Nonzero mean squared momentum of quarks in the nonperturbative QCD vacuum

	Nonzero mean squared momentum of quarks in the nonperturbative QCD vacuum
	Zhou, LJ; Kisslinger, LS; Ma WX(马维兴); Ma, WX
刊名	PHYSICAL REVIEW D
	2010
卷号	82 期号:3 页码:34037
通讯作者	[Zhou, Li-Juan] Guangxi Univ Technol, Dept Informat & Comp Sci, Liuzhou 545006, Peoples R China ; [Zhou, Li-Juan] Hua Zhong Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China ; [Kisslinger, Leonard S.] Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA ; [Ma, Wei-xing] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
英文摘要	The nonlocal vacuum condensates of QCD describe the distributions of quarks and gluons in the nonperturbative QCD vacuum. Physically, this means that vacuum quarks and gluons have nonzero mean squared momentum, called virtuality. In this paper we study the quark virtuality which is given by the ratio of the local quark-gluon mixed vacuum condensate to the quark local vacuum condensate. The two vacuum condensates are obtained by solving Dyson-Schwinger equations of a fully dressed quark propagator with an effective gluon propagator. Using our calculated condensates, we obtain the virtuality of quarks in the QCD vacuum state. Our numerical predictions are consistent with other theoretical model calculations such as QCD sum rules, lattice QCD and instanton models.
学科主题	Astronomy & Astrophysics; Physics
类目[WOS]	Astronomy & Astrophysics ; Physics, Particles & Fields
研究领域[WOS]	Astronomy & Astrophysics ; Physics
原文出处	SCI
语种	英语
WOS记录号	WOS:000281406400003
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/240568]
专题	高能物理研究所_理论物理室
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Zhou, LJ,Kisslinger, LS,Ma WX,et al. Nonzero mean squared momentum of quarks in the nonperturbative QCD vacuum[J]. PHYSICAL REVIEW D,2010,82(3):34037.
APA	Zhou, LJ,Kisslinger, LS,马维兴,&Ma, WX.(2010).Nonzero mean squared momentum of quarks in the nonperturbative QCD vacuum.PHYSICAL REVIEW D,82(3),34037.
MLA	Zhou, LJ,et al."Nonzero mean squared momentum of quarks in the nonperturbative QCD vacuum".PHYSICAL REVIEW D 82.3(2010):34037.