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arXiv · 0809.0498

Implication of the HyperCP boson $X^0$ (214 MeV) in the flavour changing neutral current processes

Prasanta Kumar Das
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Abstract

We analyze the inclusive $b(c) \to s(u) μ^+ μ^-$ and the exclusive $B(D^+) \to K(π^+) μ^+ μ^-$ flavour changing neutral current decays in the light of HyperCP boson $X^0$ of mass 214 MeV recently observed in the hyperon decay $Σ^+ \to p μ^+ μ^-$. Using the branching ratio data of the above inclusive and exclusive decays, we obtain constraints on $g_1 (h_1)$ and $g_2 (h_2)$, the scalar and pseudo-scalar coupling constants of the $b-s-X^0 (c-u-X^0)$ vertices.

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Prasanta Kumar Das. 2008-09-02. Implication of the HyperCP boson $X^0$ (214 MeV) in the flavour changing neutral current processes. https://doi.org/10.1103/physrevd.80.034017

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