1 #ifndef ALIJETPARTICLE_H
2 #define ALIJETPARTICLE_H
5 //___________________________________________________________
6 /////////////////////////////////////////////////////////////
8 // class AliJetParticle
10 // loizides@ikf.uni-frankfurt.de
12 /////////////////////////////////////////////////////////////
18 class AliJetParticle : public TObject
22 AliJetParticle(const AliJetParticle& in);
23 AliJetParticle(const TParticle* p, Int_t idx, Int_t l=0);
24 AliJetParticle(Float_t px, Float_t py, Float_t pz, Float_t etot, Int_t idx, Int_t l=0);
25 AliJetParticle(Float_t px, Float_t py, Float_t pz, Float_t etot, Int_t idx, Int_t l,
26 Float_t pt, Float_t eta, Float_t phi);
27 virtual ~AliJetParticle(){};
29 void SetMomentum(Float_t px, Float_t py, Float_t pz, Float_t e)
30 {fPx=px; fPy=py; fPz=pz; fE=e; Calculate();}
31 void SetMomentum(Float_t px, Float_t py, Float_t pz, Float_t e,
32 Float_t pt, Float_t phi, Float_t eta)
33 {fPx=px;fPy=py;fPz=pz;fE=e;fPt=pt;fEta=eta;fPhi=phi;}
35 void SetUID(Int_t id) {fIdxInEvent = id;}
36 void SetLabel(Int_t l){fLabel = l;}
38 Float_t P() const {return TMath::Sqrt(fPx*fPx+fPy*fPy+fPz*fPz);}
39 Float_t Y() const {if (fE != fPz) return 0.5*TMath::Log((fE+fPz)/(fE-fPz));
41 Float_t Theta () const {return (fPz==0)?TMath::PiOver2():TMath::ACos(fPz/P());}
43 Int_t GetUID() const {return fIdxInEvent;}
44 Int_t GetLabel() const {return fLabel;}
46 Float_t Px() const {return fPx;}
47 Float_t Py() const {return fPy;}
48 Float_t Pz() const {return fPz;}
49 Float_t Energy() const {return fE;}
51 Float_t Pt() const {return fPt;}
52 Float_t Eta() const {return fEta;}
53 Float_t Phi() const {return fPhi;}
55 void Clear(Option_t *t="");
56 void Print(Option_t *t="") const;
59 void Calculate(); //calculate values
61 Float_t fPx; // x component of momentum at vertex
62 Float_t fPy; // y component of momentum at vertex
63 Float_t fPz; // z component of momentum at vertex
64 Float_t fE; // total energy
65 Int_t fIdxInEvent; // index of particle as appeared in complete event
67 Float_t fPt; // normally calculated
68 Float_t fEta; // normally calculated
69 Float_t fPhi; // normally calculated
71 ClassDef(AliJetParticle,1) // Basic Jet Particle class