Anomalous line shape of the cross section for e(+)e(-)-> hadrons in the center-of-mass energy region between 3.650 and 3.872 GeV

	Anomalous line shape of the cross section for e(+)e(-)-> hadrons in the center-of-mass energy region between 3.650 and 3.872 GeV
	BES Callaboration
刊名	PHYSICAL REVIEW LETTERS
	2008
卷号	101 期号:10
关键词	BRANCHING FRACTION J/PSI-PI(+)PI(-)
通讯作者	Ablikim, M (reprint author), Inst High Energy Phys, Beijing 100049, Peoples R China.
英文摘要	We observe an obvious anomalous line shape of the e(+)e(-)-> hadrons total cross sections in the energy region between 3.700 and 3.872 GeV. It is inconsistent with the explanation for only one simple psi(3770) resonance with a statistical significance of 7 sigma. The anomalous line shape may be explained by two possible enhancements of the inclusive hadron production near the center-of-mass energies of 3.764 and 3.779 GeV, indicating that either there is likely a new structure in addition to the psi(3770) resonance around 3.773 GeV, or there are some physics effects reflecting the D (D) over bar production dynamics.
学科主题	Physics
类目[WOS]	Physics, Multidisciplinary
收录类别	SCI
语种	英语
WOS记录号	WOS:000258975100015
公开日期	2016-02-26
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/212869]
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	BES Callaboration. Anomalous line shape of the cross section for e(+)e(-)-> hadrons in the center-of-mass energy region between 3.650 and 3.872 GeV[J]. PHYSICAL REVIEW LETTERS,2008,101(10).
APA	BES Callaboration.(2008).Anomalous line shape of the cross section for e(+)e(-)-> hadrons in the center-of-mass energy region between 3.650 and 3.872 GeV.PHYSICAL REVIEW LETTERS,101(10).
MLA	BES Callaboration."Anomalous line shape of the cross section for e(+)e(-)-> hadrons in the center-of-mass energy region between 3.650 and 3.872 GeV".PHYSICAL REVIEW LETTERS 101.10(2008).