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 // -*- C++ -*-
 #ifndef HERWIG_KornerKurodaFormFactor_H
 #define HERWIG_KornerKurodaFormFactor_H
 //
 // This is the declaration of the KornerKurodaFormFactor class.
 //
 
 #include "BaryonFormFactor.h"
 
 namespace Herwig {
 using namespace ThePEG;
 
 /**
  * The KornerKurodaFormFactor class implements the simple model of PRD 16, 2165, 1997 for the
  * form factors of the baryon octet/
  *
  * @see \ref KornerKurodaFormFactorInterfaces "The interfaces"
  * defined for KornerKurodaFormFactor.
  */
 class KornerKurodaFormFactor: public BaryonFormFactor {
 
 public:
 
   /**
    * The default constructor.
    */
   KornerKurodaFormFactor();
 
   /**
    * The form factor for the weak decay of a spin \f$\frac12\f$ baryon to a 
    * spin \f$\frac12\f$ baryon.  
    * @param q2 The scale \f$q^2\f$.
    * @param iloc The location in the form factor list.
    * @param id0 The PDG code of the incoming baryon.
    * @param id1 The PDG code of the outgoing baryon.
    * @param m0 The mass of the incoming baryon.
    * @param m1 The mass of the outgoing baryon.
    * @param f1v The form factor \f$F^V_1\f$.
    * @param f2v The form factor \f$F^V_2\f$.
    * @param f3v The form factor \f$F^V_3\f$.
    * @param f1a The form factor \f$F^A_1\f$.
    * @param f2a The form factor \f$F^A_2\f$.
    * @param f3a The form factor \f$F^A_3\f$.
    * @param virt Whether the q2 is space or timelike
    */
   virtual void SpinHalfSpinHalfFormFactor(Energy2 q2,int iloc, int id0, int id1,
                       Energy m0, Energy m1,
                       Complex & f1v,Complex & f2v,Complex & f3v,
                       Complex & f1a,Complex & f2a,Complex & f3a,
                       FlavourInfo flavour,
                       Virtuality virt=SpaceLike);
 
   /**
    * Output the setup information for the particle database
    * @param os The stream to output the information to
    * @param header Whether or not to output the information for MySQL
    * @param create Whether or not to add a statement creating the object
    */
   virtual void dataBaseOutput(ofstream & os,bool header,bool create) const;
 
 public:
 
   /** @name Functions used by the persistent I/O system. */
   //@{
   /**
    * Function used to write out object persistently.
    * @param os the persistent output stream written to.
    */
   void persistentOutput(PersistentOStream & os) const;
 
   /**
    * Function used to read in object persistently.
    * @param is the persistent input stream read from.
    * @param version the version number of the object when written.
    */
   void persistentInput(PersistentIStream & is, int version);
   //@}
 
   /**
    * The standard Init function used to initialize the interfaces.
    * Called exactly once for each class by the class description system
    * before the main function starts or
    * when this class is dynamically loaded.
    */
   static void Init();
 
 protected:
 
   /** @name Clone Methods. */
   //@{
   /**
    * Make a simple clone of this object.
    * @return a pointer to the new object.
    */
   virtual IBPtr clone() const;
 
   /** Make a clone of this object, possibly modifying the cloned object
    * to make it sane.
    * @return a pointer to the new object.
    */
   virtual IBPtr fullclone() const;
   //@}
   
 protected:
   
   /**
    * Initialize this object after the setup phase before saving an
    * EventGenerator to disk.
    * @throws InitException if object could not be initialized properly.
    */
   virtual void doinit();
 
 private:
 
   /**
    * The assignment operator is private and must never be called.
    * In fact, it should not even be implemented.
    */
   KornerKurodaFormFactor & operator=(const KornerKurodaFormFactor &) = delete;
 
 private:
 
   /**
    *  Whether or not to include the nucleon modes
    */
   bool includeNucleon_;
 
   /**
    * Masses for the form-factors
    */
   //@{
   /**
    *  Mass of the \f$\rho\f$ meson
    */
   Energy mRho_;
 
   /**
    *  Mass of the \f$\omega\f$ meson
    */
   Energy mOmega_;
 
   /**
    *  Mass of the \f$\phi\f$ meson
    */
   Energy mPhi_;
   //@}
 
   /**
    *   Regge slope
    */
   InvEnergy2 aPrime_;
 
   /**
    *  Couplings for the form factors
    */
   //@{
   /**
    *  Coupling \f$C_1^\rho\f$
    */
   vector<double> c1Rho_;
   
   /**
    *  Coupling \f$C_1^\omega\f$
    */
   vector<double> c1Omega_;
   
   /**
    *  Coupling \f$C_1^\phi\f$
    */
   vector<double> c1Phi_;
   
   /**
    *  Coupling \f$C_1^\rho+C_2^\rho\f$
    */
   vector<double> c12Rho_;
   
   /**
    *  Coupling \f$C_1^\omega+C_2^\omega\f$
    */
   vector<double> c12Omega_;
   
   /**
    *  Coupling \f$C_1^\phi+C_2^\phi\f$
    */
   vector<double> c12Phi_;
   
   /**
    *  Coupling \f$C_2^\rho\f$
    */
   vector<double> c2Rho_;
   
   /**
    *  Coupling \f$C_2^\omega\f$
    */
   vector<double> c2Omega_;
   
   /**
    *  Coupling \f$C_2^\phi\f$
    */
   vector<double> c2Phi_;
   
   /**
    *  Magnetic moments
    */
   vector<double> mu_;
   //@}
 };
 
 }
 
 #endif /* HERWIG_KornerKurodaFormFactor_H */

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