Productions of X(1835) as baryonium with sizable gluon content
Ding, GJ; Ping RG(平荣刚); Ping, RG; Yan, ML
刊名EUROPEAN PHYSICAL JOURNAL A
2006
卷号28期号:3页码:351-360
学科分类Physics
DOI10.1140/epja/i2006-10055-3
通讯作者Univ Sci & Technol China, Interdisciplinary Ctr Theoret Study, Hefei 230026, Anhui, Peoples R China ; Inst High Energy Phys, Beijing 100049, Peoples R China
文章类型Article
英文摘要X(1835) has been treated as a baryonium with sizable gluon content, and to be almost flavor singlet. This picture allows us to rationally understand X(1835)production in J/psi radiative decays, and its large couplings with p (p) over bar, eta'pi pi. The processes Y(1S) --> gamma X (1835) and J/psi --> omega (1835) have been examined. It has been found that Br(Y(1S) --> gamma X(1835))Br(X(1835) --> p (p) over bar)<6.45 x 10(-7), which is compatible with CLEO's recent experimental result (Phys. Rev. D 73, 032001 (2006) hep-ex/0510015). The branching fractions Br (J/psi --> omega X (1835)), Br (J/psi --> rho X (1835)) with X (1835) --> p (p) over bar and X (1835) --> eta'pi(+)pi(-) have been estimated by the quark-pair creation model. We show that they are heavily suppressed, so the signal of X(1835) is very difficult, if not impossible, to be observed in these processes. The experimental checks for these estimations are expected. The existence of the baryonium nonet is conjectured, and a model-independent derivation of their production branching fractions is presented.
类目[WOS]Physics, Nuclear ; Physics, Particles & Fields
研究领域[WOS]Physics
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语种英语
WOS记录号WOS:000239301200012
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被引频次:21[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/237103
专题中国科学院高能物理研究所_理论物理室_期刊论文
中国科学院高能物理研究所_实验物理中心
作者单位中国科学院高能物理研究所
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Ding, GJ,Ping RG,Ping, RG,et al. Productions of X(1835) as baryonium with sizable gluon content[J]. EUROPEAN PHYSICAL JOURNAL A,2006,28(3):351-360.
APA Ding, GJ,平荣刚,Ping, RG,&Yan, ML.(2006).Productions of X(1835) as baryonium with sizable gluon content.EUROPEAN PHYSICAL JOURNAL A,28(3),351-360.
MLA Ding, GJ,et al."Productions of X(1835) as baryonium with sizable gluon content".EUROPEAN PHYSICAL JOURNAL A 28.3(2006):351-360.
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