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Quark mass and the masses of Goldstone bosons
Qing WU; Li-juan; ZHOU; Wei-xing MA; Ma WX(马维兴)
2008
发表期刊中国高等学校学术文摘
期号9
通讯作者马维兴
摘要Based on the Dyson-Schwinger Equations (DSEs) of QCD in the "rainbow" approximation, the fully dressed quark propagator S,f (p) is investigated, and then an algebraic parametrization form of the propagator is obtained as a solu-tion of the equations. The dressed quark amplitudes A,f and Bf which built up the fully dressed quark propagator, and the dynamical running masses M,f, which is defined by A,f and By for light quarks u, d and s, are calculated, respec-tively. Using the predicted current masses m,f, quark local vacuum condensates, and our predicted value of pion decay constant, the masses of Goldstone bosons K, π and η and their in-medium values are also evaluated. Our predictions fit to data and to many other different calculations quite well. The numerical results show that the mass of quark is depen-dent of its momentum p'2. The fully dressed quark amplitudes A,f and B,f have correct behaviors and can be used for many purposes in our future researches on non-perturbative QCD.
关键词DSEs quark propagator quark mass Goldstone boson mass
收录类别CNKI
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/215956
专题理论物理室
推荐引用方式
GB/T 7714
Qing WU,Li-juan,ZHOU,et al. Quark mass and the masses of Goldstone bosons[J]. 中国高等学校学术文摘,2008(9).
APA Qing WU,Li-juan,ZHOU,Wei-xing MA,&马维兴.(2008).Quark mass and the masses of Goldstone bosons.中国高等学校学术文摘(9).
MLA Qing WU,et al."Quark mass and the masses of Goldstone bosons".中国高等学校学术文摘 .9(2008).
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