$B\to K{K}^{\ast }$ Decays in the Perturbative QCD Approach

Libo Guo, Qian-gui Xu, Zhen-jun Xiao

We calculate the branching ratios and CP-violating asymmetries for $B^0 \to K^{0} \ov K^{*0}$, $\ov K^{0} K^{*0}$, $K^{+}{K}^{\ast -}$, $K^{-}{K}^{\ast +}$, and $B^+\to K^+ \ov K^{*0}$ and $ \ov…