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Massive meson fluctuation in NJL model
Huang M(黄梅); Huang, M; Zhuang, PF; Chao, WQ
2000
发表期刊COMMUNICATIONS IN THEORETICAL PHYSICS
卷号34期号:1页码:#REF!
通讯作者Huang, M (reprint author), Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China.
文章类型Article
摘要Based on the self-consistent scheme beyond the mean-field approximation in the large N-c expansion, including current quark mass explicitly, a general scheme of SU(2) NJL model is developed. To ensure the quark self-energy expanded in the proper order of N-c, an approximate internal meson propagator is deduced, which is in order of O(1/N-c). In our scheme, adopting the method of external momentum expansion, all the Feynman diagrams are calculated in a unified way by only expanding the quark propagator. Our numerical results show that, different from the mean-field approximation in which the explicitly chiral symmetry breaking is invisible, the effect of finite pion mass can be seen clearly when beyond the mean-field approximation.
关键词NJL model beyond mean-field approximation external momentum expansion
学科领域Physics
收录类别SCI
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000088659700014
引用统计
被引频次:3[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/311005/226077
专题理论物理室
推荐引用方式
GB/T 7714
Huang M,Huang, M,Zhuang, PF,et al. Massive meson fluctuation in NJL model[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2000,34(1):#REF!.
APA 黄梅,Huang, M,Zhuang, PF,&Chao, WQ.(2000).Massive meson fluctuation in NJL model.COMMUNICATIONS IN THEORETICAL PHYSICS,34(1),#REF!.
MLA 黄梅,et al."Massive meson fluctuation in NJL model".COMMUNICATIONS IN THEORETICAL PHYSICS 34.1(2000):#REF!.
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