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arXiv · hep-ph/9303300

Possible huge enhancement in the radiative decay of the weal W boson into the charmed $D_{s} $ meson

Y. Y. Keum·X. Y. Pham
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Abstract

We point out that the rare decay mode $W^{\pm} \rightarrow γ+ D^{\pm}_{s} $ could be spectacularly enhanced, with a branching ratio around $10^{-6} $ which is three order of magnitude larger than previous predictions. Its observation will determine the W boson mass with great accuracy, providing additional high precision tests of the standard model, as well as reveal eventual deviation from the trilinear non-abelian gauge coupling.

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Y. Y. Keum, X. Y. Pham. 1993-03-24. Possible huge enhancement in the radiative decay of the weal W boson into the charmed $D_{s} $ meson. https://doi.org/10.1142/s0217732394001386

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