| Study of W-Exchange Mode D0 → ФK0 |
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| 引用本文： | DU Dong-Sheng,LI Ying,Lü Cai-Dian.Study of W-Exchange Mode D0 → ФK0[J].中国物理快报,2006,23(8):2038-2041. |
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| 作者姓名： | DU Dong-Sheng LI Ying Lü Cai-Dian |
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| 作者单位： | Institute of High Energy Physics, Chinese Academy of Sciences, PO Box 918（4）, Beijing 100049 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant Nos 10475085 and 10375073. |
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| 摘 要： | We calculate the branching ratio of rare decay D^0→ФK using the perturbative QCD factorization approach based on kT factorization. Our result shows this branching ratio is （8.7 ± 1.4） x 10^-3, which is consistent with experimental data. We hope that the CLEO-C and BES-Ⅲ can measure it more accurately, which will help us to understand QCD dynamics and D meson weak decays.
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| 关 键 词： | W交换模式 分歧比率 因子分解 QCD动力学 理论物理 |
| 收稿时间： | 2006-03-15 |
| 修稿时间： | 2006-03-15 |
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