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Validity of Parametrized Quark Propagator
ZHU Ji-Zhen; ZHOU Li-Juan; Ma WX(马维兴); MA Wei-Xing
2005
发表期刊理论物理通讯(英文版)
期号2页码:117-122
摘要Based on an extensively study of the Dyson-Schwinger equations for a fully dressed quark propagator in the "rainbow" approximation, a parametrized fully dressed quark propagator is proposed in this paper. The parametrized propagator describes a confining quark propagator in hadron since it is analytic everywhere in complex p2-plane and has no Lemmann representation. The validity of the new propagator is discussed by comparing its predictions on selfenergy functions Af(p2), Bf(p2) and effective mass Mf(p2) of quark with flavor f to their corresponding theoretical results produced by Dyson-Schwinger equations. Our comparison shows that the parametrized quark propagator is a good approximation to the fully dressed quark propagator given by the solutions of Dyson-Schwinger equations in the rainbow approximation and is convenient to use in any theoretical calculations.
关键词quark propagator Dyson-Schwinger equations non-perturbative QCD
收录类别CNKI
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/215943
专题理论物理室
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GB/T 7714
ZHU Ji-Zhen,ZHOU Li-Juan,Ma WX,et al. Validity of Parametrized Quark Propagator[J]. 理论物理通讯(英文版),2005(2):117-122.
APA ZHU Ji-Zhen,ZHOU Li-Juan,马维兴,&MA Wei-Xing.(2005).Validity of Parametrized Quark Propagator.理论物理通讯(英文版)(2),117-122.
MLA ZHU Ji-Zhen,et al."Validity of Parametrized Quark Propagator".理论物理通讯(英文版) .2(2005):117-122.
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