Nucleon electric polarizability in a non-relativistic chiral constituent quark model
Dong YB(董宇兵); Chen DY(陈殿勇); Dong, YB; Chen, DY
刊名NUCLEAR PHYSICS A
2006
卷号766页码:#REF!
关键词chiral quark model nucleon electric polarizability goldstone boson configuration mixing electric mean square radius
学科分类Physics
DOI10.1016/j.nuclphysa.2005.11.021
通讯作者Dong, YB (reprint author), CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
文章类型Article
英文摘要The non-relativistic chiral constituent quark model is applied to study nucleon electric polarizability and its electric mean square radius. The effect of Goldstone Boson degrees of freedom is discussed explicitly. It is found that chiral fields remarkably contribute not only to the proton and neutron electric mean square radii, but also to their electric polarizabilities. Consequently, the fluctuation of the chiral fields inside the nucleon cannot be simply ignored in the explanation of nucleon intrinsic polarizabilities, as well as in other predictions of the nucleon spin and flavor properties. Moreover, if we keep the harmonic oscillator frequency w to be around 500 MeV, we find that the simple model with the Goldstone boson degrees of freedom is not sufficient to give a good description both for the electric mean square radii and for the electric polarizabilities of the proton and neutron simultaneously, even if the configuration mixing is included. Our results show that a small value of w similar to 300 MeV is favored. (c) 2005 Elsevier B.V. All rights reserved.
类目[WOS]Physics, Nuclear
收录类别SCI
WOS记录号WOS:000235126600010
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被引频次:1[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/311005/226764
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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Dong YB,Chen DY,Dong, YB,et al. Nucleon electric polarizability in a non-relativistic chiral constituent quark model[J]. NUCLEAR PHYSICS A,2006,766:#REF!.
APA 董宇兵,陈殿勇,Dong, YB,&Chen, DY.(2006).Nucleon electric polarizability in a non-relativistic chiral constituent quark model.NUCLEAR PHYSICS A,766,#REF!.
MLA 董宇兵,et al."Nucleon electric polarizability in a non-relativistic chiral constituent quark model".NUCLEAR PHYSICS A 766(2006):#REF!.
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