Recent N* results from J/psi decays | |
BES Callaboration | |
刊名 | NUCLEAR PHYSICS A
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2000 | |
卷号 | 675期号:1--2页码:189C-192C |
关键词 | QUARK-MODEL ETA-PHOTOPRODUCTION BARYONS THRESHOLD |
通讯作者 | Li, HB (reprint author), Acad Sinica, Inst High Energy Phys, POB 918 1, Beijing 100039, Peoples R China. |
英文摘要 | Based on 7.8 million J/psi, events collected by BES at BEPC, the events for J/psi --> p (p) over bar pi(0) and p (p) over bar eta have been selected and reconstructed. Clear peaks are observed around 1480 MeV in p eta(0)((p) over bar pi(0)) invariant mass spectrum and near the threshold for eta production in p eta((p) over bar eta) invariant mass spectrum. A partial wave analysis of J/psi --> p (p) over bar eta data has been performed. Two J(P) = 1/2(-) resonances are observed with mass and width (M, Gamma) at (1540(-17)(+15), 178(-22)(+20)) (1648(-16)(+18), 150)MeV, and are considered to be the nucleon resonances S-11(1535) and S-11(1650) respectively. |
学科主题 | Physics |
类目[WOS] | Physics, Nuclear |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000088426600034 |
公开日期 | 2016-02-25 |
内容类型 | 期刊论文 |
源URL | [http://ir.ihep.ac.cn/handle/311005/212059] ![]() |
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. Recent N* results from J/psi decays[J]. NUCLEAR PHYSICS A,2000,675(1--2):189C-192C. |
APA | BES Callaboration.(2000).Recent N* results from J/psi decays.NUCLEAR PHYSICS A,675(1--2),189C-192C. |
MLA | BES Callaboration."Recent N* results from J/psi decays".NUCLEAR PHYSICS A 675.1--2(2000):189C-192C. |
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