D-0-(D)over-bar(0) mixing parameter y in the factorization-assisted topological-amplitude approach
文献类型：期刊论文
| 作者 | Jiang, Hua-Yu1; Yu, Fu-Sheng1,2,3; Qin, Qin4,5; Li, Hsiang-nan6; Lu, Cai-Dian5 |
| 刊名 | CHINESE PHYSICS C
 |
| 出版日期 | 2018-05 |
| 卷号 | 42期号:6页码:063101 |
| ISSN号 | 1674-1137 |
| 关键词 | mixing of charmed mesons strong interactions weak interactions decays of charmed mesons |
| DOI | 10.1088/1674-1137/42/6/063101 |
| 英文摘要 | We calculate the D-0-(D) over bar (0) mixing parameter y in the factorization-assisted topological-amplitude (FAT) approach, considering contributions from D-0 -> PP, PV, and VV modes, where P (V) stands for a pseudoscalar (vector) meson. The D-0 -> PP and PV decay amplitudes are extracted in the FAT approach, and the D-0 -> VV decay amplitudes with final states in the longitudinal polarization are estimated via the parameter set for D-0 -> PV. It is found that the VV contribution to y, being of order of 10(-4), is negligible, and that the PP and PV contributions amount only up to y(PP+PV)= (0.21 +/- 0.07)%, a prediction more precise than those previously obtained in the literature, and much lower than the experimental data y(exp)= (0.61 +/- 0.08)%. We conclude that D-0 meson decays into other two-body and multi-particle final states are relevant to the evaluation of y, so it is difficult to understand it fully in an exclusive approach. |
| 资助项目 | DFG[Forschergruppe FOR 1873] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | SCIENCE PRESS |
| WOS记录号 | WOS:000433470900002 |
| 源URL | [http://119.78.100.186/handle/113462/56852]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Yu, Fu-Sheng |
| 作者单位 | 1.Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Gansu, Peoples R China 2.Lanzhou Univ, Res Ctr Hadron & CSR Phys, Lanzhou 730000, Gansu, Peoples R China 3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China 4.Univ Siegen, Nat Wissensch Tech Fak, Theoret Phys 1, Walter Flex Str 3, D-57068 Siegen, Germany 5.Chinese Acad Sci, Inst High Energy Phys, POB 918,4, Beijing 100049, Peoples R China 6.Acad Sinica, Inst Phys, Taipei 11529, Taiwan |
| 推荐引用方式 GB/T 7714 | Jiang, Hua-Yu,Yu, Fu-Sheng,Qin, Qin,et al. D-0-(D)over-bar(0) mixing parameter y in the factorization-assisted topological-amplitude approach[J]. CHINESE PHYSICS C,2018,42(6):063101. |
| APA | Jiang, Hua-Yu,Yu, Fu-Sheng,Qin, Qin,Li, Hsiang-nan,&Lu, Cai-Dian.(2018).D-0-(D)over-bar(0) mixing parameter y in the factorization-assisted topological-amplitude approach.CHINESE PHYSICS C,42(6),063101. |
| MLA | Jiang, Hua-Yu,et al."D-0-(D)over-bar(0) mixing parameter y in the factorization-assisted topological-amplitude approach".CHINESE PHYSICS C 42.6(2018):063101. |
入库方式： OAI收割
来源：近代物理研究所
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