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

页码：1471 / 1474

页数：4

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[41] Nonperturbative QCD vacuum effects in nonlocal quark dynamics [J].

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[45] THE QUARK CONDENSATE IN THE BAG-LIKE QCD VACUUM [J].

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