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题名: Modified approach for calculating vacuum susceptibility
作者: Zong, HS; Hou, FY; Sun, WM; Ping, JL; Zhao, EG
刊名: PHYSICAL REVIEW C
出版日期: 2005-09-01
卷号: 72, 期号:3
DOI: 10.1103/PhysRevC.72.035202
文章类型: Article
英文摘要: By differentiating the dressed quark propagator with respect to a constant external field, the linear response of the nonperturbative dressed quark propagator in the presence of the constant external field can be obtained. From this general method, taking the vector vacuum susceptibility as an illustration, we one extract a model-independent expression for the vacuum susceptibility in the quantum chromodynamical (QCD) sum rule two-point external field formula. This expression for the vacuum susceptibility is quite different from that given in the previous literature. The numerical values of the vector vacuum susceptibility are calculated within the framework of the rainbow-ladder approximation of the Dyson-Schwinger approach. A comparison with the results of the previous approaches is given.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Physics, Nuclear
研究领域[WOS]: Physics
关键词[WOS]: QCD SUM-RULES ; QUARK-QUARK INTERACTION ; DYSON-SCHWINGER EQUATIONS ; ODD PARTON DISTRIBUTIONS ; COLOR SYMMETRY MODEL ; PION WAVE-FUNCTION ; TENSOR SUSCEPTIBILITY ; MAGNETIC-MOMENTS ; GLUON CONDENSATE ; HADRON PHYSICS
收录类别: SCI
语种: 英语
WOS记录号: WOS:000232229900052
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/15844
Appears in Collections:分子云与恒星形成研究团组_期刊论文

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作者单位: 1.Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China
2.Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Peoples R China
3.CCAST World Lab, Beijing 100080, Peoples R China
4.Nanjing Normal Univ, Dept Phys, Nanjing 210097, Peoples R China
5.Acad Sinica, Inst Teoret Phys, Beijing 100080, Peoples R China
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