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Haberzettl, H; Wang, XY; He, J; Haberzettl, H (reprint author), George Washington Univ, Inst Nucl Studies, Washington, DC 20052 USA.
Preserving local gauge invariance with t-channel Regge exchange
Source PublicationPHYSICAL REVIEW C
Language英语
AbstractConsidering single-meson photo-and electroproduction off a baryon, it is shown how to restore local gauge invariance that was broken by replacing standard Feynman-type meson exchange in the t channel by exchange of a Regge trajectory. This is achieved by constructing a contact current whose four-divergence cancels the gauge-invariance-violating contributions resulting from all states above the base state on the Regge trajectory. To illustrate the procedure, modifications necessary for the process gamma + p -> K+ + Sigma(*0) are discussed in some detail. We also provide the general expression for the contact current for an arbitrary reaction.
2015
Volume92Issue:5Pages:55503
Subject AreaPhysics
DOIhttp://dx.doi.org/10.1103/PhysRevC.92.055503
Indexed BySCI
Funding OrganizationMajor State Basic Research Development Program in China [2014CB845405] ; Major State Basic Research Development Program in China [2014CB845405] ; Major State Basic Research Development Program in China [2014CB845405] ; Major State Basic Research Development Program in China [2014CB845405] ; National Natural Science Foundation of China [11275235] ; National Natural Science Foundation of China [11275235] ; National Natural Science Foundation of China [11275235] ; National Natural Science Foundation of China [11275235]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/20789
Collection理论物理所科研产出_SCI论文
Corresponding AuthorHaberzettl, H (reprint author), George Washington Univ, Inst Nucl Studies, Washington, DC 20052 USA.
Recommended Citation
GB/T 7714
Haberzettl, H,Wang, XY,He, J,et al. Preserving local gauge invariance with t-channel Regge exchange[J]. PHYSICAL REVIEW C,2015,92(5):55503.
APA Haberzettl, H,Wang, XY,He, J,&Haberzettl, H .(2015).Preserving local gauge invariance with t-channel Regge exchange.PHYSICAL REVIEW C,92(5),55503.
MLA Haberzettl, H,et al."Preserving local gauge invariance with t-channel Regge exchange".PHYSICAL REVIEW C 92.5(2015):55503.
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