1 #ifndef ALIMUONTRACKPARAM_H
2 #define ALIMUONTRACKPARAM_H
3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
7 // Revision of includes 07/05/2004
10 /// \class AliMUONTrackParam
11 /// \brief Track parameters in ALICE dimuon spectrometer
13 ////////////////////////////////////////////////////
14 /// Track parameters in ALICE dimuon spectrometer
15 ////////////////////////////////////////////////////
18 #include <TMatrixDfwd.h>
19 #include "AliMUONHitForRec.h"
21 class AliESDMuonTrack;
23 class AliMUONTrackParam : public TObject
26 AliMUONTrackParam(); // Constructor
27 virtual ~AliMUONTrackParam(); // Destructor
29 AliMUONTrackParam(const AliMUONTrackParam& theMUONTrackParam);
30 AliMUONTrackParam& operator=(const AliMUONTrackParam& theMUONTrackParam);
32 void GetParamFrom(const AliESDMuonTrack& esdMuonTrack);
33 void SetParamFor(AliESDMuonTrack& esdMuonTrack);
35 // Get and Set methods for data
36 /// return inverse bending momentum (GeV/c ** -1) times the charge (assumed forward motion)
37 Double_t GetInverseBendingMomentum(void) const {return fInverseBendingMomentum;}
38 /// set inverse bending momentum (GeV/c ** -1) times the charge (assumed forward motion)
39 void SetInverseBendingMomentum(Double_t inverseBendingMomentum) {fInverseBendingMomentum = inverseBendingMomentum;}
40 /// return bending slope (cm ** -1)
41 Double_t GetBendingSlope(void) const {return fBendingSlope;}
42 /// set bending slope (cm ** -1)
43 void SetBendingSlope(Double_t bendingSlope) {fBendingSlope = bendingSlope;}
44 /// return non bending slope (cm ** -1)
45 Double_t GetNonBendingSlope(void) const {return fNonBendingSlope;}
46 /// set non bending slope (cm ** -1)
47 void SetNonBendingSlope(Double_t nonBendingSlope) {fNonBendingSlope = nonBendingSlope;}
48 /// return Z coordinate (cm)
49 Double_t GetZ(void) const {return fZ;}
50 /// set Z coordinate (cm)
51 void SetZ(Double_t z) {fZ = z;}
52 /// return bending coordinate (cm)
53 Double_t GetBendingCoor(void) const {return fBendingCoor;}
54 /// set bending coordinate (cm)
55 void SetBendingCoor(Double_t bendingCoor) {fBendingCoor = bendingCoor;}
56 /// return non bending coordinate (cm)
57 Double_t GetNonBendingCoor(void) const {return fNonBendingCoor;}
58 /// set non bending coordinate (cm)
59 void SetNonBendingCoor(Double_t nonBendingCoor) {fNonBendingCoor = nonBendingCoor;}
61 void SetTrackParam(AliMUONTrackParam& theMUONTrackParam);
63 AliMUONHitForRec* GetHitForRecPtr(void) const;
64 /// set pointeur to associated HitForRec
65 void SetHitForRecPtr(AliMUONHitForRec* hitForRec) {fHitForRecPtr = hitForRec;}
67 Double_t Px() const; // return px
68 Double_t Py() const; // return py
69 Double_t Pz() const; // return pz
70 Double_t P() const; // return total momentum
72 /// return kTRUE if the covariance matrix exist, kFALSE if not
73 Bool_t CovariancesExist(void) {return (fCovariances) ? kTRUE : kFALSE;}
74 TMatrixD* GetCovariances(void);
75 void SetCovariances(TMatrixD* covariances);
76 void SetCovariances(Double_t matrix[5][5]);
77 void SetVariances(Double_t matrix[5][5]);
78 void DeleteCovariances(void);
80 void EvalCovariances(AliMUONHitForRec* hit2);
82 /// necessary for sorting TClonesArray of TrackHit's
83 Bool_t IsSortable () const {return kTRUE;}
84 Int_t Compare(const TObject* trackParam) const;
86 virtual void Print(Option_t* opt="") const;
91 Double_t fNonBendingCoor; ///< Non bending coordinate (cm)
92 Double_t fNonBendingSlope; ///< Non bending slope (cm ** -1)
93 Double_t fBendingCoor; ///< Bending coordinate (cm)
94 Double_t fBendingSlope; ///< Bending slope (cm ** -1)
95 Double_t fInverseBendingMomentum; ///< Inverse bending momentum (GeV/c ** -1) times the charge (assumed forward motion)
96 Double_t fZ; ///< Z coordinate (cm)
98 /// Covariance matrix of track parameters, ordered as follow:
99 /// <X,X> <X,SlopeX> <X,Y> <X,SlopeY> <X,InvP_yz>
100 /// <X,SlopeX> <SlopeX,SlopeX> <Y,SlopeX> <SlopeX,SlopeY> <SlopeX,InvP_yz>
101 /// <X,Y> <Y,SlopeX> <Y,Y> <Y,SlopeY> <Y,InvP_yz>
102 /// <X,SlopeY> <SlopeX,SlopeY> <Y,SlopeY> <SlopeY,SlopeY> <SlopeY,InvP_yz>
103 /// <X,InvP_yz> <SlopeX,InvP_yz> <Y,InvP_yz> <SlopeY,InvP_yz> <InvP_yz,InvP_yz>
104 TMatrixD *fCovariances; //!
106 AliMUONHitForRec *fHitForRecPtr; //!< Pointer to associated HitForRec if any
108 ClassDef(AliMUONTrackParam, 2) // Track parameters in ALICE dimuon spectrometer