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 kIsTPCOnly=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 kIsHybridITSTPC=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 kIsHybridTPC=BIT(19) // for TPC tracks that have been selected with a combination of cuts involving the ITS, tracks without ITS information are taken from TPC only
57 AliAODTrack(Short_t id,
63 Double_t covMatrix[21],
67 AliAODVertex *prodVertex,
69 Bool_t usedForPrimVtxFit,
70 AODTrk_t ttype=kUndef,
72 Float_t chi2perNDF = -999.);
74 AliAODTrack(Short_t id,
80 Float_t covMatrix[21],
84 AliAODVertex *prodVertex,
86 Bool_t usedForPrimVtxFit,
87 AODTrk_t ttype=kUndef,
89 Float_t chi2perNDF = -999.);
91 virtual ~AliAODTrack();
92 AliAODTrack(const AliAODTrack& trk);
93 AliAODTrack& operator=(const AliAODTrack& trk);
96 virtual Double_t OneOverPt() const { return (fMomentum[0] != 0.) ? 1./fMomentum[0] : -999.; }
97 virtual Double_t Phi() const { return fMomentum[1]; }
98 virtual Double_t Theta() const { return fMomentum[2]; }
100 virtual Double_t Px() const { return fMomentum[0] * TMath::Cos(fMomentum[1]); }
101 virtual Double_t Py() const { return fMomentum[0] * TMath::Sin(fMomentum[1]); }
102 virtual Double_t Pz() const { return fMomentum[0] / TMath::Tan(fMomentum[2]); }
103 virtual Double_t Pt() const { return fMomentum[0]; }
104 virtual Double_t P() const { return TMath::Sqrt(Pt()*Pt()+Pz()*Pz()); }
105 virtual Bool_t PxPyPz(Double_t p[3]) const { p[0] = Px(); p[1] = Py(); p[2] = Pz(); return kTRUE; }
107 virtual Double_t Xv() const { return GetProdVertex() ? GetProdVertex()->GetX() : -999.; }
108 virtual Double_t Yv() const { return GetProdVertex() ? GetProdVertex()->GetY() : -999.; }
109 virtual Double_t Zv() const { return GetProdVertex() ? GetProdVertex()->GetZ() : -999.; }
110 virtual Bool_t XvYvZv(Double_t x[3]) const { x[0] = Xv(); x[1] = Yv(); x[2] = Zv(); return kTRUE; }
112 Double_t Chi2perNDF() const { return fChi2perNDF; }
113 UShort_t GetTPCNcls() const { return fTPCClusterMap.CountBits();}
115 virtual Double_t M() const { return M(GetMostProbablePID()); }
116 Double_t M(AODTrkPID_t pid) const;
117 virtual Double_t E() const { return E(GetMostProbablePID()); }
118 Double_t E(AODTrkPID_t pid) const;
119 Double_t E(Double_t m) const { return TMath::Sqrt(P()*P() + m*m); }
120 virtual Double_t Y() const { return Y(GetMostProbablePID()); }
121 Double_t Y(AODTrkPID_t pid) const;
122 Double_t Y(Double_t m) const;
124 virtual Double_t Eta() const { return -TMath::Log(TMath::Tan(0.5 * fMomentum[2])); }
126 virtual Short_t Charge() const {return fCharge; }
128 virtual Bool_t PropagateToDCA(const AliVVertex *vtx,
129 Double_t b, Double_t maxd, Double_t dz[2], Double_t covar[3]);
132 virtual const Double_t *PID() const { return fPID; }
133 AODTrkPID_t GetMostProbablePID() const;
134 void ConvertAliPIDtoAODPID();
135 void SetDetPID(AliAODPid *aodpid) {fDetPid = aodpid;}
137 template <class T> void GetPID(T *pid) const {
138 for(Int_t i=0; i<10; ++i) pid[i]=fPID[i];}
140 template <class T> void SetPID(const T *pid) {
141 if(pid) for(Int_t i=0; i<10; ++i) fPID[i]=pid[i];
142 else {for(Int_t i=0; i<10; fPID[i++]=0.) ; fPID[AliAODTrack::kUnknown]=1.;}}
144 Bool_t IsOn(Int_t mask) const {return (fFlags&mask)>0;}
145 ULong_t GetStatus() const { return GetFlags(); }
146 ULong_t GetFlags() const { return fFlags; }
148 Int_t GetID() const { return (Int_t)fID; }
149 Int_t GetLabel() const { return fLabel; }
150 Char_t GetType() const { return fType;}
151 Bool_t IsPrimaryCandidate() const;
152 Bool_t GetUsedForVtxFit() const { return TestBit(kUsedForVtxFit); }
153 Bool_t GetUsedForPrimVtxFit() const { return TestBit(kUsedForPrimVtxFit); }
154 Bool_t IsHybridITSTPC() const { return TestBit(kIsHybridITSTPC); }
155 Bool_t IsHybridTPC() const { return TestBit(kIsHybridTPC); }
156 Bool_t IsTPCOnly() const { return TestBit(kIsTPCOnly); }
158 Int_t GetTOFBunchCrossing(Double_t b=0) const;
160 template <class T> void GetP(T *p) const {
161 p[0]=fMomentum[0]; p[1]=fMomentum[1]; p[2]=fMomentum[2];}
163 // template <class T> void GetPxPyPz(T *p) const {
164 // p[0] = Px(); p[1] = Py(); p[2] = Pz();}
165 Bool_t GetPxPyPz(Double_t *p) const;
167 template <class T> Bool_t GetPosition(T *x) const {
168 x[0]=fPosition[0]; x[1]=fPosition[1]; x[2]=fPosition[2];
169 return TestBit(kIsDCA);}
171 template <class T> void SetCovMatrix(const T *covMatrix) {
172 if(!fCovMatrix) fCovMatrix=new AliAODRedCov<6>();
173 fCovMatrix->SetCovMatrix(covMatrix);}
175 template <class T> Bool_t GetCovMatrix(T *covMatrix) const {
176 if(!fCovMatrix) return kFALSE;
177 fCovMatrix->GetCovMatrix(covMatrix); return kTRUE;}
179 Bool_t GetXYZ(Double_t *p) const {
180 return GetPosition(p); }
182 Bool_t GetCovarianceXYZPxPyPz(Double_t cv[21]) const {
183 return GetCovMatrix(cv);}
185 void RemoveCovMatrix() {delete fCovMatrix; fCovMatrix=NULL;}
187 Double_t XAtDCA() const { return fPositionAtDCA[0]; }
188 Double_t YAtDCA() const { return fPositionAtDCA[1]; }
189 Double_t ZAtDCA() const {
190 if (IsMuonTrack()) return fPosition[2];
191 else if (TestBit(kIsDCA)) return fPosition[1];
193 Bool_t XYZAtDCA(Double_t x[3]) const { x[0] = XAtDCA(); x[1] = YAtDCA(); x[2] = ZAtDCA(); return kTRUE; }
195 Double_t DCA() const {
196 if (IsMuonTrack()) return TMath::Sqrt(XAtDCA()*XAtDCA() + YAtDCA()*YAtDCA());
197 else if (TestBit(kIsDCA)) return fPosition[0];
200 Double_t PxAtDCA() const { return fMomentumAtDCA[0]; }
201 Double_t PyAtDCA() const { return fMomentumAtDCA[1]; }
202 Double_t PzAtDCA() const { return fMomentumAtDCA[2]; }
203 Double_t PAtDCA() const { return TMath::Sqrt(PxAtDCA()*PxAtDCA() + PyAtDCA()*PyAtDCA() + PzAtDCA()*PzAtDCA()); }
204 Bool_t PxPyPzAtDCA(Double_t p[3]) const { p[0] = PxAtDCA(); p[1] = PyAtDCA(); p[2] = PzAtDCA(); return kTRUE; }
206 Double_t GetRAtAbsorberEnd() const { return fRAtAbsorberEnd; }
208 UChar_t GetITSClusterMap() const { return (UChar_t)(fITSMuonClusterMap&0xff); }
209 Int_t GetITSNcls() const;
210 Bool_t HasPointOnITSLayer(Int_t i) const { return TESTBIT(GetITSClusterMap(),i); }
211 UShort_t GetHitsPatternInTrigCh() const { return (UShort_t)((fITSMuonClusterMap&0xff00)>>8); }
212 UInt_t GetMUONClusterMap() const { return (fITSMuonClusterMap&0x3ff0000)>>16; }
213 UInt_t GetITSMUONClusterMap() const { return fITSMuonClusterMap; }
215 Bool_t TestFilterBit(UInt_t filterBit) const {return (Bool_t) ((filterBit & fFilterMap) != 0);}
216 Bool_t TestFilterMask(UInt_t filterMask) const {return (Bool_t) ((filterMask & fFilterMap) == filterMask);}
217 void SetFilterMap(UInt_t i){fFilterMap = i;}
218 UInt_t GetFilterMap(){return fFilterMap;}
220 const TBits& GetTPCClusterMap() const {return fTPCClusterMap;}
221 Float_t GetTPCClusterInfo(Int_t nNeighbours=3, Int_t type=0, Int_t row0=0, Int_t row1=159) const;
223 const TBits& GetTPCSharedMap() const {return fTPCSharedMap;}
224 void SetTPCClusterMap(const TBits amap) {fTPCClusterMap = amap;}
225 void SetTPCSharedMap(const TBits amap) {fTPCSharedMap = amap;}
226 void SetTPCPointsF(UShort_t findable){fTPCnclsF = findable;}
228 UShort_t GetTPCNclsF() const { return fTPCnclsF;}
230 //pid signal interface
231 Double_t GetITSsignal() const { return fDetPid?fDetPid->GetITSsignal():0.; }
232 Double_t GetTPCsignal() const { return fDetPid?fDetPid->GetTPCsignal():0.; }
233 UShort_t GetTPCsignalN() const { return fDetPid?fDetPid->GetTPCsignalN():0; }
234 Double_t GetTPCmomentum() const { return fDetPid?fDetPid->GetTPCmomentum():0.; }
235 Double_t GetTOFsignal() const { return fDetPid?fDetPid->GetTOFsignal():0.; }
236 void GetIntegratedTimes(Double_t *times) const {if (fDetPid) fDetPid->GetIntegratedTimes(times); }
237 Double_t GetTRDslice(Int_t plane, Int_t slice) const;
238 Double_t GetTRDmomentum(Int_t plane, Double_t */*sp*/=0x0) const;
239 void GetHMPIDpid(Double_t *p) const { if (fDetPid) fDetPid->GetHMPIDprobs(p); }
242 AliAODPid *GetDetPid() const { return fDetPid; }
243 AliAODVertex *GetProdVertex() const { return (AliAODVertex*)fProdVertex.GetObject(); }
246 void Print(const Option_t *opt = "") const;
249 void SetFlags(ULong_t flags) { fFlags = flags; }
250 void SetStatus(ULong_t flags) { fFlags|=flags; }
251 void ResetStatus(ULong_t flags) { fFlags&=~flags; }
253 void SetID(Short_t id) { fID = id; }
254 void SetLabel(Int_t label) { fLabel = label; }
256 template <class T> void SetPosition(const T *x, Bool_t isDCA = kFALSE);
257 void SetDCA(Double_t d, Double_t z);
258 void SetUsedForVtxFit(Bool_t used = kTRUE) { used ? SetBit(kUsedForVtxFit) : ResetBit(kUsedForVtxFit); }
259 void SetUsedForPrimVtxFit(Bool_t used = kTRUE) { used ? SetBit(kUsedForPrimVtxFit) : ResetBit(kUsedForPrimVtxFit); }
260 void SetIsHybridITSTPC(Bool_t hybrid = kTRUE) { hybrid ? SetBit(kIsHybridITSTPC) : ResetBit(kIsHybridITSTPC); }
261 void SetIsHybridTPC(Bool_t hybrid = kTRUE) { hybrid ? SetBit(kIsHybridTPC) : ResetBit(kIsHybridTPC); }
262 void SetIsTPCOnly(Bool_t b = kTRUE) { b ? SetBit(kIsTPCOnly) : ResetBit(kIsTPCOnly); }
264 void SetOneOverPt(Double_t oneOverPt) { fMomentum[0] = 1. / oneOverPt; }
265 void SetPt(Double_t pt) { fMomentum[0] = pt; };
266 void SetPhi(Double_t phi) { fMomentum[1] = phi; }
267 void SetTheta(Double_t theta) { fMomentum[2] = theta; }
268 template <class T> void SetP(const T *p, Bool_t cartesian = kTRUE);
269 void SetP() {fMomentum[0]=fMomentum[1]=fMomentum[2]=-999.;}
271 void SetXYAtDCA(Double_t x, Double_t y) {fPositionAtDCA[0] = x; fPositionAtDCA[1] = y;}
272 void SetPxPyPzAtDCA(Double_t pX, Double_t pY, Double_t pZ) {fMomentumAtDCA[0] = pX; fMomentumAtDCA[1] = pY; fMomentumAtDCA[2] = pZ;}
274 void SetRAtAbsorberEnd(Double_t r) { fRAtAbsorberEnd = r; }
276 void SetCharge(Short_t q) { fCharge = q; }
277 void SetChi2perNDF(Double_t chi2perNDF) { fChi2perNDF = chi2perNDF; }
279 void SetITSClusterMap(UChar_t itsClusMap) { fITSMuonClusterMap = (fITSMuonClusterMap&0xffffff00)|(((UInt_t)itsClusMap)&0xff); }
280 void SetHitsPatternInTrigCh(UShort_t hitsPatternInTrigCh) { fITSMuonClusterMap = (fITSMuonClusterMap&0xffff00ff)|((((UInt_t)hitsPatternInTrigCh)&0xff)<<8); }
281 void SetMuonClusterMap(UInt_t muonClusMap) { fITSMuonClusterMap = (fITSMuonClusterMap&0xfc00ffff)|((muonClusMap&0x3ff)<<16); }
282 void SetITSMuonClusterMap(UInt_t itsMuonClusMap) { fITSMuonClusterMap = itsMuonClusMap; }
284 Int_t GetMatchTrigger() const {return fITSMuonClusterMap>>30;}
285 // 0 Muon track does not match trigger
286 // 1 Muon track match but does not pass pt cut
287 // 2 Muon track match Low pt cut
288 // 3 Muon track match High pt cut
289 void SetMatchTrigger(Int_t MatchTrigger);
290 Bool_t MatchTrigger() const { return (GetMatchTrigger()>0); } // Muon track matches trigger track
291 Bool_t MatchTriggerLowPt() const { return (GetMatchTrigger()>1); } // Muon track matches trigger track and passes Low pt cut
292 Bool_t MatchTriggerHighPt() const { return (GetMatchTrigger()>2); } // Muon track matches trigger track and passes High pt cut
293 Bool_t MatchTriggerDigits() const; // Muon track matches trigger digits
294 Double_t GetChi2MatchTrigger() const { return fChi2MatchTrigger;}
295 void SetChi2MatchTrigger(Double_t Chi2MatchTrigger) {fChi2MatchTrigger = Chi2MatchTrigger; }
296 Bool_t HitsMuonChamber(Int_t MuonChamber, Int_t cathode = -1) const; // Check if track hits Muon chambers
297 Bool_t IsMuonTrack() const { return (GetMUONClusterMap()>0) ? kTRUE : kFALSE; }
299 void Connected(Bool_t flag) {flag ? SETBIT(fITSMuonClusterMap,26) : CLRBIT(fITSMuonClusterMap,26);}
300 Bool_t IsConnected() const {return TESTBIT(fITSMuonClusterMap,26);}
302 void SetProdVertex(TObject *vertex) { fProdVertex = vertex; }
303 void SetType(AODTrk_t ttype) { fType=ttype; }
308 Int_t PdgCode() const {return 0;}
312 // Momentum & position
313 Double32_t fMomentum[3]; // momemtum stored in pt, phi, theta
314 Double32_t fPosition[3]; // position of first point on track or dca
316 Double32_t fMomentumAtDCA[3]; // momentum (px,py,pz) at DCA
317 Double32_t fPositionAtDCA[2]; // trasverse position (x,y) at DCA
319 Double32_t fRAtAbsorberEnd; // transverse position r at the end of the muon absorber
321 Double32_t fChi2perNDF; // chi2/NDF of momentum fit
322 Double32_t fChi2MatchTrigger; // chi2 of trigger/track matching
323 Double32_t fPID[10]; // [0.,1.,8] pointer to PID object
325 ULong_t fFlags; // reconstruction status flags
326 Int_t fLabel; // track label, points back to MC track
328 UInt_t fITSMuonClusterMap; // map of ITS and muon clusters, one bit per layer
329 // (ITS: bit 1-8, muon trigger: bit 9-16, muon tracker: bit 17-26, muon match trigger: bit 31-32)
330 UInt_t fFilterMap; // filter information, one bit per set of cuts
332 TBits fTPCClusterMap; // Map of clusters, one bit per padrow; 1 if has a cluster on given padrow
333 TBits fTPCSharedMap; // Map of clusters, one bit per padrow; 1 if has a shared cluster on given padrow
334 UShort_t fTPCnclsF; // findable clusters
336 Short_t fID; // unique track ID, points back to the ESD track
338 Char_t fCharge; // particle charge
339 Char_t fType; // Track Type
341 AliAODRedCov<6> *fCovMatrix; // covariance matrix (x, y, z, px, py, pz)
342 AliAODPid *fDetPid; // more detailed or detector specific pid information
343 TRef fProdVertex; // vertex of origin
345 ClassDef(AliAODTrack, 13);
348 inline Bool_t AliAODTrack::IsPrimaryCandidate() const
350 // True of track passes primary particle selection (independent of type)
359 inline Int_t AliAODTrack::GetITSNcls() const
361 // Number of points in ITS
363 for(Int_t i=0;i<6;i++) if(HasPointOnITSLayer(i)) n++;