Quark and Gluon Condensates at Finite Temperatures by the Linear Sigma Model Approach
DING Jing-Zhi1**, JIN Hong-Ying2
1Department of Environmental Engineering, Wuhan Textile University, Wuhan 430073 2Zhejiang Institute of Modern Physics, Zhejiang University, Hangzhou 310027
Abstract：Based on a linear sigma model, we discuss the mixing between a quark condensate and a gluon condensate. It is shown that the linear sigma model will not be self-consistent if we switch off the mixing coupling between glueball and chiral fields. By introducing a proper mixing coupling, we realize the second-order phase transitions of chiral symmetry restoration and deconfinement. We further show that the critical temperature of chiral symmetry restoration could not be larger than the temperature of deconfinement phase transition in all possible parameter spaces of our model.
(Quark deconfinement, quark-gluon plasma production, and phase transitions)
引用本文:
. [J]. 中国物理快报, 2014, 31(08): 81201-081201.
DING Jing-Zhi, JIN Hong-Ying. Quark and Gluon Condensates at Finite Temperatures by the Linear Sigma Model Approach. Chin. Phys. Lett., 2014, 31(08): 81201-081201.
2014, Vol. 31 
