System and energy dependence of strange and non-strange particle correlations in STAR at RHIC

TL;DR

This study investigates how particle correlations in high-energy nuclear collisions depend on system size and energy, focusing on strange and non-strange particles to differentiate between theoretical models of their production.

Contribution

It provides detailed analysis of particle correlation components in different collision systems and energies, highlighting their dependence and potential to test production models.

Findings

Correlation yields vary with system size and energy.

Distinct behaviors observed for different particle species.

Results help discriminate between competing production models.

Abstract

Two-particle high-$p_T$ triggered correlations in $Cu+Cu$ and $Au+Au$ collisions at $\sqrt{s_{NN}}$ = 62 $GeV$ and $\sqrt{s_{NN}}$ = 200 $GeV$ in STAR at RHIC are presented. The $N_{part}$, $p_T^{associated}$, and $p_T^{trigger}$ dependence of the yield per trigger in the \textit{Jet} and \textit{Ridge} components of the near-side is investigated for h, $K^0_S$, $\Lambda$, and $\Xi$ trigger and associated particles. The system and energy dependence of these components is a potentially powerful tool to distinguish between models used to describe their production.