1 #ifndef ALIESDMUONTRACK_H
2 #define ALIESDMUONTRACK_H
4 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
5 * See cxx source for full Copyright notice */
9 // Class to describe the MUON tracks
10 // in the Event Summary Data class
16 #include <TDatabasePDG.h>
18 #include "AliVParticle.h"
22 class AliESDMuonTrack : public AliVParticle {
24 AliESDMuonTrack(); //Constructor
25 virtual ~AliESDMuonTrack(){} // Destructor
26 AliESDMuonTrack(const AliESDMuonTrack& esdm);
27 AliESDMuonTrack& operator=(const AliESDMuonTrack& esdm);
30 // Get and Set methods for data at vertex
31 Double_t GetInverseBendingMomentum(void) const {return fInverseBendingMomentum;}
32 void SetInverseBendingMomentum(Double_t InverseBendingMomentum)
33 {fInverseBendingMomentum = InverseBendingMomentum;}
34 Double_t GetThetaX(void) const {return fThetaX;}
35 void SetThetaX(Double_t ThetaX) {fThetaX = ThetaX;}
36 Double_t GetThetaY(void) const {return fThetaY;}
37 void SetThetaY(Double_t ThetaY) {fThetaY = ThetaY;}
38 Double_t GetZ(void) const {return fZ;}
39 void SetZ(Double_t Z) {fZ = Z;}
40 Double_t GetBendingCoor(void) const {return fBendingCoor;}
41 void SetBendingCoor(Double_t BendingCoor) {fBendingCoor = BendingCoor;}
42 Double_t GetNonBendingCoor(void) const {return fNonBendingCoor;}
43 void SetNonBendingCoor(Double_t NonBendingCoor) {fNonBendingCoor = NonBendingCoor;}
45 // Get and Set methods for data at first station
46 Double_t GetInverseBendingMomentumUncorrected(void) const {return fInverseBendingMomentumUncorrected;}
47 void SetInverseBendingMomentumUncorrected(Double_t InverseBendingMomentum)
48 {fInverseBendingMomentumUncorrected = InverseBendingMomentum;}
49 Double_t GetThetaXUncorrected(void) const {return fThetaXUncorrected;}
50 void SetThetaXUncorrected(Double_t ThetaX) {fThetaXUncorrected = ThetaX;}
51 Double_t GetThetaYUncorrected(void) const {return fThetaYUncorrected;}
52 void SetThetaYUncorrected(Double_t ThetaY) {fThetaYUncorrected = ThetaY;}
53 Double_t GetZUncorrected(void) const {return fZUncorrected;}
54 void SetZUncorrected(Double_t Z) {fZUncorrected = Z;}
55 Double_t GetBendingCoorUncorrected(void) const {return fBendingCoorUncorrected;}
56 void SetBendingCoorUncorrected(Double_t BendingCoor) {fBendingCoorUncorrected = BendingCoor;}
57 Double_t GetNonBendingCoorUncorrected(void) const {return fNonBendingCoorUncorrected;}
58 void SetNonBendingCoorUncorrected(Double_t NonBendingCoor) {fNonBendingCoorUncorrected = NonBendingCoor;}
60 // Get and Set methods for covariance matrix of data at first station
61 void GetCovariances(TMatrixD& cov) const;
62 void SetCovariances(const TMatrixD& cov);
63 void GetCovarianceXYZPxPyPz(Double_t cov[21]) const;
65 // Get and Set methods for global tracking info
66 Double_t GetChi2(void) const {return fChi2;}
67 void SetChi2(Double_t Chi2) {fChi2 = Chi2;}
68 UChar_t GetNHit(void) const {return fNHit;}
69 void SetNHit(UInt_t NHit) {fNHit = NHit;}
71 // Get and Set methods for trigger matching
72 Int_t GetMatchTrigger() const;
73 Double_t GetChi2MatchTrigger() const {return fChi2MatchTrigger;}
74 void SetChi2MatchTrigger(Double_t Chi2MatchTrigger) {fChi2MatchTrigger = Chi2MatchTrigger;}
75 UShort_t GetHitsPatternInTrigCh() const {return fHitsPatternInTrigCh;}
76 void SetHitsPatternInTrigCh(UShort_t hitsPatternInTrigCh) {fHitsPatternInTrigCh = hitsPatternInTrigCh;}
77 void SetLocalTrigger(Int_t locTrig) { fLocalTrigger = locTrig; }
78 Int_t LoCircuit(void) const { return fLocalTrigger & 0xFF; }
79 Int_t LoStripX(void) const { return fLocalTrigger >> 8 & 0x1F; }
80 Int_t LoStripY(void) const { return fLocalTrigger >> 13 & 0x0F; }
81 Int_t LoDev(void) const { return fLocalTrigger >> 17 & 0x1F; }
82 Int_t LoLpt(void) const { return fLocalTrigger >> 22 & 0x03; }
83 Int_t LoHpt(void) const { return fLocalTrigger >> 24 & 0x03; }
85 // Get and Set methods for muon cluster map
86 UInt_t GetMuonClusterMap() const {return fMuonClusterMap;}
87 void SetMuonClusterMap(UInt_t muonClusterMap) {fMuonClusterMap = muonClusterMap;}
88 void AddInMuonClusterMap(Int_t chamber);
89 Bool_t IsInMuonClusterMap(Int_t chamber) const;
91 // Methods to compute track momentum
96 void LorentzP(TLorentzVector& vP) const;
97 Double_t PxUncorrected() const;
98 Double_t PyUncorrected() const;
99 Double_t PzUncorrected() const;
100 Double_t PUncorrected() const;
101 void LorentzPUncorrected(TLorentzVector& vP) const;
103 // additional methods to comply with AliVParticle
104 Double_t Pt() const { return TMath::Sqrt(Px()*Px() + Py()*Py()); }
105 Double_t OneOverPt() const { return 1./Pt(); }
106 Double_t Phi() const { return TMath::ATan2(Py(), Px()); }
107 Double_t Theta() const { return TMath::ATan2(Pt(), Pz()); }
108 Double_t E() const { return TMath::Sqrt(M()*M() + P()*P()); }
109 Double_t M() const { return TDatabasePDG::Instance()->GetParticle("mu-")->Mass(); }
110 Double_t Eta() const { return -TMath::Log(TMath::Tan(0.5 * Theta()));}
111 Double_t Y() const { return TMath::ATanH(Pz()/E()); }
112 Short_t Charge() const { return (Short_t)TMath::Sign(1., GetInverseBendingMomentum()); }
113 const Double_t *PID() const { return (Double_t*)0x0; }
117 // parameters at vertex
118 Double32_t fInverseBendingMomentum; ///< Inverse bending momentum (GeV/c ** -1) times the charge
119 Double32_t fThetaX; ///< Angle of track at vertex in X direction (rad)
120 Double32_t fThetaY; ///< Angle of track at vertex in Y direction (rad)
121 Double32_t fZ; ///< Z coordinate (cm)
122 Double32_t fBendingCoor; ///< bending coordinate (cm)
123 Double32_t fNonBendingCoor; ///< non bending coordinate (cm)
125 // parameters at first tracking station
126 Double32_t fInverseBendingMomentumUncorrected; ///< Inverse bending momentum (GeV/c ** -1) times the charge
127 Double32_t fThetaXUncorrected; ///< Angle of track at vertex in X direction (rad)
128 Double32_t fThetaYUncorrected; ///< Angle of track at vertex in Y direction (rad)
129 Double32_t fZUncorrected; ///< Z coordinate (cm)
130 Double32_t fBendingCoorUncorrected; ///< bending coordinate (cm)
131 Double32_t fNonBendingCoorUncorrected; ///< non bending coordinate (cm)
133 /// reduced covariance matrix of UNCORRECTED track parameters, ordered as follow: <pre>
135 /// [1] =<X,ThetaX> [2] =<ThetaX,ThetaX>
136 /// [3] = <X,Y> [4] = <Y,ThetaX> [5] = <Y,Y>
137 /// [6] =<X,ThetaY> [7] =<ThetaX,ThetaY> [8] =<Y,ThetaY> [9] =<ThetaY,ThetaY>
138 /// [10]=<X,InvP_yz> [11]=<ThetaX,InvP_yz> [12]=<Y,InvP_yz> [13]=<ThetaY,InvP_yz> [14]=<InvP_yz,InvP_yz> </pre>
139 Double32_t fCovariances[15]; ///< \brief reduced covariance matrix of parameters AT FIRST CHAMBER
141 // global tracking info
142 Double32_t fChi2; ///< chi2 in the MUON track fit
143 Double32_t fChi2MatchTrigger; ///< chi2 of trigger/track matching
144 Int_t fLocalTrigger; ///< packed local trigger information
146 UInt_t fMuonClusterMap; ///< Map of clusters in tracking chambers
147 UShort_t fHitsPatternInTrigCh; ///< Word containing info on the hits left in trigger chambers
148 UChar_t fNHit; ///< number of hit in the track
151 ClassDef(AliESDMuonTrack,8) // MUON ESD track class