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Final State Interaction In $B\to KK$ Decays

Cai-Dian Lü·Yue-Long Shen·Wei Wang
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Abstract

We study the final state interaction effects in $B\to KK$ decays. We find that the $t$ channel one-particle-exchange diagrams cannot enhance the branching ratios of $\bar{B^0}\to K^0\bar{K^0}$ and $B^-\to K^0K^-$ very sizably. For the pure annihilation process $\bar{B^0}\to K^+K^-$, the obtained branching ratio by final state interaction is at ${\cal{O}}(10^{-8})$.

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Cai-Dian Lü, Yue-Long Shen, Wei Wang. 2006-02-08. Final State Interaction In $B\to KK$ Decays. https://doi.org/10.1103/physrevd.73.034005

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