PWG3/vertexingHF/AliAnalysisVertexingHF.h

   1 #ifndef ALIANALYSISVERTEXINGHF_H
   2 #define ALIANALYSISVERTEXINGHF_H
   3 /* Copyright(c) 1998-2007, ALICE Experiment at CERN, All rights reserved. *
   4  * See cxx source for full Copyright notice                               */
   5
   6 //-------------------------------------------------------------------------
   7 //                      Class AliAnalysisVertexingHF
   8 //            Reconstruction of heavy-flavour decay candidates
   9 //
  10 //  Origin: E.Bruna, G.E.Bruno, A.Dainese, F.Prino, R.Romita, X.M.Zhang
  11 //  Contact: andrea.dainese@pd.infn.it
  12 //-------------------------------------------------------------------------
  13
  14 #include <TNamed.h>
  15
  16 class TList;
  17 class AliESDVertex;
  18 class AliAODRecoDecay;
  19 class AliAODRecoDecayHF;
  20 class AliAODRecoDecayHF2Prong;
  21 class AliAODRecoDecayHF3Prong;
  22 class AliAODRecoDecayHF4Prong;
  23 class AliAODRecoCascadeHF;
  24 class AliAnalysisFilter;
  25 class AliRDHFCuts;
  26 class AliRDHFCutsD0toKpi;
  27 class AliRDHFCutsJpsitoee;
  28 class AliRDHFCutsDplustoKpipi;
  29 class AliRDHFCutsDstoKKpi;
  30 class AliRDHFCutsLctopKpi;
  31 class AliRDHFCutsLctoV0;
  32 class AliRDHFCutsD0toKpipipi;
  33 class AliRDHFCutsDStartoKpipi;
  34 class AliESDtrack;
  35 class AliVEvent;
  36 class AliAODVertex;
  37 class AliESDv0;
  38 class AliAODv0;
  39
  40 //-----------------------------------------------------------------------------
  41 class AliAnalysisVertexingHF : public TNamed {
  42  public:
  43   //
  44   AliAnalysisVertexingHF();
  45   AliAnalysisVertexingHF(const AliAnalysisVertexingHF& source);
  46   AliAnalysisVertexingHF& operator=(const AliAnalysisVertexingHF& source);
  47   virtual ~AliAnalysisVertexingHF();
  48
  49   void FindCandidates(AliVEvent *event,
  50                       TClonesArray *aodVerticesHFTClArr,
  51                       TClonesArray *aodD0toKpiTClArr,
  52                       TClonesArray *aodJPSItoEleTClArr,
  53                       TClonesArray *aodCharm3ProngTClArr,
  54                       TClonesArray *aodCharm4ProngTClArr,
  55                       TClonesArray *aodDstarTClArr,
  56                       TClonesArray *aodCascadesTClArr,
  57                       TClonesArray *aodLikeSign2ProngTClArr,
  58                       TClonesArray *aodLikeSign3ProngTClArr);
  59
  60   TList* FillListOfCuts();
  61   void FixReferences(AliAODEvent *aod);
  62   void PrintStatus() const;
  63   void SetSecVtxWithKF() { fSecVtxWithKF=kTRUE; }
  64   void SetD0toKpiOn() { fD0toKpi=kTRUE; }
  65   void SetD0toKpiOff() { fD0toKpi=kFALSE; }
  66   void SetJPSItoEleOn() { fJPSItoEle=kTRUE; }
  67   void SetJPSItoEleOff() { fJPSItoEle=kFALSE; }
  68   void Set3ProngOn() { f3Prong=kTRUE; }
  69   void Set3ProngOff() { f3Prong=kFALSE; }
  70   void Set4ProngOn() { f4Prong=kTRUE; }
  71   void Set4ProngOff() { f4Prong=kFALSE; }
  72   void SetDstarOn() { fDstar=kTRUE; }
  73   void SetDstarOff() { fDstar=kFALSE; }
  74   void SetCascadesOn() { fCascades=kTRUE; }
  75   void SetCascadesOff() { fCascades=kFALSE; }
  76   void SetLikeSignOn() { fLikeSign=kTRUE; }
  77   void SetLikeSignOff() { fLikeSign=kFALSE; }
  78   void SetMixEventOn() { fMixEvent=kTRUE; }
  79   void SetMixEventOff() { fMixEvent=kFALSE; }
  80   void SetInputAOD() { fInputAOD=kTRUE; }
  81   Bool_t GetD0toKpi() const { return fD0toKpi; }
  82   Bool_t GetJPSItoEle() const { return fJPSItoEle; }
  83   Bool_t Get3Prong() const { return f3Prong; }
  84   Bool_t Get4Prong() const { return f4Prong; }
  85   Bool_t GetDstar()  const { return fDstar; }
  86   Bool_t GetCascades() const { return fCascades; }
  87   Bool_t GetLikeSign() const { return fLikeSign; }
  88   Bool_t GetMixEvent() const { return fMixEvent; }
  89   Bool_t GetInputAOD() const { return fInputAOD; }
  90   Bool_t GetRecoPrimVtxSkippingTrks() const {return fRecoPrimVtxSkippingTrks;}
  91   Bool_t GetRmTrksFromPrimVtx() const {return fRmTrksFromPrimVtx;}
  92   void SetFindVertexForDstar(Bool_t vtx=kTRUE) { fFindVertexForDstar=vtx; }
  93   void SetFindVertexForCascades(Bool_t vtx=kTRUE) { fFindVertexForCascades=vtx; }
  94   void SetRecoPrimVtxSkippingTrks()
  95     { fRecoPrimVtxSkippingTrks=kTRUE; fRmTrksFromPrimVtx=kFALSE;}
  96   void UnsetRecoPrimVtxSkippingTrks()
  97     { fRecoPrimVtxSkippingTrks=kFALSE; fRmTrksFromPrimVtx=kFALSE;}
  98   void SetRmTrksFromPrimVtx()
  99     {fRmTrksFromPrimVtx=kTRUE; fRecoPrimVtxSkippingTrks=kFALSE; }
 100   void SetTrackFilter(AliAnalysisFilter* trackF) { fTrackFilter = trackF; }
 101   void SetTrackFilterSoftPi(AliAnalysisFilter* trackF) { fTrackFilterSoftPi = trackF; }
 102   AliAnalysisFilter* GetTrackFilter() const { return fTrackFilter; }
 103   AliAnalysisFilter* GetTrackFilterSoftPi() const { return fTrackFilterSoftPi; }
 104   void SetCutsD0toKpi(AliRDHFCutsD0toKpi* cuts) { fCutsD0toKpi = cuts; }
 105   AliRDHFCutsD0toKpi* GetCutsD0toKpi() const { return fCutsD0toKpi; }
 106   void SetCutsJpsitoee(AliRDHFCutsJpsitoee* cuts) { fCutsJpsitoee = cuts; }
 107   AliRDHFCutsJpsitoee* GetCutsJpsitoee() const { return fCutsJpsitoee; }
 108   void SetCutsDplustoKpipi(AliRDHFCutsDplustoKpipi* cuts) { fCutsDplustoKpipi = cuts; }
 109   AliRDHFCutsDplustoKpipi* GetCutsDplustoKpipi() const { return fCutsDplustoKpipi; }
 110   void SetCutsDstoKKpi(AliRDHFCutsDstoKKpi* cuts) { fCutsDstoKKpi = cuts; }
 111   AliRDHFCutsDstoKKpi* GetCutsDstoKKpi() const { return fCutsDstoKKpi; }
 112   void SetCutsLctopKpi(AliRDHFCutsLctopKpi* cuts) { fCutsLctopKpi = cuts; }
 113   AliRDHFCutsLctopKpi* GetCutsLctopKpi() const { return fCutsLctopKpi; }
 114   void SetCutsLctoV0(AliRDHFCutsLctoV0* cuts) { fCutsLctoV0 = cuts; }
 115   AliRDHFCutsLctoV0* GetCutsLctoV0() const { return fCutsLctoV0; }
 116   void SetCutsD0toKpipipi(AliRDHFCutsD0toKpipipi* cuts) { fCutsD0toKpipipi = cuts; }
 117   AliRDHFCutsD0toKpipipi* GetCutsD0toKpipipi() const { return fCutsD0toKpipipi; }
 118   void SetCutsDStartoKpipi(AliRDHFCutsDStartoKpipi* cuts) { fCutsDStartoKpipi = cuts; }
 119   AliRDHFCutsDStartoKpipi* GetCutsDStartoKpipi() const { return fCutsDStartoKpipi; }
 120   void SetMassCutBeforeVertexing(Bool_t flag) { fMassCutBeforeVertexing=flag; }
 121
 122   //
 123  private:
 124   //
 125   enum { kBitDispl = 0, kBitSoftPi = 1 };
 126
 127   Bool_t fInputAOD; // input from AOD (kTRUE) or ESD (kFALSE)
 128   Int_t fAODMapSize; // size of fAODMap
 129   Int_t *fAODMap; //[fAODMapSize] map between index and ID for AOD tracks
 130
 131   Double_t fBzkG; // z componenent of field in kG
 132
 133   Bool_t fSecVtxWithKF; // if kTRUE use KF vertexer, else AliVertexerTracks
 134
 135   Bool_t fRecoPrimVtxSkippingTrks; // flag for primary vertex reco on the fly
 136                                    // for each candidate, w/o its daughters
 137   Bool_t fRmTrksFromPrimVtx; // flag for fast removal of daughters from
 138                              // the primary vertex
 139
 140   AliESDVertex *fV1; // primary vertex
 141
 142   // flag to enable candidates production
 143   Bool_t fD0toKpi;   // D0->Kpi
 144   Bool_t fJPSItoEle; // Jpsi->ee
 145   Bool_t f3Prong;    // D+,Ds,Lc
 146   Bool_t f4Prong;    // D0->Kpipipi
 147   Bool_t fDstar;     // D*->D0pi
 148   Bool_t fCascades;  // cascades, Lc --> v0+track
 149   Bool_t fLikeSign;  // Like-sign pairs
 150   Bool_t fMixEvent; // event mixing
 151
 152   // single-track cuts
 153   AliAnalysisFilter *fTrackFilter; //  Track Filter for displaced vertices
 154   AliAnalysisFilter *fTrackFilterSoftPi; //  Track Filter for D* soft pion
 155   // candidates cuts
 156   AliRDHFCutsD0toKpi *fCutsD0toKpi; // D0->Kpi cuts
 157   AliRDHFCutsJpsitoee *fCutsJpsitoee; // J/psi->ee cuts
 158   AliRDHFCutsDplustoKpipi *fCutsDplustoKpipi; // D+->Kpipi cuts
 159   AliRDHFCutsDstoKKpi *fCutsDstoKKpi; // Ds->KKpi cuts
 160   AliRDHFCutsLctopKpi *fCutsLctopKpi; // Lc->pKpi cuts
 161   AliRDHFCutsLctoV0 *fCutsLctoV0; // Lc --> v0 + bachelor cuts
 162   AliRDHFCutsD0toKpipipi *fCutsD0toKpipipi; // D0->Kpipipi cuts
 163   AliRDHFCutsDStartoKpipi *fCutsDStartoKpipi; // Dstar->D0pi cuts
 164
 165   TList *fListOfCuts;    // pointer to list of cuts for output file
 166   Bool_t fFindVertexForDstar; // reconstruct a secondary vertex or assume it's from the primary vertex
 167   Bool_t fFindVertexForCascades;  // reconstruct a secondary vertex or assume it's from the primary vertex
 168   Bool_t fMassCutBeforeVertexing; // to go faster in PbPb
 169   // dummies for invariant mass calculation
 170   AliAODRecoDecay *fMassCalc2; // for 2 prong
 171   AliAODRecoDecay *fMassCalc3; // for 3 prong
 172   AliAODRecoDecay *fMassCalc4; // for 4 prong
 173   //
 174   void AddRefs(AliAODVertex *v,AliAODRecoDecayHF *rd,const AliVEvent *event,
 175                const TObjArray *trkArray) const;
 176   void AddDaughterRefs(AliAODVertex *v,const AliVEvent *event,
 177                        const TObjArray *trkArray) const;
 178   AliAODRecoDecayHF2Prong* Make2Prong(TObjArray *twoTrackArray1,AliVEvent *event,
 179                                       AliAODVertex *secVert,Double_t dcap1n1,
 180                                       Bool_t &okD0,Bool_t &okJPSI,Bool_t &okD0fromDstar) const;
 181   AliAODRecoDecayHF3Prong* Make3Prong(TObjArray *threeTrackArray,AliVEvent *event,
 182                                       AliAODVertex *secVert,
 183                                       Double_t dispersion,
 184                                       const AliAODVertex *vertexp1n1,
 185                                       const AliAODVertex *vertexp2n1,
 186                                       Double_t dcap1n1,Double_t dcap2n1,Double_t dcap1p2,
 187                                       Bool_t &ok3Prong) const;
 188   AliAODRecoDecayHF4Prong* Make4Prong(TObjArray *fourTrackArray,AliVEvent *event,
 189                                       AliAODVertex *secVert,
 190                                       const AliAODVertex *vertexp1n1,
 191                                       const AliAODVertex *vertexp1n1p2,
 192                                       Double_t dcap1n1,Double_t dcap1n2,
 193                                       Double_t dcap2n1,Double_t dcap2n2,
 194                                       Bool_t &ok4Prong) const;
 195   AliAODRecoCascadeHF* MakeCascade(TObjArray *twoTrackArray,AliVEvent *event,
 196                                    AliAODVertex *secVert,
 197                                    AliAODRecoDecayHF2Prong *rd2Prong,
 198                                    Double_t dca,
 199                                    Bool_t &okDstar) const;
 200   AliAODRecoCascadeHF* MakeCascade(TObjArray *twoTrackArray,AliVEvent *event,
 201                                    AliAODVertex *secVert,
 202                                    AliAODv0 *v0,
 203                                    Double_t dca,
 204                                    Bool_t &okCascades) const;
 205
 206   AliAODVertex* PrimaryVertex(const TObjArray *trkArray=0x0,AliVEvent *event=0x0) const;
 207   AliAODVertex* ReconstructSecondaryVertex(TObjArray *trkArray,Double_t &dispersion,Bool_t useTRefArray=kTRUE) const;
 208   Bool_t SelectInvMass(Int_t decay,Int_t nprongs,
 209                        Double_t *px,Double_t *py,Double_t *pz) const;
 210   Bool_t SelectInvMass(TObjArray *trkArray) const;
 211   void   SelectTracksAndCopyVertex(const AliVEvent *event,Int_t trkEntries,
 212                                    TObjArray &seleTrksArray,Int_t &nSeleTrks,
 213                                    UChar_t *seleFlags,Int_t *evtNumber);
 214   Bool_t SingleTrkCuts(AliESDtrack *trk,Bool_t &okDisplaced,Bool_t &okSoftPi) const;
 215
 216   void   SetSelectionBitForPID(AliRDHFCuts *cuts,AliAODRecoDecayHF *rd);
 217
 218   AliAODv0* TransformESDv0toAODv0(AliESDv0 *esdv0,
 219                                   TObjArray *twoTrackArrayV0);
 220
 221   //
 222   ClassDef(AliAnalysisVertexingHF,18);  // Reconstruction of HF decay candidates
 223 };
 224
 225
 226 #endif
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