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arXiv 0704.3882hep-lat
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SU中的屏蔽质量(3)纯规范理论和普适性

Screening masses in the SU(3) pure gauge theory and universality

Rossella Falcone, Roberto Fiore, Mario Gravina, Alessandro Papa

摘要:

本文从Polyakov圈展开子出发,确定了(3+1)d SU(3)纯规范理论在有限温度下,对于角动量和宇称两种不同通道,在跃迁附近退限相的屏蔽质量。并与零磁场下三态Potts模型中相同量子数的质量激发在相变点附近的破缺相的比值进行了比较。此外,我们还研究了Polyakov环的实部和虚部之间的相关性的逆衰减长度,并将结果与微扰理论和平均场Polyakov环模型的预期结果进行了比较。

英文摘要:

We determine from Polyakov loop correlators the screening masses in the deconfined phase of the (3+1)d SU(3) pure gauge theory at finite temperature near the transition, for two different channels of angular momentum and parity. Their ratio is compared with that of the massive excitations with the same quantum numbers in the 3d 3-state Potts model in the broken phase near the transition point at zero magnetic field. Moreover we study the inverse decay length of the correlation between the real parts and between the imaginary parts of the Polyakov loop and compare the results with expectations from perturbation theory and mean-field Polyakov loop models.

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