KllDecay.h

Go to the documentation of this file.

#ifndef KLLDECAY_H
#define KLLDECAY_H
 
#include "DecayParent.h"
#include "General.h"
#include "DefaultConfig.h"
 
struct KllDecayConfig {
    int N_L_sign = 1;
    int gen = 2;
};
 
struct KllDecayCache {
    double G_F;
    double alpha_em;
    double alpha_em_0;
    double alpha_s_m_Z;
    double sw2;
    double m_l;
    double m_c_m_c;
    double m_pi;
    double m_rho;
    double m_K;
    double f_K;
    double tau_L;
    double tau_S;
    complex_t lambda_c;
    complex_t lambda_t;
    double lambda;
    double x;
    double r_chi;
    double beta;
    double mu_b;
 
    double BR_KL_gg_exp;
    double BR_KS_gg_exp;
    double alpha_exp;
    double delta_lambda;
 
    complex_t C10;
    complex_t CQ1;
    complex_t CQ2;
};
 
class KllDecay : public DecayParentConfigurable<KllDecayConfig> {
private:
    KllDecayCache cache;
    KllDecayConfig cfg;
 
protected:  
    complex_t C_gg(double b);
    complex_t N_L();
    complex_t N_S();
    double P_c();
    double BR_L();
    double BR_S();
 
public:
    KllDecay(QCDOrder order, double matching_scale, double hadronic_scale, ObservablePortsConfig& ports) : DecayParentConfigurable(DecayMapper::to_id(Decays::K__l_l), matching_scale, hadronic_scale, order, ports) {
        this->w_config.groups = {GroupMapper::to_id(WGroup::K)};
        this->max_order = QCDOrder::NNLO;
    }
 
    void load_params() override;
    std::vector<ObservableValue> compute_observable(Observables obs) override;
    std::vector<ObservableValue> compute_observable(ObservableId obs) override;
 
    void set_config_spe(KllDecayConfig config) override {this->cfg = config;}
};
 
#endif // __KLLDECAY_H__