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Chen, G. Y.; Dong, H. R.; Ma, J. P.; Ma, JP , Acad Sinica, Inst Theoret Phys, Beijing 100190, Peoples R China
Near threshold enhancement of p(p)over-bar system and p(p)over-bar elastic scattering
Source PublicationPHYSICS LETTERS B
KeywordNucleon-nucleon-scattering Final-state Interaction Effective-field Theory Chiral Lagrangians Forces Baryonium Glueball x(1835) Decay Bes
AbstractThe 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.
2010
ISSN0370-2693
Volume692Issue:2Pages:136-142
Subject AreaPhysics
Indexed BySCI
Funding OrganizationNational Nature Science Foundation of P.R. China[10721063, 10575126, 10975169] ; National Nature Science Foundation of P.R. China[10721063, 10575126, 10975169] ; National Nature Science Foundation of P.R. China[10721063, 10575126, 10975169] ; National Nature Science Foundation of P.R. China[10721063, 10575126, 10975169]
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Cited Times:21[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/5060
Collection理论物理所科研产出_SCI论文
Corresponding AuthorMa, JP , Acad Sinica, Inst Theoret Phys, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Chen, G. Y.,Dong, H. R.,Ma, J. P.,et al. 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.
APA Chen, G. Y.,Dong, H. R.,Ma, J. P.,&Ma, JP , Acad Sinica, Inst Theoret Phys, Beijing 100190, Peoples R China.(2010).Near threshold enhancement of p(p)over-bar system and p(p)over-bar elastic scattering.PHYSICS LETTERS B,692(2),136-142.
MLA Chen, G. Y.,et al."Near threshold enhancement of p(p)over-bar system and p(p)over-bar elastic scattering".PHYSICS LETTERS B 692.2(2010):136-142.
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