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 /* $Id$ */
   7
   8 //-------------------------------------------------------------------------
   9 //                      Class AliAnalysisVertexingHF
  10 //            Reconstruction of heavy-flavour decay candidates
  11 //
  12 //  Origin: E.Bruna, G.E.Bruno, A.Dainese, F.Prino, R.Romita, X.M.Zhang
  13 //  Contact: andrea.dainese@pd.infn.it
  14 //-------------------------------------------------------------------------
  15
  16 #include <TNamed.h>
  17
  18 class TList;
  19 class AliESDVertex;
  20 class AliAODRecoDecay;
  21 class AliAODRecoDecayHF;
  22 class AliAODRecoDecayHF2Prong;
  23 class AliAODRecoDecayHF3Prong;
  24 class AliAODRecoDecayHF4Prong;
  25 class AliAODRecoCascadeHF;
  26 class AliAnalysisFilter;
  27 class AliRDHFCuts;
  28 class AliRDHFCutsD0toKpi;
  29 class AliRDHFCutsJpsitoee;
  30 class AliRDHFCutsDplustoKpipi;
  31 class AliRDHFCutsDstoKKpi;
  32 class AliRDHFCutsLctopKpi;
  33 class AliRDHFCutsLctoV0;
  34 class AliRDHFCutsD0toKpipipi;
  35 class AliRDHFCutsDStartoKpipi;
  36 class AliESDtrack;
  37 class AliVEvent;
  38 class AliAODVertex;
  39 class AliESDv0;
  40 class AliAODv0;
  41
  42 //-----------------------------------------------------------------------------
  43 class AliAnalysisVertexingHF : public TNamed {
  44  public:
  45   //
  46   AliAnalysisVertexingHF();
  47   AliAnalysisVertexingHF(const AliAnalysisVertexingHF& source);
  48   AliAnalysisVertexingHF& operator=(const AliAnalysisVertexingHF& source);
  49   virtual ~AliAnalysisVertexingHF();
  50
  51   void FindCandidates(AliVEvent *event,
  52                       TClonesArray *aodVerticesHFTClArr,
  53                       TClonesArray *aodD0toKpiTClArr,
  54                       TClonesArray *aodJPSItoEleTClArr,
  55                       TClonesArray *aodCharm3ProngTClArr,
  56                       TClonesArray *aodCharm4ProngTClArr,
  57                       TClonesArray *aodDstarTClArr,
  58                       TClonesArray *aodCascadesTClArr,
  59                       TClonesArray *aodLikeSign2ProngTClArr,
  60                       TClonesArray *aodLikeSign3ProngTClArr);
  61
  62   TList* FillListOfCuts();
  63   void FixReferences(AliAODEvent *aod);
  64   void PrintStatus() const;
  65   void SetSecVtxWithKF() { fSecVtxWithKF=kTRUE; }
  66   void SetD0toKpiOn() { fD0toKpi=kTRUE; }
  67   void SetD0toKpiOff() { fD0toKpi=kFALSE; }
  68   void SetJPSItoEleOn() { fJPSItoEle=kTRUE; }
  69   void SetJPSItoEleOff() { fJPSItoEle=kFALSE; }
  70   void Set3ProngOn() { f3Prong=kTRUE; }
  71   void Set3ProngOff() { f3Prong=kFALSE; }
  72   void Set4ProngOn() { f4Prong=kTRUE; }
  73   void Set4ProngOff() { f4Prong=kFALSE; }
  74   void SetDstarOn() { fDstar=kTRUE; }
  75   void SetDstarOff() { fDstar=kFALSE; }
  76   void SetCascadesOn() { fCascades=kTRUE; }
  77   void SetCascadesOff() { fCascades=kFALSE; }
  78   void SetLikeSignOn() { fLikeSign=kTRUE; }
  79   void SetLikeSignOff() {fLikeSign=kFALSE; fLikeSign3prong=kFALSE;}
  80   void SetLikeSign3prongOn() { fLikeSign=kTRUE; fLikeSign3prong=kTRUE; }
  81   void SetLikeSign3prongOff() { fLikeSign3prong=kFALSE; }
  82   void SetMixEventOn() { fMixEvent=kTRUE; }
  83   void SetMixEventOff() { fMixEvent=kFALSE; }
  84   void SetInputAOD() { fInputAOD=kTRUE; }
  85   Bool_t GetD0toKpi() const { return fD0toKpi; }
  86   Bool_t GetJPSItoEle() const { return fJPSItoEle; }
  87   Bool_t Get3Prong() const { return f3Prong; }
  88   Bool_t Get4Prong() const { return f4Prong; }
  89   Bool_t GetDstar()  const { return fDstar; }
  90   Bool_t GetCascades() const { return fCascades; }
  91   Bool_t GetLikeSign() const { return fLikeSign; }
  92   Bool_t GetLikeSign3prong() const { return fLikeSign3prong; }
  93   Bool_t GetMixEvent() const { return fMixEvent; }
  94   Bool_t GetInputAOD() const { return fInputAOD; }
  95   Bool_t GetRecoPrimVtxSkippingTrks() const {return fRecoPrimVtxSkippingTrks;}
  96   Bool_t GetRmTrksFromPrimVtx() const {return fRmTrksFromPrimVtx;}
  97   void SetFindVertexForDstar(Bool_t vtx=kTRUE) { fFindVertexForDstar=vtx; }
  98   void SetFindVertexForCascades(Bool_t vtx=kTRUE) { fFindVertexForCascades=vtx; }
  99   void SetRecoPrimVtxSkippingTrks()
 100     { fRecoPrimVtxSkippingTrks=kTRUE; fRmTrksFromPrimVtx=kFALSE;}
 101   void UnsetRecoPrimVtxSkippingTrks()
 102     { fRecoPrimVtxSkippingTrks=kFALSE; fRmTrksFromPrimVtx=kFALSE;}
 103   void SetRmTrksFromPrimVtx()
 104     {fRmTrksFromPrimVtx=kTRUE; fRecoPrimVtxSkippingTrks=kFALSE; }
 105   void SetTrackFilter(AliAnalysisFilter* trackF) { fTrackFilter = trackF; }
 106   void SetTrackFilterSoftPi(AliAnalysisFilter* trackF) { fTrackFilterSoftPi = trackF; }
 107   AliAnalysisFilter* GetTrackFilter() const { return fTrackFilter; }
 108   AliAnalysisFilter* GetTrackFilterSoftPi() const { return fTrackFilterSoftPi; }
 109   void SetCutsD0toKpi(AliRDHFCutsD0toKpi* cuts) { fCutsD0toKpi = cuts; }
 110   AliRDHFCutsD0toKpi* GetCutsD0toKpi() const { return fCutsD0toKpi; }
 111   void SetCutsJpsitoee(AliRDHFCutsJpsitoee* cuts) { fCutsJpsitoee = cuts; }
 112   AliRDHFCutsJpsitoee* GetCutsJpsitoee() const { return fCutsJpsitoee; }
 113   void SetCutsDplustoKpipi(AliRDHFCutsDplustoKpipi* cuts) { fCutsDplustoKpipi = cuts; }
 114   AliRDHFCutsDplustoKpipi* GetCutsDplustoKpipi() const { return fCutsDplustoKpipi; }
 115   void SetCutsDstoKKpi(AliRDHFCutsDstoKKpi* cuts) { fCutsDstoKKpi = cuts; }
 116   AliRDHFCutsDstoKKpi* GetCutsDstoKKpi() const { return fCutsDstoKKpi; }
 117   void SetCutsLctopKpi(AliRDHFCutsLctopKpi* cuts) { fCutsLctopKpi = cuts; }
 118   AliRDHFCutsLctopKpi* GetCutsLctopKpi() const { return fCutsLctopKpi; }
 119   void SetCutsLctoV0(AliRDHFCutsLctoV0* cuts) { fCutsLctoV0 = cuts; }
 120   AliRDHFCutsLctoV0* GetCutsLctoV0() const { return fCutsLctoV0; }
 121   void SetCutsD0toKpipipi(AliRDHFCutsD0toKpipipi* cuts) { fCutsD0toKpipipi = cuts; }
 122   AliRDHFCutsD0toKpipipi* GetCutsD0toKpipipi() const { return fCutsD0toKpipipi; }
 123   void SetCutsDStartoKpipi(AliRDHFCutsDStartoKpipi* cuts) { fCutsDStartoKpipi = cuts; }
 124   AliRDHFCutsDStartoKpipi* GetCutsDStartoKpipi() const { return fCutsDStartoKpipi; }
 125   void SetMassCutBeforeVertexing(Bool_t flag) { fMassCutBeforeVertexing=flag; }
 126
 127   //
 128  private:
 129   //
 130   enum { kBitDispl = 0, kBitSoftPi = 1 };
 131
 132   Bool_t fInputAOD; // input from AOD (kTRUE) or ESD (kFALSE)
 133   Int_t fAODMapSize; // size of fAODMap
 134   Int_t *fAODMap; //[fAODMapSize] map between index and ID for AOD tracks
 135
 136   Double_t fBzkG; // z componenent of field in kG
 137
 138   Bool_t fSecVtxWithKF; // if kTRUE use KF vertexer, else AliVertexerTracks
 139
 140   Bool_t fRecoPrimVtxSkippingTrks; // flag for primary vertex reco on the fly
 141                                    // for each candidate, w/o its daughters
 142   Bool_t fRmTrksFromPrimVtx; // flag for fast removal of daughters from
 143                              // the primary vertex
 144
 145   AliESDVertex *fV1; // primary vertex
 146
 147   // flag to enable candidates production
 148   Bool_t fD0toKpi;   // D0->Kpi
 149   Bool_t fJPSItoEle; // Jpsi->ee
 150   Bool_t f3Prong;    // D+,Ds,Lc
 151   Bool_t f4Prong;    // D0->Kpipipi
 152   Bool_t fDstar;     // D*->D0pi
 153   Bool_t fCascades;  // cascades, Lc --> v0+track
 154   Bool_t fLikeSign;  // Like-sign pairs
 155   Bool_t fLikeSign3prong;  // Like-sign triplets
 156   Bool_t fMixEvent; // event mixing
 157
 158   // single-track cuts
 159   AliAnalysisFilter *fTrackFilter; //  Track Filter for displaced vertices
 160   AliAnalysisFilter *fTrackFilterSoftPi; //  Track Filter for D* soft pion
 161   // candidates cuts
 162   AliRDHFCutsD0toKpi *fCutsD0toKpi; // D0->Kpi cuts
 163   AliRDHFCutsJpsitoee *fCutsJpsitoee; // J/psi->ee cuts
 164   AliRDHFCutsDplustoKpipi *fCutsDplustoKpipi; // D+->Kpipi cuts
 165   AliRDHFCutsDstoKKpi *fCutsDstoKKpi; // Ds->KKpi cuts
 166   AliRDHFCutsLctopKpi *fCutsLctopKpi; // Lc->pKpi cuts
 167   AliRDHFCutsLctoV0 *fCutsLctoV0; // Lc --> v0 + bachelor cuts
 168   AliRDHFCutsD0toKpipipi *fCutsD0toKpipipi; // D0->Kpipipi cuts
 169   AliRDHFCutsDStartoKpipi *fCutsDStartoKpipi; // Dstar->D0pi cuts
 170
 171   TList *fListOfCuts;    // pointer to list of cuts for output file
 172   Bool_t fFindVertexForDstar; // reconstruct a secondary vertex or assume it's from the primary vertex
 173   Bool_t fFindVertexForCascades;  // reconstruct a secondary vertex or assume it's from the primary vertex
 174   Bool_t fMassCutBeforeVertexing; // to go faster in PbPb
 175   // dummies for invariant mass calculation
 176   AliAODRecoDecay *fMassCalc2; // for 2 prong
 177   AliAODRecoDecay *fMassCalc3; // for 3 prong
 178   AliAODRecoDecay *fMassCalc4; // for 4 prong
 179
 180   Int_t fnTrksTotal;
 181   Int_t fnSeleTrksTotal;
 182
 183   //
 184   void AddRefs(AliAODVertex *v,AliAODRecoDecayHF *rd,const AliVEvent *event,
 185                const TObjArray *trkArray) const;
 186   void AddDaughterRefs(AliAODVertex *v,const AliVEvent *event,
 187                        const TObjArray *trkArray) const;
 188   AliAODRecoDecayHF2Prong* Make2Prong(TObjArray *twoTrackArray1,AliVEvent *event,
 189                                       AliAODVertex *secVert,Double_t dcap1n1,
 190                                       Bool_t &okD0,Bool_t &okJPSI,Bool_t &okD0fromDstar) const;
 191   AliAODRecoDecayHF3Prong* Make3Prong(TObjArray *threeTrackArray,AliVEvent *event,
 192                                       AliAODVertex *secVert,
 193                                       Double_t dispersion,
 194                                       const AliAODVertex *vertexp1n1,
 195                                       const AliAODVertex *vertexp2n1,
 196                                       Double_t dcap1n1,Double_t dcap2n1,Double_t dcap1p2,
 197                                       Bool_t &ok3Prong) const;
 198   AliAODRecoDecayHF4Prong* Make4Prong(TObjArray *fourTrackArray,AliVEvent *event,
 199                                       AliAODVertex *secVert,
 200                                       const AliAODVertex *vertexp1n1,
 201                                       const AliAODVertex *vertexp1n1p2,
 202                                       Double_t dcap1n1,Double_t dcap1n2,
 203                                       Double_t dcap2n1,Double_t dcap2n2,
 204                                       Bool_t &ok4Prong) const;
 205   AliAODRecoCascadeHF* MakeCascade(TObjArray *twoTrackArray,AliVEvent *event,
 206                                    AliAODVertex *secVert,
 207                                    AliAODRecoDecayHF2Prong *rd2Prong,
 208                                    Double_t dca,
 209                                    Bool_t &okDstar) const;
 210   AliAODRecoCascadeHF* MakeCascade(TObjArray *twoTrackArray,AliVEvent *event,
 211                                    AliAODVertex *secVert,
 212                                    AliAODv0 *v0,
 213                                    Double_t dca,
 214                                    Bool_t &okCascades) const;
 215
 216   AliAODVertex* PrimaryVertex(const TObjArray *trkArray=0x0,AliVEvent *event=0x0) const;
 217   AliAODVertex* ReconstructSecondaryVertex(TObjArray *trkArray,Double_t &dispersion,Bool_t useTRefArray=kTRUE) const;
 218   Bool_t SelectInvMassAndPt(Int_t decay,Int_t nprongs,
 219                        Double_t *px,Double_t *py,Double_t *pz) const;
 220   Bool_t SelectInvMassAndPt(TObjArray *trkArray) const;
 221   void   SelectTracksAndCopyVertex(const AliVEvent *event,Int_t trkEntries,
 222                                    TObjArray &seleTrksArray,
 223                                    TObjArray &tracksAtVertex,
 224                                    Int_t &nSeleTrks,
 225                                    UChar_t *seleFlags,Int_t *evtNumber);
 226   void SetParametersAtVertex(AliESDtrack* esdt, AliExternalTrackParam* extpar) const;
 227
 228   Bool_t SingleTrkCuts(AliESDtrack *trk,Bool_t &okDisplaced,Bool_t &okSoftPi) const;
 229
 230   void   SetSelectionBitForPID(AliRDHFCuts *cuts,AliAODRecoDecayHF *rd,Int_t bit);
 231
 232   AliAODv0* TransformESDv0toAODv0(AliESDv0 *esdv0,
 233                                   TObjArray *twoTrackArrayV0);
 234
 235   //
 236   ClassDef(AliAnalysisVertexingHF,19);  // Reconstruction of HF decay candidates
 237 };
 238
 239
 240 #endif
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