利用STAR实验的粒子比涨落和横向动量关联寻找QCD相变和临界点
Search for QCD Phase Transitions and the Critical Point utilizing Particle Ratio Fluctuations and Transverse Momentum Correlations from the STAR Experiment
摘要：
在重离子碰撞中，重子数、奇异度、电荷和同位旋等整体守恒量的动力学涨落可能携带着去禁闭和手征相变的信息. STAR实验全面研究了碰撞能量和电荷对动力学粒子比（$K/π$、$p/π$和$K/p$）涨落、净电荷涨落和中快度横向动量关联的依赖性，以及前快度中性电荷π介子涨落的依赖性。从新的测量的起伏观测$ν_{dyn}$和$r_{m,1}$和横向动量关联的能量依赖$\sqrt{s_{NN}}$ = 7.7-200 GeV Au+Au碰撞的中心性，电荷和碰撞能量的依赖。这些结果也比较预测强子模型。
英文摘要：
Dynamical fluctuations of the globally conserved quantities in heavy ion collision such as baryon number, strangeness, charge, and isospin are suggested to carry information about the deconfinement and chiral phase transitions. The STAR experiment has performed a comprehensive study of the collision energy and charge dependence of dynamical particle ratio ($K/π$, $p/π$, and $K/p$) fluctuations, net-charge fluctuations, and transverse momentum correlations at mid-rapidity, as well as neutral-charge pion fluctuations at forward rapidity. The centrality, charge, and collision energy dependence from new measurements of the fluctuation observables $ν_{dyn}$ and $r_{m,1}$ and the energy dependence of transverse momentum correlations from $\sqrt{s_{NN}}$ = 7.7-200 GeV Au+Au collisions are presented. These results are also compared to predictions from hadronic models.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
