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Dynamical running mass of quark in the Dyson-Schwinger equation approach
Ma, WX; Shen, PN; Zhou, LJ; Ma, WX , Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China.
2002
发表期刊COMMUNICATIONS IN THEORETICAL PHYSICS
ISSN0253-6102
卷号38期号:5页码:571-576
摘要Based on the Dyson-Schwinger equations 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, solution of the equations. The dressed quark amplitudes A(f) and B-f built up the fully dressed quark propagator and the dynamical running masses M-f defined by A(f) and B-f for light quarks u, d and s are calculated, respectively. Using the predicted running masses M-f, quark condensates <0\q(0)q(0)\0> = -(0.255 GeV)(3) for u, d quarks, and <0\(s) over bars\0> = 0.8(0\(q) over bar (0)q(0)\0) for s quark, and experimental pion decay constant f(pi) = 0.093 GeV, the masses of Goldstone bosons K, pi, and eta are also evaluated. The numerical results show that the masses of quarks are dependent on their momentum p(2). The fully dressed quark amplitudes Af and Bf have correct behaviors which can be used for many purposes in our future researches on nonperturbative QCD.
部门归属Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Guangxi Univ Technol, Dept Informat & Comp Sci, Liuzhou 545006, Peoples R China
关键词Lattice Model
学科领域Physics
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收录类别SCI
WOS记录号WOS:000179740200013
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被引频次:10[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13399
专题理论物理所SCI论文
通讯作者Ma, WX , Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China.
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Ma, WX,Shen, PN,Zhou, LJ,et al. Dynamical running mass of quark in the Dyson-Schwinger equation approach[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2002,38(5):571-576.
APA Ma, WX,Shen, PN,Zhou, LJ,&Ma, WX , Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China..(2002).Dynamical running mass of quark in the Dyson-Schwinger equation approach.COMMUNICATIONS IN THEORETICAL PHYSICS,38(5),571-576.
MLA Ma, WX,et al."Dynamical running mass of quark in the Dyson-Schwinger equation approach".COMMUNICATIONS IN THEORETICAL PHYSICS 38.5(2002):571-576.
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