Non-photonic electron-hadron azimuthal correlation for AuAu, CuCu and pp collisions at $\sqrt{s_{NN}}=200$ GeV

TL;DR

This study investigates how heavy quarks interact with the medium created in different collision systems at high energy by analyzing azimuthal correlations between non-photonic electrons and hadrons, providing insights into quark energy loss mechanisms.

Contribution

It presents the first systematic comparison of non-photonic electron-hadron correlations across AuAu, CuCu, and pp collisions at 200 GeV, revealing system-size effects on heavy quark interactions.

Findings

System-size dependence of heavy quark jet-medium interactions observed.

Relative charm and bottom contributions to non-photonic electrons extracted.

Constraints on charm and bottom quark energy loss in the medium.

Abstract

We present preliminary STAR results of azimuthal correlations between non-photonic electrons and hadrons in AuAu, CuCu and pp at $\sqrt{s_{NN}}=200$ GeV. Comparison of the e-h correlations from these colliding systems allows one to study the system-size dependence of heavy quark jet-medium interactions. We also report on the relative charm and bottom contributions to non-photonic electrons extracted from correlations measured in pp collisions. Our results, when combined with $R_{AA}$ measurements of non-photonic electrons, constrain the charm and bottom energy loss in the dense medium.