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 *****************************************************************************/
26 #include "AliExternalTrackParam.h"
32 class AliTrackPointArray;
34 const Int_t kNPlane = 6;
36 class AliESDtrack : public AliExternalTrackParam {
39 AliESDtrack(const AliESDtrack& track);
40 virtual ~AliESDtrack();
41 void MakeMiniESDtrack();
42 void SetID(Int_t id) { fID =id;}
43 Int_t GetID(){ return fID;}
44 void SetStatus(ULong_t flags) {fFlags|=flags;}
45 void ResetStatus(ULong_t flags) {fFlags&=~flags;}
46 Bool_t UpdateTrackParams(const AliKalmanTrack *t, ULong_t flags);
47 void SetIntegratedLength(Double_t l) {fTrackLength=l;}
48 void SetIntegratedTimes(const Double_t *times);
49 void SetESDpid(const Double_t *p);
50 void GetESDpid(Double_t *p) const;
52 ULong_t GetStatus() const {return fFlags;}
53 Int_t GetLabel() const {return fLabel;}
54 void SetLabel(Int_t label) {fLabel = label;}
56 void GetExternalParameters(Double_t &x, Double_t p[5]) const;
57 void GetExternalCovariance(Double_t cov[15]) const;
59 Double_t GetIntegratedLength() const {return fTrackLength;}
60 void GetIntegratedTimes(Double_t *times) const;
61 Double_t GetMass() const;
62 TVector3 P3() const {Double_t p[3]; GetPxPyPz(p); return TVector3(p[0],p[1],p[2]);} //running track momentum
63 TVector3 X3() const {Double_t x[3]; GetXYZ(x); return TVector3(x[0],x[1],x[2]);} //running track position
66 Bool_t GetConstrainedPxPyPz(Double_t *p) const {
67 if (!fCp) return kFALSE;
68 return fCp->GetPxPyPz(p);
70 Bool_t GetConstrainedXYZ(Double_t *r) const {
71 if (!fCp) return kFALSE;
72 return fCp->GetXYZ(r);
74 Bool_t GetConstrainedExternalParameters
75 (Double_t &alpha, Double_t &x, Double_t p[5]) const;
76 Bool_t GetConstrainedExternalCovariance(Double_t cov[15]) const;
77 Double_t GetConstrainedChi2() const {return fCchi2;}
80 Bool_t GetInnerPxPyPz(Double_t *p) const {
81 if (!fIp) return kFALSE;
82 return fIp->GetPxPyPz(p);
84 const AliExternalTrackParam * GetInnerParam() const { return fIp;}
85 Bool_t GetInnerXYZ(Double_t *r) const {
86 if (!fIp) return kFALSE;
87 return fIp->GetXYZ(r);
89 Bool_t GetInnerExternalParameters
90 (Double_t &alpha, Double_t &x, Double_t p[5]) const;
91 Bool_t GetInnerExternalCovariance(Double_t cov[15]) const;
93 const AliExternalTrackParam * GetOuterParam() const { return fOp;}
94 Bool_t GetOuterPxPyPz(Double_t *p) const {
95 if (!fOp) return kFALSE;
96 return fOp->GetPxPyPz(p);
98 Bool_t GetOuterXYZ(Double_t *r) const {
99 if (!fOp) return kFALSE;
100 return fOp->GetXYZ(r);
102 Bool_t GetOuterExternalParameters
103 (Double_t &alpha, Double_t &x, Double_t p[5]) const;
104 Bool_t GetOuterExternalCovariance(Double_t cov[15]) const;
107 Int_t GetNcls(Int_t idet) const;
108 Int_t GetClusters(Int_t idet, Int_t *idx) const;
110 void SetITSpid(const Double_t *p);
111 void SetITSChi2MIP(const Float_t *chi2mip);
112 void SetITStrack(AliKalmanTrack * track){fITStrack=track;}
113 void GetITSpid(Double_t *p) const;
114 Float_t GetITSsignal() const {return fITSsignal;}
115 Float_t GetITSchi2() const {return fITSchi2;}
116 Int_t GetITSclusters(Int_t *idx) const;
117 Int_t GetITSLabel() const {return fITSLabel;}
118 Float_t GetITSFakeRatio() const {return fITSFakeRatio;}
119 AliKalmanTrack * GetITStrack(){return fITStrack;}
121 void SetTPCpid(const Double_t *p);
122 void GetTPCpid(Double_t *p) const;
123 void SetTPCPoints(Float_t points[4]){for (Int_t i=0;i<4;i++) fTPCPoints[i]=points[i];}
124 void SetTPCPointsF(UChar_t findable){fTPCnclsF = findable;}
125 Float_t GetTPCPoints(Int_t i){return fTPCPoints[i];}
126 void SetKinkIndexes(Int_t points[3]) {for (Int_t i=0;i<3;i++) fKinkIndexes[i] = points[i];}
127 void SetV0Indexes(Int_t points[3]) {for (Int_t i=0;i<3;i++) fV0Indexes[i] = points[i];}
128 void SetTPCsignal(Float_t signal, Float_t sigma, UChar_t npoints){ fTPCsignal = signal; fTPCsignalS = sigma; fTPCsignalN = npoints;}
129 Float_t GetTPCsignal() const {return fTPCsignal;}
130 Float_t GetTPCchi2() const {return fTPCchi2;}
131 Int_t GetTPCclusters(Int_t *idx) const;
132 Float_t GetTPCdensity(Int_t row0, Int_t row1) const;
133 Int_t GetTPCLabel() const {return fTPCLabel;}
134 Int_t GetKinkIndex(Int_t i) const { return fKinkIndexes[i];}
135 Int_t GetV0Index(Int_t i) const { return fV0Indexes[i];}
136 const TBits& GetTPCClusterMap() const {return fTPCClusterMap;}
138 void SetTRDpid(const Double_t *p);
139 void SetTRDQuality(Float_t quality){fTRDQuality=quality;}
140 Float_t GetTRDQuality()const {return fTRDQuality;}
141 void SetTRDBudget(Float_t budget){fTRDBudget=budget;}
142 Float_t GetTRDBudget()const {return fTRDBudget;}
143 void SetTRDtrack(AliKalmanTrack * track){fTRDtrack=track;}
144 void SetTRDsignals(Float_t dedx, Int_t i) {fTRDsignals[i]=dedx;}
145 void SetTRDTimBin(Int_t timbin, Int_t i) {fTRDTimBin[i]=timbin;}
146 void GetTRDpid(Double_t *p) const;
147 Float_t GetTRDsignal() const {return fTRDsignal;}
148 Float_t GetTRDsignals(Int_t i) const {return fTRDsignals[i];}
149 Int_t GetTRDTimBin(Int_t i) const {return fTRDTimBin[i];}
150 Float_t GetTRDchi2() const {return fTRDchi2;}
151 Int_t GetTRDclusters(Int_t *idx) const;
152 Int_t GetTRDncls() const {return fTRDncls;}
153 void SetTRDpid(Int_t iSpecies, Float_t p);
154 Float_t GetTRDpid(Int_t iSpecies) const;
155 Int_t GetTRDLabel() const {return fTRDLabel;}
158 AliKalmanTrack * GetTRDtrack(){return fTRDtrack;}
160 void SetTOFsignal(Double_t tof) {fTOFsignal=tof;}
161 Float_t GetTOFsignal() const {return fTOFsignal;}
162 void SetTOFsignalToT(Double_t ToT) {fTOFsignalToT=ToT;}
163 Float_t GetTOFsignalToT() const {return fTOFsignalToT;}
164 Float_t GetTOFchi2() const {return fTOFchi2;}
165 void SetTOFpid(const Double_t *p);
166 void SetTOFLabel(const Int_t *p);
167 void GetTOFpid(Double_t *p) const;
168 void GetTOFLabel(Int_t *p) const;
169 void GetTOFInfo(Float_t *info) const;
170 void SetTOFInfo(Float_t *info);
171 Int_t GetTOFCalChannel() const {return fTOFCalChannel;}
172 Int_t GetTOFcluster() const {return fTOFindex;}
173 void SetTOFcluster(Int_t index) {fTOFindex=index;}
174 void SetTOFCalChannel(Int_t index) {fTOFCalChannel=index;}
176 void SetRICHsignal(Double_t beta) {fRICHsignal=beta;}
177 Float_t GetRICHsignal() const {return fRICHsignal;}
178 void SetRICHpid(const Double_t *p);
179 void GetRICHpid(Double_t *p) const;
180 void SetRICHchi2(Double_t chi2) {fRICHchi2=chi2;}
181 Float_t GetRICHchi2() const {return fRICHchi2;}
182 void SetRICHcluster(Int_t index) {fRICHindex=index;}
183 Int_t GetRICHcluster() const {return fRICHindex;}
184 void SetRICHnclusters(Int_t n) {fRICHncls=n;}
185 Int_t GetRICHnclusters() const {return fRICHncls;}
186 void SetRICHthetaPhi(Float_t theta, Float_t phi) {fRICHtheta=theta; fRICHphi=phi;}
187 void GetRICHthetaPhi(Float_t &theta, Float_t &phi)const {theta=fRICHtheta; phi=fRICHphi;}
188 void SetRICHdxdy (Float_t dx, Float_t dy) {fRICHdx=dx; fRICHdy=dy;}
189 void GetRICHdxdy (Float_t &dx, Float_t &dy)const {dx=fRICHdx; dy=fRICHdy;}
190 void SetRICHmipXY (Float_t x, Float_t y) {fRICHmipX=x; fRICHmipY=y;}
191 void GetRICHmipXY (Float_t &x, Float_t &y)const {x=fRICHmipX; y=fRICHmipY;}
193 Bool_t IsOn(Int_t mask) const {return (fFlags&mask)>0;}
194 Bool_t IsRICH() const {return fFlags&kRICHpid;}
195 Bool_t IsPHOS() const {return fFlags&kPHOSpid;}
197 void SetTrackPointArray(AliTrackPointArray *points) { fPoints = points; }
198 AliTrackPointArray *GetTrackPointArray() const { return fPoints; }
201 RelateToVertex(const AliESDVertex *vtx, Double_t b, Double_t maxd);
202 void GetImpactParameters(Float_t &xy,Float_t &z) const {xy=fD; z=fZ;}
203 void GetImpactParameters(Float_t p[2], Float_t cov[3]) const {
204 p[0]=fD; p[1]=fZ; cov[0]=fCdd; cov[1]=fCdz; cov[2]=fCzz;
206 virtual void Print(Option_t * opt) const ;
209 kITSin=0x0001,kITSout=0x0002,kITSrefit=0x0004,kITSpid=0x0008,
210 kTPCin=0x0010,kTPCout=0x0020,kTPCrefit=0x0040,kTPCpid=0x0080,
211 kTRDin=0x0100,kTRDout=0x0200,kTRDrefit=0x0400,kTRDpid=0x0800,
212 kTOFin=0x1000,kTOFout=0x2000,kTOFrefit=0x4000,kTOFpid=0x8000,
213 kPHOSpid=0x10000, kRICHpid=0x20000,
221 //AliESDtrack & operator=(const AliESDtrack & );
223 ULong_t fFlags; // Reconstruction status flags
224 Int_t fLabel; // Track label
225 Int_t fID; // Unique ID of the track
226 Float_t fTrackLength; // Track length
227 Float_t fD; // Impact parameter in XY plane
228 Float_t fZ; // Impact parameter in Z
229 Float_t fCdd,fCdz,fCzz; // Covariance matrix of the impact parameters
230 Float_t fTrackTime[AliPID::kSPECIES]; // TOFs estimated by the tracking
231 Float_t fR[AliPID::kSPECIES]; // combined "detector response probability"
233 Int_t fStopVertex; // Index of the stop vertex
235 //Track parameters constrained to the primary vertex
236 AliExternalTrackParam *fCp;
237 Double_t fCchi2; //chi2 at the primary vertex
239 //Track parameters at the inner wall of the TPC
240 AliExternalTrackParam *fIp;
242 //Track parameters at the inner wall of the TRD
243 AliExternalTrackParam *fOp;
245 // ITS related track information
246 Float_t fITSchi2; // chi2 in the ITS
247 Float_t fITSchi2MIP[12]; // chi2s in the ITS
248 Int_t fITSncls; // number of clusters assigned in the ITS
249 Int_t fITSindex[12]; //! indices of the assigned ITS clusters
250 Float_t fITSsignal; // detector's PID signal
251 Float_t fITSr[AliPID::kSPECIES]; // "detector response probabilities" (for the PID)
252 Int_t fITSLabel; // label according TPC
253 Float_t fITSFakeRatio; // ration of fake tracks
254 AliKalmanTrack * fITStrack; //! OWNER: pointer to the ITS track -- currently for debug purpose
256 // TPC related track information
257 Float_t fTPCchi2; // chi2 in the TPC
258 Int_t fTPCncls; // number of clusters assigned in the TPC
259 UShort_t fTPCnclsF; // number of findable clusters in the TPC
260 Int_t fTPCindex[180]; //! indices of the assigned TPC clusters
261 TBits fTPCClusterMap; // Map of clusters, one bit per padrow; 1 if has a cluster on given padrow
262 Float_t fTPCsignal; // detector's PID signal
263 UShort_t fTPCsignalN; // number of points used for dEdx
264 Float_t fTPCsignalS; // RMS of dEdx measurement
265 Float_t fTPCr[AliPID::kSPECIES]; // "detector response probabilities" (for the PID)
266 Int_t fTPCLabel; // label according TPC
267 Float_t fTPCPoints[4]; // TPC points -first, max. dens, last and max density
268 Int_t fKinkIndexes[3]; // array of indexes of posible kink candidates
269 Int_t fV0Indexes[3]; // array of indexes of posible kink candidates
271 // TRD related track information
272 Float_t fTRDchi2; // chi2 in the TRD
273 Int_t fTRDncls; // number of clusters assigned in the TRD
274 Int_t fTRDncls0; // number of clusters assigned in the TRD before first material cross
275 Int_t fTRDindex[180]; //! indices of the assigned TRD clusters
276 Float_t fTRDsignal; // detector's PID signal
277 Float_t fTRDsignals[kNPlane]; // TRD signals from all six planes
278 Int_t fTRDTimBin[kNPlane]; // Time bin of Max cluster from all six planes
279 Float_t fTRDr[AliPID::kSPECIES]; // "detector response probabilities" (for the PID)
280 Int_t fTRDLabel; // label according TRD
281 Float_t fTRDQuality; //trd quality factor for TOF
282 Float_t fTRDBudget; //trd material budget
283 AliKalmanTrack * fTRDtrack; //! OWNER: pointer to the TRD track -- currently for debug purpose
285 // TOF related track information
286 Float_t fTOFchi2; // chi2 in the TOF
287 Int_t fTOFindex; // index of the assigned TOF cluster
288 Int_t fTOFCalChannel; // Channel Index of the TOF Signal
289 Float_t fTOFsignal; // detector's PID signal
290 Float_t fTOFsignalToT; // detector's ToT signal
291 Float_t fTOFr[AliPID::kSPECIES]; // "detector response probabilities" (for the PID)
292 Int_t fTOFLabel[3]; // TOF label
293 Float_t fTOFInfo[10]; //! TOF informations
295 // HMPID related track information
296 Float_t fRICHchi2; // chi2 in the RICH
297 Int_t fRICHncls; // number of photon clusters
298 Int_t fRICHindex; // index of the assigned MIP cluster
299 Float_t fRICHsignal; // RICH PID signal
300 Float_t fRICHr[AliPID::kSPECIES];// "detector response probabilities" (for the PID)
301 Float_t fRICHtheta; // theta of the track extrapolated to the RICH
302 Float_t fRICHphi; // phi of the track extrapolated to the RICH
303 Float_t fRICHdx; // x of the track impact minus x of the MIP
304 Float_t fRICHdy; // y of the track impact minus y of the MIP
305 Float_t fRICHmipX; // x of the MIP in LORS
306 Float_t fRICHmipY; // y of the MIP in LORS
308 AliTrackPointArray *fPoints; // Array which contains the track space points in the global frame
310 ClassDef(AliESDtrack,26) //ESDtrack