1 #ifndef AliMCParticle_H
2 #define AliMCParticle_H
3 /* Copyright(c) 1998-2007, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
8 //-------------------------------------------------------------------------
9 // AliVParticle realisation for MC Particles
10 // Author: Andreas Morsch, CERN
11 //-------------------------------------------------------------------------
14 #include <TParticle.h>
15 #include <TParticlePDG.h>
16 #include <TRefArray.h>
18 #include "AliTrackReference.h"
19 #include "AliVParticle.h"
21 class AliMCParticle: public AliVParticle {
24 AliMCParticle(TParticle* part, TRefArray* rarray = 0);
25 virtual ~AliMCParticle() {}
26 AliMCParticle(const AliMCParticle& mcPart);
27 AliMCParticle& operator=(const AliMCParticle& mcPart);
30 virtual Double_t Px() const;
31 virtual Double_t Py() const;
32 virtual Double_t Pz() const;
33 virtual Double_t Pt() const;
34 virtual Double_t P() const;
36 virtual Double_t OneOverPt() const;
37 virtual Double_t Phi() const;
38 virtual Double_t Theta() const;
41 virtual Double_t E() const;
42 virtual Double_t M() const;
44 virtual Double_t Eta() const;
45 virtual Double_t Y() const;
47 virtual Short_t Charge() const;
50 virtual const Double_t *PID() const {return 0;} // return PID object (to be defined, still)
53 Int_t GetNumberOfTrackReferences() {return fNTrackRef;}
54 AliTrackReference* GetTrackReference(Int_t i)
55 {return dynamic_cast<AliTrackReference*>((*fTrackReferences)[i]);}
57 TParticle *fParticle; // The wrapped TParticle
58 TRefArray *fTrackReferences; // Reference array to track references
59 Int_t fNTrackRef; // Number of track references
61 ClassDef(AliMCParticle,0) // AliVParticle realisation for MCParticles
64 inline Double_t AliMCParticle::Px() const {return fParticle->Px();}
65 inline Double_t AliMCParticle::Py() const {return fParticle->Py();}
66 inline Double_t AliMCParticle::Pz() const {return fParticle->Pz();}
67 inline Double_t AliMCParticle::Pt() const {return fParticle->Pt();}
68 inline Double_t AliMCParticle::P() const {return fParticle->P(); }
69 inline Double_t AliMCParticle::OneOverPt() const {return 1. / fParticle->Pt();}
70 inline Double_t AliMCParticle::Phi() const {return fParticle->Phi();}
71 inline Double_t AliMCParticle::Theta() const {return fParticle->Theta();}
72 inline Double_t AliMCParticle::E() const {return fParticle->Energy();}
73 inline Double_t AliMCParticle::Eta() const {return fParticle->Eta();}
75 inline Double_t AliMCParticle::M() const
77 TParticlePDG* pdg = fParticle->GetPDG();
81 return (fParticle->GetCalcMass());
86 inline Double_t AliMCParticle::Y() const
89 Double_t pz = TMath::Abs(Pz());
91 return 0.5*TMath::Log((e+pz)/(e-pz));
97 inline Short_t AliMCParticle::Charge() const
99 TParticlePDG* pdg = fParticle->GetPDG();
101 return (Short_t (pdg->Charge()));