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Rescattering effect and near threshold enhancement of p(p)over-bar system
Chen, G. Y.; Dong, H. R.; Ma, J. P.; Chen, GY , Peking Univ, Dept Phys, Beijing 100871, Peoples R China
2008
发表期刊PHYSICAL REVIEW D
ISSN1550-7998
卷号78期号:5页码:-
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.
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
关键词Final-state Interaction Baryonium Glueball x(1835) Bes
学科领域Physics
资助者National Nature Science Foundation of the People ; National Nature Science Foundation of the People ; National Nature Science Foundation of the People ; National Nature Science Foundation of the People
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收录类别SCI
资助者National Nature Science Foundation of the People ; National Nature Science Foundation of the People ; National Nature Science Foundation of the People ; National Nature Science Foundation of the People
WOS记录号WOS:000259692600043
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被引频次:13[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5464
专题理论物理所1978-2010年知识产出
通讯作者Chen, GY , Peking Univ, Dept Phys, Beijing 100871, Peoples R China
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GB/T 7714
Chen, G. Y.,Dong, H. R.,Ma, J. P.,et al. Rescattering effect and near threshold enhancement of p(p)over-bar system[J]. PHYSICAL REVIEW D,2008,78(5):-.
APA Chen, G. Y.,Dong, H. R.,Ma, J. P.,&Chen, GY , Peking Univ, Dept Phys, Beijing 100871, Peoples R China.(2008).Rescattering effect and near threshold enhancement of p(p)over-bar system.PHYSICAL REVIEW D,78(5),-.
MLA Chen, G. Y.,et al."Rescattering effect and near threshold enhancement of p(p)over-bar system".PHYSICAL REVIEW D 78.5(2008):-.
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