论文标题
来自强子共振气体模型的手性冷凝物
Chiral condensate from a hadron resonance gas model
论文作者
论文摘要
在这项工作中，我们解决了一个问题，即通过非相互作用的强子共振气体模型可以理解手性跨界过渡的问题。使用有关强子质量变化的最新结果，与晶格量子染色体动力学的亲质质量有关，我们研究了2+1风味QCD中重新归一化的手性冷凝物的温度依赖性。此外，我们建议一个更好的标准来估计伪造温度，该估计给出了$ t_c = 161.2 \ pm 1.7 $ 1.7 $ MEV，与强子共振气体模型或手动扰动理论中的所有早期结果相比，这得到了很大改善。对于伪行线的曲率，我们发现$κ__2= 0.0203（7）$，这与连续性外推晶格结果非常吻合。
In this work we address the question of how well the chiral crossover transition can be understood in terms of a noninteracting hadron resonance gas model. Using the latest results on the variation of hadron masses as a function of the pion mass from lattice quantum chromodynamics, we study the temperature dependence of the renormalized chiral condensate in 2+1 flavor QCD. Furthermore, we suggest a better criterion to estimate of the pseudocritical temperature, which gives $T_c = 161.2 \pm 1.7$ MeV, which is much improved compared to all the earlier results within the hadron resonance gas model or chiral perturbation theory. For the curvature of the pseudocritical line we find $κ_2 = 0.0203(7)$, which is in very good agreement with continuum extrapolated lattice results.
