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Phenomenological study on the (p)over-barN -> (N)over-barN pi pi reactions

文献类型：期刊论文

作者Xu, Hu-Shan2,4,5; Zou, Bing-Song1,2,5; Cao, Xu3,4,5
刊名NUCLEAR PHYSICS A
出版日期2011-07-01
卷号861页码:23-36
关键词Antinucleon-nucleon collisions Meson production Resonance
ISSN号0375-9474
DOI10.1016/j.nuclphysa.2011.05.094
英文摘要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.
WOS关键词MESON-EXCHANGE ; ROPER RESONANCE ; PARTIAL-WAVE ; GEV-C ; PI-N ; MODEL ; COLLISIONS ; CHANNELS
资助项目National Natural Science Foundation of China[10635080] ; National Natural Science Foundation of China[10875133] ; National Natural Science Foundation of China[10821063] ; National Natural Science Foundation of China[10925526]
WOS研究方向Physics
语种英语
WOS记录号WOS:000292717200003
出版者ELSEVIER SCIENCE BV
资助机构National Natural Science Foundation of China
源URL[http://119.78.100.186/handle/113462/34402]  
专题近代物理研究所_实验物理中心
通讯作者Cao, Xu
作者单位1.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
2.Natl Lab Heavy Ion Collis, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
5.Chinese Acad Sci, Theoret Phys Ctr Sci Facil, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Xu, Hu-Shan,Zou, Bing-Song,Cao, Xu. Phenomenological study on the (p)over-barN -> (N)over-barN pi pi reactions[J]. NUCLEAR PHYSICS A,2011,861:23-36.
APA Xu, Hu-Shan,Zou, Bing-Song,&Cao, Xu.(2011).Phenomenological study on the (p)over-barN -> (N)over-barN pi pi reactions.NUCLEAR PHYSICS A,861,23-36.
MLA Xu, Hu-Shan,et al."Phenomenological study on the (p)over-barN -> (N)over-barN pi pi reactions".NUCLEAR PHYSICS A 861(2011):23-36.

入库方式： OAI收割

来源：近代物理研究所

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