Jet substructure measurements with ALICE
Robert Vertesi (for the ALICE Collaboration)
TL;DR
This paper presents new jet substructure measurements from ALICE at CERN, including groomed jet properties and heavy-flavor jet fragmentation, providing insights into parton fragmentation and jet quenching in proton-proton and heavy-ion collisions.
Contribution
It reports the first fully corrected measurements of groomed jet observables and heavy-flavor jet substructure in a comprehensive experimental study.
Findings
First fully corrected groomed jet measurements
New constraints on parton fragmentation models
Insights into jet quenching mechanisms
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 -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 mesons or 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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