1 #ifndef ALIKALMANTRACK_H
2 #define ALIKALMANTRACK_H
4 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
5 * See cxx source for full Copyright notice */
9 //-------------------------------------------------------------------------
10 // Class AliKalmanTrack
11 // fixed the interface for the derived reconstructed track classes
12 // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
13 //-------------------------------------------------------------------------
16 #include "AliESDtrack.h"
20 class AliKalmanTrack : public TObject {
23 AliKalmanTrack(const AliKalmanTrack &t);
25 virtual ~AliKalmanTrack(){};
26 void SetLabel(Int_t lab) {fLab=lab;}
27 void SetFakeRatio(Float_t ratio) {fFakeRatio=ratio;}
29 Bool_t IsSortable() const {return kTRUE;}
30 Int_t GetLabel() const {return fLab;}
31 Float_t GetFakeRatio() const {return fFakeRatio;}
32 Double_t GetChi2() const {return fChi2;}
33 Double_t GetMass() const {return fMass;}
34 Int_t GetNumberOfClusters() const {return fN;}
35 virtual Int_t GetClusterIndex(Int_t) const { //reserved for AliTracker
36 Warning("GetClusterIndex(Int_t)","Method must be overloaded !\n");
39 virtual Double_t GetPIDsignal() const {
40 Warning("GetPIDsignal()","Method must be overloaded !\n");
44 virtual Double_t GetDCA(const AliKalmanTrack *p,Double_t &xthis,Double_t &xp) const;
46 Double_t PropagateToDCA(AliKalmanTrack *p, Double_t d=0., Double_t x0=0.);
47 virtual Double_t GetAlpha() const {
48 Warning("GetAlpha()","Method must be overloaded !\n");
51 virtual Double_t GetSigmaY2() const {
52 Warning("GetSigmaY2()","Method must be overloaded !\n");
55 virtual Double_t GetSigmaZ2() const {
56 Warning("GetSigmaZ2()","Method must be overloaded !\n");
60 virtual Int_t Compare(const TObject *) const {return 0;}
62 virtual void GetExternalParameters(Double_t &/*xr*/, Double_t /*x*/[5]) const {}
63 virtual void GetExternalCovariance(Double_t /*cov*/[15]) const {}
65 virtual Double_t GetX() const;
66 virtual Double_t GetdEdx() const;
68 virtual Double_t GetY() const;
69 virtual Double_t GetZ() const;
70 virtual Double_t GetSnp() const;
71 virtual Double_t GetTgl() const;
72 virtual Double_t Get1Pt() const;
74 virtual Double_t Phi() const;
75 virtual Double_t SigmaPhi() const;
76 virtual Double_t Theta() const;
77 virtual Double_t SigmaTheta() const;
78 virtual Double_t Eta() const;
79 virtual Double_t Px() const;
80 virtual Double_t Py() const;
81 virtual Double_t Pz() const;
82 virtual Double_t Pt() const;
83 virtual Double_t SigmaPt() const;
84 virtual Double_t P() const;
86 virtual Double_t GetPredictedChi2(const AliCluster *) const {return 0.;}
88 PropagateTo(Double_t /*xr*/, Double_t /*x0*/, Double_t /*rho*/) {return 0;}
89 virtual Int_t PropagateToVertex(Double_t /*d*/=0., Double_t /*x0*/=0.)
92 Update(const AliCluster*, Double_t /*chi2*/, UInt_t) {return 0;}
94 static void SetConvConst(Double_t cc) {fgConvConst=cc;}
95 static Double_t GetConvConst() {return fgConvConst;}
97 static void SetMagneticField(Double_t f) {// f - Magnetic field in T
98 fgConvConst=100/0.299792458/f;
100 Double_t GetMagneticField() const {return 100/0.299792458/fgConvConst;}
102 // Time integration (S.Radomski@gsi.de)
103 void StartTimeIntegral();
104 void SetIntegratedLength(Double_t l) {fIntegratedLength=l;}
105 void SetIntegratedTimes(const Double_t *times);
107 Bool_t IsStartedTimeIntegral() const {return fStartTimeIntegral;}
108 void AddTimeStep(Double_t length);
109 void GetIntegratedTimes(Double_t *times) const;
110 Double_t GetIntegratedTime(Int_t pdg) const;
111 Double_t GetIntegratedLength() const {return fIntegratedLength;}
112 void PrintTime() const;
115 void SetChi2(Double_t chi2) {fChi2=chi2;}
116 void SetMass(Double_t mass) {fMass=mass;}
117 void SetNumberOfClusters(Int_t n) {fN=n;}
119 Int_t fLab; // track label
120 Float_t fFakeRatio; // fake ratio
121 Double_t fChi2; // total chi2 value for this track
122 Double_t fMass; // mass hypothesis
123 Int_t fN; // number of associated clusters
125 static Double_t fgConvConst; //conversion constant cm -> GeV/c
127 // variables for time integration (S.Radomski@gsi.de)
128 static const Int_t fgkTypes = AliESDtrack::kSPECIES; // Number of track types (e,mu,pi,k,p)
129 Bool_t fStartTimeIntegral; // indicator wether integrate time
130 Double_t fIntegratedTime[5]; // integrated time
131 Double_t fIntegratedLength; // integrated length
133 ClassDef(AliKalmanTrack,3) // Reconstructed track