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  *                                                                        *
   7  * Permission to use, copy, modify and distribute this software and its   *
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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     *
  12  * about the suitability of this software for any purpose. It is          *
  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 //  Contact: andrea.dainese@lnl.infn.it
  24 //  Contributors: E.Bruna, G.E.Bruno, A.Dainese, C.Di Gliglio,
  25 //                F.Prino, R.Romita, X.M.Zhang
  26 //----------------------------------------------------------------------------
  27 #include <TFile.h>
  28 #include <TDatabasePDG.h>
  29 #include <TString.h>
  30 #include "AliLog.h"
  31 #include "AliVEvent.h"
  32 #include "AliVVertex.h"
  33 #include "AliVTrack.h"
  34 #include "AliVertexerTracks.h"
  35 #include "AliKFVertex.h"
  36 #include "AliESDEvent.h"
  37 #include "AliESDVertex.h"
  38 #include "AliExternalTrackParam.h"
  39 #include "AliNeutralTrackParam.h"
  40 #include "AliESDtrack.h"
  41 #include "AliESDtrackCuts.h"
  42 #include "AliAODEvent.h"
  43 #include "AliAODRecoDecay.h"
  44 #include "AliAODRecoDecayHF.h"
  45 #include "AliAODRecoDecayHF2Prong.h"
  46 #include "AliAODRecoDecayHF3Prong.h"
  47 #include "AliAODRecoDecayHF4Prong.h"
  48 #include "AliAODRecoCascadeHF.h"
  49 #include "AliAnalysisFilter.h"
  50 #include "AliAnalysisVertexingHF.h"
  51
  52 ClassImp(AliAnalysisVertexingHF)
  53
  54 //----------------------------------------------------------------------------
  55 AliAnalysisVertexingHF::AliAnalysisVertexingHF():
  56 fInputAOD(kFALSE),
  57 fAODMap(0),
  58 fBzkG(0.),
  59 fSecVtxWithKF(kFALSE),
  60 fRecoPrimVtxSkippingTrks(kFALSE),
  61 fRmTrksFromPrimVtx(kFALSE),
  62 fV1(0x0),
  63 fD0toKpi(kTRUE),
  64 fJPSItoEle(kTRUE),
  65 f3Prong(kTRUE),
  66 f4Prong(kTRUE),
  67 fDstar(kTRUE),
  68 fLikeSign(kFALSE),
  69 fTrackFilter(0x0),
  70 fTrackFilterSoftPi(0x0),
  71 fFindVertexForDstar(kTRUE)
  72 {
  73   // Default constructor
  74
  75   SetD0toKpiCuts();
  76   SetBtoJPSICuts();
  77   SetDplusCuts();
  78   SetDsCuts();
  79   SetLcCuts();
  80   SetDstarCuts();
  81   SetD0to4ProngsCuts();
  82 }
  83 //--------------------------------------------------------------------------
  84 AliAnalysisVertexingHF::AliAnalysisVertexingHF(const AliAnalysisVertexingHF &source) :
  85 TNamed(source),
  86 fInputAOD(source.fInputAOD),
  87 fAODMap(source.fAODMap),
  88 fBzkG(source.fBzkG),
  89 fSecVtxWithKF(source.fSecVtxWithKF),
  90 fRecoPrimVtxSkippingTrks(source.fRecoPrimVtxSkippingTrks),
  91 fRmTrksFromPrimVtx(source.fRmTrksFromPrimVtx),
  92 fV1(source.fV1),
  93 fD0toKpi(source.fD0toKpi),
  94 fJPSItoEle(source.fJPSItoEle),
  95 f3Prong(source.f3Prong),
  96 f4Prong(source.f4Prong),
  97 fDstar(source.fDstar),
  98 fLikeSign(source.fLikeSign),
  99 fTrackFilter(source.fTrackFilter),
 100 fTrackFilterSoftPi(source.fTrackFilterSoftPi),
 101 fFindVertexForDstar(source.fFindVertexForDstar)
 102 {
 103   //
 104   // Copy constructor
 105   //
 106   for(Int_t i=0; i<9; i++)  fD0toKpiCuts[i]=source.fD0toKpiCuts[i];
 107   for(Int_t i=0; i<9; i++)  fBtoJPSICuts[i]=source.fBtoJPSICuts[i];
 108   for(Int_t i=0; i<12; i++) fDplusCuts[i]=source.fDplusCuts[i];
 109   for(Int_t i=0; i<13; i++) fDsCuts[i]=source.fDsCuts[i];
 110   for(Int_t i=0; i<12; i++) fLcCuts[i]=source.fLcCuts[i];
 111   for(Int_t i=0; i<5; i++)  fDstarCuts[i]=source.fDstarCuts[i];
 112   for(Int_t i=0; i<9; i++)  fD0to4ProngsCuts[i]=source.fD0to4ProngsCuts[i];
 113 }
 114 //--------------------------------------------------------------------------
 115 AliAnalysisVertexingHF &AliAnalysisVertexingHF::operator=(const AliAnalysisVertexingHF &source)
 116 {
 117   //
 118   // assignment operator
 119   //
 120   if(&source == this) return *this;
 121   fInputAOD = source.fInputAOD;
 122   fBzkG = source.fBzkG;
 123   fSecVtxWithKF = source.fSecVtxWithKF;
 124   fRecoPrimVtxSkippingTrks = source.fRecoPrimVtxSkippingTrks;
 125   fRmTrksFromPrimVtx = source.fRmTrksFromPrimVtx;
 126   fV1 = source.fV1;
 127   fD0toKpi = source.fD0toKpi;
 128   fJPSItoEle = source.fJPSItoEle;
 129   f3Prong = source.f3Prong;
 130   f4Prong = source.f4Prong;
 131   fDstar = source.fDstar;
 132   fLikeSign = source.fLikeSign;
 133   fTrackFilter = source.fTrackFilter;
 134   fTrackFilterSoftPi = source.fTrackFilterSoftPi;
 135   fFindVertexForDstar = source.fFindVertexForDstar;
 136
 137   for(Int_t i=0; i<9; i++)  fD0toKpiCuts[i]=source.fD0toKpiCuts[i];
 138   for(Int_t i=0; i<9; i++)  fBtoJPSICuts[i]=source.fBtoJPSICuts[i];
 139   for(Int_t i=0; i<12; i++) fDplusCuts[i]=source.fDplusCuts[i];
 140   for(Int_t i=0; i<13; i++) fDsCuts[i]=source.fDsCuts[i];
 141   for(Int_t i=0; i<12; i++) fLcCuts[i]=source.fLcCuts[i];
 142   for(Int_t i=0; i<5; i++)  fDstarCuts[i]=source.fDstarCuts[i];
 143   for(Int_t i=0; i<9; i++)  fD0to4ProngsCuts[i]=source.fD0to4ProngsCuts[i];
 144
 145   return *this;
 146 }
 147 //----------------------------------------------------------------------------
 148 AliAnalysisVertexingHF::~AliAnalysisVertexingHF() {
 149   // Destructor
 150   if(fV1) { delete fV1; fV1=0; }
 151   if(fTrackFilter) { delete fTrackFilter; fTrackFilter=0; }
 152   if(fTrackFilterSoftPi) { delete fTrackFilterSoftPi; fTrackFilterSoftPi=0; }
 153 }
 154 //----------------------------------------------------------------------------
 155 void AliAnalysisVertexingHF::FindCandidates(AliVEvent *event,
 156                                             TClonesArray *aodVerticesHFTClArr,
 157                                             TClonesArray *aodD0toKpiTClArr,
 158                                             TClonesArray *aodJPSItoEleTClArr,
 159                                             TClonesArray *aodCharm3ProngTClArr,
 160                                             TClonesArray *aodCharm4ProngTClArr,
 161                                             TClonesArray *aodDstarTClArr,
 162                                             TClonesArray *aodLikeSign2ProngTClArr,
 163                                             TClonesArray *aodLikeSign3ProngTClArr)
 164 {
 165   // Find heavy-flavour vertex candidates
 166   // Input:  ESD or AOD
 167   // Output: AOD (additional branches added)
 168
 169
 170   TString evtype = event->IsA()->GetName();
 171   fInputAOD = ((evtype=="AliAODEvent") ? kTRUE : kFALSE);
 172
 173   if(!aodVerticesHFTClArr) {
 174     printf("ERROR: no aodVerticesHFTClArr");
 175     return;
 176   }
 177   if((fD0toKpi || fDstar) && !aodD0toKpiTClArr) {
 178     printf("ERROR: no aodD0toKpiTClArr");
 179     return;
 180   }
 181   if(fJPSItoEle && !aodJPSItoEleTClArr) {
 182     printf("ERROR: no aodJPSItoEleTClArr");
 183     return;
 184   }
 185   if(f3Prong && !aodCharm3ProngTClArr) {
 186     printf("ERROR: no aodCharm3ProngTClArr");
 187     return;
 188   }
 189   if(f4Prong && !aodCharm4ProngTClArr) {
 190     printf("ERROR: no aodCharm4ProngTClArr");
 191     return;
 192   }
 193   if(fDstar && !aodDstarTClArr) {
 194     printf("ERROR: no aodDstarTClArr");
 195     return;
 196   }
 197   if(fLikeSign && !aodLikeSign2ProngTClArr) {
 198     printf("ERROR: no aodLikeSign2ProngTClArr");
 199     return;
 200   }
 201   if(fLikeSign && f3Prong && !aodLikeSign3ProngTClArr) {
 202     printf("ERROR: no aodLikeSign2ProngTClArr");
 203     return;
 204   }
 205
 206   // delete candidates from previous event and create references
 207   Int_t iVerticesHF=0,iD0toKpi=0,iJPSItoEle=0,i3Prong=0,i4Prong=0,iDstar=0,iLikeSign2Prong=0,iLikeSign3Prong=0;
 208   aodVerticesHFTClArr->Delete();
 209   iVerticesHF = aodVerticesHFTClArr->GetEntriesFast();
 210   TClonesArray &verticesHFRef = *aodVerticesHFTClArr;
 211   if(fD0toKpi || fDstar)   {
 212     aodD0toKpiTClArr->Delete();
 213     iD0toKpi = aodD0toKpiTClArr->GetEntriesFast();
 214   }
 215   if(fJPSItoEle) {
 216     aodJPSItoEleTClArr->Delete();
 217     iJPSItoEle = aodJPSItoEleTClArr->GetEntriesFast();
 218   }
 219   if(f3Prong) {
 220     aodCharm3ProngTClArr->Delete();
 221     i3Prong = aodCharm3ProngTClArr->GetEntriesFast();
 222   }
 223   if(f4Prong) {
 224     aodCharm4ProngTClArr->Delete();
 225     i4Prong = aodCharm4ProngTClArr->GetEntriesFast();
 226   }
 227   if(fDstar) {
 228     aodDstarTClArr->Delete();
 229     iDstar = aodDstarTClArr->GetEntriesFast();
 230   }
 231   if(fLikeSign) {
 232     aodLikeSign2ProngTClArr->Delete();
 233     iLikeSign2Prong = aodLikeSign2ProngTClArr->GetEntriesFast();
 234   }
 235   if(fLikeSign && f3Prong) {
 236     aodLikeSign3ProngTClArr->Delete();
 237     iLikeSign3Prong = aodLikeSign3ProngTClArr->GetEntriesFast();
 238   }
 239
 240   TClonesArray &aodD0toKpiRef        = *aodD0toKpiTClArr;
 241   TClonesArray &aodJPSItoEleRef      = *aodJPSItoEleTClArr;
 242   TClonesArray &aodCharm3ProngRef    = *aodCharm3ProngTClArr;
 243   TClonesArray &aodCharm4ProngRef    = *aodCharm4ProngTClArr;
 244   TClonesArray &aodDstarRef          = *aodDstarTClArr;
 245   TClonesArray &aodLikeSign2ProngRef = *aodLikeSign2ProngTClArr;
 246   TClonesArray &aodLikeSign3ProngRef = *aodLikeSign3ProngTClArr;
 247
 248
 249   AliAODRecoDecayHF2Prong *io2Prong  = 0;
 250   AliAODRecoDecayHF3Prong *io3Prong  = 0;
 251   AliAODRecoDecayHF4Prong *io4Prong  = 0;
 252   AliAODRecoCascadeHF     *ioCascade = 0;
 253
 254   Int_t    iTrkP1,iTrkP2,iTrkN1,iTrkN2,iTrkSoftPi,trkEntries;
 255   Double_t xdummy,ydummy,dcap1n1,dcap1n2,dcap2n1,dcap1p2,dcan1n2,dcap2n2,dcaCasc;
 256   Bool_t   okD0=kFALSE,okJPSI=kFALSE,ok3Prong=kFALSE,ok4Prong=kFALSE;
 257   Bool_t   okDstar=kFALSE,okD0fromDstar=kFALSE;
 258   AliESDtrack *postrack1 = 0;
 259   AliESDtrack *postrack2 = 0;
 260   AliESDtrack *negtrack1 = 0;
 261   AliESDtrack *negtrack2 = 0;
 262   AliESDtrack *trackPi   = 0;
 263   Double_t dcaMax = fD0toKpiCuts[1];
 264   if(dcaMax < fBtoJPSICuts[1]) dcaMax=fBtoJPSICuts[1];
 265   if(dcaMax < fDplusCuts[11])  dcaMax=fDplusCuts[11];
 266   if(dcaMax < fD0to4ProngsCuts[1])  dcaMax=fD0to4ProngsCuts[1];
 267   AliDebug(2,Form(" dca cut set to %f cm",dcaMax));
 268
 269
 270   // get Bz
 271   fBzkG = (Double_t)event->GetMagneticField();
 272
 273   trkEntries = (Int_t)event->GetNumberOfTracks();
 274   AliDebug(1,Form(" Number of tracks: %d",trkEntries));
 275
 276   if(trkEntries<2) {
 277     AliDebug(1,Form(" Not enough tracks: %d",trkEntries));
 278     return;
 279   }
 280
 281   const AliVVertex *primary = event->GetPrimaryVertex();
 282   if(!primary) {
 283     AliDebug(1," No primary vertex from tracks");
 284     return;
 285   }
 286   TString primTitle = primary->GetTitle();
 287   if(!primTitle.Contains("VertexerTracks") ||
 288      primary->GetNContributors()<=0) {
 289     AliDebug(1," No primary vertex from tracks");
 290     return;
 291   }
 292
 293   // call function that applies sigle-track selection,
 294   // for displaced tracks and soft pions (both charges) for D*,
 295   // and retrieves primary vertex
 296   TObjArray seleTrksArray(trkEntries);
 297   UChar_t  *seleFlags = new UChar_t[trkEntries]; // bit 0: displaced, bit 1: softpi
 298   Int_t     nSeleTrks=0;
 299   SelectTracksAndCopyVertex(event,seleTrksArray,nSeleTrks,seleFlags);
 300
 301   AliDebug(1,Form(" Selected tracks: %d",nSeleTrks));
 302
 303   TObjArray *twoTrackArray1    = new TObjArray(2);
 304   TObjArray *twoTrackArray2    = new TObjArray(2);
 305   TObjArray *twoTrackArrayCasc = new TObjArray(2);
 306   TObjArray *threeTrackArray   = new TObjArray(3);
 307   TObjArray *fourTrackArray    = new TObjArray(4);
 308
 309   Double_t dispersion;
 310   Bool_t isLikeSign2Prong=kFALSE,isLikeSign3Prong=kFALSE;
 311
 312   AliAODRecoDecayHF   *rd = 0;
 313   AliAODRecoCascadeHF *rc = 0;
 314
 315   // LOOP ON  POSITIVE  TRACKS
 316   for(iTrkP1=0; iTrkP1<nSeleTrks; iTrkP1++) {
 317
 318     if(iTrkP1%1==0) AliDebug(1,Form("  1st loop on pos: track number %d of %d",iTrkP1,nSeleTrks));
 319
 320     // get track from tracks array
 321     postrack1 = (AliESDtrack*)seleTrksArray.UncheckedAt(iTrkP1);
 322
 323     if(!TESTBIT(seleFlags[iTrkP1],kBitDispl)) continue;
 324
 325     if(postrack1->Charge()<0 && !fLikeSign) continue;
 326
 327     // LOOP ON  NEGATIVE  TRACKS
 328     for(iTrkN1=0; iTrkN1<nSeleTrks; iTrkN1++) {
 329
 330       if(iTrkN1%1==0) AliDebug(1,Form("    1st loop on neg: track number %d of %d",iTrkN1,nSeleTrks));
 331
 332       if(iTrkN1==iTrkP1) continue;
 333
 334       // get track from tracks array
 335       negtrack1 = (AliESDtrack*)seleTrksArray.UncheckedAt(iTrkN1);
 336
 337       if(negtrack1->Charge()>0 && !fLikeSign) continue;
 338
 339       if(!TESTBIT(seleFlags[iTrkN1],kBitDispl)) continue;
 340
 341       if(postrack1->Charge()==negtrack1->Charge()) { // like-sign
 342         isLikeSign2Prong=kTRUE;
 343         if(!fLikeSign)    continue;
 344         if(iTrkN1<iTrkP1) continue; // this is needed to avoid double-counting of like-sign
 345       } else { // unlike-sign
 346         isLikeSign2Prong=kFALSE;
 347         if(postrack1->Charge()<0 || negtrack1->Charge()>0) continue;  // this is needed to avoid double-counting of unlike-sign
 348       }
 349
 350       // back to primary vertex
 351       postrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 352       negtrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 353       //printf("********** %d %d\n",postrack1->GetID(),negtrack1->GetID());
 354
 355       // DCA between the two tracks
 356       dcap1n1 = postrack1->GetDCA(negtrack1,fBzkG,xdummy,ydummy);
 357       if(dcap1n1>dcaMax) { negtrack1=0; continue; }
 358
 359       // Vertexing
 360       twoTrackArray1->AddAt(postrack1,0);
 361       twoTrackArray1->AddAt(negtrack1,1);
 362       AliAODVertex *vertexp1n1 = ReconstructSecondaryVertex(twoTrackArray1,dispersion);
 363       if(!vertexp1n1) {
 364         twoTrackArray1->Clear();
 365         negtrack1=0;
 366         continue;
 367       }
 368
 369       // 2 prong candidate
 370       if(fD0toKpi || fJPSItoEle || fDstar || fLikeSign) {
 371
 372         io2Prong = Make2Prong(twoTrackArray1,event,vertexp1n1,dcap1n1,okD0,okJPSI,okD0fromDstar);
 373
 374         if((fD0toKpi && okD0) || (fJPSItoEle && okJPSI) || (isLikeSign2Prong && (okD0 || okJPSI))) {
 375           // add the vertex and the decay to the AOD
 376           AliAODVertex *v2Prong = new(verticesHFRef[iVerticesHF++])AliAODVertex(*vertexp1n1);
 377           if(fInputAOD) AddDaughterRefs(v2Prong,event,twoTrackArray1);
 378           if(!isLikeSign2Prong) {
 379             if(okD0) {
 380               rd = new(aodD0toKpiRef[iD0toKpi++])AliAODRecoDecayHF2Prong(*io2Prong);
 381               rd->SetSecondaryVtx(v2Prong);
 382               v2Prong->SetParent(rd);
 383             }
 384             if(okJPSI) {
 385               rd = new(aodJPSItoEleRef[iJPSItoEle++])AliAODRecoDecayHF2Prong(*io2Prong);
 386               rd->SetSecondaryVtx(v2Prong);
 387               if(!okD0) v2Prong->SetParent(rd); // it cannot have two mothers ...
 388             }
 389           } else { // isLikeSign2Prong
 390             rd = new(aodLikeSign2ProngRef[iLikeSign2Prong++])AliAODRecoDecayHF2Prong(*io2Prong);
 391             rd->SetSecondaryVtx(v2Prong);
 392             v2Prong->SetParent(rd);
 393           }
 394         }
 395         // D* candidates
 396         if(fDstar && okD0fromDstar && !isLikeSign2Prong) {
 397           // write references in io2Prong
 398           if(fInputAOD) {
 399             AddDaughterRefs(vertexp1n1,event,twoTrackArray1);
 400           } else {
 401             vertexp1n1->AddDaughter(postrack1);
 402             vertexp1n1->AddDaughter(negtrack1);
 403           }
 404           io2Prong->SetSecondaryVtx(vertexp1n1);
 405           //printf("--->  %d %d %d %d %d\n",vertexp1n1->GetNDaughters(),iTrkP1,iTrkN1,postrack1->Charge(),negtrack1->Charge());
 406           // create a track from the D0
 407           AliNeutralTrackParam *trackD0 = new AliNeutralTrackParam(io2Prong);
 408
 409           // LOOP ON TRACKS THAT PASSED THE SOFT PION CUTS
 410           for(iTrkSoftPi=0; iTrkSoftPi<nSeleTrks; iTrkSoftPi++) {
 411
 412             if(iTrkSoftPi==iTrkP1 || iTrkSoftPi==iTrkN1) continue;
 413
 414             if(!TESTBIT(seleFlags[iTrkSoftPi],kBitSoftPi)) continue;
 415
 416             if(iTrkSoftPi%1==0) AliDebug(1,Form("    1st loop on pi_s: track number %d of %d",iTrkSoftPi,nSeleTrks));
 417
 418             trackD0->PropagateToDCA(fV1,fBzkG,kVeryBig);
 419             if(trackD0->GetSigmaY2()<0. || trackD0->GetSigmaZ2()<0.) continue; // this is insipired by the AliITStrackV2::Invariant() checks
 420
 421             // get track from tracks array
 422             trackPi = (AliESDtrack*)seleTrksArray.UncheckedAt(iTrkSoftPi);
 423             trackPi->PropagateToDCA(fV1,fBzkG,kVeryBig);
 424
 425             twoTrackArrayCasc->AddAt(trackPi,0);
 426             twoTrackArrayCasc->AddAt(trackD0,1);
 427
 428             AliAODVertex *vertexCasc = 0;
 429
 430             if(fFindVertexForDstar) {
 431               // DCA between the two tracks
 432               dcaCasc = trackPi->GetDCA(trackD0,fBzkG,xdummy,ydummy);
 433               // Vertexing
 434               vertexCasc = ReconstructSecondaryVertex(twoTrackArrayCasc,dispersion,kFALSE);
 435             } else {
 436               // assume Dstar decays at the primary vertex
 437               Double_t pos[3],cov[6],chi2perNDF;
 438               fV1->GetXYZ(pos);
 439               fV1->GetCovMatrix(cov);
 440               chi2perNDF = fV1->GetChi2toNDF();
 441               vertexCasc = new AliAODVertex(pos,cov,chi2perNDF,0x0,-1,AliAODVertex::kUndef,2);
 442               dcaCasc = 0.;
 443             }
 444             if(!vertexCasc) {
 445               twoTrackArrayCasc->Clear();
 446               trackPi=0;
 447               continue;
 448             }
 449
 450             ioCascade = MakeCascade(twoTrackArrayCasc,event,vertexCasc,io2Prong,dcaCasc,okDstar);
 451             if(okDstar) {
 452               // add the D0 to the AOD (if not already done)
 453               if(!okD0) {
 454                 AliAODVertex *v2Prong = new(verticesHFRef[iVerticesHF++])AliAODVertex(*vertexp1n1);
 455                 if(fInputAOD) AddDaughterRefs(v2Prong,event,twoTrackArray1);
 456                 rd = new(aodD0toKpiRef[iD0toKpi++])AliAODRecoDecayHF2Prong(*io2Prong);
 457                 rd->SetSecondaryVtx(v2Prong);
 458                 v2Prong->SetParent(rd);
 459                 okD0=kTRUE; // this is done to add it only once
 460               }
 461               // add the vertex and the cascade to the AOD
 462               AliAODVertex *vCasc = new(verticesHFRef[iVerticesHF++])AliAODVertex(*vertexCasc);
 463               if(fInputAOD) {
 464                 AddDaughterRefs(vCasc,event,twoTrackArrayCasc); // add the pion
 465               } else {
 466                 vCasc->AddDaughter(rd); // just to fill ref #0
 467               }
 468               vCasc->AddDaughter(rd); // add the D0 (in ref #1)
 469               rc = new(aodDstarRef[iDstar++])AliAODRecoCascadeHF(*ioCascade);
 470               rc->SetSecondaryVtx(vCasc);
 471               vCasc->SetParent(rc);
 472             }
 473             twoTrackArrayCasc->Clear();
 474             trackPi=0;
 475             if(ioCascade) {delete ioCascade; ioCascade=NULL;}
 476             delete vertexCasc; vertexCasc=NULL;
 477           } // end loop on soft pi tracks
 478
 479           if(trackD0) {delete trackD0; trackD0=NULL;}
 480
 481         }
 482         if(io2Prong) {delete io2Prong; io2Prong=NULL;}
 483       }
 484
 485       twoTrackArray1->Clear();
 486       if( (!f3Prong && !f4Prong) ||
 487           (isLikeSign2Prong && !f3Prong) ) {
 488         negtrack1=0;
 489         delete vertexp1n1;
 490         continue;
 491       }
 492
 493
 494       // 2nd LOOP  ON  POSITIVE  TRACKS
 495       for(iTrkP2=iTrkP1+1; iTrkP2<nSeleTrks; iTrkP2++) {
 496
 497         if(iTrkP2==iTrkP1 || iTrkP2==iTrkN1) continue;
 498
 499         if(iTrkP2%1==0) AliDebug(1,Form("    2nd loop on pos: track number %d of %d",iTrkP2,nSeleTrks));
 500
 501         // get track from tracks array
 502         postrack2 = (AliESDtrack*)seleTrksArray.UncheckedAt(iTrkP2);
 503
 504         if(postrack2->Charge()<0) continue;
 505
 506         if(!TESTBIT(seleFlags[iTrkP2],kBitDispl)) continue;
 507
 508         if(isLikeSign2Prong) { // like-sign pair -> have to build only like-sign triplet
 509           if(postrack1->Charge()>0) { // ok: like-sign triplet (+++)
 510             isLikeSign3Prong=kTRUE;
 511           } else { // not ok
 512             continue;
 513           }
 514         } else { // normal triplet (+-+)
 515           isLikeSign3Prong=kFALSE;
 516         }
 517
 518         // back to primary vertex
 519         postrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 520         postrack2->PropagateToDCA(fV1,fBzkG,kVeryBig);
 521         negtrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 522         //printf("********** %d %d %d\n",postrack1->GetID(),postrack2->GetID(),negtrack1->GetID());
 523
 524         dcap2n1 = postrack2->GetDCA(negtrack1,fBzkG,xdummy,ydummy);
 525         if(dcap2n1>dcaMax) { postrack2=0; continue; }
 526         dcap1p2 = postrack2->GetDCA(postrack1,fBzkG,xdummy,ydummy);
 527         if(dcap1p2>dcaMax) { postrack2=0; continue; }
 528
 529         // Vertexing
 530         twoTrackArray2->AddAt(postrack2,0);
 531         twoTrackArray2->AddAt(negtrack1,1);
 532         AliAODVertex *vertexp2n1 = ReconstructSecondaryVertex(twoTrackArray2,dispersion);
 533         if(!vertexp2n1) {
 534           twoTrackArray2->Clear();
 535           postrack2=0;
 536           continue;
 537         }
 538
 539         // 3 prong candidates
 540         if(f3Prong) {
 541           if(postrack2->Charge()>0) {
 542             threeTrackArray->AddAt(postrack1,0);
 543             threeTrackArray->AddAt(negtrack1,1);
 544             threeTrackArray->AddAt(postrack2,2);
 545           } else {
 546             threeTrackArray->AddAt(negtrack1,0);
 547             threeTrackArray->AddAt(postrack1,1);
 548             threeTrackArray->AddAt(postrack2,2);
 549           }
 550
 551           AliAODVertex* secVert3PrAOD = ReconstructSecondaryVertex(threeTrackArray,dispersion);
 552           io3Prong = Make3Prong(threeTrackArray,event,secVert3PrAOD,dispersion,vertexp1n1,vertexp2n1,dcap1n1,dcap2n1,dcap1p2,ok3Prong);
 553           if(ok3Prong) {
 554             AliAODVertex *v3Prong = new(verticesHFRef[iVerticesHF++])AliAODVertex(*secVert3PrAOD);
 555             if(fInputAOD) AddDaughterRefs(v3Prong,event,threeTrackArray);
 556             if(!isLikeSign3Prong) {
 557               rd = new(aodCharm3ProngRef[i3Prong++])AliAODRecoDecayHF3Prong(*io3Prong);
 558               rd->SetSecondaryVtx(v3Prong);
 559               v3Prong->SetParent(rd);
 560             } else { // isLikeSign3Prong
 561               rd = new(aodLikeSign3ProngRef[iLikeSign3Prong++])AliAODRecoDecayHF3Prong(*io3Prong);
 562               rd->SetSecondaryVtx(v3Prong);
 563               v3Prong->SetParent(rd);
 564             }
 565           }
 566           if(io3Prong) {delete io3Prong; io3Prong=NULL;}
 567           if(secVert3PrAOD) {delete secVert3PrAOD; secVert3PrAOD=NULL;}
 568         }
 569
 570         // 4 prong candidates
 571         if(f4Prong
 572            // don't make 4 prong with like-sign pairs and triplets
 573            && !isLikeSign2Prong && !isLikeSign3Prong
 574            // track-to-track dca cuts already now
 575            && dcap1n1 < fD0to4ProngsCuts[1]
 576            && dcap2n1 < fD0to4ProngsCuts[1]) {
 577
 578           // back to primary vertex
 579           postrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 580           postrack2->PropagateToDCA(fV1,fBzkG,kVeryBig);
 581           negtrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 582           // Vertexing for these 3 (can be taken from above?)
 583           threeTrackArray->AddAt(postrack1,0);
 584           threeTrackArray->AddAt(negtrack1,1);
 585           threeTrackArray->AddAt(postrack2,2);
 586           AliAODVertex* vertexp1n1p2 = ReconstructSecondaryVertex(threeTrackArray,dispersion);
 587
 588           // 3rd LOOP  ON  NEGATIVE  TRACKS (for 4 prong)
 589           for(iTrkN2=iTrkN1+1; iTrkN2<nSeleTrks; iTrkN2++) {
 590
 591             if(iTrkN2==iTrkP1 || iTrkN2==iTrkP2 || iTrkN2==iTrkN1) continue;
 592
 593             if(iTrkN2%1==0) AliDebug(1,Form("    3rd loop on neg: track number %d of %d",iTrkN2,nSeleTrks));
 594
 595             // get track from tracks array
 596             negtrack2 = (AliESDtrack*)seleTrksArray.UncheckedAt(iTrkN2);
 597
 598             if(negtrack2->Charge()>0) continue;
 599
 600             if(!TESTBIT(seleFlags[iTrkN2],kBitDispl)) continue;
 601
 602             // back to primary vertex
 603             postrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 604             postrack2->PropagateToDCA(fV1,fBzkG,kVeryBig);
 605             negtrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 606             negtrack2->PropagateToDCA(fV1,fBzkG,kVeryBig);
 607             dcap1n2 = postrack1->GetDCA(negtrack2,fBzkG,xdummy,ydummy);
 608             if(dcap1n2 > fD0to4ProngsCuts[1]) { negtrack2=0; continue; }
 609             dcap2n2 = postrack2->GetDCA(negtrack2,fBzkG,xdummy,ydummy);
 610             if(dcap2n2 > fD0to4ProngsCuts[1]) { negtrack2=0; continue; }
 611
 612             // Vertexing
 613             fourTrackArray->AddAt(postrack1,0);
 614             fourTrackArray->AddAt(negtrack1,1);
 615             fourTrackArray->AddAt(postrack2,2);
 616             fourTrackArray->AddAt(negtrack2,3);
 617
 618             AliAODVertex* secVert4PrAOD = ReconstructSecondaryVertex(fourTrackArray,dispersion);
 619             io4Prong = Make4Prong(fourTrackArray,event,secVert4PrAOD,vertexp1n1,vertexp1n1p2,dcap1n1,dcap1n2,dcap2n1,dcap2n2,ok4Prong);
 620             if(ok4Prong) {
 621               AliAODVertex *v4Prong = new(verticesHFRef[iVerticesHF++])AliAODVertex(*secVert4PrAOD);
 622               if(fInputAOD) AddDaughterRefs(v4Prong,event,fourTrackArray);
 623               rd = new(aodCharm4ProngRef[i4Prong++])AliAODRecoDecayHF4Prong(*io4Prong);
 624               rd->SetSecondaryVtx(v4Prong);
 625               v4Prong->SetParent(rd);
 626             }
 627
 628             if(io4Prong) {delete io4Prong; io4Prong=NULL;}
 629             if(secVert4PrAOD) {delete secVert4PrAOD; secVert4PrAOD=NULL;}
 630             fourTrackArray->Clear();
 631             negtrack2 = 0;
 632
 633           } // end loop on negative tracks
 634
 635           threeTrackArray->Clear();
 636           delete vertexp1n1p2;
 637
 638         }
 639
 640         postrack2 = 0;
 641         delete vertexp2n1;
 642
 643       } // end 2nd loop on positive tracks
 644
 645       twoTrackArray2->Clear();
 646
 647       // 2nd LOOP  ON  NEGATIVE  TRACKS (for 3 prong -+-)
 648       for(iTrkN2=iTrkN1+1; iTrkN2<nSeleTrks; iTrkN2++) {
 649
 650         if(iTrkN2==iTrkP1 || iTrkN2==iTrkP2 || iTrkN2==iTrkN1) continue;
 651
 652         if(iTrkN2%1==0) AliDebug(1,Form("    2nd loop on neg: track number %d of %d",iTrkN2,nSeleTrks));
 653
 654         // get track from tracks array
 655         negtrack2 = (AliESDtrack*)seleTrksArray.UncheckedAt(iTrkN2);
 656
 657         if(negtrack2->Charge()>0) continue;
 658
 659         if(!TESTBIT(seleFlags[iTrkN2],kBitDispl)) continue;
 660
 661         if(isLikeSign2Prong) { // like-sign pair -> have to build only like-sign triplet
 662           if(postrack1->Charge()<0) { // ok: like-sign triplet (---)
 663             isLikeSign3Prong=kTRUE;
 664           } else { // not ok
 665             continue;
 666           }
 667         } else { // normal triplet (-+-)
 668           isLikeSign3Prong=kFALSE;
 669         }
 670
 671         // back to primary vertex
 672         postrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 673         negtrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 674         negtrack2->PropagateToDCA(fV1,fBzkG,kVeryBig);
 675         //printf("********** %d %d %d\n",postrack1->GetID(),negtrack1->GetID(),negtrack2->GetID());
 676
 677         dcap1n2 = postrack1->GetDCA(negtrack2,fBzkG,xdummy,ydummy);
 678         if(dcap1n2>dcaMax) { negtrack2=0; continue; }
 679         dcan1n2 = negtrack1->GetDCA(negtrack2,fBzkG,xdummy,ydummy);
 680         if(dcan1n2>dcaMax) { negtrack2=0; continue; }
 681
 682         // Vertexing
 683         twoTrackArray2->AddAt(postrack1,0);
 684         twoTrackArray2->AddAt(negtrack2,1);
 685
 686         AliAODVertex *vertexp1n2 = ReconstructSecondaryVertex(twoTrackArray2,dispersion);
 687         if(!vertexp1n2) {
 688           twoTrackArray2->Clear();
 689           negtrack2=0;
 690           continue;
 691         }
 692
 693         if(f3Prong) {
 694           threeTrackArray->AddAt(negtrack1,0);
 695           threeTrackArray->AddAt(postrack1,1);
 696           threeTrackArray->AddAt(negtrack2,2);
 697           AliAODVertex* secVert3PrAOD = ReconstructSecondaryVertex(threeTrackArray,dispersion);
 698           io3Prong = Make3Prong(threeTrackArray,event,secVert3PrAOD,dispersion,vertexp1n1,vertexp1n2,dcap1n1,dcap1n2,dcan1n2,ok3Prong);
 699           if(ok3Prong) {
 700             AliAODVertex *v3Prong = new(verticesHFRef[iVerticesHF++])AliAODVertex(*secVert3PrAOD);
 701             if(fInputAOD) AddDaughterRefs(v3Prong,event,threeTrackArray);
 702             if(!isLikeSign3Prong) {
 703               rd = new(aodCharm3ProngRef[i3Prong++])AliAODRecoDecayHF3Prong(*io3Prong);
 704               rd->SetSecondaryVtx(v3Prong);
 705               v3Prong->SetParent(rd);
 706             } else { // isLikeSign3Prong
 707               rd = new(aodLikeSign3ProngRef[iLikeSign3Prong++])AliAODRecoDecayHF3Prong(*io3Prong);
 708               rd->SetSecondaryVtx(v3Prong);
 709               v3Prong->SetParent(rd);
 710             }
 711           }
 712           if(io3Prong) {delete io3Prong; io3Prong=NULL;}
 713           if(secVert3PrAOD) {delete secVert3PrAOD; secVert3PrAOD=NULL;}
 714         }
 715
 716         negtrack2 = 0;
 717         delete vertexp1n2;
 718
 719       } // end 2nd loop on negative tracks
 720
 721       twoTrackArray2->Clear();
 722
 723       negtrack1 = 0;
 724       delete vertexp1n1;
 725     } // end 1st loop on negative tracks
 726
 727     postrack1 = 0;
 728   }  // end 1st loop on positive tracks
 729
 730
 731   AliDebug(1,Form(" Total HF vertices in event = %d;",
 732                   (Int_t)aodVerticesHFTClArr->GetEntriesFast()));
 733   if(fD0toKpi) {
 734     AliDebug(1,Form(" D0->Kpi in event = %d;",
 735                     (Int_t)aodD0toKpiTClArr->GetEntriesFast()));
 736   }
 737   if(fJPSItoEle) {
 738     AliDebug(1,Form(" JPSI->ee in event = %d;",
 739                     (Int_t)aodJPSItoEleTClArr->GetEntriesFast()));
 740   }
 741   if(f3Prong) {
 742     AliDebug(1,Form(" Charm->3Prong in event = %d;",
 743                     (Int_t)aodCharm3ProngTClArr->GetEntriesFast()));
 744   }
 745   if(f4Prong) {
 746     AliDebug(1,Form(" Charm->4Prong in event = %d;\n",
 747                     (Int_t)aodCharm4ProngTClArr->GetEntriesFast()));
 748   }
 749   if(fDstar) {
 750     AliDebug(1,Form(" D*->D0pi in event = %d;\n",
 751                     (Int_t)aodDstarTClArr->GetEntriesFast()));
 752   }
 753   if(fLikeSign) {
 754     AliDebug(1,Form(" Like-sign 2Prong in event = %d;\n",
 755                     (Int_t)aodLikeSign2ProngTClArr->GetEntriesFast()));
 756   }
 757   if(fLikeSign && f3Prong) {
 758     AliDebug(1,Form(" Like-sign 3Prong in event = %d;\n",
 759                     (Int_t)aodLikeSign3ProngTClArr->GetEntriesFast()));
 760   }
 761
 762
 763   twoTrackArray1->Delete();  delete twoTrackArray1;
 764   twoTrackArray2->Delete();  delete twoTrackArray2;
 765   twoTrackArrayCasc->Delete();  delete twoTrackArrayCasc;
 766   threeTrackArray->Clear();
 767   threeTrackArray->Delete(); delete threeTrackArray;
 768   fourTrackArray->Delete();  delete fourTrackArray;
 769   delete [] seleFlags; seleFlags=NULL;
 770
 771   if(fInputAOD) {
 772     seleTrksArray.Delete();
 773     if(fAODMap) { delete [] fAODMap; fAODMap=NULL; }
 774   }
 775
 776   return;
 777 }
 778 //----------------------------------------------------------------------------
 779 void AliAnalysisVertexingHF::AddDaughterRefs(AliAODVertex *v,AliVEvent *event,
 780                                              TObjArray *trkArray) const
 781 {
 782   // Add the AOD tracks as daughters of the vertex (TRef)
 783
 784   Int_t nTrks = trkArray->GetEntriesFast();
 785
 786   AliExternalTrackParam *track = 0;
 787   AliAODTrack *aodTrack = 0;
 788   Int_t id;
 789
 790   for(Int_t i=0; i<nTrks; i++) {
 791     track = (AliExternalTrackParam*)trkArray->UncheckedAt(i);
 792     id = (Int_t)track->GetID();
 793     //printf("---> %d\n",id);
 794     if(id<0) continue; // this track is a AliAODRecoDecay
 795     aodTrack = (AliAODTrack*)event->GetTrack(fAODMap[id]);
 796     v->AddDaughter(aodTrack);
 797   }
 798
 799   return;
 800 }
 801 //----------------------------------------------------------------------------
 802 AliAODRecoCascadeHF* AliAnalysisVertexingHF::MakeCascade(
 803                                    TObjArray *twoTrackArray,AliVEvent *event,
 804                                    AliAODVertex *secVert,
 805                                    AliAODRecoDecayHF2Prong *rd2Prong,
 806                                    Double_t dca,
 807                                    Bool_t &okDstar) const
 808 {
 809   // Make the cascade as a 2Prong decay and check if it passes Dstar
 810   // reconstruction cuts
 811
 812   okDstar = kFALSE;
 813
 814   Bool_t dummy1,dummy2,dummy3;
 815
 816   // We use Make2Prong to construct the AliAODRecoCascadeHF
 817   // (which inherits from AliAODRecoDecayHF2Prong)
 818   AliAODRecoCascadeHF *theCascade =
 819     (AliAODRecoCascadeHF*)Make2Prong(twoTrackArray,event,secVert,dca,
 820                                      dummy1,dummy2,dummy3);
 821   if(!theCascade) return 0x0;
 822
 823   // charge
 824   AliESDtrack *trackPi = (AliESDtrack*)twoTrackArray->UncheckedAt(0);
 825   theCascade->SetCharge(trackPi->Charge());
 826
 827   //--- selection cuts
 828   //
 829   AliAODRecoCascadeHF *tmpCascade = new AliAODRecoCascadeHF(*theCascade);
 830   tmpCascade->GetSecondaryVtx()->AddDaughter(trackPi);
 831   tmpCascade->GetSecondaryVtx()->AddDaughter(rd2Prong);
 832   AliAODVertex *primVertexAOD=0;
 833   if(!fRecoPrimVtxSkippingTrks && !fRmTrksFromPrimVtx) {
 834     // take event primary vertex
 835     primVertexAOD = PrimaryVertex();
 836     tmpCascade->SetOwnPrimaryVtx(primVertexAOD);
 837     rd2Prong->SetOwnPrimaryVtx(primVertexAOD);
 838   }
 839   // select D*->D0pi
 840   if(fDstar) {
 841     Bool_t testD0=kTRUE;
 842     okDstar = tmpCascade->SelectDstar(fDstarCuts,fD0fromDstarCuts,testD0);
 843   }
 844   tmpCascade->GetSecondaryVtx()->RemoveDaughters();
 845   tmpCascade->UnsetOwnPrimaryVtx();
 846   delete tmpCascade; tmpCascade=NULL;
 847   if(!fRecoPrimVtxSkippingTrks && !fRmTrksFromPrimVtx) {
 848     rd2Prong->UnsetOwnPrimaryVtx();
 849   }
 850   if(primVertexAOD) {delete primVertexAOD; primVertexAOD=NULL;}
 851   //---
 852
 853   return theCascade;
 854 }
 855 //-----------------------------------------------------------------------------
 856 AliAODRecoDecayHF2Prong *AliAnalysisVertexingHF::Make2Prong(
 857                                    TObjArray *twoTrackArray,AliVEvent *event,
 858                                    AliAODVertex *secVert,Double_t dca,
 859                                    Bool_t &okD0,Bool_t &okJPSI,
 860                                    Bool_t &okD0fromDstar) const
 861 {
 862   // Make 2Prong candidates and check if they pass D0toKpi or BtoJPSI
 863   // reconstruction cuts
 864   // G.E.Bruno (J/psi), A.Dainese (D0->Kpi)
 865
 866   okD0=kFALSE; okJPSI=kFALSE; okD0fromDstar=kFALSE;
 867
 868   Double_t px[2],py[2],pz[2],d0[2],d0err[2];
 869
 870   AliESDtrack *postrack = (AliESDtrack*)twoTrackArray->UncheckedAt(0);
 871   AliESDtrack *negtrack = (AliESDtrack*)twoTrackArray->UncheckedAt(1);
 872
 873   // propagate tracks to secondary vertex, to compute inv. mass
 874   postrack->PropagateToDCA(secVert,fBzkG,kVeryBig);
 875   negtrack->PropagateToDCA(secVert,fBzkG,kVeryBig);
 876
 877   Double_t momentum[3];
 878   postrack->GetPxPyPz(momentum);
 879   px[0] = momentum[0]; py[0] = momentum[1]; pz[0] = momentum[2];
 880   negtrack->GetPxPyPz(momentum);
 881   px[1] = momentum[0]; py[1] = momentum[1]; pz[1] = momentum[2];
 882
 883
 884   // invariant mass cut (try to improve coding here..)
 885   Bool_t okMassCut=kFALSE;
 886   if(!okMassCut && fD0toKpi)   if(SelectInvMass(0,2,px,py,pz)) okMassCut=kTRUE;
 887   if(!okMassCut && fJPSItoEle) if(SelectInvMass(1,2,px,py,pz)) okMassCut=kTRUE;
 888   if(!okMassCut && fDstar)     if(SelectInvMass(3,2,px,py,pz)) okMassCut=kTRUE;
 889   if(!okMassCut) {
 890     AliDebug(2," candidate didn't pass mass cut");
 891     return 0x0;
 892   }
 893
 894   // primary vertex to be used by this candidate
 895   AliAODVertex *primVertexAOD  = PrimaryVertex(twoTrackArray,event);
 896   if(!primVertexAOD) return 0x0;
 897
 898   Double_t d0z0[2],covd0z0[3];
 899   postrack->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
 900   d0[0] = d0z0[0];
 901   d0err[0] = TMath::Sqrt(covd0z0[0]);
 902   negtrack->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
 903   d0[1] = d0z0[0];
 904   d0err[1] = TMath::Sqrt(covd0z0[0]);
 905
 906   // create the object AliAODRecoDecayHF2Prong
 907   AliAODRecoDecayHF2Prong *the2Prong = new AliAODRecoDecayHF2Prong(secVert,px,py,pz,d0,d0err,dca);
 908   the2Prong->SetOwnPrimaryVtx(primVertexAOD);
 909   UShort_t id[2]={(UShort_t)postrack->GetID(),(UShort_t)negtrack->GetID()};
 910   the2Prong->SetProngIDs(2,id);
 911   delete primVertexAOD; primVertexAOD=NULL;
 912
 913
 914   // select D0->Kpi
 915   Int_t checkD0,checkD0bar;
 916   if(fD0toKpi)   okD0          = the2Prong->SelectD0(fD0toKpiCuts,checkD0,checkD0bar);
 917   //if(fDebug && fD0toKpi) printf("   %d\n",(Int_t)okD0);
 918   // select J/psi from B
 919   Int_t checkJPSI;
 920   if(fJPSItoEle) okJPSI        = the2Prong->SelectBtoJPSI(fBtoJPSICuts,checkJPSI);
 921   //if(fDebug && fJPSItoEle) printf("   %d\n",(Int_t)okJPSI);
 922   // select D0->Kpi from Dstar
 923   if(fDstar)     okD0fromDstar = the2Prong->SelectD0(fD0fromDstarCuts,checkD0,checkD0bar);
 924   //if(fDebug && fDstar) printf("   %d\n",(Int_t)okD0fromDstar);
 925
 926   // remove the primary vertex (was used only for selection)
 927   if(!fRecoPrimVtxSkippingTrks && !fRmTrksFromPrimVtx) {
 928     the2Prong->UnsetOwnPrimaryVtx();
 929   }
 930
 931   // get PID info from ESD
 932   Double_t esdpid0[5]={0.,0.,0.,0.,0.};
 933   if(postrack->GetStatus()&AliESDtrack::kESDpid) postrack->GetESDpid(esdpid0);
 934   Double_t esdpid1[5]={0.,0.,0.,0.,0.};
 935   if(negtrack->GetStatus()&AliESDtrack::kESDpid) negtrack->GetESDpid(esdpid1);
 936   Double_t esdpid[10];
 937   for(Int_t i=0;i<5;i++) {
 938     esdpid[i]   = esdpid0[i];
 939     esdpid[5+i] = esdpid1[i];
 940   }
 941   the2Prong->SetPID(2,esdpid);
 942
 943   return the2Prong;
 944 }
 945 //----------------------------------------------------------------------------
 946 AliAODRecoDecayHF3Prong* AliAnalysisVertexingHF::Make3Prong(
 947                              TObjArray *threeTrackArray,AliVEvent *event,
 948                              AliAODVertex *secVert,Double_t dispersion,
 949                              AliAODVertex *vertexp1n1,AliAODVertex *vertexp2n1,
 950                              Double_t dcap1n1,Double_t dcap2n1,Double_t dcap1p2,
 951                              Bool_t &ok3Prong) const
 952 {
 953   // Make 3Prong candidates and check if they pass Dplus or Ds or Lambdac
 954   // reconstruction cuts
 955   // E.Bruna, F.Prino
 956
 957
 958   ok3Prong=kFALSE;
 959   if(!secVert || !vertexp1n1 || !vertexp2n1) return 0x0;
 960
 961   Double_t px[3],py[3],pz[3],d0[3],d0err[3];
 962   Double_t momentum[3];
 963
 964
 965   AliESDtrack *postrack1 = (AliESDtrack*)threeTrackArray->UncheckedAt(0);
 966   AliESDtrack *negtrack  = (AliESDtrack*)threeTrackArray->UncheckedAt(1);
 967   AliESDtrack *postrack2 = (AliESDtrack*)threeTrackArray->UncheckedAt(2);
 968
 969   postrack1->PropagateToDCA(secVert,fBzkG,kVeryBig);
 970   negtrack->PropagateToDCA(secVert,fBzkG,kVeryBig);
 971   postrack2->PropagateToDCA(secVert,fBzkG,kVeryBig);
 972   postrack1->GetPxPyPz(momentum);
 973   px[0] = momentum[0]; py[0] = momentum[1]; pz[0] = momentum[2];
 974   negtrack->GetPxPyPz(momentum);
 975   px[1] = momentum[0]; py[1] = momentum[1]; pz[1] = momentum[2];
 976   postrack2->GetPxPyPz(momentum);
 977   px[2] = momentum[0]; py[2] = momentum[1]; pz[2] = momentum[2];
 978
 979   // invariant mass cut for D+, Ds, Lc
 980   Bool_t okMassCut=kFALSE;
 981   if(!okMassCut && f3Prong) if(SelectInvMass(2,3,px,py,pz)) okMassCut=kTRUE;
 982   if(!okMassCut) {
 983     AliDebug(2," candidate didn't pass mass cut");
 984     return 0x0;
 985   }
 986
 987   // primary vertex to be used by this candidate
 988   AliAODVertex *primVertexAOD  = PrimaryVertex(threeTrackArray,event);
 989   if(!primVertexAOD) return 0x0;
 990
 991   Double_t d0z0[2],covd0z0[3];
 992   postrack1->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
 993   d0[0]=d0z0[0];
 994   d0err[0] = TMath::Sqrt(covd0z0[0]);
 995   negtrack->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
 996   d0[1]=d0z0[0];
 997   d0err[1] = TMath::Sqrt(covd0z0[0]);
 998   postrack2->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
 999   d0[2]=d0z0[0];
1000   d0err[2] = TMath::Sqrt(covd0z0[0]);
1001
1002
1003   // create the object AliAODRecoDecayHF3Prong
1004   Double_t pos[3]; primVertexAOD->GetXYZ(pos);
1005   Double_t dca[3]={dcap1n1,dcap2n1,dcap1p2};
1006   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]));
1007   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]));
1008   Short_t charge=(Short_t)(postrack1->Charge()*postrack2->Charge()*negtrack->Charge());
1009   AliAODRecoDecayHF3Prong *the3Prong = new AliAODRecoDecayHF3Prong(secVert,px,py,pz,d0,d0err,dca,dispersion,dist12,dist23,charge);
1010   the3Prong->SetOwnPrimaryVtx(primVertexAOD);
1011   UShort_t id[3]={(UShort_t)postrack1->GetID(),(UShort_t)negtrack->GetID(),(UShort_t)postrack2->GetID()};
1012   the3Prong->SetProngIDs(3,id);
1013
1014   delete primVertexAOD; primVertexAOD=NULL;
1015
1016   // select D+->Kpipi, Ds->KKpi, Lc->pKpi
1017   if(f3Prong) {
1018     ok3Prong = kFALSE;
1019     Int_t ok1,ok2;
1020     if(the3Prong->SelectDplus(fDplusCuts))   ok3Prong = kTRUE;
1021     if(the3Prong->SelectDs(fDsCuts,ok1,ok2)) ok3Prong = kTRUE;
1022     if(the3Prong->SelectLc(fLcCuts,ok1,ok2)) ok3Prong = kTRUE;
1023   }
1024   //if(fDebug) printf("ok3Prong: %d\n",(Int_t)ok3Prong);
1025
1026   if(!fRecoPrimVtxSkippingTrks && !fRmTrksFromPrimVtx) {
1027     the3Prong->UnsetOwnPrimaryVtx();
1028   }
1029
1030   // get PID info from ESD
1031   Double_t esdpid0[5]={0.,0.,0.,0.,0.};
1032   if(postrack1->GetStatus()&AliESDtrack::kESDpid) postrack1->GetESDpid(esdpid0);
1033   Double_t esdpid1[5]={0.,0.,0.,0.,0.};
1034   if(negtrack->GetStatus()&AliESDtrack::kESDpid) negtrack->GetESDpid(esdpid1);
1035   Double_t esdpid2[5]={0.,0.,0.,0.,0.};
1036   if(postrack2->GetStatus()&AliESDtrack::kESDpid) postrack2->GetESDpid(esdpid2);
1037
1038   Double_t esdpid[15];
1039   for(Int_t i=0;i<5;i++) {
1040     esdpid[i]    = esdpid0[i];
1041     esdpid[5+i]  = esdpid1[i];
1042     esdpid[10+i] = esdpid2[i];
1043   }
1044   the3Prong->SetPID(3,esdpid);
1045
1046   return the3Prong;
1047 }
1048 //----------------------------------------------------------------------------
1049 AliAODRecoDecayHF4Prong* AliAnalysisVertexingHF::Make4Prong(
1050                              TObjArray *fourTrackArray,AliVEvent *event,
1051                              AliAODVertex *secVert,
1052                              AliAODVertex *vertexp1n1,
1053                              AliAODVertex *vertexp1n1p2,
1054                              Double_t dcap1n1,Double_t dcap1n2,
1055                              Double_t dcap2n1,Double_t dcap2n2,
1056                              Bool_t &ok4Prong) const
1057 {
1058   // Make 4Prong candidates and check if they pass D0toKpipipi
1059   // reconstruction cuts
1060   // G.E.Bruno, R.Romita
1061
1062   ok4Prong=kFALSE;
1063   if(!secVert || !vertexp1n1 || !vertexp1n1p2) return 0x0;
1064
1065   Double_t px[4],py[4],pz[4],d0[4],d0err[4];//d0z[3];
1066
1067   AliESDtrack *postrack1 = (AliESDtrack*)fourTrackArray->UncheckedAt(0);
1068   AliESDtrack *negtrack1 = (AliESDtrack*)fourTrackArray->UncheckedAt(1);
1069   AliESDtrack *postrack2 = (AliESDtrack*)fourTrackArray->UncheckedAt(2);
1070   AliESDtrack *negtrack2 = (AliESDtrack*)fourTrackArray->UncheckedAt(3);
1071
1072   postrack1->PropagateToDCA(secVert,fBzkG,kVeryBig);
1073   negtrack1->PropagateToDCA(secVert,fBzkG,kVeryBig);
1074   postrack2->PropagateToDCA(secVert,fBzkG,kVeryBig);
1075   negtrack2->PropagateToDCA(secVert,fBzkG,kVeryBig);
1076
1077   Double_t momentum[3];
1078   postrack1->GetPxPyPz(momentum);
1079   px[0] = momentum[0]; py[0] = momentum[1]; pz[0] = momentum[2];
1080   negtrack1->GetPxPyPz(momentum);
1081   px[1] = momentum[0]; py[1] = momentum[1]; pz[1] = momentum[2];
1082   postrack2->GetPxPyPz(momentum);
1083   px[2] = momentum[0]; py[2] = momentum[1]; pz[2] = momentum[2];
1084   negtrack2->GetPxPyPz(momentum);
1085   px[3] = momentum[0]; py[3] = momentum[1]; pz[3] = momentum[2];
1086
1087   // invariant mass cut for rho or D0 (try to improve coding here..)
1088   Bool_t okMassCut=kFALSE;
1089   if(!okMassCut && fD0to4ProngsCuts[8]==0.){      //no PID, to be implemented with PID
1090     if(SelectInvMass(4,4,px,py,pz)) okMassCut=kTRUE;
1091   }
1092   if(!okMassCut) {
1093     //if(fDebug) printf(" candidate didn't pass mass cut\n");
1094     //printf(" candidate didn't pass mass cut\n");
1095     return 0x0;
1096   }
1097
1098   // primary vertex to be used by this candidate
1099   AliAODVertex *primVertexAOD  = PrimaryVertex(fourTrackArray,event);
1100   if(!primVertexAOD) return 0x0;
1101
1102   Double_t d0z0[2],covd0z0[3];
1103   postrack1->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
1104   d0[0]=d0z0[0];
1105   d0err[0] = TMath::Sqrt(covd0z0[0]);
1106   negtrack1->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
1107   d0[1]=d0z0[0];
1108   d0err[1] = TMath::Sqrt(covd0z0[0]);
1109   postrack2->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
1110   d0[2]=d0z0[0];
1111   d0err[2] = TMath::Sqrt(covd0z0[0]);
1112   negtrack2->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
1113   d0[3]=d0z0[0];
1114   d0err[3] = TMath::Sqrt(covd0z0[0]);
1115
1116
1117   // create the object AliAODRecoDecayHF4Prong
1118   Double_t pos[3]; primVertexAOD->GetXYZ(pos);
1119   Double_t dca[6]={dcap1n1,0.,dcap1n2,dcap2n1,0.,dcap2n2};
1120   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]));
1121   Double_t dist3=TMath::Sqrt((vertexp1n1p2->GetX()-pos[0])*(vertexp1n1p2->GetX()-pos[0])+(vertexp1n1p2->GetY()-pos[1])*(vertexp1n1p2->GetY()-pos[1])+(vertexp1n1p2->GetZ()-pos[2])*(vertexp1n1p2->GetZ()-pos[2]));
1122   Double_t dist4=TMath::Sqrt((secVert->GetX()-pos[0])*(secVert->GetX()-pos[0])+(secVert->GetY()-pos[1])*(secVert->GetY()-pos[1])+(secVert->GetZ()-pos[2])*(secVert->GetZ()-pos[2]));
1123   Short_t charge=0;
1124   AliAODRecoDecayHF4Prong *the4Prong = new AliAODRecoDecayHF4Prong(secVert,px,py,pz,d0,d0err,dca,dist12,dist3,dist4,charge);
1125   the4Prong->SetOwnPrimaryVtx(primVertexAOD);
1126   UShort_t id[4]={(UShort_t)postrack1->GetID(),(UShort_t)negtrack1->GetID(),(UShort_t)postrack2->GetID(),(UShort_t)negtrack2->GetID()};
1127   the4Prong->SetProngIDs(4,id);
1128
1129   delete primVertexAOD; primVertexAOD=NULL;
1130
1131   Int_t checkD0,checkD0bar;
1132   ok4Prong=the4Prong->SelectD0(fD0to4ProngsCuts,checkD0,checkD0bar);
1133
1134   if(!fRecoPrimVtxSkippingTrks && !fRmTrksFromPrimVtx) {
1135     the4Prong->UnsetOwnPrimaryVtx();
1136   }
1137
1138
1139   // get PID info from ESD
1140   Double_t esdpid0[5]={0.,0.,0.,0.,0.};
1141   if(postrack1->GetStatus()&AliESDtrack::kESDpid) postrack1->GetESDpid(esdpid0);
1142   Double_t esdpid1[5]={0.,0.,0.,0.,0.};
1143   if(negtrack1->GetStatus()&AliESDtrack::kESDpid) negtrack1->GetESDpid(esdpid1);
1144   Double_t esdpid2[5]={0.,0.,0.,0.,0.};
1145   if(postrack2->GetStatus()&AliESDtrack::kESDpid) postrack2->GetESDpid(esdpid2);
1146   Double_t esdpid3[5]={0.,0.,0.,0.,0.};
1147   if(negtrack2->GetStatus()&AliESDtrack::kESDpid) negtrack2->GetESDpid(esdpid3);
1148
1149   Double_t esdpid[20];
1150   for(Int_t i=0;i<5;i++) {
1151     esdpid[i]    = esdpid0[i];
1152     esdpid[5+i]  = esdpid1[i];
1153     esdpid[10+i] = esdpid2[i];
1154     esdpid[15+i] = esdpid3[i];
1155   }
1156   the4Prong->SetPID(4,esdpid);
1157
1158   return the4Prong;
1159 }
1160 //-----------------------------------------------------------------------------
1161 AliAODVertex* AliAnalysisVertexingHF::PrimaryVertex(TObjArray *trkArray,
1162                                                     AliVEvent *event) const
1163 {
1164   // Returns primary vertex to be used for this candidate
1165
1166   AliESDVertex *vertexESD = 0;
1167   AliAODVertex *vertexAOD = 0;
1168
1169
1170   if(!fRecoPrimVtxSkippingTrks && !fRmTrksFromPrimVtx) {
1171     // primary vertex from the input event
1172
1173     vertexESD = new AliESDVertex(*fV1);
1174
1175   } else {
1176     // primary vertex specific to this candidate
1177
1178     Int_t nTrks = trkArray->GetEntriesFast();
1179     AliVertexerTracks *vertexer = new AliVertexerTracks(event->GetMagneticField());
1180
1181     if(fRecoPrimVtxSkippingTrks) {
1182       // recalculating the vertex
1183
1184       if(strstr(fV1->GetTitle(),"VertexerTracksWithConstraint")) {
1185         Float_t diamondcovxy[3];
1186         event->GetDiamondCovXY(diamondcovxy);
1187         Double_t pos[3]={event->GetDiamondX(),event->GetDiamondY(),0.};
1188         Double_t cov[6]={diamondcovxy[0],diamondcovxy[1],diamondcovxy[2],0.,0.,10.};
1189         AliESDVertex *diamond = new AliESDVertex(pos,cov,1.,1);
1190         vertexer->SetVtxStart(diamond);
1191         delete diamond; diamond=NULL;
1192         if(strstr(fV1->GetTitle(),"VertexerTracksWithConstraintOnlyFitter"))
1193           vertexer->SetOnlyFitter();
1194       }
1195       Int_t skipped[1000];
1196       Int_t nTrksToSkip=0,id;
1197       AliExternalTrackParam *t = 0;
1198       for(Int_t i=0; i<nTrks; i++) {
1199         t = (AliExternalTrackParam*)trkArray->UncheckedAt(i);
1200         id = (Int_t)t->GetID();
1201         if(id<0) continue;
1202         skipped[nTrksToSkip++] = id;
1203       }
1204       // TEMPORARY FIX
1205       // For AOD, skip also tracks without covariance matrix
1206       if(fInputAOD) {
1207         Double_t covtest[21];
1208         for(Int_t j=0; j<event->GetNumberOfTracks(); j++) {
1209           AliVTrack *vtrack = (AliVTrack*)event->GetTrack(j);
1210           if(!vtrack->GetCovarianceXYZPxPyPz(covtest)) {
1211             id = (Int_t)t->GetID();
1212             if(id<0) continue;
1213             skipped[nTrksToSkip++] = id;
1214           }
1215         }
1216       }
1217       //
1218       vertexer->SetSkipTracks(nTrksToSkip,skipped);
1219       vertexESD = (AliESDVertex*)vertexer->FindPrimaryVertex(event);
1220
1221     } else if(fRmTrksFromPrimVtx) {
1222       // removing the prongs tracks
1223
1224       TObjArray rmArray(nTrks);
1225       UShort_t *rmId = new UShort_t[nTrks];
1226       AliESDtrack *esdTrack = 0;
1227       AliESDtrack *t = 0;
1228       for(Int_t i=0; i<nTrks; i++) {
1229         t = (AliESDtrack*)trkArray->UncheckedAt(i);
1230         esdTrack = new AliESDtrack(*t);
1231         rmArray.AddLast(esdTrack);
1232         if(esdTrack->GetID()>=0) {
1233           rmId[i]=(UShort_t)esdTrack->GetID();
1234         } else {
1235           rmId[i]=9999;
1236         }
1237       }
1238       Float_t diamondxy[2]={event->GetDiamondX(),event->GetDiamondY()};
1239       vertexESD = vertexer->RemoveTracksFromVertex(fV1,&rmArray,rmId,diamondxy);
1240       delete [] rmId; rmId=NULL;
1241       rmArray.Delete();
1242
1243     }
1244
1245     if(!vertexESD) return vertexAOD;
1246     if(vertexESD->GetNContributors()<=0) {
1247       AliDebug(2,"vertexing failed");
1248       delete vertexESD; vertexESD=NULL;
1249       return vertexAOD;
1250     }
1251
1252     delete vertexer; vertexer=NULL;
1253
1254   }
1255
1256   // convert to AliAODVertex
1257   Double_t pos[3],cov[6],chi2perNDF;
1258   vertexESD->GetXYZ(pos); // position
1259   vertexESD->GetCovMatrix(cov); //covariance matrix
1260   chi2perNDF = vertexESD->GetChi2toNDF();
1261   delete vertexESD; vertexESD=NULL;
1262
1263   vertexAOD = new AliAODVertex(pos,cov,chi2perNDF);
1264
1265   return vertexAOD;
1266 }
1267 //-----------------------------------------------------------------------------
1268 void AliAnalysisVertexingHF::PrintStatus() const {
1269   // Print parameters being used
1270
1271   //printf("Preselections:\n");
1272   //   fTrackFilter->Dump();
1273   if(fSecVtxWithKF) {
1274     printf("Secondary vertex with Kalman filter package (AliKFParticle)\n");
1275   } else {
1276     printf("Secondary vertex with AliVertexerTracks\n");
1277   }
1278   if(fRecoPrimVtxSkippingTrks) printf("RecoPrimVtxSkippingTrks\n");
1279   if(fRmTrksFromPrimVtx) printf("RmTrksFromPrimVtx\n");
1280   if(fD0toKpi) {
1281     printf("Reconstruct D0->Kpi candidates with cuts:\n");
1282     printf("    |M-MD0| [GeV]    < %f\n",fD0toKpiCuts[0]);
1283     printf("    dca    [cm]  < %f\n",fD0toKpiCuts[1]);
1284     printf("    cosThetaStar     < %f\n",fD0toKpiCuts[2]);
1285     printf("    pTK     [GeV/c]    > %f\n",fD0toKpiCuts[3]);
1286     printf("    pTpi    [GeV/c]    > %f\n",fD0toKpiCuts[4]);
1287     printf("    |d0K|  [cm]  < %f\n",fD0toKpiCuts[5]);
1288     printf("    |d0pi| [cm]  < %f\n",fD0toKpiCuts[6]);
1289     printf("    d0d0  [cm^2] < %f\n",fD0toKpiCuts[7]);
1290     printf("    cosThetaPoint    > %f\n",fD0toKpiCuts[8]);
1291   }
1292   if(fDstar) {
1293     if(fFindVertexForDstar) {
1294       printf("    Reconstruct a secondary vertex for the D*\n");
1295     } else {
1296       printf("    Assume the D* comes from the primary vertex\n");
1297     }
1298     printf("    |M-MD*| [GeV]    < %f\n",fDstarCuts[0]);
1299     printf("    |M_Kpipi-M_Kpi-(MD*-MD0)| [GeV]  < %f\n",fDstarCuts[1]);
1300     printf("    pTpisoft [GeV/c]    > %f\n",fDstarCuts[2]);
1301     printf("    pTpisoft [GeV/c]    < %f\n",fDstarCuts[3]);
1302     printf("    Theta(pisoft,D0plane) < %f\n",fDstarCuts[4]);
1303     printf("Reconstruct D*->D0pi candidates with cuts:\n");
1304     printf("   D0 from D* cuts:\n");
1305     printf("    |M-MD0| [GeV]    < %f\n",fD0fromDstarCuts[0]);
1306     printf("    dca    [cm]  < %f\n",fD0fromDstarCuts[1]);
1307     printf("    cosThetaStar     < %f\n",fD0fromDstarCuts[2]);
1308     printf("    pTK     [GeV/c]    > %f\n",fD0fromDstarCuts[3]);
1309     printf("    pTpi    [GeV/c]    > %f\n",fD0fromDstarCuts[4]);
1310     printf("    |d0K|  [cm]  < %f\n",fD0fromDstarCuts[5]);
1311     printf("    |d0pi| [cm]  < %f\n",fD0fromDstarCuts[6]);
1312     printf("    d0d0  [cm^2] < %f\n",fD0fromDstarCuts[7]);
1313     printf("    cosThetaPoint    > %f\n",fD0fromDstarCuts[8]);
1314   }
1315   if(fJPSItoEle) {
1316     printf("Reconstruct J/psi from B candidates with cuts:\n");
1317     printf("    |M-MJPSI| [GeV]    < %f\n",fBtoJPSICuts[0]);
1318     printf("    dca    [cm]  < %f\n",fBtoJPSICuts[1]);
1319     printf("    cosThetaStar     < %f\n",fBtoJPSICuts[2]);
1320     printf("    pTP     [GeV/c]    > %f\n",fBtoJPSICuts[3]);
1321     printf("    pTN    [GeV/c]    > %f\n",fBtoJPSICuts[4]);
1322     printf("    |d0P|  [cm]  < %f\n",fBtoJPSICuts[5]);
1323     printf("    |d0N| [cm]  < %f\n",fBtoJPSICuts[6]);
1324     printf("    d0d0  [cm^2] < %f\n",fBtoJPSICuts[7]);
1325     printf("    cosThetaPoint    > %f\n",fBtoJPSICuts[8]);
1326   }
1327   if(f3Prong) {
1328     printf("Reconstruct 3 prong candidates.\n");
1329     printf("  D+->Kpipi cuts:\n");
1330     printf("    |M-MD+| [GeV]    < %f\n",fDplusCuts[0]);
1331     printf("    pTK     [GeV/c]    > %f\n",fDplusCuts[1]);
1332     printf("    pTPi    [GeV/c]    > %f\n",fDplusCuts[2]);
1333     printf("    |d0K|  [cm]  > %f\n",fDplusCuts[3]);
1334     printf("    |d0Pi| [cm]  > %f\n",fDplusCuts[4]);
1335     printf("    dist12    [cm]  < %f\n",fDplusCuts[5]);
1336     printf("    sigmavert [cm]   < %f\n",fDplusCuts[6]);
1337     printf("    dist prim-sec [cm] > %f\n",fDplusCuts[7]);
1338     printf("    pM=Max{pT1,pT2,pT3} [GeV/c] > %f\n",fDplusCuts[8]);
1339     printf("    cosThetaPoint    > %f\n",fDplusCuts[9]);
1340     printf("    Sum d0^2 [cm^2]  > %f\n",fDplusCuts[10]);
1341     printf("    dca cut [cm]  < %f\n",fDplusCuts[11]);
1342     printf("  Ds->KKpi cuts:\n");
1343     printf("    |M-MDs| [GeV]    < %f\n",fDsCuts[0]);
1344     printf("    pTK     [GeV/c]    > %f\n",fDsCuts[1]);
1345     printf("    pTPi    [GeV/c]    > %f\n",fDsCuts[2]);
1346     printf("    |d0K|  [cm]  > %f\n",fDsCuts[3]);
1347     printf("    |d0Pi| [cm]  > %f\n",fDsCuts[4]);
1348     printf("    dist12    [cm]  < %f\n",fDsCuts[5]);
1349     printf("    sigmavert [cm]   < %f\n",fDsCuts[6]);
1350     printf("    dist prim-sec [cm] > %f\n",fDsCuts[7]);
1351     printf("    pM=Max{pT1,pT2,pT3} [GeV/c] > %f\n",fDsCuts[8]);
1352     printf("    cosThetaPoint    > %f\n",fDsCuts[9]);
1353     printf("    Sum d0^2 [cm^2]  > %f\n",fDsCuts[10]);
1354     printf("    dca cut [cm]  < %f\n",fDsCuts[11]);
1355     printf("    Inv. Mass  phi/K0* [GeV]  < %f\n",fDsCuts[12]);
1356     printf("  Lc->pKpi cuts:\n");
1357     printf("    |M-MLc| [GeV]    < %f\n",fLcCuts[0]);
1358     printf("    pTP     [GeV/c]    > %f\n",fLcCuts[1]);
1359     printf("    pTPi and pTK [GeV/c]    > %f\n",fLcCuts[2]);
1360     printf("    |d0P|  [cm]  > %f\n",fLcCuts[3]);
1361     printf("    |d0Pi| and |d0K| [cm]  > %f\n",fLcCuts[4]);
1362     printf("    dist12    [cm]  < %f\n",fLcCuts[5]);
1363     printf("    sigmavert [cm]   < %f\n",fLcCuts[6]);
1364     printf("    dist prim-sec [cm] > %f\n",fLcCuts[7]);
1365     printf("    pM=Max{pT1,pT2,pT3} [GeV/c] > %f\n",fLcCuts[8]);
1366     printf("    cosThetaPoint    > %f\n",fLcCuts[9]);
1367     printf("    Sum d0^2 [cm^2]  > %f\n",fLcCuts[10]);
1368     printf("    dca cut [cm]  < %f\n",fLcCuts[11]);
1369   }
1370
1371   return;
1372 }
1373 //-----------------------------------------------------------------------------
1374 AliAODVertex* AliAnalysisVertexingHF::ReconstructSecondaryVertex(TObjArray *trkArray,
1375                                                                  Double_t &dispersion,Bool_t useTRefArray) const
1376 {
1377   // Secondary vertex reconstruction with AliVertexerTracks or AliKFParticle
1378
1379   AliESDVertex *vertexESD = 0;
1380   AliAODVertex *vertexAOD = 0;
1381
1382   if(!fSecVtxWithKF) { // AliVertexerTracks
1383
1384     AliVertexerTracks *vertexer = new AliVertexerTracks(fBzkG);
1385     vertexer->SetVtxStart(fV1);
1386     vertexESD = (AliESDVertex*)vertexer->VertexForSelectedESDTracks(trkArray);
1387     delete vertexer; vertexer=NULL;
1388
1389     if(!vertexESD) return vertexAOD;
1390
1391     if(vertexESD->GetNContributors()!=trkArray->GetEntriesFast()) {
1392       AliDebug(2,"vertexing failed");
1393       delete vertexESD; vertexESD=NULL;
1394       return vertexAOD;
1395     }
1396
1397   } else { // Kalman Filter vertexer (AliKFParticle)
1398
1399     AliKFParticle::SetField(fBzkG);
1400
1401     AliKFVertex vertexKF;
1402
1403     Int_t nTrks = trkArray->GetEntriesFast();
1404     for(Int_t i=0; i<nTrks; i++) {
1405       AliESDtrack *esdTrack = (AliESDtrack*)trkArray->At(i);
1406       AliKFParticle daughterKF(*esdTrack,211);
1407       vertexKF.AddDaughter(daughterKF);
1408     }
1409     vertexESD = new AliESDVertex(vertexKF.Parameters(),
1410                                  vertexKF.CovarianceMatrix(),
1411                                  vertexKF.GetChi2(),
1412                                  vertexKF.GetNContributors());
1413
1414   }
1415
1416   // convert to AliAODVertex
1417   Double_t pos[3],cov[6],chi2perNDF;
1418   vertexESD->GetXYZ(pos); // position
1419   vertexESD->GetCovMatrix(cov); //covariance matrix
1420   chi2perNDF = vertexESD->GetChi2toNDF();
1421   dispersion = vertexESD->GetDispersion();
1422   delete vertexESD; vertexESD=NULL;
1423
1424   Int_t nprongs= (useTRefArray ? 0 : trkArray->GetEntriesFast());
1425   vertexAOD = new AliAODVertex(pos,cov,chi2perNDF,0x0,-1,AliAODVertex::kUndef,nprongs);
1426
1427   return vertexAOD;
1428 }
1429 //-----------------------------------------------------------------------------
1430 Bool_t AliAnalysisVertexingHF::SelectInvMass(Int_t decay,
1431                                              Int_t nprongs,
1432                                              Double_t *px,
1433                                              Double_t *py,
1434                                              Double_t *pz) const {
1435   // Check invariant mass cut
1436
1437   Short_t dummycharge=0;
1438   Double_t *dummyd0 = new Double_t[nprongs];
1439   for(Int_t ip=0;ip<nprongs;ip++) dummyd0[ip]=0.;
1440   AliAODRecoDecay *rd = new AliAODRecoDecay(0x0,nprongs,dummycharge,px,py,pz,dummyd0);
1441   delete [] dummyd0; dummyd0=NULL;
1442
1443   UInt_t pdg2[2],pdg3[3],pdg4[4];
1444   Double_t mPDG,minv;
1445
1446   Bool_t retval=kFALSE;
1447   switch (decay)
1448     {
1449     case 0:                  // D0->Kpi
1450       pdg2[0]=211; pdg2[1]=321;
1451       mPDG=TDatabasePDG::Instance()->GetParticle(421)->Mass();
1452       minv = rd->InvMass(nprongs,pdg2);
1453       if(TMath::Abs(minv-mPDG)<fD0toKpiCuts[0]) retval=kTRUE;
1454       pdg2[0]=321; pdg2[1]=211;
1455       minv = rd->InvMass(nprongs,pdg2);
1456       if(TMath::Abs(minv-mPDG)<fD0toKpiCuts[0]) retval=kTRUE;
1457       break;
1458     case 1:                  // JPSI->ee
1459       pdg2[0]=11; pdg2[1]=11;
1460       mPDG=TDatabasePDG::Instance()->GetParticle(443)->Mass();
1461       minv = rd->InvMass(nprongs,pdg2);
1462       if(TMath::Abs(minv-mPDG)<fBtoJPSICuts[0]) retval=kTRUE;
1463       break;
1464     case 2:                  // D+->Kpipi
1465       pdg3[0]=211; pdg3[1]=321; pdg3[2]=211;
1466       mPDG=TDatabasePDG::Instance()->GetParticle(411)->Mass();
1467       minv = rd->InvMass(nprongs,pdg3);
1468       if(TMath::Abs(minv-mPDG)<fDplusCuts[0]) retval=kTRUE;
1469                             // Ds+->KKpi
1470       pdg3[0]=321; pdg3[1]=321; pdg3[2]=211;
1471       mPDG=TDatabasePDG::Instance()->GetParticle(431)->Mass();
1472       minv = rd->InvMass(nprongs,pdg3);
1473       if(TMath::Abs(minv-mPDG)<fDsCuts[0]) retval=kTRUE;
1474       pdg3[0]=211; pdg3[1]=321; pdg3[2]=321;
1475       minv = rd->InvMass(nprongs,pdg3);
1476       if(TMath::Abs(minv-mPDG)<fDsCuts[0]) retval=kTRUE;
1477                             // Lc->pKpi
1478       pdg3[0]=2212; pdg3[1]=321; pdg3[2]=211;
1479       mPDG=TDatabasePDG::Instance()->GetParticle(4122)->Mass();
1480       minv = rd->InvMass(nprongs,pdg3);
1481       if(TMath::Abs(minv-mPDG)<fLcCuts[0]) retval=kTRUE;
1482       pdg3[0]=211; pdg3[1]=321; pdg3[2]=2212;
1483       minv = rd->InvMass(nprongs,pdg3);
1484       if(TMath::Abs(minv-mPDG)<fLcCuts[0]) retval=kTRUE;
1485       break;
1486     case 3:                  // D*->D0pi
1487       pdg2[0]=421; pdg2[1]=211;
1488       mPDG=TDatabasePDG::Instance()->GetParticle(413)->Mass();
1489       minv = rd->InvMass(nprongs,pdg2);
1490       if(TMath::Abs(minv-mPDG)<fDstarCuts[0]) retval=kTRUE;
1491       break;
1492     case 4:                 // D0->K3pi without PID
1493       pdg4[0]=321; pdg4[1]=211; pdg4[2]=211; pdg4[3]=211;
1494       mPDG=TDatabasePDG::Instance()->GetParticle(421)->Mass();
1495       minv = rd->InvMass(nprongs,pdg4);
1496       if(TMath::Abs(minv-mPDG)<fD0to4ProngsCuts[0])
1497         retval=kTRUE;
1498       pdg4[0]=211; pdg4[1]=321; pdg4[2]=211; pdg4[3]=211;
1499       mPDG=TDatabasePDG::Instance()->GetParticle(421)->Mass();
1500       minv = rd->InvMass(nprongs,pdg4);
1501       if(TMath::Abs(minv-mPDG)<fD0to4ProngsCuts[0]) retval=kTRUE;
1502       pdg4[0]=211; pdg4[1]=211; pdg4[2]=321; pdg4[3]=211;
1503       mPDG=TDatabasePDG::Instance()->GetParticle(421)->Mass();
1504       minv = rd->InvMass(nprongs,pdg4);
1505       if(TMath::Abs(minv-mPDG)<fD0to4ProngsCuts[0]) retval=kTRUE;
1506       pdg4[0]=211; pdg4[1]=211; pdg4[2]=211; pdg4[3]=321;
1507       mPDG=TDatabasePDG::Instance()->GetParticle(421)->Mass();
1508       minv = rd->InvMass(nprongs,pdg4);
1509       if(TMath::Abs(minv-mPDG)<fD0to4ProngsCuts[0]) retval=kTRUE;
1510       break;
1511     default:
1512       printf("SelectInvMass(): wrong decay selection\n");
1513       break;
1514     }
1515
1516   delete rd; rd=NULL;
1517
1518   return retval;
1519 }
1520 //-----------------------------------------------------------------------------
1521 void AliAnalysisVertexingHF::SelectTracksAndCopyVertex(AliVEvent *event,
1522                                    TObjArray &seleTrksArray,Int_t &nSeleTrks,
1523                                                        UChar_t *seleFlags)
1524 {
1525   // Apply single-track preselection.
1526   // Fill a TObjArray with selected tracks (for displaced vertices or
1527   // soft pion from D*). Selection flag stored in seleFlags.
1528   // Create the AliESDVertex object (convert from AliAODVertex if necessary)
1529   // In case of AOD input, also fill fAODMap for track index<->ID
1530
1531   const AliVVertex *vprimary = event->GetPrimaryVertex();
1532
1533   if(fV1) { delete fV1; fV1=NULL; }
1534   if(fAODMap) { delete [] fAODMap; fAODMap=NULL; }
1535
1536   Int_t nindices=0;
1537   UShort_t *indices = 0;
1538   Double_t pos[3],cov[6];
1539
1540   if(!fInputAOD) { // ESD
1541     fV1 = new AliESDVertex(*((AliESDVertex*)vprimary));
1542   } else {         // AOD
1543     vprimary->GetXYZ(pos);
1544     vprimary->GetCovarianceMatrix(cov);
1545     fV1 = new AliESDVertex(pos,cov,100.,100,vprimary->GetName());
1546     indices = new UShort_t[event->GetNumberOfTracks()];
1547     fAODMap = new Int_t[100000];
1548   }
1549
1550
1551   Int_t entries = (Int_t)event->GetNumberOfTracks();
1552   Bool_t okDisplaced=kFALSE,okSoftPi=kFALSE;
1553   nSeleTrks=0;
1554
1555   // transfer ITS tracks from event to arrays
1556   for(Int_t i=0; i<entries; i++) {
1557     AliVTrack *track = (AliVTrack*)event->GetTrack(i);
1558
1559     // TEMPORARY: check that the cov matrix is there
1560     Double_t covtest[21];
1561     if(!track->GetCovarianceXYZPxPyPz(covtest)) continue;
1562     //
1563
1564     if(fInputAOD) {
1565       AliAODTrack *aodt = (AliAODTrack*)track;
1566       if(aodt->GetUsedForPrimVtxFit()) {
1567         indices[nindices]=aodt->GetID(); nindices++;
1568       }
1569       fAODMap[(Int_t)aodt->GetID()] = i;
1570     }
1571
1572     AliESDtrack *esdt = 0;
1573
1574     if(!fInputAOD) {
1575       esdt = (AliESDtrack*)track;
1576     } else {
1577       esdt = new AliESDtrack(track);
1578     }
1579
1580     // single track selection
1581     okDisplaced=kFALSE; okSoftPi=kFALSE;
1582     if(SingleTrkCuts(esdt,okDisplaced,okSoftPi)) {
1583       seleTrksArray.AddLast(esdt);
1584       seleFlags[nSeleTrks]=0;
1585       if(okDisplaced) SETBIT(seleFlags[nSeleTrks],kBitDispl);
1586       if(okSoftPi)    SETBIT(seleFlags[nSeleTrks],kBitSoftPi);
1587       nSeleTrks++;
1588     } else {
1589       if(fInputAOD) delete esdt;
1590       esdt = NULL;
1591       continue;
1592     }
1593
1594   } // end loop on tracks
1595
1596   // primary vertex from AOD
1597   if(fInputAOD) {
1598     delete fV1; fV1=NULL;
1599     vprimary->GetXYZ(pos);
1600     vprimary->GetCovarianceMatrix(cov);
1601     Double_t chi2toNDF = vprimary->GetChi2perNDF();
1602     Int_t ncontr=nindices;
1603     if(!strcmp(vprimary->GetTitle(),"VertexerTracksWithContraint")) ncontr += 1;
1604     Double_t chi2=chi2toNDF*(2.*(Double_t)ncontr-3.);
1605     fV1 = new AliESDVertex(pos,cov,chi2,ncontr,vprimary->GetName());
1606     fV1->SetTitle(vprimary->GetTitle());
1607     fV1->SetIndices(nindices,indices);
1608   }
1609   if(indices) { delete [] indices; indices=NULL; }
1610
1611
1612   return;
1613 }
1614 //-----------------------------------------------------------------------------
1615 void AliAnalysisVertexingHF::SetD0toKpiCuts(Double_t cut0,Double_t cut1,
1616                                    Double_t cut2,Double_t cut3,Double_t cut4,
1617                                    Double_t cut5,Double_t cut6,
1618                                    Double_t cut7,Double_t cut8)
1619 {
1620   // Set the cuts for D0 selection
1621   fD0toKpiCuts[0] = cut0;
1622   fD0toKpiCuts[1] = cut1;
1623   fD0toKpiCuts[2] = cut2;
1624   fD0toKpiCuts[3] = cut3;
1625   fD0toKpiCuts[4] = cut4;
1626   fD0toKpiCuts[5] = cut5;
1627   fD0toKpiCuts[6] = cut6;
1628   fD0toKpiCuts[7] = cut7;
1629   fD0toKpiCuts[8] = cut8;
1630
1631   return;
1632 }
1633 //-----------------------------------------------------------------------------
1634 void AliAnalysisVertexingHF::SetD0toKpiCuts(const Double_t cuts[9])
1635 {
1636   // Set the cuts for D0 selection
1637
1638   for(Int_t i=0; i<9; i++) fD0toKpiCuts[i] = cuts[i];
1639
1640   return;
1641 }
1642 //-----------------------------------------------------------------------------
1643 void AliAnalysisVertexingHF::SetD0fromDstarCuts(Double_t cut0,Double_t cut1,
1644                                    Double_t cut2,Double_t cut3,Double_t cut4,
1645                                    Double_t cut5,Double_t cut6,
1646                                    Double_t cut7,Double_t cut8)
1647 {
1648   // Set the cuts for D0 from D* selection
1649   fD0fromDstarCuts[0] = cut0;
1650   fD0fromDstarCuts[1] = cut1;
1651   fD0fromDstarCuts[2] = cut2;
1652   fD0fromDstarCuts[3] = cut3;
1653   fD0fromDstarCuts[4] = cut4;
1654   fD0fromDstarCuts[5] = cut5;
1655   fD0fromDstarCuts[6] = cut6;
1656   fD0fromDstarCuts[7] = cut7;
1657   fD0fromDstarCuts[8] = cut8;
1658
1659   return;
1660 }
1661 //-----------------------------------------------------------------------------
1662 void AliAnalysisVertexingHF::SetD0fromDstarCuts(const Double_t cuts[9])
1663 {
1664   // Set the cuts for D0 from D* selection
1665
1666   for(Int_t i=0; i<9; i++) fD0fromDstarCuts[i] = cuts[i];
1667
1668   return;
1669 }
1670 //-----------------------------------------------------------------------------
1671 void AliAnalysisVertexingHF::SetDstarCuts(Double_t cut0,Double_t cut1,
1672                                           Double_t cut2,Double_t cut3,
1673                                           Double_t cut4)
1674 {
1675   // Set the cuts for D* selection
1676   fDstarCuts[0] = cut0;
1677   fDstarCuts[1] = cut1;
1678   fDstarCuts[2] = cut2;
1679   fDstarCuts[3] = cut3;
1680   fDstarCuts[4] = cut4;
1681
1682   return;
1683 }
1684 //-----------------------------------------------------------------------------
1685 void AliAnalysisVertexingHF::SetDstarCuts(const Double_t cuts[5])
1686 {
1687   // Set the cuts for D* selection
1688
1689   for(Int_t i=0; i<5; i++) fDstarCuts[i] = cuts[i];
1690
1691   return;
1692 }
1693 //-----------------------------------------------------------------------------
1694 void AliAnalysisVertexingHF::SetBtoJPSICuts(Double_t cut0,Double_t cut1,
1695                                    Double_t cut2,Double_t cut3,Double_t cut4,
1696                                    Double_t cut5,Double_t cut6,
1697                                    Double_t cut7,Double_t cut8)
1698 {
1699   // Set the cuts for J/psi from B selection
1700   fBtoJPSICuts[0] = cut0;
1701   fBtoJPSICuts[1] = cut1;
1702   fBtoJPSICuts[2] = cut2;
1703   fBtoJPSICuts[3] = cut3;
1704   fBtoJPSICuts[4] = cut4;
1705   fBtoJPSICuts[5] = cut5;
1706   fBtoJPSICuts[6] = cut6;
1707   fBtoJPSICuts[7] = cut7;
1708   fBtoJPSICuts[8] = cut8;
1709
1710   return;
1711 }
1712 //-----------------------------------------------------------------------------
1713 void AliAnalysisVertexingHF::SetBtoJPSICuts(const Double_t cuts[9])
1714 {
1715   // Set the cuts for J/psi from B selection
1716
1717   for(Int_t i=0; i<9; i++) fBtoJPSICuts[i] = cuts[i];
1718
1719   return;
1720 }
1721 //-----------------------------------------------------------------------------
1722 void AliAnalysisVertexingHF::SetDplusCuts(Double_t cut0,Double_t cut1,
1723                                    Double_t cut2,Double_t cut3,Double_t cut4,
1724                                    Double_t cut5,Double_t cut6,
1725                                    Double_t cut7,Double_t cut8,
1726                                    Double_t cut9,Double_t cut10,Double_t cut11)
1727 {
1728   // Set the cuts for Dplus->Kpipi selection
1729   fDplusCuts[0] = cut0;
1730   fDplusCuts[1] = cut1;
1731   fDplusCuts[2] = cut2;
1732   fDplusCuts[3] = cut3;
1733   fDplusCuts[4] = cut4;
1734   fDplusCuts[5] = cut5;
1735   fDplusCuts[6] = cut6;
1736   fDplusCuts[7] = cut7;
1737   fDplusCuts[8] = cut8;
1738   fDplusCuts[9] = cut9;
1739   fDplusCuts[10] = cut10;
1740   fDplusCuts[11] = cut11;
1741
1742   return;
1743 }
1744 //-----------------------------------------------------------------------------
1745 void AliAnalysisVertexingHF::SetDplusCuts(const Double_t cuts[12])
1746 {
1747   // Set the cuts for Dplus->Kpipi selection
1748
1749   for(Int_t i=0; i<12; i++) fDplusCuts[i] = cuts[i];
1750
1751   return;
1752 }
1753 //-----------------------------------------------------------------------------
1754 void AliAnalysisVertexingHF::SetDsCuts(Double_t cut0,Double_t cut1,
1755                                    Double_t cut2,Double_t cut3,Double_t cut4,
1756                                    Double_t cut5,Double_t cut6,
1757                                    Double_t cut7,Double_t cut8,
1758                                    Double_t cut9,Double_t cut10,
1759                                    Double_t cut11,Double_t cut12)
1760 {
1761   // Set the cuts for Ds->KKpi selection
1762   fDsCuts[0] = cut0;
1763   fDsCuts[1] = cut1;
1764   fDsCuts[2] = cut2;
1765   fDsCuts[3] = cut3;
1766   fDsCuts[4] = cut4;
1767   fDsCuts[5] = cut5;
1768   fDsCuts[6] = cut6;
1769   fDsCuts[7] = cut7;
1770   fDsCuts[8] = cut8;
1771   fDsCuts[9] = cut9;
1772   fDsCuts[10] = cut10;
1773   fDsCuts[11] = cut11;
1774   fDsCuts[12] = cut12;
1775
1776   return;
1777 }
1778 //-----------------------------------------------------------------------------
1779 void AliAnalysisVertexingHF::SetDsCuts(const Double_t cuts[13])
1780 {
1781   // Set the cuts for Ds->KKpi selection
1782
1783   for(Int_t i=0; i<13; i++) fDsCuts[i] = cuts[i];
1784
1785   return;
1786 }
1787 //-----------------------------------------------------------------------------
1788 void AliAnalysisVertexingHF::SetLcCuts(Double_t cut0,Double_t cut1,
1789                                    Double_t cut2,Double_t cut3,Double_t cut4,
1790                                    Double_t cut5,Double_t cut6,
1791                                    Double_t cut7,Double_t cut8,
1792                                    Double_t cut9,Double_t cut10,Double_t cut11)
1793 {
1794   // Set the cuts for Lc->pKpi selection
1795   fLcCuts[0] = cut0;
1796   fLcCuts[1] = cut1;
1797   fLcCuts[2] = cut2;
1798   fLcCuts[3] = cut3;
1799   fLcCuts[4] = cut4;
1800   fLcCuts[5] = cut5;
1801   fLcCuts[6] = cut6;
1802   fLcCuts[7] = cut7;
1803   fLcCuts[8] = cut8;
1804   fLcCuts[9] = cut9;
1805   fLcCuts[10] = cut10;
1806   fLcCuts[11] = cut11;
1807
1808   return;
1809 }
1810 //-----------------------------------------------------------------------------
1811 void AliAnalysisVertexingHF::SetLcCuts(const Double_t cuts[12])
1812 {
1813   // Set the cuts for Lc->pKpi selection
1814
1815   for(Int_t i=0; i<12; i++) fLcCuts[i] = cuts[i];
1816
1817   return;
1818 }
1819 //-----------------------------------------------------------------------------
1820 void AliAnalysisVertexingHF::SetD0to4ProngsCuts(Double_t cut0,Double_t cut1,
1821                                    Double_t cut2,Double_t cut3,Double_t cut4,
1822                                    Double_t cut5,Double_t cut6,
1823                                    Double_t cut7,Double_t cut8)
1824 {
1825   // Set the cuts for D0->Kpipipi selection
1826
1827   fD0to4ProngsCuts[0] = cut0;
1828   fD0to4ProngsCuts[1] = cut1;
1829   fD0to4ProngsCuts[2] = cut2;
1830   fD0to4ProngsCuts[3] = cut3;
1831   fD0to4ProngsCuts[4] = cut4;
1832   fD0to4ProngsCuts[5] = cut5;
1833   fD0to4ProngsCuts[6] = cut6;
1834   fD0to4ProngsCuts[7] = cut7;
1835   fD0to4ProngsCuts[8] = cut8;
1836
1837   return;
1838 }
1839 //-----------------------------------------------------------------------------
1840 void AliAnalysisVertexingHF::SetD0to4ProngsCuts(const Double_t cuts[9])
1841 {
1842   // Set the cuts for D0->Kpipipi selection
1843
1844   for(Int_t i=0; i<9; i++) fD0to4ProngsCuts[i] = cuts[i];
1845
1846   return;
1847 }
1848 //-----------------------------------------------------------------------------
1849 Bool_t AliAnalysisVertexingHF::SingleTrkCuts(AliESDtrack *trk,
1850                                              Bool_t &okDisplaced,Bool_t &okSoftPi) const
1851 {
1852   // Check if track passes some kinematical cuts
1853
1854   // this is needed to store the impact parameters
1855   trk->RelateToVertex(fV1,fBzkG,kVeryBig);
1856
1857   UInt_t selectInfo;
1858   //
1859   // Track selection, displaced tracks
1860   selectInfo = 0;
1861   if(fTrackFilter) {
1862     selectInfo = fTrackFilter->IsSelected(trk);
1863   }
1864   if(selectInfo) okDisplaced=kTRUE;
1865   // Track selection, soft pions
1866   selectInfo = 0;
1867   if(fDstar && fTrackFilterSoftPi) {
1868     selectInfo = fTrackFilterSoftPi->IsSelected(trk);
1869   }
1870   if(selectInfo) okSoftPi=kTRUE;
1871
1872   if(okDisplaced || okSoftPi) return kTRUE;
1873
1874   return kFALSE;
1875 }
1876 //-----------------------------------------------------------------------------