论文标题
Au+Au反应的1.23 AgeV中的谐波流相关性：状态方程和扩展几何形状的新测试场
Harmonic flow correlations in Au+Au reactions at 1.23 AGeV: A new testing ground for the Equation-of-State and expansion geometry
论文作者
论文摘要
谐波流量系数$ v_1 $，$ v_2 $，$ v_3 $和$ v_4 $的核子在半颈au+au collisions中的光束能量为1.23〜agev中的相关性在HADRONIC运输方法中研究了超平衡的量子分子动力学（URQMD）。与超相关的碰撞能（在相对于各自的事件平面评估流量系数的情况下）相反，我们预测流量谐波与反应平面之间的强相关性。根据质子中期的最终状态椭圆流的最终状态椭圆流的选择，我们表明，作为速度的函数，i）三角流的征兆变化，ii）$ v_4 $的形状从凸面变为凹形，iii，iii），iii）$ v_3 \ propto v_1v_2 $和$ v_2 $和$ v_4 \ prop v_2^2^2^2^2^2^2^2^2^2^2^2^2^2^2^2^2^2^2^2^2^2^2研究了谐波流量系数。
Correlations between the harmonic flow coefficients $v_1$, $v_2$, $v_3$ and $v_4$ of nucleons in semi-peripheral Au+Au collisions at a beam energy of 1.23~AGeV are investigated within the hadronic transport approach Ultra-relativistic Quantum Molecular Dynamics (UrQMD). In contrast to ultra-relativistic collision energies (where the flow coefficients are evaluated with respect to the respective event plane), we predict strong correlations between the flow harmonics with respect to the reaction plane. Based on an event-by-event selection of the midrapidity final state elliptic flow of protons we show that as a function of rapidity, I) the sign of the triangular flow changes, II) that the shape of $v_4$ changes from convex to concave, and III) that $v_3\propto v_1v_2$ and $v_4\propto v_2^2$ for all different event classes, indicating strong correlations between all investigated harmonic flow coefficients.
