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arXiv 0903.4155hep-lat
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QCD transition temperature:物理质量处于连续极限II的结果。

The QCD transition temperature: results with physical masses in the continuum limit II.

Y. Aoki, Sz. Borsanyi, S. Durr, Z. Fodor, S. D. Katz, S. Krieg, K. K. Szabo

摘要:

我们扩展我们以前的研究[物理。B643(2006)46]的交叉温度(T_c)。我们通过使用物理夸克质量和更精细的晶格来改进我们的零温分析。除了用于标度设定的K介子衰变常数外,我们还确定了四个与实验相符的量(Ω重子、K^*(892)和K ^*(1020)介子的质量以及π介子衰变常数)。这意味着--与使用这些量中的哪一个来设置整体标度无关--在百分之几的范围内获得相同的结果。在有限的温度下,我们使用更精细的晶格,低至<= 0.1 fm(在一个点上N_t=12和N_t=16)。我们的新结果完全证实了我们以前的发现。我们比较的结果与“hotQCD”的合作。

英文摘要:

We extend our previous study [Phys. Lett. B643 (2006) 46] of the cross-over temperatures (T_c) of QCD. We improve our zero temperature analysis by using physical quark masses and finer lattices. In addition to the kaon decay constant used for scale setting we determine four quantities (masses of the Ωbaryon, K^*(892) and ϕ(1020) mesons and the pion decay constant) which are found to agree with experiment. This implies that --independently of which of these quantities is used to set the overall scale-- the same results are obtained within a few percent. At finite temperature we use finer lattices down to a <= 0.1 fm (N_t=12 and N_t=16 at one point). Our new results confirm completely our previous findings. We compare the results with those of the 'hotQCD' collaboration.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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