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Transition Temperature of Two-Degenerate-Flavour QCD in the Chiral Limit
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
作者姓名:吴良凯 罗向前
作者单位:School of Physics and Engineering, Zhongshan (Sun Yat-Sen) University, Guangzhou 510275
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.

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
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
Authors:WU Liang-Kai  LUO Xiang-Qian
Affiliation:School of Physics and Engineering, Zhongshan (Sun Yat-Sen
Abstract:
Keywords:11.10.Wx  12.38.Gc  11.15.Ha
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