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Analysis of Bs→KK decays in the PQCD
2001
Physics Letters B
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We study B_s→ KK decays in the framework of the PQCD. We show that the branching ratios of B_s→ (K^+ K^-, K^0 K̅^0) are about (22.43, 25.78) × 10^-6 for ϕ_3(γ)≃72^0, which are consistent with the model-independent estimations. We find that the typical scale of the decays is near 1.7 GeV. We also point out that the induced strong phase δ is around 207^0 so that the direct CP asymmetry of B_s→ K^+K^- could reach 15
doi:10.1016/s0370-2693(01)01117-0
fatcat:ujmi5mdrjngsnaqpkyzxfwxtie