论文标题
（2+1）的声音方程（2+1） - 在陌生物质中含有QCD的QCD，在非变化净baryon-number密度下
Equation of state and speed of sound of (2+1)-flavor QCD in strangeness-neutral matter at non-vanishing net baryon-number density
论文作者
论文摘要
我们更新（2+1）含量QCD的QCD方程的结果，该QCD具有从八阶Taylor系列获得的非零保守的电荷化学电位。我们介绍了基本的散装热力学观察到陌生性 - 中性强度相互作用的物质，即使用PADé近似值的压力，数量密度，能量和熵密度以及简历Taylor系列结果。此外，我们计算了声音速度以及每个净baryon数量恒定熵线上的陌生物质的绝热压缩因子。我们表明，状态方程（$ p（n_b），ε（n_b）$）已经由$ 4^{\ rm th} $ - 在相对论重的ION Coldider处的碰撞器模式下的横梁能量扫描均可在整个温度下进行$ 4^{\ rm th} $ - 订购Taylor系列。
We update results on the QCD equation of state in (2+1)-flavor QCD with non-zero conserved charge chemical potentials obtained from an eighth-order Taylor series. We present results for basic bulk thermodynamic observables of strangeness-neutral strong-interaction matter, i.e. pressure, number densities, energy and entropy density, and resum Taylor series results using Padé approximants. Furthermore, we calculate the speed of sound as well as the adiabatic compression factor of strangeness-neutral matter on lines of constant entropy per net baryon number. We show that the equation of state ($P(n_B), ε(n_B)$) is already well described by the $4^{\rm th}$-order Taylor series in almost the entire range of temperatures accessible with the beam energy scan in collider mode at the Relativistic Heavy Ion Collider.
