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3a9a3487 | 1 | #ifndef AliD0toKpiAnalysis_H |
2 | #define AliD0toKpiAnalysis_H | |
3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
4 | * See cxx source for full Copyright notice */ | |
5 | ||
6 | //------------------------------------------------------------------------- | |
7 | // Class AliD0toKpiAnalysis | |
8 | // Reconstruction and analysis D0 -> K^- pi^+ | |
9 | // | |
ef0182f7 | 10 | // Origin: A. Dainese andrea.dainese@lnl.infn.it |
3a9a3487 | 11 | //------------------------------------------------------------------------- |
12 | ||
3a9a3487 | 13 | #include <TString.h> |
14 | #include <TNamed.h> | |
15 | #include "AliESD.h" | |
ef0182f7 | 16 | #include "AliRun.h" |
3a9a3487 | 17 | |
18 | //----------------------------------------------------------------------------- | |
19 | class AliD0toKpiAnalysis : public TNamed { | |
20 | public: | |
21 | // | |
22 | AliD0toKpiAnalysis(); | |
23 | virtual ~AliD0toKpiAnalysis(); | |
24 | ||
25 | void ApplySelection(const Char_t *inName="AliD0toKpi.root", | |
26 | const Char_t *outName="AliD0toKpi_sele.root") const; | |
ef0182f7 | 27 | void FindCandidates(Int_t evFirst=0,Int_t evLast=0, |
28 | const Char_t *outName="AliD0toKpi.root"); | |
29 | void MakeTracksRefFile(AliRun *gAlice,Int_t evFirst=0,Int_t evLast=0) const; | |
3a9a3487 | 30 | void PrintStatus() const; |
7b84ea57 | 31 | void SetVertexOnTheFly() { fVertexOnTheFly=kTRUE; } |
32 | void SetSimulation() { fSim=kTRUE; } | |
33 | void SetOnlySignal() { fOnlySignal=kTRUE; } | |
34 | void SetPtCut(Double_t pt=0.) { fPtCut=pt; } | |
35 | void Setd0Cut(Double_t d0=0.) { fd0Cut=d0; } | |
36 | void SetMassCut(Double_t deltaM=1000.) { fMassCut=deltaM; } | |
3a9a3487 | 37 | void SetD0Cuts(Double_t cut0=1000.,Double_t cut1=100000., |
38 | Double_t cut2=1.1,Double_t cut3=0.,Double_t cut4=0., | |
39 | Double_t cut5=100000.,Double_t cut6=100000., | |
40 | Double_t cut7=100000000.,Double_t cut8=-1.1); | |
41 | void SetD0Cuts(const Double_t cuts[9]); | |
7b84ea57 | 42 | void SetPID(const Char_t * pid="TOFparam_PbPb") { fPID=pid; } |
3a9a3487 | 43 | // |
44 | private: | |
45 | // | |
3a9a3487 | 46 | Bool_t fVertexOnTheFly; // flag for primary vertex reco on the fly |
47 | Bool_t fSim; // flag for the analysis of simulated events | |
48 | Bool_t fOnlySignal; // write to file only signal candidates (for sim) | |
49 | TString fPID; // PID scheme | |
50 | ||
51 | Double_t fV1[3]; // primary vertex position (in cm) | |
52 | Double_t fPtCut; // minimum track pt (in GeV/c) | |
53 | Double_t fd0Cut; // minimum track |rphi impact parameter| (in micron) | |
54 | Double_t fMassCut; // maximum of |InvMass-MD0| (in GeV) | |
55 | Double_t fD0Cuts[9]; // cuts on D0 candidates (see SetD0Cuts()) | |
56 | // (to be passed to function AliD0toKpi::Select()) | |
57 | // 0 = inv. mass half width [GeV] | |
58 | // 1 = dca [micron] | |
59 | // 2 = cosThetaStar | |
60 | // 3 = pTK [GeV/c] | |
61 | // 4 = pTPi [GeV/c] | |
62 | // 5 = d0K [micron] upper limit! | |
63 | // 6 = d0Pi [micron] upper limit! | |
64 | // 7 = d0d0 [micron^2] | |
65 | // 8 = cosThetaPoint | |
66 | ||
3a9a3487 | 67 | // |
68 | Double_t CalculateTOFmass(Double_t mom,Double_t length,Double_t time) const; | |
3a9a3487 | 69 | Bool_t SelectInvMass(const Double_t p[6]) const; |
ef0182f7 | 70 | void SelectTracks(AliESD *event, |
71 | TObjArray &trksP,Int_t *trkEntryP,Int_t &nTrksP, | |
72 | TObjArray &trksN,Int_t *trkEntryN,Int_t &nTrksN) const; | |
3a9a3487 | 73 | void SetVertex1(Double_t x=0.,Double_t y=0.,Double_t z=0.) |
7b84ea57 | 74 | { fV1[0]=x;fV1[1]=y;fV1[2]=z; } |
3a9a3487 | 75 | void SimulationInfo(TTree *treeD0in,TTree *treeD0out) const; |
c7bafca9 | 76 | Bool_t SingleTrkCuts(const AliESDtrack& trk, Double_t b) const; |
3a9a3487 | 77 | // |
ef0182f7 | 78 | ClassDef(AliD0toKpiAnalysis,3) // Reconstruction of D0 candidates class |
3a9a3487 | 79 | }; |
80 | ||
81 | ||
82 | #endif | |
83 | ||
84 | ||
85 | ||
86 | ||
87 | ||
88 | ||
89 | ||
90 |