read_particles_from_HepMC.h

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#ifndef _READ_PARTICLES_FROM_HEPMC_H_
#define _READ_PARTICLES_FROM_HEPMC_H_

// HepMC headers
#include "HepMC/GenEvent.h"
#include "HepMC/GenParticle.h"
#include "HepMC/IO_GenEvent.h"

#include "TauSpinner/SimpleParticle.h"
#include <vector>
 
int readParticlesFromHepMC(const HepMC::GenEvent *event, TauSpinner::SimpleParticle &X, TauSpinner::SimpleParticle &tau, TauSpinner::SimpleParticle &tau2, std::vector<TauSpinner::SimpleParticle> &tau_daughters, std::vector<TauSpinner::SimpleParticle> &tau2_daughters);

// Get daughters of HepMC::GenParticle Recursively searches for final-state daughters of 'x' 
  std::vector<TauSpinner::SimpleParticle> *getDaughters(HepMC::GenParticle *x);

// Find last self Recursively finds the last particle with the same PDG ID on the list of its decay products 
HepMC::GenParticle *findLastSelf(HepMC::GenParticle *x);
bool isFirst(HepMC::GenParticle *x);
#endif