Quantifying the degree of hydrodynamic behaviour in heavy-ion collisions

23 Sept 2024, 16:50
20m
Room 103

Room 103

Oral presentation 5. Nuclear PDFs, saturation, and early time dynamics Parallel 7: early time dynamics

Speaker

Clemens Werthmann (University of Wroclaw)

Description

Exploiting the first measurements of the same ion species in O+O collisons at RHIC and LHC, we propose an experimentally acessible observable to distinguish whether collective behavior builds up through a hydrodynamic expansion of a strongly interacting QGP or through few rescatterings in a non-equilibrated dilute medium. Our procedure allows to disentangle the effects of the initial state geometry and the dynamical response mechanism on the total resulting anisotropic flow. We validate the ability of our proposed observable to discriminate between systems with different interaction rates using results from event-by-event simulations in RTA kinetic theory. As a proof of concept, we extract the degree of hydrodynamization for Pb+Pb collisions at LHC from experimental data.

Category Theory

Author

Clemens Werthmann (University of Wroclaw)

Co-author

Prof. Soeren Schlichting (Universität Bielefeld)

Presentation materials