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arXiv · 0711.4987

Okubo-Zweig-Iizuka-rule violation and B\to η^{(\prime)}K branching ratios

Jen-Feng Hsu·Yeo-Yie Charng·Hsiang-nan Li
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Abstract

We show that few-percent Okubo-Zweig-Iizuka-rule violating effects in the quark-flavor basis for the $η$-$η'$ mixing can enhance the chiral scale associated with the $η_q$ meson few times. This enhancement is sufficient for accommodating the dramatically different data of the $B\toη^{\prime} K$ and $B\toηK$ branching ratios. We comment on other proposals for resolving this problem, including flavor-singlet contributions, axial U(1) anomaly, and nonperturbative charming penguins. Discrimination of the above proposals by means of the $B\toη^{(\prime)}\ellν$ and $B_s\toη^{(\prime)}\ell\ell$ data is suggested.

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Jen-Feng Hsu, Yeo-Yie Charng, Hsiang-nan Li. 2008-05-22. Okubo-Zweig-Iizuka-rule violation and B\to η^{(\prime)}K branching ratios. https://doi.org/10.1103/physrevd.78.014020

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