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Included also 3 and 4 prong decays; added variables to ntuple
[u/mrichter/AliRoot.git] / TRD / AliTRDtrack.h
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46d29e70 1#ifndef ALITRDTRACK_H
b3a5a838 2#define ALITRDTRACK_H
46d29e70 3
4/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
b3a5a838 5 * See cxx source for full Copyright notice */
46d29e70 6
15ed8ba1 7/* $Id$ */
46d29e70 8
53c17fbf 9///////////////////////////////////////////////////////////////////////////////
10// //
11// Represents a reconstructed TRD track //
12// //
13///////////////////////////////////////////////////////////////////////////////
46d29e70 14
6984f7c1 15#include "AliESDtrack.h"
15ed8ba1 16#include "AliKalmanTrack.h"
fe33d239 17
15ed8ba1 18#include "AliTRDtracklet.h"
19
0906e73e 20#ifndef ALITRDSEEDV1_H
21#include "AliTRDseedV1.h"
22#endif
23
15ed8ba1 24class AliTrackReference;
dab811d0 25class AliTRDcluster;
7ad19338 26class AliTRDtrack : public AliKalmanTrack {
27eaf44b 27
28 public:
69dee759 29
30 enum { kMAXCLUSTERSPERTRACK = 210 };
53c17fbf 31
69dee759 32 enum { kNdet = 540
15ed8ba1 33 , kNstacks = 90
6984f7c1 34 , kNplane = AliESDtrack::kTRDnPlanes
15ed8ba1 35 , kNcham = 5
36 , kNsect = 18
44dbae42 37 , kNslice = 3
69dee759 38 , kNMLPslice = 8 };
44dbae42 39
40 enum AliTRDPIDMethod {
41 kNN = 0
69dee759 42 , kLQ = 1 };
43
44 AliTRDtrack();
45 AliTRDtrack(/*const*/ AliTRDcluster *c, Int_t index
46 , const Double_t xx[5], const Double_t cc[15]
47 , Double_t xr, Double_t alpha);
48 AliTRDtrack(const AliTRDtrack &t/*, const Bool_t owner = kTRUE*/);
49 AliTRDtrack(const AliESDtrack &t);
0906e73e 50 virtual ~AliTRDtrack();
69dee759 51 AliTRDtrack(const AliKalmanTrack &t, Double_t alpha);
52
53 void ResetClusters() { SetChi2(0.0);
54 SetNumberOfClusters(0); }
55 Int_t Compare(const TObject *o) const;
56 void AddNWrong() { fNWrong++; }
57 void IncCross() { fNCross++;
58 if (fBackupTrack)
59 fBackupTrack->IncCross(); }
60
61 Int_t GetSector() const;
62 Float_t GetClusterdQdl(Int_t i) const { return fdQdl[i]; }
63 Double_t GetdEdx() const { return fdEdx; }
64 Int_t GetNdedx() const { return fNdedx; }
65 Double_t GetPIDsignal() const { return GetdEdx(); }
66 Int_t GetClusterIndex(Int_t i) const { return fIndex[i]; }
9e9471d8 67 using AliExternalTrackParam::GetC;
69dee759 68 Double_t GetC() const { return AliExternalTrackParam
69 ::GetC(GetBz()); }
70 Double_t GetPredictedChi2(const AliTRDcluster *c
71 , Double_t h01) const;
72 AliTRDPIDMethod GetPIDMethod() const { return fPIDmethod; }
73 Float_t GetPIDsignals(Int_t iPlane
74 , Int_t iSlice) const { return fdEdxPlane[iPlane][iSlice]; }
75 Int_t GetPIDTimBin(Int_t i) const { return fTimBinPlane[i]; }
76 Double_t GetLikelihoodElectron() const { return fLhElectron; }
77 Int_t GetSeedLabel() const { return fSeedLab; }
78 Int_t *GetBackupIndexes() { return fIndexBackup; }
79 Int_t *GetIndexes() { return fIndex; }
80 Int_t GetProlongation(Double_t xk
81 , Double_t &y
82 , Double_t &z);
83 Bool_t GetStop() const { return fStopped; }
84 Int_t GetNRotate() const { return fNRotate; }
85 Int_t GetNWrong() const { return fNWrong; }
86 Int_t GetNCross() const { return fNCross; }
87 Int_t GetNExpected() const { return fNExpected; }
88 Int_t GetNLast() const { return fNLast; }
89 Int_t GetNExpectedLast() const { return fNExpectedLast; }
90 AliTRDtracklet GetTracklets(Int_t i) const { return fTracklets[i]; }
91 Float_t GetBudget(Int_t i) const { return fBudget[i]; }
92 Float_t GetChi2Last() const { return fChi2Last; }
93 AliTRDtrack *GetBackupTrack() { return fBackupTrack; }
0906e73e 94 // dummy to bridge the function in AliTRDtrackV1
95 //Int_t GetNumberOfClusters() const { printf("AliTRDtrack::GetNumberOfClusters()\n");
96 // return AliKalmanTrack::GetNumberOfClusters(); }
97 inline virtual Int_t GetNumberOfTracklets() const;
98 virtual Int_t GetTrackletIndex(Int_t plane) const { return plane>=0 && plane<6
99 ? fTrackletIndex[plane] : -1; }
100
69dee759 101
102 void SetdEdx(Double_t dedx) { fdEdx = dedx; }
103 void SetStop(Bool_t stop) { fStopped = stop; }
104 void SetPIDsignals(Float_t dedx
105 , Int_t iPlane
106 , Int_t iSlice) { fdEdxPlane[iPlane][iSlice] = dedx; }
107 void SetPIDTimBin(Int_t timbin, Int_t i) { fTimBinPlane[i] = timbin; }
108 void SetLikelihoodElectron(Float_t l) { fLhElectron = l; }
109 void SetSampledEdx(Float_t q, Int_t i);
110 void SetSampledEdx(Float_t q);
111 void SetSeedLabel(Int_t lab) { fSeedLab = lab; }
112 void SetNWrong(Int_t nwrong) { fNWrong = nwrong; }
113 void SetNCross(Int_t ncross) { fNCross = ncross; }
114 void SetNExpected(Int_t nexp) { fNExpected = nexp; }
115 void SetNLast(Int_t nlast) { fNLast = nlast; }
116 void SetNExpectedLast(Int_t nexp) { fNExpectedLast = nexp; }
117 void SetChi2Last(Float_t chi2) { fChi2Last = chi2; }
118 void SetTracklets(Int_t i, AliTRDtracklet t) { fTracklets[i] = t; }
119 void SetBudget(Int_t i, Float_t budget) { fBudget[i] = budget; }
120 void SetPIDMethod(AliTRDPIDMethod method) { fPIDmethod = method; }
121
122 void SetTrackSegmentDirMom(const Int_t plane);
123 void CookdEdx(Double_t low = 0.05, Double_t up = 0.7);
124 void CookdEdxTimBin(const Int_t tid);
125 Bool_t CookPID(Int_t &pidQuality);
126 void SetCluster(AliTRDcluster* cl
127 , Int_t index = -1) { fClusters[(index == -1)
128 ? GetNumberOfClusters()-1
129 : index] = cl; }
130 AliTRDcluster* GetCluster(Int_t layer) const { return (layer >= 0 &&
131 layer < GetNumberOfClusters())
132 ? fClusters[layer]
133 : 0x0; }
134 Float_t GetMomentumPlane(Int_t plane) const { return (plane >= 0 &&
135 plane < kNplane)
136 ? fMom[plane]
137 : 0.0; }
138 const Double_t* GetPID() const { return fPID; }
139 Float_t GetSnpPlane(Int_t plane) const { return (plane >= 0 &&
140 plane < kNplane)
141 ? fSnp[plane]
142 : 0.0; }
143 Float_t GetTglPlane(Int_t plane) const { return (plane >= 0 &&
144 plane < kNplane)
145 ? fTgl[plane]
146 : 0.0; }
147 Float_t GetTrackLengthPlane(Int_t plane) const;
148
149 void MakeBackupTrack();
150 Bool_t PropagateTo(Double_t xr, Double_t x0 = 8.72, Double_t rho = 5.86e-3);
151 Int_t PropagateToR(Double_t xr, Double_t step);
152 Int_t PropagateToX(Double_t xr, Double_t step);
153 Bool_t Rotate(Double_t angle, Bool_t absolute = kFALSE);
154 Float_t StatusForTOF();
155 Bool_t Update(const AliTRDcluster *c, Double_t chi2, Int_t index, Double_t h01);
156 Bool_t Update(const AliTRDtracklet &tracklet, Double_t chi2, Int_t index);
157 Int_t UpdateMI(/*const */AliTRDcluster *c, Double_t chi2
158 , Int_t index, Double_t h01
159 , Int_t plane, Int_t tid = 0);
160
161 protected:
162
163 AliTRDtrack &operator=(const AliTRDtrack &t);
164
165 void CookdEdxNN(Float_t *dedx);
166 Double_t GetBz() const;
167 Bool_t Update(const AliCluster */*c*/, Double_t /*chi2*/, Int_t /*idx*/) { return 0; }
168 Double_t GetPredictedChi2(const AliCluster* /*c*/) const { return 0.0; }
169
fe33d239 170 protected:
6c94f330 171
69dee759 172 Int_t fSeedLab; // Track label taken from seeding
173 Float_t fdEdx; // dE/dx (truncated mean)
174 Float_t fDE; // Integrated delta energy
175 Float_t fdEdxPlane[kNplane][kNslice]; // dE/dx from all 6 planes in 3 slices each
176 Int_t fTimBinPlane[kNplane]; // Time bin of Max cluster from all 6 planes
0906e73e 177 UChar_t fPIDquality; // No of planes used for PID calculation
69dee759 178 Double_t fPID[AliPID::kSPECIES]; // PID probabilities
69dee759 179 Float_t fMom[kNplane]; // Track momentum at chamber entrance
180 Float_t fSnp[kNplane]; // Track direction
181 Float_t fTgl[kNplane]; // Track direction
182 AliTRDcluster *fClusters[kMAXCLUSTERSPERTRACK]; // List of assigned clusters
183 Bool_t fClusterOwner; // Indicates the track is owner of cluster
184 AliTRDPIDMethod fPIDmethod; // Switch between different PID methods
185 Bool_t fStopped; // Track stop indication
186 Int_t fIndex[kMAXCLUSTERSPERTRACK]; // Global indexes of clusters
187 Int_t fIndexBackup[kMAXCLUSTERSPERTRACK]; // Backup indexes of clusters - used in iterations
188 Float_t fdQdl[kMAXCLUSTERSPERTRACK]; // Cluster amplitudes corrected for track angles
43bfc8af 189
69dee759 190 Float_t fLhElectron; // Likelihood to be an electron
191 Int_t fNWrong; // Number of wrong clusters
192 Int_t fNRotate; // Number of rotation
193 Int_t fNCross; // Number of the cross materials
194 Int_t fNExpected; // Expected number of cluster
195 Int_t fNLast; // Number of clusters in last 2 layers
196 Int_t fNExpectedLast; // Number of expected clusters on last 2 layers
197 Int_t fNdedx; // Number of clusters for dEdx measurment
198 Float_t fChi2Last; // Chi2 in the last 2 layers
199 AliTRDtracklet fTracklets[6]; // Tracklets
200 Float_t fBudget[3]; // Integrated material budget
201 AliTRDtrack *fBackupTrack; //! Backup track
0906e73e 202
203 Int_t fTrackletIndex[6]; // Tracklets index in the tracker list
204 AliTRDseedV1 fTracklet[6]; // Tracklets array defining the track
69dee759 205
206 ClassDef(AliTRDtrack,9) // TRD reconstructed tracks
46d29e70 207
53c17fbf 208};
46d29e70 209
0906e73e 210//___________________________________________________________
211inline Int_t AliTRDtrack::GetNumberOfTracklets() const
212{
213 Int_t ntrklt = 0;
214 for(int ip=0; ip<6; ip++) if(fTrackletIndex[ip] >= 0) ntrklt++;
215 return ntrklt;
216}
217
218
46d29e70 219#endif
9e9471d8 220