Abstract
A selection of new jet substructure measurements are reported from the ALICE experiment at the CERN LHC in both proton-proton and heavy-ion collisions. These include the first fully corrected inclusive measurements of the groomed jet momentum fraction and the groomed jet radius, as well as the \(N\)-subjettiness distribution and the fragmentation distribution of reclustered subjets. We also report on the measurement of several groomed substructure observables of heavy-flavor jets in pp collisions, fragmentation functions and the new measurements of the radial distributions of D\(^{0}\) mesons or \(\Lambda _{c}^{ + }\) baryons in jets. The measurements are compared to theoretical calculations and provide new constraints on the physics underlying parton fragmentation and jet quenching.
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Funding
This work has been supported by the Hungarian NKFIH/OTKA FK 131979 and K 135515 grants, as well as the NKFIH 2019-2.1.6-NEMZ_KI-2019-00011 project.
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Vértesi, R. Jet Substructure Measurements with ALICE. Phys. Part. Nuclei 54, 670–676 (2023). https://doi.org/10.1134/S1063779623040354
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DOI: https://doi.org/10.1134/S1063779623040354