PWG3/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
  11 //-------------------------------------------------------------------------
  12
  13 #include <TNamed.h>
  14 #include <TTree.h>
  15 #include "AliESDEvent.h"
  16 #include "AliESDVertex.h"
  17 #include "AliAODVertex.h"
  18 #include "AliAODRecoDecayHF.h"
  19 #include "AliAODRecoDecayHF2Prong.h"
  20 #include "AliAODRecoDecayHF3Prong.h"
  21 #include "AliAODRecoDecayHF4Prong.h"
  22
  23 //-----------------------------------------------------------------------------
  24 class AliAnalysisVertexingHF : public TNamed {
  25  public:
  26   //
  27   AliAnalysisVertexingHF();
  28   AliAnalysisVertexingHF(const AliAnalysisVertexingHF& source);
  29   AliAnalysisVertexingHF& operator=(const AliAnalysisVertexingHF& source);
  30   virtual ~AliAnalysisVertexingHF();
  31
  32   void FindCandidates(AliESDEvent *esd,TTree treeout[]);
  33   AliAODRecoDecayHF2Prong* Make2Prong(TObjArray *twoTrackArray1,AliESDEvent *esd,
  34                                      AliESDVertex *vertexp1n1,Double_t dcap1n1,
  35                                      Bool_t &okD0,Bool_t &okJPSI) const;
  36   AliAODRecoDecayHF3Prong* Make3Prong(TObjArray *threeTrackArray,AliESDEvent *esd,
  37                                      AliESDVertex *vertexp1n1,
  38                                      AliESDVertex *vertexp2n1,
  39                                      Double_t dcap1n1,Double_t dcap2n1,Double_t dcap1p2,
  40                                      Bool_t &ok3Prong) const;
  41   AliAODRecoDecayHF4Prong* Make4Prong(TObjArray *fourTrackArray,AliESDEvent *esd,
  42                                AliESDVertex *vertexp1n1,
  43                                AliESDVertex *vertexp2n1,
  44                                Double_t dcap1n1,Double_t dcap1n2,
  45                                Double_t dcap2n1,
  46                                Bool_t &ok4Prong) const;
  47
  48
  49   void SetDebug(Int_t debug=0) {fDebug=debug;}
  50   void PrintStatus() const;
  51   void SetSecVtxWithKF() { fSecVtxWithKF=kTRUE; }
  52   void SetD0toKpiOn() { fD0toKpi=kTRUE; }
  53   void SetD0toKpiOff() { fD0toKpi=kFALSE; }
  54   void SetJPSItoEleOn() { fJPSItoEle=kTRUE; }
  55   void SetJPSItoEleOff() { fJPSItoEle=kFALSE; }
  56   void Set3ProngOn() { f3Prong=kTRUE; }
  57   void Set3ProngOff() { f3Prong=kFALSE; }
  58   void Set4ProngOn() { f4Prong=kTRUE; }
  59   void Set4ProngOff() { f4Prong=kFALSE; }
  60   void SetRecoPrimVtxSkippingTrks()
  61     { fRecoPrimVtxSkippingTrks=kTRUE; fRmTrksFromPrimVtx=kFALSE;}
  62   void SetRmTrksFromPrimVtx()
  63     {fRmTrksFromPrimVtx=kTRUE; fRecoPrimVtxSkippingTrks=kFALSE; }
  64   void SetITSrefitRequired() { fITSrefit=kTRUE; }
  65   void SetITSrefitNotRequired() { fITSrefit=kFALSE; }
  66   void SetBothSPDRequired() { fBothSPD=kTRUE; }
  67   void SetBothSPDNotRequired() {fBothSPD=kFALSE;}
  68   void SetMinITSCls(Int_t n=6) { fMinITSCls=n; }
  69   void SetMinPtCut(Double_t pt=0.) { fMinPtCut=pt; }
  70   void SetMind0Cut(Double_t d0=0.) { fMind0rphiCut=d0; }
  71   void SetD0toKpiCuts(Double_t cut0=1000.,Double_t cut1=100000.,
  72                       Double_t cut2=1.1,Double_t cut3=0.,Double_t cut4=0.,
  73                       Double_t cut5=100000.,Double_t cut6=100000.,
  74                       Double_t cut7=100000000.,Double_t cut8=-1.1);
  75   void SetD0toKpiCuts(const Double_t cuts[9]);
  76   void SetBtoJPSICuts(Double_t cut0=1000.,Double_t cut1=100000.,
  77                       Double_t cut2=1.1,Double_t cut3=0.,Double_t cut4=0.,
  78                       Double_t cut5=100000.,Double_t cut6=100000.,
  79                       Double_t cut7=100000000.,Double_t cut8=-1.1);
  80   void SetBtoJPSICuts(const Double_t cuts[9]);
  81   void SetDplusCuts(Double_t cut0=1000.,Double_t cut1=0.,
  82                     Double_t cut2=0.,Double_t cut3=0.,Double_t cut4=0.,
  83                     Double_t cut5=0.,Double_t cut6=10000000000.,
  84                     Double_t cut7=0.,Double_t cut8=0.,
  85                     Double_t cut9=-1.1,Double_t cut10=0.,
  86                     Double_t cut11=0.);
  87   void SetDplusCuts(const Double_t cuts[12]);
  88   void SetDsCuts(Double_t cut0=0.);
  89   void SetDsCuts(const Double_t cuts[1]);
  90   void SetLcCuts(Double_t cut0=0.);
  91   void SetLcCuts(const Double_t cuts[1]);
  92   //
  93  private:
  94   //
  95   Double_t fBzkG; // z componenent of field in kG
  96
  97   Bool_t fSecVtxWithKF; // if kTRUE use KF vertexer, else AliVertexerTracks
  98
  99   Bool_t fRecoPrimVtxSkippingTrks; // flag for primary vertex reco on the fly
 100                                    // for each candidate, w/o its daughters
 101   Bool_t fRmTrksFromPrimVtx; // flag for fast removal of daughters from
 102                              // the primary vertex
 103
 104   AliESDVertex *fV1; // primary vertex
 105
 106   Int_t  fDebug; // enable verbose mode
 107
 108   // flag to enable candidates production
 109   Bool_t fD0toKpi;
 110   Bool_t fJPSItoEle;
 111   Bool_t f3Prong;
 112   Bool_t f4Prong;
 113
 114   // single-track cuts
 115   Bool_t   fITSrefit;   // require kITSrefit
 116   Bool_t   fBothSPD;    // require both SPD layers
 117   Int_t    fMinITSCls;  // minimum number of ITS clusters
 118   Double_t fMinPtCut;   // minimum track pt [GeV/c]
 119   Double_t fMind0rphiCut;  // minimum track |rphi impact parameter| [cm]
 120   // candidates cuts
 121   Double_t fD0toKpiCuts[9]; // cuts on D0->Kpi candidates
 122                   // (to be passed to AliAODRecoDecayHF2Prong::SelectD0())
 123                           // 0 = inv. mass half width [GeV]
 124                           // 1 = dca [cm]
 125                           // 2 = cosThetaStar
 126                           // 3 = pTK [GeV/c]
 127                           // 4 = pTPi [GeV/c]
 128                           // 5 = d0K [cm]   upper limit!
 129                           // 6 = d0Pi [cm]  upper limit!
 130                           // 7 = d0d0 [cm^2]
 131                           // 8 = cosThetaPoint
 132   Double_t fBtoJPSICuts[9]; // cuts on JPSI candidates
 133                   // (to be passed to AliAODRecoDecayHF2Prong::SelectBtoJPSI())
 134                           // 0 = inv. mass half width [GeV]
 135                           // 1 = dca [cm]
 136                           // 2 = cosThetaStar (negative electron)
 137                           // 3 = pTP [GeV/c]
 138                           // 4 = pTN [GeV/c]
 139                           // 5 = d0O [cm]   upper limit!
 140                           // 6 = d0N [cm]  upper limit!
 141                           // 7 = d0d0 [cm^2]
 142                           // 8 = cosThetaPoint
 143   Double_t fDplusCuts[12]; // cuts on Dplus candidates
 144                   // (to be passed to AliAODRecoDecayHF2Prong::SelectDplus())
 145                           // 0 = inv. mass half width [GeV]
 146                           // 1 = pTK [GeV/c]
 147                           // 2 = pTPi [GeV/c]
 148                           // 3 = d0K [cm]   lower limit!
 149                           // 4 = d0Pi [cm]  lower limit!
 150                           // 5 = dist12 (cm)
 151                           // 6 = sigmavert (cm)
 152                           // 7 = dist prim-sec (cm)
 153                           // 8 = pM=Max{pT1,pT2,pT3} (GeV/c)
 154                           // 9 = cosThetaPoint
 155                           // 10 = Sum d0^2 (cm^2)
 156                           // 11 = dca cut (cm)
 157   Double_t fDsCuts[1]; // cuts on Ds candidates
 158                        // (to be passed to AliAODRecoDecayHF2Prong::SelectDs())
 159                        // 0 = inv. mass half width [GeV]
 160   Double_t fLcCuts[1]; // cuts on Lambdac candidates
 161                        // (to be passed to AliAODRecoDecayHF2Prong::SelectLc())
 162                        // 0 = inv. mass half width [GeV]
 163
 164   //
 165   AliESDVertex* OwnPrimaryVertex(Int_t ntrks,TObjArray *trkArray,AliESDEvent *esd) const;
 166   Bool_t SelectInvMass(Int_t decay,Int_t nprongs,
 167                        Double_t *px,Double_t *py,Double_t *pz) const;
 168   void SelectTracks(AliESDEvent *esd,
 169                     TObjArray &trksP,Int_t &nTrksP,
 170                     TObjArray &trksN,Int_t &nTrksN) const;
 171   void SetPrimaryVertex(AliESDVertex* v1) { fV1 = v1; }
 172   Bool_t SingleTrkCuts(AliESDtrack& trk) const;
 173   AliESDVertex* ReconstructSecondaryVertex(TObjArray *trkArray) const;
 174   //
 175   ClassDef(AliAnalysisVertexingHF,2)  // Reconstruction of HF decay candidates
 176 };
 177
 178
 179 #endif
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