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