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 = fCutsD0toKpi->GetDCACut();
 284   Double_t dcaMax = fD0toKpiCuts[1];
 285   if(dcaMax < fBtoJPSICuts[1]) dcaMax=fBtoJPSICuts[1];
 286   if(dcaMax < fDplusCuts[11])  dcaMax=fDplusCuts[11];
 287   if(dcaMax < fD0to4ProngsCuts[1])  dcaMax=fD0to4ProngsCuts[1];
 288   AliDebug(2,Form(" dca cut set to %f cm",dcaMax));
 289
 290
 291   // get Bz
 292   fBzkG = (Double_t)event->GetMagneticField();
 293
 294   trkEntries = (Int_t)event->GetNumberOfTracks();
 295   AliDebug(1,Form(" Number of tracks: %d",trkEntries));
 296
 297   if(trkEntries<2) {
 298     AliDebug(1,Form(" Not enough tracks: %d",trkEntries));
 299     return;
 300   }
 301
 302   // event selection
 303   //if(!fCutsD0toKpi->IsEventSelected(event)) return;
 304   const AliVVertex *primary = event->GetPrimaryVertex();
 305   if(!primary) {
 306     AliDebug(1," No primary vertex from tracks");
 307     return;
 308   }
 309
 310   TString primTitle=primary->GetTitle();
 311   if(!primTitle.Contains("VertexerTracks") ||
 312      primary->GetNContributors()<=0) {
 313     AliDebug(1," No primary vertex from tracks");
 314     return;
 315   }
 316
 317
 318   // call function that applies sigle-track selection,
 319   // for displaced tracks and soft pions (both charges) for D*,
 320   // and retrieves primary vertex
 321   TObjArray seleTrksArray(trkEntries);
 322   UChar_t  *seleFlags = new UChar_t[trkEntries]; // bit 0: displaced, bit 1: softpi
 323   Int_t     nSeleTrks=0;
 324   Int_t *evtNumber    = new Int_t[trkEntries];
 325   SelectTracksAndCopyVertex(event,seleTrksArray,nSeleTrks,seleFlags,evtNumber);
 326
 327   AliDebug(1,Form(" Selected tracks: %d",nSeleTrks));
 328
 329   TObjArray *twoTrackArray1    = new TObjArray(2);
 330   TObjArray *twoTrackArray2    = new TObjArray(2);
 331   TObjArray *twoTrackArrayCasc = new TObjArray(2);
 332   TObjArray *threeTrackArray   = new TObjArray(3);
 333   TObjArray *fourTrackArray    = new TObjArray(4);
 334
 335   Double_t dispersion;
 336   Bool_t isLikeSign2Prong=kFALSE,isLikeSign3Prong=kFALSE;
 337
 338   AliAODRecoDecayHF   *rd = 0;
 339   AliAODRecoCascadeHF *rc = 0;
 340
 341   // LOOP ON  POSITIVE  TRACKS
 342   for(iTrkP1=0; iTrkP1<nSeleTrks; iTrkP1++) {
 343
 344     if(iTrkP1%1==0) AliDebug(1,Form("  1st loop on pos: track number %d of %d",iTrkP1,nSeleTrks));
 345
 346     // get track from tracks array
 347     postrack1 = (AliESDtrack*)seleTrksArray.UncheckedAt(iTrkP1);
 348
 349     if(!TESTBIT(seleFlags[iTrkP1],kBitDispl)) continue;
 350
 351     if(postrack1->Charge()<0 && !fLikeSign) continue;
 352
 353     // LOOP ON  NEGATIVE  TRACKS
 354     for(iTrkN1=0; iTrkN1<nSeleTrks; iTrkN1++) {
 355
 356       if(iTrkN1%1==0) AliDebug(1,Form("    1st loop on neg: track number %d of %d",iTrkN1,nSeleTrks));
 357
 358       if(iTrkN1==iTrkP1) continue;
 359
 360       // get track from tracks array
 361       negtrack1 = (AliESDtrack*)seleTrksArray.UncheckedAt(iTrkN1);
 362
 363       if(negtrack1->Charge()>0 && !fLikeSign) continue;
 364
 365       if(!TESTBIT(seleFlags[iTrkN1],kBitDispl)) continue;
 366
 367       if(fMixEvent) {
 368         if(evtNumber[iTrkP1]==evtNumber[iTrkN1]) continue;
 369       }
 370
 371       if(postrack1->Charge()==negtrack1->Charge()) { // like-sign
 372         isLikeSign2Prong=kTRUE;
 373         if(!fLikeSign)    continue;
 374         if(iTrkN1<iTrkP1) continue; // this is needed to avoid double-counting of like-sign
 375       } else { // unlike-sign
 376         isLikeSign2Prong=kFALSE;
 377         if(postrack1->Charge()<0 || negtrack1->Charge()>0) continue;  // this is needed to avoid double-counting of unlike-sign
 378         if(fMixEvent) {
 379           if(evtNumber[iTrkP1]==evtNumber[iTrkN1]) continue;
 380         }
 381
 382       }
 383
 384       // back to primary vertex
 385       postrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 386       negtrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 387
 388       // DCA between the two tracks
 389       dcap1n1 = postrack1->GetDCA(negtrack1,fBzkG,xdummy,ydummy);
 390       if(dcap1n1>dcaMax) { negtrack1=0; continue; }
 391
 392       // Vertexing
 393       twoTrackArray1->AddAt(postrack1,0);
 394       twoTrackArray1->AddAt(negtrack1,1);
 395       AliAODVertex *vertexp1n1 = ReconstructSecondaryVertex(twoTrackArray1,dispersion);
 396       if(!vertexp1n1) {
 397         twoTrackArray1->Clear();
 398         negtrack1=0;
 399         continue;
 400       }
 401
 402       // 2 prong candidate
 403       if(fD0toKpi || fJPSItoEle || fDstar || fLikeSign) {
 404
 405         io2Prong = Make2Prong(twoTrackArray1,event,vertexp1n1,dcap1n1,okD0,okJPSI,okD0fromDstar);
 406
 407         if((fD0toKpi && okD0) || (fJPSItoEle && okJPSI) || (isLikeSign2Prong && (okD0 || okJPSI))) {
 408           // add the vertex and the decay to the AOD
 409           AliAODVertex *v2Prong = new(verticesHFRef[iVerticesHF++])AliAODVertex(*vertexp1n1);
 410           if(fInputAOD) AddDaughterRefs(v2Prong,event,twoTrackArray1);
 411           if(!isLikeSign2Prong) {
 412             if(okD0) {
 413               rd = new(aodD0toKpiRef[iD0toKpi++])AliAODRecoDecayHF2Prong(*io2Prong);
 414               rd->SetSecondaryVtx(v2Prong);
 415               v2Prong->SetParent(rd);
 416               if(fInputAOD) rd->SetPrimaryVtxRef((AliAODVertex*)event->GetPrimaryVertex());
 417             }
 418             if(okJPSI) {
 419               rd = new(aodJPSItoEleRef[iJPSItoEle++])AliAODRecoDecayHF2Prong(*io2Prong);
 420               rd->SetSecondaryVtx(v2Prong);
 421               if(!okD0) v2Prong->SetParent(rd); // it cannot have two mothers ...
 422               if(fInputAOD) rd->SetPrimaryVtxRef((AliAODVertex*)event->GetPrimaryVertex());
 423             }
 424           } else { // isLikeSign2Prong
 425             rd = new(aodLikeSign2ProngRef[iLikeSign2Prong++])AliAODRecoDecayHF2Prong(*io2Prong);
 426             rd->SetSecondaryVtx(v2Prong);
 427             v2Prong->SetParent(rd);
 428             if(fInputAOD) rd->SetPrimaryVtxRef((AliAODVertex*)event->GetPrimaryVertex());
 429           }
 430         }
 431         // D* candidates
 432         if(fDstar && okD0fromDstar && !isLikeSign2Prong) {
 433           // write references in io2Prong
 434           if(fInputAOD) {
 435             AddDaughterRefs(vertexp1n1,event,twoTrackArray1);
 436           } else {
 437             vertexp1n1->AddDaughter(postrack1);
 438             vertexp1n1->AddDaughter(negtrack1);
 439           }
 440           io2Prong->SetSecondaryVtx(vertexp1n1);
 441           //printf("--->  %d %d %d %d %d\n",vertexp1n1->GetNDaughters(),iTrkP1,iTrkN1,postrack1->Charge(),negtrack1->Charge());
 442           // create a track from the D0
 443           AliNeutralTrackParam *trackD0 = new AliNeutralTrackParam(io2Prong);
 444
 445           // LOOP ON TRACKS THAT PASSED THE SOFT PION CUTS
 446           for(iTrkSoftPi=0; iTrkSoftPi<nSeleTrks; iTrkSoftPi++) {
 447
 448             if(iTrkSoftPi==iTrkP1 || iTrkSoftPi==iTrkN1) continue;
 449
 450             if(!TESTBIT(seleFlags[iTrkSoftPi],kBitSoftPi)) continue;
 451
 452             if(fMixEvent) {
 453               if(evtNumber[iTrkP1]==evtNumber[iTrkSoftPi] ||
 454                  evtNumber[iTrkN1]==evtNumber[iTrkSoftPi] ||
 455                  evtNumber[iTrkP1]==evtNumber[iTrkN1]) continue;
 456             }
 457
 458             if(iTrkSoftPi%1==0) AliDebug(1,Form("    1st loop on pi_s: track number %d of %d",iTrkSoftPi,nSeleTrks));
 459
 460             trackD0->PropagateToDCA(fV1,fBzkG,kVeryBig);
 461             if(trackD0->GetSigmaY2()<0. || trackD0->GetSigmaZ2()<0.) continue; // this is insipired by the AliITStrackV2::Invariant() checks
 462
 463             // get track from tracks array
 464             trackPi = (AliESDtrack*)seleTrksArray.UncheckedAt(iTrkSoftPi);
 465             trackPi->PropagateToDCA(fV1,fBzkG,kVeryBig);
 466
 467             twoTrackArrayCasc->AddAt(trackPi,0);
 468             twoTrackArrayCasc->AddAt(trackD0,1);
 469
 470             AliAODVertex *vertexCasc = 0;
 471
 472             if(fFindVertexForDstar) {
 473               // DCA between the two tracks
 474               dcaCasc = trackPi->GetDCA(trackD0,fBzkG,xdummy,ydummy);
 475               // Vertexing
 476               vertexCasc = ReconstructSecondaryVertex(twoTrackArrayCasc,dispersion,kFALSE);
 477             } else {
 478               // assume Dstar decays at the primary vertex
 479               Double_t pos[3],cov[6],chi2perNDF;
 480               fV1->GetXYZ(pos);
 481               fV1->GetCovMatrix(cov);
 482               chi2perNDF = fV1->GetChi2toNDF();
 483               vertexCasc = new AliAODVertex(pos,cov,chi2perNDF,0x0,-1,AliAODVertex::kUndef,2);
 484               dcaCasc = 0.;
 485             }
 486             if(!vertexCasc) {
 487               twoTrackArrayCasc->Clear();
 488               trackPi=0;
 489               continue;
 490             }
 491
 492             ioCascade = MakeCascade(twoTrackArrayCasc,event,vertexCasc,io2Prong,dcaCasc,okDstar);
 493             if(okDstar) {
 494               // add the D0 to the AOD (if not already done)
 495               if(!okD0) {
 496                 AliAODVertex *v2Prong = new(verticesHFRef[iVerticesHF++])AliAODVertex(*vertexp1n1);
 497                 if(fInputAOD) AddDaughterRefs(v2Prong,event,twoTrackArray1);
 498                 rd = new(aodD0toKpiRef[iD0toKpi++])AliAODRecoDecayHF2Prong(*io2Prong);
 499                 rd->SetSecondaryVtx(v2Prong);
 500                 v2Prong->SetParent(rd);
 501                 if(fInputAOD) rd->SetPrimaryVtxRef((AliAODVertex*)event->GetPrimaryVertex());
 502                 okD0=kTRUE; // this is done to add it only once
 503               }
 504               // add the vertex and the cascade to the AOD
 505               AliAODVertex *vCasc = new(verticesHFRef[iVerticesHF++])AliAODVertex(*vertexCasc);
 506               if(fInputAOD) {
 507                 AddDaughterRefs(vCasc,event,twoTrackArrayCasc); // add the pion
 508               } else {
 509                 vCasc->AddDaughter(rd); // just to fill ref #0
 510               }
 511               vCasc->AddDaughter(rd); // add the D0 (in ref #1)
 512               rc = new(aodDstarRef[iDstar++])AliAODRecoCascadeHF(*ioCascade);
 513               rc->SetSecondaryVtx(vCasc);
 514               vCasc->SetParent(rc);
 515               if(fInputAOD) rc->SetPrimaryVtxRef((AliAODVertex*)event->GetPrimaryVertex());
 516             }
 517             twoTrackArrayCasc->Clear();
 518             trackPi=0;
 519             if(ioCascade) {delete ioCascade; ioCascade=NULL;}
 520             delete vertexCasc; vertexCasc=NULL;
 521           } // end loop on soft pi tracks
 522
 523           if(trackD0) {delete trackD0; trackD0=NULL;}
 524
 525         }
 526         if(io2Prong) {delete io2Prong; io2Prong=NULL;}
 527       }
 528
 529       twoTrackArray1->Clear();
 530       if( (!f3Prong && !f4Prong) ||
 531           (isLikeSign2Prong && !f3Prong) ) {
 532         negtrack1=0;
 533         delete vertexp1n1;
 534         continue;
 535       }
 536
 537
 538       // 2nd LOOP  ON  POSITIVE  TRACKS
 539       for(iTrkP2=iTrkP1+1; iTrkP2<nSeleTrks; iTrkP2++) {
 540
 541         if(iTrkP2==iTrkP1 || iTrkP2==iTrkN1) continue;
 542
 543         if(iTrkP2%1==0) AliDebug(1,Form("    2nd loop on pos: track number %d of %d",iTrkP2,nSeleTrks));
 544
 545         // get track from tracks array
 546         postrack2 = (AliESDtrack*)seleTrksArray.UncheckedAt(iTrkP2);
 547
 548         if(postrack2->Charge()<0) continue;
 549
 550         if(!TESTBIT(seleFlags[iTrkP2],kBitDispl)) continue;
 551
 552         if(fMixEvent) {
 553           if(evtNumber[iTrkP1]==evtNumber[iTrkP2] ||
 554              evtNumber[iTrkN1]==evtNumber[iTrkP2] ||
 555              evtNumber[iTrkP1]==evtNumber[iTrkN1]) continue;
 556         }
 557
 558         if(isLikeSign2Prong) { // like-sign pair -> have to build only like-sign triplet
 559           if(postrack1->Charge()>0) { // ok: like-sign triplet (+++)
 560             isLikeSign3Prong=kTRUE;
 561           } else { // not ok
 562             continue;
 563           }
 564         } else { // normal triplet (+-+)
 565           isLikeSign3Prong=kFALSE;
 566           if(fMixEvent) {
 567             if(evtNumber[iTrkP1]==evtNumber[iTrkP2] ||
 568                evtNumber[iTrkN1]==evtNumber[iTrkP2] ||
 569                evtNumber[iTrkP1]==evtNumber[iTrkN1]) continue;
 570           }
 571         }
 572
 573         // back to primary vertex
 574         postrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 575         postrack2->PropagateToDCA(fV1,fBzkG,kVeryBig);
 576         negtrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 577         //printf("********** %d %d %d\n",postrack1->GetID(),postrack2->GetID(),negtrack1->GetID());
 578
 579         dcap2n1 = postrack2->GetDCA(negtrack1,fBzkG,xdummy,ydummy);
 580         if(dcap2n1>dcaMax) { postrack2=0; continue; }
 581         dcap1p2 = postrack2->GetDCA(postrack1,fBzkG,xdummy,ydummy);
 582         if(dcap1p2>dcaMax) { postrack2=0; continue; }
 583
 584         // Vertexing
 585         twoTrackArray2->AddAt(postrack2,0);
 586         twoTrackArray2->AddAt(negtrack1,1);
 587         AliAODVertex *vertexp2n1 = ReconstructSecondaryVertex(twoTrackArray2,dispersion);
 588         if(!vertexp2n1) {
 589           twoTrackArray2->Clear();
 590           postrack2=0;
 591           continue;
 592         }
 593
 594         // 3 prong candidates
 595         if(f3Prong) {
 596           if(postrack2->Charge()>0) {
 597             threeTrackArray->AddAt(postrack1,0);
 598             threeTrackArray->AddAt(negtrack1,1);
 599             threeTrackArray->AddAt(postrack2,2);
 600           } else {
 601             threeTrackArray->AddAt(negtrack1,0);
 602             threeTrackArray->AddAt(postrack1,1);
 603             threeTrackArray->AddAt(postrack2,2);
 604           }
 605
 606           AliAODVertex* secVert3PrAOD = ReconstructSecondaryVertex(threeTrackArray,dispersion);
 607           io3Prong = Make3Prong(threeTrackArray,event,secVert3PrAOD,dispersion,vertexp1n1,vertexp2n1,dcap1n1,dcap2n1,dcap1p2,ok3Prong);
 608           if(ok3Prong) {
 609             AliAODVertex *v3Prong = new(verticesHFRef[iVerticesHF++])AliAODVertex(*secVert3PrAOD);
 610             if(fInputAOD) AddDaughterRefs(v3Prong,event,threeTrackArray);
 611             if(!isLikeSign3Prong) {
 612               rd = new(aodCharm3ProngRef[i3Prong++])AliAODRecoDecayHF3Prong(*io3Prong);
 613               rd->SetSecondaryVtx(v3Prong);
 614               v3Prong->SetParent(rd);
 615             } else { // isLikeSign3Prong
 616               rd = new(aodLikeSign3ProngRef[iLikeSign3Prong++])AliAODRecoDecayHF3Prong(*io3Prong);
 617               rd->SetSecondaryVtx(v3Prong);
 618               v3Prong->SetParent(rd);
 619               if(fInputAOD) rd->SetPrimaryVtxRef((AliAODVertex*)event->GetPrimaryVertex());
 620             }
 621           }
 622           if(io3Prong) {delete io3Prong; io3Prong=NULL;}
 623           if(secVert3PrAOD) {delete secVert3PrAOD; secVert3PrAOD=NULL;}
 624         }
 625
 626         // 4 prong candidates
 627         if(f4Prong
 628            // don't make 4 prong with like-sign pairs and triplets
 629            && !isLikeSign2Prong && !isLikeSign3Prong
 630            // track-to-track dca cuts already now
 631            && dcap1n1 < fD0to4ProngsCuts[1]
 632            && dcap2n1 < fD0to4ProngsCuts[1]) {
 633
 634           // back to primary vertex
 635           postrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 636           postrack2->PropagateToDCA(fV1,fBzkG,kVeryBig);
 637           negtrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 638           // Vertexing for these 3 (can be taken from above?)
 639           threeTrackArray->AddAt(postrack1,0);
 640           threeTrackArray->AddAt(negtrack1,1);
 641           threeTrackArray->AddAt(postrack2,2);
 642           AliAODVertex* vertexp1n1p2 = ReconstructSecondaryVertex(threeTrackArray,dispersion);
 643
 644           // 3rd LOOP  ON  NEGATIVE  TRACKS (for 4 prong)
 645           for(iTrkN2=iTrkN1+1; iTrkN2<nSeleTrks; iTrkN2++) {
 646
 647             if(iTrkN2==iTrkP1 || iTrkN2==iTrkP2 || iTrkN2==iTrkN1) continue;
 648
 649             if(iTrkN2%1==0) AliDebug(1,Form("    3rd loop on neg: track number %d of %d",iTrkN2,nSeleTrks));
 650
 651             // get track from tracks array
 652             negtrack2 = (AliESDtrack*)seleTrksArray.UncheckedAt(iTrkN2);
 653
 654             if(negtrack2->Charge()>0) continue;
 655
 656             if(!TESTBIT(seleFlags[iTrkN2],kBitDispl)) continue;
 657             if(fMixEvent){
 658               if(evtNumber[iTrkP1]==evtNumber[iTrkN2] ||
 659                  evtNumber[iTrkN1]==evtNumber[iTrkN2] ||
 660                  evtNumber[iTrkP2]==evtNumber[iTrkN2] ||
 661                  evtNumber[iTrkP1]==evtNumber[iTrkN1] ||
 662                  evtNumber[iTrkP1]==evtNumber[iTrkP2] ||
 663                  evtNumber[iTrkN1]==evtNumber[iTrkP2]) continue;
 664             }
 665
 666             // back to primary vertex
 667             postrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 668             postrack2->PropagateToDCA(fV1,fBzkG,kVeryBig);
 669             negtrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 670             negtrack2->PropagateToDCA(fV1,fBzkG,kVeryBig);
 671             dcap1n2 = postrack1->GetDCA(negtrack2,fBzkG,xdummy,ydummy);
 672             if(dcap1n2 > fD0to4ProngsCuts[1]) { negtrack2=0; continue; }
 673             dcap2n2 = postrack2->GetDCA(negtrack2,fBzkG,xdummy,ydummy);
 674             if(dcap2n2 > fD0to4ProngsCuts[1]) { negtrack2=0; continue; }
 675
 676             // Vertexing
 677             fourTrackArray->AddAt(postrack1,0);
 678             fourTrackArray->AddAt(negtrack1,1);
 679             fourTrackArray->AddAt(postrack2,2);
 680             fourTrackArray->AddAt(negtrack2,3);
 681
 682             AliAODVertex* secVert4PrAOD = ReconstructSecondaryVertex(fourTrackArray,dispersion);
 683             io4Prong = Make4Prong(fourTrackArray,event,secVert4PrAOD,vertexp1n1,vertexp1n1p2,dcap1n1,dcap1n2,dcap2n1,dcap2n2,ok4Prong);
 684             if(ok4Prong) {
 685               AliAODVertex *v4Prong = new(verticesHFRef[iVerticesHF++])AliAODVertex(*secVert4PrAOD);
 686               if(fInputAOD) AddDaughterRefs(v4Prong,event,fourTrackArray);
 687               rd = new(aodCharm4ProngRef[i4Prong++])AliAODRecoDecayHF4Prong(*io4Prong);
 688               rd->SetSecondaryVtx(v4Prong);
 689               v4Prong->SetParent(rd);
 690               if(fInputAOD) rd->SetPrimaryVtxRef((AliAODVertex*)event->GetPrimaryVertex());
 691             }
 692
 693             if(io4Prong) {delete io4Prong; io4Prong=NULL;}
 694             if(secVert4PrAOD) {delete secVert4PrAOD; secVert4PrAOD=NULL;}
 695             fourTrackArray->Clear();
 696             negtrack2 = 0;
 697
 698           } // end loop on negative tracks
 699
 700           threeTrackArray->Clear();
 701           delete vertexp1n1p2;
 702
 703         }
 704
 705         postrack2 = 0;
 706         delete vertexp2n1;
 707
 708       } // end 2nd loop on positive tracks
 709
 710       twoTrackArray2->Clear();
 711
 712       // 2nd LOOP  ON  NEGATIVE  TRACKS (for 3 prong -+-)
 713       for(iTrkN2=iTrkN1+1; iTrkN2<nSeleTrks; iTrkN2++) {
 714
 715         if(iTrkN2==iTrkP1 || iTrkN2==iTrkP2 || iTrkN2==iTrkN1) continue;
 716
 717         if(iTrkN2%1==0) AliDebug(1,Form("    2nd loop on neg: track number %d of %d",iTrkN2,nSeleTrks));
 718
 719         // get track from tracks array
 720         negtrack2 = (AliESDtrack*)seleTrksArray.UncheckedAt(iTrkN2);
 721
 722         if(negtrack2->Charge()>0) continue;
 723
 724         if(!TESTBIT(seleFlags[iTrkN2],kBitDispl)) continue;
 725
 726         if(fMixEvent) {
 727           if(evtNumber[iTrkP1]==evtNumber[iTrkN2] ||
 728              evtNumber[iTrkN1]==evtNumber[iTrkN2] ||
 729              evtNumber[iTrkP1]==evtNumber[iTrkN1]) continue;
 730         }
 731
 732         if(isLikeSign2Prong) { // like-sign pair -> have to build only like-sign triplet
 733           if(postrack1->Charge()<0) { // ok: like-sign triplet (---)
 734             isLikeSign3Prong=kTRUE;
 735           } else { // not ok
 736             continue;
 737           }
 738         } else { // normal triplet (-+-)
 739           isLikeSign3Prong=kFALSE;
 740         }
 741
 742         // back to primary vertex
 743         postrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 744         negtrack1->PropagateToDCA(fV1,fBzkG,kVeryBig);
 745         negtrack2->PropagateToDCA(fV1,fBzkG,kVeryBig);
 746         //printf("********** %d %d %d\n",postrack1->GetID(),negtrack1->GetID(),negtrack2->GetID());
 747
 748         dcap1n2 = postrack1->GetDCA(negtrack2,fBzkG,xdummy,ydummy);
 749         if(dcap1n2>dcaMax) { negtrack2=0; continue; }
 750         dcan1n2 = negtrack1->GetDCA(negtrack2,fBzkG,xdummy,ydummy);
 751         if(dcan1n2>dcaMax) { negtrack2=0; continue; }
 752
 753         // Vertexing
 754         twoTrackArray2->AddAt(postrack1,0);
 755         twoTrackArray2->AddAt(negtrack2,1);
 756
 757         AliAODVertex *vertexp1n2 = ReconstructSecondaryVertex(twoTrackArray2,dispersion);
 758         if(!vertexp1n2) {
 759           twoTrackArray2->Clear();
 760           negtrack2=0;
 761           continue;
 762         }
 763
 764         if(f3Prong) {
 765           threeTrackArray->AddAt(negtrack1,0);
 766           threeTrackArray->AddAt(postrack1,1);
 767           threeTrackArray->AddAt(negtrack2,2);
 768           AliAODVertex* secVert3PrAOD = ReconstructSecondaryVertex(threeTrackArray,dispersion);
 769           io3Prong = Make3Prong(threeTrackArray,event,secVert3PrAOD,dispersion,vertexp1n1,vertexp1n2,dcap1n1,dcap1n2,dcan1n2,ok3Prong);
 770           if(ok3Prong) {
 771             AliAODVertex *v3Prong = new(verticesHFRef[iVerticesHF++])AliAODVertex(*secVert3PrAOD);
 772             if(fInputAOD) AddDaughterRefs(v3Prong,event,threeTrackArray);
 773             if(!isLikeSign3Prong) {
 774               rd = new(aodCharm3ProngRef[i3Prong++])AliAODRecoDecayHF3Prong(*io3Prong);
 775               rd->SetSecondaryVtx(v3Prong);
 776               v3Prong->SetParent(rd);
 777             } else { // isLikeSign3Prong
 778               rd = new(aodLikeSign3ProngRef[iLikeSign3Prong++])AliAODRecoDecayHF3Prong(*io3Prong);
 779               rd->SetSecondaryVtx(v3Prong);
 780               v3Prong->SetParent(rd);
 781               if(fInputAOD) rd->SetPrimaryVtxRef((AliAODVertex*)event->GetPrimaryVertex());
 782             }
 783           }
 784           if(io3Prong) {delete io3Prong; io3Prong=NULL;}
 785           if(secVert3PrAOD) {delete secVert3PrAOD; secVert3PrAOD=NULL;}
 786         }
 787
 788         negtrack2 = 0;
 789         delete vertexp1n2;
 790
 791       } // end 2nd loop on negative tracks
 792
 793       twoTrackArray2->Clear();
 794
 795       negtrack1 = 0;
 796       delete vertexp1n1;
 797     } // end 1st loop on negative tracks
 798
 799     postrack1 = 0;
 800   }  // end 1st loop on positive tracks
 801
 802
 803   AliDebug(1,Form(" Total HF vertices in event = %d;",
 804                   (Int_t)aodVerticesHFTClArr->GetEntriesFast()));
 805   if(fD0toKpi) {
 806     AliDebug(1,Form(" D0->Kpi in event = %d;",
 807                     (Int_t)aodD0toKpiTClArr->GetEntriesFast()));
 808   }
 809   if(fJPSItoEle) {
 810     AliDebug(1,Form(" JPSI->ee in event = %d;",
 811                     (Int_t)aodJPSItoEleTClArr->GetEntriesFast()));
 812   }
 813   if(f3Prong) {
 814     AliDebug(1,Form(" Charm->3Prong in event = %d;",
 815                     (Int_t)aodCharm3ProngTClArr->GetEntriesFast()));
 816   }
 817   if(f4Prong) {
 818     AliDebug(1,Form(" Charm->4Prong in event = %d;\n",
 819                     (Int_t)aodCharm4ProngTClArr->GetEntriesFast()));
 820   }
 821   if(fDstar) {
 822     AliDebug(1,Form(" D*->D0pi in event = %d;\n",
 823                     (Int_t)aodDstarTClArr->GetEntriesFast()));
 824   }
 825   if(fLikeSign) {
 826     AliDebug(1,Form(" Like-sign 2Prong in event = %d;\n",
 827                     (Int_t)aodLikeSign2ProngTClArr->GetEntriesFast()));
 828   }
 829   if(fLikeSign && f3Prong) {
 830     AliDebug(1,Form(" Like-sign 3Prong in event = %d;\n",
 831                     (Int_t)aodLikeSign3ProngTClArr->GetEntriesFast()));
 832   }
 833
 834
 835   twoTrackArray1->Delete();  delete twoTrackArray1;
 836   twoTrackArray2->Delete();  delete twoTrackArray2;
 837   twoTrackArrayCasc->Delete();  delete twoTrackArrayCasc;
 838   threeTrackArray->Clear();
 839   threeTrackArray->Delete(); delete threeTrackArray;
 840   fourTrackArray->Delete();  delete fourTrackArray;
 841   delete [] seleFlags; seleFlags=NULL;
 842   if(evtNumber) {delete [] evtNumber; evtNumber=NULL;}
 843
 844   if(fInputAOD) {
 845     seleTrksArray.Delete();
 846     if(fAODMap) { delete fAODMap; fAODMap=NULL; }
 847   }
 848
 849   return;
 850 }
 851 //----------------------------------------------------------------------------
 852 void AliAnalysisVertexingHF::AddDaughterRefs(AliAODVertex *v,
 853                                              const AliVEvent *event,
 854                                              const TObjArray *trkArray) const
 855 {
 856   // Add the AOD tracks as daughters of the vertex (TRef)
 857
 858   Int_t nTrks = trkArray->GetEntriesFast();
 859
 860   AliExternalTrackParam *track = 0;
 861   AliAODTrack *aodTrack = 0;
 862   Int_t id;
 863
 864   for(Int_t i=0; i<nTrks; i++) {
 865     track = (AliExternalTrackParam*)trkArray->UncheckedAt(i);
 866     id = (Int_t)track->GetID();
 867     //printf("---> %d\n",id);
 868     if(id<0) continue; // this track is a AliAODRecoDecay
 869     aodTrack = (AliAODTrack*)event->GetTrack(fAODMap[id]);
 870     v->AddDaughter(aodTrack);
 871   }
 872
 873   return;
 874 }
 875 //----------------------------------------------------------------------------
 876 AliAODRecoCascadeHF* AliAnalysisVertexingHF::MakeCascade(
 877                                    TObjArray *twoTrackArray,AliVEvent *event,
 878                                    AliAODVertex *secVert,
 879                                    AliAODRecoDecayHF2Prong *rd2Prong,
 880                                    Double_t dca,
 881                                    Bool_t &okDstar) const
 882 {
 883   // Make the cascade as a 2Prong decay and check if it passes Dstar
 884   // reconstruction cuts
 885
 886   okDstar = kFALSE;
 887
 888   Bool_t dummy1,dummy2,dummy3;
 889
 890   // We use Make2Prong to construct the AliAODRecoCascadeHF
 891   // (which inherits from AliAODRecoDecayHF2Prong)
 892   AliAODRecoCascadeHF *theCascade =
 893     (AliAODRecoCascadeHF*)Make2Prong(twoTrackArray,event,secVert,dca,
 894                                      dummy1,dummy2,dummy3);
 895   if(!theCascade) return 0x0;
 896
 897   // charge
 898   AliESDtrack *trackPi = (AliESDtrack*)twoTrackArray->UncheckedAt(0);
 899   theCascade->SetCharge(trackPi->Charge());
 900
 901   //--- selection cuts
 902   //
 903   AliAODRecoCascadeHF *tmpCascade = new AliAODRecoCascadeHF(*theCascade);
 904   tmpCascade->GetSecondaryVtx()->AddDaughter(trackPi);
 905   tmpCascade->GetSecondaryVtx()->AddDaughter(rd2Prong);
 906   AliAODVertex *primVertexAOD=0;
 907   if(!fRecoPrimVtxSkippingTrks && !fRmTrksFromPrimVtx) {
 908     // take event primary vertex
 909     primVertexAOD = PrimaryVertex();
 910     tmpCascade->SetOwnPrimaryVtx(primVertexAOD);
 911     rd2Prong->SetOwnPrimaryVtx(primVertexAOD);
 912   }
 913   // select D*->D0pi
 914   if(fDstar) {
 915     Bool_t testD0=kTRUE;
 916     okDstar = tmpCascade->SelectDstar(fDstarCuts,fD0fromDstarCuts,testD0);
 917   }
 918   tmpCascade->GetSecondaryVtx()->RemoveDaughters();
 919   tmpCascade->UnsetOwnPrimaryVtx();
 920   delete tmpCascade; tmpCascade=NULL;
 921   if(!fRecoPrimVtxSkippingTrks && !fRmTrksFromPrimVtx && !fMixEvent) {
 922     rd2Prong->UnsetOwnPrimaryVtx();
 923   }
 924   if(primVertexAOD) {delete primVertexAOD; primVertexAOD=NULL;}
 925   //---
 926
 927   return theCascade;
 928 }
 929 //-----------------------------------------------------------------------------
 930 AliAODRecoDecayHF2Prong *AliAnalysisVertexingHF::Make2Prong(
 931                                    TObjArray *twoTrackArray,AliVEvent *event,
 932                                    AliAODVertex *secVert,Double_t dca,
 933                                    Bool_t &okD0,Bool_t &okJPSI,
 934                                    Bool_t &okD0fromDstar) const
 935 {
 936   // Make 2Prong candidates and check if they pass D0toKpi or BtoJPSI
 937   // reconstruction cuts
 938   // G.E.Bruno (J/psi), A.Dainese (D0->Kpi)
 939
 940   okD0=kFALSE; okJPSI=kFALSE; okD0fromDstar=kFALSE;
 941
 942   Double_t px[2],py[2],pz[2],d0[2],d0err[2];
 943   AliESDtrack *postrack = (AliESDtrack*)twoTrackArray->UncheckedAt(0);
 944   AliESDtrack *negtrack = (AliESDtrack*)twoTrackArray->UncheckedAt(1);
 945
 946   // propagate tracks to secondary vertex, to compute inv. mass
 947   postrack->PropagateToDCA(secVert,fBzkG,kVeryBig);
 948   negtrack->PropagateToDCA(secVert,fBzkG,kVeryBig);
 949
 950   Double_t momentum[3];
 951   postrack->GetPxPyPz(momentum);
 952   px[0] = momentum[0]; py[0] = momentum[1]; pz[0] = momentum[2];
 953   negtrack->GetPxPyPz(momentum);
 954   px[1] = momentum[0]; py[1] = momentum[1]; pz[1] = momentum[2];
 955
 956
 957   // invariant mass cut (try to improve coding here..)
 958   Bool_t okMassCut=kFALSE;
 959   if(!okMassCut && fD0toKpi)   if(SelectInvMass(0,2,px,py,pz)) okMassCut=kTRUE;
 960   if(!okMassCut && fJPSItoEle) if(SelectInvMass(1,2,px,py,pz)) okMassCut=kTRUE;
 961   if(!okMassCut && fDstar)     if(SelectInvMass(3,2,px,py,pz)) okMassCut=kTRUE;
 962   if(!okMassCut) {
 963     AliDebug(2," candidate didn't pass mass cut");
 964     return 0x0;
 965   }
 966   // primary vertex to be used by this candidate
 967   AliAODVertex *primVertexAOD  = PrimaryVertex(twoTrackArray,event);
 968   if(!primVertexAOD) return 0x0;
 969
 970
 971   Double_t d0z0[2],covd0z0[3];
 972   postrack->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
 973   d0[0] = d0z0[0];
 974   d0err[0] = TMath::Sqrt(covd0z0[0]);
 975   negtrack->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
 976   d0[1] = d0z0[0];
 977   d0err[1] = TMath::Sqrt(covd0z0[0]);
 978
 979   // create the object AliAODRecoDecayHF2Prong
 980   AliAODRecoDecayHF2Prong *the2Prong = new AliAODRecoDecayHF2Prong(secVert,px,py,pz,d0,d0err,dca);
 981   the2Prong->SetOwnPrimaryVtx(primVertexAOD);
 982   UShort_t id[2]={(UShort_t)postrack->GetID(),(UShort_t)negtrack->GetID()};
 983   the2Prong->SetProngIDs(2,id);
 984   delete primVertexAOD; primVertexAOD=NULL;
 985
 986
 987   if(postrack->Charge()!=0 && negtrack->Charge()!=0) { // don't apply these cuts if it's a Dstar
 988     // select D0->Kpi
 989     Int_t checkD0,checkD0bar;
 990     if(fD0toKpi)   okD0 = the2Prong->SelectD0(fD0toKpiCuts,checkD0,checkD0bar);
 991     //if(fD0toKpi)   okD0 = (Bool_t)fCutsD0toKpi->IsSelected(the2Prong,AliRDHFCuts::kCandidate);
 992     //if(fDebug && fD0toKpi) printf("   %d\n",(Int_t)okD0);
 993     // select J/psi from B
 994     Int_t checkJPSI;
 995     if(fJPSItoEle) okJPSI        = the2Prong->SelectBtoJPSI(fBtoJPSICuts,checkJPSI);
 996     //if(fDebug && fJPSItoEle) printf("   %d\n",(Int_t)okJPSI);
 997     // select D0->Kpi from Dstar
 998     if(fDstar)     okD0fromDstar = the2Prong->SelectD0(fD0fromDstarCuts,checkD0,checkD0bar);
 999     //if(fDebug && fDstar) printf("   %d\n",(Int_t)okD0fromDstar);
1000   }
1001
1002
1003   // remove the primary vertex (was used only for selection)
1004   if(!fRecoPrimVtxSkippingTrks && !fRmTrksFromPrimVtx && !fMixEvent) {
1005     the2Prong->UnsetOwnPrimaryVtx();
1006   }
1007
1008   // get PID info from ESD
1009   Double_t esdpid0[5]={0.,0.,0.,0.,0.};
1010   if(postrack->GetStatus()&AliESDtrack::kESDpid) postrack->GetESDpid(esdpid0);
1011   Double_t esdpid1[5]={0.,0.,0.,0.,0.};
1012   if(negtrack->GetStatus()&AliESDtrack::kESDpid) negtrack->GetESDpid(esdpid1);
1013   Double_t esdpid[10];
1014   for(Int_t i=0;i<5;i++) {
1015     esdpid[i]   = esdpid0[i];
1016     esdpid[5+i] = esdpid1[i];
1017   }
1018   the2Prong->SetPID(2,esdpid);
1019
1020   return the2Prong;
1021 }
1022 //----------------------------------------------------------------------------
1023 AliAODRecoDecayHF3Prong* AliAnalysisVertexingHF::Make3Prong(
1024                              TObjArray *threeTrackArray,AliVEvent *event,
1025                              AliAODVertex *secVert,Double_t dispersion,
1026                              const AliAODVertex *vertexp1n1,const AliAODVertex *vertexp2n1,
1027                              Double_t dcap1n1,Double_t dcap2n1,Double_t dcap1p2,
1028                              Bool_t &ok3Prong) const
1029 {
1030   // Make 3Prong candidates and check if they pass Dplus or Ds or Lambdac
1031   // reconstruction cuts
1032   // E.Bruna, F.Prino
1033
1034
1035   ok3Prong=kFALSE;
1036   if(!secVert || !vertexp1n1 || !vertexp2n1) return 0x0;
1037
1038   Double_t px[3],py[3],pz[3],d0[3],d0err[3];
1039   Double_t momentum[3];
1040
1041
1042   AliESDtrack *postrack1 = (AliESDtrack*)threeTrackArray->UncheckedAt(0);
1043   AliESDtrack *negtrack  = (AliESDtrack*)threeTrackArray->UncheckedAt(1);
1044   AliESDtrack *postrack2 = (AliESDtrack*)threeTrackArray->UncheckedAt(2);
1045
1046   postrack1->PropagateToDCA(secVert,fBzkG,kVeryBig);
1047   negtrack->PropagateToDCA(secVert,fBzkG,kVeryBig);
1048   postrack2->PropagateToDCA(secVert,fBzkG,kVeryBig);
1049   postrack1->GetPxPyPz(momentum);
1050   px[0] = momentum[0]; py[0] = momentum[1]; pz[0] = momentum[2];
1051   negtrack->GetPxPyPz(momentum);
1052   px[1] = momentum[0]; py[1] = momentum[1]; pz[1] = momentum[2];
1053   postrack2->GetPxPyPz(momentum);
1054   px[2] = momentum[0]; py[2] = momentum[1]; pz[2] = momentum[2];
1055
1056   // invariant mass cut for D+, Ds, Lc
1057   Bool_t okMassCut=kFALSE;
1058   if(!okMassCut && f3Prong) if(SelectInvMass(2,3,px,py,pz)) okMassCut=kTRUE;
1059   if(!okMassCut) {
1060     AliDebug(2," candidate didn't pass mass cut");
1061     return 0x0;
1062   }
1063
1064   // primary vertex to be used by this candidate
1065   AliAODVertex *primVertexAOD  = PrimaryVertex(threeTrackArray,event);
1066   if(!primVertexAOD) return 0x0;
1067
1068   Double_t d0z0[2],covd0z0[3];
1069   postrack1->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
1070   d0[0]=d0z0[0];
1071   d0err[0] = TMath::Sqrt(covd0z0[0]);
1072   negtrack->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
1073   d0[1]=d0z0[0];
1074   d0err[1] = TMath::Sqrt(covd0z0[0]);
1075   postrack2->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
1076   d0[2]=d0z0[0];
1077   d0err[2] = TMath::Sqrt(covd0z0[0]);
1078
1079
1080   // create the object AliAODRecoDecayHF3Prong
1081   Double_t pos[3]; primVertexAOD->GetXYZ(pos);
1082   Double_t dca[3]={dcap1n1,dcap2n1,dcap1p2};
1083   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]));
1084   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]));
1085   Short_t charge=(Short_t)(postrack1->Charge()*postrack2->Charge()*negtrack->Charge());
1086   AliAODRecoDecayHF3Prong *the3Prong = new AliAODRecoDecayHF3Prong(secVert,px,py,pz,d0,d0err,dca,dispersion,dist12,dist23,charge);
1087   the3Prong->SetOwnPrimaryVtx(primVertexAOD);
1088   UShort_t id[3]={(UShort_t)postrack1->GetID(),(UShort_t)negtrack->GetID(),(UShort_t)postrack2->GetID()};
1089   the3Prong->SetProngIDs(3,id);
1090
1091   delete primVertexAOD; primVertexAOD=NULL;
1092
1093   // select D+->Kpipi, Ds->KKpi, Lc->pKpi
1094   if(f3Prong) {
1095     ok3Prong = kFALSE;
1096     Int_t ok1,ok2;
1097     Int_t dum1,dum2;
1098     if(the3Prong->SelectDplus(fDplusCuts))   ok3Prong = kTRUE;
1099     if(the3Prong->SelectDs(fDsCuts,ok1,ok2,dum1,dum2)) ok3Prong = kTRUE;
1100     if(the3Prong->SelectLc(fLcCuts,ok1,ok2)) ok3Prong = kTRUE;
1101   }
1102   //if(fDebug) printf("ok3Prong: %d\n",(Int_t)ok3Prong);
1103
1104   if(!fRecoPrimVtxSkippingTrks && !fRmTrksFromPrimVtx && !fMixEvent) {
1105     the3Prong->UnsetOwnPrimaryVtx();
1106   }
1107
1108   // get PID info from ESD
1109   Double_t esdpid0[5]={0.,0.,0.,0.,0.};
1110   if(postrack1->GetStatus()&AliESDtrack::kESDpid) postrack1->GetESDpid(esdpid0);
1111   Double_t esdpid1[5]={0.,0.,0.,0.,0.};
1112   if(negtrack->GetStatus()&AliESDtrack::kESDpid) negtrack->GetESDpid(esdpid1);
1113   Double_t esdpid2[5]={0.,0.,0.,0.,0.};
1114   if(postrack2->GetStatus()&AliESDtrack::kESDpid) postrack2->GetESDpid(esdpid2);
1115
1116   Double_t esdpid[15];
1117   for(Int_t i=0;i<5;i++) {
1118     esdpid[i]    = esdpid0[i];
1119     esdpid[5+i]  = esdpid1[i];
1120     esdpid[10+i] = esdpid2[i];
1121   }
1122   the3Prong->SetPID(3,esdpid);
1123
1124   return the3Prong;
1125 }
1126 //----------------------------------------------------------------------------
1127 AliAODRecoDecayHF4Prong* AliAnalysisVertexingHF::Make4Prong(
1128                              TObjArray *fourTrackArray,AliVEvent *event,
1129                              AliAODVertex *secVert,
1130                              const AliAODVertex *vertexp1n1,
1131                              const AliAODVertex *vertexp1n1p2,
1132                              Double_t dcap1n1,Double_t dcap1n2,
1133                              Double_t dcap2n1,Double_t dcap2n2,
1134                              Bool_t &ok4Prong) const
1135 {
1136   // Make 4Prong candidates and check if they pass D0toKpipipi
1137   // reconstruction cuts
1138   // G.E.Bruno, R.Romita
1139
1140   ok4Prong=kFALSE;
1141   if(!secVert || !vertexp1n1 || !vertexp1n1p2) return 0x0;
1142
1143   Double_t px[4],py[4],pz[4],d0[4],d0err[4];//d0z[3];
1144
1145   AliESDtrack *postrack1 = (AliESDtrack*)fourTrackArray->UncheckedAt(0);
1146   AliESDtrack *negtrack1 = (AliESDtrack*)fourTrackArray->UncheckedAt(1);
1147   AliESDtrack *postrack2 = (AliESDtrack*)fourTrackArray->UncheckedAt(2);
1148   AliESDtrack *negtrack2 = (AliESDtrack*)fourTrackArray->UncheckedAt(3);
1149
1150   postrack1->PropagateToDCA(secVert,fBzkG,kVeryBig);
1151   negtrack1->PropagateToDCA(secVert,fBzkG,kVeryBig);
1152   postrack2->PropagateToDCA(secVert,fBzkG,kVeryBig);
1153   negtrack2->PropagateToDCA(secVert,fBzkG,kVeryBig);
1154
1155   Double_t momentum[3];
1156   postrack1->GetPxPyPz(momentum);
1157   px[0] = momentum[0]; py[0] = momentum[1]; pz[0] = momentum[2];
1158   negtrack1->GetPxPyPz(momentum);
1159   px[1] = momentum[0]; py[1] = momentum[1]; pz[1] = momentum[2];
1160   postrack2->GetPxPyPz(momentum);
1161   px[2] = momentum[0]; py[2] = momentum[1]; pz[2] = momentum[2];
1162   negtrack2->GetPxPyPz(momentum);
1163   px[3] = momentum[0]; py[3] = momentum[1]; pz[3] = momentum[2];
1164
1165   // invariant mass cut for rho or D0 (try to improve coding here..)
1166   Bool_t okMassCut=kFALSE;
1167   if(!okMassCut && TMath::Abs(fD0to4ProngsCuts[8])<1.e-13){      //no PID, to be implemented with PID
1168     if(SelectInvMass(4,4,px,py,pz)) okMassCut=kTRUE;
1169   }
1170   if(!okMassCut) {
1171     //if(fDebug) printf(" candidate didn't pass mass cut\n");
1172     //printf(" candidate didn't pass mass cut\n");
1173     return 0x0;
1174   }
1175
1176   // primary vertex to be used by this candidate
1177   AliAODVertex *primVertexAOD  = PrimaryVertex(fourTrackArray,event);
1178   if(!primVertexAOD) return 0x0;
1179
1180   Double_t d0z0[2],covd0z0[3];
1181   postrack1->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
1182   d0[0]=d0z0[0];
1183   d0err[0] = TMath::Sqrt(covd0z0[0]);
1184   negtrack1->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
1185   d0[1]=d0z0[0];
1186   d0err[1] = TMath::Sqrt(covd0z0[0]);
1187   postrack2->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
1188   d0[2]=d0z0[0];
1189   d0err[2] = TMath::Sqrt(covd0z0[0]);
1190   negtrack2->PropagateToDCA(primVertexAOD,fBzkG,kVeryBig,d0z0,covd0z0);
1191   d0[3]=d0z0[0];
1192   d0err[3] = TMath::Sqrt(covd0z0[0]);
1193
1194
1195   // create the object AliAODRecoDecayHF4Prong
1196   Double_t pos[3]; primVertexAOD->GetXYZ(pos);
1197   Double_t dca[6]={dcap1n1,0.,dcap1n2,dcap2n1,0.,dcap2n2};
1198   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]));
1199   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]));
1200   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]));
1201   Short_t charge=0;
1202   AliAODRecoDecayHF4Prong *the4Prong = new AliAODRecoDecayHF4Prong(secVert,px,py,pz,d0,d0err,dca,dist12,dist3,dist4,charge);
1203   the4Prong->SetOwnPrimaryVtx(primVertexAOD);
1204   UShort_t id[4]={(UShort_t)postrack1->GetID(),(UShort_t)negtrack1->GetID(),(UShort_t)postrack2->GetID(),(UShort_t)negtrack2->GetID()};
1205   the4Prong->SetProngIDs(4,id);
1206
1207   delete primVertexAOD; primVertexAOD=NULL;
1208
1209   Int_t checkD0,checkD0bar;
1210   ok4Prong=the4Prong->SelectD0(fD0to4ProngsCuts,checkD0,checkD0bar);
1211
1212   if(!fRecoPrimVtxSkippingTrks && !fRmTrksFromPrimVtx && !fMixEvent) {
1213     the4Prong->UnsetOwnPrimaryVtx();
1214   }
1215
1216
1217   // get PID info from ESD
1218   Double_t esdpid0[5]={0.,0.,0.,0.,0.};
1219   if(postrack1->GetStatus()&AliESDtrack::kESDpid) postrack1->GetESDpid(esdpid0);
1220   Double_t esdpid1[5]={0.,0.,0.,0.,0.};
1221   if(negtrack1->GetStatus()&AliESDtrack::kESDpid) negtrack1->GetESDpid(esdpid1);
1222   Double_t esdpid2[5]={0.,0.,0.,0.,0.};
1223   if(postrack2->GetStatus()&AliESDtrack::kESDpid) postrack2->GetESDpid(esdpid2);
1224   Double_t esdpid3[5]={0.,0.,0.,0.,0.};
1225   if(negtrack2->GetStatus()&AliESDtrack::kESDpid) negtrack2->GetESDpid(esdpid3);
1226
1227   Double_t esdpid[20];
1228   for(Int_t i=0;i<5;i++) {
1229     esdpid[i]    = esdpid0[i];
1230     esdpid[5+i]  = esdpid1[i];
1231     esdpid[10+i] = esdpid2[i];
1232     esdpid[15+i] = esdpid3[i];
1233   }
1234   the4Prong->SetPID(4,esdpid);
1235
1236   return the4Prong;
1237 }
1238 //-----------------------------------------------------------------------------
1239 AliAODVertex* AliAnalysisVertexingHF::PrimaryVertex(const TObjArray *trkArray,
1240                                                     AliVEvent *event) const
1241 {
1242   // Returns primary vertex to be used for this candidate
1243
1244   AliESDVertex *vertexESD = 0;
1245   AliAODVertex *vertexAOD = 0;
1246
1247
1248   if(!fRecoPrimVtxSkippingTrks && !fRmTrksFromPrimVtx) {
1249     // primary vertex from the input event
1250
1251     vertexESD = new AliESDVertex(*fV1);
1252
1253   } else {
1254     // primary vertex specific to this candidate
1255
1256     Int_t nTrks = trkArray->GetEntriesFast();
1257     AliVertexerTracks *vertexer = new AliVertexerTracks(event->GetMagneticField());
1258
1259     if(fRecoPrimVtxSkippingTrks) {
1260       // recalculating the vertex
1261
1262       if(strstr(fV1->GetTitle(),"VertexerTracksWithConstraint")) {
1263         Float_t diamondcovxy[3];
1264         event->GetDiamondCovXY(diamondcovxy);
1265         Double_t pos[3]={event->GetDiamondX(),event->GetDiamondY(),0.};
1266         Double_t cov[6]={diamondcovxy[0],diamondcovxy[1],diamondcovxy[2],0.,0.,10.*10.};
1267         AliESDVertex *diamond = new AliESDVertex(pos,cov,1.,1);
1268         vertexer->SetVtxStart(diamond);
1269         delete diamond; diamond=NULL;
1270         if(strstr(fV1->GetTitle(),"VertexerTracksWithConstraintOnlyFitter"))
1271           vertexer->SetOnlyFitter();
1272       }
1273       Int_t skipped[1000];
1274       Int_t nTrksToSkip=0,id;
1275       AliExternalTrackParam *t = 0;
1276       for(Int_t i=0; i<nTrks; i++) {
1277         t = (AliExternalTrackParam*)trkArray->UncheckedAt(i);
1278         id = (Int_t)t->GetID();
1279         if(id<0) continue;
1280         skipped[nTrksToSkip++] = id;
1281       }
1282       // TEMPORARY FIX
1283       // For AOD, skip also tracks without covariance matrix
1284       if(fInputAOD) {
1285         Double_t covtest[21];
1286         for(Int_t j=0; j<event->GetNumberOfTracks(); j++) {
1287           AliVTrack *vtrack = (AliVTrack*)event->GetTrack(j);
1288           if(!vtrack->GetCovarianceXYZPxPyPz(covtest)) {
1289             id = (Int_t)t->GetID();
1290             if(id<0) continue;
1291             skipped[nTrksToSkip++] = id;
1292           }
1293         }
1294       }
1295       //
1296       vertexer->SetSkipTracks(nTrksToSkip,skipped);
1297       vertexESD = (AliESDVertex*)vertexer->FindPrimaryVertex(event);
1298
1299     } else if(fRmTrksFromPrimVtx) {
1300       // removing the prongs tracks
1301
1302       TObjArray rmArray(nTrks);
1303       UShort_t *rmId = new UShort_t[nTrks];
1304       AliESDtrack *esdTrack = 0;
1305       AliESDtrack *t = 0;
1306       for(Int_t i=0; i<nTrks; i++) {
1307         t = (AliESDtrack*)trkArray->UncheckedAt(i);
1308         esdTrack = new AliESDtrack(*t);
1309         rmArray.AddLast(esdTrack);
1310         if(esdTrack->GetID()>=0) {
1311           rmId[i]=(UShort_t)esdTrack->GetID();
1312         } else {
1313           rmId[i]=9999;
1314         }
1315       }
1316       Float_t diamondxy[2]={event->GetDiamondX(),event->GetDiamondY()};
1317       vertexESD = vertexer->RemoveTracksFromVertex(fV1,&rmArray,rmId,diamondxy);
1318       delete [] rmId; rmId=NULL;
1319       rmArray.Delete();
1320
1321     }
1322
1323     if(!vertexESD) return vertexAOD;
1324     if(vertexESD->GetNContributors()<=0) {
1325       AliDebug(2,"vertexing failed");
1326       delete vertexESD; vertexESD=NULL;
1327       return vertexAOD;
1328     }
1329
1330     delete vertexer; vertexer=NULL;
1331
1332   }
1333
1334   // convert to AliAODVertex
1335   Double_t pos[3],cov[6],chi2perNDF;
1336   vertexESD->GetXYZ(pos); // position
1337   vertexESD->GetCovMatrix(cov); //covariance matrix
1338   chi2perNDF = vertexESD->GetChi2toNDF();
1339   delete vertexESD; vertexESD=NULL;
1340
1341   vertexAOD = new AliAODVertex(pos,cov,chi2perNDF);
1342
1343   return vertexAOD;
1344 }
1345 //-----------------------------------------------------------------------------
1346 void AliAnalysisVertexingHF::PrintStatus() const {
1347   // Print parameters being used
1348
1349   //printf("Preselections:\n");
1350   //   fTrackFilter->Dump();
1351   if(fSecVtxWithKF) {
1352     printf("Secondary vertex with Kalman filter package (AliKFParticle)\n");
1353   } else {
1354     printf("Secondary vertex with AliVertexerTracks\n");
1355   }
1356   if(fRecoPrimVtxSkippingTrks) printf("RecoPrimVtxSkippingTrks\n");
1357   if(fRmTrksFromPrimVtx) printf("RmTrksFromPrimVtx\n");
1358   if(fD0toKpi) {
1359     if(fCutsD0toKpi) fCutsD0toKpi->PrintAll();
1360     printf("Reconstruct D0->Kpi candidates with cuts:\n");
1361     printf("    |M-MD0| [GeV]    < %f\n",fD0toKpiCuts[0]);
1362     printf("    dca    [cm]  < %f\n",fD0toKpiCuts[1]);
1363     printf("    cosThetaStar     < %f\n",fD0toKpiCuts[2]);
1364     printf("    pTK     [GeV/c]    > %f\n",fD0toKpiCuts[3]);
1365     printf("    pTpi    [GeV/c]    > %f\n",fD0toKpiCuts[4]);
1366     printf("    |d0K|  [cm]  < %f\n",fD0toKpiCuts[5]);
1367     printf("    |d0pi| [cm]  < %f\n",fD0toKpiCuts[6]);
1368     printf("    d0d0  [cm^2] < %f\n",fD0toKpiCuts[7]);
1369     printf("    cosThetaPoint    > %f\n",fD0toKpiCuts[8]);
1370   }
1371   if(fDstar) {
1372     if(fFindVertexForDstar) {
1373       printf("    Reconstruct a secondary vertex for the D*\n");
1374     } else {
1375       printf("    Assume the D* comes from the primary vertex\n");
1376     }
1377     printf("    |M-MD*| [GeV]    < %f\n",fDstarCuts[0]);
1378     printf("    |M_Kpipi-M_Kpi-(MD*-MD0)| [GeV]  < %f\n",fDstarCuts[1]);
1379     printf("    pTpisoft [GeV/c]    > %f\n",fDstarCuts[2]);
1380     printf("    pTpisoft [GeV/c]    < %f\n",fDstarCuts[3]);
1381     printf("    Theta(pisoft,D0plane) < %f\n",fDstarCuts[4]);
1382     printf("Reconstruct D*->D0pi candidates with cuts:\n");
1383     printf("   D0 from D* cuts:\n");
1384     printf("    |M-MD0| [GeV]    < %f\n",fD0fromDstarCuts[0]);
1385     printf("    dca    [cm]  < %f\n",fD0fromDstarCuts[1]);
1386     printf("    cosThetaStar     < %f\n",fD0fromDstarCuts[2]);
1387     printf("    pTK     [GeV/c]    > %f\n",fD0fromDstarCuts[3]);
1388     printf("    pTpi    [GeV/c]    > %f\n",fD0fromDstarCuts[4]);
1389     printf("    |d0K|  [cm]  < %f\n",fD0fromDstarCuts[5]);
1390     printf("    |d0pi| [cm]  < %f\n",fD0fromDstarCuts[6]);
1391     printf("    d0d0  [cm^2] < %f\n",fD0fromDstarCuts[7]);
1392     printf("    cosThetaPoint    > %f\n",fD0fromDstarCuts[8]);
1393   }
1394   if(fJPSItoEle) {
1395     printf("Reconstruct J/psi from B candidates with cuts:\n");
1396     printf("    |M-MJPSI| [GeV]    < %f\n",fBtoJPSICuts[0]);
1397     printf("    dca    [cm]  < %f\n",fBtoJPSICuts[1]);
1398     printf("    cosThetaStar     < %f\n",fBtoJPSICuts[2]);
1399     printf("    pTP     [GeV/c]    > %f\n",fBtoJPSICuts[3]);
1400     printf("    pTN    [GeV/c]    > %f\n",fBtoJPSICuts[4]);
1401     printf("    |d0P|  [cm]  < %f\n",fBtoJPSICuts[5]);
1402     printf("    |d0N| [cm]  < %f\n",fBtoJPSICuts[6]);
1403     printf("    d0d0  [cm^2] < %f\n",fBtoJPSICuts[7]);
1404     printf("    cosThetaPoint    > %f\n",fBtoJPSICuts[8]);
1405   }
1406   if(f3Prong) {
1407     printf("Reconstruct 3 prong candidates.\n");
1408     printf("  D+->Kpipi cuts:\n");
1409     printf("    |M-MD+| [GeV]    < %f\n",fDplusCuts[0]);
1410     printf("    pTK     [GeV/c]    > %f\n",fDplusCuts[1]);
1411     printf("    pTPi    [GeV/c]    > %f\n",fDplusCuts[2]);
1412     printf("    |d0K|  [cm]  > %f\n",fDplusCuts[3]);
1413     printf("    |d0Pi| [cm]  > %f\n",fDplusCuts[4]);
1414     printf("    dist12    [cm]  < %f\n",fDplusCuts[5]);
1415     printf("    sigmavert [cm]   < %f\n",fDplusCuts[6]);
1416     printf("    dist prim-sec [cm] > %f\n",fDplusCuts[7]);
1417     printf("    pM=Max{pT1,pT2,pT3} [GeV/c] > %f\n",fDplusCuts[8]);
1418     printf("    cosThetaPoint    > %f\n",fDplusCuts[9]);
1419     printf("    Sum d0^2 [cm^2]  > %f\n",fDplusCuts[10]);
1420     printf("    dca cut [cm]  < %f\n",fDplusCuts[11]);
1421     printf("  Ds->KKpi cuts:\n");
1422     printf("    |M-MDs| [GeV]    < %f\n",fDsCuts[0]);
1423     printf("    pTK     [GeV/c]    > %f\n",fDsCuts[1]);
1424     printf("    pTPi    [GeV/c]    > %f\n",fDsCuts[2]);
1425     printf("    |d0K|  [cm]  > %f\n",fDsCuts[3]);
1426     printf("    |d0Pi| [cm]  > %f\n",fDsCuts[4]);
1427     printf("    dist12    [cm]  < %f\n",fDsCuts[5]);
1428     printf("    sigmavert [cm]   < %f\n",fDsCuts[6]);
1429     printf("    dist prim-sec [cm] > %f\n",fDsCuts[7]);
1430     printf("    pM=Max{pT1,pT2,pT3} [GeV/c] > %f\n",fDsCuts[8]);
1431     printf("    cosThetaPoint    > %f\n",fDsCuts[9]);
1432     printf("    Sum d0^2 [cm^2]  > %f\n",fDsCuts[10]);
1433     printf("    dca cut [cm]  < %f\n",fDsCuts[11]);
1434     printf("    Inv. Mass  phi [GeV]  < %f\n",fDsCuts[12]);
1435     printf("    Inv. Mass  K0* [GeV]  < %f\n",fDsCuts[13]);
1436     printf("  Lc->pKpi cuts:\n");
1437     printf("    |M-MLc| [GeV]    < %f\n",fLcCuts[0]);
1438     printf("    pTP     [GeV/c]    > %f\n",fLcCuts[1]);
1439     printf("    pTPi and pTK [GeV/c]    > %f\n",fLcCuts[2]);
1440     printf("    |d0P|  [cm]  > %f\n",fLcCuts[3]);
1441     printf("    |d0Pi| and |d0K| [cm]  > %f\n",fLcCuts[4]);
1442     printf("    dist12    [cm]  < %f\n",fLcCuts[5]);
1443     printf("    sigmavert [cm]   < %f\n",fLcCuts[6]);
1444     printf("    dist prim-sec [cm] > %f\n",fLcCuts[7]);
1445     printf("    pM=Max{pT1,pT2,pT3} [GeV/c] > %f\n",fLcCuts[8]);
1446     printf("    cosThetaPoint    > %f\n",fLcCuts[9]);
1447     printf("    Sum d0^2 [cm^2]  > %f\n",fLcCuts[10]);
1448     printf("    dca cut [cm]  < %f\n",fLcCuts[11]);
1449   }
1450
1451   return;
1452 }
1453 //-----------------------------------------------------------------------------
1454 AliAODVertex* AliAnalysisVertexingHF::ReconstructSecondaryVertex(TObjArray *trkArray,
1455                                                                  Double_t &dispersion,Bool_t useTRefArray) const
1456 {
1457   // Secondary vertex reconstruction with AliVertexerTracks or AliKFParticle
1458
1459   AliESDVertex *vertexESD = 0;
1460   AliAODVertex *vertexAOD = 0;
1461
1462   if(!fSecVtxWithKF) { // AliVertexerTracks
1463
1464     AliVertexerTracks *vertexer = new AliVertexerTracks(fBzkG);
1465     vertexer->SetVtxStart(fV1);
1466     vertexESD = (AliESDVertex*)vertexer->VertexForSelectedESDTracks(trkArray);
1467     delete vertexer; vertexer=NULL;
1468
1469     if(!vertexESD) return vertexAOD;
1470
1471     if(vertexESD->GetNContributors()!=trkArray->GetEntriesFast()) {
1472       AliDebug(2,"vertexing failed");
1473       delete vertexESD; vertexESD=NULL;
1474       return vertexAOD;
1475     }
1476
1477   } else { // Kalman Filter vertexer (AliKFParticle)
1478
1479     AliKFParticle::SetField(fBzkG);
1480
1481     AliKFVertex vertexKF;
1482
1483     Int_t nTrks = trkArray->GetEntriesFast();
1484     for(Int_t i=0; i<nTrks; i++) {
1485       AliESDtrack *esdTrack = (AliESDtrack*)trkArray->At(i);
1486       AliKFParticle daughterKF(*esdTrack,211);
1487       vertexKF.AddDaughter(daughterKF);
1488     }
1489     vertexESD = new AliESDVertex(vertexKF.Parameters(),
1490                                  vertexKF.CovarianceMatrix(),
1491                                  vertexKF.GetChi2(),
1492                                  vertexKF.GetNContributors());
1493
1494   }
1495
1496   // convert to AliAODVertex
1497   Double_t pos[3],cov[6],chi2perNDF;
1498   vertexESD->GetXYZ(pos); // position
1499   vertexESD->GetCovMatrix(cov); //covariance matrix
1500   chi2perNDF = vertexESD->GetChi2toNDF();
1501   dispersion = vertexESD->GetDispersion();
1502   delete vertexESD; vertexESD=NULL;
1503
1504   Int_t nprongs= (useTRefArray ? 0 : trkArray->GetEntriesFast());
1505   vertexAOD = new AliAODVertex(pos,cov,chi2perNDF,0x0,-1,AliAODVertex::kUndef,nprongs);
1506
1507   return vertexAOD;
1508 }
1509 //-----------------------------------------------------------------------------
1510 Bool_t AliAnalysisVertexingHF::SelectInvMass(Int_t decay,
1511                                              Int_t nprongs,
1512                                              Double_t *px,
1513                                              Double_t *py,
1514                                              Double_t *pz) const {
1515   // Check invariant mass cut
1516
1517   Short_t dummycharge=0;
1518   Double_t *dummyd0 = new Double_t[nprongs];
1519   for(Int_t ip=0;ip<nprongs;ip++) dummyd0[ip]=0.;
1520   AliAODRecoDecay *rd = new AliAODRecoDecay(0x0,nprongs,dummycharge,px,py,pz,dummyd0);
1521   delete [] dummyd0; dummyd0=NULL;
1522
1523   UInt_t pdg2[2],pdg3[3],pdg4[4];
1524   Double_t mPDG,minv;
1525
1526   Bool_t retval=kFALSE;
1527   switch (decay)
1528     {
1529     case 0:                  // D0->Kpi
1530       pdg2[0]=211; pdg2[1]=321;
1531       mPDG=TDatabasePDG::Instance()->GetParticle(421)->Mass();
1532       minv = rd->InvMass(nprongs,pdg2);
1533       if(TMath::Abs(minv-mPDG)<fD0toKpiCuts[0]) retval=kTRUE;
1534       //if(TMath::Abs(minv-mPDG)<fCutsD0toKpi->GetMassCut()) retval=kTRUE;
1535       pdg2[0]=321; pdg2[1]=211;
1536       minv = rd->InvMass(nprongs,pdg2);
1537       if(TMath::Abs(minv-mPDG)<fD0toKpiCuts[0]) retval=kTRUE;
1538       //if(TMath::Abs(minv-mPDG)<fCutsD0toKpi->GetMassCut()) retval=kTRUE;
1539       break;
1540     case 1:                  // JPSI->ee
1541       pdg2[0]=11; pdg2[1]=11;
1542       mPDG=TDatabasePDG::Instance()->GetParticle(443)->Mass();
1543       minv = rd->InvMass(nprongs,pdg2);
1544       if(TMath::Abs(minv-mPDG)<fBtoJPSICuts[0]) retval=kTRUE;
1545       break;
1546     case 2:                  // D+->Kpipi
1547       pdg3[0]=211; pdg3[1]=321; pdg3[2]=211;
1548       mPDG=TDatabasePDG::Instance()->GetParticle(411)->Mass();
1549       minv = rd->InvMass(nprongs,pdg3);
1550       if(TMath::Abs(minv-mPDG)<fDplusCuts[0]) retval=kTRUE;
1551                             // Ds+->KKpi
1552       pdg3[0]=321; pdg3[1]=321; pdg3[2]=211;
1553       mPDG=TDatabasePDG::Instance()->GetParticle(431)->Mass();
1554       minv = rd->InvMass(nprongs,pdg3);
1555       if(TMath::Abs(minv-mPDG)<fDsCuts[0]) retval=kTRUE;
1556       pdg3[0]=211; pdg3[1]=321; pdg3[2]=321;
1557       minv = rd->InvMass(nprongs,pdg3);
1558       if(TMath::Abs(minv-mPDG)<fDsCuts[0]) retval=kTRUE;
1559                             // Lc->pKpi
1560       pdg3[0]=2212; pdg3[1]=321; pdg3[2]=211;
1561       mPDG=TDatabasePDG::Instance()->GetParticle(4122)->Mass();
1562       minv = rd->InvMass(nprongs,pdg3);
1563       if(TMath::Abs(minv-mPDG)<fLcCuts[0]) retval=kTRUE;
1564       pdg3[0]=211; pdg3[1]=321; pdg3[2]=2212;
1565       minv = rd->InvMass(nprongs,pdg3);
1566       if(TMath::Abs(minv-mPDG)<fLcCuts[0]) retval=kTRUE;
1567       break;
1568     case 3:                  // D*->D0pi
1569       pdg2[0]=211; pdg2[1]=421; // in twoTrackArrayCasc we put the pion first
1570       mPDG=TDatabasePDG::Instance()->GetParticle(413)->Mass();
1571       minv = rd->InvMass(nprongs,pdg2);
1572       if(TMath::Abs(minv-mPDG)<fDstarCuts[0]) retval=kTRUE;
1573       break;
1574     case 4:                 // D0->K3pi without PID
1575       pdg4[0]=321; pdg4[1]=211; pdg4[2]=211; pdg4[3]=211;
1576       mPDG=TDatabasePDG::Instance()->GetParticle(421)->Mass();
1577       minv = rd->InvMass(nprongs,pdg4);
1578       if(TMath::Abs(minv-mPDG)<fD0to4ProngsCuts[0])
1579         retval=kTRUE;
1580       pdg4[0]=211; pdg4[1]=321; pdg4[2]=211; pdg4[3]=211;
1581       mPDG=TDatabasePDG::Instance()->GetParticle(421)->Mass();
1582       minv = rd->InvMass(nprongs,pdg4);
1583       if(TMath::Abs(minv-mPDG)<fD0to4ProngsCuts[0]) retval=kTRUE;
1584       pdg4[0]=211; pdg4[1]=211; pdg4[2]=321; pdg4[3]=211;
1585       mPDG=TDatabasePDG::Instance()->GetParticle(421)->Mass();
1586       minv = rd->InvMass(nprongs,pdg4);
1587       if(TMath::Abs(minv-mPDG)<fD0to4ProngsCuts[0]) retval=kTRUE;
1588       pdg4[0]=211; pdg4[1]=211; pdg4[2]=211; pdg4[3]=321;
1589       mPDG=TDatabasePDG::Instance()->GetParticle(421)->Mass();
1590       minv = rd->InvMass(nprongs,pdg4);
1591       if(TMath::Abs(minv-mPDG)<fD0to4ProngsCuts[0]) retval=kTRUE;
1592       break;
1593     default:
1594       printf("SelectInvMass(): wrong decay selection\n");
1595       break;
1596     }
1597
1598   delete rd; rd=NULL;
1599
1600   return retval;
1601 }
1602 //-----------------------------------------------------------------------------
1603 void AliAnalysisVertexingHF::SelectTracksAndCopyVertex(const AliVEvent *event,
1604                                    TObjArray &seleTrksArray,Int_t &nSeleTrks,
1605                                    UChar_t *seleFlags,Int_t *evtNumber)
1606 {
1607   // Apply single-track preselection.
1608   // Fill a TObjArray with selected tracks (for displaced vertices or
1609   // soft pion from D*). Selection flag stored in seleFlags.
1610   // Create the AliESDVertex object (convert from AliAODVertex if necessary)
1611   // In case of AOD input, also fill fAODMap for track index<->ID
1612
1613   const AliVVertex *vprimary = event->GetPrimaryVertex();
1614
1615   if(fV1) { delete fV1; fV1=NULL; }
1616   if(fAODMap) { delete fAODMap; fAODMap=NULL; }
1617
1618   Int_t nindices=0;
1619   UShort_t *indices = 0;
1620   Double_t pos[3],cov[6];
1621
1622   if(!fInputAOD) { // ESD
1623     fV1 = new AliESDVertex(*((AliESDVertex*)vprimary));
1624   } else {         // AOD
1625     vprimary->GetXYZ(pos);
1626     vprimary->GetCovarianceMatrix(cov);
1627     fV1 = new AliESDVertex(pos,cov,100.,100,vprimary->GetName());
1628     indices = new UShort_t[event->GetNumberOfTracks()];
1629     fAODMapSize = 100000;
1630     fAODMap = new Int_t[fAODMapSize];
1631   }
1632
1633
1634   Int_t entries = (Int_t)event->GetNumberOfTracks();
1635   Bool_t okDisplaced=kFALSE,okSoftPi=kFALSE;
1636   nSeleTrks=0;
1637
1638   // transfer ITS tracks from event to arrays
1639   for(Int_t i=0; i<entries; i++) {
1640     AliVTrack *track;
1641     track = (AliVTrack*)event->GetTrack(i);
1642
1643     // skip pure ITS SA tracks
1644     if(track->GetStatus()&AliESDtrack::kITSpureSA) continue;
1645
1646     // TEMPORARY: check that the cov matrix is there
1647     Double_t covtest[21];
1648     if(!track->GetCovarianceXYZPxPyPz(covtest)) continue;
1649     //
1650
1651     if(fInputAOD) {
1652       AliAODTrack *aodt = (AliAODTrack*)track;
1653       if(aodt->GetUsedForPrimVtxFit()) {
1654         indices[nindices]=aodt->GetID(); nindices++;
1655       }
1656       fAODMap[(Int_t)aodt->GetID()] = i;
1657     }
1658
1659     AliESDtrack *esdt = 0;
1660
1661     if(!fInputAOD) {
1662       esdt = (AliESDtrack*)track;
1663     } else {
1664       esdt = new AliESDtrack(track);
1665     }
1666
1667     // single track selection
1668     okDisplaced=kFALSE; okSoftPi=kFALSE;
1669     if(fMixEvent){
1670       evtNumber[i]=((AliMixedEvent*)event)->EventIndex(i);
1671       const AliVVertex* eventVtx=((AliMixedEvent*)event)->GetEventVertex(i);
1672       Double_t vtxPos[3],primPos[3],primCov[6],trasl[3];
1673       eventVtx->GetXYZ(vtxPos);
1674       vprimary->GetXYZ(primPos);
1675       eventVtx->GetCovarianceMatrix(primCov);
1676       for(Int_t ind=0;ind<3;ind++){
1677         trasl[ind]=vtxPos[ind]-primPos[ind];
1678       }
1679
1680       Bool_t isTransl=esdt->Translate(trasl,primCov);
1681       if(!isTransl) {
1682         delete esdt;
1683         esdt = NULL;
1684         continue;
1685       }
1686     }
1687
1688     if(SingleTrkCuts(esdt,okDisplaced,okSoftPi)) {
1689       seleTrksArray.AddLast(esdt);
1690       seleFlags[nSeleTrks]=0;
1691       if(okDisplaced) SETBIT(seleFlags[nSeleTrks],kBitDispl);
1692       if(okSoftPi)    SETBIT(seleFlags[nSeleTrks],kBitSoftPi);
1693       nSeleTrks++;
1694     } else {
1695       if(fInputAOD) delete esdt;
1696       esdt = NULL;
1697       continue;
1698     }
1699
1700   } // end loop on tracks
1701
1702   // primary vertex from AOD
1703   if(fInputAOD) {
1704     delete fV1; fV1=NULL;
1705     vprimary->GetXYZ(pos);
1706     vprimary->GetCovarianceMatrix(cov);
1707     Double_t chi2toNDF = vprimary->GetChi2perNDF();
1708     Int_t ncontr=nindices;
1709     if(!strcmp(vprimary->GetTitle(),"VertexerTracksWithContraint")) ncontr += 1;
1710     Double_t chi2=chi2toNDF*(2.*(Double_t)ncontr-3.);
1711     fV1 = new AliESDVertex(pos,cov,chi2,ncontr,vprimary->GetName());
1712     fV1->SetTitle(vprimary->GetTitle());
1713     fV1->SetIndices(nindices,indices);
1714   }
1715   if(indices) { delete [] indices; indices=NULL; }
1716
1717
1718   return;
1719 }
1720 //-----------------------------------------------------------------------------
1721 void AliAnalysisVertexingHF::SetD0toKpiCuts(Double_t cut0,Double_t cut1,
1722                                    Double_t cut2,Double_t cut3,Double_t cut4,
1723                                    Double_t cut5,Double_t cut6,
1724                                    Double_t cut7,Double_t cut8)
1725 {
1726   // Set the cuts for D0 selection
1727   fD0toKpiCuts[0] = cut0;
1728   fD0toKpiCuts[1] = cut1;
1729   fD0toKpiCuts[2] = cut2;
1730   fD0toKpiCuts[3] = cut3;
1731   fD0toKpiCuts[4] = cut4;
1732   fD0toKpiCuts[5] = cut5;
1733   fD0toKpiCuts[6] = cut6;
1734   fD0toKpiCuts[7] = cut7;
1735   fD0toKpiCuts[8] = cut8;
1736
1737   return;
1738 }
1739 //-----------------------------------------------------------------------------
1740 void AliAnalysisVertexingHF::SetD0toKpiCuts(const Double_t cuts[9])
1741 {
1742   // Set the cuts for D0 selection
1743
1744   for(Int_t i=0; i<9; i++) fD0toKpiCuts[i] = cuts[i];
1745
1746   return;
1747 }
1748 //-----------------------------------------------------------------------------
1749 void AliAnalysisVertexingHF::SetD0fromDstarCuts(Double_t cut0,Double_t cut1,
1750                                    Double_t cut2,Double_t cut3,Double_t cut4,
1751                                    Double_t cut5,Double_t cut6,
1752                                    Double_t cut7,Double_t cut8)
1753 {
1754   // Set the cuts for D0 from D* selection
1755   fD0fromDstarCuts[0] = cut0;
1756   fD0fromDstarCuts[1] = cut1;
1757   fD0fromDstarCuts[2] = cut2;
1758   fD0fromDstarCuts[3] = cut3;
1759   fD0fromDstarCuts[4] = cut4;
1760   fD0fromDstarCuts[5] = cut5;
1761   fD0fromDstarCuts[6] = cut6;
1762   fD0fromDstarCuts[7] = cut7;
1763   fD0fromDstarCuts[8] = cut8;
1764
1765   return;
1766 }
1767 //-----------------------------------------------------------------------------
1768 void AliAnalysisVertexingHF::SetD0fromDstarCuts(const Double_t cuts[9])
1769 {
1770   // Set the cuts for D0 from D* selection
1771
1772   for(Int_t i=0; i<9; i++) fD0fromDstarCuts[i] = cuts[i];
1773
1774   return;
1775 }
1776 //-----------------------------------------------------------------------------
1777 void AliAnalysisVertexingHF::SetDstarCuts(Double_t cut0,Double_t cut1,
1778                                           Double_t cut2,Double_t cut3,
1779                                           Double_t cut4)
1780 {
1781   // Set the cuts for D* selection
1782   fDstarCuts[0] = cut0;
1783   fDstarCuts[1] = cut1;
1784   fDstarCuts[2] = cut2;
1785   fDstarCuts[3] = cut3;
1786   fDstarCuts[4] = cut4;
1787
1788   return;
1789 }
1790 //-----------------------------------------------------------------------------
1791 void AliAnalysisVertexingHF::SetDstarCuts(const Double_t cuts[5])
1792 {
1793   // Set the cuts for D* selection
1794
1795   for(Int_t i=0; i<5; i++) fDstarCuts[i] = cuts[i];
1796
1797   return;
1798 }
1799 //-----------------------------------------------------------------------------
1800 void AliAnalysisVertexingHF::SetBtoJPSICuts(Double_t cut0,Double_t cut1,
1801                                    Double_t cut2,Double_t cut3,Double_t cut4,
1802                                    Double_t cut5,Double_t cut6,
1803                                    Double_t cut7,Double_t cut8)
1804 {
1805   // Set the cuts for J/psi from B selection
1806   fBtoJPSICuts[0] = cut0;
1807   fBtoJPSICuts[1] = cut1;
1808   fBtoJPSICuts[2] = cut2;
1809   fBtoJPSICuts[3] = cut3;
1810   fBtoJPSICuts[4] = cut4;
1811   fBtoJPSICuts[5] = cut5;
1812   fBtoJPSICuts[6] = cut6;
1813   fBtoJPSICuts[7] = cut7;
1814   fBtoJPSICuts[8] = cut8;
1815
1816   return;
1817 }
1818 //-----------------------------------------------------------------------------
1819 void AliAnalysisVertexingHF::SetBtoJPSICuts(const Double_t cuts[9])
1820 {
1821   // Set the cuts for J/psi from B selection
1822
1823   for(Int_t i=0; i<9; i++) fBtoJPSICuts[i] = cuts[i];
1824
1825   return;
1826 }
1827 //-----------------------------------------------------------------------------
1828 void AliAnalysisVertexingHF::SetDplusCuts(Double_t cut0,Double_t cut1,
1829                                    Double_t cut2,Double_t cut3,Double_t cut4,
1830                                    Double_t cut5,Double_t cut6,
1831                                    Double_t cut7,Double_t cut8,
1832                                    Double_t cut9,Double_t cut10,Double_t cut11)
1833 {
1834   // Set the cuts for Dplus->Kpipi selection
1835   fDplusCuts[0] = cut0;
1836   fDplusCuts[1] = cut1;
1837   fDplusCuts[2] = cut2;
1838   fDplusCuts[3] = cut3;
1839   fDplusCuts[4] = cut4;
1840   fDplusCuts[5] = cut5;
1841   fDplusCuts[6] = cut6;
1842   fDplusCuts[7] = cut7;
1843   fDplusCuts[8] = cut8;
1844   fDplusCuts[9] = cut9;
1845   fDplusCuts[10] = cut10;
1846   fDplusCuts[11] = cut11;
1847
1848   return;
1849 }
1850 //-----------------------------------------------------------------------------
1851 void AliAnalysisVertexingHF::SetDplusCuts(const Double_t cuts[12])
1852 {
1853   // Set the cuts for Dplus->Kpipi selection
1854
1855   for(Int_t i=0; i<12; i++) fDplusCuts[i] = cuts[i];
1856
1857   return;
1858 }
1859 //-----------------------------------------------------------------------------
1860 void AliAnalysisVertexingHF::SetDsCuts(Double_t cut0,Double_t cut1,
1861                                        Double_t cut2,Double_t cut3,
1862                                        Double_t cut4,Double_t cut5,
1863                                        Double_t cut6,Double_t cut7,
1864                                        Double_t cut8,Double_t cut9,
1865                                        Double_t cut10,Double_t cut11,
1866                                        Double_t cut12,Double_t cut13)
1867 {
1868   // Set the cuts for Ds->KKpi selection
1869   fDsCuts[0] = cut0;
1870   fDsCuts[1] = cut1;
1871   fDsCuts[2] = cut2;
1872   fDsCuts[3] = cut3;
1873   fDsCuts[4] = cut4;
1874   fDsCuts[5] = cut5;
1875   fDsCuts[6] = cut6;
1876   fDsCuts[7] = cut7;
1877   fDsCuts[8] = cut8;
1878   fDsCuts[9] = cut9;
1879   fDsCuts[10] = cut10;
1880   fDsCuts[11] = cut11;
1881   fDsCuts[12] = cut12;
1882   fDsCuts[13] = cut13;
1883
1884   return;
1885 }
1886 //-----------------------------------------------------------------------------
1887 void AliAnalysisVertexingHF::SetDsCuts(const Double_t cuts[13])
1888 {
1889   // Set the cuts for Ds->KKpi selection
1890
1891   for(Int_t i=0; i<14; i++) fDsCuts[i] = cuts[i];
1892
1893   return;
1894 }
1895 //-----------------------------------------------------------------------------
1896 void AliAnalysisVertexingHF::SetLcCuts(Double_t cut0,Double_t cut1,
1897                                    Double_t cut2,Double_t cut3,Double_t cut4,
1898                                    Double_t cut5,Double_t cut6,
1899                                    Double_t cut7,Double_t cut8,
1900                                    Double_t cut9,Double_t cut10,Double_t cut11)
1901 {
1902   // Set the cuts for Lc->pKpi selection
1903   fLcCuts[0] = cut0;
1904   fLcCuts[1] = cut1;
1905   fLcCuts[2] = cut2;
1906   fLcCuts[3] = cut3;
1907   fLcCuts[4] = cut4;
1908   fLcCuts[5] = cut5;
1909   fLcCuts[6] = cut6;
1910   fLcCuts[7] = cut7;
1911   fLcCuts[8] = cut8;
1912   fLcCuts[9] = cut9;
1913   fLcCuts[10] = cut10;
1914   fLcCuts[11] = cut11;
1915
1916   return;
1917 }
1918 //-----------------------------------------------------------------------------
1919 void AliAnalysisVertexingHF::SetLcCuts(const Double_t cuts[12])
1920 {
1921   // Set the cuts for Lc->pKpi selection
1922
1923   for(Int_t i=0; i<12; i++) fLcCuts[i] = cuts[i];
1924
1925   return;
1926 }
1927 //-----------------------------------------------------------------------------
1928 void AliAnalysisVertexingHF::SetD0to4ProngsCuts(Double_t cut0,Double_t cut1,
1929                                    Double_t cut2,Double_t cut3,Double_t cut4,
1930                                    Double_t cut5,Double_t cut6,
1931                                    Double_t cut7,Double_t cut8)
1932 {
1933   // Set the cuts for D0->Kpipipi selection
1934
1935   fD0to4ProngsCuts[0] = cut0;
1936   fD0to4ProngsCuts[1] = cut1;
1937   fD0to4ProngsCuts[2] = cut2;
1938   fD0to4ProngsCuts[3] = cut3;
1939   fD0to4ProngsCuts[4] = cut4;
1940   fD0to4ProngsCuts[5] = cut5;
1941   fD0to4ProngsCuts[6] = cut6;
1942   fD0to4ProngsCuts[7] = cut7;
1943   fD0to4ProngsCuts[8] = cut8;
1944
1945   return;
1946 }
1947 //-----------------------------------------------------------------------------
1948 void AliAnalysisVertexingHF::SetD0to4ProngsCuts(const Double_t cuts[9])
1949 {
1950   // Set the cuts for D0->Kpipipi selection
1951
1952   for(Int_t i=0; i<9; i++) fD0to4ProngsCuts[i] = cuts[i];
1953
1954   return;
1955 }
1956 //-----------------------------------------------------------------------------
1957 Bool_t AliAnalysisVertexingHF::SingleTrkCuts(AliESDtrack *trk,
1958                                              Bool_t &okDisplaced,Bool_t &okSoftPi) const
1959 {
1960   // Check if track passes some kinematical cuts
1961
1962   // this is needed to store the impact parameters
1963   trk->RelateToVertex(fV1,fBzkG,kVeryBig);
1964
1965   UInt_t selectInfo;
1966   //
1967   // Track selection, displaced tracks
1968   selectInfo = 0;
1969   if(fTrackFilter) {
1970     selectInfo = fTrackFilter->IsSelected(trk);
1971   }
1972   if(selectInfo) okDisplaced=kTRUE;
1973   // Track selection, soft pions
1974   selectInfo = 0;
1975   if(fDstar && fTrackFilterSoftPi) {
1976     selectInfo = fTrackFilterSoftPi->IsSelected(trk);
1977   }
1978   if(selectInfo) okSoftPi=kTRUE;
1979
1980   if(okDisplaced || okSoftPi) return kTRUE;
1981
1982   return kFALSE;
1983 }
1984 //-----------------------------------------------------------------------------