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// $Id: G4FTFAnnihilation.hh 74627 2013-10-17 07:04:38Z gcosmo $

#ifndef G4FTFAnnihilation_h
#define G4FTFAnnihilation_h 1

// ------------------------------------------------------------
//      GEANT 4 class header file
//
//      ---------------- G4FTFAnnihilation       --------------
//             by Vladimir Uzhinsky, November 2010.
//          Annihilation used by Fritiof (FTF) model
//              Takes a projectile and a target
//              Produces strings (excited hadrons)
// ------------------------------------------------------------

#include "globals.hh"
#include "G4FTFParameters.hh"
#include "G4ThreeVector.hh"

class G4VSplitableHadron;
class G4ExcitedString;


class G4FTFAnnihilation {

  public:
    G4FTFAnnihilation();
    virtual ~G4FTFAnnihilation();

    virtual G4bool Annihilate( G4VSplitableHadron* aPartner, 
                               G4VSplitableHadron* bPartner,
                               G4VSplitableHadron*& AdditionalString, 
                               G4FTFParameters* theParameters ) const;

  private:
    G4FTFAnnihilation( const G4FTFAnnihilation& right );      
    const G4FTFAnnihilation& operator=( const G4FTFAnnihilation& right );
    int operator==( const G4FTFAnnihilation& right ) const;
    int operator!=( const G4FTFAnnihilation& right ) const;

    G4ThreeVector GaussianPt( G4double AveragePt2, G4double maxPtSquare ) const;
    G4double ChooseX( G4double Alpha, G4double Beta ) const;
    void UnpackBaryon( G4int IdPDG, G4int& Q1, G4int& Q2, G4int& Q3 ) const;

};

#endif