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arXiv 0710.4240hep-lat
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3d三态Potts模型的普适性和质量激发

Universality and massive excitations in 3d 3-state Potts model

R. Falcone, R. Fiore, M. Gravina, A. Papa

摘要:

在温度-磁场平面上的二级Ising临界点附近和零磁场下的弱一级相变点附近,研究了3d三态Potts模型的质量谱.在情况(a)中,将质量谱与3d伊辛类中质量比普适性的预测进行比较;在情况(b)中,确定了一个质量比,并将其与(3+1)d SU(3)纯规范理论在有限温度下的退禁闭相中的屏蔽质量谱中的相应质量比进行比较。

英文摘要:

The mass spectrum of the 3d 3-state Potts model is considered in the broken phase (a) near the second order Ising critical point in the temperature-magnetic field plane and (b) near the weakly first order transition point at zero magnetic field. In the case (a), the mass spectrum is compared with the prediction from universality of mass ratios in the 3d Ising class; in the case (b) a mass ratio is determined to be compared with the corresponding one in the spectrum of screening masses of the (3+1)d SU(3) pure gauge theory at finite temperature in the deconfined phase near the transition.

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