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 AliVParticle
10 // Author: Markus Oldenburg, CERN
11 //-------------------------------------------------------------------------
15 #include "AliVParticle.h"
16 #include "AliAODVertex.h"
17 #include "AliAODRedCov.h"
18 #include "AliAODPid.h"
20 class AliAODTrack : public AliVParticle {
24 enum AODTrk_t {kUndef = -1,
30 kIsDCA=BIT(14), // set if fPosition is the DCA and not the position of the first point
31 kUsedForVtxFit=BIT(15), // set if this track was used to fit the vertex it is attached to
32 kUsedForPrimVtxFit=BIT(16) // set if this track was used to fit the primary vertex
50 AliAODTrack(Short_t id,
56 Double_t covMatrix[21],
60 AliAODVertex *prodVertex,
62 Bool_t usedForPrimVtxFit,
63 AODTrk_t ttype=kUndef,
66 AliAODTrack(Short_t id,
72 Float_t covMatrix[21],
76 AliAODVertex *prodVertex,
78 Bool_t usedForPrimVtxFit,
79 AODTrk_t ttype=kUndef,
82 virtual ~AliAODTrack();
83 AliAODTrack(const AliAODTrack& trk);
84 AliAODTrack& operator=(const AliAODTrack& trk);
87 virtual Double_t OneOverPt() const { return (fMomentum[0] != 0.) ? 1./fMomentum[0] : -999.; }
88 virtual Double_t Phi() const { return fMomentum[1]; }
89 virtual Double_t Theta() const { return fMomentum[2]; }
91 virtual Double_t Px() const { return fMomentum[0] * TMath::Cos(fMomentum[1]); }
92 virtual Double_t Py() const { return fMomentum[0] * TMath::Sin(fMomentum[1]); }
93 virtual Double_t Pz() const { return fMomentum[0] / TMath::Tan(fMomentum[2]); }
94 virtual Double_t Pt() const { return fMomentum[0]; }
95 virtual Double_t P() const { return TMath::Sqrt(Pt()*Pt()+Pz()*Pz()); }
96 virtual Bool_t PxPyPz(Double_t p[3]) const { p[0] = Px(); p[1] = Py(); p[2] = Pz(); return kTRUE; }
98 virtual Double_t Xv() const { return GetProdVertex() ? GetProdVertex()->GetX() : -999.; }
99 virtual Double_t Yv() const { return GetProdVertex() ? GetProdVertex()->GetY() : -999.; }
100 virtual Double_t Zv() const { return GetProdVertex() ? GetProdVertex()->GetZ() : -999.; }
101 virtual Bool_t XvYvZv(Double_t x[3]) const { x[0] = Xv(); x[1] = Yv(); x[2] = Zv(); return kTRUE; }
103 Double_t Chi2perNDF() const { return fChi2perNDF; }
105 virtual Double_t M() const { return M(GetMostProbablePID()); }
106 Double_t M(AODTrkPID_t pid) const;
107 virtual Double_t E() const { return E(GetMostProbablePID()); }
108 Double_t E(AODTrkPID_t pid) const;
109 Double_t E(Double_t m) const { return TMath::Sqrt(P()*P() + m*m); }
110 virtual Double_t Y() const { return Y(GetMostProbablePID()); }
111 Double_t Y(AODTrkPID_t pid) const;
112 Double_t Y(Double_t m) const;
114 virtual Double_t Eta() const { return -TMath::Log(TMath::Tan(0.5 * fMomentum[2])); }
116 virtual Short_t Charge() const {return fCharge; }
119 virtual const Double_t *PID() const { return fPID; }
120 AODTrkPID_t GetMostProbablePID() const;
121 void ConvertAliPIDtoAODPID();
122 void SetDetPID(AliAODPid *aodpid) {fDetPid = aodpid;}
124 template <class T> void GetPID(T *pid) const {
125 for(Int_t i=0; i<10; ++i) pid[i]=fPID[i];}
127 template <class T> void SetPID(const T *pid) {
128 if(pid) for(Int_t i=0; i<10; ++i) fPID[i]=pid[i];
129 else {for(Int_t i=0; i<10; fPID[i++]=0.); fPID[AliAODTrack::kUnknown]=1.;}}
131 Bool_t IsOn(Int_t mask) const {return (fFlags&mask)>0;}
132 ULong_t GetStatus() const { return GetFlags(); }
133 ULong_t GetFlags() const { return fFlags; }
135 Short_t GetID() const { return fID; }
136 Int_t GetLabel() const { return fLabel; }
137 Char_t GetType() const { return fType;}
138 Bool_t GetUsedForVtxFit() const { return TestBit(kUsedForVtxFit); }
139 Bool_t GetUsedForPrimVtxFit() const { return TestBit(kUsedForPrimVtxFit); }
141 template <class T> void GetP(T *p) const {
142 p[0]=fMomentum[0]; p[1]=fMomentum[1]; p[2]=fMomentum[2];}
144 template <class T> void GetPxPyPz(T *p) const {
145 p[0] = Px(); p[1] = Py(); p[2] = Pz();}
147 template <class T> Bool_t GetPosition(T *x) const {
148 x[0]=fPosition[0]; x[1]=fPosition[1]; x[2]=fPosition[2];
149 return TestBit(kIsDCA);}
151 template <class T> void SetCovMatrix(const T *covMatrix) {
152 if(!fCovMatrix) fCovMatrix=new AliAODRedCov<6>();
153 fCovMatrix->SetCovMatrix(covMatrix);}
155 template <class T> Bool_t GetCovMatrix(T *covMatrix) const {
156 if(!fCovMatrix) return kFALSE;
157 fCovMatrix->GetCovMatrix(covMatrix); return kTRUE;}
159 void RemoveCovMatrix() {delete fCovMatrix; fCovMatrix=NULL;}
161 Double_t XAtDCA() const { return fPositionAtDCA[0]; }
162 Double_t YAtDCA() const { return fPositionAtDCA[1]; }
163 Double_t ZAtDCA() const {
164 if (IsMuonTrack()) return fPosition[2];
165 else if (TestBit(kIsDCA)) return fPosition[1];
167 Bool_t XYZAtDCA(Double_t x[3]) const { x[0] = XAtDCA(); x[1] = YAtDCA(); x[2] = ZAtDCA(); return kTRUE; }
169 Double_t DCA() const {
170 if (IsMuonTrack()) return TMath::Sqrt(XAtDCA()*XAtDCA() + YAtDCA()*YAtDCA());
171 else if (TestBit(kIsDCA)) return fPosition[0];
174 Double_t PxAtDCA() const { return fMomentumAtDCA[0]; }
175 Double_t PyAtDCA() const { return fMomentumAtDCA[1]; }
176 Double_t PzAtDCA() const { return fMomentumAtDCA[2]; }
177 Double_t PAtDCA() const { return TMath::Sqrt(PxAtDCA()*PxAtDCA() + PyAtDCA()*PyAtDCA() + PzAtDCA()*PzAtDCA()); }
178 Bool_t PxPyPzAtDCA(Double_t p[3]) const { p[0] = PxAtDCA(); p[1] = PyAtDCA(); p[2] = PzAtDCA(); return kTRUE; }
180 UChar_t GetITSClusterMap() const { return (UChar_t)(fITSMuonClusterMap&0xff); }
181 UShort_t GetHitsPatternInTrigCh() const { return (UShort_t)((fITSMuonClusterMap&0xff00)>>8); }
182 UInt_t GetMUONClusterMap() const { return (fITSMuonClusterMap&0x3ff0000)>>16; }
183 UInt_t GetITSMUONClusterMap() const { return fITSMuonClusterMap; }
185 Bool_t TestFilterBit(UInt_t filterBit) const {return (Bool_t) ((filterBit & fFilterMap) != 0);}
187 AliAODPid *GetDetPid() const { return fDetPid; }
188 AliAODVertex *GetProdVertex() const { return (AliAODVertex*)fProdVertex.GetObject(); }
191 void Print(const Option_t *opt = "") const;
194 void SetFlags(ULong_t flags) { fFlags = flags; }
195 void SetStatus(ULong_t flags) { fFlags|=flags; }
196 void ResetStatus(ULong_t flags) { fFlags&=~flags; }
198 void SetID(Short_t id) { fID = id; }
199 void SetLabel(Int_t label) { fLabel = label; }
201 template <class T> void SetPosition(const T *x, Bool_t isDCA = kFALSE);
202 void SetDCA(Double_t d, Double_t z);
203 void SetUsedForVtxFit(Bool_t used = kTRUE) { used ? SetBit(kUsedForVtxFit) : ResetBit(kUsedForVtxFit); }
204 void SetUsedForPrimVtxFit(Bool_t used = kTRUE) { used ? SetBit(kUsedForPrimVtxFit) : ResetBit(kUsedForPrimVtxFit); }
206 void SetOneOverPt(Double_t oneOverPt) { fMomentum[0] = oneOverPt; }
207 void SetPt(Double_t pt) { fMomentum[0] = pt; };
208 void SetPhi(Double_t phi) { fMomentum[1] = phi; }
209 void SetTheta(Double_t theta) { fMomentum[2] = theta; }
210 template <class T> void SetP(const T *p, Bool_t cartesian = kTRUE);
211 void SetP() {fMomentum[0]=fMomentum[1]=fMomentum[2]=-999.;}
213 void SetXYAtDCA(Double_t x, Double_t y) {fPositionAtDCA[0] = x; fPositionAtDCA[1] = y;}
214 void SetPxPyPzAtDCA(Double_t pX, Double_t pY, Double_t pZ) {fMomentumAtDCA[0] = pX; fMomentumAtDCA[1] = pY; fMomentumAtDCA[2] = pZ;}
216 void SetCharge(Short_t q) { fCharge = q; }
217 void SetChi2perNDF(Double_t chi2perNDF) { fChi2perNDF = chi2perNDF; }
219 void SetITSClusterMap(UChar_t itsClusMap) { fITSMuonClusterMap = (fITSMuonClusterMap&0xffffff00)|(((UInt_t)itsClusMap)&0xff); }
220 void SetHitsPatternInTrigCh(UShort_t hitsPatternInTrigCh) { fITSMuonClusterMap = (fITSMuonClusterMap&0xffff00ff)|((((UInt_t)hitsPatternInTrigCh)&0xff)<<8); }
221 void SetMuonClusterMap(UInt_t muonClusMap) { fITSMuonClusterMap = (fITSMuonClusterMap&0xfc00ffff)|((muonClusMap&0x3ff)<<16); }
222 void SetITSMuonClusterMap(UInt_t itsMuonClusMap) { fITSMuonClusterMap = itsMuonClusMap; }
224 Int_t GetMatchTrigger() const {return fITSMuonClusterMap>>30;}
225 // 0 Muon track does not match trigger
226 // 1 Muon track match but does not pass pt cut
227 // 2 Muon track match Low pt cut
228 // 3 Muon track match High pt cut
229 void SetMatchTrigger(Int_t MatchTrigger);
230 Int_t MatchTrigger() const { return (GetMatchTrigger()>0)?1:0; } // Muon track matches trigger track
231 Int_t MatchTriggerAnyPt() const { return (GetMatchTrigger()>0)?1:0; } // Muon track matches trigger track
232 Int_t MatchTriggerLowPt() const { return (GetMatchTrigger()>1)?1:0; } // Muon track matches trigger track and passes Low pt cut
233 Int_t MatchTriggerHighPt() const { return (GetMatchTrigger()>2)?1:0; } // Muon track matches trigger track and passes High pt cut
234 Double_t GetChi2MatchTrigger() const { return fChi2MatchTrigger;}
235 void SetChi2MatchTrigger(Double_t Chi2MatchTrigger) {fChi2MatchTrigger = Chi2MatchTrigger; }
236 Int_t HitsMT(Int_t istation, Int_t iplane, Char_t *cathode=0); // Check if track hits Muon chambers
237 Int_t HitsMuonChamber(Int_t MuonChamber); // Check if track hits Muon chambers
238 Bool_t IsMuonTrack() const { return (GetMUONClusterMap()>0) ? kTRUE : kFALSE; }
240 void SetProdVertex(TObject *vertex) { fProdVertex = vertex; }
241 void SetType(AODTrk_t ttype) { fType=ttype; }
244 Bool_t PropagateTo(Double_t xk, Double_t b);
249 // Momentum & position
250 Double32_t fMomentum[3]; // momemtum stored in pt, phi, theta
251 Double32_t fPosition[3]; // position of first point on track or dca
253 Double32_t fMomentumAtDCA[3]; // momentum (px,py,pz) at DCA
254 Double32_t fPositionAtDCA[2]; // trasverse position (x,y) at DCA
256 Double32_t fChi2perNDF; // chi2/NDF of mometum fit
257 Double32_t fChi2MatchTrigger; // chi2 of trigger/track matching
258 Double32_t fPID[10]; // [0.,1.,8] pointer to PID object
260 ULong_t fFlags; // reconstruction status flags
261 Int_t fLabel; // track label, points back to MC track
263 UInt_t fITSMuonClusterMap; // map of ITS and muon clusters, one bit per layer
264 // (ITS: bit 1-8, muon trigger: bit 9-16, muon tracker: bit 17-26, muon match trigger: bit 31-32)
265 UInt_t fFilterMap; // filter information, one bit per set of cuts
267 Short_t fID; // unique track ID, points back to the ESD track
269 Char_t fCharge; // particle charge
270 Char_t fType; // Track Type
272 AliAODRedCov<6> *fCovMatrix; // covariance matrix (x, y, z, px, py, pz)
273 AliAODPid *fDetPid; // more detailed or detector specific pid information
274 TRef fProdVertex; // vertex of origin
276 ClassDef(AliAODTrack,8);