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1 | #ifndef AliAODTrack_H | |
2 | #define AliAODTrack_H | |
3 | /* Copyright(c) 1998-2007, ALICE Experiment at CERN, All rights reserved. * | |
4 | * See cxx source for full Copyright notice */ | |
5 | ||
6 | /* $Id$ */ | |
7 | ||
8 | //------------------------------------------------------------------------- | |
9 | // AOD track base class | |
10 | // Author: Markus Oldenburg, CERN | |
11 | //------------------------------------------------------------------------- | |
12 | ||
13 | #include <TRef.h> | |
14 | ||
15 | #include "AliVirtualParticle.h" | |
16 | #include "AliAODVertex.h" | |
17 | #include "AliAODRedCov.h" | |
18 | ||
19 | class AliAODTrack : public AliVirtualParticle { | |
20 | ||
21 | public: | |
22 | ||
23 | enum AODTrk_t {kUndef=-1, kPrimary, kSecondary, kOrphan}; | |
24 | ||
25 | enum AODTrkBits_t { | |
26 | kIsDCA=BIT(14) // set if fPosition is the DCA and not the position of the first point | |
27 | }; | |
28 | ||
29 | enum AODTrkPID_t { | |
30 | kUnknown=0, kElectron, kMuon, kPion, kProton, kDeuton, kTriton, kAlpha, kOther}; | |
31 | ||
32 | AliAODTrack(); | |
33 | AliAODTrack(Int_t id, | |
34 | Int_t label, | |
35 | Double_t p[3], | |
36 | Bool_t cartesian, | |
37 | Double_t x[3], | |
38 | Bool_t dca, | |
39 | Double_t covMatrix[21], | |
40 | Short_t q, | |
41 | UChar_t itsClusMap, | |
42 | Double_t pid[10], | |
43 | AliAODVertex *prodVertex, | |
44 | AODTrk_t ttype=kUndef); | |
45 | ||
46 | AliAODTrack(Int_t id, | |
47 | Int_t label, | |
48 | Float_t p[3], | |
49 | Bool_t cartesian, | |
50 | Float_t x[3], | |
51 | Bool_t dca, | |
52 | Float_t covMatrix[21], | |
53 | Short_t q, | |
54 | UChar_t itsClusMap, | |
55 | Float_t pid[10], | |
56 | AliAODVertex *prodVertex, | |
57 | AODTrk_t ttype=kUndef); | |
58 | ||
59 | virtual ~AliAODTrack(); | |
60 | AliAODTrack(const AliAODTrack& trk); | |
61 | AliAODTrack& operator=(const AliAODTrack& trk); | |
62 | ||
63 | // kinematics | |
64 | virtual Double_t OneOverPt() const { return fMomentum[0]; } | |
65 | virtual Double_t Phi() const { return fMomentum[1]; } | |
66 | virtual Double_t Theta() const { return fMomentum[2]; } | |
67 | ||
68 | virtual Double_t Px() const { return TMath::Cos(fMomentum[1])/fMomentum[0]; } | |
69 | virtual Double_t Py() const { return TMath::Sin(fMomentum[1])/fMomentum[0]; } | |
70 | virtual Double_t Pz() const { return 1./(fMomentum[0] * TMath::Tan(fMomentum[2])); } | |
71 | virtual Double_t Pt() const { return 1./fMomentum[0]; } | |
72 | virtual Double_t P() const { return TMath::Sqrt(Pt()*Pt()+Pz()*Pz()); } | |
73 | ||
74 | Double_t Chi2() const { return fChi2; } | |
75 | ||
76 | virtual Double_t E() const { return -999.; } | |
77 | // make a connection to the PID object, here!!! | |
78 | virtual Double_t M() const { return -999.; } | |
79 | ||
80 | virtual Double_t Eta() const { return -TMath::Log(TMath::Tan(0.5 * fMomentum[2])); } | |
81 | // make a connection to the PID object, here!!! | |
82 | virtual Double_t Y() const { return -999.; } | |
83 | ||
84 | virtual Short_t Charge() const {return fCharge; } | |
85 | ||
86 | // PID | |
87 | virtual const Double_t *PID() const { return fPID; } | |
88 | ||
89 | template <class T> void GetPID(T *pid) const { | |
90 | for(Int_t i=0; i<10; ++i) pid[i]=fPID[i];} | |
91 | ||
92 | template <class T> void SetPID(const T *pid) { | |
93 | if(pid) for(Int_t i=0; i<10; ++i) fPID[i]=pid[i]; | |
94 | else {for(Int_t i=1; i<10; fPID[i++]=0); fPID[0]=1.;}} | |
95 | ||
96 | Int_t GetID() const { return fID; } | |
97 | Int_t GetLabel() const { return fLabel; } | |
98 | Char_t GetType() const { return fType;} | |
99 | ||
100 | template <class T> void GetP(T *p) const { | |
101 | p[0]=fMomentum[0]; p[1]=fMomentum[1]; p[2]=fMomentum[2];} | |
102 | ||
103 | template <class T> void GetPxPyPz(T *p) const { | |
104 | p[0] = Px(); p[1] = Py(); p[2] = Pz();} | |
105 | ||
106 | template <class T> Bool_t GetPosition(T *x) const { | |
107 | x[0]=fPosition[0]; x[1]=fPosition[1]; x[2]=fPosition[2]; | |
108 | return TestBit(kIsDCA);} | |
109 | ||
110 | template <class T> void SetCovMatrix(const T *covMatrix) { | |
111 | if(!fCovMatrix) fCovMatrix=new AliAODRedCov<6>(); | |
112 | fCovMatrix->SetCovMatrix(covMatrix);} | |
113 | ||
114 | template <class T> Bool_t GetCovMatrix(T *covMatrix) const { | |
115 | if(!fCovMatrix) return kFALSE; | |
116 | fCovMatrix->GetCovMatrix(covMatrix); return kTRUE;} | |
117 | ||
118 | void RemoveCovMatrix() {delete fCovMatrix; fCovMatrix=NULL;} | |
119 | ||
120 | UChar_t GetITSClusterMap() const { return fITSClusterMap; } | |
121 | ||
122 | AliAODVertex *GetProdVertex() const { return (AliAODVertex*)fProdVertex.GetObject(); } | |
123 | ||
124 | ||
125 | void Print(const Option_t *opt = "") const; | |
126 | ||
127 | // setters | |
128 | void SetID(Int_t id) { fID = id; } | |
129 | void SetLabel(Int_t label) {fLabel = label; } | |
130 | ||
131 | template <class T> void SetPosition(const T *x, Bool_t isDCA = kFALSE); | |
132 | void SetDCA(Double_t d, Double_t z); | |
133 | ||
134 | void SetOneOverPt(Double_t oneOverPt) { fMomentum[0] = oneOverPt; } | |
135 | void SetPt(Double_t pt) { fMomentum[0] = 1./pt; }; | |
136 | void SetPhi(Double_t phi) { fMomentum[1] = phi; } | |
137 | void SetTheta(Double_t theta) { fMomentum[2] = theta; } | |
138 | template <class T> void SetP(const T *p, Bool_t cartesian = kTRUE); | |
139 | void SetP() {fMomentum[0]=fMomentum[1]=fMomentum[2]=-999.;} | |
140 | ||
141 | void SetCharge(Short_t q) { fCharge = q; } | |
142 | void SetChi2(Double_t chi2) { fChi2 = chi2; } | |
143 | ||
144 | void SetITSClusterMap(UChar_t itsClusMap) { fITSClusterMap = itsClusMap; } | |
145 | ||
146 | void SetProdVertex(TObject *vertex) { fProdVertex = vertex; } | |
147 | ||
148 | // name and title | |
149 | void SetType(AODTrk_t ttype) { fType=ttype; } | |
150 | ||
151 | private : | |
152 | ||
153 | // Momentum & position | |
154 | Double32_t fMomentum[3]; // momemtum stored in 1/pt, phi, theta | |
155 | Double32_t fPosition[3]; // position of first point on track or dca | |
156 | ||
157 | Double32_t fPID[10]; // [0.,1.,8] pointer to PID object | |
158 | Double32_t fChi2; // chi2 of mometum fit | |
159 | ||
160 | Int_t fID; // unique track ID, points back to the ESD track | |
161 | Int_t fLabel; // track label, points back to MC track | |
162 | ||
163 | AliAODRedCov<6> *fCovMatrix; // covariance matrix (x, y, z, px, py, pz) | |
164 | TRef fProdVertex; // vertex of origin | |
165 | ||
166 | Char_t fCharge; // particle charge | |
167 | UChar_t fITSClusterMap; // map of ITS cluster, one bit per layer | |
168 | Char_t fType; // Track Type | |
169 | ||
170 | ||
171 | ClassDef(AliAODTrack,1); | |
172 | }; | |
173 | ||
174 | #endif |