrkP2=iTrkP1+1; iTrkP2<nSeleTrks; iTrkP2++) {
 393         if(iTrkP2==iTrkP1 || iTrkP2==iTrkN1) continue;
 394         if(iTrkP2%1==0) AliDebug(1,Form("    2nd loop on pos: track number %d of %d",iTrkP2,nSeleTrks));
 395         // get track from tracks array
 396         postrack2 = (AliESDtrack*)seleTrksArray.UncheckedAt(iTrkP2);
 397         if(postrack2->Charge()<0 || !TESTBIT(seleFlags[iTrkP2],kBitDispl)) continue;
 398         // back to primary vertex
 399         postrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 400         postrack2->PropagateToDCA(fV1,fBzkG,kVeryBig);
 401         negtrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 402         //printf("********** %d %d %d\n",postrack1->GetID(),postrack2->GetID(),negtrack1->GetID());
 403         dcap2n1 = postrack2->GetDCA(negtrack1,fBzkG,xdummy,ydummy);
 404         if(dcap2n1>dcaMax) { postrack2=0; continue; }
 405         dcap1p2 = postrack2->GetDCA(postrack1,fBzkG,xdummy,ydummy);
 406         if(dcap1p2>dcaMax) { postrack2=0; continue; }
 407
 408         // Vertexing
 409         twoTrackArray2->AddAt(postrack2,0);
 410         twoTrackArray2->AddAt(negtrack1,1);
 411         AliAODVertex *vertexp2n1 = ReconstructSecondaryVertex(twoTrackArray2,dispersion);
 412         if(!vertexp2n1) {
 413           twoTrackArray2->Clear();
 414           postrack2=0;
 415           continue;
 416         }
 417         if(f3Prong) {
 418           threeTrackArray->AddAt(postrack1,0);
 419           threeTrackArray->AddAt(negtrack1,1);
 420           threeTrackArray->AddAt(postrack2,2);
 421           AliAODVertex* secVert3PrAOD = ReconstructSecondaryVertex(threeTrackArray,dispersion);
 422           io3Prong = Make3Prong(threeTrackArray,event,secVert3PrAOD,dispersion,vertexp1n1,vertexp2n1,dcap1n1,dcap2n1,dcap1p2,ok3Prong);
 423           if(ok3Prong) {
 424             AliAODVertex *v3Prong = new(verticesHFRef[iVerticesHF++])AliAODVertex(*secVert3PrAOD);
 425             if(fInputAOD) AddDaughterRefs(v3Prong,event,threeTrackArray);
 426             rd = new(aodCharm3ProngRef[i3Prong++])AliAODRecoDecayHF3Prong(*io3Prong);
 427             rd->SetSecondaryVtx(v3Prong);
 428             v3Prong->SetParent(rd);
 429           }
 430           if(io3Prong) io3Prong=NULL;
 431         }
 432         if(f4Prong) {
 433           // 3rd LOOP  ON  NEGATIVE  TRACKS (for 4 prong)
 434           for(iTrkN2=iTrkN1+1; iTrkN2<nSeleTrks; iTrkN2++) {
 435             if(iTrkN2==iTrkP1 || iTrkN2==iTrkP2 || iTrkN2==iTrkN1) continue;
 436             if(iTrkN2%1==0) AliDebug(1,Form("    3rd loop on neg: track number %d of %d",iTrkN2,nSeleTrks));
 437             // get track from tracks array
 438             negtrack2 = (AliESDtrack*)seleTrksArray.UncheckedAt(iTrkN2);
 439             if(negtrack2->Charge()>0 || !TESTBIT(seleFlags[iTrkN2],kBitDispl)) continue;
 440             // back to primary vertex
 441             postrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 442             postrack2->PropagateToDCA(fV1,fBzkG,kVeryBig);
 443             negtrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 444             negtrack2->PropagateToDCA(fV1,fBzkG,kVeryBig);
 445             dcap1n2 = postrack1->GetDCA(negtrack2,fBzkG,xdummy,ydummy);
 446             if(dcap1n2>dcaMax) { negtrack2=0; continue; }
 447             // Vertexing
 448             fourTrackArray->AddAt(postrack1,0);
 449             fourTrackArray->AddAt(negtrack1,1);
 450             fourTrackArray->AddAt(postrack2,2);
 451             fourTrackArray->AddAt(negtrack2,3);
 452             AliAODVertex* secVert4PrAOD = ReconstructSecondaryVertex(fourTrackArray,dispersion);
 453             io4Prong = Make4Prong(fourTrackArray,event,secVert4PrAOD,vertexp1n1,vertexp2n1,dcap1n1,dcap1n2,dcap2n1,ok4Prong);
 454             if(ok4Prong) {
 455               AliAODVertex *v4Prong = new(verticesHFRef[iVerticesHF++])AliAODVertex(*secVert4PrAOD);
 456               if(fInputAOD) AddDaughterRefs(v4Prong,event,fourTrackArray);
 457               rd = new(aodCharm4ProngRef[i4Prong++])AliAODRecoDecayHF4Prong(*io4Prong);
 458               rd->SetSecondaryVtx(v4Prong);
 459               v4Prong->SetParent(rd);
 460             }
 461             if(io4Prong) io4Prong=NULL;
 462             fourTrackArray->Clear();
 463             negtrack2 = 0;
 464           } // end loop on negative tracks
 465         }
 466         postrack2 = 0;
 467         delete vertexp2n1;
 468       } // end 2nd loop on positive tracks
 469       twoTrackArray2->Clear();
 470
 471       // 2nd LOOP  ON  NEGATIVE  TRACKS
 472       for(iTrkN2=iTrkN1+1; iTrkN2<nSeleTrks; iTrkN2++) {
 473         if(iTrkN2==iTrkP1 || iTrkN2==iTrkP2 || iTrkN2==iTrkN1) continue;
 474         if(iTrkN2%1==0) AliDebug(1,Form("    2nd loop on neg: track number %d of %d",iTrkN2,nSeleTrks));
 475         // get track from tracks array
 476         negtrack2 = (AliESDtrack*)seleTrksArray.UncheckedAt(iTrkN2);
 477         if(negtrack2->Charge()>0 || !TESTBIT(seleFlags[iTrkN2],kBitDispl)) continue;
 478         // back to primary vertex
 479         postrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 480         negtrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 481         negtrack2->PropagateToDCA(fV1,fBzkG,kVeryBig);
 482         //printf("********** %d %d %d\n",postrack1->GetID(),negtrack1->GetID(),negtrack2->GetID());
 483         dcap1n2 = postrack1->GetDCA(negtrack2,fBzkG,xdummy,ydummy);
 484         if(dcap1n2>dcaMax) { negtrack2=0; continue; }
 485         dcan1n2 = negtrack1->GetDCA(negtrack2,fBzkG,xdummy,ydummy);
 486         if(dcan1n2>dcaMax) { negtrack2=0; continue; }
 487
 488         // Vertexing
 489         twoTrackArray2->AddAt(postrack1,0);
 490         twoTrackArray2->AddAt(negtrack2,1);
 491
 492         AliAODVertex *vertexp1n2 = ReconstructSecondaryVertex(twoTrackArray2,dispersion);
 493         if(!vertexp1n2) {
 494           twoTrackArray2->Clear();
 495           negtrack2=0;
 496           continue;
 497         }
 498         if(f3Prong) {
 499           threeTrackArray->AddAt(negtrack1,0);
 500           threeTrackArray->AddAt(postrack1,1);
 501           threeTrackArray->AddAt(negtrack2,2);
 502           AliAODVertex* secVert3PrAOD = ReconstructSecondaryVertex(threeTrackArray,dispersion);
 503           io3Prong = Make3Prong(threeTrackArray,event,secVert3PrAOD,dispersion,vertexp1n1,vertexp1n2,dcap1n1,dcap1n2,dcan1n2,ok3Prong);
 504           if(ok3Prong) {
 505             AliAODVertex *v3Prong = new(verticesHFRef[iVerticesHF++])AliAODVertex(*secVert3PrAOD);
 506             if(fInputAOD) AddDaughterRefs(v3Prong,event,threeTrackArray);
 507             rd = new(aodCharm3ProngRef[i3Prong++])AliAODRecoDecayHF3Prong(*io3Prong);
 508             rd->SetSecondaryVtx(v3Prong);
 509             v3Prong->SetParent(rd);
 510           }
 511           if(io3Prong) io3Prong=NULL;
 512         }
 513         negtrack2 = 0;
 514         delete vertexp1n2;
 515       } // end 2nd loop on negative tracks
 516       twoTrackArray2->Clear();
 517
 518       negtrack1 = 0;
 519       delete vertexp1n1;
 520     } // end 1st loop on negative tracks
 521
 522     postrack1 = 0;
 523   }  // end 1st loop on positive tracks
 524
 525
 526   AliDebug(1,Form(" Total HF vertices in event = %d;",
 527                   (Int_t)aodVerticesHFTClArr->GetEntriesFast()));
 528   if(fD0toKpi) {
 529     AliDebug(1,Form(" D0->Kpi in event = %d;",
 530                     (Int_t)aodD0toKpiTClArr->GetEntriesFast()));
 531   }
 532   if(fJPSItoEle) {
 533     AliDebug(1,Form(" JPSI->ee in event = %d;",
 534                     (Int_t)aodJPSItoEleTClArr->GetEntriesFast()));
 535   }
 536   if(f3Prong) {
 537     AliDebug(1,Form(" Charm->3Prong in event = %d;",
 538                     (Int_t)aodCharm3ProngTClArr->GetEntriesFast()));
 539   }
 540   if(f4Prong) {
 541     AliDebug(1,Form(" Charm->4Prong in event = %d;\n",
 542                     (Int_t)aodCharm4ProngTClArr->GetEntriesFast()));
 543   }
 544   if(fDstar) {
 545     AliDebug(1,Form(" D*->D0pi in event = %d;\n",
 546                     (Int_t)aodDstarTClArr->GetEntriesFast()));
 547   }
 548
 549
 550   twoTrackArray1->Delete();  delete twoTrackArray1;
 551   twoTrackArray2->Delete();  delete twoTrackArray2;
 552   twoTrackArrayCasc->Delete();  delete twoTrackArrayCasc;
 553   threeTrackArray->Clear();
 554   threeTrackArray->Delete(); delete threeTrackArray;
 555   fourTrackArray->Delete();  delete fourTrackArray;
 556   delete [] seleFlags; seleFlags=NULL;
 557
 558   if(fInputAOD) {
 559     seleTrksArray.Delete();
 560   }
 561
 562   return;
 563 }
 564 //----------------------------------------------------------------------------
 565 void AliAnalysisVertexingHF::AddDaughterRefs(AliAODVertex *v,AliVEvent *event,
 566                                              TObjArray *trkArray) const
 567 {
 568   // Add the AOD tracks as daughters of the vertex (TRef)
 569
 570   Int_t nTrks = trkArray->GetEntriesFast();
 571
 572   AliESDtrack *esdTrack = 0;
 573   AliAODTrack *aodTrack = 0;
 574   Int_t id;
 575
 576   for(Int_t i=0; i<nTrks; i++) {
 577     esdTrack = (AliESDtrack*)trkArray->UncheckedAt(i);
 578     id = (Int_t)esdTrack->GetID();
 579     //printf("---> %d\n",id);
 580     if(id<0) continue; // this track is a D0
 581     aodTrack = (AliAODTrack*)event->GetTrack(fAODMap[id]);
 582     v->AddDaughter(aodTrack);
 583   }
 584
 585   return;
 586 }
 587 //----------------------------------------------------------------------------
 588 AliAODRecoCascadeHF* AliAnalysisVertexingHF::MakeCascade(
 589                                    TObjArray *twoTrackArray,AliVEvent *event,
 590                                    AliAODVertex *secVert,
 591                                    AliAODRecoDecayHF2Prong *rd2Prong,
 592                                    Double_t dca,
 593                                    Bool_t &okDstar) const
 594 {
 595   // Make the cascade as a 2Prong decay and check if it passes Dstar
 596   // reconstruction cuts
 597
 598   okDstar = kFALSE;
 599
 600   Bool_t dummy1,dummy2,dummy3;
 601
 602   // We use Make2Prong to construct the AliAODRecoCascadeHF
 603   // (which inherits from AliAODRecoDecayHF2Prong)
 604   AliAODRecoCascadeHF *theCascade =
 605     (AliAODRecoCascadeHF*)Make2Prong(twoTrackArray,event,secVert,dca,
 606                                      dummy1,dummy2,dummy3);
 607   if(!theCascade) return 0x0;
 608
 609   // charge
 610   AliESDtrack *trackPi = (AliESDtrack*)twoTrackArray->UncheckedAt(0);
 611   theCascade->SetCharge(trackPi->Charge());
 612
 613   //--- selection cuts
 614   //
 615   AliAODRecoCascadeHF *tmpCascade = new AliAODRecoCascadeHF(*theCascade);
 616   tmpCascade->Set2Prong(rd2Prong); // this is needed for the selection
 617   AliAODVertex *primVertexAOD=0;
 618   if(!fRecoPrimVtxSkippingTrks && !fRmTrksFromPrimVtx) {
 619     // take event primary vertex
 620     primVertexAOD = PrimaryVertex();
 621     tmpCascade->SetOwnPrimaryVtx(primVertexAOD);
 622     rd2Prong->SetOwnPrimaryVtx(primVertexAOD);
 623   }
 624   // select D*->D0pi
 625   if(fDstar) {
 626     Bool_t testD0=kTRUE;
 627     okDstar = tmpCascade->SelectDstar(fDstarCuts,fD0fromDstarCuts,testD0);
 628   }
 629   tmpCascade->UnsetOwnPrimaryVtx();
 630   tmpCascade->Unset2Prong();
 631   delete tmpCascade; tmpCascade=NULL;
 632   if(!fRecoPrimVtxSkippingTrks && !fRmTrksFromPrimVtx) {
 633     rd2Prong->UnsetOwnPrimaryVtx();
 634     delete primVertexAOD; primVertexAOD=NULL;
 635   }
 636   //---
 637
 638   return theCascade;
 639 }
 640 //-----------------------------------------------------------------------------
 641 AliAODRecoDecayHF2Prong *AliAnalysisVertexingHF::Make2Prong(
 642                                    TObjArray *twoTrackArray,AliVEvent *event,
 643                                    AliAODVertex *secVert,Double_t dca,
 644                                    Bool_t &okD0,Bool_t &okJPSI,
 645                                    Bool_t &okD0fromDstar) const
 646 {
 647   // Make 2Prong candidates and check if they pass D0toKpi or BtoJPSI
 648   // reconstruction cuts
 649   // G.E.Bruno (J/psi), A.Dainese (D0->Kpi)
 650
 651   okD0=kFALSE; okJPSI=kFALSE; okD0fromDstar=kFALSE;
 652
 653   Double_t px[2],py[2],pz[2],d0[2],d0err[2];
 654
 655   AliESDtrack *postrack = (AliESDtrack*)twoTrackArray->UncheckedAt(0);
 656   AliESDtrack *negtrack = (AliESDtrack*)twoTrackArray->UncheckedAt(1);
 657
 658   // propagate tracks to secondary vertex, to compute inv. mass
 659   postrack->PropagateToDCA(secVert,fBzkG,kVeryBig);
 660   negtrack->PropagateToDCA(secVert,fBzkG,kVeryBig);
 661
 662   Double_t momentum[3];
 663   postrack->GetPxPyPz(momentum);
 664   px[0] = momentum[0]; py[0] = momentum[1]; pz[0] = momentum[2];
 665   negtrack->GetPxPyPz(momentum);
 666   px[1] = momentum[0]; py[1] = momentum[1]; pz[1] = momentum[2];
 667
 668
 669   // invariant mass cut (try to improve coding here..)
 670   Bool_t okMassCut=kFALSE;
 671   if(!okMassCut && fD0toKpi)   if(SelectInvMass(0,2,px,py,pz)) okMassCut=kTRUE;
 672   if(!okMassCut && fJPSItoEle) if(SelectInvMass(1,2,px,py,pz)) okMassCut=kTRUE;
 673   if(!okMassCut && fDstar)     if(SelectInvMass(3,2,px,py,pz)) okMassCut=kTRUE;
 674   if(!okMassCut) {
 675     AliDebug(2," candidate didn't pass mass cut");
 676     return 0x0;
 677   }
 678
 679   // primary vertex to be used by this candidate
 680   AliAODVertex *primVertexAOD  = PrimaryVertex(twoTrackArray,event);
 681   if(!primVertexAOD) return 0x0;
 682
 683   Double_t d0z0[2],covd0z0[3];
 684   postrack->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
 685   d0[0] = d0z0[0];
 686   d0err[0] = TMath::Sqrt(covd0z0[0]);
 687   negtrack->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
 688   d0[1] = d0z0[0];
 689   d0err[1] = TMath::Sqrt(covd0z0[0]);
 690
 691   // create the object AliAODRecoDecayHF2Prong
 692   AliAODRecoDecayHF2Prong *the2Prong = new AliAODRecoDecayHF2Prong(secVert,px,py,pz,d0,d0err,dca);
 693   the2Prong->SetOwnPrimaryVtx(primVertexAOD);
 694   UShort_t id[2]={(UShort_t)postrack->GetID(),(UShort_t)negtrack->GetID()};
 695   the2Prong->SetProngIDs(2,id);
 696
 697
 698   // select D0->Kpi
 699   Int_t checkD0,checkD0bar;
 700   if(fD0toKpi)   okD0          = the2Prong->SelectD0(fD0toKpiCuts,checkD0,checkD0bar);
 701   //if(fDebug && fD0toKpi) printf("   %d\n",(Int_t)okD0);
 702   // select J/psi from B
 703   Int_t checkJPSI;
 704   if(fJPSItoEle) okJPSI        = the2Prong->SelectBtoJPSI(fBtoJPSICuts,checkJPSI);
 705   //if(fDebug && fJPSItoEle) printf("   %d\n",(Int_t)okJPSI);
 706   // select D0->Kpi from Dstar
 707   if(fDstar)     okD0fromDstar = the2Prong->SelectD0(fD0fromDstarCuts,checkD0,checkD0bar);
 708   //if(fDebug && fDstar) printf("   %d\n",(Int_t)okD0fromDstar);
 709
 710   // remove the primary vertex (was used only for selection)
 711   if(!fRecoPrimVtxSkippingTrks && !fRmTrksFromPrimVtx) the2Prong->UnsetOwnPrimaryVtx();
 712
 713   // get PID info from ESD
 714   Double_t esdpid0[5];
 715   postrack->GetESDpid(esdpid0);
 716   Double_t esdpid1[5];
 717   negtrack->GetESDpid(esdpid1);
 718   Double_t esdpid[10];
 719   for(Int_t i=0;i<5;i++) {
 720     esdpid[i]   = esdpid0[i];
 721     esdpid[5+i] = esdpid1[i];
 722   }
 723   the2Prong->SetPID(2,esdpid);
 724
 725   return the2Prong;
 726 }
 727 //----------------------------------------------------------------------------
 728 AliAODRecoDecayHF3Prong* AliAnalysisVertexingHF::Make3Prong(
 729                              TObjArray *threeTrackArray,AliVEvent *event,
 730                              AliAODVertex *secVert,Double_t dispersion,
 731                              AliAODVertex *vertexp1n1,AliAODVertex *vertexp2n1,
 732                              Double_t dcap1n1,Double_t dcap2n1,Double_t dcap1p2,
 733                              Bool_t &ok3Prong) const
 734 {
 735   // Make 3Prong candidates and check if they pass Dplus or Ds or Lambdac
 736   // reconstruction cuts
 737   // E.Bruna, F.Prino
 738
 739
 740   ok3Prong=kFALSE;
 741   if(!secVert) return 0x0;
 742
 743   Double_t px[3],py[3],pz[3],d0[3],d0err[3];
 744   Double_t momentum[3];
 745
 746
 747   AliESDtrack *postrack1 = (AliESDtrack*)threeTrackArray->UncheckedAt(0);
 748   AliESDtrack *negtrack  = (AliESDtrack*)threeTrackArray->UncheckedAt(1);
 749   AliESDtrack *postrack2 = (AliESDtrack*)threeTrackArray->UncheckedAt(2);
 750
 751   postrack1->PropagateToDCA(secVert,fBzkG,kVeryBig);
 752   negtrack->PropagateToDCA(secVert,fBzkG,kVeryBig);
 753   postrack2->PropagateToDCA(secVert,fBzkG,kVeryBig);
 754   postrack1->GetPxPyPz(momentum);
 755   px[0] = momentum[0]; py[0] = momentum[1]; pz[0] = momentum[2];
 756   negtrack->GetPxPyPz(momentum);
 757   px[1] = momentum[0]; py[1] = momentum[1]; pz[1] = momentum[2];
 758   postrack2->GetPxPyPz(momentum);
 759   px[2] = momentum[0]; py[2] = momentum[1]; pz[2] = momentum[2];
 760
 761   // invariant mass cut for D+, Ds, Lc
 762   Bool_t okMassCut=kFALSE;
 763   if(!okMassCut && f3Prong) if(SelectInvMass(2,3,px,py,pz)) okMassCut=kTRUE;
 764   if(!okMassCut) {
 765     AliDebug(2," candidate didn't pass mass cut");
 766     return 0x0;
 767   }
 768
 769   // primary vertex to be used by this candidate
 770   AliAODVertex *primVertexAOD  = PrimaryVertex(threeTrackArray,event);
 771   if(!primVertexAOD) return 0x0;
 772
 773   Double_t d0z0[2],covd0z0[3];
 774   postrack1->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
 775   d0[0]=d0z0[0];
 776   d0err[0] = TMath::Sqrt(covd0z0[0]);
 777   negtrack->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
 778   d0[1]=d0z0[0];
 779   d0err[1] = TMath::Sqrt(covd0z0[0]);
 780   postrack2->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
 781   d0[2]=d0z0[0];
 782   d0err[2] = TMath::Sqrt(covd0z0[0]);
 783
 784
 785   // create the object AliAODRecoDecayHF3Prong
 786   Double_t pos[3]; primVertexAOD->GetXYZ(pos);
 787   Double_t dca[3]={dcap1n1,dcap2n1,dcap1p2};
 788   Double_t dist12=TMath::Sqrt((vertexp1n1->GetX()-pos[0])*(vertexp1n1->GetX()-pos[0])+(vertexp1n1->GetY()-pos[1])*(vertexp1n1->GetY()-pos[1])+(vertexp1n1->GetZ()-pos[2])*(vertexp1n1->GetZ()-pos[2]));
 789   Double_t dist23=TMath::Sqrt((vertexp2n1->GetX()-pos[0])*(vertexp2n1->GetX()-pos[0])+(vertexp2n1->GetY()-pos[1])*(vertexp2n1->GetY()-pos[1])+(vertexp2n1->GetZ()-pos[2])*(vertexp2n1->GetZ()-pos[2]));
 790   Short_t charge=(Short_t)(postrack1->Charge()*postrack2->Charge()*negtrack->Charge());
 791   AliAODRecoDecayHF3Prong *the3Prong = new AliAODRecoDecayHF3Prong(secVert,px,py,pz,d0,d0err,dca,dispersion,dist12,dist23,charge);
 792   the3Prong->SetOwnPrimaryVtx(primVertexAOD);
 793   UShort_t id[3]={(UShort_t)postrack1->GetID(),(UShort_t)negtrack->GetID(),(UShort_t)postrack2->GetID()};
 794   the3Prong->SetProngIDs(3,id);
 795
 796
 797   // select D+->Kpipi, Ds->KKpi, Lc->pKpi
 798   if(f3Prong) {
 799     ok3Prong = kFALSE;
 800     Int_t ok1,ok2;
 801     if(the3Prong->SelectDplus(fDplusCuts))   ok3Prong = kTRUE;
 802     if(the3Prong->SelectDs(fDsCuts,ok1,ok2)) ok3Prong = kTRUE;
 803     if(the3Prong->SelectLc(fLcCuts,ok1,ok2)) ok3Prong = kTRUE;
 804   }
 805   //if(fDebug) printf("ok3Prong: %d\n",(Int_t)ok3Prong);
 806
 807   if(!fRecoPrimVtxSkippingTrks && !fRmTrksFromPrimVtx) the3Prong->UnsetOwnPrimaryVtx();
 808
 809   // get PID info from ESD
 810   Double_t esdpid0[5];
 811   postrack1->GetESDpid(esdpid0);
 812   Double_t esdpid1[5];
 813   negtrack->GetESDpid(esdpid1);
 814   Double_t esdpid2[5];
 815   postrack2->GetESDpid(esdpid2);
 816
 817   Double_t esdpid[15];
 818   for(Int_t i=0;i<5;i++) {
 819     esdpid[i]    = esdpid0[i];
 820     esdpid[5+i]  = esdpid1[i];
 821     esdpid[10+i] = esdpid2[i];
 822   }
 823   the3Prong->SetPID(3,esdpid);
 824
 825   return the3Prong;
 826 }
 827 //----------------------------------------------------------------------------
 828 AliAODRecoDecayHF4Prong* AliAnalysisVertexingHF::Make4Prong(
 829                              TObjArray *fourTrackArray,AliVEvent *event,
 830                              AliAODVertex *secVert,
 831                              AliAODVertex *vertexp1n1,AliAODVertex *vertexp2n1,
 832                              Double_t dcap1n1,Double_t dcap1n2,Double_t dcap2n1,
 833                              Bool_t &ok4Prong) const
 834 {
 835   // Make 4Prong candidates and check if they pass D0toKpipipi
 836   // reconstruction cuts
 837   // G.E.Bruno, R.Romita
 838
 839   ok4Prong=kFALSE;
 840   if(!secVert) return 0x0;
 841
 842   Double_t px[4],py[4],pz[4],d0[4],d0err[4];//d0z[3];
 843
 844   px[0]=dcap1n1*dcap1n2*dcap2n1; // TO BE CHANGED (done just to removed compilation warning about dca... not used)
 845
 846   AliESDtrack *postrack1 = (AliESDtrack*)fourTrackArray->UncheckedAt(0);
 847   AliESDtrack *negtrack1 = (AliESDtrack*)fourTrackArray->UncheckedAt(1);
 848   AliESDtrack *postrack2 = (AliESDtrack*)fourTrackArray->UncheckedAt(2);
 849   AliESDtrack *negtrack2 = (AliESDtrack*)fourTrackArray->UncheckedAt(3);
 850
 851   postrack1->PropagateToDCA(secVert,fBzkG,kVeryBig);
 852   negtrack1->PropagateToDCA(secVert,fBzkG,kVeryBig);
 853   postrack2->PropagateToDCA(secVert,fBzkG,kVeryBig);
 854   negtrack2->PropagateToDCA(secVert,fBzkG,kVeryBig);
 855
 856   Double_t momentum[3];
 857   postrack1->GetPxPyPz(momentum);
 858   px[0] = momentum[0]; py[0] = momentum[1]; pz[0] = momentum[2];
 859   negtrack1->GetPxPyPz(momentum);
 860   px[1] = momentum[0]; py[1] = momentum[1]; pz[1] = momentum[2];
 861   postrack2->GetPxPyPz(momentum);
 862   px[2] = momentum[0]; py[2] = momentum[1]; pz[2] = momentum[2];
 863   negtrack2->GetPxPyPz(momentum);
 864   px[3] = momentum[0]; py[3] = momentum[1]; pz[3] = momentum[2];
 865
 866   // invariant mass cut for rho or D0 (try to improve coding here..)
 867   //Bool_t okMassCut=kFALSE;
 868   //if(!okMassCut) if(SelectInvMass(2,3,px,py,pz)) okMassCut=kTRUE;
 869   //if(!okMassCut) {
 870   //  if(fDebug) printf(" candidate didn't pass mass cut\n");
 871   //  return 0x0;
 872   //}
 873
 874   // primary vertex to be used by this candidate
 875   AliAODVertex *primVertexAOD  = PrimaryVertex(fourTrackArray,event);
 876   if(!primVertexAOD) return 0x0;
 877
 878   /*
 879     Double_t d0z0[2],covd0z0[3];
 880     postrack1->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
 881     negtrack1->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
 882     postrack2->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
 883     negtrack2->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
 884   */
 885
 886   // create the object AliAODRecoDecayHF4Prong
 887   Double_t pos[3]; primVertexAOD->GetXYZ(pos);
 888   Double_t dca[6]={0.,0.,0.,0.,0.,0.}; //  modify it
 889   Double_t dist12=TMath::Sqrt((vertexp1n1->GetX()-pos[0])*(vertexp1n1->GetX()-pos[0])+(vertexp1n1->GetY()-pos[1])*(vertexp1n1->GetY()-pos[1])+(vertexp1n1->GetZ()-pos[2])*(vertexp1n1->GetZ()-pos[2]));
 890   Double_t dist23=TMath::Sqrt((vertexp2n1->GetX()-pos[0])*(vertexp2n1->GetX()-pos[0])+(vertexp2n1->GetY()-pos[1])*(vertexp2n1->GetY()-pos[1])+(vertexp2n1->GetZ()-pos[2])*(vertexp2n1->GetZ()-pos[2]));
 891   Double_t dist14=0.; // to be implemented
 892   Double_t dist34=0.; // to be implemented
 893   Short_t charge=0;
 894   AliAODRecoDecayHF4Prong *the4Prong = new AliAODRecoDecayHF4Prong(secVert,px,py,pz,d0,d0err,dca,dist12,dist23,dist14,dist34,charge);
 895   the4Prong->SetOwnPrimaryVtx(primVertexAOD);
 896   UShort_t id[4]={(UShort_t)postrack1->GetID(),(UShort_t)negtrack1->GetID(),(UShort_t)postrack2->GetID(),(UShort_t)negtrack2->GetID()};
 897   the4Prong->SetProngIDs(4,id);
 898
 899
 900   // use the following two lines once AliAODRecoDecayHF4Prong::SelectD0 is available
 901   // select D0->Kpipipi
 902   //Int_t checkD0,checkD0bar;
 903   // ok4Prong=the4Prong->SelectD0(fD04pCuts,checkD0,checkD0bar);
 904   ok4Prong=kFALSE;  //for the time being ...
 905
 906   if(!fRecoPrimVtxSkippingTrks && !fRmTrksFromPrimVtx) the4Prong->UnsetOwnPrimaryVtx();
 907
 908   // get PID info from ESD
 909   Double_t esdpid0[5];
 910   postrack1->GetESDpid(esdpid0);
 911   Double_t esdpid1[5];
 912   negtrack1->GetESDpid(esdpid1);
 913   Double_t esdpid2[5];
 914   postrack2->GetESDpid(esdpid2);
 915   Double_t esdpid3[5];
 916   negtrack2->GetESDpid(esdpid3);
 917
 918   Double_t esdpid[20];
 919   for(Int_t i=0;i<5;i++) {
 920     esdpid[i]    = esdpid0[i];
 921     esdpid[5+i]  = esdpid1[i];
 922     esdpid[10+i] = esdpid2[i];
 923     esdpid[15+i] = esdpid3[i];
 924   }
 925   the4Prong->SetPID(4,esdpid);
 926
 927   return the4Prong;
 928 }
 929 //-----------------------------------------------------------------------------
 930 AliAODVertex* AliAnalysisVertexingHF::PrimaryVertex(TObjArray *trkArray,
 931                                                     AliVEvent *event) const
 932 {
 933   // Returns primary vertex to be used for this candidate
 934
 935   AliESDVertex *vertexESD = 0;
 936   AliAODVertex *vertexAOD = 0;
 937
 938
 939   if(!fRecoPrimVtxSkippingTrks && !fRmTrksFromPrimVtx) {
 940     // primary vertex from the input event
 941
 942     vertexESD = new AliESDVertex(*fV1);
 943
 944   } else {
 945     // primary vertex specific to this candidate
 946
 947     Int_t nTrks = trkArray->GetEntriesFast();
 948     AliVertexerTracks *vertexer = new AliVertexerTracks(event->GetMagneticField());
 949
 950     if(fRecoPrimVtxSkippingTrks) {
 951       // recalculating the vertex
 952
 953       if(strstr(fV1->GetTitle(),"VertexerTracksWithConstraint")) {
 954         Float_t diamondcovxy[3];
 955         event->GetDiamondCovXY(diamondcovxy);
 956         Double_t pos[3]={event->GetDiamondX(),event->GetDiamondY(),0.};
 957         Double_t cov[6]={diamondcovxy[0],diamondcovxy[1],diamondcovxy[2],0.,0.,10.};
 958         AliESDVertex *diamond = new AliESDVertex(pos,cov,1.,1);
 959         vertexer->SetVtxStart(diamond);
 960         delete diamond; diamond=NULL;
 961         if(strstr(fV1->GetTitle(),"VertexerTracksWithConstraintOnlyFitter"))
 962           vertexer->SetOnlyFitter();
 963       }
 964       Int_t skipped[10];
 965       AliESDtrack *t = 0;
 966       for(Int_t i=0; i<nTrks; i++) {
 967         t = (AliESDtrack*)trkArray->UncheckedAt(i);
 968         skipped[i] = (Int_t)t->GetID();
 969       }
 970       vertexer->SetSkipTracks(nTrks,skipped);
 971       vertexESD = (AliESDVertex*)vertexer->FindPrimaryVertex(event);
 972
 973     } else if(fRmTrksFromPrimVtx) {
 974       // removing the prongs tracks
 975
 976       TObjArray rmArray(nTrks);
 977       UShort_t *rmId = new UShort_t[nTrks];
 978       AliESDtrack *esdTrack = 0;
 979       AliESDtrack *t = 0;
 980       for(Int_t i=0; i<nTrks; i++) {
 981         t = (AliESDtrack*)trkArray->UncheckedAt(i);
 982         esdTrack = new AliESDtrack(*t);
 983         rmArray.AddLast(esdTrack);
 984         if(esdTrack->GetID()>=0) {
 985           rmId[i]=(UShort_t)esdTrack->GetID();
 986         } else {
 987           rmId[i]=9999;
 988         }
 989       }
 990       Float_t diamondxy[2]={event->GetDiamondX(),event->GetDiamondY()};
 991       vertexESD = vertexer->RemoveTracksFromVertex(fV1,&rmArray,rmId,diamondxy);
 992       delete [] rmId; rmId=NULL;
 993       rmArray.Delete();
 994
 995     }
 996
 997     if(!vertexESD) return vertexAOD;
 998     if(vertexESD->GetNContributors()<=0) {
 999       AliDebug(2,"vertexing failed");
1000       delete vertexESD; vertexESD=NULL;
1001       return vertexAOD;
1002     }
1003
1004     delete vertexer; vertexer=NULL;
1005
1006   }
1007
1008   // convert to AliAODVertex
1009   Double_t pos[3],cov[6],chi2perNDF;
1010   vertexESD->GetXYZ(pos); // position
1011   vertexESD->GetCovMatrix(cov); //covariance matrix
1012   chi2perNDF = vertexESD->GetChi2toNDF();
1013   delete vertexESD; vertexESD=NULL;
1014
1015   vertexAOD = new AliAODVertex(pos,cov,chi2perNDF);
1016
1017   return vertexAOD;
1018 }
1019 //-----------------------------------------------------------------------------
1020 void AliAnalysisVertexingHF::PrintStatus() const {
1021   // Print parameters being used
1022
1023   //printf("Preselections:\n");
1024   //   fTrackFilter->Dump();
1025   if(fSecVtxWithKF) {
1026     printf("Secondary vertex with Kalman filter package (AliKFParticle)\n");
1027   } else {
1028     printf("Secondary vertex with AliVertexerTracks\n");
1029   }
1030   if(fRecoPrimVtxSkippingTrks) printf("RecoPrimVtxSkippingTrks\n");
1031   if(fRmTrksFromPrimVtx) printf("RmTrksFromPrimVtx\n");
1032   if(fD0toKpi) {
1033     printf("Reconstruct D0->Kpi candidates with cuts:\n");
1034     printf("    |M-MD0| [GeV]    < %f\n",fD0toKpiCuts[0]);
1035     printf("    dca    [cm]  < %f\n",fD0toKpiCuts[1]);
1036     printf("    cosThetaStar     < %f\n",fD0toKpiCuts[2]);
1037     printf("    pTK     [GeV/c]    > %f\n",fD0toKpiCuts[3]);
1038     printf("    pTpi    [GeV/c]    > %f\n",fD0toKpiCuts[4]);
1039     printf("    |d0K|  [cm]  < %f\n",fD0toKpiCuts[5]);
1040     printf("    |d0pi| [cm]  < %f\n",fD0toKpiCuts[6]);
1041     printf("    d0d0  [cm^2] < %f\n",fD0toKpiCuts[7]);
1042     printf("    cosThetaPoint    > %f\n",fD0toKpiCuts[8]);
1043   }
1044   if(fDstar) {
1045     printf("    |M-MD*| [GeV]    < %f\n",fDstarCuts[0]);
1046     printf("    |M_Kpipi-M_Kpi-(MD*-MD0)| [GeV]  < %f\n",fDstarCuts[1]);
1047     printf("    pTpisoft [GeV/c]    > %f\n",fDstarCuts[2]);
1048     printf("    pTpisoft [GeV/c]    < %f\n",fDstarCuts[3]);
1049     printf("    Theta(pisoft,D0plane) < %f\n",fDstarCuts[4]);
1050     printf("Reconstruct D*->D0pi candidates with cuts:\n");
1051     printf("   D0 from D* cuts:\n");
1052     printf("    |M-MD0| [GeV]    < %f\n",fD0fromDstarCuts[0]);
1053     printf("    dca    [cm]  < %f\n",fD0fromDstarCuts[1]);
1054     printf("    cosThetaStar     < %f\n",fD0fromDstarCuts[2]);
1055     printf("    pTK     [GeV/c]    > %f\n",fD0fromDstarCuts[3]);
1056     printf("    pTpi    [GeV/c]    > %f\n",fD0fromDstarCuts[4]);
1057     printf("    |d0K|  [cm]  < %f\n",fD0fromDstarCuts[5]);
1058     printf("    |d0pi| [cm]  < %f\n",fD0fromDstarCuts[6]);
1059     printf("    d0d0  [cm^2] < %f\n",fD0fromDstarCuts[7]);
1060     printf("    cosThetaPoint    > %f\n",fD0fromDstarCuts[8]);
1061   }
1062   if(fJPSItoEle) {
1063     printf("Reconstruct J/psi from B candidates with cuts:\n");
1064     printf("    |M-MJPSI| [GeV]    < %f\n",fBtoJPSICuts[0]);
1065     printf("    dca    [cm]  < %f\n",fBtoJPSICuts[1]);
1066     printf("    cosThetaStar     < %f\n",fBtoJPSICuts[2]);
1067     printf("    pTP     [GeV/c]    > %f\n",fBtoJPSICuts[3]);
1068     printf("    pTN    [GeV/c]    > %f\n",fBtoJPSICuts[4]);
1069     printf("    |d0P|  [cm]  < %f\n",fBtoJPSICuts[5]);
1070     printf("    |d0N| [cm]  < %f\n",fBtoJPSICuts[6]);
1071     printf("    d0d0  [cm^2] < %f\n",fBtoJPSICuts[7]);
1072     printf("    cosThetaPoint    > %f\n",fBtoJPSICuts[8]);
1073   }
1074   if(f3Prong) {
1075     printf("Reconstruct 3 prong candidates.\n");
1076     printf("  D+->Kpipi cuts:\n");
1077     printf("    |M-MD+| [GeV]    < %f\n",fDplusCuts[0]);
1078     printf("    pTK     [GeV/c]    > %f\n",fDplusCuts[1]);
1079     printf("    pTPi    [GeV/c]    > %f\n",fDplusCuts[2]);
1080     printf("    |d0K|  [cm]  > %f\n",fDplusCuts[3]);
1081     printf("    |d0Pi| [cm]  > %f\n",fDplusCuts[4]);
1082     printf("    dist12    [cm]  < %f\n",fDplusCuts[5]);
1083     printf("    sigmavert [cm]   < %f\n",fDplusCuts[6]);
1084     printf("    dist prim-sec [cm] > %f\n",fDplusCuts[7]);
1085     printf("    pM=Max{pT1,pT2,pT3} [GeV/c] > %f\n",fDplusCuts[8]);
1086     printf("    cosThetaPoint    > %f\n",fDplusCuts[9]);
1087     printf("    Sum d0^2 [cm^2]  > %f\n",fDplusCuts[10]);
1088     printf("    dca cut [cm]  < %f\n",fDplusCuts[11]);
1089     printf("  Ds->KKpi cuts:\n");
1090     printf("    |M-MDs| [GeV]    < %f\n",fDsCuts[0]);
1091     printf("    pTK     [GeV/c]    > %f\n",fDsCuts[1]);
1092     printf("    pTPi    [GeV/c]    > %f\n",fDsCuts[2]);
1093     printf("    |d0K|  [cm]  > %f\n",fDsCuts[3]);
1094     printf("    |d0Pi| [cm]  > %f\n",fDsCuts[4]);
1095     printf("    dist12    [cm]  < %f\n",fDsCuts[5]);
1096     printf("    sigmavert [cm]   < %f\n",fDsCuts[6]);
1097     printf("    dist prim-sec [cm] > %f\n",fDsCuts[7]);
1098     printf("    pM=Max{pT1,pT2,pT3} [GeV/c] > %f\n",fDsCuts[8]);
1099     printf("    cosThetaPoint    > %f\n",fDsCuts[9]);
1100     printf("    Sum d0^2 [cm^2]  > %f\n",fDsCuts[10]);
1101     printf("    dca cut [cm]  < %f\n",fDsCuts[11]);
1102     printf("    Inv. Mass  phi/K0* [GeV]  < %f\n",fDsCuts[12]);
1103     printf("  Lc->pKpi cuts:\n");
1104     printf("    |M-MLc| [GeV]    < %f\n",fLcCuts[0]);
1105     printf("    pTP     [GeV/c]    > %f\n",fLcCuts[1]);
1106     printf("    pTPi and pTK [GeV/c]    > %f\n",fLcCuts[2]);
1107     printf("    |d0P|  [cm]  > %f\n",fLcCuts[3]);
1108     printf("    |d0Pi| and |d0K| [cm]  > %f\n",fLcCuts[4]);
1109     printf("    dist12    [cm]  < %f\n",fLcCuts[5]);
1110     printf("    sigmavert [cm]   < %f\n",fLcCuts[6]);
1111     printf("    dist prim-sec [cm] > %f\n",fLcCuts[7]);
1112     printf("    pM=Max{pT1,pT2,pT3} [GeV/c] > %f\n",fLcCuts[8]);
1113     printf("    cosThetaPoint    > %f\n",fLcCuts[9]);
1114     printf("    Sum d0^2 [cm^2]  > %f\n",fLcCuts[10]);
1115     printf("    dca cut [cm]  < %f\n",fLcCuts[11]);
1116     printf("  Ds->KKpi cuts:\n");
1117   }
1118
1119   return;
1120 }
1121 //-----------------------------------------------------------------------------
1122 AliAODVertex* AliAnalysisVertexingHF::ReconstructSecondaryVertex(TObjArray *trkArray,
1123                                                                  Double_t &dispersion) const
1124 {
1125   // Secondary vertex reconstruction with AliVertexerTracks or AliKFParticle
1126
1127   AliESDVertex *vertexESD = 0;
1128   AliAODVertex *vertexAOD = 0;
1129
1130   if(!fSecVtxWithKF) { // AliVertexerTracks
1131
1132     AliVertexerTracks *vertexer = new AliVertexerTracks(fBzkG);
1133     vertexer->SetVtxStart(fV1);
1134     vertexESD = (AliESDVertex*)vertexer->VertexForSelectedESDTracks(trkArray);
1135     delete vertexer; vertexer=NULL;
1136
1137     if(!vertexESD) return vertexAOD;
1138
1139     if(vertexESD->GetNContributors()!=trkArray->GetEntriesFast()) {
1140       AliDebug(2,"vertexing failed");
1141       delete vertexESD; vertexESD=NULL;
1142       return vertexAOD;
1143     }
1144
1145   } else { // Kalman Filter vertexer (AliKFParticle)
1146
1147     AliKFParticle::SetField(fBzkG);
1148
1149     AliKFVertex vertexKF;
1150
1151     Int_t nTrks = trkArray->GetEntriesFast();
1152     for(Int_t i=0; i<nTrks; i++) {
1153       AliESDtrack *esdTrack = (AliESDtrack*)trkArray->At(i);
1154       AliKFParticle daughterKF(*esdTrack,211);
1155       vertexKF.AddDaughter(daughterKF);
1156     }
1157     vertexESD = new AliESDVertex(vertexKF.Parameters(),
1158                                  vertexKF.CovarianceMatrix(),
1159                                  vertexKF.GetChi2(),
1160                                  vertexKF.GetNContributors());
1161
1162   }
1163
1164   // convert to AliAODVertex
1165   Double_t pos[3],cov[6],chi2perNDF;
1166   vertexESD->GetXYZ(pos); // position
1167   vertexESD->GetCovMatrix(cov); //covariance matrix
1168   chi2perNDF = vertexESD->GetChi2toNDF();
1169   dispersion = vertexESD->GetDispersion();
1170   delete vertexESD; vertexESD=NULL;
1171
1172   vertexAOD = new AliAODVertex(pos,cov,chi2perNDF);
1173   vertexAOD->SetType(AliAODVertex::kUndef); // to be changed
1174
1175   return vertexAOD;
1176 }
1177 //-----------------------------------------------------------------------------
1178 Bool_t AliAnalysisVertexingHF::SelectInvMass(Int_t decay,
1179                                              Int_t nprongs,
1180                                              Double_t *px,
1181                                              Double_t *py,
1182                                              Double_t *pz) const {
1183   // Check invariant mass cut
1184
1185   Short_t dummycharge=0;
1186   Double_t *dummyd0 = new Double_t[nprongs];
1187   for(Int_t ip=0;ip<nprongs;ip++) dummyd0[ip]=0.;
1188   AliAODRecoDecay *rd = new AliAODRecoDecay(0x0,nprongs,dummycharge,px,py,pz,dummyd0);
1189   delete [] dummyd0;
1190
1191   UInt_t pdg2[2],pdg3[3];
1192   Double_t mPDG,minv;
1193
1194   Bool_t retval=kFALSE;
1195   switch (decay)
1196     {
1197     case 0:                  // D0->Kpi
1198       pdg2[0]=211; pdg2[1]=321;
1199       mPDG=TDatabasePDG::Instance()->GetParticle(421)->Mass();
1200       minv = rd->InvMass(nprongs,pdg2);
1201       if(TMath::Abs(minv-mPDG)<fD0toKpiCuts[0]) retval=kTRUE;
1202       pdg2[0]=321; pdg2[1]=211;
1203       minv = rd->InvMass(nprongs,pdg2);
1204       if(TMath::Abs(minv-mPDG)<fD0toKpiCuts[0]) retval=kTRUE;
1205       break;
1206     case 1:                  // JPSI->ee
1207       pdg2[0]=11; pdg2[1]=11;
1208       mPDG=TDatabasePDG::Instance()->GetParticle(443)->Mass();
1209       minv = rd->InvMass(nprongs,pdg2);
1210       if(TMath::Abs(minv-mPDG)<fBtoJPSICuts[0]) retval=kTRUE;
1211       break;
1212     case 2:                  // D+->Kpipi
1213       pdg3[0]=211; pdg3[1]=321; pdg3[2]=211;
1214       mPDG=TDatabasePDG::Instance()->GetParticle(411)->Mass();
1215       minv = rd->InvMass(nprongs,pdg3);
1216       if(TMath::Abs(minv-mPDG)<fDplusCuts[0]) retval=kTRUE;
1217                             // Ds+->KKpi
1218       pdg3[0]=321; pdg3[1]=321; pdg3[2]=211;
1219       mPDG=TDatabasePDG::Instance()->GetParticle(431)->Mass();
1220       minv = rd->InvMass(nprongs,pdg3);
1221       if(TMath::Abs(minv-mPDG)<fDsCuts[0]) retval=kTRUE;
1222       pdg3[0]=211; pdg3[1]=321; pdg3[2]=321;
1223       minv = rd->InvMass(nprongs,pdg3);
1224       if(TMath::Abs(minv-mPDG)<fDsCuts[0]) retval=kTRUE;
1225                             // Lc->pKpi
1226       pdg3[0]=2212; pdg3[1]=321; pdg3[2]=211;
1227       mPDG=TDatabasePDG::Instance()->GetParticle(4122)->Mass();
1228       minv = rd->InvMass(nprongs,pdg3);
1229       if(TMath::Abs(minv-mPDG)<fLcCuts[0]) retval=kTRUE;
1230       pdg3[0]=211; pdg3[1]=321; pdg3[2]=2212;
1231       minv = rd->InvMass(nprongs,pdg3);
1232       if(TMath::Abs(minv-mPDG)<fLcCuts[0]) retval=kTRUE;
1233       break;
1234     case 3:                  // D*->D0pi
1235       pdg2[0]=421; pdg2[1]=211;
1236       mPDG=TDatabasePDG::Instance()->GetParticle(413)->Mass();
1237       minv = rd->InvMass(nprongs,pdg2);
1238       if(TMath::Abs(minv-mPDG)<fDstarCuts[0]) retval=kTRUE;
1239       break;
1240     default:
1241       printf("SelectInvMass(): wrong decay selection\n");
1242       break;
1243     }
1244
1245   delete rd;
1246
1247   return retval;
1248 }
1249 //-----------------------------------------------------------------------------
1250 void AliAnalysisVertexingHF::SelectTracksAndCopyVertex(AliVEvent *event,
1251                                    TObjArray &seleTrksArray,Int_t &nSeleTrks,
1252                                                        UChar_t *seleFlags)
1253 {
1254   // Apply single-track preselection.
1255   // Fill a TObjArray with selected tracks (for displaced vertices or
1256   // soft pion from D*). Selection flag stored in seleFlags.
1257   // Create the AliESDVertex object (convert from AliAODVertex if necessary)
1258   // In case of AOD input, also fill fAODMap for track index<->ID
1259
1260   const AliVVertex *vprimary = event->GetPrimaryVertex();
1261
1262   if(fV1) { delete fV1; fV1=NULL; }
1263   if(fAODMap) { delete [] fAODMap; fAODMap=NULL; }
1264
1265   Int_t nindices=0;
1266   UShort_t *indices = 0;
1267   Double_t pos[3],cov[6];
1268
1269   if(!fInputAOD) { // ESD
1270     fV1 = new AliESDVertex(*((AliESDVertex*)vprimary));
1271   } else {         // AOD
1272     vprimary->GetXYZ(pos);
1273     vprimary->GetCovarianceMatrix(cov);
1274     fV1 = new AliESDVertex(pos,cov,100.,100,vprimary->GetName());
1275     indices = new UShort_t[event->GetNumberOfTracks()];
1276     fAODMap = new Int_t[100000];
1277   }
1278
1279
1280   Int_t entries = (Int_t)event->GetNumberOfTracks();
1281   Bool_t okDisplaced=kFALSE,okSoftPi=kFALSE;
1282   nSeleTrks=0;
1283
1284   // transfer ITS tracks from event to arrays
1285   for(Int_t i=0; i<entries; i++) {
1286     AliVTrack *track = (AliVTrack*)event->GetTrack(i);
1287
1288     if(fInputAOD) {
1289       AliAODTrack *aodt = (AliAODTrack*)track;
1290       if(aodt->GetUsedForPrimVtxFit()) {
1291         indices[nindices]=aodt->GetID(); nindices++;
1292       }
1293       fAODMap[(Int_t)aodt->GetID()] = i;
1294     }
1295
1296     AliESDtrack *esdt = 0;
1297     if(!fInputAOD) {
1298       esdt = (AliESDtrack*)track;
1299     } else {
1300       esdt = new AliESDtrack(track);
1301     }
1302
1303     // single track selection
1304     okDisplaced=kFALSE; okSoftPi=kFALSE;
1305     if(SingleTrkCuts(esdt,okDisplaced,okSoftPi)) {
1306       seleTrksArray.AddLast(esdt);
1307       seleFlags[nSeleTrks]=0;
1308       if(okDisplaced) SETBIT(seleFlags[nSeleTrks],kBitDispl);
1309       if(okSoftPi)    SETBIT(seleFlags[nSeleTrks],kBitSoftPi);
1310       nSeleTrks++;
1311     } else {
1312       if(fInputAOD) delete esdt;
1313       esdt = NULL;
1314       continue;
1315     }
1316
1317   } // end loop on tracks
1318
1319   // primary vertex from AOD
1320   if(fInputAOD) {
1321     delete fV1; fV1=NULL;
1322     vprimary->GetXYZ(pos);
1323     vprimary->GetCovarianceMatrix(cov);
1324     Double_t chi2toNDF = vprimary->GetChi2perNDF();
1325     Int_t ncontr=nindices;
1326     if(!strcmp(vprimary->GetTitle(),"VertexerTracksWithContraint")) ncontr += 1;
1327     Double_t chi2=chi2toNDF*(2.*(Double_t)ncontr-3.);
1328     fV1 = new AliESDVertex(pos,cov,chi2,ncontr,vprimary->GetName());
1329     fV1->SetTitle(vprimary->GetTitle());
1330     fV1->SetIndices(nindices,indices);
1331   }
1332   if(indices) { delete [] indices; indices=NULL; }
1333
1334
1335   return;
1336 }
1337 //-----------------------------------------------------------------------------
1338 void AliAnalysisVertexingHF::SetD0toKpiCuts(Double_t cut0,Double_t cut1,
1339                                    Double_t cut2,Double_t cut3,Double_t cut4,
1340                                    Double_t cut5,Double_t cut6,
1341                                    Double_t cut7,Double_t cut8)
1342 {
1343   // Set the cuts for D0 selection
1344   fD0toKpiCuts[0] = cut0;
1345   fD0toKpiCuts[1] = cut1;
1346   fD0toKpiCuts[2] = cut2;
1347   fD0toKpiCuts[3] = cut3;
1348   fD0toKpiCuts[4] = cut4;
1349   fD0toKpiCuts[5] = cut5;
1350   fD0toKpiCuts[6] = cut6;
1351   fD0toKpiCuts[7] = cut7;
1352   fD0toKpiCuts[8] = cut8;
1353
1354   return;
1355 }
1356 //-----------------------------------------------------------------------------
1357 void AliAnalysisVertexingHF::SetD0toKpiCuts(const Double_t cuts[9])
1358 {
1359   // Set the cuts for D0 selection
1360
1361   for(Int_t i=0; i<9; i++) fD0toKpiCuts[i] = cuts[i];
1362
1363   return;
1364 }
1365 //-----------------------------------------------------------------------------
1366 void AliAnalysisVertexingHF::SetD0fromDstarCuts(Double_t cut0,Double_t cut1,
1367                                    Double_t cut2,Double_t cut3,Double_t cut4,
1368                                    Double_t cut5,Double_t cut6,
1369                                    Double_t cut7,Double_t cut8)
1370 {
1371   // Set the cuts for D0 from D* selection
1372   fD0fromDstarCuts[0] = cut0;
1373   fD0fromDstarCuts[1] = cut1;
1374   fD0fromDstarCuts[2] = cut2;
1375   fD0fromDstarCuts[3] = cut3;
1376   fD0fromDstarCuts[4] = cut4;
1377   fD0fromDstarCuts[5] = cut5;
1378   fD0fromDstarCuts[6] = cut6;
1379   fD0fromDstarCuts[7] = cut7;
1380   fD0fromDstarCuts[8] = cut8;
1381
1382   return;
1383 }
1384 //-----------------------------------------------------------------------------
1385 void AliAnalysisVertexingHF::SetD0fromDstarCuts(const Double_t cuts[9])
1386 {
1387   // Set the cuts for D0 from D* selection
1388
1389   for(Int_t i=0; i<9; i++) fD0fromDstarCuts[i] = cuts[i];
1390
1391   return;
1392 }
1393 //-----------------------------------------------------------------------------
1394 void AliAnalysisVertexingHF::SetDstarCuts(Double_t cut0,Double_t cut1,
1395                                           Double_t cut2,Double_t cut3,
1396                                           Double_t cut4)
1397 {
1398   // Set the cuts for D* selection
1399   fDstarCuts[0] = cut0;
1400   fDstarCuts[1] = cut1;
1401   fDstarCuts[2] = cut2;
1402   fDstarCuts[3] = cut3;
1403   fDstarCuts[4] = cut4;
1404
1405   return;
1406 }
1407 //-----------------------------------------------------------------------------
1408 void AliAnalysisVertexingHF::SetDstarCuts(const Double_t cuts[5])
1409 {
1410   // Set the cuts for D* selection
1411
1412   for(Int_t i=0; i<5; i++) fDstarCuts[i] = cuts[i];
1413
1414   return;
1415 }
1416 //-----------------------------------------------------------------------------
1417 void AliAnalysisVertexingHF::SetBtoJPSICuts(Double_t cut0,Double_t cut1,
1418                                    Double_t cut2,Double_t cut3,Double_t cut4,
1419                                    Double_t cut5,Double_t cut6,
1420                                    Double_t cut7,Double_t cut8)
1421 {
1422   // Set the cuts for J/psi from B selection
1423   fBtoJPSICuts[0] = cut0;
1424   fBtoJPSICuts[1] = cut1;
1425   fBtoJPSICuts[2] = cut2;
1426   fBtoJPSICuts[3] = cut3;
1427   fBtoJPSICuts[4] = cut4;
1428   fBtoJPSICuts[5] = cut5;
1429   fBtoJPSICuts[6] = cut6;
1430   fBtoJPSICuts[7] = cut7;
1431   fBtoJPSICuts[8] = cut8;
1432
1433   return;
1434 }
1435 //-----------------------------------------------------------------------------
1436 void AliAnalysisVertexingHF::SetBtoJPSICuts(const Double_t cuts[9])
1437 {
1438   // Set the cuts for J/psi from B selection
1439
1440   for(Int_t i=0; i<9; i++) fBtoJPSICuts[i] = cuts[i];
1441
1442   return;
1443 }
1444 //-----------------------------------------------------------------------------
1445 void AliAnalysisVertexingHF::SetDplusCuts(Double_t cut0,Double_t cut1,
1446                                    Double_t cut2,Double_t cut3,Double_t cut4,
1447                                    Double_t cut5,Double_t cut6,
1448                                    Double_t cut7,Double_t cut8,
1449                                    Double_t cut9,Double_t cut10,Double_t cut11)
1450 {
1451   // Set the cuts for Dplus->Kpipi selection
1452   fDplusCuts[0] = cut0;
1453   fDplusCuts[1] = cut1;
1454   fDplusCuts[2] = cut2;
1455   fDplusCuts[3] = cut3;
1456   fDplusCuts[4] = cut4;
1457   fDplusCuts[5] = cut5;
1458   fDplusCuts[6] = cut6;
1459   fDplusCuts[7] = cut7;
1460   fDplusCuts[8] = cut8;
1461   fDplusCuts[9] = cut9;
1462   fDplusCuts[10] = cut10;
1463   fDplusCuts[11] = cut11;
1464
1465   return;
1466 }
1467 //-----------------------------------------------------------------------------
1468 void AliAnalysisVertexingHF::SetDplusCuts(const Double_t cuts[12])
1469 {
1470   // Set the cuts for Dplus->Kpipi selection
1471
1472   for(Int_t i=0; i<12; i++) fDplusCuts[i] = cuts[i];
1473
1474   return;
1475 }
1476 //-----------------------------------------------------------------------------
1477 void AliAnalysisVertexingHF::SetDsCuts(Double_t cut0,Double_t cut1,
1478                                    Double_t cut2,Double_t cut3,Double_t cut4,
1479                                    Double_t cut5,Double_t cut6,
1480                                    Double_t cut7,Double_t cut8,
1481                                    Double_t cut9,Double_t cut10,
1482                                    Double_t cut11,Double_t cut12)
1483 {
1484   // Set the cuts for Ds->KKpi selection
1485   fDsCuts[0] = cut0;
1486   fDsCuts[1] = cut1;
1487   fDsCuts[2] = cut2;
1488   fDsCuts[3] = cut3;
1489   fDsCuts[4] = cut4;
1490   fDsCuts[5] = cut5;
1491   fDsCuts[6] = cut6;
1492   fDsCuts[7] = cut7;
1493   fDsCuts[8] = cut8;
1494   fDsCuts[9] = cut9;
1495   fDsCuts[10] = cut10;
1496   fDsCuts[11] = cut11;
1497   fDsCuts[12] = cut12;
1498
1499   return;
1500 }
1501 //-----------------------------------------------------------------------------
1502 void AliAnalysisVertexingHF::SetDsCuts(const Double_t cuts[13])
1503 {
1504   // Set the cuts for Ds->KKpi selection
1505
1506   for(Int_t i=0; i<13; i++) fDsCuts[i] = cuts[i];
1507
1508   return;
1509 }
1510 //-----------------------------------------------------------------------------
1511 void AliAnalysisVertexingHF::SetLcCuts(Double_t cut0,Double_t cut1,
1512                                    Double_t cut2,Double_t cut3,Double_t cut4,
1513                                    Double_t cut5,Double_t cut6,
1514                                    Double_t cut7,Double_t cut8,
1515                                    Double_t cut9,Double_t cut10,Double_t cut11)
1516 {
1517   // Set the cuts for Lc->pKpi selection
1518   fLcCuts[0] = cut0;
1519   fLcCuts[1] = cut1;
1520   fLcCuts[2] = cut2;
1521   fLcCuts[3] = cut3;
1522   fLcCuts[4] = cut4;
1523   fLcCuts[5] = cut5;
1524   fLcCuts[6] = cut6;
1525   fLcCuts[7] = cut7;
1526   fLcCuts[8] = cut8;
1527   fLcCuts[9] = cut9;
1528   fLcCuts[10] = cut10;
1529   fLcCuts[11] = cut11;
1530
1531   return;
1532 }
1533 //-----------------------------------------------------------------------------
1534 void AliAnalysisVertexingHF::SetLcCuts(const Double_t cuts[12])
1535 {
1536   // Set the cuts for Lc->pKpi selection
1537
1538   for(Int_t i=0; i<12; i++) fLcCuts[i] = cuts[i];
1539
1540   return;
1541 }
1542 //-----------------------------------------------------------------------------
1543 Bool_t AliAnalysisVertexingHF::SingleTrkCuts(AliESDtrack *trk,
1544                                              Bool_t &okDisplaced,Bool_t &okSoftPi) const
1545 {
1546   // Check if track passes some kinematical cuts
1547
1548   // this is needed to store the impact parameters
1549   trk->RelateToVertex(fV1,fBzkG,kVeryBig);
1550
1551   UInt_t selectInfo;
1552   //
1553   // Track selection, displaced tracks
1554   selectInfo = 0;
1555   if(fTrackFilter) {
1556     selectInfo = fTrackFilter->IsSelected(trk);
1557   }
1558   if(selectInfo) okDisplaced=kTRUE;
1559   // Track selection, soft pions
1560   selectInfo = 0;
1561   if(fDstar && fTrackFilterSoftPi) {
1562     selectInfo = fTrackFilterSoftPi->IsSelected(trk);
1563   }
1564   if(selectInfo) okSoftPi=kTRUE;
1565
1566   if(okDisplaced || okSoftPi) return kTRUE;
1567
1568   return kFALSE;
1569 }
1570 //-----------------------------------------------------------------------------