Speaker
Description
Measurements of jet substructure observables in heavy-ion collisions provide powerful constraints on the microscopic mechanisms of interactions between energetic partons and the QGP. Though there has been remarkable progress in measuring inclusive charged-particle jet substructure observables, a complete understanding of the identified particle production inside jets (jet hadrochemistry) and its modification in heavy-ion collisions remains elusive. Jet quenching models predict modifications to jet hadrochemical composition in heavy-ion collisions, arising from both jet-medium interactions and altered particle production in the jet wake. Measurements of identified particles in jets can help discriminate between different proposed jet-medium interaction mechanisms.
Enabled by the excellent PID capabilities of ALICE, we present the first measurements of π, K, and p ratios within jets and in the underlying event as a function of particle transverse momentum in pp and Pb–Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV. This study aims to advance our understanding of soft particle production mechanisms and distinguish modified jet fragmentation from bulk medium effects.
| Category | Experiment |
|---|---|
| Collaboration (if applicable) | ALICE |
