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题名: Rescattering effect and near threshold enhancement of p(p)over-bar system
作者: Chen, G. Y. ;  Dong, H. R. ;  Ma, J. P.
刊名: PHYSICAL REVIEW D
出版日期: 2008
卷号: 78, 期号:5, 页码:-
关键词: FINAL-STATE INTERACTION ;  BARYONIUM ;  GLUEBALL ;  X(1835) ;  BES
学科分类: Physics
通讯作者: Chen, GY , Peking Univ, Dept Phys, Beijing 100871, Peoples R China
部门归属: [Chen, GY] Peking Univ, Dept Phys, Beijing 100871, Peoples R China; [Dong, HR; Ma, JP] Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China; [Ma, JP] Acad Sinica, Ctr Theoret Phys, Sci Facil, Beijing 100049, Peoples R China
英文摘要: We study the observed enhancement of a p (p) over bar system near the threshold in the process J/psi -> gamma p (p) over bar and e(+)e(-) -> p (p) over tilde. From early studies the enhancement can be explained by final state interactions, which are in general taken into account with some potential models. In this work, we offer a simple approach within quantum field theory to explain the observed enhancement. We point out that among different final state interactions the rescattering in a N (N) over bar system though exchange of pi is the most important. The effects of the rescattering is completely fixed by the well- known coupling g(pi NN). Our results show that the enhancement in J/psi -> gamma p (p) over bar and e(+)e(-) -> p (p) over bar can be well described with the rescattering effects.
资助者: National Nature Science Foundation of the People
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000259692600043
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5464
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Chen, G. Y.,Dong, H. R.,Ma, J. P.. Rescattering effect and near threshold enhancement of p(p)over-bar system[J]. PHYSICAL REVIEW D,2008,78(5):-.
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