1 #ifndef ALIITSVERTEXER3D_H
2 #define ALIITSVERTEXER3D_H
4 #include<AliITSVertexer.h>
6 ///////////////////////////////////////////////////////////////////
8 // Class for primary vertex finding (3D reconstruction) //
10 ///////////////////////////////////////////////////////////////////
14 #include <TClonesArray.h>
15 #include <AliESDVertex.h>
18 class AliITSVertexer3D : public AliITSVertexer {
23 virtual ~AliITSVertexer3D();
24 virtual AliESDVertex* FindVertexForCurrentEvent(TTree *itsClusterTree);
25 AliESDVertex GetVertex3D() const {return fVert3D;}
26 virtual void PrintStatus() const;
27 void SetWideFiducialRegion(Float_t dz = 20.0, Float_t dr=2.5){
31 void SetNarrowFiducialRegion(Float_t dz = 0.5, Float_t dr=0.5){
35 void SetDeltaPhiCuts(Float_t dphiloose=0.5, Float_t dphitight=0.01){
36 SetCoarseDiffPhiCut(dphiloose);
37 SetDiffPhiMax(dphitight);
39 void SetCoarseDiffPhiCut(Float_t dphi = 0.5){fCoarseDiffPhiCut=dphi;}
40 void SetCoarseMaxRCut(Float_t rad = 2.5){fCoarseMaxRCut=rad;}
41 void SetMaxRCut(Float_t rad = 0.5){fMaxRCut=rad;}
42 void SetZCutDiamond(Float_t zcut = 20.0){fZCutDiamond=zcut;}
43 void SetMaxZCut(Float_t dz = 0.5){fMaxZCut=dz;}
44 void SetDCACut(Float_t dca=0.1){fDCAcut=dca;}
45 void SetDiffPhiMax(Float_t pm = 0.01){fDiffPhiMax = pm;}
46 void SetMeanPSelTracks(Float_t pGeV=0.875){fMeanPSelTrk = pGeV;}
47 void SetMeanPtSelTracks(Float_t ptGeV=0.630){fMeanPtSelTrk = ptGeV;}
48 void SetMeanPPtSelTracks(Float_t fieldTesla);
51 AliITSVertexer3D(const AliITSVertexer3D& vtxr);
52 AliITSVertexer3D& operator=(const AliITSVertexer3D& /* vtxr */);
53 Int_t FindTracklets(TTree *itsClusterTree, Int_t optCuts);
54 Int_t Prepare3DVertex(Int_t optCuts);
56 void FindPeaks(TH3F* histo, Double_t *peak, Int_t &nOfTracklets, Int_t &nOfTimes);
59 TClonesArray fLines; //! array of tracklets
60 AliESDVertex fVert3D; // 3D Vertex
61 Float_t fCoarseDiffPhiCut; // loose cut on DeltaPhi for RecPoint matching
62 Float_t fCoarseMaxRCut; // cut on tracklet DCA to Z axis
63 Float_t fMaxRCut; // cut on tracklet DCA to beam axis
64 Float_t fZCutDiamond; // cut on +-Z of the diamond
65 Float_t fMaxZCut; // cut on Z distance from estimated vertex
66 Float_t fDCAcut; // cut on tracklet to tracklet and tracklet to vertex DCA
67 Float_t fDiffPhiMax; // Maximum delta phi allowed among corr. pixels
68 Float_t fMeanPSelTrk; // GeV, mean P for tracks with dphi<0.01 rad
69 Float_t fMeanPtSelTrk; // GeV, mean Pt for tracks with dphi<0.01 rad
71 ClassDef(AliITSVertexer3D,6);