论文标题
使用A多相传输模型研究已鉴定颗粒的椭圆流波动
Investigation of the elliptic flow fluctuations of the identified particles using the A Multi-Phase Transport model
论文作者
论文摘要
多相传输（AMPT）模型用于使用参与者和观众事件平面研究已鉴定颗粒的椭圆流波动。预计使用一阶观众事件平面测量的椭圆流相对于抑制流动波动的真实反应平面的椭圆流。但是，使用二阶参与者平面测量的椭圆流有望捕获椭圆流的波动。我们的研究表明，一阶观众事件平面可用于研究AMPT模型中鉴定颗粒的椭圆流动波动。椭圆流的波动幅度显示出弱颗粒物种的依赖性和横向动量依赖性。这种观察将对理解椭圆流波动的来源具有重要意义。
A Multi-Phase Transport (AMPT) model is used to study the elliptic flow fluctuations of identified particles using participant and spectator event planes. The elliptic flow measured using the first order spectator event plane is expected to give the elliptic flow relative to the true reaction plane which suppresses the flow fluctuations. However, the elliptic flow measured using the second-order participant plane is expected to capture the elliptic flow fluctuations. Our study shows that the first order spectator event plane could be used to study the elliptic flow fluctuations of the identified particles in the AMPT model. The elliptic flow fluctuations magnitude shows weak particle species dependence and transverse momentum dependence. Such observation will have important implications for understanding the source of the elliptic flow fluctuations.
