Strange hadron elliptic flow from 200 GeV Cu+Cu collisions

TL;DR

This paper investigates the elliptic flow of strange hadrons in Cu+Cu collisions at 200 GeV, comparing results with Au+Au collisions and hydrodynamic models to understand early collision dynamics.

Contribution

It provides a systematic analysis of strange hadron elliptic flow dependence on collision centrality in Cu+Cu collisions at 200 GeV, extending previous studies on Au+Au collisions.

Findings

Elliptic flow varies with collision centrality.

Comparison shows differences between Cu+Cu and Au+Au collisions.

Data aligns or deviates from ideal hydrodynamic predictions.

Abstract

Collective flow reflects dynamical evolution in high-energy heavy ion collisions. In particular, the strange hadron elliptic flow reflects early collision dynamics. We present results from a systematic analysis of the centrality dependence of strange hadron elliptic flow ($v_2$) measurement of $K_{S}^{0}$, $\Lambda$ and $\Xi$ for Cu + Cu collisions at 200 GeV. Results for Cu + Cu collisions are compared with results previously reported for Au + Au collisions. We will also compare our data with results from ideal hydrodynamic calculations.