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