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

共 50 条

[21] Virtualities of quark and gluon in QCD vacuum [J].

LiJuan Zhou ;

SongMei Qin ;

Qing Wu ;

WeiXing Ma .

Science in China Series G: Physics, Mechanics and Astronomy, 2008, 51

[22] Gauge-invariant nonlocal quark condensates in QCD [J].

D'Elia, M ;

Di Giacomo, A ;

Meggiolaro, E .

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 1999, 73 :515-517

[23] Quark condensates in nuclear matter with vacuum effects [J].

Wang, ZS ;

Ma, ZY ;

Zhuo, YZ .

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1997, 358 (04) :451-454

[24] QUARK AND GLUON CONDENSATES IN A BAG MODEL OF THE VACUUM [J].

MILTON, KA .

PHYSICS LETTERS B, 1981, 104 (01) :49-54

[25] QUARK-MODEL WITH QUARK INTERACTIONS THROUGH THE QCD VACUUM [J].

DOROKHOV, AE ;

KOCHELEV, NI .

SOVIET JOURNAL OF NUCLEAR PHYSICS-USSR, 1990, 52 (01) :135-138

[26] Dynamical Model of QCD Vacuum and Quark Confinement [J].

WANG DianFu SONG HeShan MI Dong Department of PhysicsDalian University of TechnologyDalian China .

CommunicationsinTheoreticalPhysics, 2004, 41 (05) :729-732

[27] THE QCD VACUUM AND QUARK-GLUON PLASMA [J].

SHURYAK, EV .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1988, 38 (1-2) :141-145

[28] Quark propagator and meson correlators in the QCD vacuum [J].

Sheel, V ;

Mishra, H ;

Parikh, JC .

INTERNATIONAL JOURNAL OF MODERN PHYSICS E, 1997, 6 (02) :275-286

[29] Dynamical model of QCD vacuum and quark confinement [J].

Wang, DF ;

Song, HS ;

Mi, D .

COMMUNICATIONS IN THEORETICAL PHYSICS, 2004, 41 (05) :729-732

[30] Four-quark condensates in nucleon QCD sum rules [J].

Thomas, R. ;

Hilger, T. ;

Kaempfer, B. .

NUCLEAR PHYSICS A, 2007, 795 :19-46

← 1 2 3 4 5 →