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Art of spin decomposition
Chen, Xiang-Song1,2; Sun, Wei-Min2,3,4; Wang, Fan2,3,4; Goldman, T.5
2011-04-05
Source PublicationPHYSICAL REVIEW D
Volume83Issue:7
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.
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1103/PhysRevD.83.071901
WOS KeywordNUCLEON
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics ; Physics
WOS SubjectAstronomy & Astrophysics ; Physics, Particles & Fields
WOS IDWOS:000289193800001
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/15967
Collection南极天文中心
Affiliation1.Huazhong Univ Sci & Technol, Dept Phys, Wuhan 430074, Peoples R China
2.Chinese Acad Sci, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China
3.Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China
4.Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Peoples R China
5.Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA
Recommended Citation
GB/T 7714
Chen, Xiang-Song,Sun, Wei-Min,Wang, Fan,et al. Art of spin decomposition[J]. PHYSICAL REVIEW D,2011,83(7).
APA Chen, Xiang-Song,Sun, Wei-Min,Wang, Fan,&Goldman, T..(2011).Art of spin decomposition.PHYSICAL REVIEW D,83(7).
MLA Chen, Xiang-Song,et al."Art of spin decomposition".PHYSICAL REVIEW D 83.7(2011).
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