Decayer.h

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#ifndef FASTSIM_DECAYER_H
#define FASTSIM_DECAYER_H

#include <memory>
#include <vector>

// Author: L. Vanelderen
// Date: 13 May 2014
//
// Revision: Class structure modified to match SimplifiedGeometryPropagator
//           S. Kurz, 29 May 2017

namespace gen {
  class P8RndmEngine;
  typedef std::shared_ptr<P8RndmEngine> P8RndmEnginePtr;
}  // namespace gen

namespace CLHEP {
  class HepRandomEngine;
}

namespace Pythia8 {
  class Pythia;
}

namespace fastsim {
  class Particle;


  class Decayer {
  public:
    Decayer();

    ~Decayer();


    void decay(const Particle& particle,
               std::vector<std::unique_ptr<Particle> >& secondaries,
               CLHEP::HepRandomEngine& engine) const;

  private:
    std::unique_ptr<Pythia8::Pythia> pythia_;  
    gen::P8RndmEnginePtr pythiaRandomEngine_;  
  };
}  // namespace fastsim
#endif