| Effects on the Hadron Propagators due to kμkv Terms in the Vector Meson Propagator |
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| 作者单位： | Center for Theoretical Physics, College of Physics, Jilin University, Changchun 130023, China |
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| 基金项目： | 国家自然科学基金，教育部科学技术研究项目 |
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| 摘 要： | In an approximation where the baryon current conservation is violated, the contribution of the kμkv termsin the vector meson propagator may not vanish. Their effects on the baryon and meson spectral functions and on theconsequences of self-consistency are studied in the relativistic self-consistent Hartree-Fock approximation by means ofthe σ-ω model. Two cases where the kμkv terms are and are not neglected are compared. It is found that there is amarked change in the baryon spectral function which becomes more peaked in the latter case. Such a change remainseven by a proper readjustment of parameters. The effects of self-consistency in the σ -ω model are qualitatively the samein both cases, though quantitatively there is some significant difference.
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| 关 键 词： | current conservation self-consistency kμkv terms |
Effects on the Hadron Propagators due to kμkv Terms in the Vector Meson Propagator |
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| Authors: | ZHANG Hai-Xia WU Shi-Shu |
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| Institution: | Center for Theoretical Physics, College of Physics, Jilin University, Changchun 130023, China Center for Theoretical Physics, College of Physics, Jilin University, Changchun 130023, China |
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| Abstract: | |
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| Keywords: | current conservation self-consistency |
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