3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
8 //-------------------------------------------------------------------------
10 // This is the class to deal with during the physics analysis of data
12 // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
13 //-------------------------------------------------------------------------
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 *****************************************************************************/
32 const Int_t kNPlane = 6;
34 class AliESDtrack : public TObject {
37 AliESDtrack(const AliESDtrack& track);
38 virtual ~AliESDtrack();
39 void SetID(Int_t id) { fID =id;}
40 Int_t GetID(){ return fID;}
41 void SetStatus(ULong_t flags) {fFlags|=flags;}
42 void ResetStatus(ULong_t flags) {fFlags&=~flags;}
43 Bool_t UpdateTrackParams(const AliKalmanTrack *t, ULong_t flags);
44 void SetImpactParameters(Float_t xy,Float_t z) {fD=xy; fZ=z;}
45 void SetIntegratedLength(Double_t l) {fTrackLength=l;}
46 void SetIntegratedTimes(const Double_t *times);
47 void SetESDpid(const Double_t *p);
48 void GetESDpid(Double_t *p) const;
50 ULong_t GetStatus() const {return fFlags;}
51 Int_t GetLabel() const {return fLabel;}
52 Double_t GetAlpha() const {return fRalpha;}
53 void GetExternalParameters(Double_t &x, Double_t p[5]) const;
54 void GetExternalCovariance(Double_t cov[15]) const;
56 Bool_t GetExternalParametersAt(Double_t x, Double_t p[5]) const;
57 Bool_t GetPxPyPzAt(Double_t x, Double_t p[3]) const;
58 Bool_t GetXYZAt(Double_t x, Double_t r[3]) const;
60 void GetImpactParameters(Float_t &xy,Float_t &z) const {xy=fD; z=fZ;}
61 Double_t GetIntegratedLength() const {return fTrackLength;}
62 void GetIntegratedTimes(Double_t *times) const;
63 Double_t GetMass() const;
64 Double_t GetP() const;
65 Bool_t GetPxPyPz(Double_t *p) const;
66 TVector3 P3() const {Double_t p[3]; GetPxPyPz(p); return TVector3(p[0],p[1],p[2]);} //running track momentum
67 Bool_t GetXYZ(Double_t *r) const;
68 TVector3 X3() const {Double_t x[3]; GetXYZ(x); return TVector3(x[0],x[1],x[2]);} //running track position
69 void GetCovariance(Double_t cov[21]) const;
70 Int_t GetSign() const {return (fRp[4]>0) ? 1 : -1;}
72 void SetConstrainedTrackParams(const AliKalmanTrack *t, Double_t chi2);
74 Double_t GetConstrainedAlpha() const {return fCalpha;}
75 Double_t GetConstrainedChi2() const {return fCchi2;}
76 void GetConstrainedExternalParameters(Double_t &x, Double_t p[5]) const;
77 void GetConstrainedExternalCovariance(Double_t cov[15]) const;
79 Bool_t GetConstrainedPxPyPz(Double_t *p) const;
80 Bool_t GetConstrainedXYZ(Double_t *r) const;
82 Bool_t GetInnerPxPyPz(Double_t *p) const;
83 Bool_t GetInnerXYZ(Double_t *r) const;
84 void GetInnerExternalParameters(Double_t &x, Double_t p[5]) const;//skowron
85 void GetInnerExternalCovariance(Double_t cov[15]) const;//skowron
86 Double_t GetInnerAlpha() const {return fIalpha;}
88 void SetITSpid(const Double_t *p);
89 void SetITSChi2MIP(const Float_t *chi2mip);
90 void SetITStrack(AliKalmanTrack * track){fITStrack=track;}
91 void GetITSpid(Double_t *p) const;
92 Float_t GetITSsignal() const {return fITSsignal;}
93 Float_t GetITSchi2() const {return fITSchi2;}
94 Int_t GetITSclusters(UInt_t *idx) const;
95 Int_t GetITSLabel() const {return fITSLabel;}
96 Float_t GetITSFakeRatio() const {return fITSFakeRatio;}
97 AliKalmanTrack * GetITStrack(){return fITStrack;}
99 void SetTPCpid(const Double_t *p);
100 void GetTPCpid(Double_t *p) const;
101 void SetTPCPoints(Float_t points[4]){for (Int_t i=0;i<4;i++) fTPCPoints[i]=points[i];}
102 void SetKinkIndexes(Int_t points[3]) {for (Int_t i=0;i<3;i++) fKinkIndexes[i] = points[i];}
103 void SetV0Indexes(Int_t points[3]) {for (Int_t i=0;i<3;i++) fV0Indexes[i] = points[i];}
104 Float_t GetTPCsignal() const {return fTPCsignal;}
105 Float_t GetTPCchi2() const {return fTPCchi2;}
106 Int_t GetTPCclusters(Int_t *idx) const;
107 Int_t GetTPCLabel() const {return fTPCLabel;}
108 Int_t GetKinkIndex(Int_t i) const { return fKinkIndexes[i];}
109 Int_t GetV0Index(Int_t i) const { return fV0Indexes[i];}
110 const TBits& GetTPCClusterMap() const {return fTPCClusterMap;}
112 void SetTRDpid(const Double_t *p);
113 void SetTRDtrack(AliKalmanTrack * track){fTRDtrack=track;}
114 void SetTRDsignals(Float_t dedx, Int_t i) {fTRDsignals[i]=dedx;}
115 void SetTRDTimBin(Int_t timbin, Int_t i) {fTRDTimBin[i]=timbin;}
116 void GetTRDpid(Double_t *p) const;
117 Float_t GetTRDsignal() const {return fTRDsignal;}
118 Float_t GetTRDsignals(Int_t i) const {return fTRDsignals[i];}
119 Int_t GetTRDTimBin(Int_t i) const {return fTRDTimBin[i];}
120 Float_t GetTRDchi2() const {return fTRDchi2;}
121 Int_t GetTRDclusters(UInt_t *idx) const;
122 Int_t GetTRDncls() const {return fTRDncls;}
123 void SetTRDpid(Int_t iSpecies, Float_t p);
124 Float_t GetTRDpid(Int_t iSpecies) const;
125 Int_t GetTRDLabel() const {return fTRDLabel;}
126 void GetTRDExternalParameters(Double_t &x, Double_t &alpha, Double_t p[5], Double_t cov[15]) const;//MI
127 AliKalmanTrack * GetTRDtrack(){return fTRDtrack;}
129 void SetTOFsignal(Double_t tof) {fTOFsignal=tof;}
130 Float_t GetTOFsignal() const {return fTOFsignal;}
131 Float_t GetTOFchi2() const {return fTOFchi2;}
132 void SetTOFpid(const Double_t *p);
133 void SetTOFLabel(const Int_t *p);
134 void GetTOFpid(Double_t *p) const;
135 void GetTOFLabel(Int_t *p) const;
136 void GetTOFInfo(Float_t *info) const;
137 void SetTOFInfo(Float_t *info);
138 UInt_t GetTOFcluster() const {return fTOFindex;}
139 void SetTOFcluster(UInt_t index) {fTOFindex=index;}
141 void SetRICHsignal(Double_t beta) {fRICHsignal=beta;}
142 Float_t GetRICHsignal() const {return fRICHsignal;}
143 void SetRICHpid(const Double_t *p);
144 void GetRICHpid(Double_t *p) const;
145 void SetRICHchi2(Double_t chi2) {fRICHchi2=chi2;}
146 Float_t GetRICHchi2() const {return fRICHchi2;}
147 void SetRICHcluster(UInt_t index) {fRICHindex=index;}
148 UInt_t GetRICHcluster() const {return fRICHindex;}
149 void SetRICHnclusters(Int_t n) {fRICHncls=n;}
150 Int_t GetRICHnclusters() const {return fRICHncls;}
151 void SetRICHthetaPhi(Double_t theta, Double_t phi) {
152 fRICHtheta=theta; fRICHphi=phi;
154 void GetRICHthetaPhi(Double_t &theta, Double_t &phi) const {
155 theta=fRICHtheta; phi=fRICHphi;
157 void SetRICHdxdy(Double_t dx, Double_t dy) {
158 fRICHdx=dx; fRICHdy=dy;
160 void GetRICHdxdy(Double_t &dx, Double_t &dy) const {
161 dx=fRICHdx; dy=fRICHdy;
164 void SetPHOSposition(const Double_t *pos) {
165 fPHOSpos[0] = pos[0]; fPHOSpos[1]=pos[1]; fPHOSpos[2]=pos[2];
167 void SetPHOSsignal(Double_t ene) {fPHOSsignal = ene; }
168 void SetPHOSpid(const Double_t *p);
169 void GetPHOSposition(Double_t *pos) const {
170 pos[0]=fPHOSpos[0]; pos[1]=fPHOSpos[1]; pos[2]=fPHOSpos[2];
172 Float_t GetPHOSsignal() const {return fPHOSsignal;}
173 void GetPHOSpid(Double_t *p) const;
175 void SetEMCALposition(const Double_t *pos) {
176 fEMCALpos[0] = pos[0]; fEMCALpos[1]=pos[1]; fEMCALpos[2]=pos[2];
178 void SetEMCALsignal(Double_t ene) {fEMCALsignal = ene; }
179 void SetEMCALpid(const Double_t *p);
180 void GetEMCALposition(Double_t *pos) const {
181 pos[0]=fEMCALpos[0]; pos[1]=fEMCALpos[1]; pos[2]=fEMCALpos[2];
183 Float_t GetEMCALsignal() const {return fEMCALsignal;}
184 void GetEMCALpid(Double_t *p) const;
186 Bool_t IsOn(Int_t mask) const {return (fFlags&mask)>0;}
187 Bool_t IsRICH() const {return fFlags&kRICHpid;}
188 Bool_t IsPHOS() const {return fFlags&kPHOSpid;}
189 Bool_t IsEMCAL() const {return fFlags&kEMCALpid;}
191 virtual void Print(Option_t * opt) const ;
194 kITSin=0x0001,kITSout=0x0002,kITSrefit=0x0004,kITSpid=0x0008,
195 kTPCin=0x0010,kTPCout=0x0020,kTPCrefit=0x0040,kTPCpid=0x0080,
196 kTRDin=0x0100,kTRDout=0x0200,kTRDrefit=0x0400,kTRDpid=0x0800,
197 kTOFin=0x1000,kTOFout=0x2000,kTOFrefit=0x4000,kTOFpid=0x8000,
198 kPHOSpid=0x10000, kRICHpid=0x20000, kEMCALpid=0x40000,
205 ULong_t fFlags; // Reconstruction status flags
206 Int_t fLabel; // Track label
207 Int_t fID; // Unique ID of the track
208 Float_t fTrackLength; // Track length
209 Float_t fD; // Impact parameter in XY-plane
210 Float_t fZ; // Impact parameter in Z
211 Float_t fTrackTime[AliPID::kSPECIES]; // TOFs estimated by the tracking
212 Float_t fR[AliPID::kSPECIES]; // combined "detector response probability"
214 Int_t fStopVertex; // Index of stop vertex
216 //Running track parameters
217 Double_t fRalpha; // track rotation angle
218 Double_t fRx; // X-coordinate of the track reference plane
219 Double_t fRp[5]; // external track parameters
220 Double_t fRc[15]; // external cov. matrix of the track parameters
222 //Track parameters constrained to the primary vertex
223 Double_t fCalpha; // Track rotation angle
224 Double_t fCx; // x-coordinate of the track reference plane
225 Double_t fCp[5]; // external track parameters
226 Double_t fCc[15]; // external cov. matrix of the track parameters
227 Double_t fCchi2; //chi2 at the primary vertex
229 //Track parameters at the inner wall of the TPC
230 Double_t fIalpha; // Track rotation angle
231 Double_t fIx; // x-coordinate of the track reference plane
232 Double_t fIp[5]; // external track parameters
233 Double_t fIc[15]; // external cov. matrix of the track parameters
235 //Track parameters at the inner wall of the TRD
236 Double_t fTalpha; // Track rotation angle
237 Double_t fTx; // x-coordinate of the track reference plane
238 Double_t fTp[5]; // external track parameters
239 Double_t fTc[15]; // external cov. matrix of the track parameters
241 // ITS related track information
242 Float_t fITSchi2; // chi2 in the ITS
243 Float_t fITSchi2MIP[12]; // chi2s in the ITS
244 Int_t fITSncls; // number of clusters assigned in the ITS
245 UInt_t fITSindex[6]; //! indices of the assigned ITS clusters
246 Float_t fITSsignal; // detector's PID signal
247 Float_t fITSr[AliPID::kSPECIES]; // "detector response probabilities" (for the PID)
248 Int_t fITSLabel; // label according TPC
249 Float_t fITSFakeRatio; // ration of fake tracks
250 AliKalmanTrack * fITStrack; //! OWNER: pointer to the ITS track -- currently for debug purpose
252 // TPC related track information
253 Float_t fTPCchi2; // chi2 in the TPC
254 Int_t fTPCncls; // number of clusters assigned in the TPC
255 Int_t fTPCindex[180]; //! indices of the assigned TPC clusters
256 TBits fTPCClusterMap; // Map of clusters, one bit per padrow; 1 if has a cluster on given padrow
257 Float_t fTPCsignal; // detector's PID signal
258 Float_t fTPCr[AliPID::kSPECIES]; // "detector response probabilities" (for the PID)
259 Int_t fTPCLabel; // label according TPC
260 Float_t fTPCPoints[4]; // TPC points -first, max. dens, last and max density
261 Int_t fKinkIndexes[3]; // array of indexes of posible kink candidates
262 Int_t fV0Indexes[3]; // array of indexes of posible kink candidates
264 // TRD related track information
265 Float_t fTRDchi2; // chi2 in the TRD
266 Int_t fTRDncls; // number of clusters assigned in the TRD
267 Int_t fTRDncls0; // number of clusters assigned in the TRD before first material cross
268 UInt_t fTRDindex[130]; //! indices of the assigned TRD clusters
269 Float_t fTRDsignal; // detector's PID signal
270 Float_t fTRDsignals[kNPlane]; // TRD signals from all six planes
271 Int_t fTRDTimBin[kNPlane]; // Time bin of Max cluster from all six planes
272 Float_t fTRDr[AliPID::kSPECIES]; // "detector response probabilities" (for the PID)
273 Int_t fTRDLabel; // label according TRD
274 AliKalmanTrack * fTRDtrack; //! OWNER: pointer to the TRD track -- currently for debug purpose
276 // TOF related track information
277 Float_t fTOFchi2; // chi2 in the TOF
278 UInt_t fTOFindex; // index of the assigned TOF cluster
279 Float_t fTOFsignal; // detector's PID signal
280 Float_t fTOFr[AliPID::kSPECIES]; // "detector response probabilities" (for the PID)
281 Int_t fTOFLabel[3]; // TOF label
282 Float_t fTOFInfo[10]; //! TOF informations
284 // PHOS related track information
285 Float_t fPHOSpos[3]; // position localised by PHOS in global coordinate system
286 Float_t fPHOSsignal; // energy measured by PHOS
287 Float_t fPHOSr[AliPID::kSPECIESN]; // PID information from PHOS
289 // EMCAL related track information
290 Float_t fEMCALpos[3]; //position localised by EMCAL in global coordinate system
291 Float_t fEMCALsignal; // energy measured by EMCAL
292 Float_t fEMCALr[AliPID::kSPECIESN]; // PID information from EMCAL
294 // HMPID related track information
295 Float_t fRICHchi2; // chi2 in the RICH
296 Int_t fRICHncls; // number of photon clusters
297 UInt_t fRICHindex; // index of the assigned MIP cluster
298 Float_t fRICHsignal; // RICH PID signal
299 Float_t fRICHr[AliPID::kSPECIES];// "detector response probabilities" (for the PID)
300 Float_t fRICHtheta; // theta of the track extrapolated to the RICH
301 Float_t fRICHphi; // phi of the track extrapolated to the RICH
302 Float_t fRICHdx; // x of the track impact minus x of the MIP
303 Float_t fRICHdy; // y of the track impact minus y of the MIP
305 ClassDef(AliESDtrack,12) //ESDtrack