B→K0^*(1430)K Decays in Perturbative QCD Approach |
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作者姓名: | 刘新 肖振车 |
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作者单位: | Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing 210097, China |
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基金项目: | Supported by the National Natural Science Foundation of China under Grant Nos. 10575052, 10605012, and 10735080 |
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摘 要: | In this article, we calculate the branching ratios of B→K0^* (1430)K decays by employing the pertur-bative QCD (pQCD) approach at leading order. We perform the evaluations in the two scenarios for the scalar meson spectrum. We find that (i) The leading order pQCD predictions for the branching ratio Br(B^+→K^+K0^*(1430)^0)are in good agreement with the experimental upper limit in both scenarios, while the pQCD predictions for other considered B→K0^*(1430)K decay modes are also presented and will be tested by the LHC experiments; (ii) The annihilation contributions play an important role in these considered decays, for B^0→K0^*(1430)^±K^± decays,for example,which are found to be (1-4)×10^-6.
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关 键 词: | k衰变 微扰QCD 衰变分支比 法则 CP破坏 量子色动力学 实验测试 衰变模式 |
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