Erlangen 2026 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 40: Heavy-Ion Collisions and QCD Phases VI
HK 40.7: Talk
Thursday, March 19, 2026, 17:45–18:00, PHIL C 601
Measurement of radius dependent jet suppression in Pb–Pb collisions at √sNN = 5.02 TeV with a novel mixed-event approach — •Nadine Alice Grünwald for the ALICE Germany collaboration — Physikalisches Institut, Universität Heidelberg
The Quark-Gluon Plasma (QGP) is produced in heavy-ion collisions where quarks and gluons are deconfined and new physics phenomena emerge. The ALICE experiment is dedicated to measure heavy-ion collisions at the LHC where the QGP can be studied using jets from partons, which are produced in the early stage of the collisions.
In this talk mixed events as a new approach to describe the uncorrelated background in jet measurements in heavy-ion collisions in ALICE are presented.
The resulting charged-particle jet RAA measurements have high precision over a broad kinematic range, reaching significantly lower jet pT values as compared to the traditional analyses. Various jet resolution parameters are studied to measure the radius dependence of the jet energy loss and thereby the redistribution of the lost energy to the surrounding QGP medium. Comparison of these measurements to theoretical calculations including the medium response will provide new insight into jet quenching phenomenology and its underlying mechanism.
Keywords: ALICE; jets; mixed-events