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arXiv 1111.1710hep-lathep-phnucl-th
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QCD跃迁的手性和去禁闭方面

The chiral and deconfinement aspects of the QCD transition

A. Bazavov, T. Bhattacharya, M. Cheng, C. DeTar, H. -T. Ding, Steven Gottlieb, R. Gupta, P. Hegde, U. M. Heller, F. Karsch, E. Laermann, L. Levkova, S. Mukherje… 展开作者

A. Bazavov, T. Bhattacharya, M. Cheng, C. DeTar, H. -T. Ding, Steven Gottlieb, R. Gupta, P. Hegde, U. M. Heller, F. Karsch, E. Laermann, L. Levkova, S. Mukherjee, P. Petreczky, C. Schmidt, R. A. Soltz, W. Soeldner, R. Sugar, D. Toussaint, W. Unger, P. Vranas

摘要:

我们给出了在有限温度下QCD跃迁的手征性质和退禁闭性质的结果。用p4、asqtad和HISQ/树作用量对2 + 1夸克进行了计算。时间范围N_tau = 6,8和12的格子被用来理解和控制离散化误差,并可靠地外推在有限的格子间距的连续极限获得的估计。手征转变温度定义在相变的理论与两个无质量的味道和分析使用O(N)标度适合手征凝聚和磁化率。从HISQ/tree和asqtad作用量得到了一致的估计,主要结果是T_c = 154 +/-9MeV。

英文摘要:

We present results on the chiral and deconfinement properties of the QCD transition at finite temperature. Calculations are performed with 2+1 flavors of quarks using the p4, asqtad and HISQ/tree actions. Lattices with temporal extent N_tau=6, 8 and 12 are used to understand and control discretization errors and to reliably extrapolate estimates obtained at finite lattice spacings to the continuum limit. The chiral transition temperature is defined in terms of the phase transition in a theory with two massless flavors and analyzed using O(N) scaling fits to the chiral condensate and susceptibility. We find consistent estimates from the HISQ/tree and asqtad actions and our main result is T_c=154 +/- 9 MeV.

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