论文标题
在有限化学势下的介子筛选质量
Meson screening mass at finite chemical potential
论文作者
论文摘要
了解有限化学势的筛选质量可以提供洞察QCD相图的性质。但是，有限化学势的晶格研究遭受了符合标志问题的众所周知问题，这使得计算出可观察到的物品，例如筛选相关器和有限化学势的筛选质量，这非常具有挑战性。一种方法是在化学势中扩展泰勒系列中可观察到的可观察到的方法，并将有限密度校正计算为可观察到的。在本次演讲中，我们将使用这种方法来计算有限温度下的伪层膜的筛选质量和化学潜力，通过在泰勒级数中扩展筛选相关因子在化学势中。我们将为筛选质量W.R.T.的第二个导数提供结果。化学潜力。我们的计算是在使用（2+1）HISQ/TROE Action生成的$ 64^3 \ times 8 $晶格上完成的。
Knowledge of the screening masses at finite chemical potential can provide insight into the nature of the QCD phase diagram. However, lattice studies at finite chemical potential suffer from the well-known issue of the sign problem, which has made the calculation of observables such as screening correlators and screening masses at finite chemical potential quite challenging. One way to proceed is by expanding the observable in a Taylor series in the chemical potential and hence calculating the finite-density corrections to the observable. In this talk, we will use this approach to calculate the screening mass of the pseudoscalar meson at finite temperatures and chemical potential by expanding the screening correlator in a Taylor series in the chemical potential. We will present our results for the second derivative of the screening mass w.r.t. the chemical potential. Our calculation was done on $64^3 \times 8$ lattices generated using the (2+1) HISQ/tree action.
