// -*- C++ -*-
#ifndef RIVET_DISDiffHadron_HH
#define RIVET_DISDiffHadron_HH

#include "Rivet/Projections/Beam.hh"
#include "Rivet/Projections/HadronicFinalState.hh"
#include "Rivet/Particle.hh"
#include "Rivet/Event.hh"

namespace Rivet {


  class DISDiffHadron : public Projection {
  public:



    DISDiffHadron() {
      setName("DISDiffHadron");
      declare(Beam(), "Beam");
      declare(FinalState(), "FS");
    }

    DEFAULT_RIVET_PROJ_CLONE(DISDiffHadron);



  protected:

    virtual void project(const Event& e);

    virtual CmpState compare(const Projection& p) const;


  public:

    const Particle& in() const { return _incoming; }

    const Particle& out() const { return _outgoing; }

  private:

    Particle _incoming;

    Particle _outgoing;

  };

}


#endif