# Jet substructure from proton-proton to heavy-ion collisions with ALICE

- Institution: CERN
- Department: LHC Seminar
- Speaker: James Mulligan
- Year: 2021
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3003589)
- Licence: [CERN](http://copyright.web.cern.ch)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

The substructure of high energy jets produced at colliders provides a variety of opportunities to study quantum chromodynamics, from stringent tests of perturbative QCD calculations to the nonperturbative physics of hadronization. Jet substructure has also emerged as a tool to study the deconfined, strongly-coupled quark-gluon plasma (QGP) produced in heavy-ion collisions. While the QGP is too small and short-lived to be probed with traditional scattering beams, jets can be used as probes since their fragmentation pattern is modified as they traverse the QGP. In this talk, I will present recent jet substructure measurements with ALICE. I will discuss measurements in proton-proton collisions, which investigate the boundary between perturbative and nonperturbative QCD, and measurements in heavy-ion collisions, which provide new opportunities to reveal the nature of the quark-gluon plasma. These will include measurements of jet angularities, the groomed jet radius, and subjet fragmentation functions.

ALICE Collaboration, arXiv:2107.11303

ALICE Collaboration, arXiv:2107.12984

LHC Seminar - ALICE: https://cern.zoom.us/j/65451456972?pwd=ZTlERmI2R0Nwb2NMSnZRNDdHSktaZz09.

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## Lectures

1. [Jet substructure from proton-proton to heavy-ion collisions with ALICE](https://invisiblenetwork.ai/learn/cern/3003589/28537e236d21), 1 h 3 min (CERN's player)