Orateur
Description
Correlations between the harmonic flow coefficients $v_1$, $v_2$, $v_3$ and $v_4$ of nucleons in peripheral Au+Au collisions at 1.23A GeV are investigated with the Ultra-relativistic Quantum Molecular Dynamics model employing different Equations-of-State (hard Skyrme, soft Skyrme, Chiral-Mean-Field). Using an event-by-event selection based on the final state $v_2$ it is shown that the triangular flow changes its slope around midrapidity while the quadrangular flow changes its curvature in these different $v_2$-event classes. The correlations of the flow coefficients are explained with the intricate time dependence of spectator shadowing blocking the early in-plane expansion. The results on the flow correlations thus reveal a strong sensitivity to the EoS which will allow to measure the Equation-of-State at large baryon densities more precisely than is usually possible. Finally the model is used to calculate the first and predict the second order flow coefficients of hypernuclei.
