Quark virtuality and QCD vacuum condensates

被引：0
|
作者：
Zhou, LJ [1 ]
Ma, WX
机构：
[1] Guangxi Univ Technol, Dept Informat & Comp Sci, Liuzhou 545006, Peoples R China
[2] Guangxi Univ, Dept Phys, Nanning 530004, Peoples R China
[3] Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China
来源：
CHINESE PHYSICS LETTERS | 2004年 / 21卷 / 08期
关键词：
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Based on the Dyson-Schwinger equations (DSEs) in the 'rainbow' approximation, we investigate the quark virtuality in the vacuum state and quantum-chromodynamics (QCD) vacuum condensates. In particular, we calculate the local quark vacuum condensate and quark-gluon mixed condensates, and then the virtuality of quark. The calculated quark virtualities are lambda(u,d)(2) = 0.7 GeV2 for u, d quarks, and lambda(s)(2) = 1.6 GeV2 for s quark. Our theoretical predictions are consistent with empirical values used in QCD sum rules, and also fit to lattice QCD predictions.
引用
收藏
页码：1471 / 1474
页数：4
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