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题名: Understanding the property of eta(1405/1475) in the J/psi radiative decay
作者: Wu, XG ;  Wu, JJ ;  Zhao, Q ;  Zou, BS
刊名: PHYSICAL REVIEW D
出版日期: 2013
卷号: 87, 期号:1, 页码:14023
关键词: PARTIAL-WAVE ANALYSIS
学科分类: Physics
通讯作者: Wu, XG (reprint author), Chinese Acad Sci, Inst High Energy Phys, Theoret Phys Ctr Sci Facil, Beijing 100049, Peoples R China.
部门归属: [Wu, Xiao-Gang; Wu, Jia-Jun; Zhao, Qiang; Zou, Bing-Song] Chinese Acad Sci, Inst High Energy Phys, Theoret Phys Ctr Sci Facil, Beijing 100049, Peoples R China; [Wu, Jia-Jun] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA; [Zou, Bing-Song] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
英文摘要: In this work we make a systematic analysis of the correlated processes J/psi -> gamma eta(1440)/f(1)(1420) with eta(1440)/f(1)(1420) -> K (K) over bar pi, eta pi pi and 3 pi, where the role played by the so-called "triangle singularity mechanism" (TSM) is clarified. Our results agree well with the experimental data and suggest a small fraction of f(1)(1420) contributions in these processes. This study confirms our conclusion [Wu et al. Phys. Rev. Lett. 108, 081803 (2012)] that the dynamic feature of the TSM can be recognized by the strong narrow peak observed in the pi pi invariant mass spectrum of eta(1440) -> 3 pi with anomalously large isospin violations. Nevertheless, we explicitly demonstrate that the TSM can produce obvious peak position shifts for the same eta(1440) or f(1)(1420) state in different decay channels. This is strong evidence that the eta(1405) and eta(1475) are actually the same state, i.e., eta(1440). We also make an analysis of the radiative decays of eta(1440) -> gamma V (V = phi, rho(0), or omega), which shows that such a one-state prescription seems not to have a conflict with the so-far existing experimental data. Our analysis may shed light on the long-standing puzzling question about the nature of eta(1405) and eta(1475). DOI: 10.1103/PhysRevD.87.014023
资助者: National Natural Science Foundation of China [11035006, 11121092]; DFG; NSFC [CRC110]; Chinese Academy of Sciences [KJCX2-EW-N01]; Ministry of Science and Technology of China [2009CB825200]; U.S. Department of Energy [DE-AC02-06CH11357]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000314095600005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15431
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Recommended Citation:
Wu, XG,Wu, JJ,Zhao, Q,et al. Understanding the property of eta(1405/1475) in the J/psi radiative decay[J]. PHYSICAL REVIEW D,2013,87(1):14023.
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