论文标题
重夸克扩散系数随梯度流
Heavy quark diffusion coefficient with gradient flow
论文作者
论文摘要
重夸克扩散系数在铬电和铬磁相关器的光谱函数中编码，后者描述了T/M的贡献。我们在两个不同的温度下研究这些相关器$ t = 1.5T_C $和$ t = 10^4T_C $在SU（3）量规理论的解剖阶段中。我们使用梯度流量减少降噪。我们同时执行连续性和零流动时间限制，以提取重夸克扩散系数。我们的结果表明，重夸克扩散系数的质量抑制作用为底部夸克的20％，而Charm Quark的质量抑制作用为$ t = 1.5T_C $的34％。
The heavy quark diffusion coefficient is encoded in the spectral functions of the chromo-electric and the chromo-magnetic correlators, of which the latter describes the T/M contribution. We study these correlators at two different temperatures $T=1.5T_c$ and $T=10^4T_c$ in the deconfined phase of SU(3) gauge theory. We use gradient flow for noise reduction. We perform both continuum and zero flow time limits to extract the heavy quark diffusion coefficient. Our results imply that the mass suppressed effects in the heavy quark diffusion coefficient are 20% for bottom quarks and 34% for charm quark at $T=1.5T_c$.
