3 /* Copyright(c) 1998-2007, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
8 //-------------------------------------------------------------------------
9 // AOD track implementation of AliVTrack
10 // Author: Markus Oldenburg, CERN
11 //-------------------------------------------------------------------------
16 #include "AliVTrack.h"
17 #include "AliAODVertex.h"
18 #include "AliAODRedCov.h"
19 #include "AliAODPid.h"
24 class AliAODTrack : public AliVTrack {
28 enum AODTrk_t {kUndef = -1,
34 kIsDCA=BIT(14), // set if fPosition is the DCA and not the position of the first point
35 kUsedForVtxFit=BIT(15), // set if this track was used to fit the vertex it is attached to
36 kUsedForPrimVtxFit=BIT(16), // set if this track was used to fit the primary vertex
37 kIsTPCConstrained=BIT(17), // set if this track is a SA TPC track constrained to the SPD vertex, needs to be skipped in any track loop to avoid double counting
38 kIsHybridTPCCG=BIT(18), // set if this track can be used as a hybrid track i.e. Gbobal tracks with certain slecetion plus the TPC constrained tracks that did not pass the selection
39 kIsGlobalConstrained=BIT(19), // set if this track is a global track constrained to the vertex, needs to be skipped in any track loop to avoid double counting
40 kIsHybridGCG=BIT(20)// set if this track can be used as a hybrid track i.e. tracks with certain slecetion plus the global constraint tracks that did not pass the selection
44 enum AODTrkFilterBits_t {
45 kTrkTPCOnly = BIT(0), // Standard TPC only tracks
46 kTrkITSsa = BIT(1), // ITS standalone
47 kTrkITSConstrained = BIT(2), // Pixel OR necessary for the electrons
48 kTrkElectronsPID = BIT(3), // PID for the electrons
49 kTrkGlobalNoDCA = BIT(4), // standard cuts with very loose DCA
50 kTrkGlobal = BIT(5), // standard cuts with tight DCA cut
51 kTrkGlobalSDD = BIT(6), // standard cuts with tight DCA but with requiring the first SDD cluster instead of an SPD cluster tracks selected by this cut are exclusive to those selected by the previous cut
52 kTrkTPCOnlyConstrained = BIT(7) // TPC only tracks: TPConly information constrained to SPD vertex in the filter below
71 AliAODTrack(Short_t id,
77 Double_t covMatrix[21],
81 AliAODVertex *prodVertex,
83 Bool_t usedForPrimVtxFit,
84 AODTrk_t ttype=kUndef,
86 Float_t chi2perNDF = -999.);
88 AliAODTrack(Short_t id,
94 Float_t covMatrix[21],
98 AliAODVertex *prodVertex,
100 Bool_t usedForPrimVtxFit,
101 AODTrk_t ttype=kUndef,
103 Float_t chi2perNDF = -999.);
105 virtual ~AliAODTrack();
106 AliAODTrack(const AliAODTrack& trk);
107 AliAODTrack& operator=(const AliAODTrack& trk);
110 virtual Double_t OneOverPt() const { return (fMomentum[0] != 0.) ? 1./fMomentum[0] : -999.; }
111 virtual Double_t Phi() const { return fMomentum[1]; }
112 virtual Double_t Theta() const { return fMomentum[2]; }
114 virtual Double_t Px() const { return fMomentum[0] * TMath::Cos(fMomentum[1]); }
115 virtual Double_t Py() const { return fMomentum[0] * TMath::Sin(fMomentum[1]); }
116 virtual Double_t Pz() const { return fMomentum[0] / TMath::Tan(fMomentum[2]); }
117 virtual Double_t Pt() const { return fMomentum[0]; }
118 virtual Double_t P() const { return TMath::Sqrt(Pt()*Pt()+Pz()*Pz()); }
119 virtual Bool_t PxPyPz(Double_t p[3]) const { p[0] = Px(); p[1] = Py(); p[2] = Pz(); return kTRUE; }
121 virtual Double_t Xv() const { return GetProdVertex() ? GetProdVertex()->GetX() : -999.; }
122 virtual Double_t Yv() const { return GetProdVertex() ? GetProdVertex()->GetY() : -999.; }
123 virtual Double_t Zv() const { return GetProdVertex() ? GetProdVertex()->GetZ() : -999.; }
124 virtual Bool_t XvYvZv(Double_t x[3]) const { x[0] = Xv(); x[1] = Yv(); x[2] = Zv(); return kTRUE; }
126 Double_t Chi2perNDF() const { return fChi2perNDF; }
127 UShort_t GetTPCNcls() const { return fTPCClusterMap.CountBits();}
129 virtual Double_t M() const { return M(GetMostProbablePID()); }
130 Double_t M(AODTrkPID_t pid) const;
131 virtual Double_t E() const { return E(GetMostProbablePID()); }
132 Double_t E(AODTrkPID_t pid) const;
133 Double_t E(Double_t m) const { return TMath::Sqrt(P()*P() + m*m); }
134 virtual Double_t Y() const { return Y(GetMostProbablePID()); }
135 Double_t Y(AODTrkPID_t pid) const;
136 Double_t Y(Double_t m) const;
138 virtual Double_t Eta() const { return -TMath::Log(TMath::Tan(0.5 * fMomentum[2])); }
140 virtual Short_t Charge() const {return fCharge; }
142 virtual Bool_t PropagateToDCA(const AliVVertex *vtx,
143 Double_t b, Double_t maxd, Double_t dz[2], Double_t covar[3]);
146 virtual const Double_t *PID() const { return fPID; }
147 AODTrkPID_t GetMostProbablePID() const;
148 void ConvertAliPIDtoAODPID();
149 void SetDetPID(AliAODPid *aodpid) {fDetPid = aodpid;}
151 template <class T> void GetPID(T *pid) const {
152 for(Int_t i=0; i<10; ++i) pid[i]=fPID[i];}
154 template <class T> void SetPID(const T *pid) {
155 if(pid) for(Int_t i=0; i<10; ++i) fPID[i]=pid[i];
156 else {for(Int_t i=0; i<10; fPID[i++]=0.) ; fPID[AliAODTrack::kUnknown]=1.;}}
158 Bool_t IsOn(Int_t mask) const {return (fFlags&mask)>0;}
159 ULong_t GetStatus() const { return GetFlags(); }
160 ULong_t GetFlags() const { return fFlags; }
162 Int_t GetID() const { return (Int_t)fID; }
163 Int_t GetLabel() const { return fLabel; }
164 Char_t GetType() const { return fType;}
165 Bool_t IsPrimaryCandidate() const;
166 Bool_t GetUsedForVtxFit() const { return TestBit(kUsedForVtxFit); }
167 Bool_t GetUsedForPrimVtxFit() const { return TestBit(kUsedForPrimVtxFit); }
169 Bool_t IsHybridGlobalConstrainedGlobal() const { return TestBit(kIsHybridGCG); }
170 Bool_t IsHybridTPCConstrainedGlobal() const { return TestBit(kIsHybridTPCCG); }
171 Bool_t IsTPCOnly() const { return IsTPCConstrained(); } // obsolete bad naming
172 Bool_t IsTPCConstrained() const { return TestBit(kIsTPCConstrained); }
173 Bool_t IsGlobalConstrained() const { return TestBit(kIsGlobalConstrained); }
175 Int_t GetTOFBunchCrossing(Double_t b=0) const;
177 template <class T> void GetP(T *p) const {
178 p[0]=fMomentum[0]; p[1]=fMomentum[1]; p[2]=fMomentum[2];}
180 // template <class T> void GetPxPyPz(T *p) const {
181 // p[0] = Px(); p[1] = Py(); p[2] = Pz();}
182 Bool_t GetPxPyPz(Double_t *p) const;
184 template <class T> Bool_t GetPosition(T *x) const {
185 x[0]=fPosition[0]; x[1]=fPosition[1]; x[2]=fPosition[2];
186 return TestBit(kIsDCA);}
188 template <class T> void SetCovMatrix(const T *covMatrix) {
189 if(!fCovMatrix) fCovMatrix=new AliAODRedCov<6>();
190 fCovMatrix->SetCovMatrix(covMatrix);}
192 template <class T> Bool_t GetCovMatrix(T *covMatrix) const {
193 if(!fCovMatrix) return kFALSE;
194 fCovMatrix->GetCovMatrix(covMatrix); return kTRUE;}
196 Bool_t GetXYZ(Double_t *p) const {
197 return GetPosition(p); }
199 Bool_t GetCovarianceXYZPxPyPz(Double_t cv[21]) const {
200 return GetCovMatrix(cv);}
202 void RemoveCovMatrix() {delete fCovMatrix; fCovMatrix=NULL;}
204 Double_t XAtDCA() const { return fPositionAtDCA[0]; }
205 Double_t YAtDCA() const { return fPositionAtDCA[1]; }
206 Double_t ZAtDCA() const {
207 if (IsMuonTrack()) return fPosition[2];
208 else if (TestBit(kIsDCA)) return fPosition[1];
210 Bool_t XYZAtDCA(Double_t x[3]) const { x[0] = XAtDCA(); x[1] = YAtDCA(); x[2] = ZAtDCA(); return kTRUE; }
212 Double_t DCA() const {
213 if (IsMuonTrack()) return TMath::Sqrt(XAtDCA()*XAtDCA() + YAtDCA()*YAtDCA());
214 else if (TestBit(kIsDCA)) return fPosition[0];
217 Double_t PxAtDCA() const { return fMomentumAtDCA[0]; }
218 Double_t PyAtDCA() const { return fMomentumAtDCA[1]; }
219 Double_t PzAtDCA() const { return fMomentumAtDCA[2]; }
220 Double_t PAtDCA() const { return TMath::Sqrt(PxAtDCA()*PxAtDCA() + PyAtDCA()*PyAtDCA() + PzAtDCA()*PzAtDCA()); }
221 Bool_t PxPyPzAtDCA(Double_t p[3]) const { p[0] = PxAtDCA(); p[1] = PyAtDCA(); p[2] = PzAtDCA(); return kTRUE; }
223 Double_t GetRAtAbsorberEnd() const { return fRAtAbsorberEnd; }
225 UChar_t GetITSClusterMap() const { return (UChar_t)(fITSMuonClusterMap&0xff); }
226 Int_t GetITSNcls() const;
227 Bool_t HasPointOnITSLayer(Int_t i) const { return TESTBIT(GetITSClusterMap(),i); }
228 UShort_t GetHitsPatternInTrigCh() const { return (UShort_t)((fITSMuonClusterMap&0xff00)>>8); }
229 UInt_t GetMUONClusterMap() const { return (fITSMuonClusterMap&0x3ff0000)>>16; }
230 UInt_t GetITSMUONClusterMap() const { return fITSMuonClusterMap; }
232 Bool_t TestFilterBit(UInt_t filterBit) const {return (Bool_t) ((filterBit & fFilterMap) != 0);}
233 Bool_t TestFilterMask(UInt_t filterMask) const {return (Bool_t) ((filterMask & fFilterMap) == filterMask);}
234 void SetFilterMap(UInt_t i){fFilterMap = i;}
235 UInt_t GetFilterMap() const {return fFilterMap;}
237 const TBits& GetTPCClusterMap() const {return fTPCClusterMap;}
238 Float_t GetTPCClusterInfo(Int_t nNeighbours=3, Int_t type=0, Int_t row0=0, Int_t row1=159) const;
240 const TBits& GetTPCSharedMap() const {return fTPCSharedMap;}
241 void SetTPCClusterMap(const TBits amap) {fTPCClusterMap = amap;}
242 void SetTPCSharedMap(const TBits amap) {fTPCSharedMap = amap;}
243 void SetTPCPointsF(UShort_t findable){fTPCnclsF = findable;}
245 UShort_t GetTPCNclsF() const { return fTPCnclsF;}
247 // Calorimeter Cluster
248 Int_t GetEMCALcluster() const {return fCaloIndex;}
249 void SetEMCALcluster(Int_t index) {fCaloIndex=index;}
250 Bool_t IsEMCAL() const {return fFlags&kEMCALmatch;}
252 Int_t GetPHOScluster() const {return fCaloIndex;}
253 void SetPHOScluster(Int_t index) {fCaloIndex=index;}
254 Bool_t IsPHOS() const {return fFlags&kPHOSmatch;}
256 //pid signal interface
257 Double_t GetITSsignal() const { return fDetPid?fDetPid->GetITSsignal():0.; }
258 Double_t GetTPCsignal() const { return fDetPid?fDetPid->GetTPCsignal():0.; }
259 UShort_t GetTPCsignalN() const { return fDetPid?fDetPid->GetTPCsignalN():0; }
260 Double_t GetTPCmomentum() const { return fDetPid?fDetPid->GetTPCmomentum():0.; }
261 Double_t GetTOFsignal() const { return fDetPid?fDetPid->GetTOFsignal():0.; }
262 Double_t GetHMPIDsignal() const { return fDetPid?fDetPid->GetHMPIDsignal():0.; }
264 void GetIntegratedTimes(Double_t *times) const {if (fDetPid) fDetPid->GetIntegratedTimes(times); }
265 Double_t GetTRDslice(Int_t plane, Int_t slice) const;
266 Double_t GetTRDmomentum(Int_t plane, Double_t */*sp*/=0x0) const;
267 UChar_t GetTRDncls(Int_t layer = -1) const;
268 UChar_t GetTRDntrackletsPID() const;
269 void GetHMPIDpid(Double_t *p) const { if (fDetPid) fDetPid->GetHMPIDprobs(p); }
272 AliAODPid *GetDetPid() const { return fDetPid; }
273 AliAODVertex *GetProdVertex() const { return (AliAODVertex*)fProdVertex.GetObject(); }
276 void Print(const Option_t *opt = "") const;
279 void SetFlags(ULong_t flags) { fFlags = flags; }
280 void SetStatus(ULong_t flags) { fFlags|=flags; }
281 void ResetStatus(ULong_t flags) { fFlags&=~flags; }
283 void SetID(Short_t id) { fID = id; }
284 void SetLabel(Int_t label) { fLabel = label; }
286 template <class T> void SetPosition(const T *x, Bool_t isDCA = kFALSE);
287 void SetDCA(Double_t d, Double_t z);
288 void SetUsedForVtxFit(Bool_t used = kTRUE) { used ? SetBit(kUsedForVtxFit) : ResetBit(kUsedForVtxFit); }
289 void SetUsedForPrimVtxFit(Bool_t used = kTRUE) { used ? SetBit(kUsedForPrimVtxFit) : ResetBit(kUsedForPrimVtxFit); }
291 void SetIsTPCOnly(Bool_t b = kTRUE) { SetIsTPCConstrained(b); }// obsolete bad naming
293 void SetIsTPCConstrained(Bool_t b = kTRUE) { b ? SetBit(kIsTPCConstrained) : ResetBit(kIsTPCConstrained); }
294 void SetIsHybridTPCConstrainedGlobal(Bool_t hybrid = kTRUE) { hybrid ? SetBit(kIsHybridTPCCG) : ResetBit(kIsHybridTPCCG); }
296 void SetIsGlobalConstrained(Bool_t b = kTRUE) { b ? SetBit(kIsGlobalConstrained) : ResetBit(kIsGlobalConstrained); }
297 void SetIsHybridGlobalConstrainedGlobal(Bool_t hybrid = kTRUE) { hybrid ? SetBit(kIsHybridGCG) : ResetBit(kIsHybridGCG); }
301 void SetOneOverPt(Double_t oneOverPt) { fMomentum[0] = 1. / oneOverPt; }
302 void SetPt(Double_t pt) { fMomentum[0] = pt; };
303 void SetPhi(Double_t phi) { fMomentum[1] = phi; }
304 void SetTheta(Double_t theta) { fMomentum[2] = theta; }
305 template <class T> void SetP(const T *p, Bool_t cartesian = kTRUE);
306 void SetP() {fMomentum[0]=fMomentum[1]=fMomentum[2]=-999.;}
308 void SetXYAtDCA(Double_t x, Double_t y) {fPositionAtDCA[0] = x; fPositionAtDCA[1] = y;}
309 void SetPxPyPzAtDCA(Double_t pX, Double_t pY, Double_t pZ) {fMomentumAtDCA[0] = pX; fMomentumAtDCA[1] = pY; fMomentumAtDCA[2] = pZ;}
311 void SetRAtAbsorberEnd(Double_t r) { fRAtAbsorberEnd = r; }
313 void SetCharge(Short_t q) { fCharge = q; }
314 void SetChi2perNDF(Double_t chi2perNDF) { fChi2perNDF = chi2perNDF; }
316 void SetITSClusterMap(UChar_t itsClusMap) { fITSMuonClusterMap = (fITSMuonClusterMap&0xffffff00)|(((UInt_t)itsClusMap)&0xff); }
317 void SetHitsPatternInTrigCh(UShort_t hitsPatternInTrigCh) { fITSMuonClusterMap = (fITSMuonClusterMap&0xffff00ff)|((((UInt_t)hitsPatternInTrigCh)&0xff)<<8); }
318 void SetMuonClusterMap(UInt_t muonClusMap) { fITSMuonClusterMap = (fITSMuonClusterMap&0xfc00ffff)|((muonClusMap&0x3ff)<<16); }
319 void SetITSMuonClusterMap(UInt_t itsMuonClusMap) { fITSMuonClusterMap = itsMuonClusMap; }
321 Int_t GetMatchTrigger() const {return fITSMuonClusterMap>>30;}
322 // 0 Muon track does not match trigger
323 // 1 Muon track match but does not pass pt cut
324 // 2 Muon track match Low pt cut
325 // 3 Muon track match High pt cut
326 void SetMatchTrigger(Int_t MatchTrigger);
327 Bool_t MatchTrigger() const { return (GetMatchTrigger()>0); } // Muon track matches trigger track
328 Bool_t MatchTriggerLowPt() const { return (GetMatchTrigger()>1); } // Muon track matches trigger track and passes Low pt cut
329 Bool_t MatchTriggerHighPt() const { return (GetMatchTrigger()>2); } // Muon track matches trigger track and passes High pt cut
330 Bool_t MatchTriggerDigits() const; // Muon track matches trigger digits
331 Double_t GetChi2MatchTrigger() const { return fChi2MatchTrigger;}
332 void SetChi2MatchTrigger(Double_t Chi2MatchTrigger) {fChi2MatchTrigger = Chi2MatchTrigger; }
333 Bool_t HitsMuonChamber(Int_t MuonChamber, Int_t cathode = -1) const; // Check if track hits Muon chambers
334 Bool_t IsMuonTrack() const { return (GetMUONClusterMap()>0) ? kTRUE : kFALSE; }
336 void Connected(Bool_t flag) {flag ? SETBIT(fITSMuonClusterMap,26) : CLRBIT(fITSMuonClusterMap,26);}
337 Bool_t IsConnected() const {return TESTBIT(fITSMuonClusterMap,26);}
339 void SetProdVertex(TObject *vertex) { fProdVertex = vertex; }
340 void SetType(AODTrk_t ttype) { fType=ttype; }
345 Int_t PdgCode() const {return 0;}
349 // Momentum & position
350 Double32_t fMomentum[3]; // momemtum stored in pt, phi, theta
351 Double32_t fPosition[3]; // position of first point on track or dca
353 Double32_t fMomentumAtDCA[3]; // momentum (px,py,pz) at DCA
354 Double32_t fPositionAtDCA[2]; // trasverse position (x,y) at DCA
356 Double32_t fRAtAbsorberEnd; // transverse position r at the end of the muon absorber
358 Double32_t fChi2perNDF; // chi2/NDF of momentum fit
359 Double32_t fChi2MatchTrigger; // chi2 of trigger/track matching
360 Double32_t fPID[10]; // [0.,1.,8] pointer to PID object
362 ULong_t fFlags; // reconstruction status flags
363 Int_t fLabel; // track label, points back to MC track
365 UInt_t fITSMuonClusterMap; // map of ITS and muon clusters, one bit per layer
366 // (ITS: bit 1-8, muon trigger: bit 9-16, muon tracker: bit 17-26, muon match trigger: bit 31-32)
367 UInt_t fFilterMap; // filter information, one bit per set of cuts
369 TBits fTPCClusterMap; // Map of clusters, one bit per padrow; 1 if has a cluster on given padrow
370 TBits fTPCSharedMap; // Map of clusters, one bit per padrow; 1 if has a shared cluster on given padrow
371 UShort_t fTPCnclsF; // findable clusters
373 Short_t fID; // unique track ID, points back to the ESD track
375 Char_t fCharge; // particle charge
376 Char_t fType; // Track Type
378 Int_t fCaloIndex; // index of associated EMCAL/PHOS cluster (AliAODCaloCluster)
381 AliAODRedCov<6> *fCovMatrix; // covariance matrix (x, y, z, px, py, pz)
382 AliAODPid *fDetPid; // more detailed or detector specific pid information
383 TRef fProdVertex; // vertex of origin
385 ClassDef(AliAODTrack, 14);
388 inline Bool_t AliAODTrack::IsPrimaryCandidate() const
390 // True of track passes primary particle selection (independent of type)
399 inline Int_t AliAODTrack::GetITSNcls() const
401 // Number of points in ITS
403 for(Int_t i=0;i<6;i++) if(HasPointOnITSLayer(i)) n++;