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arXiv 1105.0063hep-phhep-lat
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手征交叉、静态光和轻-轻介子谱以及解除禁闭交叉

The chiral crossover, static-light and light-light meson spectra, and the deconfinement crossover

Pedro Bicudo, Nuno Cardoso, Marco Cardoso

摘要:

我们研究了有限温度T下的手征交叉、光-光和静-光介子的光谱以及退禁闭交叉。我们的框架是与截断库仑规范QCD相关的禁闭手征不变夸克模型。由于我们处理的是轻夸克,其中线性势支配夸克凝聚和光谱,我们只专注于夸克-反夸克相互作用的线性限制势。我们利用T依赖弦张力先前拟合从格点量子色动力学数据,并配合先前计算的动态生成的组分夸克质量。我们扫描的T的组成夸克质量上的影响,介子谱和polyakov环。

英文摘要:

We study the chiral crossover, the spectra of light-light and of static-light mesons and the deconfinement crossover at finite temperature T. Our framework is the confining and chiral invariant quark model, related to truncated Coulomb gauge QCD. Since we are dealing with light quarks, where the linear potential dominates the quark condensate and the spectrum, we only specialize in the linear confining potential for the quark-antiquark interaction. We utilize T dependent string tensions previously fitted from lattice QCD data, and a fit of previously computed dynamically generated constituent quark masses. We scan the T effects on the constituent quark mass, on the meson spectra and on the polyakov loop.

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