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70c95f95 | 1 | #ifndef ALIITSVERTEXER3D_H |
2 | #define ALIITSVERTEXER3D_H | |
3 | ||
27167524 | 4 | #include<AliITSVertexer.h> |
70c95f95 | 5 | |
6 | /////////////////////////////////////////////////////////////////// | |
7 | // // | |
8 | // Class for primary vertex finding (3D reconstruction) // | |
9 | // // | |
10 | /////////////////////////////////////////////////////////////////// | |
11 | ||
6a0d56b8 | 12 | /* $Id$ */ |
13 | ||
f5f6da22 | 14 | #include <TClonesArray.h> |
6a0d56b8 | 15 | #include <AliESDVertex.h> |
7340864d | 16 | #include <TH3F.h> |
cd1c2af1 | 17 | #include <TBits.h> |
70c95f95 | 18 | |
19 | class AliITSVertexer3D : public AliITSVertexer { | |
20 | ||
21 | public: | |
22 | ||
23 | AliITSVertexer3D(); | |
70c95f95 | 24 | virtual ~AliITSVertexer3D(); |
308c2f7c | 25 | virtual AliESDVertex* FindVertexForCurrentEvent(TTree *itsClusterTree); |
6a0d56b8 | 26 | AliESDVertex GetVertex3D() const {return fVert3D;} |
70c95f95 | 27 | virtual void PrintStatus() const; |
d8ba9ddf | 28 | void SetWideFiducialRegion(Float_t dz = 20.0, Float_t dr=2.5){ |
7203e11a | 29 | SetCoarseMaxRCut(dr); |
30 | SetZCutDiamond(dz); | |
31 | } | |
32 | void SetNarrowFiducialRegion(Float_t dz = 0.5, Float_t dr=0.5){ | |
33 | SetMaxRCut(dr); | |
34 | SetMaxZCut(dz); | |
35 | } | |
36 | void SetDeltaPhiCuts(Float_t dphiloose=0.5, Float_t dphitight=0.01){ | |
37 | SetCoarseDiffPhiCut(dphiloose); | |
38 | SetDiffPhiMax(dphitight); | |
39 | } | |
70c95f95 | 40 | void SetCoarseDiffPhiCut(Float_t dphi = 0.5){fCoarseDiffPhiCut=dphi;} |
05d1294c | 41 | void SetCoarseMaxRCut(Float_t rad = 2.5){fCoarseMaxRCut=rad;} |
42 | void SetMaxRCut(Float_t rad = 0.5){fMaxRCut=rad;} | |
d8ba9ddf | 43 | void SetZCutDiamond(Float_t zcut = 20.0){fZCutDiamond=zcut;} |
05d1294c | 44 | void SetMaxZCut(Float_t dz = 0.5){fMaxZCut=dz;} |
7203e11a | 45 | void SetDCACut(Float_t dca=0.1){fDCAcut=dca;} |
70c95f95 | 46 | void SetDiffPhiMax(Float_t pm = 0.01){fDiffPhiMax = pm;} |
6a0d56b8 | 47 | void SetMeanPSelTracks(Float_t pGeV=0.875){fMeanPSelTrk = pGeV;} |
48 | void SetMeanPtSelTracks(Float_t ptGeV=0.630){fMeanPtSelTrk = ptGeV;} | |
49 | void SetMeanPPtSelTracks(Float_t fieldTesla); | |
cd1c2af1 | 50 | void SetMinDCAforPileup(Float_t mindist=0.1) {fDCAforPileup=mindist;} |
51 | void SetPileupAlgo(UShort_t optalgo=0){fPileupAlgo=optalgo;} | |
70c95f95 | 52 | |
53 | protected: | |
54 | AliITSVertexer3D(const AliITSVertexer3D& vtxr); | |
55 | AliITSVertexer3D& operator=(const AliITSVertexer3D& /* vtxr */); | |
308c2f7c | 56 | Int_t FindTracklets(TTree *itsClusterTree, Int_t optCuts); |
05d1294c | 57 | Int_t Prepare3DVertex(Int_t optCuts); |
27167524 | 58 | void ResetVert3D(); |
7340864d | 59 | void FindPeaks(TH3F* histo, Double_t *peak, Int_t &nOfTracklets, Int_t &nOfTimes); |
cd1c2af1 | 60 | void PileupFromZ(); |
61 | void MarkUsedClusters(); | |
62 | Int_t RemoveTracklets(); | |
63 | void FindOther3DVertices(TTree *itsClusterTree); | |
70c95f95 | 64 | |
cd1c2af1 | 65 | enum {kMaxCluPerMod=250}; |
6a0d56b8 | 66 | |
f5f6da22 | 67 | TClonesArray fLines; //! array of tracklets |
6a0d56b8 | 68 | AliESDVertex fVert3D; // 3D Vertex |
70c95f95 | 69 | Float_t fCoarseDiffPhiCut; // loose cut on DeltaPhi for RecPoint matching |
05d1294c | 70 | Float_t fCoarseMaxRCut; // cut on tracklet DCA to Z axis |
71 | Float_t fMaxRCut; // cut on tracklet DCA to beam axis | |
70c95f95 | 72 | Float_t fZCutDiamond; // cut on +-Z of the diamond |
05d1294c | 73 | Float_t fMaxZCut; // cut on Z distance from estimated vertex |
70c95f95 | 74 | Float_t fDCAcut; // cut on tracklet to tracklet and tracklet to vertex DCA |
75 | Float_t fDiffPhiMax; // Maximum delta phi allowed among corr. pixels | |
6a0d56b8 | 76 | Float_t fMeanPSelTrk; // GeV, mean P for tracks with dphi<0.01 rad |
77 | Float_t fMeanPtSelTrk; // GeV, mean Pt for tracks with dphi<0.01 rad | |
cd1c2af1 | 78 | TBits fUsedCluster; // flag for used clusters in vertex calculation |
79 | TH1F *fZHisto; //! histogram with coarse z distribution | |
80 | Float_t fDCAforPileup; // Minimum DCA to 1st vertex for pileup tracklets | |
81 | UShort_t fPileupAlgo; // Algo for pileup identification | |
82 | // 0->VertexerZ pileup algo | |
83 | // 1->Unused RecPoints algo | |
6a0d56b8 | 84 | |
cd1c2af1 | 85 | ClassDef(AliITSVertexer3D,7); |
70c95f95 | 86 | |
87 | }; | |
88 | ||
89 | #endif |