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arXiv 0904.4420hep-ph
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探索QCD关键终点的起源

Exploring an Origin of the QCD Critical Endpoint

K. A. Bugaev, V. K. Petrov, G. M. Zinovjev

摘要:

本文讨论了一种新的方法,通过将夸克-胶子袋系统的退禁闭相变线与它们的表面张力系数为零的相变线相匹配,来建立精确可解的QCD临界点模型。与以前的研究结果相反,在这样的模型中,去精细相不是由等压配分函数的本质奇异性来定义的,而是由它的简单极点来定义的。结果表明,由系统压力一阶导数的不连续性所定义的一阶退禁闭相变是由表面张力系数导数的不连续性所产生的。

英文摘要:

We discuss a new way to develop the exactly solvable model of the QCD critical endpoint by matching the deconfinement phase transition line for the system of quark-gluon bags with the line of their vanishing surface tension coefficient. In contrast to all previous findings in such models the deconfined phase is defined not by an essential singularity of the isobaric partition function, but by its simple pole. As a result we find out that the first order deconfinement phase transition which is defined by a discontinuity of the first derivative of system pressure is generated by a discontinuity of the derivative of surface tension coefficient.

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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