Branching ratio and CP violation of $B_s\to \pi K$ decays in the perturbative QCD approach

Xian-Qiao Yu, Ying Li, Cai-Dian Lü

In the framework of perturbative QCD approach, we calculate the branching ratio and CP asymmetry for $B_s^0({\bar{B}}_s)\to {\pi }^{\pm }{K}^{\mp }$ and $B_{s}(\bar{B}_{s})\to π^{0}\bar{K…