| Issue |
EPJ Web Conf.
Volume 339, 2025
12th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions (Hard Probes 2024)
|
|
|---|---|---|
| Article Number | 02003 | |
| Number of page(s) | 6 | |
| Section | Contributed Talk: Jet Modification and Medium Response | |
| DOI | https://doi.org/10.1051/epjconf/202533902003 | |
| Published online | 05 November 2025 | |
https://doi.org/10.1051/epjconf/202533902003
Probing jet hadrochemistry in Pb–Pb collisions with ALICE
Yale University Wright Laboratory 272 Whitney Ave., New Haven, USA
* e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published online: 5 November 2025
Abstract
Jet substructure measurements in heavy-ion collisions provide constraints on jet quenching and the medium response in the quark–gluon plasma (QGP). Though there has been remarkable progress in inclusive-charged-hadron jet substructure measurements, understanding the identified particle composition of jets and their modification in heavy-ion collisions has proven challenging. Jet quenching models predict that the jet hadrochemical composition may be modified in heavy-ion collisions due to jet-medium interactions, as well as the medium response. Measurements of identified particles in jets can help discriminate between various parton-QGP interactions. We present the first measurements of π, K, and p ratios within charged-particle-jets, as well as in the underlying event (UE), as a function of particle transverse momentum in pp and Pb–Pb collisions at √sNN = 5.02 TeV. These measurements leverage the excellent PID capabilities of ALICE over a wide transverse momentum range. These results aim to understand soft particle production mechanisms and distinguish modified jet fragmentation from bulk effects.
© The Authors, published by EDP Sciences, 2025
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