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// $Id: G4QGSMFragmentation.hh,v 1.5 2007/12/20 15:38:07 vuzhinsk Exp $
// GEANT4 tag $Name: geant4-09-02-ref-02 $
//
// -----------------------------------------------------------------------------
//      GEANT 4 class implementation file
//
//      History: first implementation, Maxim Komogorov, 10-Jul-1998
// -----------------------------------------------------------------------------
#ifndef G4QGSMFragmentation_h
#define G4QGSMFragmentation_h 1

#include "G4VLongitudinalStringDecay.hh"

//******************************************************************************
class G4QGSMFragmentation:public G4VLongitudinalStringDecay
   {
public:
      G4QGSMFragmentation();
      ~G4QGSMFragmentation();
      virtual G4KineticTrackVector* FragmentString(const G4ExcitedString& theString);

      const G4QGSMFragmentation & operator=(const G4QGSMFragmentation &right);
      int operator==(const G4QGSMFragmentation &right) const;
      int operator!=(const G4QGSMFragmentation &right) const;

  private:
   virtual G4double GetLightConeZ(G4double zmin, G4double zmax, G4int PartonEncoding,  G4ParticleDefinition* pHadron, G4double Px, G4double Py);      
   G4QGSMFragmentation(const G4QGSMFragmentation &right);

   virtual void Sample4Momentum(G4LorentzVector* Mom, G4double Mass, G4LorentzVector* AntiMom, G4double AntiMass, G4double InitialMass); 
   virtual G4bool StopFragmenting(const G4FragmentingString  * const string);
   virtual G4bool IsFragmentable(const G4FragmentingString * const string);
   virtual G4LorentzVector * SplitEandP(G4ParticleDefinition * pHadron, 
                                        G4FragmentingString * string,     // Uzhi
                                        G4FragmentingString * newString); // Uzhi
   virtual G4bool SplitLast(G4FragmentingString * string, 
		    G4KineticTrackVector * LeftVector,
		    G4KineticTrackVector * RightVector);

  private:
    // model parameters
    const G4double arho; 
    const G4double aphi;  
    const G4double an; 
    const G4double ala;  
    const G4double aksi; 
    const G4double alft;

  };

// Class G4QGSMFragmentation 
#endif