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 | Lv CD(吕才典); Qin, Q; Li, HN; Lu, CD; Jiang, HY; Yu, FS; Qin Z(秦溱) |
刊名 | CHINESE PHYSICS C |
出版日期 | 2018 |
卷号 | 42期号:6页码:63101 |
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 |
文献子类 | Article |
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. |
电子版国际标准刊号 | 2058-6132 |
WOS研究方向 | Physics |
语种 | 英语 |
CSCD记录号 | CSCD:6252777 |
WOS记录号 | WOS:000433470900002 |
源URL | [http://ir.ihep.ac.cn/handle/311005/285978] |
专题 | 高能物理研究所_理论物理室 |
作者单位 | 中国科学院高能物理研究所 |
推荐引用方式 GB/T 7714 | Lv CD,Qin, Q,Li, HN,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):63101. |
APA | 吕才典.,Qin, Q.,Li, HN.,Lu, CD.,Jiang, HY.,...&秦溱.(2018).D-0-(D)over-bar(0) mixing parameter y in the factorization-assisted topological-amplitude approach.CHINESE PHYSICS C,42(6),63101. |
MLA | 吕才典,et al."D-0-(D)over-bar(0) mixing parameter y in the factorization-assisted topological-amplitude approach".CHINESE PHYSICS C 42.6(2018):63101. |
入库方式: OAI收割
来源:高能物理研究所
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