论文标题
来自AMPT模型的中子密度波动和中子普罗顿相关性
Neutron density fluctuation and neutron-proton correlation from AMPT model
论文作者
论文摘要
使用多相传输（AMPT）模型，我们研究了Au+Au碰撞在$ \ sqrt {s_ \ text {nn}} = $ 7.7-200 GEV产生的物质中的相对中子密度波动和中子蛋白相关性。还讨论了这两个观察结果的速度，中心性和能量依赖性。质子，Deuteron和Triton $ n_tn_p/n_d^2 $的光核产量比直接从相对中子密度波动和中子 - 普罗顿相关性直接计算出来，随着速度覆盖率而降低，并随着碰撞的中心性而增加。我们的研究还发现，该比率在碰撞能量依赖性中没有表现出任何非单调行为。由于在AMPT模型中没有一阶相变或关键物理，因此我们的工作提供了提取实验中光核产生的相对中子密度波动的参考。
Using the multiphase transport (AMPT) model, we study the relative neutron density fluctuation and neutron-proton correlation in matter produced by Au+Au collisions at $\sqrt{s_\text{NN}} = $7.7-200 GeV. The rapidity, centrality, and energy dependence of these two observations are also discussed. The light nuclei yield ratio of proton, deuteron, and triton $N_tN_p/N_d^2$ calculated directly from the relative neutron density fluctuation and neutron-proton correlation, decreases with rapidity coverage and increases with collision centrality. Our study also found that the ratio does not exhibit any non-monotonic behavior in collision energy dependence. Since there is no first-order phase transition or critical physics in the AMPT model, our work provides a reference for extracting the relative neutron density fluctuation from light nuclei production in experiments.
