  We apply the Cartan's supersymmetric model to the weak interaction of
hadrons. The electromagnetic currents are transformed by
$G_{12},G_{123},G_{13},G_{132}$ and the factor$(1-\gamma_5)$ is inserted
between $l \bar\nu$ or $\bar l \nu$ when the photon is replaced by $W^\pm$, and
between $l \bar l$ or $\nu\bar \nu$ when the photon is replaced by $Z$.
  Electromagnetic currents in the Higgs boson $H^0$ decay into 2$\gamma$ and
$D_s(0^+)$ decay into $D_s(0^-)\pi$ and $D_s(0^-)\gamma$ in which leptons are
replaced by quarks are also studied.
  A possibility that the boson near the $B\bar B$ theshold $\chi_b(3P, 10.53$
GeV) is the Higgs boson partner $h^0$ is discussed.
  We adopt Dirac lepton neutrinos and Majorana quark neutrinos, and construct a
model that satisfy the $Z_3$ symmetry of the lepton sector and the quark
sector, by adding two right-handed neutrinos whose left-handed partner cannot
be detected by our electro-magnetic detectors.
