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)) *
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 *****************************************************************************/
31 #include "AliExternalTrackParam.h"
32 #include "AliVTrack.h"
34 #include "AliESDfriendTrack.h"
39 class AliTrackPointArray;
42 class AliESDtrack : public AliExternalTrackParam {
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,
55 kGlobalMerge=0x08000000,
63 AliESDtrack(const AliESDtrack& track);
64 AliESDtrack(const AliVTrack* track);
65 AliESDtrack(TParticle * part);
66 virtual ~AliESDtrack();
67 virtual void Copy(TObject &obj) const;
68 const AliESDfriendTrack *GetFriendTrack() const {return fFriendTrack;}
69 void SetFriendTrack(const AliESDfriendTrack *t) {
70 delete fFriendTrack; fFriendTrack=new AliESDfriendTrack(*t);
72 void ReleaseESDfriendTrack() { delete fFriendTrack; fFriendTrack=0; }
73 void AddCalibObject(TObject * object); // add calib object to the list
74 TObject * GetCalibObject(Int_t index); // return calib objct at given position
75 void MakeMiniESDtrack();
76 void SetID(Int_t id) { fID =id;}
77 Int_t GetID() const { return fID;}
78 void SetVertexID(Char_t id) { fVertexID=id;}
79 Char_t GetVertexID() const { return fVertexID;}
80 void SetStatus(ULong_t flags) {fFlags|=flags;}
81 void ResetStatus(ULong_t flags) {fFlags&=~flags;}
82 Bool_t UpdateTrackParams(const AliKalmanTrack *t, ULong_t flags);
83 void SetIntegratedLength(Double_t l) {fTrackLength=l;}
84 void SetIntegratedTimes(const Double_t *times);
85 void SetESDpid(const Double_t *p);
86 void GetESDpid(Double_t *p) const;
87 virtual const Double_t *PID() const { return fR; }
89 Bool_t IsOn(Int_t mask) const {return (fFlags&mask)>0;}
90 ULong_t GetStatus() const {return fFlags;}
91 Int_t GetLabel() const {return fLabel;}
92 void SetLabel(Int_t label) {fLabel = label;}
94 void GetExternalParameters(Double_t &x, Double_t p[5]) const;
95 void GetExternalCovariance(Double_t cov[15]) const;
97 Double_t GetIntegratedLength() const {return fTrackLength;}
98 void GetIntegratedTimes(Double_t *times) const;
99 Double_t GetMass() const;
100 Double_t M() const { return GetMass(); }
104 Bool_t GetConstrainedPxPyPz(Double_t *p) const {
105 if (!fCp) return kFALSE;
106 return fCp->GetPxPyPz(p);
108 Bool_t GetConstrainedXYZ(Double_t *r) const {
109 if (!fCp) return kFALSE;
110 return fCp->GetXYZ(r);
112 const AliExternalTrackParam *GetConstrainedParam() const {return fCp;}
113 Bool_t GetConstrainedExternalParameters
114 (Double_t &alpha, Double_t &x, Double_t p[5]) const;
115 Bool_t GetConstrainedExternalCovariance(Double_t cov[15]) const;
116 Double_t GetConstrainedChi2() const {return fCchi2;}
120 void SetGlobalChi2(Double_t chi2) {fGlobalChi2 = chi2;}
121 Double_t GetGlobalChi2() const {return fGlobalChi2;}
123 Bool_t GetInnerPxPyPz(Double_t *p) const {
124 if (!fIp) return kFALSE;
125 return fIp->GetPxPyPz(p);
127 const AliExternalTrackParam * GetInnerParam() const { return fIp;}
128 const AliExternalTrackParam * GetTPCInnerParam() const {return fTPCInner;}
129 Bool_t FillTPCOnlyTrack(AliESDtrack &track);
130 Bool_t GetInnerXYZ(Double_t *r) const {
131 if (!fIp) return kFALSE;
132 return fIp->GetXYZ(r);
134 Bool_t GetInnerExternalParameters
135 (Double_t &alpha, Double_t &x, Double_t p[5]) const;
136 Bool_t GetInnerExternalCovariance(Double_t cov[15]) const;
138 void SetOuterParam(const AliExternalTrackParam *p, ULong_t flags);
140 void SetOuterHmpParam(const AliExternalTrackParam *p, ULong_t flags);
142 const AliExternalTrackParam * GetOuterParam() const { return fOp;}
144 const AliExternalTrackParam * GetOuterHmpParam() const { return fHMPIDp;}
146 Bool_t GetOuterPxPyPz(Double_t *p) const {
147 if (!fOp) return kFALSE;
148 return fOp->GetPxPyPz(p);
150 Bool_t GetOuterHmpPxPyPz(Double_t *p) const {
151 if (!fHMPIDp) return kFALSE;
152 return fHMPIDp->GetPxPyPz(p);
155 Bool_t GetOuterXYZ(Double_t *r) const {
156 if (!fOp) return kFALSE;
157 return fOp->GetXYZ(r);
159 Bool_t GetOuterHmpXYZ(Double_t *r) const {
160 if (!fHMPIDp) return kFALSE;
161 return fHMPIDp->GetXYZ(r);
164 Bool_t GetOuterExternalParameters
165 (Double_t &alpha, Double_t &x, Double_t p[5]) const;
166 Bool_t GetOuterExternalCovariance(Double_t cov[15]) const;
168 Bool_t GetOuterHmpExternalParameters
169 (Double_t &alpha, Double_t &x, Double_t p[5]) const;
170 Bool_t GetOuterHmpExternalCovariance(Double_t cov[15]) const;
173 Int_t GetNcls(Int_t idet) const;
174 Int_t GetClusters(Int_t idet, Int_t *idx) const;
176 void SetITSpid(const Double_t *p);
177 void GetITSpid(Double_t *p) const;
179 Double_t GetITSsignal() const {return fITSsignal;}
180 void SetITSdEdxSamples(const Double_t s[4]);
181 void GetITSdEdxSamples(Double_t *s) const;
183 Double_t GetITSchi2() const {return fITSchi2;}
184 Char_t GetITSclusters(Int_t *idx) const;
185 UChar_t GetITSClusterMap() const {return fITSClusterMap;}
186 void SetITSModuleIndex(Int_t ilayer,Int_t idx) {fITSModule[ilayer]=idx;}
187 Int_t GetITSModuleIndex(Int_t ilayer) const {return fITSModule[ilayer];}
188 Bool_t GetITSModuleIndexInfo(Int_t ilayer,Int_t &idet,Int_t &status,
189 Float_t &xloc,Float_t &zloc) const;
190 Int_t GetITSLabel() const {return fITSLabel;}
191 void SetITStrack(AliKalmanTrack * track){
192 fFriendTrack->SetITStrack(track);
194 AliKalmanTrack *GetITStrack(){
195 return fFriendTrack->GetITStrack();
197 Bool_t HasPointOnITSLayer(Int_t i) const {return TESTBIT(fITSClusterMap,i);}
199 void SetTPCpid(const Double_t *p);
200 void GetTPCpid(Double_t *p) const;
201 void SetTPCPoints(Float_t points[4]){
202 for (Int_t i=0;i<4;i++) fTPCPoints[i]=points[i];
204 void SetTPCPointsF(UChar_t findable){fTPCnclsF = findable;}
205 UShort_t GetTPCNcls() const { return fTPCncls;}
206 UShort_t GetTPCNclsF() const { return fTPCnclsF;}
207 Double_t GetTPCPoints(Int_t i) const {return fTPCPoints[i];}
208 void SetKinkIndexes(Int_t points[3]) {
209 for (Int_t i=0;i<3;i++) fKinkIndexes[i] = points[i];
211 void SetV0Indexes(Int_t points[3]) {
212 for (Int_t i=0;i<3;i++) fV0Indexes[i] = points[i];
214 void SetTPCsignal(Float_t signal, Float_t sigma, UChar_t npoints){
215 fTPCsignal = signal; fTPCsignalS = sigma; fTPCsignalN = npoints;
217 Double_t GetTPCsignal() const {return fTPCsignal;}
218 Double_t GetTPCsignalSigma() const {return fTPCsignalS;}
219 UShort_t GetTPCsignalN() const {return fTPCsignalN;}
220 Double_t GetTPCchi2() const {return fTPCchi2;}
221 UShort_t GetTPCclusters(Int_t *idx) const;
222 Double_t GetTPCdensity(Int_t row0, Int_t row1) const;
223 Int_t GetTPCLabel() const {return fTPCLabel;}
224 Int_t GetKinkIndex(Int_t i) const { return fKinkIndexes[i];}
225 Int_t GetV0Index(Int_t i) const { return fV0Indexes[i];}
226 const TBits& GetTPCClusterMap() const {return fTPCClusterMap;}
227 const TBits& GetTPCSharedMap() const {return fTPCSharedMap;}
228 void SetTPCClusterMap(const TBits amap) {fTPCClusterMap = amap;}
229 void SetTPCSharedMap(const TBits amap) {fTPCSharedMap = amap;}
231 void SetTRDpid(const Double_t *p);
234 void SetTRDntracklets(UChar_t q){fTRDntracklets = q;}
235 UChar_t GetTRDntracklets() const {return (fTRDntracklets>>3)&7;}
236 UChar_t GetTRDntrackletsPID() const {return fTRDntracklets&7;}
237 // TEMPORARY alias asked by the HFE group to allow
238 // reading of the v4-16-Release data with TRUNK related software (A.Bercuci@Apr 30th 09)
239 UChar_t GetTRDpidQuality() const {return GetTRDntrackletsPID();}
242 void SetNumberOfTRDslices(Int_t n);
243 Int_t GetNumberOfTRDslices() const;
244 void SetTRDslice(Double_t q, Int_t plane, Int_t slice);
245 void SetTRDmomentum(Double_t p, Int_t plane, Double_t *sp=0x0);
246 Double_t GetTRDslice(Int_t plane, Int_t slice=-1) const;
247 Double_t GetTRDmomentum(Int_t plane, Double_t *sp=0x0) const;
249 void SetTRDQuality(Float_t quality){fTRDQuality=quality;}
250 Double_t GetTRDQuality()const {return fTRDQuality;}
251 void SetTRDBudget(Float_t budget){fTRDBudget=budget;}
252 Double_t GetTRDBudget()const {return fTRDBudget;}
254 void SetTRDTimBin(Int_t timbin, Int_t i) {fTRDTimBin[i]=timbin;}
255 void GetTRDpid(Double_t *p) const;
256 Double_t GetTRDsignal() const {return fTRDsignal;}
258 Char_t GetTRDTimBin(Int_t i) const {return fTRDTimBin[i];}
259 Double_t GetTRDchi2() const {return fTRDchi2;}
260 UChar_t GetTRDclusters(Int_t *idx) const;
261 UChar_t GetTRDncls() const {return fTRDncls;}
262 UChar_t GetTRDncls0() const {return fTRDncls0;}
263 UChar_t GetTRDtracklets(Int_t *idx) const;
264 void SetTRDpid(Int_t iSpecies, Float_t p);
265 Double_t GetTRDpid(Int_t iSpecies) const;
266 Int_t GetTRDLabel() const {return fTRDLabel;}
268 void SetTRDtrack(AliKalmanTrack * track){
269 fFriendTrack->SetTRDtrack(track);
271 AliKalmanTrack *GetTRDtrack(){
272 return fFriendTrack->GetTRDtrack();
275 void SetTOFsignal(Double_t tof) {fTOFsignal=tof;}
276 Double_t GetTOFsignal() const {return fTOFsignal;}
277 void SetTOFsignalToT(Double_t ToT) {fTOFsignalToT=ToT;}
278 Double_t GetTOFsignalToT() const {return fTOFsignalToT;}
279 void SetTOFsignalRaw(Double_t tof) {fTOFsignalRaw=tof;}
280 Double_t GetTOFsignalRaw() const {return fTOFsignalRaw;}
281 void SetTOFsignalDz(Double_t dz) {fTOFsignalDz=dz;}
282 Double_t GetTOFsignalDz() const {return fTOFsignalDz;}
283 void SetTOFsignalDx(Double_t dx) {fTOFsignalDx=dx;}
284 Double_t GetTOFsignalDx() const {return fTOFsignalDx;}
285 Double_t GetTOFchi2() const {return fTOFchi2;}
286 void SetTOFpid(const Double_t *p);
287 void SetTOFLabel(const Int_t *p);
288 void GetTOFpid(Double_t *p) const;
289 void GetTOFLabel(Int_t *p) const;
290 void GetTOFInfo(Float_t *info) const;
291 void SetTOFInfo(Float_t *info);
292 Int_t GetTOFCalChannel() const {return fTOFCalChannel;}
293 Int_t GetTOFcluster() const {return fTOFindex;}
294 void SetTOFcluster(Int_t index) {fTOFindex=index;}
295 void SetTOFCalChannel(Int_t index) {fTOFCalChannel=index;}
297 // HMPID methodes +++++++++++++++++++++++++++++++++ (kir)
298 void SetHMPIDsignal(Double_t theta) {fHMPIDsignal=theta;}
299 Double_t GetHMPIDsignal() const {return fHMPIDsignal;}
300 void SetHMPIDpid(const Double_t *p);
301 void GetHMPIDpid(Double_t *p) const;
302 void SetHMPIDchi2(Double_t chi2) {fHMPIDchi2=chi2;}
303 Double_t GetHMPIDchi2() const {return fHMPIDchi2;}
304 void SetHMPIDcluIdx(Int_t ch,Int_t idx) {fHMPIDcluIdx=ch*1000000+idx;}
305 Int_t GetHMPIDcluIdx() const {return fHMPIDcluIdx;}
306 void SetHMPIDtrk(Float_t x, Float_t y, Float_t th, Float_t ph) {
307 fHMPIDtrkX=x; fHMPIDtrkY=y; fHMPIDtrkTheta=th; fHMPIDtrkPhi=ph;
309 void GetHMPIDtrk(Float_t &x, Float_t &y, Float_t &th, Float_t &ph) const {
310 x=fHMPIDtrkX; y=fHMPIDtrkY; th=fHMPIDtrkTheta; ph=fHMPIDtrkPhi;
312 void SetHMPIDmip(Float_t x, Float_t y, Int_t q, Int_t nph=0) {
313 fHMPIDmipX=x; fHMPIDmipY=y; fHMPIDqn=1000000*nph+q;
315 void GetHMPIDmip(Float_t &x,Float_t &y,Int_t &q,Int_t &nph) const {
316 x=fHMPIDmipX; y=fHMPIDmipY; q=fHMPIDqn%1000000; nph=fHMPIDqn/1000000;
318 Bool_t IsHMPID() const {return fFlags&kHMPIDpid;}
319 Bool_t IsPureITSStandalone() const {return fFlags&kITSpureSA;}
322 Int_t GetEMCALcluster() {return fEMCALindex;}
323 void SetEMCALcluster(Int_t index) {fEMCALindex=index;}
324 Bool_t IsEMCAL() const {return fFlags&kEMCALmatch;}
326 void SetTrackPointArray(AliTrackPointArray *points) {
327 fFriendTrack->SetTrackPointArray(points);
329 const AliTrackPointArray *GetTrackPointArray() const {
330 return fFriendTrack->GetTrackPointArray();
332 Bool_t RelateToVertexTPC(const AliESDVertex *vtx, Double_t b, Double_t maxd,
333 AliExternalTrackParam *cParam=0);
335 RelateToVertexTPCBxByBz(const AliESDVertex *vtx, Double_t b[3],Double_t maxd,
336 AliExternalTrackParam *cParam=0);
337 void GetImpactParametersTPC(Float_t &xy,Float_t &z) const {xy=fdTPC; z=fzTPC;}
338 void GetImpactParametersTPC(Float_t p[2], Float_t cov[3]) const {
339 p[0]=fdTPC; p[1]=fzTPC; cov[0]=fCddTPC; cov[1]=fCdzTPC; cov[2]=fCzzTPC;
341 Double_t GetConstrainedChi2TPC() const {return fCchi2TPC;}
343 Bool_t RelateToVertex(const AliESDVertex *vtx, Double_t b, Double_t maxd,
344 AliExternalTrackParam *cParam=0);
346 RelateToVertexBxByBz(const AliESDVertex *vtx, Double_t b[3], Double_t maxd,
347 AliExternalTrackParam *cParam=0);
348 void GetImpactParameters(Float_t &xy,Float_t &z) const {xy=fD; z=fZ;}
349 void GetImpactParameters(Float_t p[2], Float_t cov[3]) const {
350 p[0]=fD; p[1]=fZ; cov[0]=fCdd; cov[1]=fCdz; cov[2]=fCzz;
352 virtual void Print(Option_t * opt) const ;
354 // visualization (M. Ivanov)
356 void FillPolymarker(TPolyMarker3D *pol, Float_t magf, Float_t minR, Float_t maxR, Float_t stepR);
360 AliExternalTrackParam *fCp; // Track parameters constrained to the primary vertex
361 AliExternalTrackParam *fIp; // Track parameters estimated at the inner wall of TPC
362 AliExternalTrackParam *fTPCInner; // Track parameters estimated at the inner wall of TPC using the TPC stand-alone
363 AliExternalTrackParam *fOp; // Track parameters estimated at the point of maximal radial coordinate reached during the tracking
364 AliExternalTrackParam *fHMPIDp; // Track parameters at HMPID
365 AliESDfriendTrack *fFriendTrack; //! All the complementary information
367 TBits fTPCClusterMap; // Map of clusters, one bit per padrow; 1 if has a cluster on given padrow
368 TBits fTPCSharedMap; // Map of clusters, one bit per padrow; 1 if has a shared cluster on given padrow
372 ULong_t fFlags; // Reconstruction status flags
373 Int_t fID; // Unique ID of the track
374 Int_t fLabel; // Track label
375 Int_t fITSLabel; // label according ITS
376 Int_t fITSModule[12]; // modules crossed by the track in the ITS
377 Int_t fTPCLabel; // label according TPC
378 Int_t fTRDLabel; // label according TRD
379 Int_t fTOFLabel[3]; // TOF label
380 Int_t fTOFCalChannel; // Channel Index of the TOF Signal
381 Int_t fTOFindex; // index of the assigned TOF cluster
382 Int_t fHMPIDqn; // 1000000*number of photon clusters + QDC
383 Int_t fHMPIDcluIdx; // 1000000*chamber id + cluster idx of the assigned MIP cluster
384 Int_t fEMCALindex; // index of associated EMCAL cluster (AliESDCaloCluster)
387 Int_t fKinkIndexes[3]; // array of indexes of posible kink candidates
388 Int_t fV0Indexes[3]; // array of indexes of posible kink candidates
390 Double32_t fR[AliPID::kSPECIES]; //[0.,0.,8] combined "detector response probability"
391 Double32_t fITSr[AliPID::kSPECIES]; //[0.,0.,8] "detector response probabilities" (for the PID)
392 Double32_t fTPCr[AliPID::kSPECIES]; //[0.,0.,8] "detector response probabilities" (for the PID)
393 Double32_t fTRDr[AliPID::kSPECIES]; //[0.,0.,8] "detector response probabilities" (for the PID)
394 Double32_t fTOFr[AliPID::kSPECIES]; //[0.,0.,8] "detector response probabilities" (for the PID)
395 Double32_t fHMPIDr[AliPID::kSPECIES];//[0.,0.,8] "detector response probabilities" (for the PID)
397 Double32_t fHMPIDtrkTheta;//[-2*pi,2*pi,16] theta of the track extrapolated to the HMPID, LORS
398 // how much of this is needed?
399 Double32_t fHMPIDtrkPhi; //[-2*pi,2*pi,16] phi of the track extrapolated to the HMPID, LORS
400 Double32_t fHMPIDsignal; // HMPID PID signal (Theta ckov, rad)
402 Double32_t fTrackTime[AliPID::kSPECIES]; // TOFs estimated by the tracking
403 Double32_t fTrackLength; // Track length
405 Double32_t fdTPC; // TPC-only impact parameter in XY plane
406 Double32_t fzTPC; // TPC-only impact parameter in Z
407 Double32_t fCddTPC,fCdzTPC,fCzzTPC; // Covariance matrix of the TPC-only impact parameters
408 Double32_t fCchi2TPC; // [0.,0.,8] TPC-only chi2 at the primary vertex
410 Double32_t fD; // Impact parameter in XY plane
411 Double32_t fZ; // Impact parameter in Z
412 Double32_t fCdd,fCdz,fCzz; // Covariance matrix of the impact parameters
413 Double32_t fCchi2; // [0.,0.,8] chi2 at the primary vertex
415 Double32_t fITSchi2; // [0.,0.,8] chi2 in the ITS
416 Double32_t fTPCchi2; // [0.,0.,8] chi2 in the TPC
417 Double32_t fTRDchi2; // [0.,0.,8] chi2 in the TRD
418 Double32_t fTOFchi2; // [0.,0.,8] chi2 in the TOF
419 Double32_t fHMPIDchi2; // [0.,0.,8] chi2 in the HMPID
421 Double32_t fGlobalChi2; // [0.,0.,8] chi2 of the global track
423 Double32_t fITSsignal; // [0.,0.,10] detector's PID signal
424 Double32_t fITSdEdxSamples[4]; // [0.,0.,10] ITS dE/dx samples
426 Double32_t fTPCsignal; // [0.,0.,10] detector's PID signal
427 Double32_t fTPCsignalS; // [0.,0.,10] RMS of dEdx measurement
428 Double32_t fTPCPoints[4]; // [0.,0.,10] TPC points -first, max. dens, last and max density
430 Double32_t fTRDsignal; // detector's PID signal
431 Double32_t fTRDQuality; // trd quality factor for TOF
432 Double32_t fTRDBudget; // trd material budget
434 Double32_t fTOFsignal; // detector's PID signal
435 Double32_t fTOFsignalToT; // detector's ToT signal
436 Double32_t fTOFsignalRaw; // detector's uncorrected time signal
437 Double32_t fTOFsignalDz; // local z of track's impact on the TOF pad
438 Double32_t fTOFsignalDx; // local x of track's impact on the TOF pad
439 Double32_t fTOFInfo[10]; //! TOF informations
441 Double32_t fHMPIDtrkX; // x of the track impact, LORS
442 Double32_t fHMPIDtrkY; // y of the track impact, LORS
443 Double32_t fHMPIDmipX; // x of the MIP in LORS
444 Double32_t fHMPIDmipY; // y of the MIP in LORS
447 UShort_t fTPCncls; // number of clusters assigned in the TPC
448 UShort_t fTPCnclsF; // number of findable clusters in the TPC
449 UShort_t fTPCsignalN; // number of points used for dEdx
451 Char_t fITSncls; // number of clusters assigned in the ITS
452 UChar_t fITSClusterMap; // map of clusters, one bit per a layer
453 UChar_t fTRDncls; // number of clusters assigned in the TRD
454 UChar_t fTRDncls0; // number of clusters assigned in the TRD before first material cross
455 UChar_t fTRDntracklets; // number of TRD tracklets used for tracking/PID
457 Int_t fTRDnSlices; // number of slices used for PID in the TRD
458 Double32_t *fTRDslices; //[fTRDnSlices]
460 Char_t fTRDTimBin[kTRDnPlanes]; // Time bin of Max cluster from all six planes
461 Char_t fVertexID; // ID of the primary vertex this track belongs to
465 AliESDtrack & operator=(const AliESDtrack & );
466 ClassDef(AliESDtrack,53) //ESDtrack