Modified for CAF
[u/mrichter/AliRoot.git] / ITS / AliITStrackMI.h
CommitLineData
15dd636f 1#ifndef ALIITSTRACKMI_H
2#define ALIITSTRACKMI_H
3/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
5
6//-------------------------------------------------------------------------
7// ITS Track Class
8//
9// Origin: Marian Ivanov, CERN, Marian.Ivanov@cern.ch
10// dEdx analysis by: Boris Batyunya, JINR, Boris.Batiounia@cern.ch
11//-------------------------------------------------------------------------
12
13
14/*****************************************************************************
15 * December 18, 2000 *
16 * Internal view of the ITS track parametrisation as well as the order of *
17 * track parameters are subject for possible changes ! *
18 * Use GetExternalParameters() and GetExternalCovariance() to access ITS *
19 * track information regardless of its internal representation. *
20 * This formation is now fixed in the following way: *
21 * external param0: local Y-coordinate of a track (cm) *
22 * external param1: local Z-coordinate of a track (cm) *
23 * external param2: local sine of the track momentum azimuthal angle *
24 * external param3: tangent of the track momentum dip angle *
25 * external param4: 1/pt (1/(GeV/c)) *
26 *****************************************************************************/
27
28#include <AliKalmanTrack.h>
29
30#include "AliITSrecoV2.h"
31#include "AliITStrackV2.h"
32
33class AliESDtrack;
34
35//_____________________________________________________________________________
36class AliITStrackMI : public AliITStrackV2 {
37 friend class AliITStrackerV2;
38 friend class AliITStrackerMI;
39public:
40 AliITStrackMI();
41 AliITStrackMI(AliESDtrack& t,Bool_t c=kFALSE) throw (const Char_t *);
42 AliITStrackMI(const AliITStrackMI& t);
43 Int_t GetProlongationFast(Double_t alpha, Double_t xr,Double_t &y, Double_t &z);
6c94f330 44 Bool_t UpdateMI(Double_t cy, Double_t cz, Double_t cerry, Double_t cerrz, Double_t chi2, Int_t i);
15dd636f 45 Int_t CorrectForMaterial(Double_t d, Double_t x0=21.82);
46
47 void UpdateESDtrack(ULong_t flags);
48
49 void SetReconstructed(Bool_t sr=kTRUE){fReconstructed = sr;}
50 Bool_t GetReconstructed() const {return fReconstructed;}
51 void SetChi2MIP(Int_t i,Float_t val){fChi2MIP[i]=val;}
52 Float_t GetChi2MIP(Int_t i) const {return fChi2MIP[i];}
53 void IncrementNSkipped(){fNSkipped++;} // increment by 1 the # of skipped cls
54 Float_t GetNSkipped() const {return fNSkipped;}
55 void IncrementNUsed(){fNUsed++;} // increment by 1 the # of shared clusters
56 Float_t GetNUsed() const {return fNUsed;}
57
58 Int_t Compare(const TObject *o) const;
6c94f330 59 Double_t GetCov33() const {return GetCovariance()[9];} // cov. matrix el. 3,3
60 //Double_t GetCov44() const {return GetCovariance()[15];}// cov. matrix el. 4,4
15dd636f 61 Float_t GetDy(Int_t i) const {return fDy[i];}
62 Float_t GetDz(Int_t i) const {return fDz[i];}
63 Float_t GetSigmaY(Int_t i) const {return fSigmaY[i];}
64 Float_t GetSigmaZ(Int_t i) const {return fSigmaZ[i];}
65
66 Double_t GetPredictedChi2MI(Double_t cy, Double_t cz, Double_t cerry, Double_t cerrz) const;
628e7bb0 67 Bool_t IsGoldPrimary();
15dd636f 68protected:
69
70 Float_t fNUsed; // number of shared clusters
71 Float_t fNSkipped; // number of skipped clusters
72 Float_t fNDeadZone; // number of clusters in dead zone
73 Float_t fDeadZoneProbability; // probability to cross dead zone
628e7bb0 74 Bool_t fReconstructed; // reconstructed - accepted flag
15dd636f 75 Float_t fChi2MIP[12]; // MIP chi squres
76
77 Float_t fDy[12]; //dy in layer
78 Float_t fDz[12]; //dz in layer
79 Float_t fSigmaY[12]; //sigma y
80 Float_t fSigmaZ[12]; //sigma z
81 Float_t fNy[6]; //expected size of cluster
82 Float_t fNz[6]; //expected size of cluster
83 Float_t fD[2]; //distance to the vertex
628e7bb0 84 Float_t fDnorm[2]; // normalized distance to the vertex
15dd636f 85 Float_t fNormQ[6]; // normalized Q
86 Float_t fExpQ; // expected Q
87 Float_t fNormChi2[6]; // normalized chi2
88 Float_t fChi22; // chi22
89 Float_t fdEdxMismatch;
90 Bool_t fConstrain; //indication of the vertex constrain
91 Int_t fClIndex[6]; //cluster Index
628e7bb0 92 Bool_t fGoldV0; //corresponding gold V0 found
15dd636f 93 ClassDef(AliITStrackMI,1) //ITS reconstructed track
94};
95
96#endif
97
98