The fluctuations of quadrangular flow

Author(s)

Giacalone, Giuliano ; Yan, Li ; Noronha-Hostler, Jacquelyn ; Ollitrault, Jean-Yves ; Huang, HZ ; Seto, R ; Thader, J ; Xu, N

• Document type: Journal article
• Source: WAKE CONFERENCE 2021; v. 779, p. 4-pg., 2017-01-01.

Abstract

The ATLAS Collaboration has measured for the first time the fourth cumulant of quadrangular flow, v(4){4}(4). Unlike the fourth cumulants of elliptic and triangular flows, it presents a change of sign above 30% centrality. We show that this change of sign is predicted by event-by-event hydrodynamics. We argue that it results from the combined effects of a nonlinear hydrodynamic response, which couples quadrangular flow to elliptic flow, and elliptic flow fluctuations. (AU)

• FAPESP's process: 16/03274-2 - Development of a 3+1 hydrodynamical code for studies of the Quark Gluon Plasma
• Grantee: Frédérique Marie Brigitte Sylvie Grassi
• Support Opportunities: Research Grants - Visiting Researcher Grant - International