Sprecher
Beschreibung
The recent light-ion runs at the LHC, specifically oxygen–oxygen (OO) and neon–neon (NeNe) collisions, have been remarkably successful, offering valuable new insights into Quark-Gluon Plasma (QGP) formation and collectivity in small systems. Despite this success, some tensions remain between the experimental measurements reported by different collaborations. A key potential source of these discrepancies could be the variation in centrality definitions across experiments. To address this issue, we employ a fully three-dimensional simulation framework—combining Trento, MUSIC, and SMASH—to model OO and NeNe collisions. By applying the specific centrality definitions used by each collaboration to our simulation results, we systematically quantify their impact on final-state observables. Additionally, we investigate centrality estimators based on initial-state models and explore the influence of NeHe configurations through nuclear mutation on these centrality definitions.