| B→K0^＊（1430）η（＇） decays in the pQCD approach |
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| 引用本文： | 刘新,张志清,肖振军.B→K0^＊（1430）η（＇） decays in the pQCD approach[J].中国物理 C,2010,34(2):157-164. |
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| 作者姓名： | 刘新 张志清 肖振军 |
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| 作者单位： | Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing 210097, China; Department of Mathematics and Physics, Henan University of Technology, Zhengzhou 450052, China |
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| 基金项目： | Supported by National Natural Science Foundation of China （10575052, 10605012, 10735080）
X. Liu would like to thank Run-Hui Li for useful discussions. |
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| 摘 要： | Based on the assumption of two-quark structure of the scalar meson K0^＊（1430）, we calculate the CP-averaged branching ratios for B→K0^＊（1430）η（＇） decays in the framework of the perturbative QCD （pQCD） approach here. We perform the evaluations in two scenarios for the scalar meson spectrum. We find that： （a） the pQCD predictions for Br（B→K0^＊（1430）η（＇）） which are about 10^-5 10^-6, basically agree with the data within large theoretical uncertainty; （b） the agreement between the pQCD predictions and the data in Scenario Ⅰ is better than that in Scenario Ⅱ, which can be tested by the forthcoming LHC experiments; （c） the annihilation contributions play an important role for these considered decays.
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| 关 键 词： | 微扰QCD 衰变 情景预测 不确定性 实验测试 amp 复合体 介子 |
| 收稿时间： | 2009-4-14 |
| 修稿时间： | 2009-4-22 |
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