ITP OpenIR  > 理论物理所科研产出  > SCI论文
Chen, XS; Sun, WM; Wang, F; Goldman, T; Chen, XS (reprint author), Huazhong Univ Sci & Technol, Dept Phys, Wuhan 430074, Peoples R China.
Proper identification of the gluon spin
Source PublicationPHYSICS LETTERS B
Language英语
AbstractProperties of the recently proposed gauge-invariant gluon spin S(g) are studied and compared to the usually defined "gluon polarization" Delta g. By explicit 1-loop calculations in a quark state. it is found that S(g) = 5/9 Delta g. Furthermore, 4/5 of S(g) can actually be identified as a "static-field" contribution and shown to cancel exactly an analogous static term in the gluon orbital angular momentum L(g), leaving S(g) + L(g) unaltered. These observations suggest that by an alternative definition, the gluon contribution to the nucleon spin may be drastically smaller than in the conventional wisdom. (C) 2011 Elsevier B.V. All rights reserved.
2011
ISSN0370-2693
Volume700Issue:1Pages:21-24
Subject AreaPhysics
Indexed BySCI
Funding OrganizationChina NSF [10875082, 11035003]; US DOE [DE-AC52-06NA25396]; China Education Department ; China NSF [10875082, 11035003]; US DOE [DE-AC52-06NA25396]; China Education Department ; China NSF [10875082, 11035003]; US DOE [DE-AC52-06NA25396]; China Education Department ; China NSF [10875082, 11035003]; US DOE [DE-AC52-06NA25396]; China Education Department
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/14346
Collection理论物理所科研产出_SCI论文
Corresponding AuthorChen, XS (reprint author), Huazhong Univ Sci & Technol, Dept Phys, Wuhan 430074, Peoples R China.
Recommended Citation
GB/T 7714
Chen, XS,Sun, WM,Wang, F,et al. Proper identification of the gluon spin[J]. PHYSICS LETTERS B,2011,700(1):21-24.
APA Chen, XS,Sun, WM,Wang, F,Goldman, T,&Chen, XS .(2011).Proper identification of the gluon spin.PHYSICS LETTERS B,700(1),21-24.
MLA Chen, XS,et al."Proper identification of the gluon spin".PHYSICS LETTERS B 700.1(2011):21-24.
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