| Transition Temperature of Two-Degenerate-Flavour QCD in the Chiral Limit |
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| 引用本文： | 吴良凯 罗向前. Transition Temperature of Two-Degenerate-Flavour QCD in the Chiral Limit[J]. 中国物理快报, 2007, 24(10): 2769-2772 |
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| 作者姓名： | 吴良凯 罗向前 |
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| 作者单位： | School of Physics and Engineering, Zhongshan （Sun Yat-Sen） University, Guangzhou 510275 |
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| 摘 要： | We present the results for the transition temperature of quantum chromodynamics （QCD） with two degenerate flavours （Nf = 2） of Wilson quarks. On lattice 8^3 × 4 with 4 representing the temporal extent, by using the Ferrenberg-Swendsen reweighting method, we determine the critical β = 6/g^2 where the transition occurs, g is the coupling constant. On lattice 8^2 × 20 × 4, by using the axial vector Ward-Takahashi identity, we calculate the current quark mass amq, a is the lattice spacing. Assuming the O（4） scaling, the critical β in the chiral limit is determined. We calculate the p meson mass amp at zero temperature on lattice 8^3 × 20. By using the experimental p meson mass to set the scale, we obtain 194（1） MeV for the transition temperature in the chiral limit.
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| 关 键 词： | 手性限制 温度转移 时空范围 气味 |
| 收稿时间： | 2007-06-17 |
| 修稿时间： | 2007-06-17 |
Transition Temperature of Two-Degenerate-Flavour QCD in the Chiral Limit |
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| WU Liang-Kai,LUO Xiang-Qian. Transition Temperature of Two-Degenerate-Flavour QCD in the Chiral Limit[J]. Chinese Physics Letters, 2007, 24(10): 2769-2772 |
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| Authors: | WU Liang-Kai LUO Xiang-Qian |
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| Affiliation: | School of Physics and Engineering, Zhongshan (Sun Yat-Sen |
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| Abstract: | |
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| Keywords: | 11.10.Wx 12.38.Gc 11.15.Ha |
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