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arXiv 0707.2263nucl-th
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表面张力在夸克胶子袋物态方程中的作用

The Role of Surface Tension for the Equation of State of Quark-Gluon Bags

K. A. Bugaev

摘要:

在夸克胶子袋模型的气体中引入了与温度和化学势有关的袋的表面张力。建议的模型解析求解。它解决了一个长期存在的问题,统一描述的一级和二级相变的交叉。这种方法对于从统计力学的第一性原理出发来模拟夸克-胶子等离子体和强子物质的复杂性质是必要的。除了退禁闭相变外,我们还发现在表面张力系数为零的曲线上,一定存在二阶或更高阶的表面诱导相变,它将纯夸克-胶子等离子体(QGP)与交叉态分开。因此,本模型预言量子色动力学的临界端点是三临界端点。

英文摘要:

The temperature and chemical potential dependent surface tension of bags is introduced into the gas of quark-gluon bags model. The suggested model is solved analytically. It resolves a long standing problem of a unified description of the first and second order phase transition with the cross-over. Such an approach is necessary to model the complicated properties of quark-gluon plasma and hadronic matter from the first principles of statistical mechanics. In addition to the deconfinement phase transition, we found that at the curve of a zero surface tension coefficient there must exist the surface induced phase tranition of the 2-nd or higher order, which separates the pure quark gluon plasma (QGP) from the cross-over states. Thus, the present model predicts that the critical endpoint of quantum chromodynamics is the tricritical endpoint.

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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