Limited pT range for parameterized Upsilon and J/Psi pT distributions.
[u/mrichter/AliRoot.git] / STEER / AliKalmanTrack.h
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87594435 1#ifndef ALIKALMANTRACK_H
2#define ALIKALMANTRACK_H
3
4/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
5 * See cxx source for full Copyright notice */
6
fb17acd4 7/* $Id$ */
8
87594435 9//-------------------------------------------------------------------------
10// Class AliKalmanTrack
11//
12// Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
13//-------------------------------------------------------------------------
14
15#include <TObject.h>
16
17class AliCluster;
18
19class AliKalmanTrack : public TObject {
20public:
e2afb3b6 21 AliKalmanTrack();
22 AliKalmanTrack(const AliKalmanTrack &t);
23
be9c5115 24 virtual ~AliKalmanTrack(){};
25 void SetLabel(Int_t lab) {fLab=lab;}
26
27 Bool_t IsSortable() const {return kTRUE;}
28 Int_t GetLabel() const {return fLab;}
29 Double_t GetChi2() const {return fChi2;}
7f6ddf58 30 Double_t GetMass() const {return fMass;}
be9c5115 31 Int_t GetNumberOfClusters() const {return fN;}
e2afb3b6 32 virtual Int_t GetClusterIndex(Int_t) const { //reserved for AliTracker
33 Warning("GetClusterIndex(Int_t)","Method must be overloaded !\n");
be9c5115 34 return 0;
35 }
36
e2afb3b6 37 virtual Int_t Compare(const TObject *) const {return 0;}
be9c5115 38
e2afb3b6 39 virtual void GetExternalParameters(Double_t &/*xr*/, Double_t /*x*/[5]) const {}
40 virtual void GetExternalCovariance(Double_t /*cov*/[15]) const {}
be9c5115 41
e2afb3b6 42 virtual Double_t GetPredictedChi2(const AliCluster *) const {return 0.;}
be9c5115 43 virtual
e2afb3b6 44 Int_t PropagateTo(Double_t /*xr*/, Double_t /*x0*/, Double_t /*rho*/) {return 0;}
45 virtual Int_t Update(const AliCluster*, Double_t /*chi2*/, UInt_t) {return 0;}
be9c5115 46
116cbefd 47 static void SetConvConst(Double_t cc) {fgConvConst=cc;}
48 Double_t GetConvConst() const {return fgConvConst;}
9b280d80 49
e1a65e92 50 static void SetMagneticField(Double_t f) {// f - Magnetic field in T
116cbefd 51 fgConvConst=100/0.299792458/f;
e1a65e92 52 }
116cbefd 53 Double_t GetMagneticField() const {return 100/0.299792458/fgConvConst;}
e1a65e92 54
74f9526e 55 // Time integration
56 void StartTimeIntegral();
57 Bool_t IsStartedTimeIntegral() const {return fStartTimeIntegral;}
58 void AddTimeStep(Double_t length);
59 Double_t GetIntegratedTime(Int_t pdg) const;
60 Double_t GetIntegratedLength() const {return fIntegratedLength;}
61 void PrintTime() const;
62
63
be9c5115 64protected:
65 void SetChi2(Double_t chi2) {fChi2=chi2;}
7f6ddf58 66 void SetMass(Double_t mass) {fMass=mass;}
be9c5115 67 void SetNumberOfClusters(Int_t n) {fN=n;}
68
69private:
87594435 70 Int_t fLab; // track label
87594435 71 Double_t fChi2; // total chi2 value for this track
7f6ddf58 72 Double_t fMass; // mass hypothesis
be9c5115 73 Int_t fN; // number of associated clusters
87594435 74
116cbefd 75 static Double_t fgConvConst; //conversion constant cm -> GeV/c
9b280d80 76
74f9526e 77 // variables for time integration
5d8718b8 78 static const Int_t fgkTypes = 5; // Number of track types (e,mu,pi,k,p)
74f9526e 79 Bool_t fStartTimeIntegral; // indicator wether integrate time
80 Float_t fIntegratedTime[5]; // intgrated time
5d8718b8 81 Float_t fIntegratedLength; // integrated length
74f9526e 82
83 ClassDef(AliKalmanTrack,2) // Reconstructed track
87594435 84};
85
86#endif
87
88