Influence of quenched jets on di-hadron correlations

TL;DR

This paper uses a jet absorption model to show that hadron pairs from quenched jets significantly influence di-hadron angular correlations, potentially explaining observed structures like the ridge and double-humped features.

Contribution

It introduces a simple model demonstrating the impact of quenched jet hadron pairs on di-hadron correlations and their azimuthal anisotropy, offering insights into their production mechanisms.

Findings

Hadron pairs from quenched jets can dominate correlation shapes.

These pairs can explain the near-side ridge and away-side double-humped structures.

The azimuthal anisotropy of these pairs is sensitive to emission angles.

Abstract

A simple jet absorption model is used to study the influence of hadron pairs produced by quenched jets, on di-hadron angular correlations at intermediate transverse momentum ($p_T$). We demonstrate that such pairs can dominate both the yield and the shape of angular correlations, and may account for the similar properties between the near-side "ridge" and the away-side "double-humped" structure seen in recent data. These hadron pairs also show azimuthal anisotropy which is sensitive to the emission angle of hadrons relative to that of the jet. Measurement of this anisotropy may provide a constraint for elucidating the production mechanism for near- and away-side hadron pairs at intermediate $p_T$.