Temperature dependence of quarks and gluon vacuum condensate in the Dyson-Schwinger Equations at finite temperature
Zhou, LJ; Zheng, B; Zhong, HW; Ma, WX; Ma WX(马维兴)
刊名CHINESE PHYSICS C
2015
卷号39期号:3页码:33101
关键词Dyson-Schwinger Equations at zero and finite temperature dynamical chiral symmetry breaking quark and gluon vacuum condensate
学科分类Physics
DOI10.1088/1674-1137/39/3/033101
文章类型Article
英文摘要Based on the Dyson-Schwinger Equations (DSEs), the two-quark vacuum condensate, the four-quark vacuum condensate, and the quark gluon mixed vacuum condensate in the non-perturbative QCD vacuum state are investigated by solving the DSEs with rainbow truncation at zero- and finite- temperature, respectively. These condensates are important input parameters in QCD sum rule with zero and finite temperature, and in studying hadron physics, as well as predicting the quark mean squared momentum m(0-)(2) also called quark virtuality in the QCD vacuum state. The present calculated results show that these physical quantities az. almost independent of the temperature below the critical point temperature T-c = 131 MeV, and above T-c the chiral symmetry is restored. For comparison we calculate the temperature dependence of the "in-hadron condensate" for pion. At the same time, we also calculate the ratio of the quark gluon mixed vacuum condensate to the two-quark vacuum condensate by using these condensates, and the unknown quark mean squared momentum in the QCD vacuum state has been obtained. The results show that the ratio m(0)(2)(T) is almost flat in the temperature region from 0 to T-c, although there are drastic changes of the quark vacuum condensate and the quark gluon mixed vacuum condensate at the region. Our predicted ratio comes out to be m(0)(2)(T)=2.41 GeV2 at the Chiral limit, which is consistent with other theory model predictions, and strongly indicates the significance that the quark gluon mixed vacuum condensate has played in the virtuality calculations.
类目[WOS]Physics, Nuclear ; Physics, Particles & Fields
收录类别SCI
WOS记录号WOS:000351807500001
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228379
专题中国科学院高能物理研究所_理论物理室_期刊论文
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GB/T 7714
Zhou, LJ,Zheng, B,Zhong, HW,et al. Temperature dependence of quarks and gluon vacuum condensate in the Dyson-Schwinger Equations at finite temperature[J]. CHINESE PHYSICS C,2015,39(3):33101.
APA Zhou, LJ,Zheng, B,Zhong, HW,Ma, WX,&马维兴.(2015).Temperature dependence of quarks and gluon vacuum condensate in the Dyson-Schwinger Equations at finite temperature.CHINESE PHYSICS C,39(3),33101.
MLA Zhou, LJ,et al."Temperature dependence of quarks and gluon vacuum condensate in the Dyson-Schwinger Equations at finite temperature".CHINESE PHYSICS C 39.3(2015):33101.
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