Analytic Calculations of the Branching Ratio and CP Violation in Bs0→K0K¯0 Decay

We present an analytic calculation of Branching Ratio (BR) and Charge—Parity ( CP ) violating asymmetries of the B s 0 meson decays to light vector mesons ( K * 0 K ¯ * 0 ) within the framework of Naive Factorization (NF) and QCD Factorization (QCDF). We find the BR ( B s 0 → K * 0 K ¯ * 0 ) = 1.87 × 10 − 5 and 1.40 × 10 −5 for NF and QCDF, respectively. We also find that within QCDF the direct CP violation ( A C P dir ) = − 0.01 , CP violation in mixing ( A C P mix ) = 0.31 and CP violation due to interference ( A C P ΔΓ ) = 0.95 .