Prospects of angular correlation studies of identified hadrons in the LHC Run 3 with the ALICE experiment

TL;DR

This paper discusses the potential of using angular correlation measurements of identified hadrons in heavy-ion collisions at LHC Run 3 with the upgraded ALICE detector to better understand hadronization mechanisms.

Contribution

It highlights the prospects of precise baryon angular correlation measurements with the upgraded ALICE detector to constrain hadronization models.

Findings

Angular correlations vary with quark content and system properties.

Current models fail to reproduce like-sign baryon correlations.

Upgraded detector enables more accurate measurements.

Abstract

The study of angular correlations of identified hadrons makes it possible to understand the impact of different processes that contribute to the hadronization mechanism in heavy-ion collisions and small collision systems. Depending on the quark composition and the system properties, the angular correlations exhibit different shapes. The mechanism of hadron production is non-perturbative, and because of that, only phenomenological models can be used. Those models still fail to fully describe hadron production. In particular, angular correlations for like-sign baryons are not reproduced by the models. The upgraded ALICE detector and the new analysis framework allow for precise measurements of baryon angular correlations which provide stronger constraints on the hadronization mechanisms.