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题名: Calculation of some properties of vacuum and pi, sigma, mesons in the global color symmetry model
作者: Zong, HS ;  Liu, YX ;  Lu, XF ;  Wang, F ;  Zhao, EG
刊名: COMMUNICATIONS IN THEORETICAL PHYSICS
出版日期: 2001
卷号: 36, 期号:2, 页码:187-194
关键词: QCD SUM-RULES ;  QUARK-QUARK INTERACTION ;  WAVE-FUNCTION ;  4-QUARK CONDENSATE ;  MAGNETIC-MOMENTS ;  INSTANTON VACUUM ;  GLUON PROPAGATOR ;  TENSOR CHARGE ;  NUCLEON ;  SUSCEPTIBILITIES
学科分类: Physics
通讯作者: Zong, HS , Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China.
部门归属: Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China; Beijing Univ, Dept Phys, Beijing 100871, Peoples R China; Sichuan Univ, Dept Phys, Chengdu 610064, Peoples R China
英文摘要: Based on the quark propagator derived in the instanton dilute liquid approximation, the quark condensate <(q) over barq >, the mixed quark gluon condensate g(a)< qG(muv)sigma (muv)q > the four-quark condensate <(q) over bar Gammaq (q) over bar Gammaq > and tensor, pion vacuum susceptibilities have been calculated at the mean-field level in a nonperturbative QCD model. The numerical results are compatible with the values obtained within other nonperturbative approaches. The calculated masses and decay constants of pi and sigma mesons are close to the experimental values. These results show that the instanton medium might be a good approximation of the QCD vacuum.
收录类别: SCI
WOS记录号: WOS:000171143200014
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13685
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,Liu, YX,Lu, XF,et al. Calculation of some properties of vacuum and pi, sigma, mesons in the global color symmetry model[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2001,36(2):187-194.
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