PWG3/vertexingHF/AliAODRecoDecayHF.h

   1 #ifndef ALIAODRECODECAYHF_H
   2 #define ALIAODRECODECAYHF_H
   3 /* Copyright(c) 1998-2006, ALICE Experiment at CERN, All rights reserved. *
   4  * See cxx source for full Copyright notice                               */
   5
   6 //***********************************************************
   7 // Class AliAODRecoDecayHF
   8 // base class for AOD reconstructed heavy-flavour decays
   9 // Author: A.Dainese, andrea.dainese@lnl.infn.it
  10 //***********************************************************
  11
  12 #include <TRef.h>
  13 #include <TList.h>
  14 #include "AliAODTrack.h"
  15 #include "AliAODRecoDecay.h"
  16
  17 class AliAODEvent;
  18 class AliRDHFCuts;
  19 class AliKFParticle;
  20
  21 class AliAODRecoDecayHF : public AliAODRecoDecay {
  22
  23  public:
  24
  25   AliAODRecoDecayHF();
  26   AliAODRecoDecayHF(AliAODVertex *vtx2,Int_t nprongs,Short_t charge,
  27                     Double_t *px,Double_t *py,Double_t *pz,
  28                     Double_t *d0,Double_t *d0err);
  29   AliAODRecoDecayHF(AliAODVertex *vtx2,Int_t nprongs,Short_t charge,
  30                     Double_t *d0,Double_t *d0err);
  31   AliAODRecoDecayHF(Double_t vtx1[3],Double_t vtx2[3],
  32                     Int_t nprongs,Short_t charge,
  33                     Double_t *px,Double_t *py,Double_t *pz,Double_t *d0);
  34   virtual ~AliAODRecoDecayHF();
  35
  36   AliAODRecoDecayHF(const AliAODRecoDecayHF& source);
  37   AliAODRecoDecayHF& operator=(const AliAODRecoDecayHF& source);
  38
  39
  40   // primary vertex
  41   void SetPrimaryVtxRef(TObject *vtx) { fEventPrimaryVtx = vtx; }
  42   AliAODVertex* GetPrimaryVtxRef() const { return (AliAODVertex*)(fEventPrimaryVtx.GetObject()); }
  43   void SetOwnPrimaryVtx(const AliAODVertex *vtx) { UnsetOwnPrimaryVtx(); fOwnPrimaryVtx = new AliAODVertex(*vtx);}
  44   void CheckOwnPrimaryVtx() const
  45     {if(!fOwnPrimaryVtx) printf("fOwnPrimaryVtx not set"); return;}
  46   AliAODVertex* GetOwnPrimaryVtx() const {return fOwnPrimaryVtx;}
  47   void GetOwnPrimaryVtx(Double_t vtx[3]) const
  48     {CheckOwnPrimaryVtx();fOwnPrimaryVtx->GetPosition(vtx);}
  49   void UnsetOwnPrimaryVtx() {if(fOwnPrimaryVtx) {delete fOwnPrimaryVtx; fOwnPrimaryVtx=0;} return;}
  50   AliAODVertex* GetPrimaryVtx() const { return (GetOwnPrimaryVtx() ? GetOwnPrimaryVtx() : GetPrimaryVtxRef()); }
  51   AliAODVertex* RemoveDaughtersFromPrimaryVtx(AliAODEvent *aod);
  52
  53
  54   // kinematics & topology
  55   Double_t DecayLength() const
  56     { return AliAODRecoDecay::DecayLength(GetPrimaryVtx());}
  57   Double_t DecayLengthError() const
  58     { return AliAODRecoDecay::DecayLengthError(GetPrimaryVtx());}
  59   Double_t NormalizedDecayLength() const
  60     { return AliAODRecoDecay::NormalizedDecayLength(GetPrimaryVtx());}
  61   Double_t DecayLengthXY() const
  62     { return AliAODRecoDecay::DecayLengthXY(GetPrimaryVtx());}
  63   Double_t DecayLengthXYError() const
  64     { return AliAODRecoDecay::DecayLengthXYError(GetPrimaryVtx());}
  65   Double_t NormalizedDecayLengthXY() const
  66     { return AliAODRecoDecay::NormalizedDecayLengthXY(GetPrimaryVtx());}
  67   Double_t Ct(UInt_t pdg) const
  68     { return AliAODRecoDecay::Ct(pdg,GetPrimaryVtx());}
  69   Double_t CosPointingAngle() const
  70     { return AliAODRecoDecay::CosPointingAngle(GetPrimaryVtx());}
  71   Double_t CosPointingAngleXY() const
  72     { return AliAODRecoDecay::CosPointingAngleXY(GetPrimaryVtx());}
  73   Double_t ImpParXY() const
  74     { return AliAODRecoDecay::ImpParXY(GetPrimaryVtx());}
  75   Double_t QtProngFlightLine(Int_t ip) const
  76     { return AliAODRecoDecay::QtProngFlightLine(ip,GetPrimaryVtx());}
  77   Double_t QlProngFlightLine(Int_t ip) const
  78     { return AliAODRecoDecay::QlProngFlightLine(ip,GetPrimaryVtx());}
  79
  80   // prongs
  81   Double_t Getd0errProng(Int_t ip) const {return fd0err[ip];}
  82   Double_t Normalizedd0Prong(Int_t ip) const
  83     {return Getd0Prong(ip)/Getd0errProng(ip);}
  84
  85   void SetProngIDs(Int_t nIDs,UShort_t *id);
  86   UShort_t GetProngID(Int_t ip) const
  87     {if(fProngID) {return fProngID[ip];} else {return 9999;}}
  88
  89   // ITS clustermap for daughters
  90   Bool_t DaughterHasPointOnITSLayer(Int_t dg,Int_t l) const;
  91
  92   // check if it is like-sign
  93   Bool_t IsLikeSign() const;
  94
  95   // list of cuts
  96   void SetListOfCutsRef(TObject *obj) {fListOfCuts=obj;}
  97   TList *GetListOfCuts() const {return (TList*)(fListOfCuts.GetObject());}
  98   AliRDHFCuts *GetCuts(const char* name) const;
  99
 100   // vertexing KF:
 101   AliKFParticle *ApplyVertexingKF(Int_t *iprongs,Int_t nprongs,Int_t *pdgs,
 102                                  Bool_t topoCostraint,Double_t bzkG,
 103                                  Double_t *mass) const;
 104
 105  protected:
 106
 107   AliAODVertex *fOwnPrimaryVtx; // primary vertex for this candidate
 108   TRef          fEventPrimaryVtx; // ref to primary vertex of the event
 109   TRef          fListOfCuts;  // ref to the list of analysis cuts
 110   Double_t     *fd0err;  //[fNProngs] error on prongs rphi impact param [cm]
 111   UShort_t     *fProngID;  //[fNProngs] track ID of daughters
 112
 113   ClassDef(AliAODRecoDecayHF,4)  // base class for AOD reconstructed heavy-flavour decays
 114 };
 115
 116 inline void AliAODRecoDecayHF::SetProngIDs(Int_t nIDs,UShort_t *id)
 117 {
 118   if(nIDs!=GetNProngs()) {
 119     printf("Wrong number of IDs, must be nProngs\n");
 120     return;
 121   }
 122   if(fProngID) delete [] fProngID;
 123   fProngID = new UShort_t[nIDs];
 124   for(Int_t i=0;i<nIDs;i++)
 125     fProngID[i] = id[i];
 126   return;
 127 }
 128
 129 inline Bool_t AliAODRecoDecayHF::IsLikeSign() const
 130 {
 131   // check if it is like-sign
 132
 133   Int_t ndg=GetNDaughters();
 134   if(!ndg) {
 135     printf("Daughters not available\n");
 136     return kFALSE;
 137   }
 138   Int_t chargeDg0 = ((AliAODTrack*)GetDaughter(0))->Charge();
 139
 140   for(Int_t i=1; i<ndg; i++) {
 141     if(chargeDg0!=((AliAODTrack*)GetDaughter(i))->Charge()) return kFALSE;
 142   }
 143
 144   return kTRUE;
 145 }
 146
 147 inline AliRDHFCuts *AliAODRecoDecayHF::GetCuts(const char* name) const
 148 {
 149   // returns the analysis cuts
 150
 151   TList *list = GetListOfCuts();
 152   if(!list) return 0;
 153
 154
 155   return (AliRDHFCuts*)list->FindObject(name);
 156 }
 157
 158 inline Bool_t AliAODRecoDecayHF::DaughterHasPointOnITSLayer(Int_t dg,Int_t l) const
 159 {
 160   // ITS clustermap for daughters
 161
 162   if(l<0 || l>5) {
 163     printf("ERROR: layer has to be in the range 0-5\n");
 164     return kFALSE;
 165   }
 166   AliAODTrack *t = (AliAODTrack*)GetDaughter(dg);
 167   if(!t) return kFALSE;
 168
 169   return TESTBIT(t->GetITSClusterMap(),l);
 170 }
 171
 172 #endif
 173