A Four Component Picture for Jet Induced Correlations in Heavy Ion Collisions?

TL;DR

This paper reviews recent experimental results on two- and three-particle correlations in heavy ion collisions, focusing on the structure of away side jet correlations and their potential decomposition into multiple components.

Contribution

It proposes a four-component model for jet-induced correlations, including a punch-through and shoulder component, and compares properties of the ridge and shoulder structures.

Findings

Similar properties between ridge and shoulder structures

Particle ratios and spectra are consistent across components

Future measurements could clarify the decomposition of jet correlations

Abstract

These proceedings review recent results from two and three particle correlations in heavy ion collisions. In particular we discuss the modified structure of the away side jet correlations. Under the assumption that the away side can be decomposed into a punch through component at $\Delta\phi=\pi$ and a shoulder component with a peak displaced from $\pi$ many similar properties are observed between the ridge and shoulder. The particle ratios, yields and $p_T$ spectra are in near agreement. We also highlight important future measurements, including investigating if the decomposition of the away side jet correlations remains reasonable with high $p_T$ triggers and technical improvements to the extraction of jet induced correlations.