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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
2006
发表期刊JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
卷号32期号:2页码:#REF!
通讯作者He, J (reprint author), CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
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.
文章类型Article
学科领域Physics
DOI10.1088/0954-3899/32/2/010
收录类别SCI
WOS类目Physics, Nuclear ; Physics, Particles & Fields
WOS记录号WOS:000235626900011
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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
专题理论物理室
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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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