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题名: Near threshold enhancement of p(p)over-bar system and p(p)over-bar elastic scattering
作者: Chen, G. Y. ;  Dong, H. R. ;  Ma, J. P.
刊名: PHYSICS LETTERS B
出版日期: 2010
卷号: 692, 期号:2, 页码:136-142
关键词: NUCLEON-NUCLEON-SCATTERING ;  FINAL-STATE INTERACTION ;  EFFECTIVE-FIELD THEORY ;  CHIRAL LAGRANGIANS ;  FORCES ;  BARYONIUM ;  GLUEBALL ;  X(1835) ;  DECAY ;  BES
学科分类: Physics
通讯作者: Ma, JP , Acad Sinica, Inst Theoret Phys, Beijing 100190, Peoples R China
部门归属: [Dong, HR; Ma, JP] Acad Sinica, Inst Theoret Phys, Beijing 100190, Peoples R China; [Chen, GY] Peking Univ, Dept Phys, Beijing 100871, Peoples R China; [Ma, JP] Acad Sinica, Theoret Phys Ctr Sci Facil, Beijing 100049, Peoples R China
英文摘要: The observed enhancement of p (p) over bar -production near the threshold in radiative decays of integral/psi and e(+)e(-)-annihilations can be explained with final state interactions among the produced N (N) over bar system, where the enhancement is essentially determined by N (N) over bar elastic scattering amplitudes. We propose to use an effective theory for interactions in an N (N) over bar system near its threshold. The effective theory is similar to the well-known one for interactions in an NN system but with distinctions. It is interesting to note that in the effective theory some corrections to scattering amplitudes at tree-level can systematically be summed into a simple form. These corrections are from rescattering processes. With these corrected amplitudes we are able to describe the enhancement near the threshold in radiative decays of integral/psi and e(+)e(-)-annihilations, and the p (p) over bar elastic scattering near the threshold. (C) 2010 Elsevier B.V. All rights reserved.
资助者: National Nature Science Foundation of P.R. China[10721063, 10575126, 10975169]
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000282116900011
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5060
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.. Near threshold enhancement of p(p)over-bar system and p(p)over-bar elastic scattering[J]. PHYSICS LETTERS B,2010,692(2):136-142.
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