#ifndef STNTUPLE_TObspParticle
#define STNTUPLE_TObspParticle

#ifdef __GNUG__
#pragma interface
#endif

#include "TObject.h"
#include "TLorentzVector.h"

class TObspParticle : public TObject {
protected:
  TLorentzVector   fMomentum;
  Double_t         fPath;
  Int_t            fPdgCode;
  Int_t            fVertexNumber;
  Int_t            fDecayVertexNumber;
  Int_t            fGenpNumber;
  Int_t            fDecayCode;
  Float_t          fCharge;
public:
//------------------------------------------------------------------------------
//  functions
//------------------------------------------------------------------------------
				// ****** constructors and destructor
  TObspParticle();
  TObspParticle(Int_t   IPart, 
		Int_t   PdgCode, 
		Float_t Px, Float_t Py, Float_t Pz, Float_t M,
		Float_t Path, 
		Int_t   VertexNumber, 
		Int_t   DecayVertexNumber, 
		Int_t   GenpNumber,
		Int_t   DecayCode,
		Float_t Charge = -100);

  virtual ~TObspParticle();
//-----------------------------------------------------------------------------
// init methods: OBSP particles are always on-shell 
//-----------------------------------------------------------------------------
  int Init (Int_t   IPart, 
	    Int_t   PdgCode,
	    Float_t Px, Float_t Py, Float_t Pz, Float_t M,
	    Float_t Path, 
	    Int_t   VertexNumber, 
	    Int_t   DecayVertexNumber, 
	    Int_t   GenpNumber,
	    Int_t   DecayCode,
	    Float_t Charge = -100);
					// ****** accessors

  Int_t             Number           () const { return GetUniqueID();      }
  Float_t           Charge           () const { return fCharge; }
  Double_t          Path             () const { return fPath; }
  TLorentzVector*   Momentum         ()       { return &fMomentum;         }
  Int_t             GenpNumber       () const { return fGenpNumber; }
  Int_t             DecayCode        () const { return fDecayCode; }
  Int_t             VertexNumber     () const { return fVertexNumber; }
  Int_t             DecayVertexNumber() const { return fDecayVertexNumber; }
  Int_t             PdgCode          () const { return fPdgCode; }

					// ****** overloaded methods of TObject

  void     Print(Option_t* opt = "") const;

  ClassDef(TObspParticle,1)	// OBSP particle
};

#endif