Jul 6 – 13, 2022
Bologna, Italy
Europe/Rome timezone

Measurement of collective dynamics in pp, Xe+Xe, and Pb+Pb collisions with the ATLAS detector

Jul 8, 2022, 5:15 PM
15m
Room 3 (Verde)

Room 3 (Verde)

Parallel Talk Heavy Ions Heavy Ions

Speaker

Tomasz Bold (AGH-UST)

Description

This talk presents ATLAS measurements of collective, flow phenomena in a variety of collision systems, including pp collisions at 13 TeV, Xe+Xe collisions at 5.44 TeV, and Pb+Pb collisions at 5.02 TeV. These include measurements of vn-[pT] correlations in Xe+Xe and Pb+Pb, which carry important information about the initial-state geometry of the Quark-Gluon Plasma and can potentially shed light on any quadrupole deformation in the Xe nucleus; measurements of flow decorrelations differential in rapidity, which probe the longitudinal structure of the colliding system; and measurements of the sensitivity of collective behavior in pp collisions to the presence of jets, which seek to distinguish the role that semi-hard processes play in the origin of these phenomena in small systems. These measurements furthermore provide stringent tests of the theoretical understanding of the initial state in heavy ion collisions.

In-person participation Yes

Primary author

Presentation materials