QELFormFactorsModelI.h

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//____________________________________________________________________________
/*!
 
\class    genie::QELFormFactorsModelI
 
\brief    Pure abstract base class. Defines the QELFormFactorsModelI interface
          to be implemented by any algorithmic class computing Quasi-Elastic
          Form Factors.
 
\author   Costas Andreopoulos <c.andreopoulos \at cern.ch>
          University of Liverpool
 
\created  May 03, 2004
 
\cpright  Copyright (c) 2003-2025, The GENIE Collaboration
          For the full text of the license visit http://copyright.genie-mc.org          
*/
//____________________________________________________________________________
 
#ifndef _QEL_FORM_FACTORS_MODEL_I_H_
#define _QEL_FORM_FACTORS_MODEL_I_H_
 
#include "Framework/Algorithm/Algorithm.h"
#include "Framework/Interaction/Interaction.h"
 
namespace genie {
 
class QELFormFactorsModelI : public Algorithm {
 
public:
  virtual ~QELFormFactorsModelI();
 
  //! Compute the form factor F1V for the input interaction
  virtual double F1V   (const Interaction * interaction) const = 0;
 
  //! Compute the form factor xi*F2V for the input interaction
  virtual double xiF2V (const Interaction * interaction) const = 0;
 
  //! Compute the form factor FA for the input interaction
  virtual double FA    (const Interaction * interaction) const = 0;
 
  //! Compute the form factor Fp for the input interaction
  virtual double Fp    (const Interaction * interaction) const = 0;
 
protected:
  QELFormFactorsModelI();
  QELFormFactorsModelI(string name);
  QELFormFactorsModelI(string name, string config);
};
 
}         // genie namespace
#endif    // _QEL_FORM_FACTORS_MODEL_I_H_