中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Evidence for psi ' Decays into gamma pi(0) and gamma eta

文献类型:期刊论文

作者BESIII Collaboration
刊名PHYSICAL REVIEW LETTERS
出版日期2010
卷号105期号:26
关键词RADIATIVE DECAYS QUANTUM CHROMODYNAMICS PSEUDOSCALAR MESONS EXCLUSIVE PROCESSES PHOTON STATES QCD
通讯作者Ablikim, M (reprint author), Inst High Energy Phys, Beijing 100049, Peoples R China.
英文摘要The decays psi' -> gamma pi(0), gamma eta and gamma eta' are studied using data collected with the BESIII detector at the BEPCII e(+)e(-) collider. The processes psi' -> gamma pi(0) and psi' -> gamma eta are observed for the first time with signal significances of 4.6 sigma and 4.3 sigma, respectively. The branching fractions are determined to be B(psi' -> gamma pi(0)) = (1.58 +/- 0.40 +/- 0.13) X 10(-6), B(psi' -> gamma eta) = (1.38 +/- 0.48 +/- 0.09 +/- 10(-6)) and B(psi' -> gamma eta') = (126 +/- 3 +/- 8) X 10(-6), where the first errors are statistical and the second ones systematic.
学科主题Physics
类目[WOS]Physics, Multidisciplinary
收录类别SCI
语种英语
WOS记录号WOS:000286754700003
公开日期2016-02-26
源URL[http://ir.ihep.ac.cn/handle/311005/213005]  
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. Evidence for psi ' Decays into gamma pi(0) and gamma eta[J]. PHYSICAL REVIEW LETTERS,2010,105(26).
APA BESIII Collaboration.(2010).Evidence for psi ' Decays into gamma pi(0) and gamma eta.PHYSICAL REVIEW LETTERS,105(26).
MLA BESIII Collaboration."Evidence for psi ' Decays into gamma pi(0) and gamma eta".PHYSICAL REVIEW LETTERS 105.26(2010).

入库方式: OAI收割

来源:高能物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。