System size dependence of strange hadron elliptic flow from Au plus Au and Cu plus Cu collisions

We present STAR results on elliptic flow upsilon(2) of strange and multi-strange particles from root(NN)-N-S = 200 GeV Au + Au and Cu + Cu collisions at RHIC. For each centrality of Au + Au and Cu + Cu collisions, we observe the transverse kinetic energy (m(T) - m) scaling at low p(T) and number-of-quark (n(q)) scaling at intermediate p(T). Larger upsilon(2)/epsilon(part) values are observed in more central collisions and in the systems with the larger colliding size, indicating that collective flow is stronger in more central collisions and in the systems with the larger colliding size.