The Equation of State and Phase Structure in A Model with Dynamical Spontaneous Symmetry Breaking at Finite Temperature and Density

Wang Enke; Li Jiarong

Chinese Physics C> 1992, Vol. 16> Issue(S2) : 193-200

The Equation of State and Phase Structure in A Model with Dynamical Spontaneous Symmetry Breaking at Finite Temperature and Density

Wang Enke ¹ ,
Li Jiarong ²

1 Jingzhou Teachers College, Jiangling, Hubei, China;
2 Institute of Particle Physics, Central China Normal University, Wuhan, Hubei, China

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Abstract：
Based on the Lurie model, a convenient scheme is constructed for calculating the equation of state approximately. The parametric equation of state is given in the Lurie model. The phase diagram of the model shows the existence of a critical point separating first order from second order chiral phase transition. A careful analysis of the isotherms of pressure versus net baryon number density suggests the existence of overheat and overcool metastable state and the coexistence of broken phase and normal phase.

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Wang Enke and Li Jiarong. The Equation of State and Phase Structure in A Model with Dynamical Spontaneous Symmetry Breaking at Finite Temperature and Density[J]. Chinese Physics C, 1992, 16(S2): 193-200.

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Received: 1991-07-30

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Supported by the National Natural Science Foundation of China.

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The Equation of State and Phase Structure in A Model with Dynamical Spontaneous Symmetry Breaking at Finite Temperature and Density

Wang Enke ^1,
Li Jiarong ^2,

1 Jingzhou Teachers College, Jiangling, Hubei, China;
2 Institute of Particle Physics, Central China Normal University, Wuhan, Hubei, China

Received Date: 1991-07-30

Fund Project: Supported by the National Natural Science Foundation of China.

Abstract: Based on the Lurie model, a convenient scheme is constructed for calculating the equation of state approximately. The parametric equation of state is given in the Lurie model. The phase diagram of the model shows the existence of a critical point separating first order from second order chiral phase transition. A careful analysis of the isotherms of pressure versus net baryon number density suggests the existence of overheat and overcool metastable state and the coexistence of broken phase and normal phase.