标题： 核子和介子椭圆流的激发函数在相对论重离子碰撞中 显示英文标题

标题： Excitation function of nucleon and pion elliptic flow in relativistic heavy-ion collisions

摘要： 在重离子碰撞的相对论输运（ART）模型中，我们表明随着入射能量的增加，在中等中央的Au+Au碰撞中观察到的质子从平面外到平面内的椭圆流特征变化与使用刚性核状态方程（K=380 MeV）计算的结果一致。 我们还研究了介子的椭圆流以及核子和介子椭圆流的横向动量依赖性，以进一步了解碰撞动力学。 显示英文摘要

摘要： Within a relativistic transport (ART) model for heavy-ion collisions, we show that the recently observed characteristic change from out-of-plane to in-plane elliptic flow of protons in mid-central Au+Au collisions as the incident energy increases is consistent with the calculated results using a stiff nuclear equation of state (K=380 MeV). We have also studied the elliptic flow of pions and the transverse momentum dependence of both the nucleon and pion elliptic flow in order to gain further insight about the collision dynamics.