论文标题
在非零温度下的开放式魅力介子：从晶格QCD产生耐药阶段
Open charm mesons at nonzero temperature: results in the hadronic phase from lattice QCD
论文作者
论文摘要
我们使用n_f = 2+1个动力学口味的晶格QCD模拟来研究随温度升高的D和D_S介子会发生什么。我们可以在Hadronic阶段进入五个温度。使用确定的地面质量在最低温度下，我们通过分析介体相关器的比率来研究温度上升的效果，而无需进一步拟合或光谱重建。在伪尺度和矢量通道中，我们证明温度效应在百分比中，并且可以通过接近热交叉时的地面质量来捕获。另一方面，在轴向矢量和标量通道中，温度效应在整个辐射阶段很明显。
We study what happens to D and D_s mesons as the temperature increases, using lattice QCD simulations with N_f=2+1 dynamical flavours on anistropic lattices. We have access to five temperatures in the hadronic phase. Using the determined groundstate mass at the lowest temperature, we investigate the effect of rising temperature by analysing ratios of mesonic correlators, without the need for further fitting or spectral reconstruction. In the pseudoscalar and vector channels, we demonstrate that temperature effects are at the percent level and can be captured by a reduction of the groundstate mass as the thermal crossover is approached. In the axial-vector and scalar channels on the other hand, temperature effects are prominent throughout the hadronic phase.
