Understanding jet quenching and medium response with di-hadron correlation

TL;DR

This paper reviews di-hadron correlations at RHIC to understand jet quenching and medium response, exploring their origins, relations, and implications for intermediate and low energy physics.

Contribution

It provides a comprehensive synthesis of di-hadron correlation data, linking jet fragmentation, medium response, and phenomena like the ridge and cone in a unified framework.

Findings

Correlation patterns vary with $p_T$, indicating complex medium interactions.

The near-side ridge and away-side cone are connected phenomena.

Medium response may originate from jet-medium interactions affecting hadron production.

Abstract

A brief review of the $p_T$ dependence of the dihadron correlations from RHIC is presented. We attempt to construct a consistent picture that can describe the data as a whole, focusing on the following important aspects, 1) the relation between jet fragmentation of survived jet and medium response to quenched jets, 2) the possible origin of the medium response and its relation to intermediate $p_T$ physics for single hadron production, 3) the connection between the near-side ridge and away-side cone, 4) and their relations to low energy results.