Zero modes in electromagnetic form factors of the nucleon in a light-cone diquark model
He J(何军); Dong YB(董宇兵); He, J; Dong, YB
刊名JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
2006
卷号32期号:2页码:#REF!
学科分类Physics
DOI10.1088/0954-3899/32/2/010
通讯作者He, J (reprint author), CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
文章类型Article
英文摘要We use a diquark model of the nucleon to calculate the electromagnetic forrn factors of the nucleon described as a scalar and axialvector diquark bound state. We provide an analysis of the zero-mode contribution in the diquark model. We find that there are zero-mode contributions to the form factors arising from the instantaneous part of the quark propagator, which cannot be neglected compared with the valence contribution but can be removed by the choice of wavefunction. We also find,that the charge, magnetic radii and magnetic moment of the proton can be reproduced, while the magnetic moment of the neutron is too small. The dipole shape of the form factors. G(M)(P) (Q(2))/mu(p) and G(M)(n) (Q(2))/mu(n,beta) can be reproduced. The ratio mu G(E)(P)/G(M)(P) decreases with but Q(2), too fast.
类目[WOS]Physics, Nuclear ; Physics, Particles & Fields
收录类别SCI
WOS记录号WOS:000235626900011
引用统计
被引频次:2[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/311005/226803
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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GB/T 7714
He J,Dong YB,He, J,et al. Zero modes in electromagnetic form factors of the nucleon in a light-cone diquark model[J]. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,2006,32(2):#REF!.
APA 何军,董宇兵,He, J,&Dong, YB.(2006).Zero modes in electromagnetic form factors of the nucleon in a light-cone diquark model.JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,32(2),#REF!.
MLA 何军,et al."Zero modes in electromagnetic form factors of the nucleon in a light-cone diquark model".JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS 32.2(2006):#REF!.
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