Study of N* production from J/psi -> p(p)over-bar eta

	*Study of N production from J/psi -> p(p)over-bar eta**
	BES Callaboration
刊名	PHYSICS LETTERS B
	2001
卷号	510 期号:1--4 页码:75-82
关键词	QUARK-MODEL ETA-PHOTOPRODUCTION BARYONS ELECTROPRODUCTION PI-N->ETA-N THRESHOLD
通讯作者	Bai, JZ (reprint author), Inst High Energy Phys, Beijing 100039, Peoples R China.
英文摘要	Data are presented on the reaction J/psi --> > using 7.8 x 10(6) J/psi triggers collected by the BEjing Spectrometer (BES). A partial wave analysis is performed. A clear enhancement near the p eta((p) over bar eta) threshold is observed. It is fitted with a J(P) = 1/2(-) resonance with mass M = 1530 +/- 10 MeV and width Gamma = 95 +/- 25 MeV. In addition, there is a peak around 1650 MeV with J(P) = 1/2(-) preferred also, fitted with M = 1637 +/- 20 MeV and Gamma = 145(-45)(+80) MeV. These two N* resonances are believed to be the two well established states, S-11(1535) and S-11(1650). respectively. It is the first partial wave study of the production of these resonances from J/psi decays. (C) 2001 Published by Elsevier Science B.V.
学科主题	Physics
类目[WOS]	Physics, Multidisciplinary
收录类别	SCI
语种	英语
WOS记录号	WOS:000169542300008
公开日期	2016-02-25
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/212120]
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. Study of N* production from J/psi -> p(p)over-bar eta[J]. PHYSICS LETTERS B,2001,510(1--4):75-82.
APA	BES Callaboration.(2001).Study of N* production from J/psi -> p(p)over-bar eta.PHYSICS LETTERS B,510(1--4),75-82.
MLA	BES Callaboration."Study of N* production from J/psi -> p(p)over-bar eta".PHYSICS LETTERS B 510.1--4(2001):75-82.