  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.
