Implication of the HyperCP bosonX0(214 MeV) in the flavor changing neutral current processes

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We analyze the inclusive $b(c)\ensuremath{\rightarrow}s(u){\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}$ and exclusive $B({D}^{+})\ensuremath{\rightarrow}K({\ensuremath{\pi}}^{+}){\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}$ flavor changing neutral current decays in light of the HyperCP boson ${X}^{0}$ of mass 214 MeV recently observed in the hyperon decay ${\ensuremath{\Sigma}}^{+}\ensuremath{\rightarrow}p{\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}$. Using the branching ratio data of the respective inclusive and exclusive decays, we obtain constraints on ${g}_{1}({h}_{1})$ and ${g}_{2}({h}_{2})$, the scalar and pseudoscalar coupling constants of the $b\ensuremath{-}s\ensuremath{-}{X}^{0}(c\ensuremath{-}u\ensuremath{-}{X}^{0})$ vertices.