HEPEVT_struct.h

#ifndef _HEPEVT_struct_included_
#define _HEPEVT_struct_included_

#include <vector>
#include "PhotosBranch.h"
#include "PhotosParticle.h"
#include "photosC.h"

namespace Photospp
{
  // const static int NMXHEP = 10000; at present NMXHEP is defined in photosC.h
const static double NO_BOOST_THRESHOLD=1.0e-8;

class HEPEVT_struct
{
public:
        /** Convert PhotosBranch to HEPEVT */
        static int  set(PhotosBranch* branch);

        /** Update event record with data from HEPEVT */
        static void get();

        /** Prepare particles for processing */
        static void prepare();

        /** Check channel for complete matrix element calculation */
        static void check_ME_channel();

        /** Finalize processing */
        static void complete();

        /** Clear HEPEVT */
        static void clear();
public:
        /** Index of decaying particle*/
        static int decay_idx;
        /** Number of channel to be used - flag for fortran routines */
        static int ME_channel;
private:
        /** Add single particle to HEPEVT */
        static void add_particle(int i, PhotosParticle * particle,
                                 int first_mother, int last_mother,
                                 int first_daughter, int last_daughter);

        /** List of particles added to HEPEVT */
        static std::vector<PhotosParticle*> m_particle_list;
};

} // namespace Photospp
#endif