#include <TClonesArray.h>
#include <AliESDVertex.h>
+#include <TH3F.h>
+#include <TBits.h>
class AliITSVertexer3D : public AliITSVertexer {
public:
AliITSVertexer3D();
- AliITSVertexer3D(TString filename);
virtual ~AliITSVertexer3D();
- virtual AliESDVertex* FindVertexForCurrentEvent(Int_t evnumb);
- virtual void FindVertices();
+ virtual AliESDVertex* FindVertexForCurrentEvent(TTree *itsClusterTree);
+ void FindVertex3DIterative();
+ void FindVertex3D(TTree *itsClusterTree);
AliESDVertex GetVertex3D() const {return fVert3D;}
-// virtual void MakeTracklet(Double_t *pA, Double_t *pB, Int_t &nolines); */
-// virtual void MakeTracklet(Float_t *pA, Float_t *pB, Int_t &nolines); */
virtual void PrintStatus() const;
+ static Bool_t DistBetweenVertices(AliESDVertex &a, AliESDVertex &b, Double_t test, Double_t &dist);
+ void SetWideFiducialRegion(Float_t dz = 20.0, Float_t dr=2.5){
+ SetCoarseMaxRCut(dr);
+ SetZCutDiamond(dz);
+ }
+ void SetNarrowFiducialRegion(Float_t dz = 0.5, Float_t dr=0.5){
+ SetMaxRCut(dr);
+ SetMaxZCut(dz);
+ }
+ void SetDeltaPhiCuts(Float_t dphiloose=0.5, Float_t dphitight=0.025){
+ SetCoarseDiffPhiCut(dphiloose);
+ SetDiffPhiMax(dphitight);
+ }
void SetCoarseDiffPhiCut(Float_t dphi = 0.5){fCoarseDiffPhiCut=dphi;}
+ void SetFineDiffPhiCut(Float_t dphi = 0.05){fFineDiffPhiCut=dphi;}
+ void SetCutOnPairs(Float_t cp = 0.1){fCutOnPairs = cp;}
void SetCoarseMaxRCut(Float_t rad = 2.5){fCoarseMaxRCut=rad;}
void SetMaxRCut(Float_t rad = 0.5){fMaxRCut=rad;}
- void SetZCutDiamond(Float_t zcut = 14.0){fZCutDiamond=zcut;}
+ void SetZCutDiamond(Float_t zcut = 20.0){fZCutDiamond=zcut;}
void SetMaxZCut(Float_t dz = 0.5){fMaxZCut=dz;}
- void SetDCAcut(Float_t dca=0.1){fDCAcut=dca;}
- void SetDiffPhiMax(Float_t pm = 0.01){fDiffPhiMax = pm;}
+ void SetDCACut(Float_t dca=0.1){fDCAcut=dca;}
+ void SetDiffPhiMax(Float_t pm = 0.025){fDiffPhiMax = pm;}
void SetMeanPSelTracks(Float_t pGeV=0.875){fMeanPSelTrk = pGeV;}
void SetMeanPtSelTracks(Float_t ptGeV=0.630){fMeanPtSelTrk = ptGeV;}
void SetMeanPPtSelTracks(Float_t fieldTesla);
+ void SetMinDCAforPileup(Float_t mindist=0.1) {fDCAforPileup=mindist;}
+ void SetPileupAlgo(UShort_t optalgo=0){fPileupAlgo=optalgo;}
+ void SetBinSizeR(Float_t siz=0.1){fBinSizeR=siz;}
+ void SetBinSizeZ(Float_t siz=0.8){fBinSizeZ=siz;}
protected:
AliITSVertexer3D(const AliITSVertexer3D& vtxr);
AliITSVertexer3D& operator=(const AliITSVertexer3D& /* vtxr */);
- Int_t FindTracklets(Int_t evnumber, Int_t optCuts);
+ Int_t FindTracklets(TTree *itsClusterTree, Int_t optCuts);
Int_t Prepare3DVertex(Int_t optCuts);
void ResetVert3D();
+ void FindPeaks(TH3F* histo, Double_t *peak, Int_t &nOfTracklets, Int_t &nOfTimes);
+ void PileupFromZ();
+ void MarkUsedClusters();
+ Int_t RemoveTracklets();
+ void FindOther3DVertices(TTree *itsClusterTree);
+ enum {kMaxCluPerMod=250};
TClonesArray fLines; //! array of tracklets
AliESDVertex fVert3D; // 3D Vertex
- Float_t fCoarseDiffPhiCut; // loose cut on DeltaPhi for RecPoint matching
+ Float_t fCoarseDiffPhiCut; // loose cut on DeltaPhi for RecPoint matching
+ Float_t fFineDiffPhiCut; // tight value of DeltaPhi for RP matching (2nd method)
+ Float_t fCutOnPairs; //cut on distance between pairs of tracklets
Float_t fCoarseMaxRCut; // cut on tracklet DCA to Z axis
Float_t fMaxRCut; // cut on tracklet DCA to beam axis
Float_t fZCutDiamond; // cut on +-Z of the diamond
Float_t fDiffPhiMax; // Maximum delta phi allowed among corr. pixels
Float_t fMeanPSelTrk; // GeV, mean P for tracks with dphi<0.01 rad
Float_t fMeanPtSelTrk; // GeV, mean Pt for tracks with dphi<0.01 rad
+ TBits fUsedCluster; // flag for used clusters in vertex calculation
+ TH1F *fZHisto; //! histogram with coarse z distribution
+ Float_t fDCAforPileup; // Minimum DCA to 1st vertex for pileup tracklets
+ Float_t fBinSizeR; // Histo3D bin size along radius
+ Float_t fBinSizeZ; // Histo3D bin size along z
+ UShort_t fPileupAlgo; // Algo for pileup identification
+ // 0->VertexerZ pileup algo
+ // 1->Unused RecPoints algo
- ClassDef(AliITSVertexer3D,4);
+ ClassDef(AliITSVertexer3D,9);
};