#ifndef ALIMUONEVENTRECONSTRUCTOR_H #define ALIMUONEVENTRECONSTRUCTOR_H /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * * See cxx source for full Copyright notice */ /*$Id$*/ // Revision of includes 07/05/2004 //////////////////////////////////// // MUON event reconstructor in ALICE //////////////////////////////////// #include class AliMUONHit; class AliMUONHitForRec; class AliMUONSegment; class TClonesArray; class TFile; class TTree; class AliMUONRecoEvent; class AliMUONData; class AliRunLoader; class AliLoader; class AliTrackReference; class AliMUONEventReconstructor : public TObject { public: AliMUONEventReconstructor(AliLoader* loader); // default Constructor virtual ~AliMUONEventReconstructor(void); // Destructor // 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 GetRecTrackRefHits(void) const {return fRecTrackRefHits;} void SetRecTrackRefHits(Int_t RecTrackRefHits) {fRecTrackRefHits = RecTrackRefHits;} 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 Track Ref. background events TFile* GetBkgTrackRefFile(void) const {return fBkgTrackRefFile;} void SetBkgTrackRefFile(Text_t *BkgTrackRefFileName); // set background file for track ref. hits void NextBkgTrackRefEvent(void); // next event in background file for track ref. 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 // Reconstructed trigger tracks Int_t GetNRecTriggerTracks() const {return fNRecTriggerTracks;} // Number void SetNRecTriggerTracks(Int_t NRecTriggerTracks) {fNRecTriggerTracks = NRecTriggerTracks;} TClonesArray* GetRecTriggerTracksPtr(void) const {return fRecTriggerTracksPtr;} // 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 EventReconstructTrigger(void); void EventDump(void); // dump reconstructed event void EventDumpTrigger(void); // dump reconstructed trigger event void FillEvent(); // fill and write tree of reconstructed events void SetTrackMethod(Int_t iTrackMethod); //AZ Int_t GetTrackMethod(void) const {return fTrackMethod;} void FillMUONTrack(void); // set track parameters at hits for Kalman track //Int_t fMuons; // AZ - number of muons within acceptance - just for tests AliMUONData* GetMUONData() {return fMUONData;} protected: AliMUONEventReconstructor (const AliMUONEventReconstructor& rhs); // copy constructor AliMUONEventReconstructor& operator=(const AliMUONEventReconstructor& rhs); // assignment operator private: // Constants which should be elsewhere ???? static const Int_t fgkMaxMuonTrackingChambers = 10; // Max number of Muon tracking chambers static const Int_t fgkMaxMuonTrackingStations = 5; // Max number of Muon tracking stations // Defaults parameters for reconstruction static const Double_t fgkDefaultMinBendingMomentum; // default min. bending momentum for reconstruction static const Double_t fgkDefaultMaxBendingMomentum; // default max. bending momentum for reconstruction static const Double_t fgkDefaultMaxChi2; // default max. track chi2 for reconstruction static const Double_t fgkDefaultMaxSigma2Distance; // default square of max. distance for window size static const Double_t fgkDefaultBendingResolution; // default bending coordinate resolution for reconstruction static const Double_t fgkDefaultNonBendingResolution; // default non bending coordinate resolution for reconstruction static const Double_t fgkDefaultChamberThicknessInX0; // default chamber thickness in X0 for reconstruction // Simple magnetic field: // Value taken from macro MUONtracking.C: 0.7 T, hence 7 kG // Length and Position from reco_muon.F, with opposite sign: // Length = ZMAGEND-ZCOIL // Position = (ZMAGEND+ZCOIL)/2 // to be ajusted differently from real magnetic field ???? static const Double_t fgkDefaultSimpleBValue; // default value of magnetic field (dipole) static const Double_t fgkDefaultSimpleBLength; // default length of magnetic field (dipole) static const Double_t fgkDefaultSimpleBPosition; // default position of magnetic field (dipole) static const Int_t fgkDefaultRecTrackRefHits; // default flag for reconstrution track ref. hits or Clusters static const Double_t fgkDefaultEfficiency; // default chamber efficiency for track ref. hits recontruction static const Int_t fgkDefaultPrintLevel; // default print level Int_t fTrackMethod; // AZ - tracking method // 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[fgkMaxMuonTrackingChambers]; // minimum radius (cm) Double_t fRMax[fgkMaxMuonTrackingChambers]; // maximum radius (cm) Double_t fSegmentMaxDistBending[fgkMaxMuonTrackingStations]; // maximum distance (cm) for segments in bending plane Double_t fSegmentMaxDistNonBending[fgkMaxMuonTrackingStations]; // 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 fRecTrackRefHits; // reconstruction from raw clusters (0) or from track ref. hits (1) Double_t fEfficiency; // chamber efficiency (used for track ref. hits only) Int_t fPrintLevel; // print level // Parameters for track ref. background events // should be in AliMUON class ???? TFile *fBkgTrackRefFile; // pointer to file TTree *fBkgTrackRefTK; // pointer to tree TK TClonesArray *fBkgTrackRefParticles; // pointer to list of particles in tree TK TTree *fBkgTrackRefTTR; // pointer to tree TTR Int_t fBkgTrackRefEventNumber; // 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[fgkMaxMuonTrackingChambers]; // number of HitsForRec Int_t fIndexOfFirstHitForRecPerChamber[fgkMaxMuonTrackingChambers]; // index (0...) of first HitForRec // Segments inside a station TClonesArray *fSegmentsPtr[fgkMaxMuonTrackingStations]; // array of pointers to the segments for each station Int_t fNSegments[fgkMaxMuonTrackingStations]; // number of segments for each station // Reconstructed tracks TClonesArray *fRecTracksPtr; // pointer to array of reconstructed tracks Int_t fNRecTracks; // number of reconstructed tracks // Reconstructed trigger tracks TClonesArray *fRecTriggerTracksPtr; // pointer to array of reconstructed trigger tracks Int_t fNRecTriggerTracks; // number of reconstructed trigger 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 // data container AliMUONData* fMUONData; // Data container for MUON subsystem // alice loader AliLoader* fLoader; // MUON loader to get data Int_t fMuons; // AZ - number of muons within acceptance - just for tests // Functions void ResetHitsForRec(void); void MakeEventToBeReconstructed(void); void AddHitsForRecFromTrackRef(TTree *TTR, Int_t Signal); AliMUONHitForRec* NewHitForRecFromTrackRef(AliTrackReference* Hit, Int_t TrackNumber, Int_t Signal); TClonesArray *CleanTrackRefs(TTree *treeTR); /* void AddHitsForRecFromCathodeCorrelations(TTree* TC); */ void AddHitsForRecFromRawClusters(TTree* TR); void SortHitsForRecWithIncreasingChamber(); void MakeSegments(void); void ResetSegments(void); void MakeSegmentsPerStation(Int_t Station); void MakeTracks(void); Bool_t MakeTriggerTracks(void); void ResetTrackHits(void); void ResetTracks(void); void ResetTriggerTracks(void); Int_t MakeTrackCandidatesWithTwoSegments(AliMUONSegment *BegSegment); Int_t MakeTrackCandidatesWithOneSegmentAndOnePoint(AliMUONSegment *BegSegment); void MakeTrackCandidates(void); void FollowTracks(void); void RemoveDoubleTracks(void); void UpdateTrackParamAtHit(void); void UpdateHitForRecAtHit(void); void ValidateTracksWithTrigger(void); //AZ - for Kalman Filter void MakeTrackCandidatesK(void); void FollowTracksK(void); void RemoveDoubleTracksK(void); void GoToVertex(void); Bool_t CheckCandidateK(Int_t icand, Int_t nSeeds) const; ClassDef(AliMUONEventReconstructor, 0) // MUON event reconstructor in ALICE }; #endif