Precision Study of eta ' -> gamma pi(+) pi(-) Decay Dynamics | |
BESIII Collaboration | |
刊名 | PHYSICAL REVIEW LETTERS
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2018 | |
卷号 | 120期号:24页码:242003 |
ISSN号 | 0031-9007 |
DOI | 10.1103/PhysRevLett.120.242003 |
文献子类 | Article |
英文摘要 | Using a low background data sample of 9.7 x 10(5) J/psi -> gamma eta',eta' -> gamma pi(+)pi(-) events, which are 2 orders of magnitude larger than those from the previous experiments, recorded with the BESIII detector at BEPCII, the decay dynamics of eta' -> gamma pi(+)pi(-) are studied with both model-dependent and model-independent approaches. The contributions of. and the rho(770)-omega interference are observed for the first time in the decays eta' -> gamma pi(+)pi(-) in both approaches. Additionally, a contribution from the box anomaly or the rho(1450) resonance is required in the model-dependent approach, while the process specific part of the decay amplitude is determined in the model-independent approach. |
电子版国际标准刊号 | 1079-7114 |
WOS关键词 | INITIAL-STATE RADIATION ; KLOE DETECTOR ; CROSS-SECTION ; FORM-FACTOR ; RHO-MESON ; COLLISIONS ; WIDTH ; PI(+)PI(-)) ; ETA'(958) ; E(+)E(-) |
WOS研究方向 | Physics |
语种 | 英语 |
WOS记录号 | WOS:000435336200004 |
内容类型 | 期刊论文 |
源URL | [http://ir.ihep.ac.cn/handle/311005/286044] ![]() |
专题 | 高能物理研究所_实验物理中心 |
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 | BESIII Collaboration. Precision Study of eta ' -> gamma pi(+) pi(-) Decay Dynamics[J]. PHYSICAL REVIEW LETTERS,2018,120(24):242003. |
APA | BESIII Collaboration.(2018).Precision Study of eta ' -> gamma pi(+) pi(-) Decay Dynamics.PHYSICAL REVIEW LETTERS,120(24),242003. |
MLA | BESIII Collaboration."Precision Study of eta ' -> gamma pi(+) pi(-) Decay Dynamics".PHYSICAL REVIEW LETTERS 120.24(2018):242003. |
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