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"
28 #include "AliESDfriendTrack.h"
32 class AliTrackPointArray;
34 class AliESDtrack : public AliExternalTrackParam {
37 AliESDtrack(const AliESDtrack& track);
38 virtual ~AliESDtrack();
39 const AliESDfriendTrack *GetFriendTrack() const {return fFriendTrack;}
40 void MakeMiniESDtrack();
41 void SetID(Int_t id) { fID =id;}
42 Int_t GetID() const { return fID;}
43 void SetStatus(ULong_t flags) {fFlags|=flags;}
44 void ResetStatus(ULong_t flags) {fFlags&=~flags;}
45 Bool_t UpdateTrackParams(const AliKalmanTrack *t, ULong_t flags);
46 void SetIntegratedLength(Double_t l) {fTrackLength=l;}
47 void SetIntegratedTimes(const Double_t *times);
48 void SetESDpid(const Double_t *p);
49 void GetESDpid(Double_t *p) const;
51 Bool_t IsOn(Int_t mask) const {return (fFlags&mask)>0;}
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;
63 Bool_t GetConstrainedPxPyPz(Double_t *p) const {
64 if (!fCp) return kFALSE;
65 return fCp->GetPxPyPz(p);
67 Bool_t GetConstrainedXYZ(Double_t *r) const {
68 if (!fCp) return kFALSE;
69 return fCp->GetXYZ(r);
71 Bool_t GetConstrainedExternalParameters
72 (Double_t &alpha, Double_t &x, Double_t p[5]) const;
73 Bool_t GetConstrainedExternalCovariance(Double_t cov[15]) const;
74 Double_t GetConstrainedChi2() const {return fCchi2;}
77 Bool_t GetInnerPxPyPz(Double_t *p) const {
78 if (!fIp) return kFALSE;
79 return fIp->GetPxPyPz(p);
81 const AliExternalTrackParam * GetInnerParam() const { return fIp;}
82 Bool_t GetInnerXYZ(Double_t *r) const {
83 if (!fIp) return kFALSE;
84 return fIp->GetXYZ(r);
86 Bool_t GetInnerExternalParameters
87 (Double_t &alpha, Double_t &x, Double_t p[5]) const;
88 Bool_t GetInnerExternalCovariance(Double_t cov[15]) const;
90 const AliExternalTrackParam * GetOuterParam() const { return fOp;}
91 Bool_t GetOuterPxPyPz(Double_t *p) const {
92 if (!fOp) return kFALSE;
93 return fOp->GetPxPyPz(p);
95 Bool_t GetOuterXYZ(Double_t *r) const {
96 if (!fOp) return kFALSE;
97 return fOp->GetXYZ(r);
99 Bool_t GetOuterExternalParameters
100 (Double_t &alpha, Double_t &x, Double_t p[5]) const;
101 Bool_t GetOuterExternalCovariance(Double_t cov[15]) const;
104 Int_t GetNcls(Int_t idet) const;
105 Int_t GetClusters(Int_t idet, Int_t *idx) const;
107 void SetITSpid(const Double_t *p);
108 void GetITSpid(Double_t *p) const;
109 Float_t GetITSsignal() const {return fITSsignal;}
110 Float_t GetITSchi2() const {return fITSchi2;}
111 Int_t GetITSclusters(Int_t *idx) const;
112 Int_t GetITSLabel() const {return fITSLabel;}
113 Float_t GetITSFakeRatio() const {return fITSFakeRatio;}
115 void SetITStrack(AliKalmanTrack * track){
116 fFriendTrack->SetITStrack(track);
118 AliKalmanTrack *GetITStrack(){
119 return fFriendTrack->GetITStrack();
122 void SetTPCpid(const Double_t *p);
123 void GetTPCpid(Double_t *p) const;
124 void SetTPCPoints(Float_t points[4]){
125 for (Int_t i=0;i<4;i++) fTPCPoints[i]=points[i];
127 void SetTPCPointsF(UChar_t findable){fTPCnclsF = findable;}
128 Float_t GetTPCPoints(Int_t i) const {return fTPCPoints[i];}
129 void SetKinkIndexes(Int_t points[3]) {
130 for (Int_t i=0;i<3;i++) fKinkIndexes[i] = points[i];
132 void SetV0Indexes(Int_t points[3]) {
133 for (Int_t i=0;i<3;i++) fV0Indexes[i] = points[i];
135 void SetTPCsignal(Float_t signal, Float_t sigma, UChar_t npoints){
136 fTPCsignal = signal; fTPCsignalS = sigma; fTPCsignalN = npoints;
138 Float_t GetTPCsignal() const {return fTPCsignal;}
139 Float_t GetTPCchi2() const {return fTPCchi2;}
140 Int_t GetTPCclusters(Int_t *idx) const;
141 Float_t GetTPCdensity(Int_t row0, Int_t row1) const;
142 Int_t GetTPCLabel() const {return fTPCLabel;}
143 Int_t GetKinkIndex(Int_t i) const { return fKinkIndexes[i];}
144 Int_t GetV0Index(Int_t i) const { return fV0Indexes[i];}
145 const TBits& GetTPCClusterMap() const {return fTPCClusterMap;}
147 void SetTRDpid(const Double_t *p);
148 void SetTRDQuality(Float_t quality){fTRDQuality=quality;}
149 Float_t GetTRDQuality()const {return fTRDQuality;}
150 void SetTRDBudget(Float_t budget){fTRDBudget=budget;}
151 Float_t GetTRDBudget()const {return fTRDBudget;}
152 void SetTRDsignals(Float_t dedx, Int_t i) {fTRDsignals[i]=dedx;}
153 void SetTRDTimBin(Int_t timbin, Int_t i) {fTRDTimBin[i]=timbin;}
154 void GetTRDpid(Double_t *p) const;
155 Float_t GetTRDsignal() const {return fTRDsignal;}
156 Float_t GetTRDsignals(Int_t i) const {return fTRDsignals[i];}
157 Int_t GetTRDTimBin(Int_t i) const {return fTRDTimBin[i];}
158 Float_t GetTRDchi2() const {return fTRDchi2;}
159 Int_t GetTRDclusters(Int_t *idx) const;
160 Int_t GetTRDncls() const {return fTRDncls;}
161 void SetTRDpid(Int_t iSpecies, Float_t p);
162 Float_t GetTRDpid(Int_t iSpecies) const;
163 Int_t GetTRDLabel() const {return fTRDLabel;}
165 void SetTRDtrack(AliKalmanTrack * track){
166 fFriendTrack->SetTRDtrack(track);
168 AliKalmanTrack *GetTRDtrack(){
169 return fFriendTrack->GetTRDtrack();
172 void SetTOFsignal(Double_t tof) {fTOFsignal=tof;}
173 Float_t GetTOFsignal() const {return fTOFsignal;}
174 void SetTOFsignalToT(Double_t ToT) {fTOFsignalToT=ToT;}
175 Float_t GetTOFsignalToT() const {return fTOFsignalToT;}
176 Float_t GetTOFchi2() const {return fTOFchi2;}
177 void SetTOFpid(const Double_t *p);
178 void SetTOFLabel(const Int_t *p);
179 void GetTOFpid(Double_t *p) const;
180 void GetTOFLabel(Int_t *p) const;
181 void GetTOFInfo(Float_t *info) const;
182 void SetTOFInfo(Float_t *info);
183 Int_t GetTOFCalChannel() const {return fTOFCalChannel;}
184 Int_t GetTOFcluster() const {return fTOFindex;}
185 void SetTOFcluster(Int_t index) {fTOFindex=index;}
186 void SetTOFCalChannel(Int_t index) {fTOFCalChannel=index;}
188 void SetRICHsignal(Double_t beta) {fRICHsignal=beta;}
189 Float_t GetRICHsignal() const {return fRICHsignal;}
190 void SetRICHpid(const Double_t *p);
191 void GetRICHpid(Double_t *p) const;
192 void SetRICHchi2(Double_t chi2) {fRICHchi2=chi2;}
193 Float_t GetRICHchi2() const {return fRICHchi2;}
194 void SetRICHcluster(Int_t index) {fRICHindex=index;}
195 Int_t GetRICHcluster() const {return fRICHindex;}
196 void SetRICHnclusters(Int_t n) {fRICHncls=n;}
197 Int_t GetRICHnclusters() const {return fRICHncls;}
198 void SetRICHthetaPhi(Float_t theta, Float_t phi) {
199 fRICHtheta=theta; fRICHphi=phi;
201 void GetRICHthetaPhi(Float_t &theta, Float_t &phi) const {
202 theta=fRICHtheta; phi=fRICHphi;
204 void SetRICHdxdy(Float_t dx, Float_t dy) {
205 fRICHdx=dx; fRICHdy=dy;
207 void GetRICHdxdy(Float_t &dx, Float_t &dy) const {
208 dx=fRICHdx; dy=fRICHdy;
210 void SetRICHmipXY(Float_t x, Float_t y) {
211 fRICHmipX=x; fRICHmipY=y;
213 void GetRICHmipXY(Float_t &x, Float_t &y) const {
214 x=fRICHmipX; y=fRICHmipY;
216 Bool_t IsRICH() const {return fFlags&kRICHpid;}
218 void SetTrackPointArray(AliTrackPointArray *points);
219 const AliTrackPointArray *GetTrackPointArray() const;
221 Bool_t RelateToVertex(const AliESDVertex *vtx, Double_t b, Double_t maxd);
222 void GetImpactParameters(Float_t &xy,Float_t &z) const {xy=fD; z=fZ;}
223 void GetImpactParameters(Float_t p[2], Float_t cov[3]) const {
224 p[0]=fD; p[1]=fZ; cov[0]=fCdd; cov[1]=fCdz; cov[2]=fCzz;
226 virtual void Print(Option_t * opt) const ;
229 kITSin=0x0001,kITSout=0x0002,kITSrefit=0x0004,kITSpid=0x0008,
230 kTPCin=0x0010,kTPCout=0x0020,kTPCrefit=0x0040,kTPCpid=0x0080,
231 kTRDin=0x0100,kTRDout=0x0200,kTRDrefit=0x0400,kTRDpid=0x0800,
232 kTOFin=0x1000,kTOFout=0x2000,kTOFrefit=0x4000,kTOFpid=0x8000,
245 ULong_t fFlags; // Reconstruction status flags
246 Int_t fLabel; // Track label
247 Int_t fID; // Unique ID of the track
248 Float_t fTrackLength; // Track length
249 Float_t fD; // Impact parameter in XY plane
250 Float_t fZ; // Impact parameter in Z
251 Float_t fCdd,fCdz,fCzz; // Covariance matrix of the impact parameters
252 Float_t fTrackTime[AliPID::kSPECIES]; // TOFs estimated by the tracking
253 Float_t fR[AliPID::kSPECIES]; // combined "detector response probability"
255 Int_t fStopVertex; // Index of the stop vertex
257 AliExternalTrackParam *fCp; // Track parameters constrained to the primary vertex
258 Double_t fCchi2; // chi2 at the primary vertex
261 AliExternalTrackParam *fIp; // Track parameters at the inner wall of the TPC
264 AliExternalTrackParam *fOp; // Track parameters at the inner wall of the TRD
266 // ITS related track information
267 Float_t fITSchi2; // chi2 in the ITS
268 Int_t fITSncls; // number of clusters assigned in the ITS
269 Float_t fITSsignal; // detector's PID signal
270 Float_t fITSr[AliPID::kSPECIES]; // "detector response probabilities" (for the PID)
271 Int_t fITSLabel; // label according TPC
272 Float_t fITSFakeRatio; // ration of fake tracks
275 // TPC related track information
276 Float_t fTPCchi2; // chi2 in the TPC
277 Int_t fTPCncls; // number of clusters assigned in the TPC
278 UShort_t fTPCnclsF; // number of findable clusters in the TPC
279 TBits fTPCClusterMap; // Map of clusters, one bit per padrow; 1 if has a cluster on given padrow
280 Float_t fTPCsignal; // detector's PID signal
281 UShort_t fTPCsignalN; // number of points used for dEdx
282 Float_t fTPCsignalS; // RMS of dEdx measurement
283 Float_t fTPCr[AliPID::kSPECIES]; // "detector response probabilities" (for the PID)
284 Int_t fTPCLabel; // label according TPC
285 Float_t fTPCPoints[4]; // TPC points -first, max. dens, last and max density
286 Int_t fKinkIndexes[3];// array of indexes of posible kink candidates
287 Int_t fV0Indexes[3]; // array of indexes of posible kink candidates
289 // TRD related track information
290 Float_t fTRDchi2; // chi2 in the TRD
291 Int_t fTRDncls; // number of clusters assigned in the TRD
292 Int_t fTRDncls0; // number of clusters assigned in the TRD before first material cross
293 Float_t fTRDsignal; // detector's PID signal
294 Float_t fTRDsignals[kNPlane]; // TRD signals from all six planes
295 Int_t fTRDTimBin[kNPlane]; // Time bin of Max cluster from all six planes
296 Float_t fTRDr[AliPID::kSPECIES]; // "detector response probabilities" (for the PID)
297 Int_t fTRDLabel; // label according TRD
298 Float_t fTRDQuality; // trd quality factor for TOF
299 Float_t fTRDBudget; // trd material budget
302 // TOF related track information
303 Float_t fTOFchi2; // chi2 in the TOF
304 Int_t fTOFindex; // index of the assigned TOF cluster
305 Int_t fTOFCalChannel; // Channel Index of the TOF Signal
306 Float_t fTOFsignal; // detector's PID signal
307 Float_t fTOFsignalToT; // detector's ToT signal
308 Float_t fTOFr[AliPID::kSPECIES]; // "detector response probabilities" (for the PID)
309 Int_t fTOFLabel[3]; // TOF label
310 Float_t fTOFInfo[10]; //! TOF informations
312 // HMPID related track information
313 Float_t fRICHchi2; // chi2 in the RICH
314 Int_t fRICHncls; // number of photon clusters
315 Int_t fRICHindex; // index of the assigned MIP cluster
316 Float_t fRICHsignal; // RICH PID signal
317 Float_t fRICHr[AliPID::kSPECIES];// "detector response probabilities" (for the PID)
318 Float_t fRICHtheta; // theta of the track extrapolated to the RICH
319 Float_t fRICHphi; // phi of the track extrapolated to the RICH
320 Float_t fRICHdx; // x of the track impact minus x of the MIP
321 Float_t fRICHdy; // y of the track impact minus y of the MIP
322 Float_t fRICHmipX; // x of the MIP in LORS
323 Float_t fRICHmipY; // y of the MIP in LORS
325 AliTrackPointArray *fPoints;// Array of track space points in the global frame
327 AliESDfriendTrack *fFriendTrack; //! All the complementary information
331 AliESDtrack & operator=(const AliESDtrack & ) {return *this;}
333 ClassDef(AliESDtrack,27) //ESDtrack