1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
16 // Secondary vertexing construction Class
17 // Construct secondary vertex from Beauty hadron with electron and
18 // hadrons, then apply selection criteria
21 #ifndef ALIHFESECVTX_H
22 #define ALIHFESECVTX_H
25 //#include <TObject.h>
28 #ifndef ROOT_THnSparse
29 #include <THnSparse.h>
41 class AliHFEtrackFilter;
46 //________________________________________________________________
47 class AliHFEsecVtx : public TObject {
51 AliHFEsecVtx(const AliHFEsecVtx &p); // copy constructor
52 AliHFEsecVtx &operator=(const AliHFEsecVtx &); // assignment operator
53 virtual ~AliHFEsecVtx();
55 void CreateHistograms(TList * const qaList);
57 void Process(AliVTrack *track);
59 Bool_t HasMCData() const { return TestBit(kHasMCData); };
60 Bool_t IsAODanalysis() const { return TestBit(kAODanalysis); };
61 Bool_t IsESDanalysis() const { return !TestBit(kAODanalysis); };
63 void SetHasMCData(Bool_t hasMCdata = kTRUE) { SetBit(kHasMCData,hasMCdata); };
64 void SetAODAnalysis() { SetBit(kAODanalysis, kTRUE); };
65 void SetESDAnalysis() { SetBit(kAODanalysis, kFALSE); };
66 void SetEvent(AliESDEvent* const ESD){fESD1=ESD;}; // set ESD pointer
67 void SetEventAOD(AliAODEvent* const AOD){fAOD1=AOD;}; // set ESD pointer
68 void SetMCEvent(AliMCEvent* const mcEvent){fMCEvent=mcEvent;}; // set stack pointer
69 void SetMCArray(TClonesArray* const mcarry){fMCArray=mcarry;} // set mcarray pointer
70 void SetUseMCPID(Bool_t usemcpid){fUseMCPID=usemcpid;};
73 Int_t GetMCPID(AliESDtrack *track); // return MC pid
74 Int_t GetMCPDG(AliVTrack *track); // return MC pid
75 Int_t GetPairOriginESD(AliESDtrack* track1, AliESDtrack* track2); // return pair origin as a pdg code
76 Int_t GetPairOriginAOD(AliAODTrack* track1, AliAODTrack* track2); // return pair origin as a pdg code
77 Int_t GetPairCode(const AliVTrack* const track1, const AliVTrack* const track2); // return corresponding pair code to pdg code
78 Int_t GetElectronSource(Int_t mclabel); // return origin of the electron
79 Int_t GetPDG(AliVTrack *track); // return pdg
80 void GetESDPID(AliESDtrack *track, Int_t &recpid, Double_t &recprob); //return esd pid likelihood
81 void GetPrimaryCondition();
82 void RecalcPrimvtx(Int_t nkftrk, Int_t * const, AliKFParticle * const); //recalculate primary vertex
84 TClonesArray *HFEpairs();
85 TClonesArray *HFEsecvtxs();
87 void AddHFEpairToArray(const AliHFEpairs* const pair);
88 void AddHFEsecvtxToArray(const AliHFEsecVtxs* const secvtx);
91 void InitHFEsecvtxs();
93 void DeleteHFEpairs();
94 void DeleteHFEsecvtxs();
96 Bool_t SingleTrackCut(AliESDtrack* track1) const; // single track cut
97 void PairAnalysis(AliVTrack* ESDtrack1, AliVTrack* ESDtrack2, Int_t index2); // do e-h analysis
98 void RunSECVTX(AliVTrack *track); // run secondary vertexing algorithm
100 void MakeContainer(); // make containers
104 void FindSECVTXCandid(AliVTrack *track);
105 void CalcSECVTXProperty(AliVTrack* track1, AliVTrack* track2, AliVTrack* track3); // calculated distinctive variables
106 void CalcSECVTXProperty(AliVTrack* track1, AliVTrack* track2, AliVTrack* track3, AliVTrack* track4); // calculated distinctive variables
108 void Fill4TrkSECVTX(AliVTrack* track, Int_t ipair, Int_t jpair, Int_t kpair);
109 void Fill3TrkSECVTX(AliVTrack* track, Int_t ipair, Int_t jpair);
110 void Fill2TrkSECVTX(AliVTrack* track, AliHFEpairs *pair);
114 kHasMCData = BIT(15), // bitset for mc data usage
115 kAODanalysis = BIT(16) // bitset for aod analysis
117 enum {kAll, kDirectCharm, kDirectBeauty, kBeautyCharm, kGamma, kPi0, kElse, kBeautyGamma, kBeautyPi0, kBeautyElse, kMisID}; // electron origin
118 enum {kCharm=4, kBeauty=5}; // quark flavor
120 AliHFEtrackFilter *fFilter; // filter Tracks to combine the signal track with
121 AliESDEvent* fESD1; // ESD pointer
122 AliAODEvent* fAOD1; // AOD pointer
123 AliMCEvent* fMCEvent; // MCEvent pointer
125 Bool_t fUseMCPID; // if use MC pid
127 TString fkSourceLabel[10]; // electron source label
129 Int_t fNparents; // number of heavy hadrons to be considered
130 Int_t fParentSelect[2][7]; // heavy hadron species
131 Double_t fPtRng[7]; // pt ranges to consider pt dependant dca cut
132 Double_t fDcaCut[6]; // pt dependant dca cut
134 Int_t fNoOfHFEpairs; // number of e-h pairs
135 Int_t fNoOfHFEsecvtxs; // number of secondary vertexes
136 Int_t fArethereSecVtx; // checker
138 TClonesArray *fHFEpairs; //! Array of pair
139 TClonesArray *fHFEsecvtxs; //! Array of secondary vertexes
140 TClonesArray *fMCArray; //! mc array pointer
142 Double_t fPVx; // primary vertex copy x
143 Double_t fPVy; // primary vertex copy y
144 Double_t fPVx2; // recalculated primary vertex x
145 Double_t fPVy2; // recalculated primary vertex y
146 Double_t fCosPhi; // cos of opening angle of two pair vertex
147 Double_t fSignedLxy; // signed Lxy of secondary vertex
148 Double_t fSignedLxy2; // signed Lxy of secondary vertex based on recalculated primary vertex
149 Double_t fKFchi2; // chi2 of secondary vertex
150 Double_t fInvmass; // invariant mass of secondary vertex
151 Double_t fInvmassSigma; // invariant mass sigma of secondary vertex
152 Double_t fKFip; // impact parameter of secondary vertex track
153 Double_t fKFip2; // impact parameter of secondary vertex track based on recalculated primary vertex
155 Int_t fNsectrk2prim; // # of secvtx tracks contributing to primvtx calculation
157 Double_t fVtxchi2Tightcut; // pair vertex chi2 cut
158 Double_t fVtxchi2Loosecut; // secvtx vertex chi2 cut
160 THnSparseF *fPairQA; // qa histos for pair analysis
161 THnSparseF *fSecvtxQA; // qa histos for secvtx
162 TList *fSecVtxList; // list for secondary vertexing outputs
164 ClassDef(AliHFEsecVtx,0);