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Observation of the electromagnetic doubly OZI-suppressed decay J/psi -> phi pi(0)
BESIII Collaboration
2015
发表期刊PHYSICAL REVIEW D
卷号91期号:11页码:112001
文章类型Article
摘要Using a sample of 1.31 billion J/psi events accumulated with the BESIII detector at the BEPCII collider, we report the observation of the decay J/psi -> phi pi(0), which is the first evidence for a doubly Okubo-Zweig-Iizuka suppressed electromagnetic J/psi decay. A clear structure is observed in the K+K- mass spectrum around 1.02 GeV/c(2), which can be attributed to interference between J/psi -> phi pi(0) and J/psi -> K+K- pi(0) decays. Due to this interference, two possible solutions are found. The corresponding measured values of the branching fraction of J/psi -> phi pi(0) are [2.94 +/- 0.16(stat) +/- 0.16(syst)] x 10(-6) and [1.24 +/- 0.33(stat) +/- 0.30(syst)] x 10(-7).
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.91.112001
收录类别SCI ; CA
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000355412300001
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228472
专题实验物理中心
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BESIII Collaboration. Observation of the electromagnetic doubly OZI-suppressed decay J/psi -> phi pi(0)[J]. PHYSICAL REVIEW D,2015,91(11):112001.
APA BESIII Collaboration.(2015).Observation of the electromagnetic doubly OZI-suppressed decay J/psi -> phi pi(0).PHYSICAL REVIEW D,91(11),112001.
MLA BESIII Collaboration."Observation of the electromagnetic doubly OZI-suppressed decay J/psi -> phi pi(0)".PHYSICAL REVIEW D 91.11(2015):112001.
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