Chiral and deconfinement aspects of the QCD transition
Chiral and deconfinement aspects of the QCD transition
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DOI：
10.1103/physrevd.85.054503
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发表时间：
2012-03-05
影响因子：
5
通讯作者：
Vranas, P.
中科院分区：
文献类型：
--
作者：
Bazavov, A.;Bhattacharya, T.;Vranas, P.
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。使用p4、asqtad和HISQ/树作用量对2 + 1夸克进行计算。时间范围N-tau = 6，8和12的晶格被用来理解和控制离散化误差，并可靠地外推在有限的晶格间距的连续极限获得的估计。手征转变温度是根据两种无质量的理论中的相变定义的，并使用O（N）标度拟合手征凝聚体和磁化率进行分析。我们发现一致的估计从HISQ/树和asqtad行动和我们的主要结果是T-c = 154 +/- 9 MeV。
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.