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Looking for forward backward asymmetries in $B\to K μ^+ μ^-$ and $K^+\to π^+μ^+μ^-$

Chuan-Hung Chen·Chao-Qiang Geng·Anjan K. Giri
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Abstract

We investigate the possibility of scalar interaction affecting the forward backward asymmetry in the decay mode $B\to K μ^+ μ^-$. Using the scalar contribution and advocating Cheng-Sher type ansatz we obtain sizable forward backward asymmetry. Furthermore, we study the effect of the scalar interaction in $K^+ \to π^+ μ^+ μ^-$. It is pointed out that non-zero forward backward asymmetry in $B\to K l^+ l^-$, if found in future B-factories, may indicate the new physics in the scalar sector.

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Chuan-Hung Chen, Chao-Qiang Geng, Anjan K. Giri. 2005-07-02. Looking for forward backward asymmetries in $B\to K μ^+ μ^-$ and $K^+\to π^+μ^+μ^-$. https://doi.org/10.1016/j.physletb.2005.06.086

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