论文标题
（2+1）-Flavour QCD中的手性敏感性
Chiral Susceptibility in (2+1)-flavour QCD
论文作者
论文摘要
我们使用第一原理QCD的功能ren义化组（FRG）方法计算（2+1）-Flavour QCD的手性敏感性。我们遵循手性敏感性的演变，质量减少，从光夸克和还原的夸克冷凝物获得。后者与HotQCD合作的最新结果进行了很好的比较。对于较小的pion质量，FRG和晶格结果仍然一致。特别是，手性临界温度的估计值非常良好。我们通过讨论对手性极限的不同外推结束。
We calculate chiral susceptibilities in (2+1)-flavour QCD for different masses of the light quarks using the functional renormalisation group (fRG) approach to first-principles QCD. We follow the evolution of the chiral susceptibilities with decreasing masses as obtained from both the light-quark and the reduced quark condensate. The latter compares very well with recent results from the HotQCD collaboration for pion masses $m_π\gtrsim 100\,\text{MeV}$. For smaller pion masses, the fRG and lattice results are still consistent. In particular, the estimates for the chiral critical temperature are in very good agreement. We close by discussing different extrapolations to the chiral limit.
