Nucleon internal structure: a new set of quark, gluon momentum, angular momentum operators and parton distribution functions

CORC > 紫金山天文台 > 中国科学院紫金山天文台 > 分子云与恒星形成研究团组

	Nucleon internal structure: a new set of quark, gluon momentum, angular momentum operators and parton distribution functions
	Wang Fan 1,2,3; Chen Xiang-Song 2,3,4; Lu Xiao-Fu 4; Sun Wei-Min 1,2,3; Goldman, T.4,5
刊名	CHINESE PHYSICS C
	2009-12-01
卷号	33 期号:12 页码:1197-1204
关键词	nucleon internal structure quark-gluon momentum and angular momentum canonical communication relation gauge invariance
ISSN号	1674-1137
英文摘要	It is unavoidable to deal with the quark and gluon momentum and angular momentum contributions to the nucleon momentum and spin in the study of nucleon internal structure However we never have the quark and gluon momentum, orbital angular momentum and gluon spin operators which satisfy both the guage invariance and the canonical momentum and angular momentum commutation relation The conflicts between the guage invariance and canonical quantization requirement of these operators are discussed A new set of quark and gluon momentum, orbital angular momentum and spin operators, which satisfy, both the gauge. invariance and canonical momentum and angular momentum commutation relation, are proposed The key point to achieve such a proper decomposition is to separate the gauge field into the pure gauge and the gauge covariant parts The same conflicts also exist in QED and quantum mechanics and have been solved in the same manner The impacts of this new decomposition to the nucleon internal structure are discussed
学科主题	Physics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Physics, Nuclear ; Physics, Particles & Fields
研究领域[WOS]	Physics
关键词[WOS]	GAUGE-INVARIANCE ; SPIN
收录类别	SCI ; ISTP
语种	英语
WOS记录号	WOS:000272577200023
公开日期	2011-12-08
内容类型	期刊论文
源URL	[http://159.226.72.40/handle/332002/1431]
专题	紫金山天文台_分子云与恒星形成研究团组
作者单位	1.Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China 2.Chinese Acad Sci, Purple Mt Observ, Nanjing 210093, Peoples R China 3.Nanjing Univ, Joint Inst Particle Nucl Phys & Cosmol, Nanjing 210093, Peoples R China 4.Sichuan Univ, Dept Phys, Chengdu 610064, Peoples R China 5.Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA
推荐引用方式 GB/T 7714	Wang Fan,Chen Xiang-Song,Lu Xiao-Fu,et al. Nucleon internal structure: a new set of quark, gluon momentum, angular momentum operators and parton distribution functions[J]. CHINESE PHYSICS C,2009,33(12):1197-1204.
APA	Wang Fan,Chen Xiang-Song,Lu Xiao-Fu,Sun Wei-Min,&Goldman, T..(2009).Nucleon internal structure: a new set of quark, gluon momentum, angular momentum operators and parton distribution functions.CHINESE PHYSICS C,33(12),1197-1204.
MLA	Wang Fan,et al."Nucleon internal structure: a new set of quark, gluon momentum, angular momentum operators and parton distribution functions".CHINESE PHYSICS C 33.12(2009):1197-1204.