用n -中点技术研究有限温度下的线性Sigma模型和重子化学势

Physics Research International Pub Date : 2014-03-06 DOI:10.1155/2014/435023

M. Abu-shady

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引用次数: 0

摘要

在有限温度下，线性σ模型中包含重子化学势。利用-中点规则对有效介子势进行了数值计算。研究了介子质量作为温度()在fi重子化学势固定值下的函数。研究了压力和能量密度随温度的变化规律。所得结果与其他方法比较符合较好。计算的有效势成功地预测了有限重子化学势下的介子性质和热力学性质。

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Linear Sigma Model at Finite Temperature and Baryonic Chemical Potential Using the N-Midpoint Technique

A baryonic chemical potential () is included in the linear sigma model at finite temperature. The effective mesonic potential is numerically calculated using the -midpoint rule. The meson masses are investigated as functions of the temperature () at fixed value of baryonic chemical potential. The pressure and energy density are investigated as functions of temperature at fixed value of . The obtained results are in good agreement in comparison with other techniques. We conclude that the calculated effective potential successfully predicts the meson properties and thermodynamic properties at finite baryonic chemical potential.

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Physics Research International

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