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Proper identification of the gluon spin
Chen, XS; Sun, WM; Wang, F; Goldman, T; Chen, XS (reprint author), Huazhong Univ Sci & Technol, Dept Phys, Wuhan 430074, Peoples R China.
2011
发表期刊PHYSICS LETTERS B
ISSN0370-2693
卷号700期号:1页码:21-24
摘要Properties 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.
部门归属[Chen, Xiang-Song] Huazhong Univ Sci & Technol, Dept Phys, Wuhan 430074, Peoples R China; [Chen, Xiang-Song; Sun, Wei-Min; Wang, Fan] Chinese Acad Sci, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China; [Sun, Wei-Min; Wang, Fan] Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China; [Sun, Wei-Min; Wang, Fan] Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Peoples R China; [Goldman, T.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA
学科领域Physics
资助者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 ; 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 ; China NSF [10875082, 11035003]; US DOE [DE-AC52-06NA25396]; China Education Department ; China NSF [10875082, 11035003]; US DOE [DE-AC52-06NA25396]; China Education Department
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收录类别SCI
语种英语
资助者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 ; 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 ; China NSF [10875082, 11035003]; US DOE [DE-AC52-06NA25396]; China Education Department ; China NSF [10875082, 11035003]; US DOE [DE-AC52-06NA25396]; China Education Department
WOS记录号WOS:000291578800005
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被引频次:23[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/14346
专题理论物理所SCI论文
通讯作者Chen, XS (reprint author), Huazhong Univ Sci & Technol, Dept Phys, Wuhan 430074, Peoples R China.
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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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