/afs/hep.man.ac.uk/u/markowen/ATLAS/SFrameProof/2011EPS/manTree/manTree/MPDFInfo.h

#ifndef _MANTREE_MPDFINFO_H__
#define _MANTREE_MPDFINFO_H__

#include "TObject.h"

#ifdef _ATHENA_CLASSES__
namespace HepMC {
  class PdfInfo;
  class GenEvent;
}
#endif // _ATHENA_CLASSES__

namespace manchester {

  class MPDFInfo : public TObject {

  public:

    MPDFInfo();

    MPDFInfo(const MPDFInfo& pdf);

    void Reset();

    MPDFInfo& operator=(const MPDFInfo& pdf);

#ifdef _ATHENA_CLASSES__
    MPDFInfo(const HepMC::GenEvent& event);
    MPDFInfo(const HepMC::PdfInfo& pdf);

    void SetParams(const HepMC::PdfInfo& pdf);
#endif // _ATHENA_CLASSES__

    virtual ~MPDFInfo();

    int   id1()                   const { return m_id1; }
    int   id2()                   const { return m_id2; }
    //int   pdf_id1()                   const { return m_pdf_id1; }
    //int   pdf_id2()                   const { return m_pdf_id2; }
    double x1()                   const { return m_x1; } 
    double x2()                   const { return m_x2; }
    double scalePDF()             const { return m_scalePDF;  }
    double pdf1()                 const { return m_pdf1; }
    double pdf2()                 const { return m_pdf2; }

  private:

    int   m_id1; 
    int   m_id2; 
    //int   m_pdf_id1; //not stored in atlas HepMC version
    //int   m_pdf_id2; //not stored in atlas HepMC version
    double m_x1;
    double m_x2;
    double m_scalePDF; 
    double m_pdf1;
    double m_pdf2;

    ClassDef(MPDFInfo, 1);

  };//class MPDFInfo
}//namespace manchester

#endif //  _MANTREE_MPDFINFO_H__

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