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Chen, XS; Sun, WM; Wang, F; Goldman, T; Chen, XS (reprint author), Huazhong Univ Sci & Technol, Dept Phys, Wuhan 430074, Peoples R China.
Art of spin decomposition
Source PublicationPHYSICAL REVIEW D
Language英语
KeywordNucleon
AbstractWe analyze the problem of spin decomposition for an interacting system from a natural perspective of constructing angular-momentum eigenstates. We split, from the total angular-momentum operator, a proper part which can be separately conserved for a stationary state. This part commutes with the total Hamiltonian and thus specifies the quantum angular momentum. We first show how this can be done in a gauge-dependent way, by seeking a specific gauge in which part of the total angular-momentum operator vanishes identically. We then construct a gauge-invariant operator with the desired property. Our analysis clarifies what is the most pertinent choice among the various proposals for decomposing the nucleon spin. A similar analysis is performed for extracting a proper part from the total Hamiltonian to construct energy eigenstates.
2011
ISSN1550-7998
Volume83Issue:7Pages:71901
Subject AreaPhysics
Indexed BySCI
Funding OrganizationNational Science Foundation of China [10875082, 11035003]; U.S. DOE [DE-AC52-06NA25396]; China Education Department ; National Science Foundation of China [10875082, 11035003]; U.S. DOE [DE-AC52-06NA25396]; China Education Department ; National Science Foundation of China [10875082, 11035003]; U.S. DOE [DE-AC52-06NA25396]; China Education Department ; National Science Foundation of China [10875082, 11035003]; U.S. DOE [DE-AC52-06NA25396]; China Education Department
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/14375
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. Art of spin decomposition[J]. PHYSICAL REVIEW D,2011,83(7):71901.
APA Chen, XS,Sun, WM,Wang, F,Goldman, T,&Chen, XS .(2011).Art of spin decomposition.PHYSICAL REVIEW D,83(7),71901.
MLA Chen, XS,et al."Art of spin decomposition".PHYSICAL REVIEW D 83.7(2011):71901.
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