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arXiv 1111.3042hep-phhep-latnucl-th
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模型参数对PNJL模型热力学性质的影响

Effects of Model Parameters in Thermodynamics of the PNJL Model

A. F. Friesen, Yu. K. Kalinovsky, V. D. Toneev

摘要:

研究了有限化学势下双味($N_f=$ 2)三色($N_c=3$)Polyakov环扩展Nambu-Jona-Lasinio模型的热力学行为.新的格点胶子数据胶子热力学定义内的多项式和对数形式的近似的有效潜力。我们研究了使用不同的数据集和不同形式的潜在的热和致密物质的热力学性质的影响。结果表明,PNJL热力学对有效势形式的依赖性大于对所用格点数据的依赖性。特别注意的是在$(T,μ)$平面的相图。

英文摘要:

The thermodynamic behavior of the two-flavor($N_f=$2) three-color ($N_c=3$) Polyakov-loop-extended Nambu-Jona-Lasinio model at the finite chemical potential is investigated. New lattice gluon data for gluon thermodynamics are used defining the effective potential within polynomial and logarithmic forms of its approximation. We study the effects of using different sets of data and different forms of the potential on thermodynamic properties of hot and dense matter. It is found that the PNJL thermodynamics depends stronger on the form of the effective potential than on the used lattice data set. Particular attention is paid to the phase diagram in the $(T,μ)$ plane.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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