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)
刊名理论物理通讯(英文版)
2005
期号7页码:139-146
关键词magnetic moments electromagnetic radii nucleon and △(1232) extended Goldstone-Bosonexchange model
通讯作者何军
英文摘要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.
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
专题中国科学院高能物理研究所_理论物理室_期刊论文
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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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