decayaction.h

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/*
 *
 *    Copyright (c) 2015-2018
 *      SMASH Team
 *
 *    GNU General Public License (GPLv3 or later)
 *
 */

#ifndef SRC_INCLUDE_DECAYACTION_H_
#define SRC_INCLUDE_DECAYACTION_H_

#include <utility>

#include "action.h"

namespace smash {

class DecayAction : public Action {
 public:
  DecayAction(const ParticleData &p, double time);

  void add_decays(DecayBranchList pv);

  void add_decay(DecayBranchPtr p);

  void generate_final_state() override;

  std::pair<double, double> sample_masses(
      double kinetic_energy_cm) const override;

  double get_total_weight() const override { return total_width_; }

  double get_partial_weight() const override { return partial_width_; }

  double total_width() const { return total_width_; }

  class InvalidDecay : public std::invalid_argument {
    using std::invalid_argument::invalid_argument;
  };

 protected:
  void format_debug_output(std::ostream &out) const override;

  DecayBranchList decay_channels_;

  double total_width_;

  double partial_width_;

  int L_ = 0;

 protected:
  virtual void one_to_three();
};

}  // namespace smash

#endif  // SRC_INCLUDE_DECAYACTION_H_