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题名: Vacuum condensates from the modification of global color symmetry model
作者: Zong, HS ;  Lu, XF ;  Gu, JZ ;  Chang, CH ;  Zhao, EG
刊名: COMMUNICATIONS IN THEORETICAL PHYSICS
出版日期: 2000
卷号: 34, 期号:2, 页码:369-372
关键词: QUARK-GLUON CONDENSATE ;  SUM-RULES ;  QCD ;  INSTANTONS ;  PHYSICS ;  LATTICE
学科分类: Physics
通讯作者: Zong, HS , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
部门归属: Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China; CCAST, World Lab, Beijing 100080, Peoples R China; Sichuan Univ, Dept Phys, Chengdu 610064, Peoples R China; Max Planck Inst Kernphys, D-69029 Heidelberg, Germany
英文摘要: Based on the quark propagator in the instanton dilute liquid approximation, we have determined the quark condensate ((q) over bar q), the mixed quark gluon condensate g(s)((q) over bar G(mu nu)sigma(mu nu)q) and the four-quark condensate ((q) over bar Gamma q (q) over bar Gamma q) at the mean-field level in the framework of global color symmetry model. The numerical calculation shows that our result is compatible with the range obtained within other nonperturbative approaches. In particular, we have found that even at the mean-field level the naive vacuum saturation approximation is not a good approximation when we consider nonlocal four-quark condensate.
收录类别: SCI
WOS记录号: WOS:000089836300029
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/12906
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Zong, HS,Lu, XF,Gu, JZ,et al. Vacuum condensates from the modification of global color symmetry model[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2000,34(2):369-372.
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