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题名: Could the X(3915) and the X(3930) Be the Same Tensor State?
作者: Zhou, ZY;  Xiao, ZG;  Zhou, HQ
刊名: PHYSICAL REVIEW LETTERS
出版日期: 2015
卷号: 115, 期号:2, 页码:22001
学科分类: Physics
DOI: http://dx.doi.org/10.1103/PhysRevLett.115.022001
通讯作者: Xiao, ZG (reprint author), Univ Sci & Technol China, Interdisciplinary Ctr Theoret Study, Hefei 230026, Anhui, Peoples R China.
文章类型: Article
英文摘要: By using a combined amplitude analysis of the gamma gamma -> D (D) over bar and gamma gamma -> J/psi omega data, we demonstrate that the X(3915), which is quoted as a J(PC) = 0(++) state in the Particle Data Group table, is favored by the data to be a J(PC) = 2(++) state appearing in both channels, which means that the X(3915) and the X(3930) can be regarded as the same J(PC) = 2(++) state. Meanwhile, the data also prefer a large helicity-0 contribution of this tensor resonance to the amplitudes instead of the helicity-2 dominance assumed by BABAR, which may indicate a sizable portion of non-q (q) over bar components in this state. Identifying the X(3915) with the X(3930) and abandoning the helicity-2 dominance for this tensor state are helpful for the further understandings of the properties of this state and also of the mysterious "XYZ" charmoniumlike resonances.
类目[WOS]: Physics, Multidisciplinary
关键词[WOS]: QUARK-MODEL ;  CHARMONIUM ;  DECAYS
收录类别: SCI
项目资助者: National Natural Science Foundation of China [11375044, 11105138, 11235010] ;  Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry ;  Fundamental Research Funds for the Central Universities [WK2030040020]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/20932
Appears in Collections:理论物理所2015年知识产出_期刊论文

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Recommended Citation:
Zhou, ZY,Xiao, ZG,Zhou, HQ. Could the X(3915) and the X(3930) Be the Same Tensor State?[J]. PHYSICAL REVIEW LETTERS,2015,115(2):22001.
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