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