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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
6/* $Id$ */
7
8//-------------------------------------------------------------------------
9// Class AliESDtrack
10// This is the class to deal with during the physics analysis of data
11//
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 * *
24 * The Get*Label() getters return the label of the associated MC particle. *
25 * The absolute value of this label is the index of the particle within the *
26 * MC stack. If the label is negative, this track was assigned a certain *
27 * number of clusters that did not in fact belong to this track. *
28 *****************************************************************************/
29
30#include <TBits.h>
31#include "AliExternalTrackParam.h"
32#include "AliVTrack.h"
33#include "AliPID.h"
34#include "AliESDfriendTrack.h"
35
36class TParticle;
37class AliESDVertex;
38class AliKalmanTrack;
39class AliTrackPointArray;
40class TPolyMarker3D;
41
42class AliESDtrack : public AliExternalTrackParam {
43public:
44 enum {
45 kITSin=0x0001,kITSout=0x0002,kITSrefit=0x0004,kITSpid=0x0008,
46 kTPCin=0x0010,kTPCout=0x0020,kTPCrefit=0x0040,kTPCpid=0x0080,
47 kTRDin=0x0100,kTRDout=0x0200,kTRDrefit=0x0400,kTRDpid=0x0800,
48 kTOFin=0x1000,kTOFout=0x2000,kTOFrefit=0x4000,kTOFpid=0x8000,
49 kHMPIDout=0x10000,kHMPIDpid=0x20000,
50 kEMCALmatch=0x40000,
51 kTRDbackup=0x80000,
52 kTRDStop=0x20000000,
53 kESDpid=0x40000000,
54 kTIME=0x80000000,
55 kGlobalMerge=0x08000000
56 };
57 enum {
58 kTRDnPlanes = 6,
59 kEMCALNoMatch = -4096
60 };
61 AliESDtrack();
62 AliESDtrack(const AliESDtrack& track);
63 AliESDtrack(const AliVTrack* track);
64 AliESDtrack(TParticle * part);
65 virtual ~AliESDtrack();
66 virtual void Copy(TObject &obj) const;
67 const AliESDfriendTrack *GetFriendTrack() const {return fFriendTrack;}
68 void SetFriendTrack(const AliESDfriendTrack *t) {
69 delete fFriendTrack; fFriendTrack=new AliESDfriendTrack(*t);
70 }
71 void ReleaseESDfriendTrack() { delete fFriendTrack; fFriendTrack=0; }
72 void AddCalibObject(TObject * object); // add calib object to the list
73 TObject * GetCalibObject(Int_t index); // return calib objct at given position
74 void MakeMiniESDtrack();
75 void SetID(Int_t id) { fID =id;}
76 Int_t GetID() const { return fID;}
77 void SetStatus(ULong_t flags) {fFlags|=flags;}
78 void ResetStatus(ULong_t flags) {fFlags&=~flags;}
79 Bool_t UpdateTrackParams(const AliKalmanTrack *t, ULong_t flags);
80 void SetIntegratedLength(Double_t l) {fTrackLength=l;}
81 void SetIntegratedTimes(const Double_t *times);
82 void SetESDpid(const Double_t *p);
83 void GetESDpid(Double_t *p) const;
84 virtual const Double_t *PID() const { return fR; }
85
86 Bool_t IsOn(Int_t mask) const {return (fFlags&mask)>0;}
87 ULong_t GetStatus() const {return fFlags;}
88 Int_t GetLabel() const {return fLabel;}
89 void SetLabel(Int_t label) {fLabel = label;}
90
91 void GetExternalParameters(Double_t &x, Double_t p[5]) const;
92 void GetExternalCovariance(Double_t cov[15]) const;
93
94 Double_t GetIntegratedLength() const {return fTrackLength;}
95 void GetIntegratedTimes(Double_t *times) const;
96 Double_t GetMass() const;
97 Double_t M() const { return GetMass(); }
98 Double_t E() const;
99 Double_t Y() const;
100
101 Bool_t GetConstrainedPxPyPz(Double_t *p) const {
102 if (!fCp) return kFALSE;
103 return fCp->GetPxPyPz(p);
104 }
105 Bool_t GetConstrainedXYZ(Double_t *r) const {
106 if (!fCp) return kFALSE;
107 return fCp->GetXYZ(r);
108 }
109 const AliExternalTrackParam *GetConstrainedParam() const {return fCp;}
110 Bool_t GetConstrainedExternalParameters
111 (Double_t &alpha, Double_t &x, Double_t p[5]) const;
112 Bool_t GetConstrainedExternalCovariance(Double_t cov[15]) const;
113 Double_t GetConstrainedChi2() const {return fCchi2;}
114 //
115
116 // global track chi2
117 void SetGlobalChi2(Double_t chi2) {fGlobalChi2 = chi2;}
118 Double_t GetGlobalChi2() const {return fGlobalChi2;}
119
120 Bool_t GetInnerPxPyPz(Double_t *p) const {
121 if (!fIp) return kFALSE;
122 return fIp->GetPxPyPz(p);
123 }
124 const AliExternalTrackParam * GetInnerParam() const { return fIp;}
125 const AliExternalTrackParam * GetTPCInnerParam() const {return fTPCInner;}
126 Bool_t FillTPCOnlyTrack(AliESDtrack &track);
127 Bool_t GetInnerXYZ(Double_t *r) const {
128 if (!fIp) return kFALSE;
129 return fIp->GetXYZ(r);
130 }
131 Bool_t GetInnerExternalParameters
132 (Double_t &alpha, Double_t &x, Double_t p[5]) const;
133 Bool_t GetInnerExternalCovariance(Double_t cov[15]) const;
134
135 void SetOuterParam(const AliExternalTrackParam *p, ULong_t flags);
136
137 const AliExternalTrackParam * GetOuterParam() const { return fOp;}
138 Bool_t GetOuterPxPyPz(Double_t *p) const {
139 if (!fOp) return kFALSE;
140 return fOp->GetPxPyPz(p);
141 }
142 Bool_t GetOuterXYZ(Double_t *r) const {
143 if (!fOp) return kFALSE;
144 return fOp->GetXYZ(r);
145 }
146 Bool_t GetOuterExternalParameters
147 (Double_t &alpha, Double_t &x, Double_t p[5]) const;
148 Bool_t GetOuterExternalCovariance(Double_t cov[15]) const;
149
150
151 Int_t GetNcls(Int_t idet) const;
152 Int_t GetClusters(Int_t idet, Int_t *idx) const;
153
154 void SetITSpid(const Double_t *p);
155 void GetITSpid(Double_t *p) const;
156 Double_t GetITSsignal() const {return fITSsignal;}
157 Double_t GetITSchi2() const {return fITSchi2;}
158 Char_t GetITSclusters(Int_t *idx) const;
159 UChar_t GetITSClusterMap() const {return fITSClusterMap;}
160 void SetITSModuleIndex(Int_t ilayer,Int_t idx) {fITSModule[ilayer]=idx;}
161 Int_t GetITSModuleIndex(Int_t ilayer) const {return fITSModule[ilayer];}
162 Bool_t GetITSModuleIndexInfo(Int_t ilayer,Int_t &idet,Int_t &status,
163 Float_t &xloc,Float_t &zloc) const;
164 Int_t GetITSLabel() const {return fITSLabel;}
165 void SetITStrack(AliKalmanTrack * track){
166 fFriendTrack->SetITStrack(track);
167 }
168 AliKalmanTrack *GetITStrack(){
169 return fFriendTrack->GetITStrack();
170 }
171 Bool_t HasPointOnITSLayer(Int_t i) const {return TESTBIT(fITSClusterMap,i);}
172
173 void SetTPCpid(const Double_t *p);
174 void GetTPCpid(Double_t *p) const;
175 void SetTPCPoints(Float_t points[4]){
176 for (Int_t i=0;i<4;i++) fTPCPoints[i]=points[i];
177 }
178 void SetTPCPointsF(UChar_t findable){fTPCnclsF = findable;}
179 UShort_t GetTPCNcls() const { return fTPCncls;}
180 UShort_t GetTPCNclsF() const { return fTPCnclsF;}
181 Double_t GetTPCPoints(Int_t i) const {return fTPCPoints[i];}
182 void SetKinkIndexes(Int_t points[3]) {
183 for (Int_t i=0;i<3;i++) fKinkIndexes[i] = points[i];
184 }
185 void SetV0Indexes(Int_t points[3]) {
186 for (Int_t i=0;i<3;i++) fV0Indexes[i] = points[i];
187 }
188 void SetTPCsignal(Float_t signal, Float_t sigma, UChar_t npoints){
189 fTPCsignal = signal; fTPCsignalS = sigma; fTPCsignalN = npoints;
190 }
191 Double_t GetTPCsignal() const {return fTPCsignal;}
192 Double_t GetTPCsignalSigma() const {return fTPCsignalS;}
193 UShort_t GetTPCsignalN() const {return fTPCsignalN;}
194 Double_t GetTPCchi2() const {return fTPCchi2;}
195 UShort_t GetTPCclusters(Int_t *idx) const;
196 Double_t GetTPCdensity(Int_t row0, Int_t row1) const;
197 Int_t GetTPCLabel() const {return fTPCLabel;}
198 Int_t GetKinkIndex(Int_t i) const { return fKinkIndexes[i];}
199 Int_t GetV0Index(Int_t i) const { return fV0Indexes[i];}
200 const TBits& GetTPCClusterMap() const {return fTPCClusterMap;}
201 const TBits& GetTPCSharedMap() const {return fTPCSharedMap;}
202 void SetTPCClusterMap(const TBits amap) {fTPCClusterMap = amap;}
203 void SetTPCSharedMap(const TBits amap) {fTPCSharedMap = amap;}
204
205 void SetTRDpid(const Double_t *p);
206
207// A.Bercuci
208 void SetTRDntracklets(UChar_t q){fTRDntracklets = q;}
209 UChar_t GetTRDntrackletsPID() const {return (fTRDntracklets>>3)&7;}
210 UChar_t GetTRDntracklets() const {return fTRDntracklets&7;}
211// end A.Bercuci
212
213 void SetNumberOfTRDslices(Int_t n);
214 Int_t GetNumberOfTRDslices() const {return fTRDnSlices/kTRDnPlanes;}
215 void SetTRDslice(Double_t q, Int_t plane, Int_t slice);
216 Double_t GetTRDslice(Int_t plane, Int_t slice=-1) const;
217
218 void SetTRDQuality(Float_t quality){fTRDQuality=quality;}
219 Double_t GetTRDQuality()const {return fTRDQuality;}
220 void SetTRDBudget(Float_t budget){fTRDBudget=budget;}
221 Double_t GetTRDBudget()const {return fTRDBudget;}
222
223 void SetTRDTimBin(Int_t timbin, Int_t i) {fTRDTimBin[i]=timbin;}
224 void GetTRDpid(Double_t *p) const;
225 Double_t GetTRDsignal() const {return fTRDsignal;}
226
227 Char_t GetTRDTimBin(Int_t i) const {return fTRDTimBin[i];}
228 Double_t GetTRDchi2() const {return fTRDchi2;}
229 UChar_t GetTRDclusters(Int_t *idx) const;
230 UChar_t GetTRDncls() const {return fTRDncls;}
231 UChar_t GetTRDncls0() const {return fTRDncls0;}
232 UChar_t GetTRDtracklets(Int_t *idx) const;
233 void SetTRDpid(Int_t iSpecies, Float_t p);
234 Double_t GetTRDpid(Int_t iSpecies) const;
235 Int_t GetTRDLabel() const {return fTRDLabel;}
236
237 void SetTRDtrack(AliKalmanTrack * track){
238 fFriendTrack->SetTRDtrack(track);
239 }
240 AliKalmanTrack *GetTRDtrack(){
241 return fFriendTrack->GetTRDtrack();
242 }
243
244 void SetTOFsignal(Double_t tof) {fTOFsignal=tof;}
245 Double_t GetTOFsignal() const {return fTOFsignal;}
246 void SetTOFsignalToT(Double_t ToT) {fTOFsignalToT=ToT;}
247 Double_t GetTOFsignalToT() const {return fTOFsignalToT;}
248 void SetTOFsignalRaw(Double_t tof) {fTOFsignalRaw=tof;}
249 Double_t GetTOFsignalRaw() const {return fTOFsignalRaw;}
250 void SetTOFsignalDz(Double_t dz) {fTOFsignalDz=dz;}
251 Double_t GetTOFsignalDz() const {return fTOFsignalDz;}
252 Double_t GetTOFchi2() const {return fTOFchi2;}
253 void SetTOFpid(const Double_t *p);
254 void SetTOFLabel(const Int_t *p);
255 void GetTOFpid(Double_t *p) const;
256 void GetTOFLabel(Int_t *p) const;
257 void GetTOFInfo(Float_t *info) const;
258 void SetTOFInfo(Float_t *info);
259 Int_t GetTOFCalChannel() const {return fTOFCalChannel;}
260 Int_t GetTOFcluster() const {return fTOFindex;}
261 void SetTOFcluster(Int_t index) {fTOFindex=index;}
262 void SetTOFCalChannel(Int_t index) {fTOFCalChannel=index;}
263
264// HMPID methodes +++++++++++++++++++++++++++++++++ (kir)
265 void SetHMPIDsignal(Double_t theta) {fHMPIDsignal=theta;}
266 Double_t GetHMPIDsignal() const {return fHMPIDsignal;}
267 void SetHMPIDpid(const Double_t *p);
268 void GetHMPIDpid(Double_t *p) const;
269 void SetHMPIDchi2(Double_t chi2) {fHMPIDchi2=chi2;}
270 Double_t GetHMPIDchi2() const {return fHMPIDchi2;}
271 void SetHMPIDcluIdx(Int_t ch,Int_t idx) {fHMPIDcluIdx=ch*1000000+idx;}
272 Int_t GetHMPIDcluIdx() const {return fHMPIDcluIdx;}
273 void SetHMPIDtrk(Float_t x, Float_t y, Float_t th, Float_t ph) {
274 fHMPIDtrkX=x; fHMPIDtrkY=y; fHMPIDtrkTheta=th; fHMPIDtrkPhi=ph;
275 }
276 void GetHMPIDtrk(Float_t &x, Float_t &y, Float_t &th, Float_t &ph) const {
277 x=fHMPIDtrkX; y=fHMPIDtrkY; th=fHMPIDtrkTheta; ph=fHMPIDtrkPhi;
278 }
279 void SetHMPIDmip(Float_t x, Float_t y, Int_t q, Int_t nph=0) {
280 fHMPIDmipX=x; fHMPIDmipY=y; fHMPIDqn=1000000*nph+q;
281 }
282 void GetHMPIDmip(Float_t &x,Float_t &y,Int_t &q,Int_t &nph) const {
283 x=fHMPIDmipX; y=fHMPIDmipY; q=fHMPIDqn%1000000; nph=fHMPIDqn/1000000;
284 }
285 Bool_t IsHMPID() const {return fFlags&kHMPIDpid;}
286
287
288 Int_t GetEMCALcluster() {return fEMCALindex;}
289 void SetEMCALcluster(Int_t index) {fEMCALindex=index;}
290 Bool_t IsEMCAL() const {return fFlags&kEMCALmatch;}
291
292 void SetTrackPointArray(AliTrackPointArray *points) {
293 fFriendTrack->SetTrackPointArray(points);
294 }
295 const AliTrackPointArray *GetTrackPointArray() const {
296 return fFriendTrack->GetTrackPointArray();
297 }
298 Bool_t RelateToVertexTPC(const AliESDVertex *vtx, Double_t b, Double_t maxd,
299 AliExternalTrackParam *cParam=0);
300 void GetImpactParametersTPC(Float_t &xy,Float_t &z) const {xy=fdTPC; z=fzTPC;}
301 void GetImpactParametersTPC(Float_t p[2], Float_t cov[3]) const {
302 p[0]=fdTPC; p[1]=fzTPC; cov[0]=fCddTPC; cov[1]=fCdzTPC; cov[2]=fCzzTPC;
303 }
304 Double_t GetConstrainedChi2TPC() const {return fCchi2TPC;}
305
306 Bool_t RelateToVertex(const AliESDVertex *vtx, Double_t b, Double_t maxd,
307 AliExternalTrackParam *cParam=0);
308 void GetImpactParameters(Float_t &xy,Float_t &z) const {xy=fD; z=fZ;}
309 void GetImpactParameters(Float_t p[2], Float_t cov[3]) const {
310 p[0]=fD; p[1]=fZ; cov[0]=fCdd; cov[1]=fCdz; cov[2]=fCzz;
311 }
312 virtual void Print(Option_t * opt) const ;
313 //
314 // visualization (M. Ivanov)
315 //
316 void FillPolymarker(TPolyMarker3D *pol, Float_t magf, Float_t minR, Float_t maxR, Float_t stepR);
317
318protected:
319
320 AliExternalTrackParam *fCp; // Track parameters constrained to the primary vertex
321 AliExternalTrackParam *fIp; // Track parameters estimated at the inner wall of TPC
322 AliExternalTrackParam *fTPCInner; // Track parameters estimated at the inner wall of TPC using the TPC stand-alone
323 AliExternalTrackParam *fOp; // Track parameters estimated at the point of maximal radial coordinate reached during the tracking
324 AliESDfriendTrack *fFriendTrack; //! All the complementary information
325
326 TBits fTPCClusterMap; // Map of clusters, one bit per padrow; 1 if has a cluster on given padrow
327 TBits fTPCSharedMap; // Map of clusters, one bit per padrow; 1 if has a shared cluster on given padrow
328
329
330
331 ULong_t fFlags; // Reconstruction status flags
332 Int_t fID; // Unique ID of the track
333 Int_t fLabel; // Track label
334 Int_t fITSLabel; // label according ITS
335 Int_t fITSModule[12]; // modules crossed by the track in the ITS
336 Int_t fTPCLabel; // label according TPC
337 Int_t fTRDLabel; // label according TRD
338 Int_t fTOFLabel[3]; // TOF label
339 Int_t fTOFCalChannel; // Channel Index of the TOF Signal
340 Int_t fTOFindex; // index of the assigned TOF cluster
341 Int_t fHMPIDqn; // 1000000*number of photon clusters + QDC
342 Int_t fHMPIDcluIdx; // 1000000*chamber id + cluster idx of the assigned MIP cluster
343 Int_t fEMCALindex; // index of associated EMCAL cluster (AliESDCaloCluster)
344
345
346 Int_t fKinkIndexes[3]; // array of indexes of posible kink candidates
347 Int_t fV0Indexes[3]; // array of indexes of posible kink candidates
348
349 Double32_t fR[AliPID::kSPECIES]; //[0.,0.,8] combined "detector response probability"
350 Double32_t fITSr[AliPID::kSPECIES]; //[0.,0.,8] "detector response probabilities" (for the PID)
351 Double32_t fTPCr[AliPID::kSPECIES]; //[0.,0.,8] "detector response probabilities" (for the PID)
352 Double32_t fTRDr[AliPID::kSPECIES]; //[0.,0.,8] "detector response probabilities" (for the PID)
353 Double32_t fTOFr[AliPID::kSPECIES]; //[0.,0.,8] "detector response probabilities" (for the PID)
354 Double32_t fHMPIDr[AliPID::kSPECIES];//[0.,0.,8] "detector response probabilities" (for the PID)
355
356 Double32_t fHMPIDtrkTheta;//[-2*pi,2*pi,16] theta of the track extrapolated to the HMPID, LORS
357 // how much of this is needed?
358 Double32_t fHMPIDtrkPhi; //[-2*pi,2*pi,16] phi of the track extrapolated to the HMPID, LORS
359 Double32_t fHMPIDsignal; // HMPID PID signal (Theta ckov, rad)
360
361 Double32_t fTrackTime[AliPID::kSPECIES]; // TOFs estimated by the tracking
362 Double32_t fTrackLength; // Track length
363
364 Double32_t fdTPC; // TPC-only impact parameter in XY plane
365 Double32_t fzTPC; // TPC-only impact parameter in Z
366 Double32_t fCddTPC,fCdzTPC,fCzzTPC; // Covariance matrix of the TPC-only impact parameters
367 Double32_t fCchi2TPC; // [0.,0.,8] TPC-only chi2 at the primary vertex
368
369 Double32_t fD; // Impact parameter in XY plane
370 Double32_t fZ; // Impact parameter in Z
371 Double32_t fCdd,fCdz,fCzz; // Covariance matrix of the impact parameters
372 Double32_t fCchi2; // [0.,0.,8] chi2 at the primary vertex
373
374 Double32_t fITSchi2; // [0.,0.,8] chi2 in the ITS
375 Double32_t fTPCchi2; // [0.,0.,8] chi2 in the TPC
376 Double32_t fTRDchi2; // [0.,0.,8] chi2 in the TRD
377 Double32_t fTOFchi2; // [0.,0.,8] chi2 in the TOF
378 Double32_t fHMPIDchi2; // [0.,0.,8] chi2 in the HMPID
379
380 Double32_t fGlobalChi2; // [0.,0.,8] chi2 of the global track
381
382 Double32_t fITSsignal; // [0.,0.,10] detector's PID signal
383 Double32_t fTPCsignal; // [0.,0.,10] detector's PID signal
384 Double32_t fTPCsignalS; // [0.,0.,10] RMS of dEdx measurement
385 Double32_t fTPCPoints[4]; // [0.,0.,10] TPC points -first, max. dens, last and max density
386
387 Double32_t fTRDsignal; // detector's PID signal
388 Double32_t fTRDQuality; // trd quality factor for TOF
389 Double32_t fTRDBudget; // trd material budget
390
391 Double32_t fTOFsignal; // detector's PID signal
392 Double32_t fTOFsignalToT; // detector's ToT signal
393 Double32_t fTOFsignalRaw; // detector's uncorrected time signal
394 Double32_t fTOFsignalDz; // local z of track's impact on the TOF pad
395 Double32_t fTOFInfo[10]; //! TOF informations
396
397 Double32_t fHMPIDtrkX; // x of the track impact, LORS
398 Double32_t fHMPIDtrkY; // y of the track impact, LORS
399 Double32_t fHMPIDmipX; // x of the MIP in LORS
400 Double32_t fHMPIDmipY; // y of the MIP in LORS
401
402
403 UShort_t fTPCncls; // number of clusters assigned in the TPC
404 UShort_t fTPCnclsF; // number of findable clusters in the TPC
405 UShort_t fTPCsignalN; // number of points used for dEdx
406
407 Char_t fITSncls; // number of clusters assigned in the ITS
408 UChar_t fITSClusterMap; // map of clusters, one bit per a layer
409 UChar_t fTRDncls; // number of clusters assigned in the TRD
410 UChar_t fTRDncls0; // number of clusters assigned in the TRD before first material cross
411 UChar_t fTRDntracklets; // number of TRD tracklets used for tracking/PID
412
413 Int_t fTRDnSlices; // number of slices used for PID in the TRD
414 Double32_t *fTRDslices; //[fTRDnSlices]
415
416 Char_t fTRDTimBin[kTRDnPlanes]; // Time bin of Max cluster from all six planes
417
418 private:
419
420 AliESDtrack & operator=(const AliESDtrack & );
421 ClassDef(AliESDtrack,48) //ESDtrack
422};
423
424#endif
425