Observation of eta(c) decay into Sigma(+)(Sigma)over-bar(-) and (sic)(-)((sic))over bar (+) final states

	Observation of eta(c) decay into Sigma(+)(Sigma)over-bar(-) and (sic)(-)((sic))over bar (+) final states
	BESIII Callaboration
刊名	PHYSICAL REVIEW D
	2013
卷号	87 期号:1
关键词	FORBIDDEN CHARMONIUM DECAYS MASS CORRECTIONS QCD MODEL PAIRS
通讯作者	Ablikim, M (reprint author), Inst High Energy Phys, Beijing 100049, Peoples R China.
英文摘要	Using a data sample of 2.25 x 10(8) J/psi events collected with the BESIII detector, we present the first observation of the decays of eta(c) mesons to Sigma(+)(Sigma) over bar (-) and (sic)(-)<((sic))over bar>(+) .The branching fractions are measured to be (2.11 +/- 0.28(stat) +/- 0.18(syst) +/- 0.50(PDG)) x 10(-3) and (0.89 +/- 0.16(stat) +/- 0.08(syst) +/- 0.21(PDG)) x 10(-3) for eta(c) -> Sigma(+)(Sigma) over bar (-) and (sic)(-)<((sic))over bar>(+) , respectively. These branching fractions provide important information on the helicity selection rule in charmonium- decay processes. DOI: 10.1103/PhysRevD.87.012003
学科主题	Astronomy & Astrophysics; Physics
类目[WOS]	Astronomy & Astrophysics ; Physics, Particles & Fields
收录类别	SCI
语种	英语
WOS记录号	WOS:000313032500001
公开日期	2016-02-26
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/213419]
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 Callaboration. Observation of eta(c) decay into Sigma(+)(Sigma)over-bar(-) and (sic)(-)((sic))over bar (+) final states[J]. PHYSICAL REVIEW D,2013,87(1).
APA	BESIII Callaboration.(2013).Observation of eta(c) decay into Sigma(+)(Sigma)over-bar(-) and (sic)(-)((sic))over bar (+) final states.PHYSICAL REVIEW D,87(1).
MLA	BESIII Callaboration."Observation of eta(c) decay into Sigma(+)(Sigma)over-bar(-) and (sic)(-)((sic))over bar (+) final states".PHYSICAL REVIEW D 87.1(2013).