论文标题
QGP中QGP中的魅力与美的研究
Study of charm and beauty in QGP from unquenched lattice QCD
论文作者
论文摘要
我们介绍了伪级通道中完整QCD计算的炭和底部相关器以及相应的重建光谱函数。相关器是使用混合动作方法，三叶草改良的Wilson Valence Quarks在规格场配置上产生的，该配置生成了$ n_f = 2+1 $ 1 $ HISQ SEA夸克，物理奇怪的夸克质量和浅夸克质量对应于$M_π= 315 $ MEV。调整了魅力和底部夸克质量，以重现粒子数据组的自旋平均Quarkonium载体介体的实验质谱。对于光谱重建，我们使用基于来自不同频率区域的扰动光谱函数（例如pNRQCD阈值和真空贡献的阈值）的扰动光谱函数，远高于阈值。我们显示了全QCD的研究中首次获得的重建光谱函数的初步结果。
We present charmonium and bottomonium correlators and corresponding reconstructed spectral functions from full QCD calculations in the pseudoscalar channel. Correlators are obtained using a mixed-action approach, clover-improved Wilson valence quarks on gauge field configurations generated with $N_f=2+1$ HISQ sea quarks, with physical strange quark masses and light quark masses corresponding to $m_π=315$ MeV. The charm and bottom quark masses are tuned to reproduce the experimental mass spectrum of the spin averaged quarkonium vector mesons from the particle data group. For the spectral reconstruction, we use models based on perturbative spectral functions from different frequency regions like resummed thermal contributions around the threshold from pNRQCD and vacuum contributions well above the threshold. We show preliminary results of the reconstructed spectral function obtained for the first time in our study for full QCD.
