constexpr double muonMassInMeV
the mass of the muon (in MeV)
constexpr double chargedKaonMassInMeV
the mass of the charged kaon (in MeV)
constexpr double chargedPionMassInMeV
the mass of the charged pion (in MeV)
constexpr double JpsiMassInMeV
constexpr double BsMassInMeV
the mass of the Bs meson (in MeV)
constexpr double protonMassInMeV
the mass of the proton (in MeV)
constexpr double electronMassInMeV
the mass of the electron (in MeV)