BranchingRatios.h

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#ifndef GeneratorInterface_LHEInterface_BranchingRatios_h
#define GeneratorInterface_LHEInterface_BranchingRatios_h

#include <map>

#include <boost/shared_ptr.hpp>

namespace lhef {

class LHEEvent;
class Hadronisation;

class BranchingRatios {
    public:
    BranchingRatios() {}
    ~BranchingRatios() {}

    void reset();

    void set(int pdgId, bool both = true, double value = 1.0);
    double getFactor(const Hadronisation *hadronisation,
                     const boost::shared_ptr<LHEEvent> &event) const;

    private:
    double get(int pdgId, const Hadronisation *hadronisation) const;

    mutable std::map<int, double>   cache;
};

} // namespace lhef

#endif // GeneratorCommon_LHEInterface_BranchingRatios_h