AxialFormFactorModelI.h

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//____________________________________________________________________________
/*!

\class    genie::AxialFormFactorModelI

\brief    Pure abstract base class. Defines the AxialFormFactorModelI interface
          to be implemented by LlewellynSmith Algorithm for calculating the
          Axial Form Factor.

\author   Aaron Meyer <asmeyer2012 \at uchicago.edu>

          based off ELFormFactorsModelI by
          Costas Andreopoulos <constantinos.andreopoulos \at cern.ch>
          University of Liverpool & STFC Rutherford Appleton Laboratory

\created  August 16, 2013

\cpright  Copyright (c) 2003-2020, The GENIE Collaboration
          For the full text of the license visit http://copyright.genie-mc.org

*/
//____________________________________________________________________________

#ifndef _AXIAL_FORM_FACTOR_MODEL_I_H_
#define _AXIAL_FORM_FACTOR_MODEL_I_H_

#include "Framework/Algorithm/Algorithm.h"

namespace genie {

class Interaction;

class AxialFormFactorModelI : public Algorithm {

public:
  virtual ~AxialFormFactorModelI();

  //! Compute the axial form factor
  virtual double FA (const Interaction * interaction) const = 0;

protected:
  AxialFormFactorModelI();
  AxialFormFactorModelI(string name);
  AxialFormFactorModelI(string name, string config);
};

}         // genie namespace
#endif    // _AXIAL_FORM_FACTOR_MODEL_I_H_