#ifndef ALIMUONEVENTRECONSTRUCTOR_H #define ALIMUONEVENTRECONSTRUCTOR_H /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * * See cxx source for full Copyright notice */ /*$Id$*/ //////////////////////////////////// // MUON event reconstructor in ALICE //////////////////////////////////// #include class AliMUONHit; class AliMUONHitForRec; class AliMUONSegment; class TClonesArray; class TFile; class TTree; class AliMUONRecoEvent; // Constants which should be elsewhere ???? const Int_t kMaxMuonTrackingChambers = 10; const Int_t kMaxMuonTrackingStations = kMaxMuonTrackingChambers / 2; class AliMUONEventReconstructor : public TObject { public: AliMUONEventReconstructor(void); // Constructor virtual ~AliMUONEventReconstructor(void); // Destructor AliMUONEventReconstructor (const AliMUONEventReconstructor& Reconstructor); // copy constructor AliMUONEventReconstructor& operator=(const AliMUONEventReconstructor& Reconstructor); // assignment operator // Parameters for event reconstruction: public methods // Get and Set, Set to defaults Double_t GetMinBendingMomentum(void) const {return fMinBendingMomentum;} void SetMinBendingMomentum(Double_t MinBendingMomentum) {fMinBendingMomentum = MinBendingMomentum;} Double_t GetMaxBendingMomentum(void) const {return fMaxBendingMomentum;} void SetMaxBendingMomentum(Double_t MaxBendingMomentum) {fMaxBendingMomentum = MaxBendingMomentum;} Double_t GetMaxChi2(void) const {return fMaxChi2;} void SetMaxChi2(Double_t MaxChi2) {fMaxChi2 = MaxChi2;} Double_t GetMaxSigma2Distance(void) const {return fMaxSigma2Distance;} void SetMaxSigma2Distance(Double_t MaxSigma2Distance) {fMaxSigma2Distance = MaxSigma2Distance;} Double_t GetBendingResolution(void) const {return fBendingResolution;} void SetBendingResolution(Double_t BendingResolution) {fBendingResolution = BendingResolution;} Double_t GetNonBendingResolution(void) const {return fNonBendingResolution;} void SetNonBendingResolution(Double_t NonBendingResolution) {fNonBendingResolution = NonBendingResolution;} Double_t GetChamberThicknessInX0(void) const {return fChamberThicknessInX0;} void SetChamberThicknessInX0(Double_t ChamberThicknessInX0) {fChamberThicknessInX0 = ChamberThicknessInX0;} Double_t GetSimpleBValue(void) const {return fSimpleBValue;} void SetSimpleBValue(Double_t SimpleBValue) {fSimpleBValue = SimpleBValue;} Double_t GetSimpleBLength(void) const {return fSimpleBLength;} void SetSimpleBLength(Double_t SimpleBLength) {fSimpleBLength = SimpleBLength;} Double_t GetSimpleBPosition(void) const {return fSimpleBPosition;} void SetSimpleBPosition(Double_t SimpleBPosition) {fSimpleBPosition = SimpleBPosition;} Int_t GetRecGeantHits(void) const {return fRecGeantHits;} void SetRecGeantHits(Int_t RecGeantHits) {fRecGeantHits = RecGeantHits;} Double_t GetEfficiency(void) const {return fEfficiency;} void SetEfficiency(Double_t Efficiency) {fEfficiency = Efficiency;} Int_t GetPrintLevel(void) const {return fPrintLevel;} void SetPrintLevel(Int_t PrintLevel) {fPrintLevel = PrintLevel;} void SetReconstructionParametersToDefaults(void); // Parameters for GEANT background events TFile* GetBkgGeantFile(void) const {return fBkgGeantFile;} void SetBkgGeantFile(Text_t *BkgGeantFileName); // set background file for GEANT hits void NextBkgGeantEvent(void); // next event in background file for GEANT hits // Hits for reconstruction Int_t GetNHitsForRec(void) const {return fNHitsForRec;} // Number // Reconstructed tracks Int_t GetNRecTracks() const {return fNRecTracks;} // Number void SetNRecTracks(Int_t NRecTracks) {fNRecTracks = NRecTracks;} TClonesArray* GetRecTracksPtr(void) const {return fRecTracksPtr;} // Array // Hits on reconstructed tracks Int_t GetNRecTrackHits() const {return fNRecTrackHits;} // Number void SetNRecTrackHits(Int_t NRecTrackHits) {fNRecTrackHits = NRecTrackHits;} TClonesArray* GetRecTrackHitsPtr(void) const {return fRecTrackHitsPtr;} // Array // Functions Double_t GetImpactParamFromBendingMomentum(Double_t BendingMomentum) const; Double_t GetBendingMomentumFromImpactParam(Double_t ImpactParam) const; void EventReconstruct(void); void EventDump(void); // dump reconstructed event void FillEvent(); // fill and write tree of reconstructed events protected: private: // Parameters for event reconstruction Double_t fMinBendingMomentum; // minimum value (GeV/c) of momentum in bending plane // Parameters for event reconstruction Double_t fMaxBendingMomentum; // maximum value (GeV/c) of momentum in bending plane Double_t fMaxChi2; // maximum Chi2 per degree of Freedom Double_t fMaxSigma2Distance; // maximum square distance in units of the variance (maximum chi2) Double_t fRMin[kMaxMuonTrackingChambers]; // minimum radius (cm) Double_t fRMax[kMaxMuonTrackingChambers]; // maximum radius (cm) Double_t fSegmentMaxDistBending[kMaxMuonTrackingStations]; // maximum distance (cm) for segments in bending plane Double_t fSegmentMaxDistNonBending[kMaxMuonTrackingStations]; // maximum distance (cm) for segments in non bending plane Double_t fBendingResolution; // chamber resolution (cm) in bending plane Double_t fNonBendingResolution; // chamber resolution (cm) in non bending plane Double_t fChamberThicknessInX0; // chamber thickness in number of radiation lengths // how to take it from simulation ???? Double_t fSimpleBValue; // simple magnetic field: value (kG) Double_t fSimpleBLength; // simple magnetic field: length (cm) Double_t fSimpleBPosition; // simple magnetic field: Z central position (cm) Int_t fRecGeantHits; // reconstruction from raw clusters (0) or from GEANT hits (1) Double_t fEfficiency; // chamber efficiency (used for GEANT hits only) Int_t fPrintLevel; // print level // Parameters for GEANT background events // should be in AliMUON class ???? TFile *fBkgGeantFile; // pointer to file TTree *fBkgGeantTK; // pointer to tree TK TClonesArray *fBkgGeantParticles; // pointer to list of particles in tree TK TTree *fBkgGeantTH; // pointer to tree TH TClonesArray *fBkgGeantHits; // pointer to list of hits in tree TH Int_t fBkgGeantEventNumber; // event number // Hits for reconstruction (should be in AliMUON ????) TClonesArray *fHitsForRecPtr; // pointer to the array of hits for reconstruction Int_t fNHitsForRec; // number of hits for reconstruction // Information per chamber (should be in AliMUONChamber ????) Int_t fNHitsForRecPerChamber[kMaxMuonTrackingChambers]; // number of HitsForRec Int_t fIndexOfFirstHitForRecPerChamber[kMaxMuonTrackingChambers]; // index (0...) of first HitForRec // Segments inside a station TClonesArray *fSegmentsPtr[kMaxMuonTrackingStations]; // array of pointers to the segments for each station Int_t fNSegments[kMaxMuonTrackingStations]; // number of segments for each station // Reconstructed tracks TClonesArray *fRecTracksPtr; // pointer to array of reconstructed tracks Int_t fNRecTracks; // number of reconstructed tracks // Track hits on reconstructed tracks TClonesArray *fRecTrackHitsPtr; // pointer to array of hits on reconstructed tracks Int_t fNRecTrackHits; // number of hits on reconstructed tracks // Objects needed for tree writing AliMUONRecoEvent *fRecoEvent; // the reconstructed event TTree *fEventTree; // tree of reconstructed events TFile *fTreeFile; // file where the tree is outputed // Functions void ResetHitsForRec(void); void MakeEventToBeReconstructed(void); void AddHitsForRecFromGEANT(TTree *TH); void AddHitsForRecFromBkgGEANT(TTree *TH, TClonesArray *Hits); AliMUONHitForRec* NewHitForRecFromGEANT(AliMUONHit* Hit, Int_t TrackNumber, Int_t HitNumber, Int_t Signal); /* void AddHitsForRecFromCathodeCorrelations(TTree* TC); */ void AddHitsForRecFromRawClusters(TTree* TR); void SortHitsForRecWithIncreasingChamber(); void MakeSegments(void); void ResetSegments(void); void MakeSegmentsPerStation(Int_t Station); void MakeTracks(void); void ResetTrackHits(void); void ResetTracks(void); Int_t MakeTrackCandidatesWithTwoSegments(AliMUONSegment *BegSegment); Int_t MakeTrackCandidatesWithOneSegmentAndOnePoint(AliMUONSegment *BegSegment); void MakeTrackCandidates(void); void FollowTracks(void); void RemoveDoubleTracks(void); ClassDef(AliMUONEventReconstructor, 0) // MUON event reconstructor in ALICE }; #endif