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();
123 template <class T> void GetPID(T *pid) const {
124 for(Int_t i=0; i<10; ++i) pid[i]=fPID[i];}
126 template <class T> void SetPID(const T *pid) {
127 if(pid) for(Int_t i=0; i<10; ++i) fPID[i]=pid[i];
128 else {for(Int_t i=0; i<10; fPID[i++]=0.); fPID[AliAODTrack::kUnknown]=1.;}}
130 Short_t GetID() const { return fID; }
131 Int_t GetLabel() const { return fLabel; }
132 Char_t GetType() const { return fType;}
133 Bool_t GetUsedForVtxFit() const { return TestBit(kUsedForVtxFit); }
134 Bool_t GetUsedForPrimVtxFit() const { return TestBit(kUsedForPrimVtxFit); }
136 template <class T> void GetP(T *p) const {
137 p[0]=fMomentum[0]; p[1]=fMomentum[1]; p[2]=fMomentum[2];}
139 template <class T> void GetPxPyPz(T *p) const {
140 p[0] = Px(); p[1] = Py(); p[2] = Pz();}
142 template <class T> Bool_t GetPosition(T *x) const {
143 x[0]=fPosition[0]; x[1]=fPosition[1]; x[2]=fPosition[2];
144 return TestBit(kIsDCA);}
146 template <class T> void SetCovMatrix(const T *covMatrix) {
147 if(!fCovMatrix) fCovMatrix=new AliAODRedCov<6>();
148 fCovMatrix->SetCovMatrix(covMatrix);}
150 template <class T> Bool_t GetCovMatrix(T *covMatrix) const {
151 if(!fCovMatrix) return kFALSE;
152 fCovMatrix->GetCovMatrix(covMatrix); return kTRUE;}
154 void RemoveCovMatrix() {delete fCovMatrix; fCovMatrix=NULL;}
156 UChar_t GetITSClusterMap() const { return (UChar_t)fITSMuonClusterMap; }
157 UInt_t GetMUONClusterMap() const { return fITSMuonClusterMap/65536; }
158 UInt_t GetITSMUONClusterMap() const { return fITSMuonClusterMap; }
159 Bool_t TestFilterBit(UInt_t filterBit) const {return (Bool_t) ((filterBit & fFilterMap) != 0);}
161 AliAODPid *GetDetPid() const { return fDetPid; }
162 AliAODVertex *GetProdVertex() const { return (AliAODVertex*)fProdVertex.GetObject(); }
165 void Print(const Option_t *opt = "") const;
168 void SetID(Short_t id) { fID = id; }
169 void SetLabel(Int_t label) {fLabel = label; }
171 template <class T> void SetPosition(const T *x, Bool_t isDCA = kFALSE);
172 void SetDCA(Double_t d, Double_t z);
173 void SetUsedForVtxFit(Bool_t used = kTRUE) { used ? SetBit(kUsedForVtxFit) : ResetBit(kUsedForVtxFit); }
174 void SetUsedForPrimVtxFit(Bool_t used = kTRUE) { used ? SetBit(kUsedForPrimVtxFit) : ResetBit(kUsedForPrimVtxFit); }
176 void SetOneOverPt(Double_t oneOverPt) { fMomentum[0] = oneOverPt; }
177 void SetPt(Double_t pt) { fMomentum[0] = pt; };
178 void SetPhi(Double_t phi) { fMomentum[1] = phi; }
179 void SetTheta(Double_t theta) { fMomentum[2] = theta; }
180 template <class T> void SetP(const T *p, Bool_t cartesian = kTRUE);
181 void SetP() {fMomentum[0]=fMomentum[1]=fMomentum[2]=-999.;}
183 void SetCharge(Short_t q) { fCharge = q; }
184 void SetChi2perNDF(Double_t chi2perNDF) { fChi2perNDF = chi2perNDF; }
186 void SetITSClusterMap(UChar_t itsClusMap) { fITSMuonClusterMap = (UInt_t)itsClusMap; }
187 void SetMuonClusterMap(UInt_t muonClusMap) { fITSMuonClusterMap = muonClusMap*65536; }
188 void SetITSMuonClusterMap(UInt_t itsMuonClusMap) { fITSMuonClusterMap = itsMuonClusMap; }
190 Int_t GetMatchTrigger() const {return fITSMuonClusterMap>>30;}
191 // 0 Muon track does not match trigger
192 // 1 Muon track match but does not pass pt cut
193 // 2 Muon track match Low pt cut
194 // 3 Muon track match High pt cut
195 void SetMatchTrigger(Int_t MatchTrigger);
196 Int_t MatchTrigger() const { return (GetMatchTrigger()>0)?1:0; } // Muon track matches trigger track
197 Int_t MatchTriggerAnyPt() const { return (GetMatchTrigger()>0)?1:0; } // Muon track matches trigger track
198 Int_t MatchTriggerLowPt() const { return (GetMatchTrigger()>1)?1:0; } // Muon track matches trigger track and passes Low pt cut
199 Int_t MatchTriggerHighPt() const { return (GetMatchTrigger()>2)?1:0; } // Muon track matches trigger track and passes High pt cut
200 Double_t GetChi2MatchTrigger() const { return fChi2MatchTrigger;}
201 void SetChi2MatchTrigger(Double_t Chi2MatchTrigger) {fChi2MatchTrigger = Chi2MatchTrigger;}
202 UShort_t GetHitsPatternInTrigCh() const { return (fITSMuonClusterMap&0xff00)>>8; }
203 void SetHitsPatternInTrigCh(UShort_t hitsPatternInTrigCh);
204 Int_t HitsMT(Int_t istation, Int_t iplane, Char_t *cathode=0); // Check if track hits Muon chambers
205 Int_t HitsMuonChamber(Int_t MuonChamber); // Check if track hits Muon chambers
206 Bool_t IsMuonTrack() const { return fITSMuonClusterMap>>16;} // This scheme has to be checked, still!
208 void SetProdVertex(TObject *vertex) { fProdVertex = vertex; }
209 void SetType(AODTrk_t ttype) { fType=ttype; }
212 Bool_t PropagateTo(Double_t xk, Double_t b);
217 // Momentum & position
218 Double32_t fMomentum[3]; // momemtum stored in pt, phi, theta
219 Double32_t fPosition[3]; // position of first point on track or dca
221 Double32_t fChi2perNDF; // chi2/NDF of mometum fit
222 Double32_t fChi2MatchTrigger; // chi2 of trigger/track matching
223 Double32_t fPID[10]; // [0.,1.,8] pointer to PID object
225 Int_t fLabel; // track label, points back to MC track
227 UInt_t fITSMuonClusterMap; // map of ITS and muon clusters, one bit per layer (ITS: bit 1-8, muon: bit 17-32)
228 UInt_t fFilterMap; // filter information, one bit per set of cuts
230 Short_t fID; // unique track ID, points back to the ESD track
232 Char_t fCharge; // particle charge
233 Char_t fType; // Track Type
235 AliAODRedCov<6> *fCovMatrix; // covariance matrix (x, y, z, px, py, pz)
236 AliAODPid *fDetPid; // more detailed or detector specific pid information
237 TRef fProdVertex; // vertex of origin
239 ClassDef(AliAODTrack,6);