Improved measurements of branching fractions for eta(c) -> phi phi and omega phi

doi:10.1103/PhysRevD.95.092004

	Improved measurements of branching fractions for eta(c) -> phi phi and omega phi
	BESIII Collaboration
刊名	PHYSICAL REVIEW D
	2017
卷号	95 期号:9 页码:92004
ISSN号	2470-0010
DOI	10.1103/PhysRevD.95.092004
文献子类	Article
英文摘要	Using (223.7 +/- 1.4) x 10(6) J / Psi events accumulated with the BESIII detector, we study eta(c) decays to phi phi and omega phi final states. The branching fraction of n(c) -> phi phi is measured to be Br(eta(c) -> phi phi) = (2.5 +/- 0(-0.7)(+0.3) +/- 0.6) X 10(-3,) where the first uncertainty is statistical, the second is systematic, and the third is from the uncertainty of Br(J / Psi -> gamma eta(C)). No significant signal for the double Okubo-Zweig-Iizuka suppressed decay of eta(c) -> omega phi is observed, and the upper limit on the branching fraction is determined to be Br(eta(c) -> omega phi) < 2.5 x 10(-4) at the 90% confidence level.
电子版国际标准刊号	2470-0029
WOS关键词	HELICITY-COUPLING AMPLITUDES ; C-DECAYS ; MESONS ; SPIN
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
WOS记录号	WOS:000401232200001
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/284408]
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. Improved measurements of branching fractions for eta(c) -> phi phi and omega phi[J]. PHYSICAL REVIEW D,2017,95(9):92004.
APA	BESIII Collaboration.(2017).Improved measurements of branching fractions for eta(c) -> phi phi and omega phi.PHYSICAL REVIEW D,95(9),92004.
MLA	BESIII Collaboration."Improved measurements of branching fractions for eta(c) -> phi phi and omega phi".PHYSICAL REVIEW D 95.9(2017):92004.