Hadrochemistry in Jets

Measurements at RHIC and the LHC show a significant enhancement in baryon-to-meson yield ratios at intermediate transverse momenta in high-energy nuclear collisions compared to baseline e⁺e^- collisions. This enhancement is attributed to the following QGP effects: strong hydrodynamic flow and parton recombination. Jet probes have played a crucial role in exploring QGP properties, with observations showing notable alterations in jet yields and internal structures across various experiments. Despite apparent medium-induced changes to jet fragmentation patterns, the LHC results indicate that in-jet baryon-to-meson ratios in high energy nuclear collisions remain similar to those of p+p and e⁺e^- collisions. This talk explores novel experimental techniques for identifying in-jet hadrochemistry in heavy ion collisions at the LHC and RHIC, through the combination of jet-hadron correlation techniques and particle identification (PID). The application of these techniques to recently collected high-luminosity data enables the search for possible recombination between jet fragments and thermal partons, providing insight into the interplay between hadronization mechanisms in jets and the QGP.