1 #ifndef ALIMUONSEGMENT_H
2 #define ALIMUONSEGMENT_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 AliMUONSegment
11 /// \brief Segment for reconstruction in ALICE dimuon spectrometer
15 class AliMUONHitForRec;
16 class AliMUONTrackParam;
18 class AliMUONSegment : public TObject
21 AliMUONSegment(); // default constructor
22 virtual ~AliMUONSegment(){} // Destructor
23 AliMUONSegment(AliMUONHitForRec* Hit1, AliMUONHitForRec* Hit2); // Constructor from two HitForRec's
25 // Inline functions for Get and Set
26 AliMUONHitForRec* GetHitForRec1(void) const {return fHitForRecPtr1;}
27 AliMUONHitForRec* GetHitForRec2(void) const {return fHitForRecPtr2;}
28 Double_t GetBendingCoor(void) const {return fBendingCoor;}
29 void SetBendingCoor(Double_t BendingCoor) {fBendingCoor = BendingCoor;}
30 Double_t GetBendingSlope(void) const {return fBendingSlope;}
31 void SetBendingSlope(Double_t BendingSlope) {fBendingSlope = BendingSlope;}
32 Double_t GetNonBendingCoor(void) const {return fNonBendingCoor;}
33 void SetNonBendingCoor(Double_t NonBendingCoor) {fNonBendingCoor = NonBendingCoor;}
34 Double_t GetNonBendingSlope(void) const {return fNonBendingSlope;}
35 void SetNonBendingSlope(Double_t NonBendingSlope) {fNonBendingSlope = NonBendingSlope;}
36 Double_t GetBendingCoorReso2(void) const {return fBendingCoorReso2;}
37 void SetBendingCoorReso2(Double_t BendingCoorReso2) {fBendingCoorReso2 = BendingCoorReso2;}
38 Double_t GetNonBendingCoorReso2(void) const {return fNonBendingCoorReso2;}
39 void SetNonBendingCoorReso2(Double_t NonBendingCoorReso2) {fNonBendingCoorReso2 = NonBendingCoorReso2;}
40 Double_t GetZ(void) const {return fZ;}
42 Double_t GetBendingImpact(void) const {return fBendingImpact;}
43 Bool_t GetInTrack(void) const {return fInTrack;}
44 void SetInTrack(Bool_t InTrack) {fInTrack = InTrack;}
46 AliMUONSegment* CreateSegmentFromLinearExtrapToStation (Double_t z, Double_t MCSfactor) const;
47 Double_t NormalizedChi2WithSegment(AliMUONSegment* Segment, Double_t Sigma2Cut) const;
48 AliMUONHitForRec* CreateHitForRecFromLinearExtrapToChamber (Double_t z, Double_t MCSfactor) const;
49 void UpdateFromStationTrackParam(AliMUONTrackParam *TrackParam, Double_t MCSfactor, Double_t Dz1, Double_t Dz2, Double_t Dz3, Int_t Station, Double_t InverseMomentum);
51 // What is necessary for sorting TClonesArray's; sufficient too ????
52 Bool_t IsSortable() const { return kTRUE; }
53 Int_t Compare(const TObject* Segment) const; // "Compare" function for sorting
55 void Print(Option_t* opt="") const;
58 AliMUONHitForRec* fHitForRecPtr1; ///< pointer to HitForRec in first chamber
59 AliMUONHitForRec* fHitForRecPtr2; ///< pointer to HitForRec in second chamber
61 Double_t fBendingCoor; ///< Coordinate in bending plane
62 Double_t fBendingSlope; ///< Slope in bending plane
63 // Covariance in bending plane:
64 Double_t fBendingCoorReso2; ///< Covariance(coordinate C1 in first chamber)
65 Double_t fBendingSlopeReso2; ///< Covariance(slope)
66 Double_t fBendingCoorSlopeReso2; ///< Covariance(C1,slope)
67 Double_t fBendingImpact; ///< Impact parameter in bending plane
69 Double_t fNonBendingCoor; ///< Coordinate in non bending plane
70 Double_t fNonBendingSlope; ///< Slope in non bending plane
71 // Covariance in non bending plane:
72 Double_t fNonBendingCoorReso2; ///< Covariance(coordinate C1 in first chamber)
73 Double_t fNonBendingSlopeReso2; ///< Covariance(slope)
74 Double_t fNonBendingCoorSlopeReso2; ///< Covariance(C1,slope)
75 Double_t fNonBendingImpact; ///< Impact parameter in non bending plane
76 Double_t fZ; ///< Z of the segment
77 Bool_t fInTrack; ///< TRUE if segment belongs to one track
79 AliMUONSegment (const AliMUONSegment& AliMUONSegment); // copy constructor
80 AliMUONSegment& operator=(const AliMUONSegment& AliMUONSegment); // assignment operator
82 ClassDef(AliMUONSegment, 1) // Segment for reconstruction in ALICE dimuon spectrometer