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arXiv 1306.5094hep-lathep-ph
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用Polyakov圈敏感度探测解限制

Probing Deconfinement with Polyakov Loop Susceptibilities

Pok Man Lo, Bengt Friman, Olaf Kaczmarek, Krzysztof Redlich, Chihiro Sasaki

摘要:

在SU(3)格点规范理论中计算了Polyakov环的实部和虚部的可伸缩性以及模的可伸缩性。我们表明,这些的比例的可伸缩性是很好的探头的解除禁闭过渡,独立的Polyakov回路的重整化,只有弱依赖于系统的大小。该比率几乎是温度无关的以上和以下的过渡和表现出不连续的过渡温度。这种特征行为可以用杨-米尔斯拉格朗日量的全局Z(3)对称性和波利雅科夫环概率分布的一般性质来理解。

英文摘要:

The susceptibilities of the real and imaginary parts, as well as of the modulus of the Polyakov loop, are computed in SU(3) lattice gauge theory. We show that the ratios of these susceptibilities are excellent probes of the deconfinement transition, independent of the renormalization of the Polyakov loop and only weakly dependent on the system size. The ratios are almost temperature independent above and below the transition and exhibit a discontinuity at the transition temperature. This characteristic behavior can be understood in terms of the global Z(3) symmetry of the Yang-Mills Lagrangian and the general properties of the Polyakov loop probability distribution.

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