1 #ifndef ALITRDTRACKV1_H
2 #define ALITRDTRACKV1_H
3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
8 ///////////////////////////////////////////////////////////////////////////////
10 // Represents a reconstructed TRD track //
12 ///////////////////////////////////////////////////////////////////////////////
14 #ifndef ALIKALMANTRACK_H
15 #include "AliKalmanTrack.h"
19 #include "AliESDtrack.h"
22 #ifndef ALITRDSEEDV1_H
23 #include "AliTRDseedV1.h"
28 class AliTRDReconstructor;
29 class AliTRDtrackV1 : public AliKalmanTrack
32 enum { kMAXCLUSTERSPERTRACK = 210 };
36 , kNplane = AliESDtrack::kTRDnPlanes
42 // bits from 0-13 are reserved by ROOT (see TObject.h)
43 enum AliTRDtrackStatus {
49 AliTRDtrackV1(AliTRDseedV1 *trklts, const Double_t p[5], const Double_t cov[15], Double_t x, Double_t alpha);
50 AliTRDtrackV1(const AliESDtrack &ref);
51 AliTRDtrackV1(const AliTRDtrackV1 &ref);
52 virtual ~AliTRDtrackV1();
53 AliTRDtrackV1 &operator=(const AliTRDtrackV1 &ref) { *(new(this) AliTRDtrackV1(ref)); return *this; }
56 Bool_t CookLabel(Float_t wrong);
57 AliTRDtrackV1* GetBackupTrack() const {return fBackupTrack;}
58 Double_t GetBudget(Int_t i) const { return fBudget[i];}
59 Double_t GetC() const { return AliExternalTrackParam::GetC(GetBz());}
60 AliTRDcluster* GetCluster(Int_t id);
61 Int_t GetClusterIndex(Int_t id) const;
62 Float_t GetEdep() const {return fDE;}
63 inline Float_t GetMomentum(Int_t plane) const;
64 inline Int_t GetNCross();
65 inline Int_t GetNumberOfTracklets() const;
66 Double_t GetPIDsignal() const { return 0.;}
67 Double_t GetPID(Int_t is) const { return (is >=0 && is < AliPID::kSPECIES) ? fPID[is] : -1.;}
68 UChar_t GetPIDquality() const { return fPIDquality;}
69 Double_t GetPredictedChi2(const AliTRDseedV1 *tracklet) const;
70 Double_t GetPredictedChi2(const AliCluster* /*c*/) const { return 0.0; }
71 Int_t GetProlongation(Double_t xk, Double_t &y, Double_t &z);
72 AliTRDseedV1* GetTracklet(Int_t plane) const {return plane >=0 && plane <kNplane ? fTracklet[plane] : 0x0;}
73 Int_t GetTrackletIndex(Int_t plane) const { return (plane>=0 && plane<kNplane) ? fTrackletIndex[plane] : -1;}
74 UShort_t* GetTrackletIndexes() {return &fTrackletIndex[0];}
76 Bool_t IsOwner() const {return TestBit(kOwner);};
77 Bool_t IsStopped() const {return TestBit(kStopped);};
78 Bool_t IsElectron() const;
80 void MakeBackupTrack();
81 Bool_t PropagateTo(Double_t xr, Double_t x0 = 8.72, Double_t rho = 5.86e-3);
82 Int_t PropagateToR(Double_t xr, Double_t step);
83 Bool_t Rotate(Double_t angle, Bool_t absolute = kFALSE);
84 void SetBudget(Int_t i, Double_t b) {if(i>=0 && i<3) fBudget[i] = b;}
85 void SetNumberOfClusters();
87 void SetStopped(Bool_t stop) {SetBit(kStopped, stop);}
88 void SetTracklet(AliTRDseedV1 *trklt, Int_t index);
89 inline void SetReconstructor(const AliTRDReconstructor *rec);
90 inline Float_t StatusForTOF();
91 void UnsetTracklet(Int_t plane);
92 Bool_t Update(AliTRDseedV1 *tracklet, Double_t chi2);
93 //Bool_t Update(const AliTRDcluster *c, Double_t chi2, Int_t index, Double_t h01){ return AliTRDtrack::Update(c,chi2,index,h01); };
94 Bool_t Update(const AliCluster *, Double_t, Int_t) { return kFALSE; };
95 void UpdateESDtrack(AliESDtrack *t);
98 Double_t GetBz() const;
101 UChar_t fPIDquality; // No of planes used for PID calculation
102 UShort_t fTrackletIndex[kNplane];// Tracklets index in the tracker list
103 Double32_t fPID[AliPID::kSPECIES];// PID probabilities
104 Double32_t fBudget[3]; // Integrated material budget
105 Double32_t fDE; // Integrated delta energy
106 AliTRDseedV1 *fTracklet[kNplane]; // Tracklets array defining the track
107 AliTRDtrackV1 *fBackupTrack; // Backup track
110 ClassDef(AliTRDtrackV1, 2) // new TRD track
113 //____________________________________________________
114 inline Float_t AliTRDtrackV1::GetMomentum(Int_t plane) const
116 return plane >=0 && plane < kNplane && fTrackletIndex[plane] != 0xff ? fTracklet[plane]->GetMomentum() : -1.;
119 //____________________________________________________
120 inline Int_t AliTRDtrackV1::GetNCross()
123 for(Int_t ip=0; ip<kNplane; ip++){
124 if(!fTracklet[ip]) continue;
125 ncross += fTracklet[ip]->IsRowCross();
130 //____________________________________________________
131 inline Int_t AliTRDtrackV1::GetNumberOfTracklets() const
134 for(Int_t ip=0; ip<kNplane; ip++){
135 if(!fTracklet[ip]) continue;
142 //____________________________________________________
143 inline void AliTRDtrackV1::SetReconstructor(const AliTRDReconstructor *rec)
145 for(Int_t ip=0; ip<kNplane; ip++){
146 if(!fTracklet[ip]) continue;
147 fTracklet[ip]->SetReconstructor(rec);
152 //____________________________________________________________________________
153 inline Float_t AliTRDtrackV1::StatusForTOF()
156 // Defines the status of the TOF extrapolation
159 if(!fTracklet[5]) return 0.;
161 // Definition of res ????
162 Float_t res = /*(0.2 + 0.8 * (fN / (fNExpected + 5.0))) **/ (0.4 + 0.6 * fTracklet[5]->GetN() / 20.0);
163 res *= (0.25 + 0.8 * 40.0 / (40.0 + fBudget[2]));