KlnuDecay.h

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#ifndef __KLNU_H__
#define __KLNU_H__
 
#include "DecayParent.h"
#include "General.h"
#include "DefaultConfig.h"
#include "PlnuCalculator.h"
 
struct KlnuDecayCache {
    double delta_em;
    double f_corr;
 
    PlnuCalculator calc_K;
    PlnuCalculator calc_pi;
};
 
class KlnuDecay : public DecayParentConfigurable<DecayConfig> {
private:
    KlnuDecayCache cache;
 
protected:
    double R_mu23();
    double BR_K_BR_pi();
 
public:
    KlnuDecay(QCDOrder order, double matching_scale, double hadronic_scale, ObservablePortsConfig& ports) : DecayParentConfigurable(DecayMapper::to_id(Decays::K__l_nu), matching_scale, hadronic_scale, order, ports) {
        this->w_config.groups = {GroupMapper::to_id(WGroup::CC_su), GroupMapper::to_id(WGroup::CC_du)};
        this->max_order = QCDOrder::LO;
    }
 
    void load_params() override;
    std::vector<ObservableValue> compute_observable(Observables obs) override;
    std::vector<ObservableValue> compute_observable(ObservableId obs) override;
 
};
 
#endif // __KLNU_H__