#ifndef ALIMUONTRACKPARAM_H #define ALIMUONTRACKPARAM_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 /// \ingroup rec /// \class AliMUONTrackParam /// \brief Track parameters in ALICE dimuon spectrometer /// //////////////////////////////////////////////////// /// Track parameters in ALICE dimuon spectrometer //////////////////////////////////////////////////// #include #include class AliMUONVCluster; class AliESDMuonTrack; class AliMUONTrackParam : public TObject { public: AliMUONTrackParam(); // Constructor virtual ~AliMUONTrackParam(); // Destructor AliMUONTrackParam(const AliMUONTrackParam& theMUONTrackParam); AliMUONTrackParam& operator=(const AliMUONTrackParam& theMUONTrackParam); void GetParamFrom(const AliESDMuonTrack& esdMuonTrack); void SetParamFor(AliESDMuonTrack& esdMuonTrack) const; void GetParamFromDCA(const AliESDMuonTrack& esdMuonTrack); void SetParamForDCA(AliESDMuonTrack& esdMuonTrack) const; void GetParamFromUncorrected(const AliESDMuonTrack& esdMuonTrack); void SetParamForUncorrected(AliESDMuonTrack& esdMuonTrack) const; void GetCovFrom(const AliESDMuonTrack& esdMuonTrack); void SetCovFor(AliESDMuonTrack& esdMuonTrack) const; // Get and Set methods for data /// return Z coordinate (cm) Double_t GetZ() const {return fZ;} /// set Z coordinate (cm) void SetZ(Double_t z) {fZ = z;} /// return non bending coordinate (cm) Double_t GetNonBendingCoor() const {return fParameters(0,0);} /// set non bending coordinate (cm) void SetNonBendingCoor(Double_t nonBendingCoor) {fParameters(0,0) = nonBendingCoor;} /// return non bending slope (cm ** -1) Double_t GetNonBendingSlope() const {return fParameters(1,0);} /// set non bending slope (cm ** -1) void SetNonBendingSlope(Double_t nonBendingSlope) {fParameters(1,0) = nonBendingSlope;} /// return bending coordinate (cm) Double_t GetBendingCoor() const {return fParameters(2,0);} /// set bending coordinate (cm) void SetBendingCoor(Double_t bendingCoor) {fParameters(2,0) = bendingCoor;} /// return bending slope (cm ** -1) Double_t GetBendingSlope() const {return fParameters(3,0);} /// set bending slope (cm ** -1) void SetBendingSlope(Double_t bendingSlope) {fParameters(3,0) = bendingSlope;} /// return inverse bending momentum (GeV/c ** -1) times the charge (assumed forward motion) Double_t GetInverseBendingMomentum() const {return fParameters(4,0);} /// set inverse bending momentum (GeV/c ** -1) times the charge (assumed forward motion) void SetInverseBendingMomentum(Double_t inverseBendingMomentum) {fParameters(4,0) = inverseBendingMomentum;} /// return the charge (assumed forward motion) Double_t GetCharge() const {return TMath::Sign(1.,fParameters(4,0));} /// set the charge (assumed forward motion) void SetCharge(Double_t charge) {if (charge*fParameters(4,0) < 0.) fParameters(4,0) *= -1.;} /// return track parameters const TMatrixD& GetParameters() const {return fParameters;} /// set track parameters void SetParameters(const TMatrixD& parameters) {fParameters = parameters;} /// add track parameters void AddParameters(const TMatrixD& parameters) {fParameters += parameters;} Double_t Px() const; // return px Double_t Py() const; // return py Double_t Pz() const; // return pz Double_t P() const; // return total momentum /// return kTRUE if the covariance matrix exist, kFALSE if not Bool_t CovariancesExist() const {return (fCovariances) ? kTRUE : kFALSE;} const TMatrixD& GetCovariances() const; void SetCovariances(const TMatrixD& covariances); void SetCovariances(const Double_t matrix[5][5]); void SetVariances(const Double_t matrix[5][5]); void DeleteCovariances(); const TMatrixD& GetPropagator() const; void ResetPropagator(); void UpdatePropagator(const TMatrixD& propagator); const TMatrixD& GetExtrapParameters() const; void SetExtrapParameters(const TMatrixD& parameters); const TMatrixD& GetExtrapCovariances() const; void SetExtrapCovariances(const TMatrixD& covariances); const TMatrixD& GetSmoothParameters() const; void SetSmoothParameters(const TMatrixD& parameters); const TMatrixD& GetSmoothCovariances() const; void SetSmoothCovariances(const TMatrixD& covariances); /// get pointeur to associated cluster AliMUONVCluster* GetClusterPtr() const {return fClusterPtr;} /// set pointeur to associated cluster void SetClusterPtr(AliMUONVCluster* cluster, Bool_t owner = kFALSE) {fClusterPtr = cluster; fOwnCluster = owner;} /// return kTRUE if the associated cluster can be removed from the track it belongs to Bool_t IsRemovable() const {return fRemovable;} /// set the flag telling whether the associated cluster can be removed from the track it belongs to or not void SetRemovable(Bool_t removable) {fRemovable = removable;} /// return kTRUE if the associated cluster alone in its chamber Bool_t IsAloneInChamber() const {return fAloneInChamber;} /// set the flag telling whether the associated hi alone in its chamber or not void SetAloneInChamber(Bool_t aloneInChamber) {fAloneInChamber = aloneInChamber;} /// return the chi2 of the track when the associated cluster was attached Double_t GetTrackChi2() const {return fTrackChi2;} /// set the chi2 of the track when the associated cluster was attached void SetTrackChi2(Double_t chi2) {fTrackChi2 = chi2;} /// return the local chi2 of the associated cluster with respect to the track Double_t GetLocalChi2() const {return fLocalChi2;} /// set the local chi2 of the associated cluster with respect to the track void SetLocalChi2(Double_t chi2) {fLocalChi2 = chi2;} /// necessary for sorting TClonesArray of AliMUONTrackParam Bool_t IsSortable () const {return kTRUE;} Int_t Compare(const TObject* trackParam) const; Bool_t CompatibleTrackParam(const AliMUONTrackParam &trackParam, Double_t sigma2Cut, Double_t &normChi2) const; virtual void Print(Option_t* opt="") const; virtual void Clear(Option_t* opt=""); private: Double_t fZ; ///< Z coordinate (cm) /// Track parameters ordered as follow: 
  /// X       = Non bending coordinate   (cm)
  /// SlopeX  = Non bending slope        (cm ** -1)
  /// Y       = Bending coordinate       (cm)
  /// SlopeY  = Bending slope            (cm ** -1)
  /// InvP_yz = Inverse bending momentum (GeV/c ** -1) times the charge (assumed forward motion)
TMatrixD fParameters; ///< \brief Track parameters /// Covariance matrix of track parameters, ordered as follow: 
  ///                               
  ///         
  ///                               
  ///         
  ///
mutable TMatrixD *fCovariances; ///< \brief Covariance matrix of track parameters mutable TMatrixD *fPropagator; //!< Jacobian used to extrapolate the track parameters and covariances to the actual z position mutable TMatrixD *fExtrapParameters; //!< Track parameters extrapolated to the actual z position (not filtered by Kalman) mutable TMatrixD *fExtrapCovariances; //!< Covariance matrix extrapolated to the actual z position (not filtered by Kalman) mutable TMatrixD *fSmoothParameters; //!< Track parameters obtained using smoother mutable TMatrixD *fSmoothCovariances; //!< Covariance matrix obtained using smoother AliMUONVCluster *fClusterPtr; //!< Pointer to associated cluster if any Bool_t fOwnCluster; //!< Ownership of the associated cluster Bool_t fRemovable; //!< kTRUE if the associated cluster can be removed from the track it belongs to Bool_t fAloneInChamber; //!< kTRUE if the associated cluster is alone in its chamber Double_t fTrackChi2; //!< Chi2 of the track when the associated cluster was attached Double_t fLocalChi2; //!< Local chi2 of the associated cluster with respect to the track ClassDef(AliMUONTrackParam, 4) // Track parameters in ALICE dimuon spectrometer }; #endif