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
13 ////////////////////////////////////////////////////////////
14 /// Segment for reconstruction in ALICE dimuon spectrometer
15 ////////////////////////////////////////////////////////////
19 class AliMUONHitForRec;
20 class AliMUONTrackParam;
22 class AliMUONSegment : public TObject
25 AliMUONSegment(); // default constructor
26 virtual ~AliMUONSegment(){} // Destructor
27 AliMUONSegment(AliMUONHitForRec* Hit1, AliMUONHitForRec* Hit2); // Constructor from two HitForRec's
29 // Inline functions for Get and Set
30 AliMUONHitForRec* GetHitForRec1(void) const {return fHitForRecPtr1;}
31 AliMUONHitForRec* GetHitForRec2(void) const {return fHitForRecPtr2;}
32 Double_t GetBendingCoor(void) const {return fBendingCoor;}
33 void SetBendingCoor(Double_t BendingCoor) {fBendingCoor = BendingCoor;}
34 Double_t GetBendingSlope(void) const {return fBendingSlope;}
35 void SetBendingSlope(Double_t BendingSlope) {fBendingSlope = BendingSlope;}
36 Double_t GetNonBendingCoor(void) const {return fNonBendingCoor;}
37 void SetNonBendingCoor(Double_t NonBendingCoor) {fNonBendingCoor = NonBendingCoor;}
38 Double_t GetNonBendingSlope(void) const {return fNonBendingSlope;}
39 void SetNonBendingSlope(Double_t NonBendingSlope) {fNonBendingSlope = NonBendingSlope;}
40 Double_t GetBendingCoorReso2(void) const {return fBendingCoorReso2;}
41 void SetBendingCoorReso2(Double_t BendingCoorReso2) {fBendingCoorReso2 = BendingCoorReso2;}
42 Double_t GetNonBendingCoorReso2(void) const {return fNonBendingCoorReso2;}
43 void SetNonBendingCoorReso2(Double_t NonBendingCoorReso2) {fNonBendingCoorReso2 = NonBendingCoorReso2;}
44 Double_t GetZ(void) const {return fZ;}
46 Double_t GetBendingImpact(void) const {return fBendingImpact;}
47 Bool_t GetInTrack(void) const {return fInTrack;}
48 void SetInTrack(Bool_t InTrack) {fInTrack = InTrack;}
50 AliMUONSegment* CreateSegmentFromLinearExtrapToStation (Double_t z, Double_t MCSfactor) const;
51 Double_t NormalizedChi2WithSegment(AliMUONSegment* Segment, Double_t Sigma2Cut) const;
52 AliMUONHitForRec* CreateHitForRecFromLinearExtrapToChamber (Double_t z, Double_t MCSfactor) const;
53 void UpdateFromStationTrackParam(AliMUONTrackParam *TrackParam, Double_t MCSfactor, Double_t Dz1, Double_t Dz2, Double_t Dz3, Int_t Station, Double_t InverseMomentum);
55 // What is necessary for sorting TClonesArray's; sufficient too ????
56 Bool_t IsSortable() const { return kTRUE; }
57 Int_t Compare(const TObject* Segment) const; // "Compare" function for sorting
60 AliMUONSegment (const AliMUONSegment& AliMUONSegment); // copy constructor
61 AliMUONSegment& operator=(const AliMUONSegment& AliMUONSegment); // assignment operator
64 AliMUONHitForRec* fHitForRecPtr1; // pointer to HitForRec in first chamber
65 AliMUONHitForRec* fHitForRecPtr2; // pointer to HitForRec in second chamber
67 Double_t fBendingCoor; // Coordinate in bending plane
68 Double_t fBendingSlope; // Slope in bending plane
69 // Covariance in bending plane:
70 Double_t fBendingCoorReso2; // Covariance(coordinate C1 in first chamber)
71 Double_t fBendingSlopeReso2; // Covariance(slope)
72 Double_t fBendingCoorSlopeReso2; // Covariance(C1,slope)
73 Double_t fBendingImpact; // Impact parameter in bending plane
75 Double_t fNonBendingCoor; // Coordinate in non bending plane
76 Double_t fNonBendingSlope; // Slope in non bending plane
77 // Covariance in non bending plane:
78 Double_t fNonBendingCoorReso2; // Covariance(coordinate C1 in first chamber)
79 Double_t fNonBendingSlopeReso2; // Covariance(slope)
80 Double_t fNonBendingCoorSlopeReso2; // Covariance(C1,slope)
81 Double_t fNonBendingImpact; // Impact parameter in non bending plane
82 Double_t fZ; // Z of the segment
83 Bool_t fInTrack; // TRUE if segment belongs to one track
85 ClassDef(AliMUONSegment, 1) // Segment for reconstruction in ALICE dimuon spectrometer