System size dependence of strange particle correlations in Cu+Cu and Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV in STAR at RHIC

TL;DR

This study examines how the size of the colliding system influences strange particle correlations in Cu+Cu and Au+Au collisions at 200 GeV, providing insights into jet-like and long-range correlations in heavy-ion collisions.

Contribution

It presents the first detailed comparison of strange particle correlations across different system sizes at RHIC energies, highlighting the dependence on system size and strangeness content.

Findings

System size affects the strength of jet-like correlations.

Long-range pseudorapidity correlations vary with system size.

Strangeness content influences correlation patterns.

Abstract

Two particle azimuthal correlations with strange trigger particles ($K^0_S,\Lambda,\Xi$) are presented in Cu+Cu and Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV in STAR at RHIC. The near-side associated yield is investigated as a function of centrality, $p_T$, and strangeness content of the trigger to investigate possible flavour or meson/baryon differences. The system size dependence of both the jet-like correlations and the long range pseudorapidity correlations is studied to give insight into the origin of these two components.