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题名: Dynamical running mass of quark in the Dyson-Schwinger equation approach
作者: Ma, WX ;  Shen, PN ;  Zhou, LJ
刊名: COMMUNICATIONS IN THEORETICAL PHYSICS
出版日期: 2002
卷号: 38, 期号:5, 页码:571-576
关键词: LATTICE ;  MODEL
学科分类: Physics
通讯作者: Ma, WX , Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China.
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
英文摘要: 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.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000179740200013
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13399
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Ma, WX,Shen, PN,Zhou, LJ. Dynamical running mass of quark in the Dyson-Schwinger equation approach[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2002,38(5):571-576.
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