论文标题
QCD相变的手性极限
QCD phase transition in the chiral limit
论文作者
论文摘要
我们提出了基于晶格QCD的确定QCD的手性相变温度，其中两个无质量（上下）和一个具有其物理质量的奇怪夸克。我们提出并计算了两个光夸克质量值的手性过渡温度的两个新型估计量，对应于$ 58〜 {\ rm Mev} \ lisesimm_π\ Lessim 163〜 {\ rm Mev} $的goldstone pion块质量。手性相转变温度是通过使用通用缩放分析推断到消失的触发质量来确定的。热力学，连续和手性外推之后，我们发现手性相变温度$ t_c^0 = 132^{+3} _ { - 6} $ MEV。我们还提出了一些有关有效$ u_a（1）$恢复和手性相转换向手性极限的相互作用的初步计算。
We present a lattice QCD based determination of the chiral phase transition temperature in QCD with two massless (up and down) and one strange quark having its physical mass. We propose and calculate two novel estimators for the chiral transition temperature for several values of the light quark masses, corresponding to Goldstone pion masses in the range of $58~{\rm MeV}\lesssim m_π\lesssim 163~{\rm MeV}$. The chiral phase transition temperature is determined by extrapolating to vanishing pion mass using universal scaling analysis. After thermodynamic, continuum and chiral extrapolations we find the chiral phase transition temperature $T_c^0=132^{+3}_{-6}$ MeV. We also present some preliminary calculations on interplay of effective $U_A(1)$ restoration and chiral phase transition towards chiral limit.
