Completely Updated (Mario Sitta)
[u/mrichter/AliRoot.git] / STEER / AliAODTrack.h
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df9db588 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//-------------------------------------------------------------------------
0c5f89fb 9// AOD track implementation of AliVParticle
df9db588 10// Author: Markus Oldenburg, CERN
11//-------------------------------------------------------------------------
12
13#include <TRef.h>
14
9861edc0 15#include "AliVParticle.h"
df9db588 16#include "AliAODVertex.h"
5d62ce04 17#include "AliAODRedCov.h"
7be1db84 18#include "AliAODPid.h"
df9db588 19
9861edc0 20class AliAODTrack : public AliVParticle {
df9db588 21
22 public:
23
1912763f 24 enum AODTrk_t {kUndef = -1,
25 kPrimary,
26 kSecondary,
27 kOrphan};
df9db588 28
29 enum AODTrkBits_t {
dc825b15 30 kIsDCA=BIT(14), // set if fPosition is the DCA and not the position of the first point
1912763f 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
df9db588 33 };
34
4697e4fb 35 enum AODTrkPID_t {
1912763f 36 kElectron = 0,
37 kMuon = 1,
38 kPion = 2,
39 kKaon = 3,
40 kProton = 4,
4697e4fb 41 kDeuteron = 5,
42 kTriton = 6,
43 kHelium3 = 7,
44 kAlpha = 8,
45 kUnknown = 9,
46 kMostProbable = -1
47 };
df9db588 48
49 AliAODTrack();
02153d58 50 AliAODTrack(Short_t id,
df9db588 51 Int_t label,
52 Double_t p[3],
53 Bool_t cartesian,
54 Double_t x[3],
55 Bool_t dca,
56 Double_t covMatrix[21],
57 Short_t q,
58 UChar_t itsClusMap,
59 Double_t pid[10],
60 AliAODVertex *prodVertex,
1912763f 61 Bool_t usedForVtxFit,
dc825b15 62 Bool_t usedForPrimVtxFit,
ec40c484 63 AODTrk_t ttype=kUndef,
64 UInt_t selectInfo=0);
df9db588 65
02153d58 66 AliAODTrack(Short_t id,
df9db588 67 Int_t label,
68 Float_t p[3],
69 Bool_t cartesian,
70 Float_t x[3],
71 Bool_t dca,
72 Float_t covMatrix[21],
73 Short_t q,
74 UChar_t itsClusMap,
75 Float_t pid[10],
76 AliAODVertex *prodVertex,
1912763f 77 Bool_t usedForVtxFit,
dc825b15 78 Bool_t usedForPrimVtxFit,
ec40c484 79 AODTrk_t ttype=kUndef,
80 UInt_t selectInfo=0);
df9db588 81
82 virtual ~AliAODTrack();
83 AliAODTrack(const AliAODTrack& trk);
84 AliAODTrack& operator=(const AliAODTrack& trk);
85
86 // kinematics
16b65f2a 87 virtual Double_t OneOverPt() const { return (fMomentum[0] != 0.) ? 1./fMomentum[0] : -999.; }
df9db588 88 virtual Double_t Phi() const { return fMomentum[1]; }
89 virtual Double_t Theta() const { return fMomentum[2]; }
90
16b65f2a 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]; }
df9db588 95 virtual Double_t P() const { return TMath::Sqrt(Pt()*Pt()+Pz()*Pz()); }
c683ddc2 96 virtual Bool_t PxPyPz(Double_t p[3]) const { p[0] = Px(); p[1] = Py(); p[2] = Pz(); return kTRUE; }
97
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; }
102
1912763f 103 Double_t Chi2perNDF() const { return fChi2perNDF; }
4697e4fb 104
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;
df9db588 113
114 virtual Double_t Eta() const { return -TMath::Log(TMath::Tan(0.5 * fMomentum[2])); }
df9db588 115
116 virtual Short_t Charge() const {return fCharge; }
117
118 // PID
119 virtual const Double_t *PID() const { return fPID; }
4697e4fb 120 AODTrkPID_t GetMostProbablePID() const;
121 void ConvertAliPIDtoAODPID();
df9db588 122
123 template <class T> void GetPID(T *pid) const {
124 for(Int_t i=0; i<10; ++i) pid[i]=fPID[i];}
125
126 template <class T> void SetPID(const T *pid) {
127 if(pid) for(Int_t i=0; i<10; ++i) fPID[i]=pid[i];
186bf2c9 128 else {for(Int_t i=0; i<10; fPID[i++]=0.); fPID[AliAODTrack::kUnknown]=1.;}}
df9db588 129
02153d58 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); }
df9db588 135
136 template <class T> void GetP(T *p) const {
137 p[0]=fMomentum[0]; p[1]=fMomentum[1]; p[2]=fMomentum[2];}
138
139 template <class T> void GetPxPyPz(T *p) const {
140 p[0] = Px(); p[1] = Py(); p[2] = Pz();}
141
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);}
145
146 template <class T> void SetCovMatrix(const T *covMatrix) {
5d62ce04 147 if(!fCovMatrix) fCovMatrix=new AliAODRedCov<6>();
df9db588 148 fCovMatrix->SetCovMatrix(covMatrix);}
149
150 template <class T> Bool_t GetCovMatrix(T *covMatrix) const {
151 if(!fCovMatrix) return kFALSE;
152 fCovMatrix->GetCovMatrix(covMatrix); return kTRUE;}
153
154 void RemoveCovMatrix() {delete fCovMatrix; fCovMatrix=NULL;}
155
1912763f 156 UChar_t GetITSClusterMap() const { return (UChar_t)fITSMuonClusterMap; }
157 UInt_t GetMUONClusterMap() const { return fITSMuonClusterMap/65536; }
158 UInt_t GetITSMUONClusterMap() const { return fITSMuonClusterMap; }
8a1418dc 159 Bool_t TestFilterBit(UInt_t filterBit) const {return (Bool_t) ((filterBit & fFilterMap) != 0);}
df9db588 160
7be1db84 161 AliAODPid *GetDetPid() const { return fDetPid; }
df9db588 162 AliAODVertex *GetProdVertex() const { return (AliAODVertex*)fProdVertex.GetObject(); }
163
164 // print
165 void Print(const Option_t *opt = "") const;
166
167 // setters
02153d58 168 void SetID(Short_t id) { fID = id; }
14b34be5 169 void SetLabel(Int_t label) {fLabel = label; }
df9db588 170
14b34be5 171 template <class T> void SetPosition(const T *x, Bool_t isDCA = kFALSE);
df9db588 172 void SetDCA(Double_t d, Double_t z);
1912763f 173 void SetUsedForVtxFit(Bool_t used = kTRUE) { used ? SetBit(kUsedForVtxFit) : ResetBit(kUsedForVtxFit); }
dc825b15 174 void SetUsedForPrimVtxFit(Bool_t used = kTRUE) { used ? SetBit(kUsedForPrimVtxFit) : ResetBit(kUsedForPrimVtxFit); }
df9db588 175
14b34be5 176 void SetOneOverPt(Double_t oneOverPt) { fMomentum[0] = oneOverPt; }
16b65f2a 177 void SetPt(Double_t pt) { fMomentum[0] = pt; };
14b34be5 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);
df9db588 181 void SetP() {fMomentum[0]=fMomentum[1]=fMomentum[2]=-999.;}
182
14b34be5 183 void SetCharge(Short_t q) { fCharge = q; }
1912763f 184 void SetChi2perNDF(Double_t chi2perNDF) { fChi2perNDF = chi2perNDF; }
df9db588 185
1912763f 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; }
df9db588 189
8a1418dc 190 Int_t GetMatchTrigger() const {return fITSMuonClusterMap>>30;}
e1c744ca 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);
8a1418dc 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;}
e1c744ca 201 void SetChi2MatchTrigger(Double_t Chi2MatchTrigger) {fChi2MatchTrigger = Chi2MatchTrigger;}
202 UShort_t GetHitsPatternInTrigCh() const { return (fITSMuonClusterMap&0xff00)>>8; }
203 void SetHitsPatternInTrigCh(UShort_t hitsPatternInTrigCh);
9861edc0 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!
e1c744ca 207
c683ddc2 208 void SetProdVertex(TObject *vertex) { fProdVertex = vertex; }
209 void SetType(AODTrk_t ttype) { fType=ttype; }
210
211 // track operations
212 Bool_t PropagateTo(Double_t xk, Double_t b);
df9db588 213
df9db588 214
df9db588 215 private :
216
217 // Momentum & position
1912763f 218 Double32_t fMomentum[3]; // momemtum stored in pt, phi, theta
219 Double32_t fPosition[3]; // position of first point on track or dca
df9db588 220
1912763f 221 Double32_t fChi2perNDF; // chi2/NDF of mometum fit
9333290e 222 Double32_t fChi2MatchTrigger; // chi2 of trigger/track matching
223 Double32_t fPID[10]; // [0.,1.,8] pointer to PID object
df9db588 224
1912763f 225 Int_t fLabel; // track label, points back to MC track
df9db588 226
9333290e 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
df9db588 229
02153d58 230 Short_t fID; // unique track ID, points back to the ESD track
231
1912763f 232 Char_t fCharge; // particle charge
1912763f 233 Char_t fType; // Track Type
df9db588 234
9333290e 235 AliAODRedCov<6> *fCovMatrix; // covariance matrix (x, y, z, px, py, pz)
7be1db84 236 AliAODPid *fDetPid; // more detailed or detector specific pid information
9333290e 237 TRef fProdVertex; // vertex of origin
df9db588 238
7be1db84 239 ClassDef(AliAODTrack,6);
df9db588 240};
241
242#endif