Phenomenological analysis of the double-pion production in nucleon-nucleon collisions up to 2.2 GeV
Cao, X; Zou BS(邹冰松); Zou, BS; Xu, HS
刊名PHYSICAL REVIEW C
2010
卷号81期号:6页码:65201
学科分类Physics
DOI10.1103/PhysRevC.81.065201
通讯作者[Cao, Xu ; Xu, Hu-Shan] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China ; [Zou, Bing-Song] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; [Cao, Xu ; Zou, Bing-Song ; Xu, Hu-Shan] Chinese Acad Sci, Theoret Phys Ctr Sci Facil, Beijing 100049, Peoples R China ; [Zou, Bing-Song ; Xu, Hu-Shan] Natl Lab Heavy Ion Collis, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China ; [Cao, Xu] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
文章类型Article
英文摘要With an effective Lagrangian approach, we analyze several NN -> NN pi pi channels by including various resonances with mass up to 1.72 GeV. For the channels with the pion pair of isospin zero, we confirm the dominance of N*(1440) -> N sigma in the near-threshold region. At higher energies and for channels with the final pion pair of isospin one, we find large contributions from N*(1440) -> Delta pi, double-Delta, Delta(1600) -> N*(1440)pi, Delta(1600) -> Delta pi and Delta(1620) -> Delta pi. There are also sizable contributions from Delta -> Delta pi, Delta -> N pi, N -> Delta pi, and nucleon pole at energies close to the threshold. We give a good reproduction to the total cross sections up to beam energies of 2.2 GeV except for the pp -> pp pi(0)pi(0) channel at energies around 1.1 GeV and our results agree with the existing data of differential cross sections of pp -> pp pi(+)p pi(-), pp -> nn pi(+)pi(+), and pp -> pp pi(0)pi(0) which are measured at CELSIUS and COSY.
类目[WOS]Physics, Nuclear
研究领域[WOS]Physics
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语种英语
WOS记录号WOS:000278399700005
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被引频次:38[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/311005/240735
专题中国科学院高能物理研究所_理论物理室_期刊论文
作者单位中国科学院高能物理研究所
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Cao, X,Zou BS,Zou, BS,et al. Phenomenological analysis of the double-pion production in nucleon-nucleon collisions up to 2.2 GeV[J]. PHYSICAL REVIEW C,2010,81(6):65201.
APA Cao, X,邹冰松,Zou, BS,&Xu, HS.(2010).Phenomenological analysis of the double-pion production in nucleon-nucleon collisions up to 2.2 GeV.PHYSICAL REVIEW C,81(6),65201.
MLA Cao, X,et al."Phenomenological analysis of the double-pion production in nucleon-nucleon collisions up to 2.2 GeV".PHYSICAL REVIEW C 81.6(2010):65201.
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