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Phenomenological study on the (p)over-barN -> (N)over-barN pi pi reactions
Cao, X; Zou BS(邹冰松); Zou, BS; Xu, HS
2011
发表期刊NUCLEAR PHYSICS A
卷号861期号:1页码:#REF!
通讯作者Cao, X (reprint author), Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China.
摘要We extend our recent phenomenological study of pN -> NN pi pi reactions to the (p) over barN -> (N) over barN pi pi reactions for anti-proton beam momenta up to 3.0 GeV within an effective Lagrangian approach. The contribution of N*(1440) with its N sigma decay mode is found to be dominant at the energies close to threshold for (N) over barN pi(+)pi(-) and (N) over barN pi(0)pi(0) channels. At higher energies or for p (n) over bar pi(-)pi(-) and (N) over barN pi(+/-)pi(0) channels where N*(1440) -> N sigma mode cannot contribute, large contributions from double-Delta, Delta(1600) -> N*(1440)pi, Delta(1600) -> Delta pi and Delta(1620) -> Delta pi are found. In the near-threshold region, sizeable contributions from Delta -> Delta pi, Delta -> N pi, N -> Delta pi and nucleon pole are also indicated. Although these results are similar to those for pN -> NN pi pi reactions, the antinucleon nucleon collisions are shown to be complementary to the nucleon nucleon collisions and may even have advantages in some aspects. The PANDA/FAIR experiment is suggested to be an excellent place for studying the properties of relevant N* and Delta* resonances. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.
文章类型Article
关键词Antinucleon-nucleon collisions Meson production Resonance
学科领域Physics
DOI10.1016/j.nuclphysa.2011.05.094
收录类别SCI
WOS类目Physics, Nuclear
WOS记录号WOS:000292717200003
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被引频次:4[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/311005/225559
专题理论物理室
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Cao, X,Zou BS,Zou, BS,et al. Phenomenological study on the (p)over-barN -> (N)over-barN pi pi reactions[J]. NUCLEAR PHYSICS A,2011,861(1):#REF!.
APA Cao, X,邹冰松,Zou, BS,&Xu, HS.(2011).Phenomenological study on the (p)over-barN -> (N)over-barN pi pi reactions.NUCLEAR PHYSICS A,861(1),#REF!.
MLA Cao, X,et al."Phenomenological study on the (p)over-barN -> (N)over-barN pi pi reactions".NUCLEAR PHYSICS A 861.1(2011):#REF!.
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