// //
///////////////////////////////////////////////////////////////////
-#include "AliVertex.h"
-class TClonesArray;
+/* $Id$ */
+
+#include <TClonesArray.h>
+#include <TRandom3.h>
+#include <AliESDVertex.h>
+#include <TH3F.h>
+#include <TBits.h>
class AliITSVertexer3D : public AliITSVertexer {
public:
- AliITSVertexer3D();
- AliITSVertexer3D(TString filename);
+ AliITSVertexer3D(Double_t zcut=0.);
+ AliITSVertexer3D(TRootIOCtor* );
virtual ~AliITSVertexer3D();
- virtual AliESDVertex* FindVertexForCurrentEvent(Int_t evnumb);
- virtual void FindVertices();
- AliVertex 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 AliESDVertex* FindVertexForCurrentEvent(TTree *itsClusterTree);
+ void FindVertex3DIterative();
+ void FindVertex3DIterativeMM();
+ void FindVertex3D(TTree *itsClusterTree);
+ AliESDVertex GetVertex3D() const {return fVert3D;}
+ // Double_t *Get3DPeak() {return f3DPeak;}
virtual void PrintStatus() const;
- void SetCoarseDiffPhiCut(Float_t dphi = 0.5){fCoarseDiffPhiCut=dphi;}
- 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 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;}
+ static Bool_t DistBetweenVertices(AliESDVertex &a, AliESDVertex &b, Double_t test, Double_t &dist);
+ void SetWideFiducialRegion(Double_t dz = 40.0, Double_t dr=2.5){
+ SetCoarseMaxRCut(dr);
+ SetZCutDiamond(dz);
+ }
+ void SetNarrowFiducialRegion(Double_t dz = 0.5, Double_t dr=0.5){
+ SetMaxRCut(dr);
+ SetMaxZCut(dz);
+ }
+ void SetDeltaPhiCuts(Double_t dphiloose=0.5, Double_t dphitight=0.025){
+ SetCoarseDiffPhiCut(dphiloose);
+ SetDiffPhiMax(dphitight);
+ }
+ void SetCoarseDiffPhiCut(Double_t dphi = 0.5){fCoarseDiffPhiCut=dphi;}
+ void SetFineDiffPhiCut(Double_t dphi = 0.05){fFineDiffPhiCut=dphi;}
+ void SetCutOnPairs(Double_t cp = 0.15){fCutOnPairs = cp;}
+ void SetCoarseMaxRCut(Double_t rad = 2.5){fCoarseMaxRCut=rad;}
+ void SetMaxRCut(Double_t rad = 0.5){fMaxRCut=rad;}
+ void SetMaxRCutAlgo2(Double_t rad = 0.2){fMaxRCut2=rad;}
+ void SetZCutDiamond(Double_t zcut = 40.0);
+ void SetMaxZCut(Double_t dz = 0.5){fMaxZCut=dz;}
+ void SetDCACut(Double_t dca=0.1){fDCAcut=dca;}
+ void SetDiffPhiMax(Double_t pm = 0.025){fDiffPhiMax = pm;}
+ void SetMeanPSelTracks(Double_t pGeV=0.875){fMeanPSelTrk = pGeV;}
+ void SetMeanPtSelTracks(Double_t ptGeV=0.630){fMeanPtSelTrk = ptGeV;}
+ void SetMeanPPtSelTracks(Double_t fieldTesla);
+ void SetMinDCAforPileup(Double_t mindist=0.1) {fDCAforPileup=mindist;}
+ void SetDeltaPhiforPileup(Double_t dphi=0.01) {fDiffPhiforPileup=dphi;}
+ void SetPileupAlgo(UShort_t optalgo=1){fPileupAlgo=optalgo;}
+ void SetBinSizeR(Double_t siz=0.1){fBinSizeR=siz;}
+ void SetBinSizeZ(Double_t siz=0.8){fBinSizeZ=siz;}
+ void SetHighMultAlgo(UChar_t n){
+ if(n<2) fHighMultAlgo=n;
+ else AliError("Only algos 0 and 1 implemented");
+ }
+ void SetHighMultDownscalingAlgo(){fHighMultAlgo=0;}
+ void SetHighMultTracesAlgo(){fHighMultAlgo=1;}
+
+ void SetMaxNumOfClustersForHighMult(Int_t ncl){fMaxNumOfCl=ncl;}
+ void SetMaxNumOfClustersForDownScale(Int_t ncl){fMaxNumOfClForDownScale=ncl;}
+ void SetMaxNumOfClustersForRebin(Int_t ncl){fMaxNumOfClForRebin=ncl;}
+ Int_t GetMaxNumOfClustersForHighMult() const {return fMaxNumOfCl;}
+ Int_t GetMaxNumOfClustersForDownScale() const {return fMaxNumOfClForDownScale;}
+ Int_t GetMaxNumOfClustersForRebin() const {return fMaxNumOfClForRebin;}
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);
+ Int_t Prepare3DVertexPbPb();
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);
+ Double_t GetFraction(Int_t itr) const;
+
+ enum {kMaxCluPerMod=250};
+ enum {kMaxPileupVertices=10};
+ TClonesArray fLines; //! array of tracklets
+ AliESDVertex fVert3D; // 3D Vertex
+ Double_t fCoarseDiffPhiCut; // loose cut on DeltaPhi for RecPoint matching
+ Double_t fFineDiffPhiCut; // tight value of DeltaPhi for RP matching (2nd method)
+ Double_t fCutOnPairs; //cut on distance between pairs of tracklets
+ Double_t fCoarseMaxRCut; // cut on tracklet DCA to Z axis
+ Double_t fMaxRCut; // cut on tracklet DCA to beam axis
+ Double_t fMaxRCut2; // cut on tracklet DCA to beam axis - algo2
+ Double_t fZCutDiamond; // cut on +-Z of the diamond
+ Double_t fMaxZCut; // cut on Z distance from estimated vertex
+ Double_t fDCAcut; // cut on tracklet to tracklet and tracklet to vertex DCA
+ Double_t fDiffPhiMax; // Maximum delta phi allowed among corr. pixels
+ Double_t fMeanPSelTrk; // GeV, mean P for tracks with dphi<0.01 rad
+ Double_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
+ Double_t fDCAforPileup; // Minimum DCA to 1st vertex for pileup tracklets
+ Double_t fDiffPhiforPileup; // Cut on delta phi for pileup
+ Double_t fBinSizeR; // Histo3D bin size along radius
+ Double_t fBinSizeZ; // Histo3D bin size along z
+ UShort_t fPileupAlgo; // Algo for pileup identification
+ // 0->VertexerZ pileup algo
+ // 1->Unused RecPoints algo
+ Int_t fMaxNumOfCl; // max n. of clusters on L1 or L2 for high mult definition
+ Int_t fMaxNumOfClForRebin; // max n. of clusters on L1 or L2 for rebin
+ Int_t fMaxNumOfClForDownScale; // max n. of clusters on L1 or L2 for downscale
+ Int_t fNRecPLay1; // number of rec ponts on SPD layer 1
+ Int_t fNRecPLay2; // number of rec ponts on SPD layer 2
+ Float_t f3DBinSize; // Size of the 3D bins
+ Bool_t fDoDownScale; // Control downscaling of tracklets in high mult
+ TRandom3 *fGenerForDownScale; // randomnumber generator fordownscaling
+ Double_t f3DPeak[3]; // TH3F peak coords
+ UChar_t fHighMultAlgo; // algorithm used for high mult. events
+ Bool_t fSwitchAlgorithm; // Switch between two algoritms in testing phase
+
+ static const Int_t fgkMaxNumOfClDefault; // Default max n. of clusters for downscale
+ static const Int_t fgkMaxNumOfClRebinDefault; // Default max n. of clusters for rebin
+ static const Int_t fgkMaxNumOfClDownscaleDefault; // Default max n. of clusters for rebin
+ static const Float_t fgk3DBinSizeDefault; // Default 3D bins size
- TClonesArray *fLines; //! array of tracklets
- AliVertex fVert3D; // 3D Vertex
- Float_t fCoarseDiffPhiCut; // loose cut on DeltaPhi for RecPoint matching
- 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 fMaxZCut; // cut on Z distance from estimated vertex
- Float_t fDCAcut; // cut on tracklet to tracklet and tracklet to vertex DCA
- Float_t fDiffPhiMax; // Maximum delta phi allowed among corr. pixels
- ClassDef(AliITSVertexer3D,2);
+ ClassDef(AliITSVertexer3D,15);
};
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff