37 namespace QQbar_threshold{
39 struct alpha_s_options;
62 double alpha_s_top(
double mu, alpha_s_options alpha_s_mu0);
double alpha_s_top(double mu, double alpha_s_mZ=QQbar_threshold::alpha_s_mZ)
The strong coupling used for top-related functions.
constexpr double alpha_s_mZ
Default value for strong coupling at the scale mZ.
Definition: constants.hpp:42
double alpha_s_bottom(double mu, double alpha_s_mZ=QQbar_threshold::alpha_s_mZ)
The strong coupling used for bottom-related functions.