论文标题
在$ \ sqrt {s_ {nn}} = 7.7 $ GEV的Au+Au碰撞中，质子累积物和相关功能的动态开发。
Dynamical development of proton cumulants and correlation functions in Au+Au collisions at $\sqrt{s_{NN}} = 7.7$ GeV from a multiphase transport model
论文作者
论文摘要
保守电荷分布的高阶累积物（例如净 - 巴里昂数字）对量子染色体动力学（QCD）相变和QCD临界点敏感。我们在$ \ sqrt {s_ {s_ {nn}} = 7.7 $ GEV的Au+au碰撞中计算质子，抗蛋白和Net-Proton多重分布的累积和相关函数。 AMPT模型基本上可以描述通过Star实验测量的质子和Net-Proton的累积比率，累积比率（归一化）相关功能的趋势。 AMPT模型中的多个（BARYON）相关性与Baryon数量保护的期望一致。我们证明了多个（Baryon）相关性遭受重离子碰撞的动态演变。我们的结果为搜索相对论重型离子碰撞的关键终点的可能的关键行为提供了基准。
Higher-order cumulants of the distributions of conserved charges, such as net-baryon number, are sensitive to the quantum chromodynamics(QCD) phase transition and the QCD critical point. We calculate the cumulants and correlation functions of proton, antiproton, and net-proton multiplicity distributions in Au+Au collisions at $\sqrt{s_{NN}} = 7.7$ GeV using a multiphase transport model(AMPT). The AMPT model can basically describe the trends of cumulants, cumulant ratios, (normalized) correlation functions of the proton and net-proton measured by the STAR experiment. The multiproton (baryon) correlations in the AMPT model are consistent with the expectation from baryon number conservation. We demonstrate that multiproton (baryon) correlations suffer the dynamical evolution of heavy-ion collisions. Our results provide a baseline for searching for the possible critical behaviors at the critical end point in relativistic heavy-ion collisions.
