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Removing declaration of constructor with report identifiers as parameters
[u/mrichter/AliRoot.git] / STEER / AliESDv0.h
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e23730c7 1#ifndef ALIESDV0_H
2#define ALIESDV0_H
3
4/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
5 * See cxx source for full Copyright notice */
6
4f679a16 7/* $Id$ */
8
e23730c7 9//-------------------------------------------------------------------------
10// ESD V0 Vertex Class
4f679a16 11// This class is part of the Event Summary Data set of classes
d6a49f20 12// Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
13// Modified by: Marian Ivanov, CERN, Marian.Ivanov@cern.ch
14// and Boris Hippolyte,IPHC, hippolyt@in2p3.fr
e23730c7 15//-------------------------------------------------------------------------
16
17#include <TObject.h>
18#include <TPDGCode.h>
d6a49f20 19#include "AliESDV0Params.h"
20#include "AliExternalTrackParam.h"
646c9704 21#include "AliVParticle.h"
e23730c7 22
646c9704 23class AliESDv0 : public AliVParticle {
e23730c7 24public:
25 AliESDv0();
c7bafca9 26 AliESDv0(const AliExternalTrackParam &t1, Int_t i1,
27 const AliExternalTrackParam &t2, Int_t i2);
e23730c7 28
c028b974 29 AliESDv0(const AliESDv0&);
30 virtual ~AliESDv0();
732a24fe 31 AliESDv0& operator=(const AliESDv0&);
32 virtual void Copy(TObject &obj) const;
c028b974 33
646c9704 34// Start with AliVParticle functions
35 virtual Double_t Px() const { return fNmom[0]+fPmom[0]; }
36 virtual Double_t Py() const { return fNmom[1]+fPmom[1]; }
37 virtual Double_t Pz() const { return fNmom[2]+fPmom[2]; }
38 virtual Double_t Pt() const { return TMath::Sqrt(Px()*Px()+Py()*Py()); }
39 virtual Double_t P() const {
40 return TMath::Sqrt(Px()*Px()+Py()*Py()+Pz()*Pz());
41 }
42 virtual Bool_t PxPyPz(Double_t p[3]) const { p[0] = Px(); p[1] = Py(); p[2] = Pz(); return kTRUE; }
43 virtual Double_t Xv() const { return fPos[0]; }
44 virtual Double_t Yv() const { return fPos[1]; }
45 virtual Double_t Zv() const { return fPos[2]; }
46 virtual Bool_t XvYvZv(Double_t x[3]) const { x[0] = Xv(); x[1] = Yv(); x[2] = Zv(); return kTRUE; }
47 virtual Double_t OneOverPt() const { return (Pt() != 0.) ? 1./Pt() : -999.; }
48 virtual Double_t Phi() const {return TMath::Pi()+TMath::ATan2(-Py(),-Px()); }
49 virtual Double_t Theta() const {return 0.5*TMath::Pi()-TMath::ATan(Pz()/(Pt()+1.e-13)); }
50 virtual Double_t E() const; // default is KOs but can be changed via ChangeMassHypothesis (defined in the .cxx)
51 virtual Double_t M() const { return GetEffMass(); }
52 virtual Double_t Eta() const { return 0.5*TMath::Log((P()+Pz())/(P()-Pz()+1.e-13)); }
3e27a419 53 virtual Double_t Y() const;
646c9704 54 virtual Short_t Charge() const { return 0; }
55 virtual Int_t GetLabel() const { return -1; } // temporary
56 virtual const Double_t *PID() const { return 0; } // return PID object ? (to be discussed!)
57
3e27a419 58 // Then extend the AliVParticle functions
59 Double_t E(Int_t pdg) const;
60 Double_t Y(Int_t pdg) const;
61
62 // Now the functions for analysis consistency
63 Double_t RapK0Short() const;
64 Double_t RapLambda() const;
65 Double_t AlphaV0() const;
66 Double_t PtArmV0() const;
67
68 // Eventually the older functions
e23730c7 69 Double_t ChangeMassHypothesis(Int_t code=kK0Short);
70
c028b974 71 Int_t GetPdgCode() const {return fPdgCode;}
9973a4bf 72 Float_t GetEffMass(UInt_t p1, UInt_t p2);
562dd0b4 73 Double_t GetEffMass() const {return fEffMass;}
74 Double_t GetChi2V0() const {return fChi2V0;}
c028b974 75 void GetPxPyPz(Double_t &px, Double_t &py, Double_t &pz) const;
76 void GetNPxPyPz(Double_t &px, Double_t &py, Double_t &pz) const;
77 void GetPPxPyPz(Double_t &px, Double_t &py, Double_t &pz) const;
78 void GetXYZ(Double_t &x, Double_t &y, Double_t &z) const;
3e27a419 79 Float_t GetD(Double_t x0,Double_t y0,Double_t z0) const;
c028b974 80 Int_t GetNindex() const {return fNidx;}
81 Int_t GetPindex() const {return fPidx;}
c028b974 82 void SetDcaV0Daughters(Double_t rDcaV0Daughters=0.);
562dd0b4 83 Double_t GetDcaV0Daughters() {return fDcaV0Daughters;}
b75d63a7 84 Float_t GetV0CosineOfPointingAngle(Double_t&, Double_t&, Double_t&) const;
562dd0b4 85 Double_t GetV0CosineOfPointingAngle() const {return fPointAngle;}
b75d63a7 86 void SetV0CosineOfPointingAngle(Double_t cpa) {fPointAngle=cpa;}
87 void SetOnFlyStatus(Bool_t status){fOnFlyStatus=status;}
88 Bool_t GetOnFlyStatus() const {return fOnFlyStatus;}
89 const AliExternalTrackParam *GetParamP() const {return &fParamP;}
90 const AliExternalTrackParam *GetParamN() const {return &fParamN;}
91
92
d6a49f20 93
94 // **** The following member functions need to be revised ***
95
074f017b 96 void GetPosCov(Double_t cov[6])const ; // getter for the covariance matrix of the V0 position
d6a49f20 97 Double_t GetSigmaY(); // sigma of y coordinate at vertex posistion
98 Double_t GetSigmaZ(); // sigma of z coordinate at vertex posistion
99 Double_t GetSigmaAP0(); // calculate sigma of Point angle resolution at vertex pos.
100 Double_t GetSigmaD0(); // calculate sigma of position resolution at vertex pos.
101 Double_t GetEffectiveSigmaAP0(); // calculate sigma of point angle resolution at vertex pos. effecive parameterization
102 Double_t GetEffectiveSigmaD0(); // calculate sigma of position resolution at vertex pos.
103 Double_t GetMinimaxSigmaAP0(); // calculate mini-max sigma of point angle resolution
104 Double_t GetMinimaxSigmaD0(); // calculate mini-max sigma of dca resolution
105 Double_t GetLikelihoodAP(Int_t mode0, Int_t mode1); // get likelihood for point angle
106 Double_t GetLikelihoodD(Int_t mode0, Int_t mode1); // get likelihood for DCA
107 Double_t GetLikelihoodC(Int_t mode0, Int_t mode1); // get likelihood for Causality
108 //
109 //
d6a49f20 110 static const AliESDV0Params & GetParameterization(){return fgkParams;}
b75d63a7 111 void SetParamP(const AliExternalTrackParam & paramP) {fParamP = paramP;}
112 void SetParamN(const AliExternalTrackParam & paramN) {fParamN = paramN;}
d6a49f20 113 void SetStatus(Int_t status){fStatus=status;}
114 Int_t GetStatus() const {return fStatus;}
b75d63a7 115 Int_t GetIndex(Int_t i) const {return (i==0) ? fNidx : fPidx;}
116 void SetIndex(Int_t i, Int_t ind) {(i==0) ? (fNidx=ind) : (fPidx=ind);}
d6a49f20 117 Double_t *GetAnglep() {return fAngle;}
118 Double_t GetRr() const {return fRr;}
d6a49f20 119 Double_t GetDistSigma() const {return fDistSigma;}
120 void SetDistSigma(Double_t ds) {fDistSigma=ds;}
d6a49f20 121 Float_t GetChi2Before() const {return fChi2Before;}
122 void SetChi2Before(Float_t cb) {fChi2Before=cb;}
123 Float_t GetChi2After() const {return fChi2After;}
124 void SetChi2After(Float_t ca) {fChi2After=ca;}
d6a49f20 125 Float_t GetNAfter() const {return fNAfter;}
562dd0b4 126 void SetNAfter(Short_t na) {fNAfter=na;}
127 Short_t GetNBefore() const {return fNBefore;}
128 void SetNBefore(Short_t nb) {fNBefore=nb;}
d6a49f20 129 void SetCausality(Float_t pb0, Float_t pb1, Float_t pa0, Float_t pa1);
562dd0b4 130 const Double_t * GetCausalityP() const {return fCausality;}
d6a49f20 131 void SetClusters(Int_t *clp, Int_t *clm);
132 const Int_t * GetClusters(Int_t i) const {return fClusters[i];}
133 void SetNormDCAPrim(Float_t nd0, Float_t nd1){fNormDCAPrim[0] = nd0; fNormDCAPrim[1]=nd1;}
562dd0b4 134 const Double_t *GetNormDCAPrimP() const {return fNormDCAPrim;}
d6a49f20 135
136protected:
562dd0b4 137 AliExternalTrackParam fParamN; // external parameters of negative particle
138 AliExternalTrackParam fParamP; // external parameters of positive particle
139
140 // CKBrev: tkink about revision
c028b974 141
562dd0b4 142 Double32_t fEffMass; // reconstructed V0's effective mass
143 Double32_t fDcaV0Daughters; // dca between V0's daughters
144 Double32_t fChi2V0; // V0's chi2 value
145 Double32_t fPos[3]; // V0's position (global)
146 Double32_t fPosCov[6]; // covariance matrix of the vertex position
147 Double32_t fNmom[3]; // momentum of the negative daughter (global)
148 Double32_t fPmom[3]; // momentum of the positive daughter (global)
646c9704 149 Double32_t fNormDCAPrim[2]; // normalize distance to the primary vertex CKBrev
562dd0b4 150 Double32_t fRr; //rec position of the vertex CKBrev
151 Double32_t fDistSigma; //sigma of distance CKBrev
152 Double32_t fChi2Before; //chi2 of the tracks before V0 CKBrev
153 Double32_t fChi2After; // chi2 of the tracks after V0 CKBrev
b75d63a7 154
e23730c7 155
562dd0b4 156 Double32_t fCausality[4]; //[0,1,8] causality information - see comments in SetCausality CKBrev
157 Double32_t fAngle[3]; //[-2*pi,2*pi,16]three angles CKBrev
158 Double32_t fPointAngleFi; //[-1,1,16]point angle fi CKBrev
159 Double32_t fPointAngleTh; //[-1,1,16]point angle theta CKBrev
160 Double32_t fPointAngle; //[-1,1,16] cosine of the pointing angle
161
162
163 Int_t fPdgCode; // reconstructed V0's type (PDG code)
164 Int_t fClusters[2][6]; //! its clusters CKBrev
b75d63a7 165 Int_t fNidx; // index of the negative daughter
b75d63a7 166 Int_t fPidx; // index of the positive daughter
e23730c7 167
e23730c7 168
d6a49f20 169
562dd0b4 170 Short_t fStatus; //status CKBrev
171 Short_t fNBefore; // number of possible points before V0 CKBrev
172 Short_t fNAfter; // number of possible points after V0 CKBrev
173
174 Bool_t fOnFlyStatus; // if kTRUE, then this V0 is recontructed
175 // "on fly" during the tracking
176
d6a49f20 177 //
178 // parameterization coefficients
562dd0b4 179 static const AliESDV0Params fgkParams; //! resolution and likelihood parameterization
d6a49f20 180
181private:
d6a49f20 182
056fe8e5 183 ClassDef(AliESDv0,5) // ESD V0 vertex
e23730c7 184};
185
186inline
187void AliESDv0::GetNPxPyPz(Double_t &px, Double_t &py, Double_t &pz) const {
188px=fNmom[0]; py=fNmom[1]; pz=fNmom[2];
189}
190
191inline
192void AliESDv0::GetPPxPyPz(Double_t &px, Double_t &py, Double_t &pz) const {
193px=fPmom[0]; py=fPmom[1]; pz=fPmom[2];
194}
195
dfbf942c 196inline
c028b974 197void AliESDv0::SetDcaV0Daughters(Double_t rDcaV0Daughters){
198 fDcaV0Daughters=rDcaV0Daughters;
dfbf942c 199}
200
e23730c7 201#endif