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   *
   8  * documentation strictly for non-commercial purposes is hereby granted   *
   9  * without fee, provided that the above copyright notice appears in all   *
  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@pd.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 "AliRDHFCutsD0toKpi.h"
  50 #include "AliAnalysisFilter.h"
  51 #include "AliAnalysisVertexingHF.h"
  52 #include "AliMixedEvent.h"
  53
  54 ClassImp(AliAnalysisVertexingHF)
  55
  56 //----------------------------------------------------------------------------
  57 AliAnalysisVertexingHF::AliAnalysisVertexingHF():
  58 fInputAOD(kFALSE),
  59 fAODMapSize(0),
  60 fAODMap(0),
  61 fBzkG(0.),
  62 fSecVtxWithKF(kFALSE),
  63 fRecoPrimVtxSkippingTrks(kFALSE),
  64 fRmTrksFromPrimVtx(kFALSE),
  65 fV1(0x0),
  66 fD0toKpi(kTRUE),
  67 fJPSItoEle(kTRUE),
  68 f3Prong(kTRUE),
  69 f4Prong(kTRUE),
  70 fDstar(kTRUE),
  71 fLikeSign(kFALSE),
  72 fMixEvent(kFALSE),
  73 fTrackFilter(0x0),
  74 fTrackFilterSoftPi(0x0),
  75 fCutsD0toKpi(0x0),
  76 fFindVertexForDstar(kTRUE)
  77 {
  78   // Default constructor
  79
  80   SetD0toKpiCuts();
  81   SetBtoJPSICuts();
  82   SetDplusCuts();
  83   SetDsCuts();
  84   SetLcCuts();
  85   SetDstarCuts();
  86   SetD0to4ProngsCuts();
  87 }
  88 //--------------------------------------------------------------------------
  89 AliAnalysisVertexingHF::AliAnalysisVertexingHF(const AliAnalysisVertexingHF &source) :
  90 TNamed(source),
  91 fInputAOD(source.fInputAOD),
  92 fAODMapSize(source.fAODMapSize),
  93 fAODMap(source.fAODMap),
  94 fBzkG(source.fBzkG),
  95 fSecVtxWithKF(source.fSecVtxWithKF),
  96 fRecoPrimVtxSkippingTrks(source.fRecoPrimVtxSkippingTrks),
  97 fRmTrksFromPrimVtx(source.fRmTrksFromPrimVtx),
  98 fV1(source.fV1),
  99 fD0toKpi(source.fD0toKpi),
 100 fJPSItoEle(source.fJPSItoEle),
 101 f3Prong(source.f3Prong),
 102 f4Prong(source.f4Prong),
 103 fDstar(source.fDstar),
 104 fLikeSign(source.fLikeSign),
 105 fMixEvent(source.fMixEvent),
 106 fTrackFilter(source.fTrackFilter),
 107 fTrackFilterSoftPi(source.fTrackFilterSoftPi),
 108 fCutsD0toKpi(source.fCutsD0toKpi),
 109 fFindVertexForDstar(source.fFindVertexForDstar)
 110 {
 111   //
 112   // Copy constructor
 113   //
 114   for(Int_t i=0; i<9; i++)  fD0toKpiCuts[i]=source.fD0toKpiCuts[i];
 115   for(Int_t i=0; i<9; i++)  fBtoJPSICuts[i]=source.fBtoJPSICuts[i];
 116   for(Int_t i=0; i<12; i++) fDplusCuts[i]=source.fDplusCuts[i];
 117   for(Int_t i=0; i<14; i++) fDsCuts[i]=source.fDsCuts[i];
 118   for(Int_t i=0; i<12; i++) fLcCuts[i]=source.fLcCuts[i];
 119   for(Int_t i=0; i<5; i++)  fDstarCuts[i]=source.fDstarCuts[i];
 120   for(Int_t i=0; i<9; i++)  fD0to4ProngsCuts[i]=source.fD0to4ProngsCuts[i];
 121 }
 122 //--------------------------------------------------------------------------
 123 AliAnalysisVertexingHF &AliAnalysisVertexingHF::operator=(const AliAnalysisVertexingHF &source)
 124 {
 125   //
 126   // assignment operator
 127   //
 128   if(&source == this) return *this;
 129   fInputAOD = source.fInputAOD;
 130   fAODMapSize = source.fAODMapSize;
 131   fBzkG = source.fBzkG;
 132   fSecVtxWithKF = source.fSecVtxWithKF;
 133   fRecoPrimVtxSkippingTrks = source.fRecoPrimVtxSkippingTrks;
 134   fRmTrksFromPrimVtx = source.fRmTrksFromPrimVtx;
 135   fV1 = source.fV1;
 136   fD0toKpi = source.fD0toKpi;
 137   fJPSItoEle = source.fJPSItoEle;
 138   f3Prong = source.f3Prong;
 139   f4Prong = source.f4Prong;
 140   fDstar = source.fDstar;
 141   fLikeSign = source.fLikeSign;
 142   fMixEvent = source.fMixEvent;
 143   fTrackFilter = source.fTrackFilter;
 144   fTrackFilterSoftPi = source.fTrackFilterSoftPi;
 145   fCutsD0toKpi = source.fCutsD0toKpi;
 146   fFindVertexForDstar = source.fFindVertexForDstar;
 147
 148   for(Int_t i=0; i<9; i++)  fD0toKpiCuts[i]=source.fD0toKpiCuts[i];
 149   for(Int_t i=0; i<9; i++)  fBtoJPSICuts[i]=source.fBtoJPSICuts[i];
 150   for(Int_t i=0; i<12; i++) fDplusCuts[i]=source.fDplusCuts[i];
 151   for(Int_t i=0; i<14; i++) fDsCuts[i]=source.fDsCuts[i];
 152   for(Int_t i=0; i<12; i++) fLcCuts[i]=source.fLcCuts[i];
 153   for(Int_t i=0; i<5; i++)  fDstarCuts[i]=source.fDstarCuts[i];
 154   for(Int_t i=0; i<9; i++)  fD0to4ProngsCuts[i]=source.fD0to4ProngsCuts[i];
 155
 156   return *this;
 157 }
 158 //----------------------------------------------------------------------------
 159 AliAnalysisVertexingHF::~AliAnalysisVertexingHF() {
 160   // Destructor
 161   if(fV1) { delete fV1; fV1=0; }
 162   if(fTrackFilter) { delete fTrackFilter; fTrackFilter=0; }
 163   if(fTrackFilterSoftPi) { delete fTrackFilterSoftPi; fTrackFilterSoftPi=0; }
 164   if(fCutsD0toKpi) { delete fCutsD0toKpi; fCutsD0toKpi=0; }
 165   if(fAODMap) { delete fAODMap; fAODMap=0; }
 166 }
 167 //----------------------------------------------------------------------------
 168 void AliAnalysisVertexingHF::FindCandidates(AliVEvent *event,
 169                                             TClonesArray *aodVerticesHFTClArr,
 170                                             TClonesArray *aodD0toKpiTClArr,
 171                                             TClonesArray *aodJPSItoEleTClArr,
 172                                             TClonesArray *aodCharm3ProngTClArr,
 173                                             TClonesArray *aodCharm4ProngTClArr,
 174                                             TClonesArray *aodDstarTClArr,
 175                                             TClonesArray *aodLikeSign2ProngTClArr,
 176                                             TClonesArray *aodLikeSign3ProngTClArr)
 177 {
 178   // Find heavy-flavour vertex candidates
 179   // Input:  ESD or AOD
 180   // Output: AOD (additional branches added)
 181
 182   if(!fMixEvent){
 183     TString evtype = event->IsA()->GetName();
 184     fInputAOD = ((evtype=="AliAODEvent") ? kTRUE : kFALSE);
 185   } // if we do mixing AliVEvent is a AliMixedEvent
 186
 187   if(fInputAOD) {
 188     AliDebug(2,"Creating HF candidates from AOD");
 189   } else {
 190     AliDebug(2,"Creating HF candidates from ESD");
 191   }
 192
 193   if(!aodVerticesHFTClArr) {
 194     printf("ERROR: no aodVerticesHFTClArr");
 195     return;
 196   }
 197   if((fD0toKpi || fDstar) && !aodD0toKpiTClArr) {
 198     printf("ERROR: no aodD0toKpiTClArr");
 199     return;
 200   }
 201   if(fJPSItoEle && !aodJPSItoEleTClArr) {
 202     printf("ERROR: no aodJPSItoEleTClArr");
 203     return;
 204   }
 205   if(f3Prong && !aodCharm3ProngTClArr) {
 206     printf("ERROR: no aodCharm3ProngTClArr");
 207     return;
 208   }
 209   if(f4Prong && !aodCharm4ProngTClArr) {
 210     printf("ERROR: no aodCharm4ProngTClArr");
 211     return;
 212   }
 213   if(fDstar && !aodDstarTClArr) {
 214     printf("ERROR: no aodDstarTClArr");
 215     return;
 216   }
 217   if(fLikeSign && !aodLikeSign2ProngTClArr) {
 218     printf("ERROR: no aodLikeSign2ProngTClArr");
 219     return;
 220   }
 221   if(fLikeSign && f3Prong && !aodLikeSign3ProngTClArr) {
 222     printf("ERROR: no aodLikeSign2ProngTClArr");
 223     return;
 224   }
 225
 226   // delete candidates from previous event and create references
 227   Int_t iVerticesHF=0,iD0toKpi=0,iJPSItoEle=0,i3Prong=0,i4Prong=0,iDstar=0,iLikeSign2Prong=0,iLikeSign3Prong=0;
 228   aodVerticesHFTClArr->Delete();
 229   iVerticesHF = aodVerticesHFTClArr->GetEntriesFast();
 230   TClonesArray &verticesHFRef = *aodVerticesHFTClArr;
 231   if(fD0toKpi || fDstar)   {
 232     aodD0toKpiTClArr->Delete();
 233     iD0toKpi = aodD0toKpiTClArr->GetEntriesFast();
 234   }
 235   if(fJPSItoEle) {
 236     aodJPSItoEleTClArr->Delete();
 237     iJPSItoEle = aodJPSItoEleTClArr->GetEntriesFast();
 238   }
 239   if(f3Prong) {
 240     aodCharm3ProngTClArr->Delete();
 241     i3Prong = aodCharm3ProngTClArr->GetEntriesFast();
 242   }
 243   if(f4Prong) {
 244     aodCharm4ProngTClArr->Delete();
 245     i4Prong = aodCharm4ProngTClArr->GetEntriesFast();
 246   }
 247   if(fDstar) {
 248     aodDstarTClArr->Delete();
 249     iDstar = aodDstarTClArr->GetEntriesFast();
 250   }
 251   if(fLikeSign) {
 252     aodLikeSign2ProngTClArr->Delete();
 253     iLikeSign2Prong = aodLikeSign2ProngTClArr->GetEntriesFast();
 254   }
 255   if(fLikeSign && f3Prong) {
 256     aodLikeSign3ProngTClArr->Delete();
 257     iLikeSign3Prong = aodLikeSign3ProngTClArr->GetEntriesFast();
 258   }
 259
 260   TClonesArray &aodD0toKpiRef        = *aodD0toKpiTClArr;
 261   TClonesArray &aodJPSItoEleRef      = *aodJPSItoEleTClArr;
 262   TClonesArray &aodCharm3ProngRef    = *aodCharm3ProngTClArr;
 263   TClonesArray &aodCharm4ProngRef    = *aodCharm4ProngTClArr;
 264   TClonesArray &aodDstarRef          = *aodDstarTClArr;
 265   TClonesArray &aodLikeSign2ProngRef = *aodLikeSign2ProngTClArr;
 266   TClonesArray &aodLikeSign3ProngRef = *aodLikeSign3ProngTClArr;
 267
 268
 269   AliAODRecoDecayHF2Prong *io2Prong  = 0;
 270   AliAODRecoDecayHF3Prong *io3Prong  = 0;
 271   AliAODRecoDecayHF4Prong *io4Prong  = 0;
 272   AliAODRecoCascadeHF     *ioCascade = 0;
 273
 274   Int_t    iTrkP1,iTrkP2,iTrkN1,iTrkN2,iTrkSoftPi,trkEntries;
 275   Double_t xdummy,ydummy,dcap1n1,dcap1n2,dcap2n1,dcap1p2,dcan1n2,dcap2n2,dcaCasc;
 276   Bool_t   okD0=kFALSE,okJPSI=kFALSE,ok3Prong=kFALSE,ok4Prong=kFALSE;
 277   Bool_t   okDstar=kFALSE,okD0fromDstar=kFALSE;
 278   AliESDtrack *postrack1 = 0;
 279   AliESDtrack *postrack2 = 0;
 280   AliESDtrack *negtrack1 = 0;
 281   AliESDtrack *negtrack2 = 0;
 282   AliESDtrack *trackPi   = 0;
 283   Double_t dcaMax = fD0toKpiCuts[1];
 284   if(dcaMax < fBtoJPSICuts[1]) dcaMax=fBtoJPSICuts[1];
 285   if(dcaMax < fDplusCuts[11])  dcaMax=fDplusCuts[11];
 286   if(dcaMax < fD0to4ProngsCuts[1])  dcaMax=fD0to4ProngsCuts[1];
 287   AliDebug(2,Form(" dca cut set to %f cm",dcaMax));
 288
 289
 290   // get Bz
 291   fBzkG = (Double_t)event->GetMagneticField();
 292
 293   trkEntries = (Int_t)event->GetNumberOfTracks();
 294   AliDebug(1,Form(" Number of tracks: %d",trkEntries));
 295
 296   if(trkEntries<2) {
 297     AliDebug(1,Form(" Not enough tracks: %d",trkEntries));
 298     return;
 299   }
 300
 301   const AliVVertex *primary = event->GetPrimaryVertex();
 302   if(!primary) {
 303     AliDebug(1," No primary vertex from tracks");
 304     return;
 305   }
 306
 307   TString primTitle=primary->GetTitle();
 308   if(!primTitle.Contains("VertexerTracks") ||
 309      primary->GetNContributors()<=0) {
 310     AliDebug(1," No primary vertex from tracks");
 311     return;
 312   }
 313
 314
 315   // call function that applies sigle-track selection,
 316   // for displaced tracks and soft pions (both charges) for D*,
 317   // and retrieves primary vertex
 318   TObjArray seleTrksArray(trkEntries);
 319   UChar_t  *seleFlags = new UChar_t[trkEntries]; // bit 0: displaced, bit 1: softpi
 320   Int_t     nSeleTrks=0;
 321   Int_t *evtNumber    = new Int_t[trkEntries];
 322   SelectTracksAndCopyVertex(event,seleTrksArray,nSeleTrks,seleFlags,evtNumber);
 323
 324   AliDebug(1,Form(" Selected tracks: %d",nSeleTrks));
 325
 326   TObjArray *twoTrackArray1    = new TObjArray(2);
 327   TObjArray *twoTrackArray2    = new TObjArray(2);
 328   TObjArray *twoTrackArrayCasc = new TObjArray(2);
 329   TObjArray *threeTrackArray   = new TObjArray(3);
 330   TObjArray *fourTrackArray    = new TObjArray(4);
 331
 332   Double_t dispersion;
 333   Bool_t isLikeSign2Prong=kFALSE,isLikeSign3Prong=kFALSE;
 334
 335   AliAODRecoDecayHF   *rd = 0;
 336   AliAODRecoCascadeHF *rc = 0;
 337
 338   // LOOP ON  POSITIVE  TRACKS
 339   for(iTrkP1=0; iTrkP1<nSeleTrks; iTrkP1++) {
 340
 341     if(iTrkP1%1==0) AliDebug(1,Form("  1st loop on pos: track number %d of %d",iTrkP1,nSeleTrks));
 342
 343     // get track from tracks array
 344     postrack1 = (AliESDtrack*)seleTrksArray.UncheckedAt(iTrkP1);
 345
 346     if(!TESTBIT(seleFlags[iTrkP1],kBitDispl)) continue;
 347
 348     if(postrack1->Charge()<0 && !fLikeSign) continue;
 349
 350     // LOOP ON  NEGATIVE  TRACKS
 351     for(iTrkN1=0; iTrkN1<nSeleTrks; iTrkN1++) {
 352
 353       if(iTrkN1%1==0) AliDebug(1,Form("    1st loop on neg: track number %d of %d",iTrkN1,nSeleTrks));
 354
 355       if(iTrkN1==iTrkP1) continue;
 356
 357       // get track from tracks array
 358       negtrack1 = (AliESDtrack*)seleTrksArray.UncheckedAt(iTrkN1);
 359
 360       if(negtrack1->Charge()>0 && !fLikeSign) continue;
 361
 362       if(!TESTBIT(seleFlags[iTrkN1],kBitDispl)) continue;
 363
 364       if(fMixEvent) {
 365         if(evtNumber[iTrkP1]==evtNumber[iTrkN1]) continue;
 366       }
 367
 368       if(postrack1->Charge()==negtrack1->Charge()) { // like-sign
 369         isLikeSign2Prong=kTRUE;
 370         if(!fLikeSign)    continue;
 371         if(iTrkN1<iTrkP1) continue; // this is needed to avoid double-counting of like-sign
 372       } else { // unlike-sign
 373         isLikeSign2Prong=kFALSE;
 374         if(postrack1->Charge()<0 || negtrack1->Charge()>0) continue;  // this is needed to avoid double-counting of unlike-sign
 375         if(fMixEvent) {
 376           if(evtNumber[iTrkP1]==evtNumber[iTrkN1]) continue;
 377         }
 378
 379       }
 380
 381       // back to primary vertex
 382       postrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 383       negtrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 384
 385       // DCA between the two tracks
 386       dcap1n1 = postrack1->GetDCA(negtrack1,fBzkG,xdummy,ydummy);
 387       if(dcap1n1>dcaMax) { negtrack1=0; continue; }
 388
 389       // Vertexing
 390       twoTrackArray1->AddAt(postrack1,0);
 391       twoTrackArray1->AddAt(negtrack1,1);
 392       AliAODVertex *vertexp1n1 = ReconstructSecondaryVertex(twoTrackArray1,dispersion);
 393       if(!vertexp1n1) {
 394         twoTrackArray1->Clear();
 395         negtrack1=0;
 396         continue;
 397       }
 398
 399       // 2 prong candidate
 400       if(fD0toKpi || fJPSItoEle || fDstar || fLikeSign) {
 401
 402         io2Prong = Make2Prong(twoTrackArray1,event,vertexp1n1,dcap1n1,okD0,okJPSI,okD0fromDstar);
 403
 404         if((fD0toKpi && okD0) || (fJPSItoEle && okJPSI) || (isLikeSign2Prong && (okD0 || okJPSI))) {
 405           // add the vertex and the decay to the AOD
 406           AliAODVertex *v2Prong = new(verticesHFRef[iVerticesHF++])AliAODVertex(*vertexp1n1);
 407           if(fInputAOD) AddDaughterRefs(v2Prong,event,twoTrackArray1);
 408           if(!isLikeSign2Prong) {
 409             if(okD0) {
 410               rd = new(aodD0toKpiRef[iD0toKpi++])AliAODRecoDecayHF2Prong(*io2Prong);
 411               rd->SetSecondaryVtx(v2Prong);
 412               v2Prong->SetParent(rd);
 413               if(fInputAOD) rd->SetPrimaryVtxRef((AliAODVertex*)event->GetPrimaryVertex());
 414             }
 415             if(okJPSI) {
 416               rd = new(aodJPSItoEleRef[iJPSItoEle++])AliAODRecoDecayHF2Prong(*io2Prong);
 417               rd->SetSecondaryVtx(v2Prong);
 418               if(!okD0) v2Prong->SetParent(rd); // it cannot have two mothers ...
 419               if(fInputAOD) rd->SetPrimaryVtxRef((AliAODVertex*)event->GetPrimaryVertex());
 420             }
 421           } else { // isLikeSign2Prong
 422             rd = new(aodLikeSign2ProngRef[iLikeSign2Prong++])AliAODRecoDecayHF2Prong(*io2Prong);
 423             rd->SetSecondaryVtx(v2Prong);
 424             v2Prong->SetParent(rd);
 425             if(fInputAOD) rd->SetPrimaryVtxRef((AliAODVertex*)event->GetPrimaryVertex());
 426           }
 427         }
 428         // D* candidates
 429         if(fDstar && okD0fromDstar && !isLikeSign2Prong) {
 430           // write references in io2Prong
 431           if(fInputAOD) {
 432             AddDaughterRefs(vertexp1n1,event,twoTrackArray1);
 433           } else {
 434             vertexp1n1->AddDaughter(postrack1);
 435             vertexp1n1->AddDaughter(negtrack1);
 436           }
 437           io2Prong->SetSecondaryVtx(vertexp1n1);
 438           //printf("--->  %d %d %d %d %d\n",vertexp1n1->GetNDaughters(),iTrkP1,iTrkN1,postrack1->Charge(),negtrack1->Charge());
 439           // create a track from the D0
 440           AliNeutralTrackParam *trackD0 = new AliNeutralTrackParam(io2Prong);
 441
 442           // LOOP ON TRACKS THAT PASSED THE SOFT PION CUTS
 443           for(iTrkSoftPi=0; iTrkSoftPi<nSeleTrks; iTrkSoftPi++) {
 444
 445             if(iTrkSoftPi==iTrkP1 || iTrkSoftPi==iTrkN1) continue;
 446
 447             if(!TESTBIT(seleFlags[iTrkSoftPi],kBitSoftPi)) continue;
 448
 449             if(fMixEvent) {
 450               if(evtNumber[iTrkP1]==evtNumber[iTrkSoftPi] ||
 451                  evtNumber[iTrkN1]==evtNumber[iTrkSoftPi] ||
 452                  evtNumber[iTrkP1]==evtNumber[iTrkN1]) continue;
 453             }
 454
 455             if(iTrkSoftPi%1==0) AliDebug(1,Form("    1st loop on pi_s: track number %d of %d",iTrkSoftPi,nSeleTrks));
 456
 457             trackD0->PropagateToDCA(fV1,fBzkG,kVeryBig);
 458             if(trackD0->GetSigmaY2()<0. || trackD0->GetSigmaZ2()<0.) continue; // this is insipired by the AliITStrackV2::Invariant() checks
 459
 460             // get track from tracks array
 461             trackPi = (AliESDtrack*)seleTrksArray.UncheckedAt(iTrkSoftPi);
 462             trackPi->PropagateToDCA(fV1,fBzkG,kVeryBig);
 463
 464             twoTrackArrayCasc->AddAt(trackPi,0);
 465             twoTrackArrayCasc->AddAt(trackD0,1);
 466
 467             AliAODVertex *vertexCasc = 0;
 468
 469             if(fFindVertexForDstar) {
 470               // DCA between the two tracks
 471               dcaCasc = trackPi->GetDCA(trackD0,fBzkG,xdummy,ydummy);
 472               // Vertexing
 473               vertexCasc = ReconstructSecondaryVertex(twoTrackArrayCasc,dispersion,kFALSE);
 474             } else {
 475               // assume Dstar decays at the primary vertex
 476               Double_t pos[3],cov[6],chi2perNDF;
 477               fV1->GetXYZ(pos);
 478               fV1->GetCovMatrix(cov);
 479               chi2perNDF = fV1->GetChi2toNDF();
 480               vertexCasc = new AliAODVertex(pos,cov,chi2perNDF,0x0,-1,AliAODVertex::kUndef,2);
 481               dcaCasc = 0.;
 482             }
 483             if(!vertexCasc) {
 484               twoTrackArrayCasc->Clear();
 485               trackPi=0;
 486               continue;
 487             }
 488
 489             ioCascade = MakeCascade(twoTrackArrayCasc,event,vertexCasc,io2Prong,dcaCasc,okDstar);
 490             if(okDstar) {
 491               // add the D0 to the AOD (if not already done)
 492               if(!okD0) {
 493                 AliAODVertex *v2Prong = new(verticesHFRef[iVerticesHF++])AliAODVertex(*vertexp1n1);
 494                 if(fInputAOD) AddDaughterRefs(v2Prong,event,twoTrackArray1);
 495                 rd = new(aodD0toKpiRef[iD0toKpi++])AliAODRecoDecayHF2Prong(*io2Prong);
 496                 rd->SetSecondaryVtx(v2Prong);
 497                 v2Prong->SetParent(rd);
 498                 if(fInputAOD) rd->SetPrimaryVtxRef((AliAODVertex*)event->GetPrimaryVertex());
 499                 okD0=kTRUE; // this is done to add it only once
 500               }
 501               // add the vertex and the cascade to the AOD
 502               AliAODVertex *vCasc = new(verticesHFRef[iVerticesHF++])AliAODVertex(*vertexCasc);
 503               if(fInputAOD) {
 504                 AddDaughterRefs(vCasc,event,twoTrackArrayCasc); // add the pion
 505               } else {
 506                 vCasc->AddDaughter(rd); // just to fill ref #0
 507               }
 508               vCasc->AddDaughter(rd); // add the D0 (in ref #1)
 509               rc = new(aodDstarRef[iDstar++])AliAODRecoCascadeHF(*ioCascade);
 510               rc->SetSecondaryVtx(vCasc);
 511               vCasc->SetParent(rc);
 512               if(fInputAOD) rc->SetPrimaryVtxRef((AliAODVertex*)event->GetPrimaryVertex());
 513             }
 514             twoTrackArrayCasc->Clear();
 515             trackPi=0;
 516             if(ioCascade) {delete ioCascade; ioCascade=NULL;}
 517             delete vertexCasc; vertexCasc=NULL;
 518           } // end loop on soft pi tracks
 519
 520           if(trackD0) {delete trackD0; trackD0=NULL;}
 521
 522         }
 523         if(io2Prong) {delete io2Prong; io2Prong=NULL;}
 524       }
 525
 526       twoTrackArray1->Clear();
 527       if( (!f3Prong && !f4Prong) ||
 528           (isLikeSign2Prong && !f3Prong) ) {
 529         negtrack1=0;
 530         delete vertexp1n1;
 531         continue;
 532       }
 533
 534
 535       // 2nd LOOP  ON  POSITIVE  TRACKS
 536       for(iTrkP2=iTrkP1+1; iTrkP2<nSeleTrks; iTrkP2++) {
 537
 538         if(iTrkP2==iTrkP1 || iTrkP2==iTrkN1) continue;
 539
 540         if(iTrkP2%1==0) AliDebug(1,Form("    2nd loop on pos: track number %d of %d",iTrkP2,nSeleTrks));
 541
 542         // get track from tracks array
 543         postrack2 = (AliESDtrack*)seleTrksArray.UncheckedAt(iTrkP2);
 544
 545         if(postrack2->Charge()<0) continue;
 546
 547         if(!TESTBIT(seleFlags[iTrkP2],kBitDispl)) continue;
 548
 549         if(fMixEvent) {
 550           if(evtNumber[iTrkP1]==evtNumber[iTrkP2] ||
 551              evtNumber[iTrkN1]==evtNumber[iTrkP2] ||
 552              evtNumber[iTrkP1]==evtNumber[iTrkN1]) continue;
 553         }
 554
 555         if(isLikeSign2Prong) { // like-sign pair -> have to build only like-sign triplet
 556           if(postrack1->Charge()>0) { // ok: like-sign triplet (+++)
 557             isLikeSign3Prong=kTRUE;
 558           } else { // not ok
 559             continue;
 560           }
 561         } else { // normal triplet (+-+)
 562           isLikeSign3Prong=kFALSE;
 563           if(fMixEvent) {
 564             if(evtNumber[iTrkP1]==evtNumber[iTrkP2] ||
 565                evtNumber[iTrkN1]==evtNumber[iTrkP2] ||
 566                evtNumber[iTrkP1]==evtNumber[iTrkN1]) continue;
 567           }
 568         }
 569
 570         // back to primary vertex
 571         postrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 572         postrack2->PropagateToDCA(fV1,fBzkG,kVeryBig);
 573         negtrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 574         //printf("********** %d %d %d\n",postrack1->GetID(),postrack2->GetID(),negtrack1->GetID());
 575
 576         dcap2n1 = postrack2->GetDCA(negtrack1,fBzkG,xdummy,ydummy);
 577         if(dcap2n1>dcaMax) { postrack2=0; continue; }
 578         dcap1p2 = postrack2->GetDCA(postrack1,fBzkG,xdummy,ydummy);
 579         if(dcap1p2>dcaMax) { postrack2=0; continue; }
 580
 581         // Vertexing
 582         twoTrackArray2->AddAt(postrack2,0);
 583         twoTrackArray2->AddAt(negtrack1,1);
 584         AliAODVertex *vertexp2n1 = ReconstructSecondaryVertex(twoTrackArray2,dispersion);
 585         if(!vertexp2n1) {
 586           twoTrackArray2->Clear();
 587           postrack2=0;
 588           continue;
 589         }
 590
 591         // 3 prong candidates
 592         if(f3Prong) {
 593           if(postrack2->Charge()>0) {
 594             threeTrackArray->AddAt(postrack1,0);
 595             threeTrackArray->AddAt(negtrack1,1);
 596             threeTrackArray->AddAt(postrack2,2);
 597           } else {
 598             threeTrackArray->AddAt(negtrack1,0);
 599             threeTrackArray->AddAt(postrack1,1);
 600             threeTrackArray->AddAt(postrack2,2);
 601           }
 602
 603           AliAODVertex* secVert3PrAOD = ReconstructSecondaryVertex(threeTrackArray,dispersion);
 604           io3Prong = Make3Prong(threeTrackArray,event,secVert3PrAOD,dispersion,vertexp1n1,vertexp2n1,dcap1n1,dcap2n1,dcap1p2,ok3Prong);
 605           if(ok3Prong) {
 606             AliAODVertex *v3Prong = new(verticesHFRef[iVerticesHF++])AliAODVertex(*secVert3PrAOD);
 607             if(fInputAOD) AddDaughterRefs(v3Prong,event,threeTrackArray);
 608             if(!isLikeSign3Prong) {
 609               rd = new(aodCharm3ProngRef[i3Prong++])AliAODRecoDecayHF3Prong(*io3Prong);
 610               rd->SetSecondaryVtx(v3Prong);
 611               v3Prong->SetParent(rd);
 612             } else { // isLikeSign3Prong
 613               rd = new(aodLikeSign3ProngRef[iLikeSign3Prong++])AliAODRecoDecayHF3Prong(*io3Prong);
 614               rd->SetSecondaryVtx(v3Prong);
 615               v3Prong->SetParent(rd);
 616               if(fInputAOD) rd->SetPrimaryVtxRef((AliAODVertex*)event->GetPrimaryVertex());
 617             }
 618           }
 619           if(io3Prong) {delete io3Prong; io3Prong=NULL;}
 620           if(secVert3PrAOD) {delete secVert3PrAOD; secVert3PrAOD=NULL;}
 621         }
 622
 623         // 4 prong candidates
 624         if(f4Prong
 625            // don't make 4 prong with like-sign pairs and triplets
 626            && !isLikeSign2Prong && !isLikeSign3Prong
 627            // track-to-track dca cuts already now
 628            && dcap1n1 < fD0to4ProngsCuts[1]
 629            && dcap2n1 < fD0to4ProngsCuts[1]) {
 630
 631           // back to primary vertex
 632           postrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 633           postrack2->PropagateToDCA(fV1,fBzkG,kVeryBig);
 634           negtrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 635           // Vertexing for these 3 (can be taken from above?)
 636           threeTrackArray->AddAt(postrack1,0);
 637           threeTrackArray->AddAt(negtrack1,1);
 638           threeTrackArray->AddAt(postrack2,2);
 639           AliAODVertex* vertexp1n1p2 = ReconstructSecondaryVertex(threeTrackArray,dispersion);
 640
 641           // 3rd LOOP  ON  NEGATIVE  TRACKS (for 4 prong)
 642           for(iTrkN2=iTrkN1+1; iTrkN2<nSeleTrks; iTrkN2++) {
 643
 644             if(iTrkN2==iTrkP1 || iTrkN2==iTrkP2 || iTrkN2==iTrkN1) continue;
 645
 646             if(iTrkN2%1==0) AliDebug(1,Form("    3rd loop on neg: track number %d of %d",iTrkN2,nSeleTrks));
 647
 648             // get track from tracks array
 649             negtrack2 = (AliESDtrack*)seleTrksArray.UncheckedAt(iTrkN2);
 650
 651             if(negtrack2->Charge()>0) continue;
 652
 653             if(!TESTBIT(seleFlags[iTrkN2],kBitDispl)) continue;
 654             if(fMixEvent){
 655               if(evtNumber[iTrkP1]==evtNumber[iTrkN2] ||
 656                  evtNumber[iTrkN1]==evtNumber[iTrkN2] ||
 657                  evtNumber[iTrkP2]==evtNumber[iTrkN2] ||
 658                  evtNumber[iTrkP1]==evtNumber[iTrkN1] ||
 659                  evtNumber[iTrkP1]==evtNumber[iTrkP2] ||
 660                  evtNumber[iTrkN1]==evtNumber[iTrkP2]) continue;
 661             }
 662
 663             // back to primary vertex
 664             postrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 665             postrack2->PropagateToDCA(fV1,fBzkG,kVeryBig);
 666             negtrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 667             negtrack2->PropagateToDCA(fV1,fBzkG,kVeryBig);
 668             dcap1n2 = postrack1->GetDCA(negtrack2,fBzkG,xdummy,ydummy);
 669             if(dcap1n2 > fD0to4ProngsCuts[1]) { negtrack2=0; continue; }
 670             dcap2n2 = postrack2->GetDCA(negtrack2,fBzkG,xdummy,ydummy);
 671             if(dcap2n2 > fD0to4ProngsCuts[1]) { negtrack2=0; continue; }
 672
 673             // Vertexing
 674             fourTrackArray->AddAt(postrack1,0);
 675             fourTrackArray->AddAt(negtrack1,1);
 676             fourTrackArray->AddAt(postrack2,2);
 677             fourTrackArray->AddAt(negtrack2,3);
 678
 679             AliAODVertex* secVert4PrAOD = ReconstructSecondaryVertex(fourTrackArray,dispersion);
 680             io4Prong = Make4Prong(fourTrackArray,event,secVert4PrAOD,vertexp1n1,vertexp1n1p2,dcap1n1,dcap1n2,dcap2n1,dcap2n2,ok4Prong);
 681             if(ok4Prong) {
 682               AliAODVertex *v4Prong = new(verticesHFRef[iVerticesHF++])AliAODVertex(*secVert4PrAOD);
 683               if(fInputAOD) AddDaughterRefs(v4Prong,event,fourTrackArray);
 684               rd = new(aodCharm4ProngRef[i4Prong++])AliAODRecoDecayHF4Prong(*io4Prong);
 685               rd->SetSecondaryVtx(v4Prong);
 686               v4Prong->SetParent(rd);
 687               if(fInputAOD) rd->SetPrimaryVtxRef((AliAODVertex*)event->GetPrimaryVertex());
 688             }
 689
 690             if(io4Prong) {delete io4Prong; io4Prong=NULL;}
 691             if(secVert4PrAOD) {delete secVert4PrAOD; secVert4PrAOD=NULL;}
 692             fourTrackArray->Clear();
 693             negtrack2 = 0;
 694
 695           } // end loop on negative tracks
 696
 697           threeTrackArray->Clear();
 698           delete vertexp1n1p2;
 699
 700         }
 701
 702         postrack2 = 0;
 703         delete vertexp2n1;
 704
 705       } // end 2nd loop on positive tracks
 706
 707       twoTrackArray2->Clear();
 708
 709       // 2nd LOOP  ON  NEGATIVE  TRACKS (for 3 prong -+-)
 710       for(iTrkN2=iTrkN1+1; iTrkN2<nSeleTrks; iTrkN2++) {
 711
 712         if(iTrkN2==iTrkP1 || iTrkN2==iTrkP2 || iTrkN2==iTrkN1) continue;
 713
 714         if(iTrkN2%1==0) AliDebug(1,Form("    2nd loop on neg: track number %d of %d",iTrkN2,nSeleTrks));
 715
 716         // get track from tracks array
 717         negtrack2 = (AliESDtrack*)seleTrksArray.UncheckedAt(iTrkN2);
 718
 719         if(negtrack2->Charge()>0) continue;
 720
 721         if(!TESTBIT(seleFlags[iTrkN2],kBitDispl)) continue;
 722
 723         if(fMixEvent) {
 724           if(evtNumber[iTrkP1]==evtNumber[iTrkN2] ||
 725              evtNumber[iTrkN1]==evtNumber[iTrkN2] ||
 726              evtNumber[iTrkP1]==evtNumber[iTrkN1]) continue;
 727         }
 728
 729         if(isLikeSign2Prong) { // like-sign pair -> have to build only like-sign triplet
 730           if(postrack1->Charge()<0) { // ok: like-sign triplet (---)
 731             isLikeSign3Prong=kTRUE;
 732           } else { // not ok
 733             continue;
 734           }
 735         } else { // normal triplet (-+-)
 736           isLikeSign3Prong=kFALSE;
 737         }
 738
 739         // back to primary vertex
 740         postrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 741         negtrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 742         negtrack2->PropagateToDCA(fV1,fBzkG,kVeryBig);
 743         //printf("********** %d %d %d\n",postrack1->GetID(),negtrack1->GetID(),negtrack2->GetID());
 744
 745         dcap1n2 = postrack1->GetDCA(negtrack2,fBzkG,xdummy,ydummy);
 746         if(dcap1n2>dcaMax) { negtrack2=0; continue; }
 747         dcan1n2 = negtrack1->GetDCA(negtrack2,fBzkG,xdummy,ydummy);
 748         if(dcan1n2>dcaMax) { negtrack2=0; continue; }
 749
 750         // Vertexing
 751         twoTrackArray2->AddAt(postrack1,0);
 752         twoTrackArray2->AddAt(negtrack2,1);
 753
 754         AliAODVertex *vertexp1n2 = ReconstructSecondaryVertex(twoTrackArray2,dispersion);
 755         if(!vertexp1n2) {
 756           twoTrackArray2->Clear();
 757           negtrack2=0;
 758           continue;
 759         }
 760
 761         if(f3Prong) {
 762           threeTrackArray->AddAt(negtrack1,0);
 763           threeTrackArray->AddAt(postrack1,1);
 764           threeTrackArray->AddAt(negtrack2,2);
 765           AliAODVertex* secVert3PrAOD = ReconstructSecondaryVertex(threeTrackArray,dispersion);
 766           io3Prong = Make3Prong(threeTrackArray,event,secVert3PrAOD,dispersion,vertexp1n1,vertexp1n2,dcap1n1,dcap1n2,dcan1n2,ok3Prong);
 767           if(ok3Prong) {
 768             AliAODVertex *v3Prong = new(verticesHFRef[iVerticesHF++])AliAODVertex(*secVert3PrAOD);
 769             if(fInputAOD) AddDaughterRefs(v3Prong,event,threeTrackArray);
 770             if(!isLikeSign3Prong) {
 771               rd = new(aodCharm3ProngRef[i3Prong++])AliAODRecoDecayHF3Prong(*io3Prong);
 772               rd->SetSecondaryVtx(v3Prong);
 773               v3Prong->SetParent(rd);
 774             } else { // isLikeSign3Prong
 775               rd = new(aodLikeSign3ProngRef[iLikeSign3Prong++])AliAODRecoDecayHF3Prong(*io3Prong);
 776               rd->SetSecondaryVtx(v3Prong);
 777               v3Prong->SetParent(rd);
 778               if(fInputAOD) rd->SetPrimaryVtxRef((AliAODVertex*)event->GetPrimaryVertex());
 779             }
 780           }
 781           if(io3Prong) {delete io3Prong; io3Prong=NULL;}
 782           if(secVert3PrAOD) {delete secVert3PrAOD; secVert3PrAOD=NULL;}
 783         }
 784
 785         negtrack2 = 0;
 786         delete vertexp1n2;
 787
 788       } // end 2nd loop on negative tracks
 789
 790       twoTrackArray2->Clear();
 791
 792       negtrack1 = 0;
 793       delete vertexp1n1;
 794     } // end 1st loop on negative tracks
 795
 796     postrack1 = 0;
 797   }  // end 1st loop on positive tracks
 798
 799
 800   AliDebug(1,Form(" Total HF vertices in event = %d;",
 801                   (Int_t)aodVerticesHFTClArr->GetEntriesFast()));
 802   if(fD0toKpi) {
 803     AliDebug(1,Form(" D0->Kpi in event = %d;",
 804                     (Int_t)aodD0toKpiTClArr->GetEntriesFast()));
 805   }
 806   if(fJPSItoEle) {
 807     AliDebug(1,Form(" JPSI->ee in event = %d;",
 808                     (Int_t)aodJPSItoEleTClArr->GetEntriesFast()));
 809   }
 810   if(f3Prong) {
 811     AliDebug(1,Form(" Charm->3Prong in event = %d;",
 812                     (Int_t)aodCharm3ProngTClArr->GetEntriesFast()));
 813   }
 814   if(f4Prong) {
 815     AliDebug(1,Form(" Charm->4Prong in event = %d;\n",
 816                     (Int_t)aodCharm4ProngTClArr->GetEntriesFast()));
 817   }
 818   if(fDstar) {
 819     AliDebug(1,Form(" D*->D0pi in event = %d;\n",
 820                     (Int_t)aodDstarTClArr->GetEntriesFast()));
 821   }
 822   if(fLikeSign) {
 823     AliDebug(1,Form(" Like-sign 2Prong in event = %d;\n",
 824                     (Int_t)aodLikeSign2ProngTClArr->GetEntriesFast()));
 825   }
 826   if(fLikeSign && f3Prong) {
 827     AliDebug(1,Form(" Like-sign 3Prong in event = %d;\n",
 828                     (Int_t)aodLikeSign3ProngTClArr->GetEntriesFast()));
 829   }
 830
 831
 832   twoTrackArray1->Delete();  delete twoTrackArray1;
 833   twoTrackArray2->Delete();  delete twoTrackArray2;
 834   twoTrackArrayCasc->Delete();  delete twoTrackArrayCasc;
 835   threeTrackArray->Clear();
 836   threeTrackArray->Delete(); delete threeTrackArray;
 837   fourTrackArray->Delete();  delete fourTrackArray;
 838   delete [] seleFlags; seleFlags=NULL;
 839   if(evtNumber) {delete [] evtNumber; evtNumber=NULL;}
 840
 841   if(fInputAOD) {
 842     seleTrksArray.Delete();
 843     if(fAODMap) { delete fAODMap; fAODMap=NULL; }
 844   }
 845
 846   return;
 847 }
 848 //----------------------------------------------------------------------------
 849 void AliAnalysisVertexingHF::AddDaughterRefs(AliAODVertex *v,
 850                                              const AliVEvent *event,
 851                                              const TObjArray *trkArray) const
 852 {
 853   // Add the AOD tracks as daughters of the vertex (TRef)
 854
 855   Int_t nTrks = trkArray->GetEntriesFast();
 856
 857   AliExternalTrackParam *track = 0;
 858   AliAODTrack *aodTrack = 0;
 859   Int_t id;
 860
 861   for(Int_t i=0; i<nTrks; i++) {
 862     track = (AliExternalTrackParam*)trkArray->UncheckedAt(i);
 863     id = (Int_t)track->GetID();
 864     //printf("---> %d\n",id);
 865     if(id<0) continue; // this track is a AliAODRecoDecay
 866     aodTrack = (AliAODTrack*)event->GetTrack(fAODMap[id]);
 867     v->AddDaughter(aodTrack);
 868   }
 869
 870   return;
 871 }
 872 //----------------------------------------------------------------------------
 873 AliAODRecoCascadeHF* AliAnalysisVertexingHF::MakeCascade(
 874                                    TObjArray *twoTrackArray,AliVEvent *event,
 875                                    AliAODVertex *secVert,
 876                                    AliAODRecoDecayHF2Prong *rd2Prong,
 877                                    Double_t dca,
 878                                    Bool_t &okDstar) const
 879 {
 880   // Make the cascade as a 2Prong decay and check if it passes Dstar
 881   // reconstruction cuts
 882
 883   okDstar = kFALSE;
 884
 885   Bool_t dummy1,dummy2,dummy3;
 886
 887   // We use Make2Prong to construct the AliAODRecoCascadeHF
 888   // (which inherits from AliAODRecoDecayHF2Prong)
 889   AliAODRecoCascadeHF *theCascade =
 890     (AliAODRecoCascadeHF*)Make2Prong(twoTrackArray,event,secVert,dca,
 891                                      dummy1,dummy2,dummy3);
 892   if(!theCascade) return 0x0;
 893
 894   // charge
 895   AliESDtrack *trackPi = (AliESDtrack*)twoTrackArray->UncheckedAt(0);
 896   theCascade->SetCharge(trackPi->Charge());
 897
 898   //--- selection cuts
 899   //
 900   AliAODRecoCascadeHF *tmpCascade = new AliAODRecoCascadeHF(*theCascade);
 901   tmpCascade->GetSecondaryVtx()->AddDaughter(trackPi);
 902   tmpCascade->GetSecondaryVtx()->AddDaughter(rd2Prong);
 903   AliAODVertex *primVertexAOD=0;
 904   if(!fRecoPrimVtxSkippingTrks && !fRmTrksFromPrimVtx) {
 905     // take event primary vertex
 906     primVertexAOD = PrimaryVertex();
 907     tmpCascade->SetOwnPrimaryVtx(primVertexAOD);
 908     rd2Prong->SetOwnPrimaryVtx(primVertexAOD);
 909   }
 910   // select D*->D0pi
 911   if(fDstar) {
 912     Bool_t testD0=kTRUE;
 913     okDstar = tmpCascade->SelectDstar(fDstarCuts,fD0fromDstarCuts,testD0);
 914   }
 915   tmpCascade->GetSecondaryVtx()->RemoveDaughters();
 916   tmpCascade->UnsetOwnPrimaryVtx();
 917   delete tmpCascade; tmpCascade=NULL;
 918   if(!fRecoPrimVtxSkippingTrks && !fRmTrksFromPrimVtx && !fMixEvent) {
 919     rd2Prong->UnsetOwnPrimaryVtx();
 920   }
 921   if(primVertexAOD) {delete primVertexAOD; primVertexAOD=NULL;}
 922   //---
 923
 924   return theCascade;
 925 }
 926 //-----------------------------------------------------------------------------
 927 AliAODRecoDecayHF2Prong *AliAnalysisVertexingHF::Make2Prong(
 928                                    TObjArray *twoTrackArray,AliVEvent *event,
 929                                    AliAODVertex *secVert,Double_t dca,
 930                                    Bool_t &okD0,Bool_t &okJPSI,
 931                                    Bool_t &okD0fromDstar) const
 932 {
 933   // Make 2Prong candidates and check if they pass D0toKpi or BtoJPSI
 934   // reconstruction cuts
 935   // G.E.Bruno (J/psi), A.Dainese (D0->Kpi)
 936
 937   okD0=kFALSE; okJPSI=kFALSE; okD0fromDstar=kFALSE;
 938
 939   Double_t px[2],py[2],pz[2],d0[2],d0err[2];
 940   AliESDtrack *postrack = (AliESDtrack*)twoTrackArray->UncheckedAt(0);
 941   AliESDtrack *negtrack = (AliESDtrack*)twoTrackArray->UncheckedAt(1);
 942
 943   // propagate tracks to secondary vertex, to compute inv. mass
 944   postrack->PropagateToDCA(secVert,fBzkG,kVeryBig);
 945   negtrack->PropagateToDCA(secVert,fBzkG,kVeryBig);
 946
 947   Double_t momentum[3];
 948   postrack->GetPxPyPz(momentum);
 949   px[0] = momentum[0]; py[0] = momentum[1]; pz[0] = momentum[2];
 950   negtrack->GetPxPyPz(momentum);
 951   px[1] = momentum[0]; py[1] = momentum[1]; pz[1] = momentum[2];
 952
 953
 954   // invariant mass cut (try to improve coding here..)
 955   Bool_t okMassCut=kFALSE;
 956   if(!okMassCut && fD0toKpi)   if(SelectInvMass(0,2,px,py,pz)) okMassCut=kTRUE;
 957   if(!okMassCut && fJPSItoEle) if(SelectInvMass(1,2,px,py,pz)) okMassCut=kTRUE;
 958   if(!okMassCut && fDstar)     if(SelectInvMass(3,2,px,py,pz)) okMassCut=kTRUE;
 959   if(!okMassCut) {
 960     AliDebug(2," candidate didn't pass mass cut");
 961     return 0x0;
 962   }
 963   // primary vertex to be used by this candidate
 964   AliAODVertex *primVertexAOD  = PrimaryVertex(twoTrackArray,event);
 965   if(!primVertexAOD) return 0x0;
 966
 967
 968   Double_t d0z0[2],covd0z0[3];
 969   postrack->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
 970   d0[0] = d0z0[0];
 971   d0err[0] = TMath::Sqrt(covd0z0[0]);
 972   negtrack->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
 973   d0[1] = d0z0[0];
 974   d0err[1] = TMath::Sqrt(covd0z0[0]);
 975
 976   // create the object AliAODRecoDecayHF2Prong
 977   AliAODRecoDecayHF2Prong *the2Prong = new AliAODRecoDecayHF2Prong(secVert,px,py,pz,d0,d0err,dca);
 978   the2Prong->SetOwnPrimaryVtx(primVertexAOD);
 979   UShort_t id[2]={(UShort_t)postrack->GetID(),(UShort_t)negtrack->GetID()};
 980   the2Prong->SetProngIDs(2,id);
 981   delete primVertexAOD; primVertexAOD=NULL;
 982
 983
 984   if(postrack->Charge()!=0 && negtrack->Charge()!=0) { // don't apply these cuts if it's a Dstar
 985     // select D0->Kpi
 986     Int_t checkD0,checkD0bar;
 987     if(fD0toKpi)   okD0 = the2Prong->SelectD0(fD0toKpiCuts,checkD0,checkD0bar);
 988     //if(fD0toKpi)   okD0 = (Bool_t)fCutsD0toKpi->IsSelected(the2Prong,AliRDHFCuts::kCandidate);
 989     //if(fDebug && fD0toKpi) printf("   %d\n",(Int_t)okD0);
 990     // select J/psi from B
 991     Int_t checkJPSI;
 992     if(fJPSItoEle) okJPSI        = the2Prong->SelectBtoJPSI(fBtoJPSICuts,checkJPSI);
 993     //if(fDebug && fJPSItoEle) printf("   %d\n",(Int_t)okJPSI);
 994     // select D0->Kpi from Dstar
 995     if(fDstar)     okD0fromDstar = the2Prong->SelectD0(fD0fromDstarCuts,checkD0,checkD0bar);
 996     //if(fDebug && fDstar) printf("   %d\n",(Int_t)okD0fromDstar);
 997   }
 998
 999
1000   // remove the primary vertex (was used only for selection)
1001   if(!fRecoPrimVtxSkippingTrks && !fRmTrksFromPrimVtx && !fMixEvent) {
1002     the2Prong->UnsetOwnPrimaryVtx();
1003   }
1004
1005   // get PID info from ESD
1006   Double_t esdpid0[5]={0.,0.,0.,0.,0.};
1007   if(postrack->GetStatus()&AliESDtrack::kESDpid) postrack->GetESDpid(esdpid0);
1008   Double_t esdpid1[5]={0.,0.,0.,0.,0.};
1009   if(negtrack->GetStatus()&AliESDtrack::kESDpid) negtrack->GetESDpid(esdpid1);
1010   Double_t esdpid[10];
1011   for(Int_t i=0;i<5;i++) {
1012     esdpid[i]   = esdpid0[i];
1013     esdpid[5+i] = esdpid1[i];
1014   }
1015   the2Prong->SetPID(2,esdpid);
1016
1017   return the2Prong;
1018 }
1019 //----------------------------------------------------------------------------
1020 AliAODRecoDecayHF3Prong* AliAnalysisVertexingHF::Make3Prong(
1021                              TObjArray *threeTrackArray,AliVEvent *event,
1022                              AliAODVertex *secVert,Double_t dispersion,
1023                              const AliAODVertex *vertexp1n1,const AliAODVertex *vertexp2n1,
1024                              Double_t dcap1n1,Double_t dcap2n1,Double_t dcap1p2,
1025                              Bool_t &ok3Prong) const
1026 {
1027   // Make 3Prong candidates and check if they pass Dplus or Ds or Lambdac
1028   // reconstruction cuts
1029   // E.Bruna, F.Prino
1030
1031
1032   ok3Prong=kFALSE;
1033   if(!secVert || !vertexp1n1 || !vertexp2n1) return 0x0;
1034
1035   Double_t px[3],py[3],pz[3],d0[3],d0err[3];
1036   Double_t momentum[3];
1037
1038
1039   AliESDtrack *postrack1 = (AliESDtrack*)threeTrackArray->UncheckedAt(0);
1040   AliESDtrack *negtrack  = (AliESDtrack*)threeTrackArray->UncheckedAt(1);
1041   AliESDtrack *postrack2 = (AliESDtrack*)threeTrackArray->UncheckedAt(2);
1042
1043   postrack1->PropagateToDCA(secVert,fBzkG,kVeryBig);
1044   negtrack->PropagateToDCA(secVert,fBzkG,kVeryBig);
1045   postrack2->PropagateToDCA(secVert,fBzkG,kVeryBig);
1046   postrack1->GetPxPyPz(momentum);
1047   px[0] = momentum[0]; py[0] = momentum[1]; pz[0] = momentum[2];
1048   negtrack->GetPxPyPz(momentum);
1049   px[1] = momentum[0]; py[1] = momentum[1]; pz[1] = momentum[2];
1050   postrack2->GetPxPyPz(momentum);
1051   px[2] = momentum[0]; py[2] = momentum[1]; pz[2] = momentum[2];
1052
1053   // invariant mass cut for D+, Ds, Lc
1054   Bool_t okMassCut=kFALSE;
1055   if(!okMassCut && f3Prong) if(SelectInvMass(2,3,px,py,pz)) okMassCut=kTRUE;
1056   if(!okMassCut) {
1057     AliDebug(2," candidate didn't pass mass cut");
1058     return 0x0;
1059   }
1060
1061   // primary vertex to be used by this candidate
1062   AliAODVertex *primVertexAOD  = PrimaryVertex(threeTrackArray,event);
1063   if(!primVertexAOD) return 0x0;
1064
1065   Double_t d0z0[2],covd0z0[3];
1066   postrack1->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
1067   d0[0]=d0z0[0];
1068   d0err[0] = TMath::Sqrt(covd0z0[0]);
1069   negtrack->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
1070   d0[1]=d0z0[0];
1071   d0err[1] = TMath::Sqrt(covd0z0[0]);
1072   postrack2->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
1073   d0[2]=d0z0[0];
1074   d0err[2] = TMath::Sqrt(covd0z0[0]);
1075
1076
1077   // create the object AliAODRecoDecayHF3Prong
1078   Double_t pos[3]; primVertexAOD->GetXYZ(pos);
1079   Double_t dca[3]={dcap1n1,dcap2n1,dcap1p2};
1080   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]));
1081   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]));
1082   Short_t charge=(Short_t)(postrack1->Charge()*postrack2->Charge()*negtrack->Charge());
1083   AliAODRecoDecayHF3Prong *the3Prong = new AliAODRecoDecayHF3Prong(secVert,px,py,pz,d0,d0err,dca,dispersion,dist12,dist23,charge);
1084   the3Prong->SetOwnPrimaryVtx(primVertexAOD);
1085   UShort_t id[3]={(UShort_t)postrack1->GetID(),(UShort_t)negtrack->GetID(),(UShort_t)postrack2->GetID()};
1086   the3Prong->SetProngIDs(3,id);
1087
1088   delete primVertexAOD; primVertexAOD=NULL;
1089
1090   // select D+->Kpipi, Ds->KKpi, Lc->pKpi
1091   if(f3Prong) {
1092     ok3Prong = kFALSE;
1093     Int_t ok1,ok2;
1094     Int_t dum1,dum2;
1095     if(the3Prong->SelectDplus(fDplusCuts))   ok3Prong = kTRUE;
1096     if(the3Prong->SelectDs(fDsCuts,ok1,ok2,dum1,dum2)) ok3Prong = kTRUE;
1097     if(the3Prong->SelectLc(fLcCuts,ok1,ok2)) ok3Prong = kTRUE;
1098   }
1099   //if(fDebug) printf("ok3Prong: %d\n",(Int_t)ok3Prong);
1100
1101   if(!fRecoPrimVtxSkippingTrks && !fRmTrksFromPrimVtx && !fMixEvent) {
1102     the3Prong->UnsetOwnPrimaryVtx();
1103   }
1104
1105   // get PID info from ESD
1106   Double_t esdpid0[5]={0.,0.,0.,0.,0.};
1107   if(postrack1->GetStatus()&AliESDtrack::kESDpid) postrack1->GetESDpid(esdpid0);
1108   Double_t esdpid1[5]={0.,0.,0.,0.,0.};
1109   if(negtrack->GetStatus()&AliESDtrack::kESDpid) negtrack->GetESDpid(esdpid1);
1110   Double_t esdpid2[5]={0.,0.,0.,0.,0.};
1111   if(postrack2->GetStatus()&AliESDtrack::kESDpid) postrack2->GetESDpid(esdpid2);
1112
1113   Double_t esdpid[15];
1114   for(Int_t i=0;i<5;i++) {
1115     esdpid[i]    = esdpid0[i];
1116     esdpid[5+i]  = esdpid1[i];
1117     esdpid[10+i] = esdpid2[i];
1118   }
1119   the3Prong->SetPID(3,esdpid);
1120
1121   return the3Prong;
1122 }
1123 //----------------------------------------------------------------------------
1124 AliAODRecoDecayHF4Prong* AliAnalysisVertexingHF::Make4Prong(
1125                              TObjArray *fourTrackArray,AliVEvent *event,
1126                              AliAODVertex *secVert,
1127                              const AliAODVertex *vertexp1n1,
1128                              const AliAODVertex *vertexp1n1p2,
1129                              Double_t dcap1n1,Double_t dcap1n2,
1130                              Double_t dcap2n1,Double_t dcap2n2,
1131                              Bool_t &ok4Prong) const
1132 {
1133   // Make 4Prong candidates and check if they pass D0toKpipipi
1134   // reconstruction cuts
1135   // G.E.Bruno, R.Romita
1136
1137   ok4Prong=kFALSE;
1138   if(!secVert || !vertexp1n1 || !vertexp1n1p2) return 0x0;
1139
1140   Double_t px[4],py[4],pz[4],d0[4],d0err[4];//d0z[3];
1141
1142   AliESDtrack *postrack1 = (AliESDtrack*)fourTrackArray->UncheckedAt(0);
1143   AliESDtrack *negtrack1 = (AliESDtrack*)fourTrackArray->UncheckedAt(1);
1144   AliESDtrack *postrack2 = (AliESDtrack*)fourTrackArray->UncheckedAt(2);
1145   AliESDtrack *negtrack2 = (AliESDtrack*)fourTrackArray->UncheckedAt(3);
1146
1147   postrack1->PropagateToDCA(secVert,fBzkG,kVeryBig);
1148   negtrack1->PropagateToDCA(secVert,fBzkG,kVeryBig);
1149   postrack2->PropagateToDCA(secVert,fBzkG,kVeryBig);
1150   negtrack2->PropagateToDCA(secVert,fBzkG,kVeryBig);
1151
1152   Double_t momentum[3];
1153   postrack1->GetPxPyPz(momentum);
1154   px[0] = momentum[0]; py[0] = momentum[1]; pz[0] = momentum[2];
1155   negtrack1->GetPxPyPz(momentum);
1156   px[1] = momentum[0]; py[1] = momentum[1]; pz[1] = momentum[2];
1157   postrack2->GetPxPyPz(momentum);
1158   px[2] = momentum[0]; py[2] = momentum[1]; pz[2] = momentum[2];
1159   negtrack2->GetPxPyPz(momentum);
1160   px[3] = momentum[0]; py[3] = momentum[1]; pz[3] = momentum[2];
1161
1162   // invariant mass cut for rho or D0 (try to improve coding here..)
1163   Bool_t okMassCut=kFALSE;
1164   if(!okMassCut && TMath::Abs(fD0to4ProngsCuts[8])<1.e-13){      //no PID, to be implemented with PID
1165     if(SelectInvMass(4,4,px,py,pz)) okMassCut=kTRUE;
1166   }
1167   if(!okMassCut) {
1168     //if(fDebug) printf(" candidate didn't pass mass cut\n");
1169     //printf(" candidate didn't pass mass cut\n");
1170     return 0x0;
1171   }
1172
1173   // primary vertex to be used by this candidate
1174   AliAODVertex *primVertexAOD  = PrimaryVertex(fourTrackArray,event);
1175   if(!primVertexAOD) return 0x0;
1176
1177   Double_t d0z0[2],covd0z0[3];
1178   postrack1->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
1179   d0[0]=d0z0[0];
1180   d0err[0] = TMath::Sqrt(covd0z0[0]);
1181   negtrack1->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
1182   d0[1]=d0z0[0];
1183   d0err[1] = TMath::Sqrt(covd0z0[0]);
1184   postrack2->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
1185   d0[2]=d0z0[0];
1186   d0err[2] = TMath::Sqrt(covd0z0[0]);
1187   negtrack2->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
1188   d0[3]=d0z0[0];
1189   d0err[3] = TMath::Sqrt(covd0z0[0]);
1190
1191
1192   // create the object AliAODRecoDecayHF4Prong
1193   Double_t pos[3]; primVertexAOD->GetXYZ(pos);
1194   Double_t dca[6]={dcap1n1,0.,dcap1n2,dcap2n1,0.,dcap2n2};
1195   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]));
1196   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]));
1197   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]));
1198   Short_t charge=0;
1199   AliAODRecoDecayHF4Prong *the4Prong = new AliAODRecoDecayHF4Prong(secVert,px,py,pz,d0,d0err,dca,dist12,dist3,dist4,charge);
1200   the4Prong->SetOwnPrimaryVtx(primVertexAOD);
1201   UShort_t id[4]={(UShort_t)postrack1->GetID(),(UShort_t)negtrack1->GetID(),(UShort_t)postrack2->GetID(),(UShort_t)negtrack2->GetID()};
1202   the4Prong->SetProngIDs(4,id);
1203
1204   delete primVertexAOD; primVertexAOD=NULL;
1205
1206   Int_t checkD0,checkD0bar;
1207   ok4Prong=the4Prong->SelectD0(fD0to4ProngsCuts,checkD0,checkD0bar);
1208
1209   if(!fRecoPrimVtxSkippingTrks && !fRmTrksFromPrimVtx && !fMixEvent) {
1210     the4Prong->UnsetOwnPrimaryVtx();
1211   }
1212
1213
1214   // get PID info from ESD
1215   Double_t esdpid0[5]={0.,0.,0.,0.,0.};
1216   if(postrack1->GetStatus()&AliESDtrack::kESDpid) postrack1->GetESDpid(esdpid0);
1217   Double_t esdpid1[5]={0.,0.,0.,0.,0.};
1218   if(negtrack1->GetStatus()&AliESDtrack::kESDpid) negtrack1->GetESDpid(esdpid1);
1219   Double_t esdpid2[5]={0.,0.,0.,0.,0.};
1220   if(postrack2->GetStatus()&AliESDtrack::kESDpid) postrack2->GetESDpid(esdpid2);
1221   Double_t esdpid3[5]={0.,0.,0.,0.,0.};
1222   if(negtrack2->GetStatus()&AliESDtrack::kESDpid) negtrack2->GetESDpid(esdpid3);
1223
1224   Double_t esdpid[20];
1225   for(Int_t i=0;i<5;i++) {
1226     esdpid[i]    = esdpid0[i];
1227     esdpid[5+i]  = esdpid1[i];
1228     esdpid[10+i] = esdpid2[i];
1229     esdpid[15+i] = esdpid3[i];
1230   }
1231   the4Prong->SetPID(4,esdpid);
1232
1233   return the4Prong;
1234 }
1235 //-----------------------------------------------------------------------------
1236 AliAODVertex* AliAnalysisVertexingHF::PrimaryVertex(const TObjArray *trkArray,
1237                                                     AliVEvent *event) const
1238 {
1239   // Returns primary vertex to be used for this candidate
1240
1241   AliESDVertex *vertexESD = 0;
1242   AliAODVertex *vertexAOD = 0;
1243
1244
1245   if(!fRecoPrimVtxSkippingTrks && !fRmTrksFromPrimVtx) {
1246     // primary vertex from the input event
1247
1248     vertexESD = new AliESDVertex(*fV1);
1249
1250   } else {
1251     // primary vertex specific to this candidate
1252
1253     Int_t nTrks = trkArray->GetEntriesFast();
1254     AliVertexerTracks *vertexer = new AliVertexerTracks(event->GetMagneticField());
1255
1256     if(fRecoPrimVtxSkippingTrks) {
1257       // recalculating the vertex
1258
1259       if(strstr(fV1->GetTitle(),"VertexerTracksWithConstraint")) {
1260         Float_t diamondcovxy[3];
1261         event->GetDiamondCovXY(diamondcovxy);
1262         Double_t pos[3]={event->GetDiamondX(),event->GetDiamondY(),0.};
1263         Double_t cov[6]={diamondcovxy[0],diamondcovxy[1],diamondcovxy[2],0.,0.,10.*10.};
1264         AliESDVertex *diamond = new AliESDVertex(pos,cov,1.,1);
1265         vertexer->SetVtxStart(diamond);
1266         delete diamond; diamond=NULL;
1267         if(strstr(fV1->GetTitle(),"VertexerTracksWithConstraintOnlyFitter"))
1268           vertexer->SetOnlyFitter();
1269       }
1270       Int_t skipped[1000];
1271       Int_t nTrksToSkip=0,id;
1272       AliExternalTrackParam *t = 0;
1273       for(Int_t i=0; i<nTrks; i++) {
1274         t = (AliExternalTrackParam*)trkArray->UncheckedAt(i);
1275         id = (Int_t)t->GetID();
1276         if(id<0) continue;
1277         skipped[nTrksToSkip++] = id;
1278       }
1279       // TEMPORARY FIX
1280       // For AOD, skip also tracks without covariance matrix
1281       if(fInputAOD) {
1282         Double_t covtest[21];
1283         for(Int_t j=0; j<event->GetNumberOfTracks(); j++) {
1284           AliVTrack *vtrack = (AliVTrack*)event->GetTrack(j);
1285           if(!vtrack->GetCovarianceXYZPxPyPz(covtest)) {
1286             id = (Int_t)t->GetID();
1287             if(id<0) continue;
1288             skipped[nTrksToSkip++] = id;
1289           }
1290         }
1291       }
1292       //
1293       vertexer->SetSkipTracks(nTrksToSkip,skipped);
1294       vertexESD = (AliESDVertex*)vertexer->FindPrimaryVertex(event);
1295
1296     } else if(fRmTrksFromPrimVtx) {
1297       // removing the prongs tracks
1298
1299       TObjArray rmArray(nTrks);
1300       UShort_t *rmId = new UShort_t[nTrks];
1301       AliESDtrack *esdTrack = 0;
1302       AliESDtrack *t = 0;
1303       for(Int_t i=0; i<nTrks; i++) {
1304         t = (AliESDtrack*)trkArray->UncheckedAt(i);
1305         esdTrack = new AliESDtrack(*t);
1306         rmArray.AddLast(esdTrack);
1307         if(esdTrack->GetID()>=0) {
1308           rmId[i]=(UShort_t)esdTrack->GetID();
1309         } else {
1310           rmId[i]=9999;
1311         }
1312       }
1313       Float_t diamondxy[2]={event->GetDiamondX(),event->GetDiamondY()};
1314       vertexESD = vertexer->RemoveTracksFromVertex(fV1,&rmArray,rmId,diamondxy);
1315       delete [] rmId; rmId=NULL;
1316       rmArray.Delete();
1317
1318     }
1319
1320     if(!vertexESD) return vertexAOD;
1321     if(vertexESD->GetNContributors()<=0) {
1322       AliDebug(2,"vertexing failed");
1323       delete vertexESD; vertexESD=NULL;
1324       return vertexAOD;
1325     }
1326
1327     delete vertexer; vertexer=NULL;
1328
1329   }
1330
1331   // convert to AliAODVertex
1332   Double_t pos[3],cov[6],chi2perNDF;
1333   vertexESD->GetXYZ(pos); // position
1334   vertexESD->GetCovMatrix(cov); //covariance matrix
1335   chi2perNDF = vertexESD->GetChi2toNDF();
1336   delete vertexESD; vertexESD=NULL;
1337
1338   vertexAOD = new AliAODVertex(pos,cov,chi2perNDF);
1339
1340   return vertexAOD;
1341 }
1342 //-----------------------------------------------------------------------------
1343 void AliAnalysisVertexingHF::PrintStatus() const {
1344   // Print parameters being used
1345
1346   //printf("Preselections:\n");
1347   //   fTrackFilter->Dump();
1348   if(fSecVtxWithKF) {
1349     printf("Secondary vertex with Kalman filter package (AliKFParticle)\n");
1350   } else {
1351     printf("Secondary vertex with AliVertexerTracks\n");
1352   }
1353   if(fRecoPrimVtxSkippingTrks) printf("RecoPrimVtxSkippingTrks\n");
1354   if(fRmTrksFromPrimVtx) printf("RmTrksFromPrimVtx\n");
1355   if(fD0toKpi) {
1356     if(fCutsD0toKpi) fCutsD0toKpi->PrintAll();
1357     printf("Reconstruct D0->Kpi candidates with cuts:\n");
1358     printf("    |M-MD0| [GeV]    < %f\n",fD0toKpiCuts[0]);
1359     printf("    dca    [cm]  < %f\n",fD0toKpiCuts[1]);
1360     printf("    cosThetaStar     < %f\n",fD0toKpiCuts[2]);
1361     printf("    pTK     [GeV/c]    > %f\n",fD0toKpiCuts[3]);
1362     printf("    pTpi    [GeV/c]    > %f\n",fD0toKpiCuts[4]);
1363     printf("    |d0K|  [cm]  < %f\n",fD0toKpiCuts[5]);
1364     printf("    |d0pi| [cm]  < %f\n",fD0toKpiCuts[6]);
1365     printf("    d0d0  [cm^2] < %f\n",fD0toKpiCuts[7]);
1366     printf("    cosThetaPoint    > %f\n",fD0toKpiCuts[8]);
1367   }
1368   if(fDstar) {
1369     if(fFindVertexForDstar) {
1370       printf("    Reconstruct a secondary vertex for the D*\n");
1371     } else {
1372       printf("    Assume the D* comes from the primary vertex\n");
1373     }
1374     printf("    |M-MD*| [GeV]    < %f\n",fDstarCuts[0]);
1375     printf("    |M_Kpipi-M_Kpi-(MD*-MD0)| [GeV]  < %f\n",fDstarCuts[1]);
1376     printf("    pTpisoft [GeV/c]    > %f\n",fDstarCuts[2]);
1377     printf("    pTpisoft [GeV/c]    < %f\n",fDstarCuts[3]);
1378     printf("    Theta(pisoft,D0plane) < %f\n",fDstarCuts[4]);
1379     printf("Reconstruct D*->D0pi candidates with cuts:\n");
1380     printf("   D0 from D* cuts:\n");
1381     printf("    |M-MD0| [GeV]    < %f\n",fD0fromDstarCuts[0]);
1382     printf("    dca    [cm]  < %f\n",fD0fromDstarCuts[1]);
1383     printf("    cosThetaStar     < %f\n",fD0fromDstarCuts[2]);
1384     printf("    pTK     [GeV/c]    > %f\n",fD0fromDstarCuts[3]);
1385     printf("    pTpi    [GeV/c]    > %f\n",fD0fromDstarCuts[4]);
1386     printf("    |d0K|  [cm]  < %f\n",fD0fromDstarCuts[5]);
1387     printf("    |d0pi| [cm]  < %f\n",fD0fromDstarCuts[6]);
1388     printf("    d0d0  [cm^2] < %f\n",fD0fromDstarCuts[7]);
1389     printf("    cosThetaPoint    > %f\n",fD0fromDstarCuts[8]);
1390   }
1391   if(fJPSItoEle) {
1392     printf("Reconstruct J/psi from B candidates with cuts:\n");
1393     printf("    |M-MJPSI| [GeV]    < %f\n",fBtoJPSICuts[0]);
1394     printf("    dca    [cm]  < %f\n",fBtoJPSICuts[1]);
1395     printf("    cosThetaStar     < %f\n",fBtoJPSICuts[2]);
1396     printf("    pTP     [GeV/c]    > %f\n",fBtoJPSICuts[3]);
1397     printf("    pTN    [GeV/c]    > %f\n",fBtoJPSICuts[4]);
1398     printf("    |d0P|  [cm]  < %f\n",fBtoJPSICuts[5]);
1399     printf("    |d0N| [cm]  < %f\n",fBtoJPSICuts[6]);
1400     printf("    d0d0  [cm^2] < %f\n",fBtoJPSICuts[7]);
1401     printf("    cosThetaPoint    > %f\n",fBtoJPSICuts[8]);
1402   }
1403   if(f3Prong) {
1404     printf("Reconstruct 3 prong candidates.\n");
1405     printf("  D+->Kpipi cuts:\n");
1406     printf("    |M-MD+| [GeV]    < %f\n",fDplusCuts[0]);
1407     printf("    pTK     [GeV/c]    > %f\n",fDplusCuts[1]);
1408     printf("    pTPi    [GeV/c]    > %f\n",fDplusCuts[2]);
1409     printf("    |d0K|  [cm]  > %f\n",fDplusCuts[3]);
1410     printf("    |d0Pi| [cm]  > %f\n",fDplusCuts[4]);
1411     printf("    dist12    [cm]  < %f\n",fDplusCuts[5]);
1412     printf("    sigmavert [cm]   < %f\n",fDplusCuts[6]);
1413     printf("    dist prim-sec [cm] > %f\n",fDplusCuts[7]);
1414     printf("    pM=Max{pT1,pT2,pT3} [GeV/c] > %f\n",fDplusCuts[8]);
1415     printf("    cosThetaPoint    > %f\n",fDplusCuts[9]);
1416     printf("    Sum d0^2 [cm^2]  > %f\n",fDplusCuts[10]);
1417     printf("    dca cut [cm]  < %f\n",fDplusCuts[11]);
1418     printf("  Ds->KKpi cuts:\n");
1419     printf("    |M-MDs| [GeV]    < %f\n",fDsCuts[0]);
1420     printf("    pTK     [GeV/c]    > %f\n",fDsCuts[1]);
1421     printf("    pTPi    [GeV/c]    > %f\n",fDsCuts[2]);
1422     printf("    |d0K|  [cm]  > %f\n",fDsCuts[3]);
1423     printf("    |d0Pi| [cm]  > %f\n",fDsCuts[4]);
1424     printf("    dist12    [cm]  < %f\n",fDsCuts[5]);
1425     printf("    sigmavert [cm]   < %f\n",fDsCuts[6]);
1426     printf("    dist prim-sec [cm] > %f\n",fDsCuts[7]);
1427     printf("    pM=Max{pT1,pT2,pT3} [GeV/c] > %f\n",fDsCuts[8]);
1428     printf("    cosThetaPoint    > %f\n",fDsCuts[9]);
1429     printf("    Sum d0^2 [cm^2]  > %f\n",fDsCuts[10]);
1430     printf("    dca cut [cm]  < %f\n",fDsCuts[11]);
1431     printf("    Inv. Mass  phi [GeV]  < %f\n",fDsCuts[12]);
1432     printf("    Inv. Mass  K0* [GeV]  < %f\n",fDsCuts[13]);
1433     printf("  Lc->pKpi cuts:\n");
1434     printf("    |M-MLc| [GeV]    < %f\n",fLcCuts[0]);
1435     printf("    pTP     [GeV/c]    > %f\n",fLcCuts[1]);
1436     printf("    pTPi and pTK [GeV/c]    > %f\n",fLcCuts[2]);
1437     printf("    |d0P|  [cm]  > %f\n",fLcCuts[3]);
1438     printf("    |d0Pi| and |d0K| [cm]  > %f\n",fLcCuts[4]);
1439     printf("    dist12    [cm]  < %f\n",fLcCuts[5]);
1440     printf("    sigmavert [cm]   < %f\n",fLcCuts[6]);
1441     printf("    dist prim-sec [cm] > %f\n",fLcCuts[7]);
1442     printf("    pM=Max{pT1,pT2,pT3} [GeV/c] > %f\n",fLcCuts[8]);
1443     printf("    cosThetaPoint    > %f\n",fLcCuts[9]);
1444     printf("    Sum d0^2 [cm^2]  > %f\n",fLcCuts[10]);
1445     printf("    dca cut [cm]  < %f\n",fLcCuts[11]);
1446   }
1447
1448   return;
1449 }
1450 //-----------------------------------------------------------------------------
1451 AliAODVertex* AliAnalysisVertexingHF::ReconstructSecondaryVertex(TObjArray *trkArray,
1452                                                                  Double_t &dispersion,Bool_t useTRefArray) const
1453 {
1454   // Secondary vertex reconstruction with AliVertexerTracks or AliKFParticle
1455
1456   AliESDVertex *vertexESD = 0;
1457   AliAODVertex *vertexAOD = 0;
1458
1459   if(!fSecVtxWithKF) { // AliVertexerTracks
1460
1461     AliVertexerTracks *vertexer = new AliVertexerTracks(fBzkG);
1462     vertexer->SetVtxStart(fV1);
1463     vertexESD = (AliESDVertex*)vertexer->VertexForSelectedESDTracks(trkArray);
1464     delete vertexer; vertexer=NULL;
1465
1466     if(!vertexESD) return vertexAOD;
1467
1468     if(vertexESD->GetNContributors()!=trkArray->GetEntriesFast()) {
1469       AliDebug(2,"vertexing failed");
1470       delete vertexESD; vertexESD=NULL;
1471       return vertexAOD;
1472     }
1473
1474   } else { // Kalman Filter vertexer (AliKFParticle)
1475
1476     AliKFParticle::SetField(fBzkG);
1477
1478     AliKFVertex vertexKF;
1479
1480     Int_t nTrks = trkArray->GetEntriesFast();
1481     for(Int_t i=0; i<nTrks; i++) {
1482       AliESDtrack *esdTrack = (AliESDtrack*)trkArray->At(i);
1483       AliKFParticle daughterKF(*esdTrack,211);
1484       vertexKF.AddDaughter(daughterKF);
1485     }
1486     vertexESD = new AliESDVertex(vertexKF.Parameters(),
1487                                  vertexKF.CovarianceMatrix(),
1488                                  vertexKF.GetChi2(),
1489                                  vertexKF.GetNContributors());
1490
1491   }
1492
1493   // convert to AliAODVertex
1494   Double_t pos[3],cov[6],chi2perNDF;
1495   vertexESD->GetXYZ(pos); // position
1496   vertexESD->GetCovMatrix(cov); //covariance matrix
1497   chi2perNDF = vertexESD->GetChi2toNDF();
1498   dispersion = vertexESD->GetDispersion();
1499   delete vertexESD; vertexESD=NULL;
1500
1501   Int_t nprongs= (useTRefArray ? 0 : trkArray->GetEntriesFast());
1502   vertexAOD = new AliAODVertex(pos,cov,chi2perNDF,0x0,-1,AliAODVertex::kUndef,nprongs);
1503
1504   return vertexAOD;
1505 }
1506 //-----------------------------------------------------------------------------
1507 Bool_t AliAnalysisVertexingHF::SelectInvMass(Int_t decay,
1508                                              Int_t nprongs,
1509                                              Double_t *px,
1510                                              Double_t *py,
1511                                              Double_t *pz) const {
1512   // Check invariant mass cut
1513
1514   Short_t dummycharge=0;
1515   Double_t *dummyd0 = new Double_t[nprongs];
1516   for(Int_t ip=0;ip<nprongs;ip++) dummyd0[ip]=0.;
1517   AliAODRecoDecay *rd = new AliAODRecoDecay(0x0,nprongs,dummycharge,px,py,pz,dummyd0);
1518   delete [] dummyd0; dummyd0=NULL;
1519
1520   UInt_t pdg2[2],pdg3[3],pdg4[4];
1521   Double_t mPDG,minv;
1522
1523   Bool_t retval=kFALSE;
1524   switch (decay)
1525     {
1526     case 0:                  // D0->Kpi
1527       pdg2[0]=211; pdg2[1]=321;
1528       mPDG=TDatabasePDG::Instance()->GetParticle(421)->Mass();
1529       minv = rd->InvMass(nprongs,pdg2);
1530       if(TMath::Abs(minv-mPDG)<fD0toKpiCuts[0]) retval=kTRUE;
1531       //if(TMath::Abs(minv-mPDG)<fCutsD0toKpi->GetMassCut()) retval=kTRUE;
1532       pdg2[0]=321; pdg2[1]=211;
1533       minv = rd->InvMass(nprongs,pdg2);
1534       if(TMath::Abs(minv-mPDG)<fD0toKpiCuts[0]) retval=kTRUE;
1535       //if(TMath::Abs(minv-mPDG)<fCutsD0toKpi->GetMassCut()) retval=kTRUE;
1536       break;
1537     case 1:                  // JPSI->ee
1538       pdg2[0]=11; pdg2[1]=11;
1539       mPDG=TDatabasePDG::Instance()->GetParticle(443)->Mass();
1540       minv = rd->InvMass(nprongs,pdg2);
1541       if(TMath::Abs(minv-mPDG)<fBtoJPSICuts[0]) retval=kTRUE;
1542       break;
1543     case 2:                  // D+->Kpipi
1544       pdg3[0]=211; pdg3[1]=321; pdg3[2]=211;
1545       mPDG=TDatabasePDG::Instance()->GetParticle(411)->Mass();
1546       minv = rd->InvMass(nprongs,pdg3);
1547       if(TMath::Abs(minv-mPDG)<fDplusCuts[0]) retval=kTRUE;
1548                             // Ds+->KKpi
1549       pdg3[0]=321; pdg3[1]=321; pdg3[2]=211;
1550       mPDG=TDatabasePDG::Instance()->GetParticle(431)->Mass();
1551       minv = rd->InvMass(nprongs,pdg3);
1552       if(TMath::Abs(minv-mPDG)<fDsCuts[0]) retval=kTRUE;
1553       pdg3[0]=211; pdg3[1]=321; pdg3[2]=321;
1554       minv = rd->InvMass(nprongs,pdg3);
1555       if(TMath::Abs(minv-mPDG)<fDsCuts[0]) retval=kTRUE;
1556                             // Lc->pKpi
1557       pdg3[0]=2212; pdg3[1]=321; pdg3[2]=211;
1558       mPDG=TDatabasePDG::Instance()->GetParticle(4122)->Mass();
1559       minv = rd->InvMass(nprongs,pdg3);
1560       if(TMath::Abs(minv-mPDG)<fLcCuts[0]) retval=kTRUE;
1561       pdg3[0]=211; pdg3[1]=321; pdg3[2]=2212;
1562       minv = rd->InvMass(nprongs,pdg3);
1563       if(TMath::Abs(minv-mPDG)<fLcCuts[0]) retval=kTRUE;
1564       break;
1565     case 3:                  // D*->D0pi
1566       pdg2[0]=211; pdg2[1]=421; // in twoTrackArrayCasc we put the pion first
1567       mPDG=TDatabasePDG::Instance()->GetParticle(413)->Mass();
1568       minv = rd->InvMass(nprongs,pdg2);
1569       if(TMath::Abs(minv-mPDG)<fDstarCuts[0]) retval=kTRUE;
1570       break;
1571     case 4:                 // D0->K3pi without PID
1572       pdg4[0]=321; pdg4[1]=211; pdg4[2]=211; pdg4[3]=211;
1573       mPDG=TDatabasePDG::Instance()->GetParticle(421)->Mass();
1574       minv = rd->InvMass(nprongs,pdg4);
1575       if(TMath::Abs(minv-mPDG)<fD0to4ProngsCuts[0])
1576         retval=kTRUE;
1577       pdg4[0]=211; pdg4[1]=321; pdg4[2]=211; pdg4[3]=211;
1578       mPDG=TDatabasePDG::Instance()->GetParticle(421)->Mass();
1579       minv = rd->InvMass(nprongs,pdg4);
1580       if(TMath::Abs(minv-mPDG)<fD0to4ProngsCuts[0]) retval=kTRUE;
1581       pdg4[0]=211; pdg4[1]=211; pdg4[2]=321; pdg4[3]=211;
1582       mPDG=TDatabasePDG::Instance()->GetParticle(421)->Mass();
1583       minv = rd->InvMass(nprongs,pdg4);
1584       if(TMath::Abs(minv-mPDG)<fD0to4ProngsCuts[0]) retval=kTRUE;
1585       pdg4[0]=211; pdg4[1]=211; pdg4[2]=211; pdg4[3]=321;
1586       mPDG=TDatabasePDG::Instance()->GetParticle(421)->Mass();
1587       minv = rd->InvMass(nprongs,pdg4);
1588       if(TMath::Abs(minv-mPDG)<fD0to4ProngsCuts[0]) retval=kTRUE;
1589       break;
1590     default:
1591       printf("SelectInvMass(): wrong decay selection\n");
1592       break;
1593     }
1594
1595   delete rd; rd=NULL;
1596
1597   return retval;
1598 }
1599 //-----------------------------------------------------------------------------
1600 void AliAnalysisVertexingHF::SelectTracksAndCopyVertex(const AliVEvent *event,
1601                                    TObjArray &seleTrksArray,Int_t &nSeleTrks,
1602                                    UChar_t *seleFlags,Int_t *evtNumber)
1603 {
1604   // Apply single-track preselection.
1605   // Fill a TObjArray with selected tracks (for displaced vertices or
1606   // soft pion from D*). Selection flag stored in seleFlags.
1607   // Create the AliESDVertex object (convert from AliAODVertex if necessary)
1608   // In case of AOD input, also fill fAODMap for track index<->ID
1609
1610   const AliVVertex *vprimary = event->GetPrimaryVertex();
1611
1612   if(fV1) { delete fV1; fV1=NULL; }
1613   if(fAODMap) { delete fAODMap; fAODMap=NULL; }
1614
1615   Int_t nindices=0;
1616   UShort_t *indices = 0;
1617   Double_t pos[3],cov[6];
1618
1619   if(!fInputAOD) { // ESD
1620     fV1 = new AliESDVertex(*((AliESDVertex*)vprimary));
1621   } else {         // AOD
1622     vprimary->GetXYZ(pos);
1623     vprimary->GetCovarianceMatrix(cov);
1624     fV1 = new AliESDVertex(pos,cov,100.,100,vprimary->GetName());
1625     indices = new UShort_t[event->GetNumberOfTracks()];
1626     fAODMapSize = 100000;
1627     fAODMap = new Int_t[fAODMapSize];
1628   }
1629
1630
1631   Int_t entries = (Int_t)event->GetNumberOfTracks();
1632   Bool_t okDisplaced=kFALSE,okSoftPi=kFALSE;
1633   nSeleTrks=0;
1634
1635   // transfer ITS tracks from event to arrays
1636   for(Int_t i=0; i<entries; i++) {
1637     AliVTrack *track;
1638     track = (AliVTrack*)event->GetTrack(i);
1639
1640     // skip pure ITS SA tracks
1641     if(track->GetStatus()&AliESDtrack::kITSpureSA) continue;
1642
1643     // TEMPORARY: check that the cov matrix is there
1644     Double_t covtest[21];
1645     if(!track->GetCovarianceXYZPxPyPz(covtest)) continue;
1646     //
1647
1648     if(fInputAOD) {
1649       AliAODTrack *aodt = (AliAODTrack*)track;
1650       if(aodt->GetUsedForPrimVtxFit()) {
1651         indices[nindices]=aodt->GetID(); nindices++;
1652       }
1653       fAODMap[(Int_t)aodt->GetID()] = i;
1654     }
1655
1656     AliESDtrack *esdt = 0;
1657
1658     if(!fInputAOD) {
1659       esdt = (AliESDtrack*)track;
1660     } else {
1661       esdt = new AliESDtrack(track);
1662     }
1663
1664     // single track selection
1665     okDisplaced=kFALSE; okSoftPi=kFALSE;
1666     if(fMixEvent){
1667       evtNumber[i]=((AliMixedEvent*)event)->EventIndex(i);
1668       const AliVVertex* eventVtx=((AliMixedEvent*)event)->GetEventVertex(i);
1669       Double_t vtxPos[3],primPos[3],primCov[6],trasl[3];
1670       eventVtx->GetXYZ(vtxPos);
1671       vprimary->GetXYZ(primPos);
1672       eventVtx->GetCovarianceMatrix(primCov);
1673       for(Int_t ind=0;ind<3;ind++){
1674         trasl[ind]=vtxPos[ind]-primPos[ind];
1675       }
1676
1677       Bool_t isTransl=esdt->Translate(trasl,primCov);
1678       if(!isTransl) {
1679         delete esdt;
1680         esdt = NULL;
1681         continue;
1682       }
1683     }
1684
1685     if(SingleTrkCuts(esdt,okDisplaced,okSoftPi)) {
1686       seleTrksArray.AddLast(esdt);
1687       seleFlags[nSeleTrks]=0;
1688       if(okDisplaced) SETBIT(seleFlags[nSeleTrks],kBitDispl);
1689       if(okSoftPi)    SETBIT(seleFlags[nSeleTrks],kBitSoftPi);
1690       nSeleTrks++;
1691     } else {
1692       if(fInputAOD) delete esdt;
1693       esdt = NULL;
1694       continue;
1695     }
1696
1697   } // end loop on tracks
1698
1699   // primary vertex from AOD
1700   if(fInputAOD) {
1701     delete fV1; fV1=NULL;
1702     vprimary->GetXYZ(pos);
1703     vprimary->GetCovarianceMatrix(cov);
1704     Double_t chi2toNDF = vprimary->GetChi2perNDF();
1705     Int_t ncontr=nindices;
1706     if(!strcmp(vprimary->GetTitle(),"VertexerTracksWithContraint")) ncontr += 1;
1707     Double_t chi2=chi2toNDF*(2.*(Double_t)ncontr-3.);
1708     fV1 = new AliESDVertex(pos,cov,chi2,ncontr,vprimary->GetName());
1709     fV1->SetTitle(vprimary->GetTitle());
1710     fV1->SetIndices(nindices,indices);
1711   }
1712   if(indices) { delete [] indices; indices=NULL; }
1713
1714
1715   return;
1716 }
1717 //-----------------------------------------------------------------------------
1718 void AliAnalysisVertexingHF::SetD0toKpiCuts(Double_t cut0,Double_t cut1,
1719                                    Double_t cut2,Double_t cut3,Double_t cut4,
1720                                    Double_t cut5,Double_t cut6,
1721                                    Double_t cut7,Double_t cut8)
1722 {
1723   // Set the cuts for D0 selection
1724   fD0toKpiCuts[0] = cut0;
1725   fD0toKpiCuts[1] = cut1;
1726   fD0toKpiCuts[2] = cut2;
1727   fD0toKpiCuts[3] = cut3;
1728   fD0toKpiCuts[4] = cut4;
1729   fD0toKpiCuts[5] = cut5;
1730   fD0toKpiCuts[6] = cut6;
1731   fD0toKpiCuts[7] = cut7;
1732   fD0toKpiCuts[8] = cut8;
1733
1734   return;
1735 }
1736 //-----------------------------------------------------------------------------
1737 void AliAnalysisVertexingHF::SetD0toKpiCuts(const Double_t cuts[9])
1738 {
1739   // Set the cuts for D0 selection
1740
1741   for(Int_t i=0; i<9; i++) fD0toKpiCuts[i] = cuts[i];
1742
1743   return;
1744 }
1745 //-----------------------------------------------------------------------------
1746 void AliAnalysisVertexingHF::SetD0fromDstarCuts(Double_t cut0,Double_t cut1,
1747                                    Double_t cut2,Double_t cut3,Double_t cut4,
1748                                    Double_t cut5,Double_t cut6,
1749                                    Double_t cut7,Double_t cut8)
1750 {
1751   // Set the cuts for D0 from D* selection
1752   fD0fromDstarCuts[0] = cut0;
1753   fD0fromDstarCuts[1] = cut1;
1754   fD0fromDstarCuts[2] = cut2;
1755   fD0fromDstarCuts[3] = cut3;
1756   fD0fromDstarCuts[4] = cut4;
1757   fD0fromDstarCuts[5] = cut5;
1758   fD0fromDstarCuts[6] = cut6;
1759   fD0fromDstarCuts[7] = cut7;
1760   fD0fromDstarCuts[8] = cut8;
1761
1762   return;
1763 }
1764 //-----------------------------------------------------------------------------
1765 void AliAnalysisVertexingHF::SetD0fromDstarCuts(const Double_t cuts[9])
1766 {
1767   // Set the cuts for D0 from D* selection
1768
1769   for(Int_t i=0; i<9; i++) fD0fromDstarCuts[i] = cuts[i];
1770
1771   return;
1772 }
1773 //-----------------------------------------------------------------------------
1774 void AliAnalysisVertexingHF::SetDstarCuts(Double_t cut0,Double_t cut1,
1775                                           Double_t cut2,Double_t cut3,
1776                                           Double_t cut4)
1777 {
1778   // Set the cuts for D* selection
1779   fDstarCuts[0] = cut0;
1780   fDstarCuts[1] = cut1;
1781   fDstarCuts[2] = cut2;
1782   fDstarCuts[3] = cut3;
1783   fDstarCuts[4] = cut4;
1784
1785   return;
1786 }
1787 //-----------------------------------------------------------------------------
1788 void AliAnalysisVertexingHF::SetDstarCuts(const Double_t cuts[5])
1789 {
1790   // Set the cuts for D* selection
1791
1792   for(Int_t i=0; i<5; i++) fDstarCuts[i] = cuts[i];
1793
1794   return;
1795 }
1796 //-----------------------------------------------------------------------------
1797 void AliAnalysisVertexingHF::SetBtoJPSICuts(Double_t cut0,Double_t cut1,
1798                                    Double_t cut2,Double_t cut3,Double_t cut4,
1799                                    Double_t cut5,Double_t cut6,
1800                                    Double_t cut7,Double_t cut8)
1801 {
1802   // Set the cuts for J/psi from B selection
1803   fBtoJPSICuts[0] = cut0;
1804   fBtoJPSICuts[1] = cut1;
1805   fBtoJPSICuts[2] = cut2;
1806   fBtoJPSICuts[3] = cut3;
1807   fBtoJPSICuts[4] = cut4;
1808   fBtoJPSICuts[5] = cut5;
1809   fBtoJPSICuts[6] = cut6;
1810   fBtoJPSICuts[7] = cut7;
1811   fBtoJPSICuts[8] = cut8;
1812
1813   return;
1814 }
1815 //-----------------------------------------------------------------------------
1816 void AliAnalysisVertexingHF::SetBtoJPSICuts(const Double_t cuts[9])
1817 {
1818   // Set the cuts for J/psi from B selection
1819
1820   for(Int_t i=0; i<9; i++) fBtoJPSICuts[i] = cuts[i];
1821
1822   return;
1823 }
1824 //-----------------------------------------------------------------------------
1825 void AliAnalysisVertexingHF::SetDplusCuts(Double_t cut0,Double_t cut1,
1826                                    Double_t cut2,Double_t cut3,Double_t cut4,
1827                                    Double_t cut5,Double_t cut6,
1828                                    Double_t cut7,Double_t cut8,
1829                                    Double_t cut9,Double_t cut10,Double_t cut11)
1830 {
1831   // Set the cuts for Dplus->Kpipi selection
1832   fDplusCuts[0] = cut0;
1833   fDplusCuts[1] = cut1;
1834   fDplusCuts[2] = cut2;
1835   fDplusCuts[3] = cut3;
1836   fDplusCuts[4] = cut4;
1837   fDplusCuts[5] = cut5;
1838   fDplusCuts[6] = cut6;
1839   fDplusCuts[7] = cut7;
1840   fDplusCuts[8] = cut8;
1841   fDplusCuts[9] = cut9;
1842   fDplusCuts[10] = cut10;
1843   fDplusCuts[11] = cut11;
1844
1845   return;
1846 }
1847 //-----------------------------------------------------------------------------
1848 void AliAnalysisVertexingHF::SetDplusCuts(const Double_t cuts[12])
1849 {
1850   // Set the cuts for Dplus->Kpipi selection
1851
1852   for(Int_t i=0; i<12; i++) fDplusCuts[i] = cuts[i];
1853
1854   return;
1855 }
1856 //-----------------------------------------------------------------------------
1857 void AliAnalysisVertexingHF::SetDsCuts(Double_t cut0,Double_t cut1,
1858                                        Double_t cut2,Double_t cut3,
1859                                        Double_t cut4,Double_t cut5,
1860                                        Double_t cut6,Double_t cut7,
1861                                        Double_t cut8,Double_t cut9,
1862                                        Double_t cut10,Double_t cut11,
1863                                        Double_t cut12,Double_t cut13)
1864 {
1865   // Set the cuts for Ds->KKpi selection
1866   fDsCuts[0] = cut0;
1867   fDsCuts[1] = cut1;
1868   fDsCuts[2] = cut2;
1869   fDsCuts[3] = cut3;
1870   fDsCuts[4] = cut4;
1871   fDsCuts[5] = cut5;
1872   fDsCuts[6] = cut6;
1873   fDsCuts[7] = cut7;
1874   fDsCuts[8] = cut8;
1875   fDsCuts[9] = cut9;
1876   fDsCuts[10] = cut10;
1877   fDsCuts[11] = cut11;
1878   fDsCuts[12] = cut12;
1879   fDsCuts[13] = cut13;
1880
1881   return;
1882 }
1883 //-----------------------------------------------------------------------------
1884 void AliAnalysisVertexingHF::SetDsCuts(const Double_t cuts[13])
1885 {
1886   // Set the cuts for Ds->KKpi selection
1887
1888   for(Int_t i=0; i<14; i++) fDsCuts[i] = cuts[i];
1889
1890   return;
1891 }
1892 //-----------------------------------------------------------------------------
1893 void AliAnalysisVertexingHF::SetLcCuts(Double_t cut0,Double_t cut1,
1894                                    Double_t cut2,Double_t cut3,Double_t cut4,
1895                                    Double_t cut5,Double_t cut6,
1896                                    Double_t cut7,Double_t cut8,
1897                                    Double_t cut9,Double_t cut10,Double_t cut11)
1898 {
1899   // Set the cuts for Lc->pKpi selection
1900   fLcCuts[0] = cut0;
1901   fLcCuts[1] = cut1;
1902   fLcCuts[2] = cut2;
1903   fLcCuts[3] = cut3;
1904   fLcCuts[4] = cut4;
1905   fLcCuts[5] = cut5;
1906   fLcCuts[6] = cut6;
1907   fLcCuts[7] = cut7;
1908   fLcCuts[8] = cut8;
1909   fLcCuts[9] = cut9;
1910   fLcCuts[10] = cut10;
1911   fLcCuts[11] = cut11;
1912
1913   return;
1914 }
1915 //-----------------------------------------------------------------------------
1916 void AliAnalysisVertexingHF::SetLcCuts(const Double_t cuts[12])
1917 {
1918   // Set the cuts for Lc->pKpi selection
1919
1920   for(Int_t i=0; i<12; i++) fLcCuts[i] = cuts[i];
1921
1922   return;
1923 }
1924 //-----------------------------------------------------------------------------
1925 void AliAnalysisVertexingHF::SetD0to4ProngsCuts(Double_t cut0,Double_t cut1,
1926                                    Double_t cut2,Double_t cut3,Double_t cut4,
1927                                    Double_t cut5,Double_t cut6,
1928                                    Double_t cut7,Double_t cut8)
1929 {
1930   // Set the cuts for D0->Kpipipi selection
1931
1932   fD0to4ProngsCuts[0] = cut0;
1933   fD0to4ProngsCuts[1] = cut1;
1934   fD0to4ProngsCuts[2] = cut2;
1935   fD0to4ProngsCuts[3] = cut3;
1936   fD0to4ProngsCuts[4] = cut4;
1937   fD0to4ProngsCuts[5] = cut5;
1938   fD0to4ProngsCuts[6] = cut6;
1939   fD0to4ProngsCuts[7] = cut7;
1940   fD0to4ProngsCuts[8] = cut8;
1941
1942   return;
1943 }
1944 //-----------------------------------------------------------------------------
1945 void AliAnalysisVertexingHF::SetD0to4ProngsCuts(const Double_t cuts[9])
1946 {
1947   // Set the cuts for D0->Kpipipi selection
1948
1949   for(Int_t i=0; i<9; i++) fD0to4ProngsCuts[i] = cuts[i];
1950
1951   return;
1952 }
1953 //-----------------------------------------------------------------------------
1954 Bool_t AliAnalysisVertexingHF::SingleTrkCuts(AliESDtrack *trk,
1955                                              Bool_t &okDisplaced,Bool_t &okSoftPi) const
1956 {
1957   // Check if track passes some kinematical cuts
1958
1959   // this is needed to store the impact parameters
1960   trk->RelateToVertex(fV1,fBzkG,kVeryBig);
1961
1962   UInt_t selectInfo;
1963   //
1964   // Track selection, displaced tracks
1965   selectInfo = 0;
1966   if(fTrackFilter) {
1967     selectInfo = fTrackFilter->IsSelected(trk);
1968   }
1969   if(selectInfo) okDisplaced=kTRUE;
1970   // Track selection, soft pions
1971   selectInfo = 0;
1972   if(fDstar && fTrackFilterSoftPi) {
1973     selectInfo = fTrackFilterSoftPi->IsSelected(trk);
1974   }
1975   if(selectInfo) okSoftPi=kTRUE;
1976
1977   if(okDisplaced || okSoftPi) return kTRUE;
1978
1979   return kFALSE;
1980 }
1981 //-----------------------------------------------------------------------------