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Calculation of some properties of vacuum and pi, sigma, mesons in the global color symmetry model
Zong, HS; Liu, YX; Lu, XF; Wang, F; Zhao, EG; Zong, HS , Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China.
2001
发表期刊COMMUNICATIONS IN THEORETICAL PHYSICS
ISSN0253-6102
卷号36期号:2页码:187-194
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.
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
关键词Qcd Sum-rules Quark-quark Interaction Wave-function 4-quark Condensate Magnetic-moments Instanton Vacuum Gluon Propagator Tensor Charge Nucleon Susceptibilities
学科领域Physics
收录类别SCI
WOS记录号WOS:000171143200014
引用统计
被引频次:17[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13685
专题理论物理所SCI论文
通讯作者Zong, HS , Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China.
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GB/T 7714
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.
APA Zong, HS,Liu, YX,Lu, XF,Wang, F,Zhao, EG,&Zong, HS , Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China..(2001).Calculation of some properties of vacuum and pi, sigma, mesons in the global color symmetry model.COMMUNICATIONS IN THEORETICAL PHYSICS,36(2),187-194.
MLA Zong, HS,et al."Calculation of some properties of vacuum and pi, sigma, mesons in the global color symmetry model".COMMUNICATIONS IN THEORETICAL PHYSICS 36.2(2001):187-194.
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