标题： 高温下的介子关联函数 显示英文标题

标题： Meson correlation functions at high temperatures

摘要： 我们展示了不同介子通道在格点上的关联函数和谱函数的初步结果。主要重点在于控制离散化效应以及有限体积效应。高于脱约束温度的筛选质量的外推由格点和连续极限下自由($T=\infty$)情形的结果指导。我们研究了淬火非微扰改善的Wilson-clover费米子以及超立方费米子作用，后者可能显示出较少的离散化效应。 显示英文摘要

摘要： We present preliminary results for the correlation- and spectral functions of different meson channels on the lattice. The main focus lies on gaining control over cut-off as well as on the finite-volume effects. Extrapolations of screening masses above the deconfining temperature are guided by the result of the free ($T=\infty$) case on the lattice and in the continuum. We study the quenched non-perturbatively improved Wilson-clover fermion as well as the hypercube fermion action which might show less cut-off effects.