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arXiv 1001.3072hep-ph
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Polyakov循环和正则化如何影响有限T下对称性的奇异性和恢复

How the Polyakov loop and the regularization affect strangeness and restoration of symmetries at finite T

M. C. Ruivo, Pedro Costa, C. A. de Sousa, H. Hansen, W. M. Alberico

摘要:

在Polyakov环扩展的Nambu-Jona-Lasinio模型中研究了Polyakov环和正则化过程的影响,该过程允许在有限温度下存在高动量夸克态。的特征温度,以及信号解除限制和恢复手征和轴对称的可观的行为,进行了分析,特别注意的行为的奇异度的自由。我们观察到,Polyakov循环和正则化过程的累积效应有助于更好地描述热力学,与晶格估计相比。我们发现一个更快的部分恢复的手征对称性和轴对称性的恢复出现作为一个自然的结果,完全恢复的手征对称性,动态打破。这些结果显示了在有限温度下Polyakov圈动力学、高动量夸克态以及手征对称性和轴对称性的恢复之间的相互作用的影响的相关性。

英文摘要:

The effects of the Polyakov loop and of a regularization procedure that allows the presence of high momentum quark states at finite temperature is investigated within the Polyakov-loop extended Nambu--Jona-Lasinio model. The characteristic temperatures, as well as the behavior of observables that signal deconfinement and restoration of chiral and axial symmetries, are analyzed, paying special attention to the behavior of strangeness degrees of freedom. We observe that the cumulative effects of the Polyakov loop and of the regularization procedure contribute to a better description of the thermodynamics, as compared with lattice estimations. We find a faster partial restoration of chiral symmetry and the restoration of the axial symmetry appears as a natural consequence of the full recovering of the chiral symmetry that was dynamically broken. These results show the relevance of the effects of the interplay among the Polyakov loop dynamics, the high momentum quark sates and the restoration of the chiral and axial symmetries at finite temperature.

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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