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Magnetic Moments and Electromagnetic Radii of Nucleon and △(1232) in an Extended Goldstone-Boson-Exchange Model
He J(何军); Dong YB(董宇兵)
2005
发表期刊理论物理通讯(英文版)
期号7页码:139-146
通讯作者何军
摘要We derive the exchange currents of pseudoscalar, vector, and scalar mesons from Feynman diagrams, and use them to calculate the magnetic form factors of nucleon and △(1232). The magnetic moments and electromagnetic radii are obtained by using those form factors and the parameters determined from the masses of nucleon and △(1232).We find the magnetic moments and electromagnetic radii of nucleon and △(1232) can be produced very well in the extended Goldstone-Boson-exchange model in which all of pseudoscalar, vector, and scalar meson nonet are included.The magnetic moments of △(1232) are closer to experiment values and results from lattice calculation than the results obtained by the model without other mesons except for pion and sigma.
关键词magnetic moments electromagnetic radii nucleon and △(1232) extended Goldstone-Bosonexchange model
收录类别CNKI
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/216103
专题理论物理室
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He J,Dong YB. Magnetic Moments and Electromagnetic Radii of Nucleon and △(1232) in an Extended Goldstone-Boson-Exchange Model[J]. 理论物理通讯(英文版),2005(7):139-146.
APA 何军,&董宇兵.(2005).Magnetic Moments and Electromagnetic Radii of Nucleon and △(1232) in an Extended Goldstone-Boson-Exchange Model.理论物理通讯(英文版)(7),139-146.
MLA 何军,et al."Magnetic Moments and Electromagnetic Radii of Nucleon and △(1232) in an Extended Goldstone-Boson-Exchange Model".理论物理通讯(英文版) .7(2005):139-146.
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