| Non-factorizable contributions in D0→π+π- decay |
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| 引用本文： | 吴向尧,尹新国,郭义庆. Non-factorizable contributions in D0→π+π- decay[J]. 中国物理, 2004, 13(4): 469-472 |
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| 作者姓名： | 吴向尧 尹新国 郭义庆 |
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| 作者单位： | Department of Physics, Huaibei Coal Industry Teacher's College, Huaibei 235000, China; Institute of Physics, Nankai University, Tianjin 300071, China;Department of Physics, Huaibei Coal Industry Teacher's College, Huaibei 235000, China;Institute of High Energy Physics, Beijing 100039, China |
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| 基金项目： | Project supported by the Natural Science Foundation of Department of Education, Anhui Province, China (Grant No 2001kj200zc). |
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| 摘 要： | We have analyzed the D^0→π^+π^- decay with α_s corrections in quantum chromodynamic (QCD) factorization and with the soft-gluon corrections in the light cone QCD sum rules. The soft-gluon effects are firstly calculated in the decay channel. The results show that once the factorization contributions, the α_s corrections, and the soft-gluon effects are all considered, we can satisfactorily explain the experimental data in the decay channel.
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| 关 键 词： | D介子衰变 软胶子作用 高能物理学 四夸克操作 量子色动力学 |
| 收稿时间： | 2003-06-06 |
Non-factorizable contributions in D0→π+π- decay |
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| Wu Xiang-Yao,Yin Xin-Guo and Guo Yi-Qing. Non-factorizable contributions in D0→π+π- decay[J]. Chinese Physics, 2004, 13(4): 469-472 |
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| Authors: | Wu Xiang-Yao Yin Xin-Guo Guo Yi-Qing |
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| Affiliation: | Department of Physics, Huaibei Coal Industry Teacher's College, Huaibei 235000, China; Department of Physics, Huaibei Coal Industry Teacher's College, Huaibei 235000, China; Institute of Physics, Nankai University, Tianjin 300071, China; Institute of High Energy Physics, Beijing 100039, China |
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| Abstract: | We have analyzed the D^0→π^+π^- decay with α_s corrections in quantum chromodynamic (QCD) factorization and with the soft-gluon corrections in the light cone QCD sum rules. The soft-gluon effects are firstly calculated in the decay channel. The results show that once the factorization contributions, the α_s corrections, and the soft-gluon effects are all considered, we can satisfactorily explain the experimental data in the decay channel. |
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| Keywords: | D meson decay soft-gluon effects branching ratio |
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