Recent flow and correlation measurements from ATLAS in Pb+Pb collisions

AGH University of Krakow, Poland

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Published online: 17 April 2026

Abstract

This proceeding reports on the ATLAS measuremnt of v₂ and v₃ flow coefficients for charged particles produced in Pb+Pb collisions at √s_NN = 5.02 TeV collected with the ATLAS detector at the LHC. The v₂ and v₃ are obtained for high p_T, 1-400 GeV/c and in the centrality range 0–60%. Two methods, the scalar product and multi-particle cumulants, were used to probe the sensitivity to event-by-event fluctuations and non-flow effects. Positive values of v₂ and v₃ are observed up to a p_T ≃ 100 GeV/c and 25 GeV/c respectively. As jets are the primary source of high p_T particles, the measurement is sensitive to jets' interaction with QGP and in particular to the jets' QGP path-dependent energy loss.