Resonances ϕ(1020) and ϕ(1680) contributions for the three-body decays B+→D+sKˉK
Abstract
We study the resonances ϕ(1020) and ϕ(1680) contributions for the three-body decays B+→D+sKˉK in the perturbative QCD approach. The branching ratios for B+→D+sϕ(1020)→D+sK+K− and B+→D+sϕ(1020)→D+sK0ˉK0 are predicted to be (1.53±0.23)×10−7 and (1.02+0.19−0.13)×10−7, respectively. The decay B+→D+sϕ(1680) with ϕ(1680) decays into K+K− or K0ˉK0, has the branching fraction (6.94+1.83−2.02)×10−9, which is about 5% of the result for B+→D+sϕ(1020)→D+sK+K−.
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