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 */
6 //-------------------------------------------------------------------------
7 // Class AliAnalysisVertexingHF
8 // Reconstruction of heavy-flavour decay candidates
10 // Origin: E.Bruna, G.E.Bruno, A.Dainese, F.Prino, R.Romita
11 //-------------------------------------------------------------------------
15 #include "AliESDEvent.h"
16 #include "AliESDVertex.h"
17 #include "AliAODRecoDecayHF.h"
18 #include "AliAODRecoDecayHF2Prong.h"
19 #include "AliAODRecoDecayHF3Prong.h"
20 #include "AliAODRecoDecayHF4Prong.h"
22 //-----------------------------------------------------------------------------
23 class AliAnalysisVertexingHF : public TNamed {
26 AliAnalysisVertexingHF();
27 virtual ~AliAnalysisVertexingHF();
29 void FindCandidates(AliESDEvent *esd,TTree treeout[]);
30 AliAODRecoDecayHF2Prong* Make2Prong(TObjArray *twoTrackArray1,AliESDEvent *esd,
31 AliESDVertex *vertexp1n1,Double_t dcap1n1,
32 Bool_t &okD0,Bool_t &okJPSI) const;
33 AliAODRecoDecayHF3Prong* Make3Prong(TObjArray *threeTrackArray,AliESDEvent *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,AliESDEvent *esd,
39 AliESDVertex *vertexp1n1,
40 AliESDVertex *vertexp2n1,
41 Double_t dcap1n1,Double_t dcap1n2,
43 Bool_t &ok4Prong) const;
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.,
83 void SetDplusCuts(const Double_t cuts[12]);
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
92 AliESDVertex *fV1; // primary vertex
94 Int_t fDebug; // enable verbose mode
96 // flag to enable candidates production
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]
109 Double_t fD0toKpiCuts[9]; // cuts on D0->Kpi candidates
110 // (to be passed to AliAODRecoDecayHF2Prong::SelectD0())
111 // 0 = inv. mass half width [GeV]
116 // 5 = d0K [cm] upper limit!
117 // 6 = d0Pi [cm] upper limit!
120 Double_t fBtoJPSICuts[9]; // cuts on JPSI candidates
121 // (to be passed to AliAODRecoDecayHF2Prong::SelectBtoJPSI())
122 // 0 = inv. mass half width [GeV]
124 // 2 = cosThetaStar (negative electron)
127 // 5 = d0O [cm] upper limit!
128 // 6 = d0N [cm] upper limit!
131 Double_t fDplusCuts[12]; // cuts on Dplus candidates
132 // (to be passed to AliAODRecoDecayHF2Prong::SelectDplus())
133 // 0 = inv. mass half width [GeV]
136 // 3 = d0K [cm] lower limit!
137 // 4 = d0Pi [cm] lower limit!
139 // 6 = sigmavert (cm)
140 // 7 = dist prim-sec (cm)
141 // 8 = pM=Max{pT1,pT2,pT3} (GeV/c)
143 // 10 = Sum d0^2 (cm^2)
147 AliESDVertex* OwnPrimaryVertex(Int_t ntrks,TObjArray *trkArray,AliESDEvent *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(AliESDEvent *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;
156 ClassDef(AliAnalysisVertexingHF,1) // Reconstruction of HF decay candidates