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 */
8 ///////////////////////////////////////////////////////////
9 // Segment for reconstruction in ALICE dimuon spectrometer
10 ///////////////////////////////////////////////////////////
14 class AliMUONHitForRec;
15 class AliMUONTrackParam;
17 class AliMUONSegment : public TObject {
19 AliMUONSegment(); // default constructor
20 virtual ~AliMUONSegment(){
23 AliMUONSegment (const AliMUONSegment& AliMUONSegment); // copy constructor
24 AliMUONSegment& operator=(const AliMUONSegment& AliMUONSegment); // assignment operator
25 AliMUONSegment(AliMUONHitForRec* Hit1, AliMUONHitForRec* Hit2); // Constructor from two HitForRec's
27 // Inline functions for Get and Set
28 AliMUONHitForRec* GetHitForRec1(void) const {return fHitForRecPtr1;}
29 AliMUONHitForRec* GetHitForRec2(void) const {return fHitForRecPtr2;}
30 Double_t GetBendingCoor(void) const {return fBendingCoor;}
31 void SetBendingCoor(Double_t BendingCoor) {fBendingCoor = BendingCoor;}
32 Double_t GetBendingSlope(void) const {return fBendingSlope;}
33 void SetBendingSlope(Double_t BendingSlope) {fBendingSlope = BendingSlope;}
34 Double_t GetNonBendingCoor(void) const {return fNonBendingCoor;}
35 void SetNonBendingCoor(Double_t NonBendingCoor) {fNonBendingCoor = NonBendingCoor;}
36 Double_t GetNonBendingSlope(void) const {return fNonBendingSlope;}
37 void SetNonBendingSlope(Double_t NonBendingSlope) {fNonBendingSlope = NonBendingSlope;}
38 Double_t GetBendingCoorReso2(void) const {return fBendingCoorReso2;}
39 void SetBendingCoorReso2(Double_t BendingCoorReso2) {fBendingCoorReso2 = BendingCoorReso2;}
40 Double_t GetNonBendingCoorReso2(void) const {return fNonBendingCoorReso2;}
41 void SetNonBendingCoorReso2(Double_t NonBendingCoorReso2) {fNonBendingCoorReso2 = NonBendingCoorReso2;}
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 (Int_t Station, Double_t MCSfactor);
47 Double_t NormalizedChi2WithSegment(AliMUONSegment* Segment, Double_t Sigma2Cut);
48 AliMUONHitForRec* CreateHitForRecFromLinearExtrapToChamber (Int_t Chamber, Double_t MCSfactor);
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
56 AliMUONHitForRec* fHitForRecPtr1; // pointer to HitForRec in first chamber
57 AliMUONHitForRec* fHitForRecPtr2; // pointer to HitForRec in second chamber
59 Double_t fBendingCoor; // Coordinate in bending plane
60 Double_t fBendingSlope; // Slope in bending plane
61 // Covariance in bending plane:
62 Double_t fBendingCoorReso2; // Covariance(coordinate C1 in first chamber)
63 Double_t fBendingSlopeReso2; // Covariance(slope)
64 Double_t fBendingCoorSlopeReso2; // Covariance(C1,slope)
65 Double_t fBendingImpact; // Impact parameter in bending plane
67 Double_t fNonBendingCoor; // Coordinate in non bending plane
68 Double_t fNonBendingSlope; // Slope in non bending plane
69 // Covariance in non bending plane:
70 Double_t fNonBendingCoorReso2; // Covariance(coordinate C1 in first chamber)
71 Double_t fNonBendingSlopeReso2; // Covariance(slope)
72 Double_t fNonBendingCoorSlopeReso2; // Covariance(C1,slope)
73 Double_t fNonBendingImpact; // Impact parameter in non bending plane
74 Bool_t fInTrack; // TRUE if segment belongs to one track
76 ClassDef(AliMUONSegment, 1) // Segment for reconstruction in ALICE dimuon spectrometer