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[u/mrichter/AliRoot.git] / STEER / AliESDtrack.h
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ae982df3 1#ifndef ALIESDTRACK_H
2#define ALIESDTRACK_H
3/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
5
ac3faee4 6/* $Id$ */
7
ae982df3 8//-------------------------------------------------------------------------
9// Class AliESDtrack
15614b8b 10// This is the class to deal with during the physics analysis of data
ae982df3 11//
12// Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
13//-------------------------------------------------------------------------
23904d16 14/*****************************************************************************
15 * Use GetExternalParameters() and GetExternalCovariance() to access the *
16 * track information regardless of its internal representation. *
17 * This formation is now fixed in the following way: *
18 * external param0: local Y-coordinate of a track (cm) *
19 * external param1: local Z-coordinate of a track (cm) *
20 * external param2: local sine of the track momentum azimuthal angle *
21 * external param3: tangent of the track momentum dip angle *
22 * external param4: 1/pt (1/(GeV/c)) *
23 *****************************************************************************/
ac3faee4 24
a866ac60 25#include <TBits.h>
ac3faee4 26#include <TObject.h>
304864ab 27#include "AliPID.h"
f6956857 28#include <TVector3.h>
29
ae982df3 30class AliKalmanTrack;
98937d93 31class AliTrackPointArray;
ae982df3 32
eab5961e 33const Int_t kNPlane = 6;
34
ae982df3 35class AliESDtrack : public TObject {
36public:
37 AliESDtrack();
c4d11b15 38 AliESDtrack(const AliESDtrack& track);
51ad6848 39 virtual ~AliESDtrack();
9559cbc4 40 void MakeMiniESDtrack();
51ad6848 41 void SetID(Int_t id) { fID =id;}
42 Int_t GetID(){ return fID;}
ae982df3 43 void SetStatus(ULong_t flags) {fFlags|=flags;}
44 void ResetStatus(ULong_t flags) {fFlags&=~flags;}
15614b8b 45 Bool_t UpdateTrackParams(const AliKalmanTrack *t, ULong_t flags);
399fb957 46 void SetImpactParameters(Float_t xy,Float_t z) {fD=xy; fZ=z;}
ae982df3 47 void SetIntegratedLength(Double_t l) {fTrackLength=l;}
48 void SetIntegratedTimes(const Double_t *times);
8c6a71ab 49 void SetESDpid(const Double_t *p);
50 void GetESDpid(Double_t *p) const;
ae982df3 51
52 ULong_t GetStatus() const {return fFlags;}
53 Int_t GetLabel() const {return fLabel;}
a33a2f3d 54 void SetLabel(Int_t label) {fLabel = label;}
ae982df3 55 Double_t GetAlpha() const {return fRalpha;}
56 void GetExternalParameters(Double_t &x, Double_t p[5]) const;
57 void GetExternalCovariance(Double_t cov[15]) const;
23904d16 58
c84a5e9e 59 Bool_t GetExternalParametersAt(Double_t x, Double_t b, Double_t p[5]) const;
60 Bool_t GetPxPyPzAt(Double_t x, Double_t b, Double_t p[3]) const;
61 Bool_t GetXYZAt(Double_t x, Double_t b, Double_t r[3]) const;
23904d16 62
399fb957 63 void GetImpactParameters(Float_t &xy,Float_t &z) const {xy=fD; z=fZ;}
c84a5e9e 64 Double_t GetD(Double_t b, Double_t x=0, Double_t y=0) const;
ae982df3 65 Double_t GetIntegratedLength() const {return fTrackLength;}
66 void GetIntegratedTimes(Double_t *times) const;
4a78b8c5 67 Double_t GetMass() const;
ae982df3 68 Double_t GetP() const;
09c96efc 69 Bool_t GetPxPyPz(Double_t *p) const;
f6956857 70 TVector3 P3() const {Double_t p[3]; GetPxPyPz(p); return TVector3(p[0],p[1],p[2]);} //running track momentum
09c96efc 71 Bool_t GetXYZ(Double_t *r) const;
f6956857 72 TVector3 X3() const {Double_t x[3]; GetXYZ(x); return TVector3(x[0],x[1],x[2]);} //running track position
b322ab2f 73 void GetCovariance(Double_t cov[21]) const;
9f64824b 74 Int_t GetSign() const {return (fRp[4]>0) ? 1 : -1;}
ae982df3 75
5ccd1720 76 void SetConstrainedTrackParams(const AliKalmanTrack *t, Double_t chi2);
67c3dcbe 77
78 Double_t GetConstrainedAlpha() const {return fCalpha;}
79 Double_t GetConstrainedChi2() const {return fCchi2;}
80 void GetConstrainedExternalParameters(Double_t &x, Double_t p[5]) const;
81 void GetConstrainedExternalCovariance(Double_t cov[15]) const;
82
09c96efc 83 Bool_t GetConstrainedPxPyPz(Double_t *p) const;
84 Bool_t GetConstrainedXYZ(Double_t *r) const;
67c3dcbe 85
09c96efc 86 Bool_t GetInnerPxPyPz(Double_t *p) const;
87 Bool_t GetInnerXYZ(Double_t *r) const;
a866ac60 88 void GetInnerExternalParameters(Double_t &x, Double_t p[5]) const;//skowron
89 void GetInnerExternalCovariance(Double_t cov[15]) const;//skowron
90 Double_t GetInnerAlpha() const {return fIalpha;}
98937d93 91
92 Int_t GetNcls(Int_t idet) const;
93 Int_t GetClusters(Int_t idet, UInt_t *idx) const;
94
c630aafd 95 void SetITSpid(const Double_t *p);
babd135a 96 void SetITSChi2MIP(const Float_t *chi2mip);
c4d11b15 97 void SetITStrack(AliKalmanTrack * track){fITStrack=track;}
c630aafd 98 void GetITSpid(Double_t *p) const;
ae982df3 99 Float_t GetITSsignal() const {return fITSsignal;}
13da10da 100 Float_t GetITSchi2() const {return fITSchi2;}
ae982df3 101 Int_t GetITSclusters(UInt_t *idx) const;
6e5b1b04 102 Int_t GetITSLabel() const {return fITSLabel;}
babd135a 103 Float_t GetITSFakeRatio() const {return fITSFakeRatio;}
c4d11b15 104 AliKalmanTrack * GetITStrack(){return fITStrack;}
ae982df3 105
13da10da 106 void SetTPCpid(const Double_t *p);
107 void GetTPCpid(Double_t *p) const;
51ad6848 108 void SetTPCPoints(Float_t points[4]){for (Int_t i=0;i<4;i++) fTPCPoints[i]=points[i];}
98937d93 109 Float_t GetTPCPoints(Int_t i){return fTPCPoints[i];}
51ad6848 110 void SetKinkIndexes(Int_t points[3]) {for (Int_t i=0;i<3;i++) fKinkIndexes[i] = points[i];}
111 void SetV0Indexes(Int_t points[3]) {for (Int_t i=0;i<3;i++) fV0Indexes[i] = points[i];}
13da10da 112 Float_t GetTPCsignal() const {return fTPCsignal;}
113 Float_t GetTPCchi2() const {return fTPCchi2;}
114 Int_t GetTPCclusters(Int_t *idx) const;
81e97e0d 115 Float_t GetTPCdensity(Int_t row0, Int_t row1) const;
6e5b1b04 116 Int_t GetTPCLabel() const {return fTPCLabel;}
51ad6848 117 Int_t GetKinkIndex(Int_t i) const { return fKinkIndexes[i];}
118 Int_t GetV0Index(Int_t i) const { return fV0Indexes[i];}
3a83c716 119 const TBits& GetTPCClusterMap() const {return fTPCClusterMap;}
a866ac60 120
c630aafd 121 void SetTRDpid(const Double_t *p);
7c97ee80 122 void SetTRDQuality(Float_t quality){fTRDQuality=quality;}
123 Float_t GetTRDQuality()const {return fTRDQuality;}
23d49657 124 void SetTRDBudget(Float_t budget){fTRDBudget=budget;}
125 Float_t GetTRDBudget()const {return fTRDBudget;}
c4d11b15 126 void SetTRDtrack(AliKalmanTrack * track){fTRDtrack=track;}
eab5961e 127 void SetTRDsignals(Float_t dedx, Int_t i) {fTRDsignals[i]=dedx;}
128 void SetTRDTimBin(Int_t timbin, Int_t i) {fTRDTimBin[i]=timbin;}
c630aafd 129 void GetTRDpid(Double_t *p) const;
79e94bf8 130 Float_t GetTRDsignal() const {return fTRDsignal;}
eab5961e 131 Float_t GetTRDsignals(Int_t i) const {return fTRDsignals[i];}
132 Int_t GetTRDTimBin(Int_t i) const {return fTRDTimBin[i];}
13da10da 133 Float_t GetTRDchi2() const {return fTRDchi2;}
bb2ceb1f 134 Int_t GetTRDclusters(UInt_t *idx) const;
51ad6848 135 Int_t GetTRDncls() const {return fTRDncls;}
79e94bf8 136 void SetTRDpid(Int_t iSpecies, Float_t p);
137 Float_t GetTRDpid(Int_t iSpecies) const;
6e5b1b04 138 Int_t GetTRDLabel() const {return fTRDLabel;}
35f4ab61 139 void GetTRDExternalParameters(Double_t &x, Double_t &alpha, Double_t p[5], Double_t cov[15]) const;//MI
c4d11b15 140 AliKalmanTrack * GetTRDtrack(){return fTRDtrack;}
79e94bf8 141
c630aafd 142 void SetTOFsignal(Double_t tof) {fTOFsignal=tof;}
143 Float_t GetTOFsignal() const {return fTOFsignal;}
13da10da 144 Float_t GetTOFchi2() const {return fTOFchi2;}
c630aafd 145 void SetTOFpid(const Double_t *p);
51ad6848 146 void SetTOFLabel(const Int_t *p);
c630aafd 147 void GetTOFpid(Double_t *p) const;
51ad6848 148 void GetTOFLabel(Int_t *p) const;
149 void GetTOFInfo(Float_t *info) const;
150 void SetTOFInfo(Float_t *info);
c630aafd 151 UInt_t GetTOFcluster() const {return fTOFindex;}
152 void SetTOFcluster(UInt_t index) {fTOFindex=index;}
4a78b8c5 153
154 void SetRICHsignal(Double_t beta) {fRICHsignal=beta;}
155 Float_t GetRICHsignal() const {return fRICHsignal;}
156 void SetRICHpid(const Double_t *p);
157 void GetRICHpid(Double_t *p) const;
1e5d06c3 158 void SetRICHchi2(Double_t chi2) {fRICHchi2=chi2;}
159 Float_t GetRICHchi2() const {return fRICHchi2;}
160 void SetRICHcluster(UInt_t index) {fRICHindex=index;}
161 UInt_t GetRICHcluster() const {return fRICHindex;}
162 void SetRICHnclusters(Int_t n) {fRICHncls=n;}
163 Int_t GetRICHnclusters() const {return fRICHncls;}
164 void SetRICHthetaPhi(Double_t theta, Double_t phi) {
165 fRICHtheta=theta; fRICHphi=phi;
166 }
167 void GetRICHthetaPhi(Double_t &theta, Double_t &phi) const {
168 theta=fRICHtheta; phi=fRICHphi;
169 }
170 void SetRICHdxdy(Double_t dx, Double_t dy) {
171 fRICHdx=dx; fRICHdy=dy;
172 }
173 void GetRICHdxdy(Double_t &dx, Double_t &dy) const {
f6956857 174 dx=fRICHdx; dy=fRICHdy;
1e5d06c3 175 }
4a78b8c5 176
177 void SetPHOSposition(const Double_t *pos) {
178 fPHOSpos[0] = pos[0]; fPHOSpos[1]=pos[1]; fPHOSpos[2]=pos[2];
179 }
180 void SetPHOSsignal(Double_t ene) {fPHOSsignal = ene; }
181 void SetPHOSpid(const Double_t *p);
182 void GetPHOSposition(Double_t *pos) const {
183 pos[0]=fPHOSpos[0]; pos[1]=fPHOSpos[1]; pos[2]=fPHOSpos[2];
184 }
185 Float_t GetPHOSsignal() const {return fPHOSsignal;}
186 void GetPHOSpid(Double_t *p) const;
187
704be597 188 void SetEMCALposition(const Double_t *pos) {
189 fEMCALpos[0] = pos[0]; fEMCALpos[1]=pos[1]; fEMCALpos[2]=pos[2];
190 }
191 void SetEMCALsignal(Double_t ene) {fEMCALsignal = ene; }
192 void SetEMCALpid(const Double_t *p);
193 void GetEMCALposition(Double_t *pos) const {
194 pos[0]=fEMCALpos[0]; pos[1]=fEMCALpos[1]; pos[2]=fEMCALpos[2];
195 }
196 Float_t GetEMCALsignal() const {return fEMCALsignal;}
197 void GetEMCALpid(Double_t *p) const;
198
3a83c716 199 Bool_t IsOn(Int_t mask) const {return (fFlags&mask)>0;}
704be597 200 Bool_t IsRICH() const {return fFlags&kRICHpid;}
201 Bool_t IsPHOS() const {return fFlags&kPHOSpid;}
202 Bool_t IsEMCAL() const {return fFlags&kEMCALpid;}
ac2f7574 203
98937d93 204 void SetTrackPointArray(AliTrackPointArray *points) { fPoints = points; }
205 AliTrackPointArray *GetTrackPointArray() const { return fPoints; }
206
ac2f7574 207 virtual void Print(Option_t * opt) const ;
208
ae982df3 209 enum {
8c6a71ab 210 kITSin=0x0001,kITSout=0x0002,kITSrefit=0x0004,kITSpid=0x0008,
211 kTPCin=0x0010,kTPCout=0x0020,kTPCrefit=0x0040,kTPCpid=0x0080,
212 kTRDin=0x0100,kTRDout=0x0200,kTRDrefit=0x0400,kTRDpid=0x0800,
213 kTOFin=0x1000,kTOFout=0x2000,kTOFrefit=0x4000,kTOFpid=0x8000,
c4d11b15 214 kPHOSpid=0x10000, kRICHpid=0x20000, kEMCALpid=0x40000,
215 kTRDbackup=0x80000,
4a78b8c5 216 kTRDStop=0x20000000,
8c6a71ab 217 kESDpid=0x40000000,
ae982df3 218 kTIME=0x80000000
219 };
ae982df3 220protected:
90e48c0c 221
81e97e0d 222 //AliESDtrack & operator=(const AliESDtrack & );
90e48c0c 223
ae982df3 224 ULong_t fFlags; // Reconstruction status flags
225 Int_t fLabel; // Track label
51ad6848 226 Int_t fID; // Unique ID of the track
399fb957 227 Float_t fTrackLength; // Track length
228 Float_t fD; // Impact parameter in XY-plane
229 Float_t fZ; // Impact parameter in Z
304864ab 230 Float_t fTrackTime[AliPID::kSPECIES]; // TOFs estimated by the tracking
231 Float_t fR[AliPID::kSPECIES]; // combined "detector response probability"
ae982df3 232
233 Int_t fStopVertex; // Index of stop vertex
234
235//Running track parameters
236 Double_t fRalpha; // track rotation angle
237 Double_t fRx; // X-coordinate of the track reference plane
238 Double_t fRp[5]; // external track parameters
239 Double_t fRc[15]; // external cov. matrix of the track parameters
240
67c3dcbe 241//Track parameters constrained to the primary vertex
3a83c716 242 Double_t fCalpha; // Track rotation angle
243 Double_t fCx; // x-coordinate of the track reference plane
244 Double_t fCp[5]; // external track parameters
245 Double_t fCc[15]; // external cov. matrix of the track parameters
67c3dcbe 246 Double_t fCchi2; //chi2 at the primary vertex
247
672b5f43 248//Track parameters at the inner wall of the TPC
3a83c716 249 Double_t fIalpha; // Track rotation angle
250 Double_t fIx; // x-coordinate of the track reference plane
251 Double_t fIp[5]; // external track parameters
252 Double_t fIc[15]; // external cov. matrix of the track parameters
23904d16 253
c4d11b15 254//Track parameters at the inner wall of the TRD
255 Double_t fTalpha; // Track rotation angle
256 Double_t fTx; // x-coordinate of the track reference plane
257 Double_t fTp[5]; // external track parameters
258 Double_t fTc[15]; // external cov. matrix of the track parameters
ae982df3 259
ae982df3 260 // ITS related track information
261 Float_t fITSchi2; // chi2 in the ITS
c4d11b15 262 Float_t fITSchi2MIP[12]; // chi2s in the ITS
ae982df3 263 Int_t fITSncls; // number of clusters assigned in the ITS
264 UInt_t fITSindex[6]; //! indices of the assigned ITS clusters
265 Float_t fITSsignal; // detector's PID signal
304864ab 266 Float_t fITSr[AliPID::kSPECIES]; // "detector response probabilities" (for the PID)
6e5b1b04 267 Int_t fITSLabel; // label according TPC
babd135a 268 Float_t fITSFakeRatio; // ration of fake tracks
3fd96ae3 269 AliKalmanTrack * fITStrack; //! OWNER: pointer to the ITS track -- currently for debug purpose
c4d11b15 270
ae982df3 271 // TPC related track information
272 Float_t fTPCchi2; // chi2 in the TPC
273 Int_t fTPCncls; // number of clusters assigned in the TPC
c84a5e9e 274 Int_t fTPCindex[180]; //! indices of the assigned TPC clusters
a866ac60 275 TBits fTPCClusterMap; // Map of clusters, one bit per padrow; 1 if has a cluster on given padrow
ae982df3 276 Float_t fTPCsignal; // detector's PID signal
304864ab 277 Float_t fTPCr[AliPID::kSPECIES]; // "detector response probabilities" (for the PID)
6e5b1b04 278 Int_t fTPCLabel; // label according TPC
51ad6848 279 Float_t fTPCPoints[4]; // TPC points -first, max. dens, last and max density
280 Int_t fKinkIndexes[3]; // array of indexes of posible kink candidates
281 Int_t fV0Indexes[3]; // array of indexes of posible kink candidates
23904d16 282
ae982df3 283 // TRD related track information
79e94bf8 284 Float_t fTRDchi2; // chi2 in the TRD
285 Int_t fTRDncls; // number of clusters assigned in the TRD
c4d11b15 286 Int_t fTRDncls0; // number of clusters assigned in the TRD before first material cross
287 UInt_t fTRDindex[130]; //! indices of the assigned TRD clusters
79e94bf8 288 Float_t fTRDsignal; // detector's PID signal
eab5961e 289 Float_t fTRDsignals[kNPlane]; // TRD signals from all six planes
290 Int_t fTRDTimBin[kNPlane]; // Time bin of Max cluster from all six planes
304864ab 291 Float_t fTRDr[AliPID::kSPECIES]; // "detector response probabilities" (for the PID)
6e5b1b04 292 Int_t fTRDLabel; // label according TRD
7c97ee80 293 Float_t fTRDQuality; //trd quality factor for TOF
23d49657 294 Float_t fTRDBudget; //trd material budget
3fd96ae3 295 AliKalmanTrack * fTRDtrack; //! OWNER: pointer to the TRD track -- currently for debug purpose
23904d16 296
ae982df3 297 // TOF related track information
c630aafd 298 Float_t fTOFchi2; // chi2 in the TOF
bb2ceb1f 299 UInt_t fTOFindex; // index of the assigned TOF cluster
c630aafd 300 Float_t fTOFsignal; // detector's PID signal
304864ab 301 Float_t fTOFr[AliPID::kSPECIES]; // "detector response probabilities" (for the PID)
51ad6848 302 Int_t fTOFLabel[3]; // TOF label
c84a5e9e 303 Float_t fTOFInfo[10]; //! TOF informations
23904d16 304
4a78b8c5 305 // PHOS related track information
51ad6848 306 Float_t fPHOSpos[3]; // position localised by PHOS in global coordinate system
4a78b8c5 307 Float_t fPHOSsignal; // energy measured by PHOS
304864ab 308 Float_t fPHOSr[AliPID::kSPECIESN]; // PID information from PHOS
704be597 309
310 // EMCAL related track information
311 Float_t fEMCALpos[3]; //position localised by EMCAL in global coordinate system
312 Float_t fEMCALsignal; // energy measured by EMCAL
304864ab 313 Float_t fEMCALr[AliPID::kSPECIESN]; // PID information from EMCAL
ae982df3 314
4a78b8c5 315 // HMPID related track information
1e5d06c3 316 Float_t fRICHchi2; // chi2 in the RICH
317 Int_t fRICHncls; // number of photon clusters
318 UInt_t fRICHindex; // index of the assigned MIP cluster
319 Float_t fRICHsignal; // RICH PID signal
304864ab 320 Float_t fRICHr[AliPID::kSPECIES];// "detector response probabilities" (for the PID)
1e5d06c3 321 Float_t fRICHtheta; // theta of the track extrapolated to the RICH
322 Float_t fRICHphi; // phi of the track extrapolated to the RICH
323 Float_t fRICHdx; // x of the track impact minus x of the MIP
324 Float_t fRICHdy; // y of the track impact minus y of the MIP
98937d93 325
326 AliTrackPointArray *fPoints; // Array which contains the track space points in the global frame
327
328 ClassDef(AliESDtrack,18) //ESDtrack
ae982df3 329};
330
331#endif
332