Looking for forward backward asymmetries in B ---> K mu+ mu- and K+ ---> pi+ mu+ mu-

. 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 \pi^+ \mu^+ \mu^-

. 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.

13.20.-v
13.20.He
B: rare decay
B: semileptonic decay
K+: semileptonic decay
angular distribution: asymmetry
effective Lagrangian
effective Hamiltonian
new interaction: scalar
decay: form factor

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Figures(0)

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