First Result of Net-Charge Jet-Correlations from STAR

TL;DR

This paper reports on net-charge azimuthal correlations with high transverse momentum triggers in STAR, revealing similarities to total-charge correlations and insights into charge dynamics in high-energy collisions.

Contribution

It presents the first results on net-charge jet-correlations, comparing their shapes and spectra to total-charge correlations in high-energy collisions.

Findings

Net-charge correlation shape resembles total-charge

Near-side spectra are harder than inclusives

Away-side spectra are not much harder, ratio increases with pT

Abstract

We presented results on azimuthal correlation of net-charge with high $p_T$ trigger particles. It is found that the net-charge correlation shape is similar to that of total-charge. On the near-side, the net-charge and total-charge $p_T$ spectra have similar shape and both are harder than the inclusives. On the away-side, the correlated spectra are not much harder than the inclusives, and the net-charge/total-charge ratio increases with $p_T$ and is similar to the inclusive ratio.