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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
DOI10.1088/1674-1137/42/6/063101
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.

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来源:高能物理研究所

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