Partial wave analysis of J/ψ→pp(-)π~0 and measurement of J/ψ→pp(-)η, pp(-)η

摘要：

Based on 58 million J/ψ data collected with the BES Ⅱ detector at the BEPC, Partial Wave Analysis(PWA) is performed on J/ψ→pp(-)π~0.The new excited baryon N(2065) is confirmed. Clear signals for other N~* states are observed and the corresponding masses, widths and spin-parity are also measured. Processes such as J/ψ→pp(-)η,pp(-)η are also studied and the branching ratios are measured.

关键词： J/ψ Decays PWA Ezcited Baryon states N(2065)

作者: YANG Hong-Xun

作者单位: Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China

会议类型: 国际会议

会议名称: The 12th International Workshop on the Physics Ezcited Nucleon(2009核子共振态物理国际研讨会)

会议地点: 北京

会议语种:英文

页码: 1331-1335

在线出版日期: 2009-04-19（万方平台首次上网日期，不代表论文的发表时间）