论文标题
寒冷和密集QCD物质的状态在重新摄制理论中
Equation of state of cold and dense QCD matter in resummed perturbation theory
论文作者
论文摘要
我们讨论有限夸克质量的硬密集环重新召集，并评估$β$平衡中冷和密集QCD物质的状态（EOS）方程。夸克部门的重新召集具有降低重子数密度的作用，而EOS的不确定性比扰动QCD估计值小得多。我们的数值结果有利于从高密度重新召集的QCD计算与核物质密度区域外推EOS之间的EOS平滑匹配。我们还指出，EOS中的声速略微超过了保形极限。
We discuss the Hard Dense Loop resummation at finite quark mass and evaluate the equation of state (EoS) of cold and dense QCD matter in $β$ equilibrium. The resummation in the quark sector has an effect of lowering the baryon number density and the EoS turns out to have much smaller uncertainty than the perturbative QCD estimate. Our numerical results favor smooth matching between the EoS from the resummed QCD calculation at high density and the extrapolated EoS from the nuclear matter density region. We also point out that the speed of sound in our EoS slightly exceeds the conformal limit.
