// @(#)root/eg:$Name:  $:$Id: TParticlePDG.h,v 1.1.1.1 2000/05/16 17:00:47 rdm Exp $
// Author: Pasha Murat   12/02/99

/*************************************************************************
 * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers.               *
 * All rights reserved.                                                  *
 *                                                                       *
 * For the licensing terms see $ROOTSYS/LICENSE.                         *
 * For the list of contributors see $ROOTSYS/README/CREDITS.             *
 *************************************************************************/
#ifndef ROOT_TParticlePDG
#define ROOT_TParticlePDG

#ifndef ROOT_TNamed
#include "TNamed.h"
#endif
#ifndef ROOT_TObjArray
#include "TObjArray.h"
#endif

class TParticlePDG : public TNamed {
//------------------------------------------------------------------------------
//     data members
//------------------------------------------------------------------------------
protected:

  Int_t            fPdgCode;		        // PDG code of the particle
  Double_t         fMass;                       // particle mass in GeV
  Double_t         fCharge;                     // charge in units of |e|
  Double_t         fLifetime;                   // proper lifetime in nanoseconds
  Double_t         fWidth;                      // total width in GeV
  Int_t            fParity;
  Double_t         fSpin;
  Double_t         fIsospin;                    // isospin
  Double_t         fI3;                         // i3
  Int_t            fStrangeness;                // flavours are defined if i3 != -1
  Int_t            fCharm;                      // 1 or -1 for C-particles,
                                                // 0 for others
  Int_t            fBeauty;                     //
  Int_t            fTop;                        //
  Int_t            fY;                          // X,Y: quantum numbers for the 4-th generation
  Int_t            fX;                          //
  Int_t            fStable;                     // 1 if stable, 0 otherwise
					
  TObjArray*       fDecayList;                  // array of decay channels
				
  TString          fType;                       // particle type  - what is it?

public:
				// ****** constructors  and destructor
  TParticlePDG();
  TParticlePDG(int pdg_code);
  TParticlePDG(const char* name, const char* title, Double_t mass,
	       Bool_t stable, Double_t decay_width, Double_t charge,
	       const char* type, Int_t MCnumber);

  virtual ~TParticlePDG();
				// ****** access methods

  Int_t           PdgCode    () const { return fPdgCode; }
  Double_t        Mass       () const { return fMass; }
  Double_t        Charge     () const { return fCharge; }
  Double_t        Lifetime   () const { return fLifetime; }
  Double_t        Width      () const { return fWidth; }
  Int_t           Parity     () const { return fParity; }
  Double_t        Spin       () const { return fSpin; }
  Double_t        Isospin    () const { return fIsospin; }
  Double_t        I3         () const { return fI3; }
  Int_t           Strangeness() const { return fStrangeness; }
  Int_t           Charm      () const { return fCharm; }
  Int_t           Beauty     () const { return fBeauty; }
  Int_t           Top        () const { return fTop; }
  Int_t           X          () const { return fX; }
  Int_t           Y          () const { return fY; }
  Int_t           Stable     () const { return fStable; }
  const char     *Type       () const { return fType.Data(); }

  TObjArray*      DecayList  () { return fDecayList; }

  virtual void    Print(Option_t* opt);

  ClassDef(TParticlePDG,1)  //PDG static particle definition
};

#endif