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
  11 //  Contact: andrea.dainese@lnl.infn.it
  12 //-------------------------------------------------------------------------
  13
  14 #include <TNamed.h>
  15 #include <TTree.h>
  16 #include "AliESDEvent.h"
  17 #include "AliESDVertex.h"
  18 #include "AliAODVertex.h"
  19 #include "AliAODRecoDecayHF.h"
  20 #include "AliAODRecoDecayHF2Prong.h"
  21 #include "AliAODRecoDecayHF3Prong.h"
  22 #include "AliAODRecoDecayHF4Prong.h"
  23
  24 //-----------------------------------------------------------------------------
  25 class AliAnalysisVertexingHF : public TNamed {
  26  public:
  27   //
  28   AliAnalysisVertexingHF();
  29   AliAnalysisVertexingHF(const AliAnalysisVertexingHF& source);
  30   AliAnalysisVertexingHF& operator=(const AliAnalysisVertexingHF& source);
  31   virtual ~AliAnalysisVertexingHF();
  32
  33   void FindCandidatesESDtoAOD(AliESDEvent *esd,
  34                               TClonesArray *aodVerticesHFTClArr,
  35                               TClonesArray *aodD0toKpiTClArr,
  36                               TClonesArray *aodJPSItoEleTClArr,
  37                               TClonesArray *aodCharm3ProngTClArr,
  38                               TClonesArray *aodCharm4ProngTClArr);
  39   void FindCandidates(AliESDEvent *esd,TTree *treeout[]);
  40   AliAODRecoDecayHF2Prong* Make2Prong(TObjArray *twoTrackArray1,AliESDEvent *esd,
  41                                      AliESDVertex *vertexp1n1,Double_t dcap1n1,
  42                                      Bool_t &okD0,Bool_t &okJPSI) const;
  43   AliAODRecoDecayHF3Prong* Make3Prong(TObjArray *threeTrackArray,AliESDEvent *esd,
  44                                      AliESDVertex *vertexp1n1,
  45                                      AliESDVertex *vertexp2n1,
  46                                      Double_t dcap1n1,Double_t dcap2n1,Double_t dcap1p2,
  47                                      Bool_t &ok3Prong) const;
  48   AliAODRecoDecayHF4Prong* Make4Prong(TObjArray *fourTrackArray,AliESDEvent *esd,
  49                                AliESDVertex *vertexp1n1,
  50                                AliESDVertex *vertexp2n1,
  51                                Double_t dcap1n1,Double_t dcap1n2,
  52                                Double_t dcap2n1,
  53                                Bool_t &ok4Prong) const;
  54
  55
  56   void SetDebug(Int_t debug=0) {fDebug=debug;}
  57   void PrintStatus() const;
  58   void SetUseTRef() { fUseTRef=kTRUE; }
  59   void SetSecVtxWithKF() { fSecVtxWithKF=kTRUE; }
  60   void SetD0toKpiOn() { fD0toKpi=kTRUE; }
  61   void SetD0toKpiOff() { fD0toKpi=kFALSE; }
  62   void SetJPSItoEleOn() { fJPSItoEle=kTRUE; }
  63   void SetJPSItoEleOff() { fJPSItoEle=kFALSE; }
  64   void Set3ProngOn() { f3Prong=kTRUE; }
  65   void Set3ProngOff() { f3Prong=kFALSE; }
  66   void Set4ProngOn() { f4Prong=kTRUE; }
  67   void Set4ProngOff() { f4Prong=kFALSE; }
  68   Bool_t GetD0toKpi() { return fD0toKpi; }
  69   Bool_t GetJPSItoEle() { return fJPSItoEle; }
  70   Bool_t Get3Prong() { return f3Prong; }
  71   Bool_t Get4Prong() { return f4Prong; }
  72   void SetRecoPrimVtxSkippingTrks()
  73     { fRecoPrimVtxSkippingTrks=kTRUE; fRmTrksFromPrimVtx=kFALSE;}
  74   void SetRmTrksFromPrimVtx()
  75     {fRmTrksFromPrimVtx=kTRUE; fRecoPrimVtxSkippingTrks=kFALSE; }
  76   void SetITSrefitRequired() { fITSrefit=kTRUE; }
  77   void SetITSrefitNotRequired() { fITSrefit=kFALSE; }
  78   void SetBothSPDRequired() { fBothSPD=kTRUE; }
  79   void SetBothSPDNotRequired() {fBothSPD=kFALSE;}
  80   void SetMinITSCls(Int_t n=6) { fMinITSCls=n; }
  81   void SetMinPtCut(Double_t pt=0.) { fMinPtCut=pt; }
  82   void SetMind0Cut(Double_t d0=0.) { fMind0rphiCut=d0; }
  83   void SetD0toKpiCuts(Double_t cut0=1000.,Double_t cut1=100000.,
  84                       Double_t cut2=1.1,Double_t cut3=0.,Double_t cut4=0.,
  85                       Double_t cut5=100000.,Double_t cut6=100000.,
  86                       Double_t cut7=100000000.,Double_t cut8=-1.1);
  87   void SetD0toKpiCuts(const Double_t cuts[9]);
  88   void SetBtoJPSICuts(Double_t cut0=1000.,Double_t cut1=100000.,
  89                       Double_t cut2=1.1,Double_t cut3=0.,Double_t cut4=0.,
  90                       Double_t cut5=100000.,Double_t cut6=100000.,
  91                       Double_t cut7=100000000.,Double_t cut8=-1.1);
  92   void SetBtoJPSICuts(const Double_t cuts[9]);
  93   void SetDplusCuts(Double_t cut0=1000.,Double_t cut1=0.,
  94                     Double_t cut2=0.,Double_t cut3=0.,Double_t cut4=0.,
  95                     Double_t cut5=0.,Double_t cut6=10000000000.,
  96                     Double_t cut7=0.,Double_t cut8=0.,
  97                     Double_t cut9=-1.1,Double_t cut10=0.,
  98                     Double_t cut11=0.);
  99   void SetDplusCuts(const Double_t cuts[12]);
 100   void SetDsCuts(Double_t cut0=0.);
 101   void SetDsCuts(const Double_t cuts[1]);
 102   void SetLcCuts(Double_t cut0=0.);
 103   void SetLcCuts(const Double_t cuts[1]);
 104   //
 105  private:
 106   //
 107   Double_t fBzkG; // z componenent of field in kG
 108
 109   Bool_t fSecVtxWithKF; // if kTRUE use KF vertexer, else AliVertexerTracks
 110
 111   Bool_t fUseTRef;      // use TRef to store in the AOD
 112
 113   Bool_t fRecoPrimVtxSkippingTrks; // flag for primary vertex reco on the fly
 114                                    // for each candidate, w/o its daughters
 115   Bool_t fRmTrksFromPrimVtx; // flag for fast removal of daughters from
 116                              // the primary vertex
 117
 118   AliESDVertex *fV1; // primary vertex
 119
 120   Int_t  fDebug; // enable verbose mode
 121
 122   // flag to enable candidates production
 123   Bool_t fD0toKpi;
 124   Bool_t fJPSItoEle;
 125   Bool_t f3Prong;
 126   Bool_t f4Prong;
 127
 128   // single-track cuts
 129   Bool_t   fITSrefit;   // require kITSrefit
 130   Bool_t   fBothSPD;    // require both SPD layers
 131   Int_t    fMinITSCls;  // minimum number of ITS clusters
 132   Double_t fMinPtCut;   // minimum track pt [GeV/c]
 133   Double_t fMind0rphiCut;  // minimum track |rphi impact parameter| [cm]
 134   // candidates cuts
 135   Double_t fD0toKpiCuts[9]; // cuts on D0->Kpi candidates
 136                   // (to be passed to AliAODRecoDecayHF2Prong::SelectD0())
 137                           // 0 = inv. mass half width [GeV]
 138                           // 1 = dca [cm]
 139                           // 2 = cosThetaStar
 140                           // 3 = pTK [GeV/c]
 141                           // 4 = pTPi [GeV/c]
 142                           // 5 = d0K [cm]   upper limit!
 143                           // 6 = d0Pi [cm]  upper limit!
 144                           // 7 = d0d0 [cm^2]
 145                           // 8 = cosThetaPoint
 146   Double_t fBtoJPSICuts[9]; // cuts on JPSI candidates
 147                   // (to be passed to AliAODRecoDecayHF2Prong::SelectBtoJPSI())
 148                           // 0 = inv. mass half width [GeV]
 149                           // 1 = dca [cm]
 150                           // 2 = cosThetaStar (negative electron)
 151                           // 3 = pTP [GeV/c]
 152                           // 4 = pTN [GeV/c]
 153                           // 5 = d0O [cm]   upper limit!
 154                           // 6 = d0N [cm]  upper limit!
 155                           // 7 = d0d0 [cm^2]
 156                           // 8 = cosThetaPoint
 157   Double_t fDplusCuts[12]; // cuts on Dplus candidates
 158                   // (to be passed to AliAODRecoDecayHF2Prong::SelectDplus())
 159                           // 0 = inv. mass half width [GeV]
 160                           // 1 = pTK [GeV/c]
 161                           // 2 = pTPi [GeV/c]
 162                           // 3 = d0K [cm]   lower limit!
 163                           // 4 = d0Pi [cm]  lower limit!
 164                           // 5 = dist12 (cm)
 165                           // 6 = sigmavert (cm)
 166                           // 7 = dist prim-sec (cm)
 167                           // 8 = pM=Max{pT1,pT2,pT3} (GeV/c)
 168                           // 9 = cosThetaPoint
 169                           // 10 = Sum d0^2 (cm^2)
 170                           // 11 = dca cut (cm)
 171   Double_t fDsCuts[1]; // cuts on Ds candidates
 172                        // (to be passed to AliAODRecoDecayHF2Prong::SelectDs())
 173                        // 0 = inv. mass half width [GeV]
 174   Double_t fLcCuts[1]; // cuts on Lambdac candidates
 175                        // (to be passed to AliAODRecoDecayHF2Prong::SelectLc())
 176                        // 0 = inv. mass half width [GeV]
 177
 178   //
 179   AliESDVertex* OwnPrimaryVertex(Int_t ntrks,TObjArray *trkArray,AliESDEvent *esd) const;
 180   Bool_t SelectInvMass(Int_t decay,Int_t nprongs,
 181                        Double_t *px,Double_t *py,Double_t *pz) const;
 182   void SelectTracks(AliESDEvent *esd,
 183                     TObjArray &trksP,Int_t &nTrksP,
 184                     TObjArray &trksN,Int_t &nTrksN) const;
 185   void SetPrimaryVertex(AliESDVertex* v1) { fV1 = v1; }
 186   Bool_t SingleTrkCuts(AliESDtrack& trk) const;
 187   AliESDVertex* ReconstructSecondaryVertex(TObjArray *trkArray) const;
 188   //
 189   ClassDef(AliAnalysisVertexingHF,2)  // Reconstruction of HF decay candidates
 190 };
 191
 192
 193 #endif
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