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// $Id: G4PreCompoundAlpha.hh,v 1.12 2010-08-28 15:16:55 vnivanch Exp $
// GEANT4 tag $Name: not supported by cvs2svn $
//
// by V. Lara
//
// Modified:
// J. M. Quesada (July 08) cleanup 
// 20.08.2010 V.Ivanchenko added int Z and A and cleanup; added 
//                        G4ParticleDefinition to constructor,
//                        moved constructor and destructor to source

#ifndef G4PreCompoundAlpha_h
#define G4PreCompoundAlpha_h 1

#include "G4PreCompoundIon.hh"
#include "G4AlphaCoulombBarrier.hh"

class G4PreCompoundAlpha : public G4PreCompoundIon
{
public:

  G4PreCompoundAlpha();

  virtual ~G4PreCompoundAlpha();

protected:

  virtual G4double GetRj(G4int NumberParticles, G4int NumberCharged);

  virtual G4double CrossSection(G4double ekin) ; 

  virtual G4double FactorialFactor(G4int N, G4int P);

  virtual G4double CoalescenceFactor(G4int A);

  virtual G4double GetAlpha();

  G4double GetOpt12(G4double K);

  G4double GetOpt34(G4double K);
  
private:

  // operators
  G4PreCompoundAlpha(const G4PreCompoundAlpha &right);
  const G4PreCompoundAlpha& 
  operator= (const G4PreCompoundAlpha &right);
  G4int operator==(const G4PreCompoundAlpha &right) const;
  G4int operator!=(const G4PreCompoundAlpha &right) const;    

  G4AlphaCoulombBarrier theAlphaCoulombBarrier;
  G4double ResidualAthrd;
  G4double FragmentAthrd;
  G4int FragmentA;
  G4int ResidualA;
  G4int ResidualZ;
  G4int theA;
  G4int theZ;

};
#endif