论文标题
（2+1） - 在非零巴属化学势下（2+1）的QCD中的等温速度和等温速度
Isothermal and isentropic speed of sound in (2+1)-flavor QCD at non-zero baryon chemical potential
论文作者
论文摘要
最近，在恒定温度$ c^2_t $等条件下，对QCD中声速的计算的兴趣或每个净baryon number $ c^2_s $的恒定熵在讨论来自重离子实验的实验结果时出现。已经强调的是，前者尤其与在晶格QCD中计算的保守电荷波动的高阶累积物密切相关。我们在这里以$ C^2_t $和$ C^2_s $的形式介绍结果，并比较消失的陌生化学潜力和消失的净陌生数字与强子共振气体模型计算的结果。我们强调了由轻型介子部门引起的低温下两个可观察到的差异，这不会造成$ c^2_t $。
Recently interest in calculations of the speed of sound in QCD under conditions like constant temperature $c^2_T$ or constant entropy per net baryon number $c^2_s$ arose in the discussion of experimental results coming from heavy ion experiments. It has been stressed that the former in particular is closely related to higher order cumulants of conserved charge fluctuations that are calculated in lattice QCD. We present here results on $c^2_T$ and $c^2_s$ and compare results at vanishing strangeness chemical potential and vanishing net strangeness number with hadron resonance gas model calculations. We stress the difference of both observables at low temperature arising from the light meson sector, which does not contribute to $c^2_T$.
